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Overview
Comment: | Update SQLite core library to the latest 3.8.9 pre-release. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
3d82917c23c624a1f62a25e5724cef4a |
User & Date: | mistachkin 2015-04-02 22:58:14.116 |
Context
2015-04-08
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18:29 | Update SQLite core library to the 3.8.9 release. check-in: 40495eae0b user: mistachkin tags: trunk | |
2015-04-02
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22:58 | Update SQLite core library to the latest 3.8.9 pre-release. check-in: 3d82917c23 user: mistachkin tags: trunk | |
2015-03-30
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20:34 | Add more tests for ticket [94252b9059]. check-in: 9a50efa0ae user: mistachkin tags: trunk | |
Changes
Changes to Doc/Extra/Provider/version.html.
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41 42 43 44 45 46 47 48 49 50 51 52 53 54 | </table> </div> <div id="mainSection"> <div id="mainBody"> <h1 class="heading">Version History</h1> <p><b>1.0.97.0 - May XX, 2015 <font color="red">(release scheduled)</font></b></p> <ul> <li>Updated to <a href="https://www.nuget.org/packages/EntityFramework/6.1.3">Entity Framework 6.1.3</a>.</li> <li>Prevent the IDataReader.GetDataTypeName method from throwing "No current row" exceptions. Fix for <a href="https://system.data.sqlite.org/index.html/info/94252b9059">[94252b9059]</a>.</li> <li>When BinaryGUID handling is off, transform the LINQ parameter types as well. Fix for <a href="https://system.data.sqlite.org/index.html/info/a4d9c7ee94">[a4d9c7ee94]</a>. <b>** Potentially Incompatible Change **</b></li> <li>The IDataReader.GetDataTypeName method should always return the declared type name. <b>** Potentially Incompatible Change **</b></li> </ul> <p><b>1.0.96.0 - March 5, 2015</b></p> <ul> | > | 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 | </table> </div> <div id="mainSection"> <div id="mainBody"> <h1 class="heading">Version History</h1> <p><b>1.0.97.0 - May XX, 2015 <font color="red">(release scheduled)</font></b></p> <ul> <li>Updated to <a href="https://www.sqlite.org/draft/releaselog/3_8_9.html">SQLite 3.8.9</a>.</li> <li>Updated to <a href="https://www.nuget.org/packages/EntityFramework/6.1.3">Entity Framework 6.1.3</a>.</li> <li>Prevent the IDataReader.GetDataTypeName method from throwing "No current row" exceptions. Fix for <a href="https://system.data.sqlite.org/index.html/info/94252b9059">[94252b9059]</a>.</li> <li>When BinaryGUID handling is off, transform the LINQ parameter types as well. Fix for <a href="https://system.data.sqlite.org/index.html/info/a4d9c7ee94">[a4d9c7ee94]</a>. <b>** Potentially Incompatible Change **</b></li> <li>The IDataReader.GetDataTypeName method should always return the declared type name. <b>** Potentially Incompatible Change **</b></li> </ul> <p><b>1.0.96.0 - March 5, 2015</b></p> <ul> |
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Changes to SQLite.Interop/props/sqlite3.props.
1 2 3 4 5 6 7 8 9 10 11 | <?xml version="1.0" encoding="utf-8"?> <!-- * * sqlite3.props - * * Written by Joe Mistachkin. * Released to the public domain, use at your own risk! * --> <Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="4.0"> <PropertyGroup Label="UserMacros"> | | | | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | <?xml version="1.0" encoding="utf-8"?> <!-- * * sqlite3.props - * * Written by Joe Mistachkin. * Released to the public domain, use at your own risk! * --> <Project DefaultTargets="Build" xmlns="http://schemas.microsoft.com/developer/msbuild/2003" ToolsVersion="4.0"> <PropertyGroup Label="UserMacros"> <SQLITE_MANIFEST_VERSION>3.8.9.0</SQLITE_MANIFEST_VERSION> <SQLITE_RC_VERSION>3,8,9,0</SQLITE_RC_VERSION> <SQLITE_COMMON_DEFINES>_CRT_SECURE_NO_DEPRECATE;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;SQLITE_THREADSAFE=1;SQLITE_USE_URI=1;SQLITE_ENABLE_COLUMN_METADATA=1;SQLITE_ENABLE_STAT4=1;SQLITE_ENABLE_FTS3=1;SQLITE_ENABLE_LOAD_EXTENSION=1;SQLITE_ENABLE_RTREE=1;SQLITE_SOUNDEX=1;SQLITE_ENABLE_MEMORY_MANAGEMENT=1</SQLITE_COMMON_DEFINES> <SQLITE_EXTRA_DEFINES>SQLITE_HAS_CODEC=1</SQLITE_EXTRA_DEFINES> <SQLITE_WINCE_200X_DEFINES>SQLITE_OMIT_WAL=1</SQLITE_WINCE_200X_DEFINES> <SQLITE_WINCE_2013_DEFINES>HAVE_ERRNO_H=1;SQLITE_MSVC_LOCALTIME_API=1</SQLITE_WINCE_2013_DEFINES> <SQLITE_DEBUG_DEFINES>SQLITE_DEBUG=1;SQLITE_MEMDEBUG=1;SQLITE_ENABLE_EXPENSIVE_ASSERT=1</SQLITE_DEBUG_DEFINES> <SQLITE_RELEASE_DEFINES>SQLITE_WIN32_MALLOC=1</SQLITE_RELEASE_DEFINES> <SQLITE_DISABLE_WARNINGS>4055;4100;4127;4146;4210;4232;4244;4245;4267;4306;4389;4701;4703;4706</SQLITE_DISABLE_WARNINGS> |
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Changes to SQLite.Interop/props/sqlite3.vsprops.
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10 11 12 13 14 15 16 | <VisualStudioPropertySheet ProjectType="Visual C++" Version="8.00" Name="sqlite3" > <UserMacro Name="SQLITE_MANIFEST_VERSION" | | | | 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 | <VisualStudioPropertySheet ProjectType="Visual C++" Version="8.00" Name="sqlite3" > <UserMacro Name="SQLITE_MANIFEST_VERSION" Value="3.8.9.0" PerformEnvironmentSet="true" /> <UserMacro Name="SQLITE_RC_VERSION" Value="3,8,9,0" PerformEnvironmentSet="true" /> <UserMacro Name="SQLITE_COMMON_DEFINES" Value="_CRT_SECURE_NO_DEPRECATE;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_DEPRECATE;_CRT_NONSTDC_NO_WARNINGS;SQLITE_THREADSAFE=1;SQLITE_USE_URI=1;SQLITE_ENABLE_COLUMN_METADATA=1;SQLITE_ENABLE_STAT4=1;SQLITE_ENABLE_FTS3=1;SQLITE_ENABLE_LOAD_EXTENSION=1;SQLITE_ENABLE_RTREE=1;SQLITE_SOUNDEX=1;SQLITE_ENABLE_MEMORY_MANAGEMENT=1" PerformEnvironmentSet="true" /> |
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Changes to SQLite.Interop/src/core/sqlite3.c.
1 2 | /****************************************************************************** ** This file is an amalgamation of many separate C source files from SQLite | | | 1 2 3 4 5 6 7 8 9 10 | /****************************************************************************** ** This file is an amalgamation of many separate C source files from SQLite ** version 3.8.9. By combining all the individual C code files into this ** single large file, the entire code can be compiled as a single translation ** unit. This allows many compilers to do optimizations that would not be ** possible if the files were compiled separately. Performance improvements ** of 5% or more are commonly seen when SQLite is compiled as a single ** translation unit. ** ** This file is all you need to compile SQLite. To use SQLite in other |
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18 19 20 21 22 23 24 | ** separate file. This file contains only code for the core SQLite library. */ #define SQLITE_CORE 1 #define SQLITE_AMALGAMATION 1 #ifndef SQLITE_PRIVATE # define SQLITE_PRIVATE static #endif | < < < | 18 19 20 21 22 23 24 25 26 27 28 29 30 31 | ** separate file. This file contains only code for the core SQLite library. */ #define SQLITE_CORE 1 #define SQLITE_AMALGAMATION 1 #ifndef SQLITE_PRIVATE # define SQLITE_PRIVATE static #endif /************** Begin file sqliteInt.h ***************************************/ /* ** 2001 September 15 ** ** The author disclaims copyright to this source code. In place of ** a legal notice, here is a blessing: ** |
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86 87 88 89 90 91 92 93 94 95 96 97 98 99 | #endif /* defined(_MSC_VER) */ #endif /* _MSVC_H_ */ /************** End of msvc.h ************************************************/ /************** Continuing where we left off in sqliteInt.h ******************/ /* ** These #defines should enable >2GB file support on POSIX if the ** underlying operating system supports it. If the OS lacks ** large file support, or if the OS is windows, these should be no-ops. ** ** Ticket #2739: The _LARGEFILE_SOURCE macro must appear before any ** system #includes. Hence, this block of code must be the very first | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 | #endif /* defined(_MSC_VER) */ #endif /* _MSVC_H_ */ /************** End of msvc.h ************************************************/ /************** Continuing where we left off in sqliteInt.h ******************/ /* ** Special setup for VxWorks */ /************** Include vxworks.h in the middle of sqliteInt.h ***************/ /************** Begin file vxworks.h *****************************************/ /* ** 2015-03-02 ** ** The author disclaims copyright to this source code. In place of ** a legal notice, here is a blessing: ** ** May you do good and not evil. ** May you find forgiveness for yourself and forgive others. ** May you share freely, never taking more than you give. ** ****************************************************************************** ** ** This file contains code that is specific to Wind River's VxWorks */ #if defined(__RTP__) || defined(_WRS_KERNEL) /* This is VxWorks. Set up things specially for that OS */ #include <vxWorks.h> #include <pthread.h> /* amalgamator: dontcache */ #define OS_VXWORKS 1 #define SQLITE_OS_OTHER 0 #define SQLITE_HOMEGROWN_RECURSIVE_MUTEX 1 #define SQLITE_OMIT_LOAD_EXTENSION 1 #define SQLITE_ENABLE_LOCKING_STYLE 0 #define HAVE_UTIME 1 #else /* This is not VxWorks. */ #define OS_VXWORKS 0 #endif /* defined(_WRS_KERNEL) */ /************** End of vxworks.h *********************************************/ /************** Continuing where we left off in sqliteInt.h ******************/ /* ** These #defines should enable >2GB file support on POSIX if the ** underlying operating system supports it. If the OS lacks ** large file support, or if the OS is windows, these should be no-ops. ** ** Ticket #2739: The _LARGEFILE_SOURCE macro must appear before any ** system #includes. Hence, this block of code must be the very first |
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210 211 212 213 214 215 216 | */ #if 0 extern "C" { #endif /* | | < | > > > > > | 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 | */ #if 0 extern "C" { #endif /* ** Provide the ability to override linkage features of the interface. */ #ifndef SQLITE_EXTERN # define SQLITE_EXTERN extern #endif #ifndef SQLITE_API # define SQLITE_API #endif #ifndef SQLITE_CDECL # define SQLITE_CDECL #endif #ifndef SQLITE_STDCALL # define SQLITE_STDCALL #endif /* ** These no-op macros are used in front of interfaces to mark those ** interfaces as either deprecated or experimental. New applications ** should not use deprecated interfaces - they are supported for backwards ** compatibility only. Application writers should be aware that ** experimental interfaces are subject to change in point releases. |
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274 275 276 277 278 279 280 | ** string contains the date and time of the check-in (UTC) and an SHA1 ** hash of the entire source tree. ** ** See also: [sqlite3_libversion()], ** [sqlite3_libversion_number()], [sqlite3_sourceid()], ** [sqlite_version()] and [sqlite_source_id()]. */ | | | | | 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 | ** string contains the date and time of the check-in (UTC) and an SHA1 ** hash of the entire source tree. ** ** See also: [sqlite3_libversion()], ** [sqlite3_libversion_number()], [sqlite3_sourceid()], ** [sqlite_version()] and [sqlite_source_id()]. */ #define SQLITE_VERSION "3.8.9" #define SQLITE_VERSION_NUMBER 3008009 #define SQLITE_SOURCE_ID "2015-04-02 15:24:53 90701227085b8b8eb10a8eebe8d55f38b4778574" /* ** CAPI3REF: Run-Time Library Version Numbers ** KEYWORDS: sqlite3_version, sqlite3_sourceid ** ** These interfaces provide the same information as the [SQLITE_VERSION], ** [SQLITE_VERSION_NUMBER], and [SQLITE_SOURCE_ID] C preprocessor macros |
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309 310 311 312 313 314 315 | ** [SQLITE_VERSION_NUMBER]. ^The sqlite3_sourceid() function returns ** a pointer to a string constant whose value is the same as the ** [SQLITE_SOURCE_ID] C preprocessor macro. ** ** See also: [sqlite_version()] and [sqlite_source_id()]. */ SQLITE_API const char sqlite3_version[] = SQLITE_VERSION; | | | | | 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 | ** [SQLITE_VERSION_NUMBER]. ^The sqlite3_sourceid() function returns ** a pointer to a string constant whose value is the same as the ** [SQLITE_SOURCE_ID] C preprocessor macro. ** ** See also: [sqlite_version()] and [sqlite_source_id()]. */ SQLITE_API const char sqlite3_version[] = SQLITE_VERSION; SQLITE_API const char *SQLITE_STDCALL sqlite3_libversion(void); SQLITE_API const char *SQLITE_STDCALL sqlite3_sourceid(void); SQLITE_API int SQLITE_STDCALL sqlite3_libversion_number(void); /* ** CAPI3REF: Run-Time Library Compilation Options Diagnostics ** ** ^The sqlite3_compileoption_used() function returns 0 or 1 ** indicating whether the specified option was defined at ** compile time. ^The SQLITE_ prefix may be omitted from the |
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336 337 338 339 340 341 342 | ** and sqlite3_compileoption_get() may be omitted by specifying the ** [SQLITE_OMIT_COMPILEOPTION_DIAGS] option at compile time. ** ** See also: SQL functions [sqlite_compileoption_used()] and ** [sqlite_compileoption_get()] and the [compile_options pragma]. */ #ifndef SQLITE_OMIT_COMPILEOPTION_DIAGS | | | | 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 | ** and sqlite3_compileoption_get() may be omitted by specifying the ** [SQLITE_OMIT_COMPILEOPTION_DIAGS] option at compile time. ** ** See also: SQL functions [sqlite_compileoption_used()] and ** [sqlite_compileoption_get()] and the [compile_options pragma]. */ #ifndef SQLITE_OMIT_COMPILEOPTION_DIAGS SQLITE_API int SQLITE_STDCALL sqlite3_compileoption_used(const char *zOptName); SQLITE_API const char *SQLITE_STDCALL sqlite3_compileoption_get(int N); #endif /* ** CAPI3REF: Test To See If The Library Is Threadsafe ** ** ^The sqlite3_threadsafe() function returns zero if and only if ** SQLite was compiled with mutexing code omitted due to the |
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376 377 378 379 380 381 382 | ** sqlite3_threadsafe() function shows only the compile-time setting of ** thread safety, not any run-time changes to that setting made by ** sqlite3_config(). In other words, the return value from sqlite3_threadsafe() ** is unchanged by calls to sqlite3_config().)^ ** ** See the [threading mode] documentation for additional information. */ | | | 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 | ** sqlite3_threadsafe() function shows only the compile-time setting of ** thread safety, not any run-time changes to that setting made by ** sqlite3_config(). In other words, the return value from sqlite3_threadsafe() ** is unchanged by calls to sqlite3_config().)^ ** ** See the [threading mode] documentation for additional information. */ SQLITE_API int SQLITE_STDCALL sqlite3_threadsafe(void); /* ** CAPI3REF: Database Connection Handle ** KEYWORDS: {database connection} {database connections} ** ** Each open SQLite database is represented by a pointer to an instance of ** the opaque structure named "sqlite3". It is useful to think of an sqlite3 |
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472 473 474 475 476 477 478 | ** must be either a NULL ** pointer or an [sqlite3] object pointer obtained ** from [sqlite3_open()], [sqlite3_open16()], or ** [sqlite3_open_v2()], and not previously closed. ** ^Calling sqlite3_close() or sqlite3_close_v2() with a NULL pointer ** argument is a harmless no-op. */ | | | | 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 | ** must be either a NULL ** pointer or an [sqlite3] object pointer obtained ** from [sqlite3_open()], [sqlite3_open16()], or ** [sqlite3_open_v2()], and not previously closed. ** ^Calling sqlite3_close() or sqlite3_close_v2() with a NULL pointer ** argument is a harmless no-op. */ SQLITE_API int SQLITE_STDCALL sqlite3_close(sqlite3*); SQLITE_API int SQLITE_STDCALL sqlite3_close_v2(sqlite3*); /* ** The type for a callback function. ** This is legacy and deprecated. It is included for historical ** compatibility and is not documented. */ typedef int (*sqlite3_callback)(void*,int,char**, char**); |
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543 544 545 546 547 548 549 | ** is a valid and open [database connection]. ** <li> The application must not close the [database connection] specified by ** the 1st parameter to sqlite3_exec() while sqlite3_exec() is running. ** <li> The application must not modify the SQL statement text passed into ** the 2nd parameter of sqlite3_exec() while sqlite3_exec() is running. ** </ul> */ | | | 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 | ** is a valid and open [database connection]. ** <li> The application must not close the [database connection] specified by ** the 1st parameter to sqlite3_exec() while sqlite3_exec() is running. ** <li> The application must not modify the SQL statement text passed into ** the 2nd parameter of sqlite3_exec() while sqlite3_exec() is running. ** </ul> */ SQLITE_API int SQLITE_STDCALL sqlite3_exec( sqlite3*, /* An open database */ const char *sql, /* SQL to be evaluated */ int (*callback)(void*,int,char**,char**), /* Callback function */ void *, /* 1st argument to callback */ char **errmsg /* Error msg written here */ ); |
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923 924 925 926 927 928 929 930 931 932 933 934 | ** CAPI3REF: Standard File Control Opcodes ** KEYWORDS: {file control opcodes} {file control opcode} ** ** These integer constants are opcodes for the xFileControl method ** of the [sqlite3_io_methods] object and for the [sqlite3_file_control()] ** interface. ** ** The [SQLITE_FCNTL_LOCKSTATE] opcode is used for debugging. This ** opcode causes the xFileControl method to write the current state of ** the lock (one of [SQLITE_LOCK_NONE], [SQLITE_LOCK_SHARED], ** [SQLITE_LOCK_RESERVED], [SQLITE_LOCK_PENDING], or [SQLITE_LOCK_EXCLUSIVE]) ** into an integer that the pArg argument points to. This capability | > > | | | | 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 | ** CAPI3REF: Standard File Control Opcodes ** KEYWORDS: {file control opcodes} {file control opcode} ** ** These integer constants are opcodes for the xFileControl method ** of the [sqlite3_io_methods] object and for the [sqlite3_file_control()] ** interface. ** ** <ul> ** <li>[[SQLITE_FCNTL_LOCKSTATE]] ** The [SQLITE_FCNTL_LOCKSTATE] opcode is used for debugging. This ** opcode causes the xFileControl method to write the current state of ** the lock (one of [SQLITE_LOCK_NONE], [SQLITE_LOCK_SHARED], ** [SQLITE_LOCK_RESERVED], [SQLITE_LOCK_PENDING], or [SQLITE_LOCK_EXCLUSIVE]) ** into an integer that the pArg argument points to. This capability ** is used during testing and is only available when the SQLITE_TEST ** compile-time option is used. ** ** <li>[[SQLITE_FCNTL_SIZE_HINT]] ** The [SQLITE_FCNTL_SIZE_HINT] opcode is used by SQLite to give the VFS ** layer a hint of how large the database file will grow to be during the ** current transaction. This hint is not guaranteed to be accurate but it ** is often close. The underlying VFS might choose to preallocate database ** file space based on this hint in order to help writes to the database ** file run faster. |
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1055 1056 1057 1058 1059 1060 1061 | ** of the char** argument point to a string obtained from [sqlite3_mprintf()] ** or the equivalent and that string will become the result of the pragma or ** the error message if the pragma fails. ^If the ** [SQLITE_FCNTL_PRAGMA] file control returns [SQLITE_NOTFOUND], then normal ** [PRAGMA] processing continues. ^If the [SQLITE_FCNTL_PRAGMA] ** file control returns [SQLITE_OK], then the parser assumes that the ** VFS has handled the PRAGMA itself and the parser generates a no-op | > > | | 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 | ** of the char** argument point to a string obtained from [sqlite3_mprintf()] ** or the equivalent and that string will become the result of the pragma or ** the error message if the pragma fails. ^If the ** [SQLITE_FCNTL_PRAGMA] file control returns [SQLITE_NOTFOUND], then normal ** [PRAGMA] processing continues. ^If the [SQLITE_FCNTL_PRAGMA] ** file control returns [SQLITE_OK], then the parser assumes that the ** VFS has handled the PRAGMA itself and the parser generates a no-op ** prepared statement if result string is NULL, or that returns a copy ** of the result string if the string is non-NULL. ** ^If the [SQLITE_FCNTL_PRAGMA] file control returns ** any result code other than [SQLITE_OK] or [SQLITE_NOTFOUND], that means ** that the VFS encountered an error while handling the [PRAGMA] and the ** compilation of the PRAGMA fails with an error. ^The [SQLITE_FCNTL_PRAGMA] ** file control occurs at the beginning of pragma statement analysis and so ** it is able to override built-in [PRAGMA] statements. ** ** <li>[[SQLITE_FCNTL_BUSYHANDLER]] |
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1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 | ** ** <li>[[SQLITE_FCNTL_WIN32_SET_HANDLE]] ** The [SQLITE_FCNTL_WIN32_SET_HANDLE] opcode is used for debugging. This ** opcode causes the xFileControl method to swap the file handle with the one ** pointed to by the pArg argument. This capability is used during testing ** and only needs to be supported when SQLITE_TEST is defined. ** ** </ul> */ #define SQLITE_FCNTL_LOCKSTATE 1 | > > > > > > > | | | > > > > > > > | 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 | ** ** <li>[[SQLITE_FCNTL_WIN32_SET_HANDLE]] ** The [SQLITE_FCNTL_WIN32_SET_HANDLE] opcode is used for debugging. This ** opcode causes the xFileControl method to swap the file handle with the one ** pointed to by the pArg argument. This capability is used during testing ** and only needs to be supported when SQLITE_TEST is defined. ** ** <li>[[SQLITE_FCNTL_WAL_BLOCK]] ** The [SQLITE_FCNTL_WAL_BLOCK] is a signal to the VFS layer that it might ** be advantageous to block on the next WAL lock if the lock is not immediately ** available. The WAL subsystem issues this signal during rare ** circumstances in order to fix a problem with priority inversion. ** Applications should <em>not</em> use this file-control. ** ** </ul> */ #define SQLITE_FCNTL_LOCKSTATE 1 #define SQLITE_FCNTL_GET_LOCKPROXYFILE 2 #define SQLITE_FCNTL_SET_LOCKPROXYFILE 3 #define SQLITE_FCNTL_LAST_ERRNO 4 #define SQLITE_FCNTL_SIZE_HINT 5 #define SQLITE_FCNTL_CHUNK_SIZE 6 #define SQLITE_FCNTL_FILE_POINTER 7 #define SQLITE_FCNTL_SYNC_OMITTED 8 #define SQLITE_FCNTL_WIN32_AV_RETRY 9 #define SQLITE_FCNTL_PERSIST_WAL 10 #define SQLITE_FCNTL_OVERWRITE 11 #define SQLITE_FCNTL_VFSNAME 12 #define SQLITE_FCNTL_POWERSAFE_OVERWRITE 13 #define SQLITE_FCNTL_PRAGMA 14 #define SQLITE_FCNTL_BUSYHANDLER 15 #define SQLITE_FCNTL_TEMPFILENAME 16 #define SQLITE_FCNTL_MMAP_SIZE 18 #define SQLITE_FCNTL_TRACE 19 #define SQLITE_FCNTL_HAS_MOVED 20 #define SQLITE_FCNTL_SYNC 21 #define SQLITE_FCNTL_COMMIT_PHASETWO 22 #define SQLITE_FCNTL_WIN32_SET_HANDLE 23 #define SQLITE_FCNTL_WAL_BLOCK 24 /* deprecated names */ #define SQLITE_GET_LOCKPROXYFILE SQLITE_FCNTL_GET_LOCKPROXYFILE #define SQLITE_SET_LOCKPROXYFILE SQLITE_FCNTL_SET_LOCKPROXYFILE #define SQLITE_LAST_ERRNO SQLITE_FCNTL_LAST_ERRNO /* ** CAPI3REF: Mutex Handle ** ** The mutex module within SQLite defines [sqlite3_mutex] to be an ** abstract type for a mutex object. The SQLite core never looks ** at the internal representation of an [sqlite3_mutex]. It only |
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1485 1486 1487 1488 1489 1490 1491 | ** (using the [SQLITE_OS_OTHER=1] compile-time ** option) the application must supply a suitable implementation for ** sqlite3_os_init() and sqlite3_os_end(). An application-supplied ** implementation of sqlite3_os_init() or sqlite3_os_end() ** must return [SQLITE_OK] on success and some other [error code] upon ** failure. */ | | | | | | 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 | ** (using the [SQLITE_OS_OTHER=1] compile-time ** option) the application must supply a suitable implementation for ** sqlite3_os_init() and sqlite3_os_end(). An application-supplied ** implementation of sqlite3_os_init() or sqlite3_os_end() ** must return [SQLITE_OK] on success and some other [error code] upon ** failure. */ SQLITE_API int SQLITE_STDCALL sqlite3_initialize(void); SQLITE_API int SQLITE_STDCALL sqlite3_shutdown(void); SQLITE_API int SQLITE_STDCALL sqlite3_os_init(void); SQLITE_API int SQLITE_STDCALL sqlite3_os_end(void); /* ** CAPI3REF: Configuring The SQLite Library ** ** The sqlite3_config() interface is used to make global configuration ** changes to SQLite in order to tune SQLite to the specific needs of ** the application. The default configuration is recommended for most |
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1519 1520 1521 1522 1523 1524 1525 | ** vary depending on the [configuration option] ** in the first argument. ** ** ^When a configuration option is set, sqlite3_config() returns [SQLITE_OK]. ** ^If the option is unknown or SQLite is unable to set the option ** then this routine returns a non-zero [error code]. */ | | | | 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 | ** vary depending on the [configuration option] ** in the first argument. ** ** ^When a configuration option is set, sqlite3_config() returns [SQLITE_OK]. ** ^If the option is unknown or SQLite is unable to set the option ** then this routine returns a non-zero [error code]. */ SQLITE_API int SQLITE_CDECL sqlite3_config(int, ...); /* ** CAPI3REF: Configure database connections ** ** The sqlite3_db_config() interface is used to make configuration ** changes to a [database connection]. The interface is similar to ** [sqlite3_config()] except that the changes apply to a single ** [database connection] (specified in the first argument). ** ** The second argument to sqlite3_db_config(D,V,...) is the ** [SQLITE_DBCONFIG_LOOKASIDE | configuration verb] - an integer code ** that indicates what aspect of the [database connection] is being configured. ** Subsequent arguments vary depending on the configuration verb. ** ** ^Calls to sqlite3_db_config() return SQLITE_OK if and only if ** the call is considered successful. */ SQLITE_API int SQLITE_CDECL sqlite3_db_config(sqlite3*, int op, ...); /* ** CAPI3REF: Memory Allocation Routines ** ** An instance of this object defines the interface between SQLite ** and low-level memory allocation routines. ** |
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1697 1698 1699 1700 1701 1702 1703 | ** interpreted as a boolean, which enables or disables the collection of ** memory allocation statistics. ^(When memory allocation statistics are ** disabled, the following SQLite interfaces become non-operational: ** <ul> ** <li> [sqlite3_memory_used()] ** <li> [sqlite3_memory_highwater()] ** <li> [sqlite3_soft_heap_limit64()] | | | 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 | ** interpreted as a boolean, which enables or disables the collection of ** memory allocation statistics. ^(When memory allocation statistics are ** disabled, the following SQLite interfaces become non-operational: ** <ul> ** <li> [sqlite3_memory_used()] ** <li> [sqlite3_memory_highwater()] ** <li> [sqlite3_soft_heap_limit64()] ** <li> [sqlite3_status64()] ** </ul>)^ ** ^Memory allocation statistics are enabled by default unless SQLite is ** compiled with [SQLITE_DEFAULT_MEMSTATUS]=0 in which case memory ** allocation statistics are disabled by default. ** </dd> ** ** [[SQLITE_CONFIG_SCRATCH]] <dt>SQLITE_CONFIG_SCRATCH</dt> |
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1908 1909 1910 1911 1912 1913 1914 | ** ** [[SQLITE_CONFIG_WIN32_HEAPSIZE]] ** <dt>SQLITE_CONFIG_WIN32_HEAPSIZE ** <dd>^The SQLITE_CONFIG_WIN32_HEAPSIZE option is only available if SQLite is ** compiled for Windows with the [SQLITE_WIN32_MALLOC] pre-processor macro ** defined. ^SQLITE_CONFIG_WIN32_HEAPSIZE takes a 32-bit unsigned integer value ** that specifies the maximum size of the created heap. | < | 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 | ** ** [[SQLITE_CONFIG_WIN32_HEAPSIZE]] ** <dt>SQLITE_CONFIG_WIN32_HEAPSIZE ** <dd>^The SQLITE_CONFIG_WIN32_HEAPSIZE option is only available if SQLite is ** compiled for Windows with the [SQLITE_WIN32_MALLOC] pre-processor macro ** defined. ^SQLITE_CONFIG_WIN32_HEAPSIZE takes a 32-bit unsigned integer value ** that specifies the maximum size of the created heap. ** ** [[SQLITE_CONFIG_PCACHE_HDRSZ]] ** <dt>SQLITE_CONFIG_PCACHE_HDRSZ ** <dd>^The SQLITE_CONFIG_PCACHE_HDRSZ option takes a single parameter which ** is a pointer to an integer and writes into that integer the number of extra ** bytes per page required for each page in [SQLITE_CONFIG_PAGECACHE]. ** The amount of extra space required can change depending on the compiler, |
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2026 2027 2028 2029 2030 2031 2032 | /* ** CAPI3REF: Enable Or Disable Extended Result Codes ** ** ^The sqlite3_extended_result_codes() routine enables or disables the ** [extended result codes] feature of SQLite. ^The extended result ** codes are disabled by default for historical compatibility. */ | | | 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 2092 2093 2094 2095 2096 | /* ** CAPI3REF: Enable Or Disable Extended Result Codes ** ** ^The sqlite3_extended_result_codes() routine enables or disables the ** [extended result codes] feature of SQLite. ^The extended result ** codes are disabled by default for historical compatibility. */ SQLITE_API int SQLITE_STDCALL sqlite3_extended_result_codes(sqlite3*, int onoff); /* ** CAPI3REF: Last Insert Rowid ** ** ^Each entry in most SQLite tables (except for [WITHOUT ROWID] tables) ** has a unique 64-bit signed ** integer key called the [ROWID | "rowid"]. ^The rowid is always available |
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2077 2078 2079 2080 2081 2082 2083 | ** If a separate thread performs a new [INSERT] on the same ** database connection while the [sqlite3_last_insert_rowid()] ** function is running and thus changes the last insert [rowid], ** then the value returned by [sqlite3_last_insert_rowid()] is ** unpredictable and might not equal either the old or the new ** last insert [rowid]. */ | | | 2133 2134 2135 2136 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 | ** If a separate thread performs a new [INSERT] on the same ** database connection while the [sqlite3_last_insert_rowid()] ** function is running and thus changes the last insert [rowid], ** then the value returned by [sqlite3_last_insert_rowid()] is ** unpredictable and might not equal either the old or the new ** last insert [rowid]. */ SQLITE_API sqlite3_int64 SQLITE_STDCALL sqlite3_last_insert_rowid(sqlite3*); /* ** CAPI3REF: Count The Number Of Rows Modified ** ** ^This function returns the number of rows modified, inserted or ** deleted by the most recently completed INSERT, UPDATE or DELETE ** statement on the database connection specified by the only parameter. |
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2129 2130 2131 2132 2133 2134 2135 | ** See also the [sqlite3_total_changes()] interface, the ** [count_changes pragma], and the [changes() SQL function]. ** ** If a separate thread makes changes on the same database connection ** while [sqlite3_changes()] is running then the value returned ** is unpredictable and not meaningful. */ | | | 2185 2186 2187 2188 2189 2190 2191 2192 2193 2194 2195 2196 2197 2198 2199 | ** See also the [sqlite3_total_changes()] interface, the ** [count_changes pragma], and the [changes() SQL function]. ** ** If a separate thread makes changes on the same database connection ** while [sqlite3_changes()] is running then the value returned ** is unpredictable and not meaningful. */ SQLITE_API int SQLITE_STDCALL sqlite3_changes(sqlite3*); /* ** CAPI3REF: Total Number Of Rows Modified ** ** ^This function returns the total number of rows inserted, modified or ** deleted by all [INSERT], [UPDATE] or [DELETE] statements completed ** since the database connection was opened, including those executed as |
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2152 2153 2154 2155 2156 2157 2158 | ** See also the [sqlite3_changes()] interface, the ** [count_changes pragma], and the [total_changes() SQL function]. ** ** If a separate thread makes changes on the same database connection ** while [sqlite3_total_changes()] is running then the value ** returned is unpredictable and not meaningful. */ | | | 2208 2209 2210 2211 2212 2213 2214 2215 2216 2217 2218 2219 2220 2221 2222 | ** See also the [sqlite3_changes()] interface, the ** [count_changes pragma], and the [total_changes() SQL function]. ** ** If a separate thread makes changes on the same database connection ** while [sqlite3_total_changes()] is running then the value ** returned is unpredictable and not meaningful. */ SQLITE_API int SQLITE_STDCALL sqlite3_total_changes(sqlite3*); /* ** CAPI3REF: Interrupt A Long-Running Query ** ** ^This function causes any pending database operation to abort and ** return at its earliest opportunity. This routine is typically ** called in response to a user action such as pressing "Cancel" |
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2191 2192 2193 2194 2195 2196 2197 | ** ^A call to sqlite3_interrupt(D) that occurs when there are no running ** SQL statements is a no-op and has no effect on SQL statements ** that are started after the sqlite3_interrupt() call returns. ** ** If the database connection closes while [sqlite3_interrupt()] ** is running then bad things will likely happen. */ | | | 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 | ** ^A call to sqlite3_interrupt(D) that occurs when there are no running ** SQL statements is a no-op and has no effect on SQL statements ** that are started after the sqlite3_interrupt() call returns. ** ** If the database connection closes while [sqlite3_interrupt()] ** is running then bad things will likely happen. */ SQLITE_API void SQLITE_STDCALL sqlite3_interrupt(sqlite3*); /* ** CAPI3REF: Determine If An SQL Statement Is Complete ** ** These routines are useful during command-line input to determine if the ** currently entered text seems to form a complete SQL statement or ** if additional input is needed before sending the text into |
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2226 2227 2228 2229 2230 2231 2232 | ** ** The input to [sqlite3_complete()] must be a zero-terminated ** UTF-8 string. ** ** The input to [sqlite3_complete16()] must be a zero-terminated ** UTF-16 string in native byte order. */ | | | | 2282 2283 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 | ** ** The input to [sqlite3_complete()] must be a zero-terminated ** UTF-8 string. ** ** The input to [sqlite3_complete16()] must be a zero-terminated ** UTF-16 string in native byte order. */ SQLITE_API int SQLITE_STDCALL sqlite3_complete(const char *sql); SQLITE_API int SQLITE_STDCALL sqlite3_complete16(const void *sql); /* ** CAPI3REF: Register A Callback To Handle SQLITE_BUSY Errors ** KEYWORDS: {busy-handler callback} {busy handler} ** ** ^The sqlite3_busy_handler(D,X,P) routine sets a callback function X ** that might be invoked with argument P whenever |
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2287 2288 2289 2290 2291 2292 2293 | ** database connection that invoked the busy handler. In other words, ** the busy handler is not reentrant. Any such actions ** result in undefined behavior. ** ** A busy handler must not close the database connection ** or [prepared statement] that invoked the busy handler. */ | | | 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 | ** database connection that invoked the busy handler. In other words, ** the busy handler is not reentrant. Any such actions ** result in undefined behavior. ** ** A busy handler must not close the database connection ** or [prepared statement] that invoked the busy handler. */ SQLITE_API int SQLITE_STDCALL sqlite3_busy_handler(sqlite3*, int(*)(void*,int), void*); /* ** CAPI3REF: Set A Busy Timeout ** ** ^This routine sets a [sqlite3_busy_handler | busy handler] that sleeps ** for a specified amount of time when a table is locked. ^The handler ** will sleep multiple times until at least "ms" milliseconds of sleeping |
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2309 2310 2311 2312 2313 2314 2315 | ** ^(There can only be a single busy handler for a particular ** [database connection] at any given moment. If another busy handler ** was defined (using [sqlite3_busy_handler()]) prior to calling ** this routine, that other busy handler is cleared.)^ ** ** See also: [PRAGMA busy_timeout] */ | | | 2365 2366 2367 2368 2369 2370 2371 2372 2373 2374 2375 2376 2377 2378 2379 | ** ^(There can only be a single busy handler for a particular ** [database connection] at any given moment. If another busy handler ** was defined (using [sqlite3_busy_handler()]) prior to calling ** this routine, that other busy handler is cleared.)^ ** ** See also: [PRAGMA busy_timeout] */ SQLITE_API int SQLITE_STDCALL sqlite3_busy_timeout(sqlite3*, int ms); /* ** CAPI3REF: Convenience Routines For Running Queries ** ** This is a legacy interface that is preserved for backwards compatibility. ** Use of this interface is not recommended. ** |
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2383 2384 2385 2386 2387 2388 2389 | ** [sqlite3_exec()]. The sqlite3_get_table() routine does not have access ** to any internal data structures of SQLite. It uses only the public ** interface defined here. As a consequence, errors that occur in the ** wrapper layer outside of the internal [sqlite3_exec()] call are not ** reflected in subsequent calls to [sqlite3_errcode()] or ** [sqlite3_errmsg()]. */ | | | > > > > | 2439 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 2460 2461 2462 2463 2464 2465 2466 2467 2468 2469 2470 2471 | ** [sqlite3_exec()]. The sqlite3_get_table() routine does not have access ** to any internal data structures of SQLite. It uses only the public ** interface defined here. As a consequence, errors that occur in the ** wrapper layer outside of the internal [sqlite3_exec()] call are not ** reflected in subsequent calls to [sqlite3_errcode()] or ** [sqlite3_errmsg()]. */ SQLITE_API int SQLITE_STDCALL sqlite3_get_table( sqlite3 *db, /* An open database */ const char *zSql, /* SQL to be evaluated */ char ***pazResult, /* Results of the query */ int *pnRow, /* Number of result rows written here */ int *pnColumn, /* Number of result columns written here */ char **pzErrmsg /* Error msg written here */ ); SQLITE_API void SQLITE_STDCALL sqlite3_free_table(char **result); /* ** CAPI3REF: Formatted String Printing Functions ** ** These routines are work-alikes of the "printf()" family of functions ** from the standard C library. ** These routines understand most of the common K&R formatting options, ** plus some additional non-standard formats, detailed below. ** Note that some of the more obscure formatting options from recent ** C-library standards are omitted from this implementation. ** ** ^The sqlite3_mprintf() and sqlite3_vmprintf() routines write their ** results into memory obtained from [sqlite3_malloc()]. ** The strings returned by these two routines should be ** released by [sqlite3_free()]. ^Both routines return a ** NULL pointer if [sqlite3_malloc()] is unable to allocate enough ** memory to hold the resulting string. |
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2430 2431 2432 2433 2434 2435 2436 | ** written will be n-1 characters. ** ** ^The sqlite3_vsnprintf() routine is a varargs version of sqlite3_snprintf(). ** ** These routines all implement some additional formatting ** options that are useful for constructing SQL statements. ** All of the usual printf() formatting options apply. In addition, there | | | 2490 2491 2492 2493 2494 2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 | ** written will be n-1 characters. ** ** ^The sqlite3_vsnprintf() routine is a varargs version of sqlite3_snprintf(). ** ** These routines all implement some additional formatting ** options that are useful for constructing SQL statements. ** All of the usual printf() formatting options apply. In addition, there ** is are "%q", "%Q", "%w" and "%z" options. ** ** ^(The %q option works like %s in that it substitutes a nul-terminated ** string from the argument list. But %q also doubles every '\'' character. ** %q is designed for use inside a string literal.)^ By doubling each '\'' ** character it escapes that character and allows it to be inserted into ** the string. ** |
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2482 2483 2484 2485 2486 2487 2488 2489 2490 2491 2492 2493 | ** char *zSQL = sqlite3_mprintf("INSERT INTO table VALUES(%Q)", zText); ** sqlite3_exec(db, zSQL, 0, 0, 0); ** sqlite3_free(zSQL); ** </pre></blockquote> ** ** The code above will render a correct SQL statement in the zSQL ** variable even if the zText variable is a NULL pointer. ** ** ^(The "%z" formatting option works like "%s" but with the ** addition that after the string has been read and copied into ** the result, [sqlite3_free()] is called on the input string.)^ */ | > > > > > > | | | | | 2542 2543 2544 2545 2546 2547 2548 2549 2550 2551 2552 2553 2554 2555 2556 2557 2558 2559 2560 2561 2562 2563 2564 2565 2566 2567 2568 2569 2570 | ** char *zSQL = sqlite3_mprintf("INSERT INTO table VALUES(%Q)", zText); ** sqlite3_exec(db, zSQL, 0, 0, 0); ** sqlite3_free(zSQL); ** </pre></blockquote> ** ** The code above will render a correct SQL statement in the zSQL ** variable even if the zText variable is a NULL pointer. ** ** ^(The "%w" formatting option is like "%q" except that it expects to ** be contained within double-quotes instead of single quotes, and it ** escapes the double-quote character instead of the single-quote ** character.)^ The "%w" formatting option is intended for safely inserting ** table and column names into a constructed SQL statement. ** ** ^(The "%z" formatting option works like "%s" but with the ** addition that after the string has been read and copied into ** the result, [sqlite3_free()] is called on the input string.)^ */ SQLITE_API char *SQLITE_CDECL sqlite3_mprintf(const char*,...); SQLITE_API char *SQLITE_STDCALL sqlite3_vmprintf(const char*, va_list); SQLITE_API char *SQLITE_CDECL sqlite3_snprintf(int,char*,const char*, ...); SQLITE_API char *SQLITE_STDCALL sqlite3_vsnprintf(int,char*,const char*, va_list); /* ** CAPI3REF: Memory Allocation Subsystem ** ** The SQLite core uses these three routines for all of its own ** internal memory allocation needs. "Core" in the previous sentence ** does not include operating-system specific VFS implementation. The |
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2580 2581 2582 2583 2584 2585 2586 | ** invocation of [sqlite3_malloc()] or [sqlite3_realloc()] that have ** not yet been released. ** ** The application must not read or write any part of ** a block of memory after it has been released using ** [sqlite3_free()] or [sqlite3_realloc()]. */ | | | | | | | | 2646 2647 2648 2649 2650 2651 2652 2653 2654 2655 2656 2657 2658 2659 2660 2661 2662 2663 2664 2665 | ** invocation of [sqlite3_malloc()] or [sqlite3_realloc()] that have ** not yet been released. ** ** The application must not read or write any part of ** a block of memory after it has been released using ** [sqlite3_free()] or [sqlite3_realloc()]. */ SQLITE_API void *SQLITE_STDCALL sqlite3_malloc(int); SQLITE_API void *SQLITE_STDCALL sqlite3_malloc64(sqlite3_uint64); SQLITE_API void *SQLITE_STDCALL sqlite3_realloc(void*, int); SQLITE_API void *SQLITE_STDCALL sqlite3_realloc64(void*, sqlite3_uint64); SQLITE_API void SQLITE_STDCALL sqlite3_free(void*); SQLITE_API sqlite3_uint64 SQLITE_STDCALL sqlite3_msize(void*); /* ** CAPI3REF: Memory Allocator Statistics ** ** SQLite provides these two interfaces for reporting on the status ** of the [sqlite3_malloc()], [sqlite3_free()], and [sqlite3_realloc()] ** routines, which form the built-in memory allocation subsystem. |
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2610 2611 2612 2613 2614 2615 2616 | ** ** ^The memory high-water mark is reset to the current value of ** [sqlite3_memory_used()] if and only if the parameter to ** [sqlite3_memory_highwater()] is true. ^The value returned ** by [sqlite3_memory_highwater(1)] is the high-water mark ** prior to the reset. */ | | | | 2676 2677 2678 2679 2680 2681 2682 2683 2684 2685 2686 2687 2688 2689 2690 2691 | ** ** ^The memory high-water mark is reset to the current value of ** [sqlite3_memory_used()] if and only if the parameter to ** [sqlite3_memory_highwater()] is true. ^The value returned ** by [sqlite3_memory_highwater(1)] is the high-water mark ** prior to the reset. */ SQLITE_API sqlite3_int64 SQLITE_STDCALL sqlite3_memory_used(void); SQLITE_API sqlite3_int64 SQLITE_STDCALL sqlite3_memory_highwater(int resetFlag); /* ** CAPI3REF: Pseudo-Random Number Generator ** ** SQLite contains a high-quality pseudo-random number generator (PRNG) used to ** select random [ROWID | ROWIDs] when inserting new records into a table that ** already uses the largest possible [ROWID]. The PRNG is also used for |
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2634 2635 2636 2637 2638 2639 2640 | ** seeded using randomness obtained from the xRandomness method of ** the default [sqlite3_vfs] object. ** ^If the previous call to this routine had an N of 1 or more and a ** non-NULL P then the pseudo-randomness is generated ** internally and without recourse to the [sqlite3_vfs] xRandomness ** method. */ | | | 2700 2701 2702 2703 2704 2705 2706 2707 2708 2709 2710 2711 2712 2713 2714 | ** seeded using randomness obtained from the xRandomness method of ** the default [sqlite3_vfs] object. ** ^If the previous call to this routine had an N of 1 or more and a ** non-NULL P then the pseudo-randomness is generated ** internally and without recourse to the [sqlite3_vfs] xRandomness ** method. */ SQLITE_API void SQLITE_STDCALL sqlite3_randomness(int N, void *P); /* ** CAPI3REF: Compile-Time Authorization Callbacks ** ** ^This routine registers an authorizer callback with a particular ** [database connection], supplied in the first argument. ** ^The authorizer callback is invoked as SQL statements are being compiled |
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2716 2717 2718 2719 2720 2721 2722 | ** ** ^Note that the authorizer callback is invoked only during ** [sqlite3_prepare()] or its variants. Authorization is not ** performed during statement evaluation in [sqlite3_step()], unless ** as stated in the previous paragraph, sqlite3_step() invokes ** sqlite3_prepare_v2() to reprepare a statement after a schema change. */ | | | 2782 2783 2784 2785 2786 2787 2788 2789 2790 2791 2792 2793 2794 2795 2796 | ** ** ^Note that the authorizer callback is invoked only during ** [sqlite3_prepare()] or its variants. Authorization is not ** performed during statement evaluation in [sqlite3_step()], unless ** as stated in the previous paragraph, sqlite3_step() invokes ** sqlite3_prepare_v2() to reprepare a statement after a schema change. */ SQLITE_API int SQLITE_STDCALL sqlite3_set_authorizer( sqlite3*, int (*xAuth)(void*,int,const char*,const char*,const char*,const char*), void *pUserData ); /* ** CAPI3REF: Authorizer Return Codes |
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2820 2821 2822 2823 2824 2825 2826 | ** time is in units of nanoseconds, however the current implementation ** is only capable of millisecond resolution so the six least significant ** digits in the time are meaningless. Future versions of SQLite ** might provide greater resolution on the profiler callback. The ** sqlite3_profile() function is considered experimental and is ** subject to change in future versions of SQLite. */ | | | | 2886 2887 2888 2889 2890 2891 2892 2893 2894 2895 2896 2897 2898 2899 2900 2901 | ** time is in units of nanoseconds, however the current implementation ** is only capable of millisecond resolution so the six least significant ** digits in the time are meaningless. Future versions of SQLite ** might provide greater resolution on the profiler callback. The ** sqlite3_profile() function is considered experimental and is ** subject to change in future versions of SQLite. */ SQLITE_API void *SQLITE_STDCALL sqlite3_trace(sqlite3*, void(*xTrace)(void*,const char*), void*); SQLITE_API SQLITE_EXPERIMENTAL void *SQLITE_STDCALL sqlite3_profile(sqlite3*, void(*xProfile)(void*,const char*,sqlite3_uint64), void*); /* ** CAPI3REF: Query Progress Callbacks ** ** ^The sqlite3_progress_handler(D,N,X,P) interface causes the callback ** function X to be invoked periodically during long running calls to |
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2855 2856 2857 2858 2859 2860 2861 | ** ** The progress handler callback must not do anything that will modify ** the database connection that invoked the progress handler. ** Note that [sqlite3_prepare_v2()] and [sqlite3_step()] both modify their ** database connections for the meaning of "modify" in this paragraph. ** */ | | | 2921 2922 2923 2924 2925 2926 2927 2928 2929 2930 2931 2932 2933 2934 2935 | ** ** The progress handler callback must not do anything that will modify ** the database connection that invoked the progress handler. ** Note that [sqlite3_prepare_v2()] and [sqlite3_step()] both modify their ** database connections for the meaning of "modify" in this paragraph. ** */ SQLITE_API void SQLITE_STDCALL sqlite3_progress_handler(sqlite3*, int, int(*)(void*), void*); /* ** CAPI3REF: Opening A New Database Connection ** ** ^These routines open an SQLite database file as specified by the ** filename argument. ^The filename argument is interpreted as UTF-8 for ** sqlite3_open() and sqlite3_open_v2() and as UTF-16 in the native byte |
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3083 3084 3085 3086 3087 3088 3089 | ** ** <b>Note to Windows Runtime users:</b> The temporary directory must be set ** prior to calling sqlite3_open() or sqlite3_open_v2(). Otherwise, various ** features that require the use of temporary files may fail. ** ** See also: [sqlite3_temp_directory] */ | | | | | 3149 3150 3151 3152 3153 3154 3155 3156 3157 3158 3159 3160 3161 3162 3163 3164 3165 3166 3167 3168 3169 3170 3171 | ** ** <b>Note to Windows Runtime users:</b> The temporary directory must be set ** prior to calling sqlite3_open() or sqlite3_open_v2(). Otherwise, various ** features that require the use of temporary files may fail. ** ** See also: [sqlite3_temp_directory] */ SQLITE_API int SQLITE_STDCALL sqlite3_open( const char *filename, /* Database filename (UTF-8) */ sqlite3 **ppDb /* OUT: SQLite db handle */ ); SQLITE_API int SQLITE_STDCALL sqlite3_open16( const void *filename, /* Database filename (UTF-16) */ sqlite3 **ppDb /* OUT: SQLite db handle */ ); SQLITE_API int SQLITE_STDCALL sqlite3_open_v2( const char *filename, /* Database filename (UTF-8) */ sqlite3 **ppDb, /* OUT: SQLite db handle */ int flags, /* Flags */ const char *zVfs /* Name of VFS module to use */ ); /* |
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3137 3138 3139 3140 3141 3142 3143 | ** ** If F is a NULL pointer, then sqlite3_uri_parameter(F,P) returns NULL and ** sqlite3_uri_boolean(F,P,B) returns B. If F is not a NULL pointer and ** is not a database file pathname pointer that SQLite passed into the xOpen ** VFS method, then the behavior of this routine is undefined and probably ** undesirable. */ | | | | > | | | | > | | 3203 3204 3205 3206 3207 3208 3209 3210 3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 3222 3223 3224 3225 3226 3227 3228 3229 3230 3231 | ** ** If F is a NULL pointer, then sqlite3_uri_parameter(F,P) returns NULL and ** sqlite3_uri_boolean(F,P,B) returns B. If F is not a NULL pointer and ** is not a database file pathname pointer that SQLite passed into the xOpen ** VFS method, then the behavior of this routine is undefined and probably ** undesirable. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_uri_parameter(const char *zFilename, const char *zParam); SQLITE_API int SQLITE_STDCALL sqlite3_uri_boolean(const char *zFile, const char *zParam, int bDefault); SQLITE_API sqlite3_int64 SQLITE_STDCALL sqlite3_uri_int64(const char*, const char*, sqlite3_int64); /* ** CAPI3REF: Error Codes And Messages ** ** ^If the most recent sqlite3_* API call associated with ** [database connection] D failed, then the sqlite3_errcode(D) interface ** returns the numeric [result code] or [extended result code] for that ** API call. ** If the most recent API call was successful, ** then the return value from sqlite3_errcode() is undefined. ** ^The sqlite3_extended_errcode() ** interface is the same except that it always returns the ** [extended result code] even when extended result codes are ** disabled. ** ** ^The sqlite3_errmsg() and sqlite3_errmsg16() return English-language ** text that describes the error, as either UTF-8 or UTF-16 respectively. ** ^(Memory to hold the error message string is managed internally. |
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3180 3181 3182 3183 3184 3185 3186 | ** to use D and invoking [sqlite3_mutex_leave]([sqlite3_db_mutex](D)) after ** all calls to the interfaces listed here are completed. ** ** If an interface fails with SQLITE_MISUSE, that means the interface ** was invoked incorrectly by the application. In that case, the ** error code and message may or may not be set. */ | | | | | | | 3248 3249 3250 3251 3252 3253 3254 3255 3256 3257 3258 3259 3260 3261 3262 3263 3264 3265 3266 | ** to use D and invoking [sqlite3_mutex_leave]([sqlite3_db_mutex](D)) after ** all calls to the interfaces listed here are completed. ** ** If an interface fails with SQLITE_MISUSE, that means the interface ** was invoked incorrectly by the application. In that case, the ** error code and message may or may not be set. */ SQLITE_API int SQLITE_STDCALL sqlite3_errcode(sqlite3 *db); SQLITE_API int SQLITE_STDCALL sqlite3_extended_errcode(sqlite3 *db); SQLITE_API const char *SQLITE_STDCALL sqlite3_errmsg(sqlite3*); SQLITE_API const void *SQLITE_STDCALL sqlite3_errmsg16(sqlite3*); SQLITE_API const char *SQLITE_STDCALL sqlite3_errstr(int); /* ** CAPI3REF: SQL Statement Object ** KEYWORDS: {prepared statement} {prepared statements} ** ** An instance of this object represents a single SQL statement. ** This object is variously known as a "prepared statement" or a |
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3251 3252 3253 3254 3255 3256 3257 | ** attack. Developers might also want to use the [sqlite3_set_authorizer()] ** interface to further control untrusted SQL. The size of the database ** created by an untrusted script can be contained using the ** [max_page_count] [PRAGMA]. ** ** New run-time limit categories may be added in future releases. */ | | | 3319 3320 3321 3322 3323 3324 3325 3326 3327 3328 3329 3330 3331 3332 3333 | ** attack. Developers might also want to use the [sqlite3_set_authorizer()] ** interface to further control untrusted SQL. The size of the database ** created by an untrusted script can be contained using the ** [max_page_count] [PRAGMA]. ** ** New run-time limit categories may be added in future releases. */ SQLITE_API int SQLITE_STDCALL sqlite3_limit(sqlite3*, int id, int newVal); /* ** CAPI3REF: Run-Time Limit Categories ** KEYWORDS: {limit category} {*limit categories} ** ** These constants define various performance limits ** that can be lowered at run-time using [sqlite3_limit()]. |
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3338 3339 3340 3341 3342 3343 3344 | ** [sqlite3_open16()]. The database connection must not have been closed. ** ** The second argument, "zSql", is the statement to be compiled, encoded ** as either UTF-8 or UTF-16. The sqlite3_prepare() and sqlite3_prepare_v2() ** interfaces use UTF-8, and sqlite3_prepare16() and sqlite3_prepare16_v2() ** use UTF-16. ** | | | | | < | | | | < | 3406 3407 3408 3409 3410 3411 3412 3413 3414 3415 3416 3417 3418 3419 3420 3421 3422 3423 3424 3425 3426 3427 | ** [sqlite3_open16()]. The database connection must not have been closed. ** ** The second argument, "zSql", is the statement to be compiled, encoded ** as either UTF-8 or UTF-16. The sqlite3_prepare() and sqlite3_prepare_v2() ** interfaces use UTF-8, and sqlite3_prepare16() and sqlite3_prepare16_v2() ** use UTF-16. ** ** ^If the nByte argument is negative, then zSql is read up to the ** first zero terminator. ^If nByte is positive, then it is the ** number of bytes read from zSql. ^If nByte is zero, then no prepared ** statement is generated. ** If the caller knows that the supplied string is nul-terminated, then ** there is a small performance advantage to passing an nByte parameter that ** is the number of bytes in the input string <i>including</i> ** the nul-terminator. ** ** ^If pzTail is not NULL then *pzTail is made to point to the first byte ** past the end of the first SQL statement in zSql. These routines only ** compile the first statement in zSql, so *pzTail is left pointing to ** what remains uncompiled. ** ** ^*ppStmt is left pointing to a compiled [prepared statement] that can be |
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3403 3404 3405 3406 3407 3408 3409 | ** ^The specific value of WHERE-clause [parameter] might influence the ** choice of query plan if the parameter is the left-hand side of a [LIKE] ** or [GLOB] operator or if the parameter is compared to an indexed column ** and the [SQLITE_ENABLE_STAT3] compile-time option is enabled. ** </li> ** </ol> */ | | | | | | | 3469 3470 3471 3472 3473 3474 3475 3476 3477 3478 3479 3480 3481 3482 3483 3484 3485 3486 3487 3488 3489 3490 3491 3492 3493 3494 3495 3496 3497 3498 3499 3500 3501 3502 3503 3504 3505 3506 3507 3508 3509 3510 3511 3512 3513 3514 3515 3516 3517 3518 3519 | ** ^The specific value of WHERE-clause [parameter] might influence the ** choice of query plan if the parameter is the left-hand side of a [LIKE] ** or [GLOB] operator or if the parameter is compared to an indexed column ** and the [SQLITE_ENABLE_STAT3] compile-time option is enabled. ** </li> ** </ol> */ SQLITE_API int SQLITE_STDCALL sqlite3_prepare( sqlite3 *db, /* Database handle */ const char *zSql, /* SQL statement, UTF-8 encoded */ int nByte, /* Maximum length of zSql in bytes. */ sqlite3_stmt **ppStmt, /* OUT: Statement handle */ const char **pzTail /* OUT: Pointer to unused portion of zSql */ ); SQLITE_API int SQLITE_STDCALL sqlite3_prepare_v2( sqlite3 *db, /* Database handle */ const char *zSql, /* SQL statement, UTF-8 encoded */ int nByte, /* Maximum length of zSql in bytes. */ sqlite3_stmt **ppStmt, /* OUT: Statement handle */ const char **pzTail /* OUT: Pointer to unused portion of zSql */ ); SQLITE_API int SQLITE_STDCALL sqlite3_prepare16( sqlite3 *db, /* Database handle */ const void *zSql, /* SQL statement, UTF-16 encoded */ int nByte, /* Maximum length of zSql in bytes. */ sqlite3_stmt **ppStmt, /* OUT: Statement handle */ const void **pzTail /* OUT: Pointer to unused portion of zSql */ ); SQLITE_API int SQLITE_STDCALL sqlite3_prepare16_v2( sqlite3 *db, /* Database handle */ const void *zSql, /* SQL statement, UTF-16 encoded */ int nByte, /* Maximum length of zSql in bytes. */ sqlite3_stmt **ppStmt, /* OUT: Statement handle */ const void **pzTail /* OUT: Pointer to unused portion of zSql */ ); /* ** CAPI3REF: Retrieving Statement SQL ** ** ^This interface can be used to retrieve a saved copy of the original ** SQL text used to create a [prepared statement] if that statement was ** compiled using either [sqlite3_prepare_v2()] or [sqlite3_prepare16_v2()]. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_sql(sqlite3_stmt *pStmt); /* ** CAPI3REF: Determine If An SQL Statement Writes The Database ** ** ^The sqlite3_stmt_readonly(X) interface returns true (non-zero) if ** and only if the [prepared statement] X makes no direct changes to ** the content of the database file. |
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3470 3471 3472 3473 3474 3475 3476 | ** since the statements themselves do not actually modify the database but ** rather they control the timing of when other statements modify the ** database. ^The [ATTACH] and [DETACH] statements also cause ** sqlite3_stmt_readonly() to return true since, while those statements ** change the configuration of a database connection, they do not make ** changes to the content of the database files on disk. */ | | | | 3536 3537 3538 3539 3540 3541 3542 3543 3544 3545 3546 3547 3548 3549 3550 3551 3552 3553 3554 3555 3556 3557 3558 3559 3560 3561 3562 3563 3564 3565 3566 3567 3568 3569 | ** since the statements themselves do not actually modify the database but ** rather they control the timing of when other statements modify the ** database. ^The [ATTACH] and [DETACH] statements also cause ** sqlite3_stmt_readonly() to return true since, while those statements ** change the configuration of a database connection, they do not make ** changes to the content of the database files on disk. */ SQLITE_API int SQLITE_STDCALL sqlite3_stmt_readonly(sqlite3_stmt *pStmt); /* ** CAPI3REF: Determine If A Prepared Statement Has Been Reset ** ** ^The sqlite3_stmt_busy(S) interface returns true (non-zero) if the ** [prepared statement] S has been stepped at least once using ** [sqlite3_step(S)] but has not run to completion and/or has not ** been reset using [sqlite3_reset(S)]. ^The sqlite3_stmt_busy(S) ** interface returns false if S is a NULL pointer. If S is not a ** NULL pointer and is not a pointer to a valid [prepared statement] ** object, then the behavior is undefined and probably undesirable. ** ** This interface can be used in combination [sqlite3_next_stmt()] ** to locate all prepared statements associated with a database ** connection that are in need of being reset. This can be used, ** for example, in diagnostic routines to search for prepared ** statements that are holding a transaction open. */ SQLITE_API int SQLITE_STDCALL sqlite3_stmt_busy(sqlite3_stmt*); /* ** CAPI3REF: Dynamically Typed Value Object ** KEYWORDS: {protected sqlite3_value} {unprotected sqlite3_value} ** ** SQLite uses the sqlite3_value object to represent all values ** that can be stored in a database table. SQLite uses dynamic typing |
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3650 3651 3652 3653 3654 3655 3656 | ** [SQLITE_MAX_LENGTH]. ** ^[SQLITE_RANGE] is returned if the parameter ** index is out of range. ^[SQLITE_NOMEM] is returned if malloc() fails. ** ** See also: [sqlite3_bind_parameter_count()], ** [sqlite3_bind_parameter_name()], and [sqlite3_bind_parameter_index()]. */ | | | | | | | | | | | | | | 3716 3717 3718 3719 3720 3721 3722 3723 3724 3725 3726 3727 3728 3729 3730 3731 3732 3733 3734 3735 3736 3737 3738 3739 3740 3741 3742 3743 3744 3745 3746 3747 3748 3749 3750 3751 3752 3753 3754 3755 3756 3757 3758 3759 3760 3761 3762 | ** [SQLITE_MAX_LENGTH]. ** ^[SQLITE_RANGE] is returned if the parameter ** index is out of range. ^[SQLITE_NOMEM] is returned if malloc() fails. ** ** See also: [sqlite3_bind_parameter_count()], ** [sqlite3_bind_parameter_name()], and [sqlite3_bind_parameter_index()]. */ SQLITE_API int SQLITE_STDCALL sqlite3_bind_blob(sqlite3_stmt*, int, const void*, int n, void(*)(void*)); SQLITE_API int SQLITE_STDCALL sqlite3_bind_blob64(sqlite3_stmt*, int, const void*, sqlite3_uint64, void(*)(void*)); SQLITE_API int SQLITE_STDCALL sqlite3_bind_double(sqlite3_stmt*, int, double); SQLITE_API int SQLITE_STDCALL sqlite3_bind_int(sqlite3_stmt*, int, int); SQLITE_API int SQLITE_STDCALL sqlite3_bind_int64(sqlite3_stmt*, int, sqlite3_int64); SQLITE_API int SQLITE_STDCALL sqlite3_bind_null(sqlite3_stmt*, int); SQLITE_API int SQLITE_STDCALL sqlite3_bind_text(sqlite3_stmt*,int,const char*,int,void(*)(void*)); SQLITE_API int SQLITE_STDCALL sqlite3_bind_text16(sqlite3_stmt*, int, const void*, int, void(*)(void*)); SQLITE_API int SQLITE_STDCALL sqlite3_bind_text64(sqlite3_stmt*, int, const char*, sqlite3_uint64, void(*)(void*), unsigned char encoding); SQLITE_API int SQLITE_STDCALL sqlite3_bind_value(sqlite3_stmt*, int, const sqlite3_value*); SQLITE_API int SQLITE_STDCALL sqlite3_bind_zeroblob(sqlite3_stmt*, int, int n); /* ** CAPI3REF: Number Of SQL Parameters ** ** ^This routine can be used to find the number of [SQL parameters] ** in a [prepared statement]. SQL parameters are tokens of the ** form "?", "?NNN", ":AAA", "$AAA", or "@AAA" that serve as ** placeholders for values that are [sqlite3_bind_blob | bound] ** to the parameters at a later time. ** ** ^(This routine actually returns the index of the largest (rightmost) ** parameter. For all forms except ?NNN, this will correspond to the ** number of unique parameters. If parameters of the ?NNN form are used, ** there may be gaps in the list.)^ ** ** See also: [sqlite3_bind_blob|sqlite3_bind()], ** [sqlite3_bind_parameter_name()], and ** [sqlite3_bind_parameter_index()]. */ SQLITE_API int SQLITE_STDCALL sqlite3_bind_parameter_count(sqlite3_stmt*); /* ** CAPI3REF: Name Of A Host Parameter ** ** ^The sqlite3_bind_parameter_name(P,N) interface returns ** the name of the N-th [SQL parameter] in the [prepared statement] P. ** ^(SQL parameters of the form "?NNN" or ":AAA" or "@AAA" or "$AAA" |
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3709 3710 3711 3712 3713 3714 3715 | ** originally specified as UTF-16 in [sqlite3_prepare16()] or ** [sqlite3_prepare16_v2()]. ** ** See also: [sqlite3_bind_blob|sqlite3_bind()], ** [sqlite3_bind_parameter_count()], and ** [sqlite3_bind_parameter_index()]. */ | | | | | | 3775 3776 3777 3778 3779 3780 3781 3782 3783 3784 3785 3786 3787 3788 3789 3790 3791 3792 3793 3794 3795 3796 3797 3798 3799 3800 3801 3802 3803 3804 3805 3806 3807 3808 3809 3810 3811 3812 3813 3814 3815 3816 3817 3818 3819 3820 3821 3822 3823 3824 3825 | ** originally specified as UTF-16 in [sqlite3_prepare16()] or ** [sqlite3_prepare16_v2()]. ** ** See also: [sqlite3_bind_blob|sqlite3_bind()], ** [sqlite3_bind_parameter_count()], and ** [sqlite3_bind_parameter_index()]. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_bind_parameter_name(sqlite3_stmt*, int); /* ** CAPI3REF: Index Of A Parameter With A Given Name ** ** ^Return the index of an SQL parameter given its name. ^The ** index value returned is suitable for use as the second ** parameter to [sqlite3_bind_blob|sqlite3_bind()]. ^A zero ** is returned if no matching parameter is found. ^The parameter ** name must be given in UTF-8 even if the original statement ** was prepared from UTF-16 text using [sqlite3_prepare16_v2()]. ** ** See also: [sqlite3_bind_blob|sqlite3_bind()], ** [sqlite3_bind_parameter_count()], and ** [sqlite3_bind_parameter_index()]. */ SQLITE_API int SQLITE_STDCALL sqlite3_bind_parameter_index(sqlite3_stmt*, const char *zName); /* ** CAPI3REF: Reset All Bindings On A Prepared Statement ** ** ^Contrary to the intuition of many, [sqlite3_reset()] does not reset ** the [sqlite3_bind_blob | bindings] on a [prepared statement]. ** ^Use this routine to reset all host parameters to NULL. */ SQLITE_API int SQLITE_STDCALL sqlite3_clear_bindings(sqlite3_stmt*); /* ** CAPI3REF: Number Of Columns In A Result Set ** ** ^Return the number of columns in the result set returned by the ** [prepared statement]. ^This routine returns 0 if pStmt is an SQL ** statement that does not return data (for example an [UPDATE]). ** ** See also: [sqlite3_data_count()] */ SQLITE_API int SQLITE_STDCALL sqlite3_column_count(sqlite3_stmt *pStmt); /* ** CAPI3REF: Column Names In A Result Set ** ** ^These routines return the name assigned to a particular column ** in the result set of a [SELECT] statement. ^The sqlite3_column_name() ** interface returns a pointer to a zero-terminated UTF-8 string |
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3773 3774 3775 3776 3777 3778 3779 | ** NULL pointer is returned. ** ** ^The name of a result column is the value of the "AS" clause for ** that column, if there is an AS clause. If there is no AS clause ** then the name of the column is unspecified and may change from ** one release of SQLite to the next. */ | | | | 3839 3840 3841 3842 3843 3844 3845 3846 3847 3848 3849 3850 3851 3852 3853 3854 | ** NULL pointer is returned. ** ** ^The name of a result column is the value of the "AS" clause for ** that column, if there is an AS clause. If there is no AS clause ** then the name of the column is unspecified and may change from ** one release of SQLite to the next. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_column_name(sqlite3_stmt*, int N); SQLITE_API const void *SQLITE_STDCALL sqlite3_column_name16(sqlite3_stmt*, int N); /* ** CAPI3REF: Source Of Data In A Query Result ** ** ^These routines provide a means to determine the database, table, and ** table column that is the origin of a particular result column in ** [SELECT] statement. |
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3821 3822 3823 3824 3825 3826 3827 | ** undefined. ** ** If two or more threads call one or more ** [sqlite3_column_database_name | column metadata interfaces] ** for the same [prepared statement] and result column ** at the same time then the results are undefined. */ | | | | | | | | 3887 3888 3889 3890 3891 3892 3893 3894 3895 3896 3897 3898 3899 3900 3901 3902 3903 3904 3905 3906 | ** undefined. ** ** If two or more threads call one or more ** [sqlite3_column_database_name | column metadata interfaces] ** for the same [prepared statement] and result column ** at the same time then the results are undefined. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_column_database_name(sqlite3_stmt*,int); SQLITE_API const void *SQLITE_STDCALL sqlite3_column_database_name16(sqlite3_stmt*,int); SQLITE_API const char *SQLITE_STDCALL sqlite3_column_table_name(sqlite3_stmt*,int); SQLITE_API const void *SQLITE_STDCALL sqlite3_column_table_name16(sqlite3_stmt*,int); SQLITE_API const char *SQLITE_STDCALL sqlite3_column_origin_name(sqlite3_stmt*,int); SQLITE_API const void *SQLITE_STDCALL sqlite3_column_origin_name16(sqlite3_stmt*,int); /* ** CAPI3REF: Declared Datatype Of A Query Result ** ** ^(The first parameter is a [prepared statement]. ** If this statement is a [SELECT] statement and the Nth column of the ** returned result set of that [SELECT] is a table column (not an |
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3857 3858 3859 3860 3861 3862 3863 | ** ^SQLite uses dynamic run-time typing. ^So just because a column ** is declared to contain a particular type does not mean that the ** data stored in that column is of the declared type. SQLite is ** strongly typed, but the typing is dynamic not static. ^Type ** is associated with individual values, not with the containers ** used to hold those values. */ | | | | 3923 3924 3925 3926 3927 3928 3929 3930 3931 3932 3933 3934 3935 3936 3937 3938 | ** ^SQLite uses dynamic run-time typing. ^So just because a column ** is declared to contain a particular type does not mean that the ** data stored in that column is of the declared type. SQLite is ** strongly typed, but the typing is dynamic not static. ^Type ** is associated with individual values, not with the containers ** used to hold those values. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_column_decltype(sqlite3_stmt*,int); SQLITE_API const void *SQLITE_STDCALL sqlite3_column_decltype16(sqlite3_stmt*,int); /* ** CAPI3REF: Evaluate An SQL Statement ** ** After a [prepared statement] has been prepared using either ** [sqlite3_prepare_v2()] or [sqlite3_prepare16_v2()] or one of the legacy ** interfaces [sqlite3_prepare()] or [sqlite3_prepare16()], this function |
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3937 3938 3939 3940 3941 3942 3943 | ** We admit that this is a goofy design. The problem has been fixed ** with the "v2" interface. If you prepare all of your SQL statements ** using either [sqlite3_prepare_v2()] or [sqlite3_prepare16_v2()] instead ** of the legacy [sqlite3_prepare()] and [sqlite3_prepare16()] interfaces, ** then the more specific [error codes] are returned directly ** by sqlite3_step(). The use of the "v2" interface is recommended. */ | | | | 4003 4004 4005 4006 4007 4008 4009 4010 4011 4012 4013 4014 4015 4016 4017 4018 4019 4020 4021 4022 4023 4024 4025 4026 4027 4028 4029 4030 4031 4032 4033 4034 4035 4036 4037 | ** We admit that this is a goofy design. The problem has been fixed ** with the "v2" interface. If you prepare all of your SQL statements ** using either [sqlite3_prepare_v2()] or [sqlite3_prepare16_v2()] instead ** of the legacy [sqlite3_prepare()] and [sqlite3_prepare16()] interfaces, ** then the more specific [error codes] are returned directly ** by sqlite3_step(). The use of the "v2" interface is recommended. */ SQLITE_API int SQLITE_STDCALL sqlite3_step(sqlite3_stmt*); /* ** CAPI3REF: Number of columns in a result set ** ** ^The sqlite3_data_count(P) interface returns the number of columns in the ** current row of the result set of [prepared statement] P. ** ^If prepared statement P does not have results ready to return ** (via calls to the [sqlite3_column_int | sqlite3_column_*()] of ** interfaces) then sqlite3_data_count(P) returns 0. ** ^The sqlite3_data_count(P) routine also returns 0 if P is a NULL pointer. ** ^The sqlite3_data_count(P) routine returns 0 if the previous call to ** [sqlite3_step](P) returned [SQLITE_DONE]. ^The sqlite3_data_count(P) ** will return non-zero if previous call to [sqlite3_step](P) returned ** [SQLITE_ROW], except in the case of the [PRAGMA incremental_vacuum] ** where it always returns zero since each step of that multi-step ** pragma returns 0 columns of data. ** ** See also: [sqlite3_column_count()] */ SQLITE_API int SQLITE_STDCALL sqlite3_data_count(sqlite3_stmt *pStmt); /* ** CAPI3REF: Fundamental Datatypes ** KEYWORDS: SQLITE_TEXT ** ** ^(Every value in SQLite has one of five fundamental datatypes: ** |
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4153 4154 4155 4156 4157 4158 4159 | ** ** ^(If a memory allocation error occurs during the evaluation of any ** of these routines, a default value is returned. The default value ** is either the integer 0, the floating point number 0.0, or a NULL ** pointer. Subsequent calls to [sqlite3_errcode()] will return ** [SQLITE_NOMEM].)^ */ | | | | | | | | | | | | 4219 4220 4221 4222 4223 4224 4225 4226 4227 4228 4229 4230 4231 4232 4233 4234 4235 4236 4237 4238 4239 4240 4241 4242 | ** ** ^(If a memory allocation error occurs during the evaluation of any ** of these routines, a default value is returned. The default value ** is either the integer 0, the floating point number 0.0, or a NULL ** pointer. Subsequent calls to [sqlite3_errcode()] will return ** [SQLITE_NOMEM].)^ */ SQLITE_API const void *SQLITE_STDCALL sqlite3_column_blob(sqlite3_stmt*, int iCol); SQLITE_API int SQLITE_STDCALL sqlite3_column_bytes(sqlite3_stmt*, int iCol); SQLITE_API int SQLITE_STDCALL sqlite3_column_bytes16(sqlite3_stmt*, int iCol); SQLITE_API double SQLITE_STDCALL sqlite3_column_double(sqlite3_stmt*, int iCol); SQLITE_API int SQLITE_STDCALL sqlite3_column_int(sqlite3_stmt*, int iCol); SQLITE_API sqlite3_int64 SQLITE_STDCALL sqlite3_column_int64(sqlite3_stmt*, int iCol); SQLITE_API const unsigned char *SQLITE_STDCALL sqlite3_column_text(sqlite3_stmt*, int iCol); SQLITE_API const void *SQLITE_STDCALL sqlite3_column_text16(sqlite3_stmt*, int iCol); SQLITE_API int SQLITE_STDCALL sqlite3_column_type(sqlite3_stmt*, int iCol); SQLITE_API sqlite3_value *SQLITE_STDCALL sqlite3_column_value(sqlite3_stmt*, int iCol); /* ** CAPI3REF: Destroy A Prepared Statement Object ** ** ^The sqlite3_finalize() function is called to delete a [prepared statement]. ** ^If the most recent evaluation of the statement encountered no errors ** or if the statement is never been evaluated, then sqlite3_finalize() returns |
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4189 4190 4191 4192 4193 4194 4195 | ** ** The application must finalize every [prepared statement] in order to avoid ** resource leaks. It is a grievous error for the application to try to use ** a prepared statement after it has been finalized. Any use of a prepared ** statement after it has been finalized can result in undefined and ** undesirable behavior such as segfaults and heap corruption. */ | | | 4255 4256 4257 4258 4259 4260 4261 4262 4263 4264 4265 4266 4267 4268 4269 | ** ** The application must finalize every [prepared statement] in order to avoid ** resource leaks. It is a grievous error for the application to try to use ** a prepared statement after it has been finalized. Any use of a prepared ** statement after it has been finalized can result in undefined and ** undesirable behavior such as segfaults and heap corruption. */ SQLITE_API int SQLITE_STDCALL sqlite3_finalize(sqlite3_stmt *pStmt); /* ** CAPI3REF: Reset A Prepared Statement Object ** ** The sqlite3_reset() function is called to reset a [prepared statement] ** object back to its initial state, ready to be re-executed. ** ^Any SQL statement variables that had values bound to them using |
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4215 4216 4217 4218 4219 4220 4221 | ** ^If the most recent call to [sqlite3_step(S)] for the ** [prepared statement] S indicated an error, then ** [sqlite3_reset(S)] returns an appropriate [error code]. ** ** ^The [sqlite3_reset(S)] interface does not change the values ** of any [sqlite3_bind_blob|bindings] on the [prepared statement] S. */ | | | 4281 4282 4283 4284 4285 4286 4287 4288 4289 4290 4291 4292 4293 4294 4295 | ** ^If the most recent call to [sqlite3_step(S)] for the ** [prepared statement] S indicated an error, then ** [sqlite3_reset(S)] returns an appropriate [error code]. ** ** ^The [sqlite3_reset(S)] interface does not change the values ** of any [sqlite3_bind_blob|bindings] on the [prepared statement] S. */ SQLITE_API int SQLITE_STDCALL sqlite3_reset(sqlite3_stmt *pStmt); /* ** CAPI3REF: Create Or Redefine SQL Functions ** KEYWORDS: {function creation routines} ** KEYWORDS: {application-defined SQL function} ** KEYWORDS: {application-defined SQL functions} ** |
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4314 4315 4316 4317 4318 4319 4320 | ** ^Built-in functions may be overloaded by new application-defined functions. ** ** ^An application-defined function is permitted to call other ** SQLite interfaces. However, such calls must not ** close the database connection nor finalize or reset the prepared ** statement in which the function is running. */ | | | | | 4380 4381 4382 4383 4384 4385 4386 4387 4388 4389 4390 4391 4392 4393 4394 4395 4396 4397 4398 4399 4400 4401 4402 4403 4404 4405 4406 4407 4408 4409 4410 4411 4412 4413 4414 | ** ^Built-in functions may be overloaded by new application-defined functions. ** ** ^An application-defined function is permitted to call other ** SQLite interfaces. However, such calls must not ** close the database connection nor finalize or reset the prepared ** statement in which the function is running. */ SQLITE_API int SQLITE_STDCALL sqlite3_create_function( sqlite3 *db, const char *zFunctionName, int nArg, int eTextRep, void *pApp, void (*xFunc)(sqlite3_context*,int,sqlite3_value**), void (*xStep)(sqlite3_context*,int,sqlite3_value**), void (*xFinal)(sqlite3_context*) ); SQLITE_API int SQLITE_STDCALL sqlite3_create_function16( sqlite3 *db, const void *zFunctionName, int nArg, int eTextRep, void *pApp, void (*xFunc)(sqlite3_context*,int,sqlite3_value**), void (*xStep)(sqlite3_context*,int,sqlite3_value**), void (*xFinal)(sqlite3_context*) ); SQLITE_API int SQLITE_STDCALL sqlite3_create_function_v2( sqlite3 *db, const char *zFunctionName, int nArg, int eTextRep, void *pApp, void (*xFunc)(sqlite3_context*,int,sqlite3_value**), void (*xStep)(sqlite3_context*,int,sqlite3_value**), |
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4376 4377 4378 4379 4380 4381 4382 | /* ** CAPI3REF: Deprecated Functions ** DEPRECATED ** ** These functions are [deprecated]. In order to maintain ** backwards compatibility with older code, these functions continue ** to be supported. However, new applications should avoid | | | | | | | | | | 4442 4443 4444 4445 4446 4447 4448 4449 4450 4451 4452 4453 4454 4455 4456 4457 4458 4459 4460 4461 4462 4463 4464 4465 | /* ** CAPI3REF: Deprecated Functions ** DEPRECATED ** ** These functions are [deprecated]. In order to maintain ** backwards compatibility with older code, these functions continue ** to be supported. However, new applications should avoid ** the use of these functions. To encourage programmers to avoid ** these functions, we will not explain what they do. */ #ifndef SQLITE_OMIT_DEPRECATED SQLITE_API SQLITE_DEPRECATED int SQLITE_STDCALL sqlite3_aggregate_count(sqlite3_context*); SQLITE_API SQLITE_DEPRECATED int SQLITE_STDCALL sqlite3_expired(sqlite3_stmt*); SQLITE_API SQLITE_DEPRECATED int SQLITE_STDCALL sqlite3_transfer_bindings(sqlite3_stmt*, sqlite3_stmt*); SQLITE_API SQLITE_DEPRECATED int SQLITE_STDCALL sqlite3_global_recover(void); SQLITE_API SQLITE_DEPRECATED void SQLITE_STDCALL sqlite3_thread_cleanup(void); SQLITE_API SQLITE_DEPRECATED int SQLITE_STDCALL sqlite3_memory_alarm(void(*)(void*,sqlite3_int64,int), void*,sqlite3_int64); #endif /* ** CAPI3REF: Obtaining SQL Function Parameter Values ** ** The C-language implementation of SQL functions and aggregates uses |
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4434 4435 4436 4437 4438 4439 4440 | ** [sqlite3_value_text16()] can be invalidated by a subsequent call to ** [sqlite3_value_bytes()], [sqlite3_value_bytes16()], [sqlite3_value_text()], ** or [sqlite3_value_text16()]. ** ** These routines must be called from the same thread as ** the SQL function that supplied the [sqlite3_value*] parameters. */ | | | | | | | | | | | | | | 4500 4501 4502 4503 4504 4505 4506 4507 4508 4509 4510 4511 4512 4513 4514 4515 4516 4517 4518 4519 4520 4521 4522 4523 4524 4525 | ** [sqlite3_value_text16()] can be invalidated by a subsequent call to ** [sqlite3_value_bytes()], [sqlite3_value_bytes16()], [sqlite3_value_text()], ** or [sqlite3_value_text16()]. ** ** These routines must be called from the same thread as ** the SQL function that supplied the [sqlite3_value*] parameters. */ SQLITE_API const void *SQLITE_STDCALL sqlite3_value_blob(sqlite3_value*); SQLITE_API int SQLITE_STDCALL sqlite3_value_bytes(sqlite3_value*); SQLITE_API int SQLITE_STDCALL sqlite3_value_bytes16(sqlite3_value*); SQLITE_API double SQLITE_STDCALL sqlite3_value_double(sqlite3_value*); SQLITE_API int SQLITE_STDCALL sqlite3_value_int(sqlite3_value*); SQLITE_API sqlite3_int64 SQLITE_STDCALL sqlite3_value_int64(sqlite3_value*); SQLITE_API const unsigned char *SQLITE_STDCALL sqlite3_value_text(sqlite3_value*); SQLITE_API const void *SQLITE_STDCALL sqlite3_value_text16(sqlite3_value*); SQLITE_API const void *SQLITE_STDCALL sqlite3_value_text16le(sqlite3_value*); SQLITE_API const void *SQLITE_STDCALL sqlite3_value_text16be(sqlite3_value*); SQLITE_API int SQLITE_STDCALL sqlite3_value_type(sqlite3_value*); SQLITE_API int SQLITE_STDCALL sqlite3_value_numeric_type(sqlite3_value*); /* ** CAPI3REF: Obtain Aggregate Function Context ** ** Implementations of aggregate SQL functions use this ** routine to allocate memory for storing their state. ** |
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4489 4490 4491 4492 4493 4494 4495 | ** [sqlite3_context | SQL function context] that is the first parameter ** to the xStep or xFinal callback routine that implements the aggregate ** function. ** ** This routine must be called from the same thread in which ** the aggregate SQL function is running. */ | | | | | 4555 4556 4557 4558 4559 4560 4561 4562 4563 4564 4565 4566 4567 4568 4569 4570 4571 4572 4573 4574 4575 4576 4577 4578 4579 4580 4581 4582 4583 4584 4585 4586 4587 4588 4589 4590 4591 4592 4593 4594 | ** [sqlite3_context | SQL function context] that is the first parameter ** to the xStep or xFinal callback routine that implements the aggregate ** function. ** ** This routine must be called from the same thread in which ** the aggregate SQL function is running. */ SQLITE_API void *SQLITE_STDCALL sqlite3_aggregate_context(sqlite3_context*, int nBytes); /* ** CAPI3REF: User Data For Functions ** ** ^The sqlite3_user_data() interface returns a copy of ** the pointer that was the pUserData parameter (the 5th parameter) ** of the [sqlite3_create_function()] ** and [sqlite3_create_function16()] routines that originally ** registered the application defined function. ** ** This routine must be called from the same thread in which ** the application-defined function is running. */ SQLITE_API void *SQLITE_STDCALL sqlite3_user_data(sqlite3_context*); /* ** CAPI3REF: Database Connection For Functions ** ** ^The sqlite3_context_db_handle() interface returns a copy of ** the pointer to the [database connection] (the 1st parameter) ** of the [sqlite3_create_function()] ** and [sqlite3_create_function16()] routines that originally ** registered the application defined function. */ SQLITE_API sqlite3 *SQLITE_STDCALL sqlite3_context_db_handle(sqlite3_context*); /* ** CAPI3REF: Function Auxiliary Data ** ** These functions may be used by (non-aggregate) SQL functions to ** associate metadata with argument values. If the same value is passed to ** multiple invocations of the same SQL function during query execution, under |
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4566 4567 4568 4569 4570 4571 4572 | ** ^(In practice, metadata is preserved between function calls for ** function parameters that are compile-time constants, including literal ** values and [parameters] and expressions composed from the same.)^ ** ** These routines must be called from the same thread in which ** the SQL function is running. */ | | | | 4632 4633 4634 4635 4636 4637 4638 4639 4640 4641 4642 4643 4644 4645 4646 4647 | ** ^(In practice, metadata is preserved between function calls for ** function parameters that are compile-time constants, including literal ** values and [parameters] and expressions composed from the same.)^ ** ** These routines must be called from the same thread in which ** the SQL function is running. */ SQLITE_API void *SQLITE_STDCALL sqlite3_get_auxdata(sqlite3_context*, int N); SQLITE_API void SQLITE_STDCALL sqlite3_set_auxdata(sqlite3_context*, int N, void*, void (*)(void*)); /* ** CAPI3REF: Constants Defining Special Destructor Behavior ** ** These are special values for the destructor that is passed in as the ** final argument to routines like [sqlite3_result_blob()]. ^If the destructor |
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4702 4703 4704 4705 4706 4707 4708 | ** [unprotected sqlite3_value] object is required, so either ** kind of [sqlite3_value] object can be used with this interface. ** ** If these routines are called from within the different thread ** than the one containing the application-defined function that received ** the [sqlite3_context] pointer, the results are undefined. */ | | | | | | | | | | | | | | | | | | | | 4768 4769 4770 4771 4772 4773 4774 4775 4776 4777 4778 4779 4780 4781 4782 4783 4784 4785 4786 4787 4788 4789 4790 4791 4792 4793 4794 4795 4796 4797 4798 4799 4800 4801 | ** [unprotected sqlite3_value] object is required, so either ** kind of [sqlite3_value] object can be used with this interface. ** ** If these routines are called from within the different thread ** than the one containing the application-defined function that received ** the [sqlite3_context] pointer, the results are undefined. */ SQLITE_API void SQLITE_STDCALL sqlite3_result_blob(sqlite3_context*, const void*, int, void(*)(void*)); SQLITE_API void SQLITE_STDCALL sqlite3_result_blob64(sqlite3_context*,const void*, sqlite3_uint64,void(*)(void*)); SQLITE_API void SQLITE_STDCALL sqlite3_result_double(sqlite3_context*, double); SQLITE_API void SQLITE_STDCALL sqlite3_result_error(sqlite3_context*, const char*, int); SQLITE_API void SQLITE_STDCALL sqlite3_result_error16(sqlite3_context*, const void*, int); SQLITE_API void SQLITE_STDCALL sqlite3_result_error_toobig(sqlite3_context*); SQLITE_API void SQLITE_STDCALL sqlite3_result_error_nomem(sqlite3_context*); SQLITE_API void SQLITE_STDCALL sqlite3_result_error_code(sqlite3_context*, int); SQLITE_API void SQLITE_STDCALL sqlite3_result_int(sqlite3_context*, int); SQLITE_API void SQLITE_STDCALL sqlite3_result_int64(sqlite3_context*, sqlite3_int64); SQLITE_API void SQLITE_STDCALL sqlite3_result_null(sqlite3_context*); SQLITE_API void SQLITE_STDCALL sqlite3_result_text(sqlite3_context*, const char*, int, void(*)(void*)); SQLITE_API void SQLITE_STDCALL sqlite3_result_text64(sqlite3_context*, const char*,sqlite3_uint64, void(*)(void*), unsigned char encoding); SQLITE_API void SQLITE_STDCALL sqlite3_result_text16(sqlite3_context*, const void*, int, void(*)(void*)); SQLITE_API void SQLITE_STDCALL sqlite3_result_text16le(sqlite3_context*, const void*, int,void(*)(void*)); SQLITE_API void SQLITE_STDCALL sqlite3_result_text16be(sqlite3_context*, const void*, int,void(*)(void*)); SQLITE_API void SQLITE_STDCALL sqlite3_result_value(sqlite3_context*, sqlite3_value*); SQLITE_API void SQLITE_STDCALL sqlite3_result_zeroblob(sqlite3_context*, int n); /* ** CAPI3REF: Define New Collating Sequences ** ** ^These functions add, remove, or modify a [collation] associated ** with the [database connection] specified as the first argument. ** |
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4802 4803 4804 4805 4806 4807 4808 | ** themselves rather than expecting SQLite to deal with it for them. ** This is different from every other SQLite interface. The inconsistency ** is unfortunate but cannot be changed without breaking backwards ** compatibility. ** ** See also: [sqlite3_collation_needed()] and [sqlite3_collation_needed16()]. */ | | | | | 4868 4869 4870 4871 4872 4873 4874 4875 4876 4877 4878 4879 4880 4881 4882 4883 4884 4885 4886 4887 4888 4889 4890 4891 4892 4893 4894 4895 4896 4897 | ** themselves rather than expecting SQLite to deal with it for them. ** This is different from every other SQLite interface. The inconsistency ** is unfortunate but cannot be changed without breaking backwards ** compatibility. ** ** See also: [sqlite3_collation_needed()] and [sqlite3_collation_needed16()]. */ SQLITE_API int SQLITE_STDCALL sqlite3_create_collation( sqlite3*, const char *zName, int eTextRep, void *pArg, int(*xCompare)(void*,int,const void*,int,const void*) ); SQLITE_API int SQLITE_STDCALL sqlite3_create_collation_v2( sqlite3*, const char *zName, int eTextRep, void *pArg, int(*xCompare)(void*,int,const void*,int,const void*), void(*xDestroy)(void*) ); SQLITE_API int SQLITE_STDCALL sqlite3_create_collation16( sqlite3*, const void *zName, int eTextRep, void *pArg, int(*xCompare)(void*,int,const void*,int,const void*) ); |
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4851 4852 4853 4854 4855 4856 4857 | ** sequence function required. The fourth parameter is the name of the ** required collation sequence.)^ ** ** The callback function should register the desired collation using ** [sqlite3_create_collation()], [sqlite3_create_collation16()], or ** [sqlite3_create_collation_v2()]. */ | | | | | | | | | | 4917 4918 4919 4920 4921 4922 4923 4924 4925 4926 4927 4928 4929 4930 4931 4932 4933 4934 4935 4936 4937 4938 4939 4940 4941 4942 4943 4944 4945 4946 4947 4948 4949 4950 4951 4952 4953 4954 4955 4956 4957 4958 4959 4960 4961 4962 4963 4964 4965 4966 4967 4968 4969 4970 4971 4972 4973 4974 4975 4976 4977 4978 4979 4980 4981 4982 4983 4984 4985 4986 4987 4988 4989 4990 4991 4992 | ** sequence function required. The fourth parameter is the name of the ** required collation sequence.)^ ** ** The callback function should register the desired collation using ** [sqlite3_create_collation()], [sqlite3_create_collation16()], or ** [sqlite3_create_collation_v2()]. */ SQLITE_API int SQLITE_STDCALL sqlite3_collation_needed( sqlite3*, void*, void(*)(void*,sqlite3*,int eTextRep,const char*) ); SQLITE_API int SQLITE_STDCALL sqlite3_collation_needed16( sqlite3*, void*, void(*)(void*,sqlite3*,int eTextRep,const void*) ); #ifdef SQLITE_HAS_CODEC /* ** Specify the key for an encrypted database. This routine should be ** called right after sqlite3_open(). ** ** The code to implement this API is not available in the public release ** of SQLite. */ SQLITE_API int SQLITE_STDCALL sqlite3_key( sqlite3 *db, /* Database to be rekeyed */ const void *pKey, int nKey /* The key */ ); SQLITE_API int SQLITE_STDCALL sqlite3_key_v2( sqlite3 *db, /* Database to be rekeyed */ const char *zDbName, /* Name of the database */ const void *pKey, int nKey /* The key */ ); /* ** Change the key on an open database. If the current database is not ** encrypted, this routine will encrypt it. If pNew==0 or nNew==0, the ** database is decrypted. ** ** The code to implement this API is not available in the public release ** of SQLite. */ SQLITE_API int SQLITE_STDCALL sqlite3_rekey( sqlite3 *db, /* Database to be rekeyed */ const void *pKey, int nKey /* The new key */ ); SQLITE_API int SQLITE_STDCALL sqlite3_rekey_v2( sqlite3 *db, /* Database to be rekeyed */ const char *zDbName, /* Name of the database */ const void *pKey, int nKey /* The new key */ ); /* ** Specify the activation key for a SEE database. Unless ** activated, none of the SEE routines will work. */ SQLITE_API void SQLITE_STDCALL sqlite3_activate_see( const char *zPassPhrase /* Activation phrase */ ); #endif #ifdef SQLITE_ENABLE_CEROD /* ** Specify the activation key for a CEROD database. Unless ** activated, none of the CEROD routines will work. */ SQLITE_API void SQLITE_STDCALL sqlite3_activate_cerod( const char *zPassPhrase /* Activation phrase */ ); #endif /* ** CAPI3REF: Suspend Execution For A Short Time ** |
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4934 4935 4936 4937 4938 4939 4940 | ** ** ^SQLite implements this interface by calling the xSleep() ** method of the default [sqlite3_vfs] object. If the xSleep() method ** of the default VFS is not implemented correctly, or not implemented at ** all, then the behavior of sqlite3_sleep() may deviate from the description ** in the previous paragraphs. */ | | | 5000 5001 5002 5003 5004 5005 5006 5007 5008 5009 5010 5011 5012 5013 5014 | ** ** ^SQLite implements this interface by calling the xSleep() ** method of the default [sqlite3_vfs] object. If the xSleep() method ** of the default VFS is not implemented correctly, or not implemented at ** all, then the behavior of sqlite3_sleep() may deviate from the description ** in the previous paragraphs. */ SQLITE_API int SQLITE_STDCALL sqlite3_sleep(int); /* ** CAPI3REF: Name Of The Folder Holding Temporary Files ** ** ^(If this global variable is made to point to a string which is ** the name of a folder (a.k.a. directory), then all temporary files ** created by SQLite when using a built-in [sqlite3_vfs | VFS] |
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5052 5053 5054 5055 5056 5057 5058 | ** find out whether SQLite automatically rolled back the transaction after ** an error is to use this function. ** ** If another thread changes the autocommit status of the database ** connection while this routine is running, then the return value ** is undefined. */ | | | | | | | 5118 5119 5120 5121 5122 5123 5124 5125 5126 5127 5128 5129 5130 5131 5132 5133 5134 5135 5136 5137 5138 5139 5140 5141 5142 5143 5144 5145 5146 5147 5148 5149 5150 5151 5152 5153 5154 5155 5156 5157 5158 5159 5160 5161 5162 5163 5164 5165 5166 5167 5168 5169 5170 5171 5172 5173 5174 5175 5176 5177 5178 5179 5180 5181 5182 5183 5184 | ** find out whether SQLite automatically rolled back the transaction after ** an error is to use this function. ** ** If another thread changes the autocommit status of the database ** connection while this routine is running, then the return value ** is undefined. */ SQLITE_API int SQLITE_STDCALL sqlite3_get_autocommit(sqlite3*); /* ** CAPI3REF: Find The Database Handle Of A Prepared Statement ** ** ^The sqlite3_db_handle interface returns the [database connection] handle ** to which a [prepared statement] belongs. ^The [database connection] ** returned by sqlite3_db_handle is the same [database connection] ** that was the first argument ** to the [sqlite3_prepare_v2()] call (or its variants) that was used to ** create the statement in the first place. */ SQLITE_API sqlite3 *SQLITE_STDCALL sqlite3_db_handle(sqlite3_stmt*); /* ** CAPI3REF: Return The Filename For A Database Connection ** ** ^The sqlite3_db_filename(D,N) interface returns a pointer to a filename ** associated with database N of connection D. ^The main database file ** has the name "main". If there is no attached database N on the database ** connection D, or if database N is a temporary or in-memory database, then ** a NULL pointer is returned. ** ** ^The filename returned by this function is the output of the ** xFullPathname method of the [VFS]. ^In other words, the filename ** will be an absolute pathname, even if the filename used ** to open the database originally was a URI or relative pathname. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_db_filename(sqlite3 *db, const char *zDbName); /* ** CAPI3REF: Determine if a database is read-only ** ** ^The sqlite3_db_readonly(D,N) interface returns 1 if the database N ** of connection D is read-only, 0 if it is read/write, or -1 if N is not ** the name of a database on connection D. */ SQLITE_API int SQLITE_STDCALL sqlite3_db_readonly(sqlite3 *db, const char *zDbName); /* ** CAPI3REF: Find the next prepared statement ** ** ^This interface returns a pointer to the next [prepared statement] after ** pStmt associated with the [database connection] pDb. ^If pStmt is NULL ** then this interface returns a pointer to the first prepared statement ** associated with the database connection pDb. ^If no prepared statement ** satisfies the conditions of this routine, it returns NULL. ** ** The [database connection] pointer D in a call to ** [sqlite3_next_stmt(D,S)] must refer to an open database ** connection and in particular must not be a NULL pointer. */ SQLITE_API sqlite3_stmt *SQLITE_STDCALL sqlite3_next_stmt(sqlite3 *pDb, sqlite3_stmt *pStmt); /* ** CAPI3REF: Commit And Rollback Notification Callbacks ** ** ^The sqlite3_commit_hook() interface registers a callback ** function to be invoked whenever a transaction is [COMMIT | committed]. ** ^Any callback set by a previous call to sqlite3_commit_hook() |
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5152 5153 5154 5155 5156 5157 5158 | ** rolled back if an explicit "ROLLBACK" statement is executed, or ** an error or constraint causes an implicit rollback to occur. ** ^The rollback callback is not invoked if a transaction is ** automatically rolled back because the database connection is closed. ** ** See also the [sqlite3_update_hook()] interface. */ | | | | 5218 5219 5220 5221 5222 5223 5224 5225 5226 5227 5228 5229 5230 5231 5232 5233 | ** rolled back if an explicit "ROLLBACK" statement is executed, or ** an error or constraint causes an implicit rollback to occur. ** ^The rollback callback is not invoked if a transaction is ** automatically rolled back because the database connection is closed. ** ** See also the [sqlite3_update_hook()] interface. */ SQLITE_API void *SQLITE_STDCALL sqlite3_commit_hook(sqlite3*, int(*)(void*), void*); SQLITE_API void *SQLITE_STDCALL sqlite3_rollback_hook(sqlite3*, void(*)(void *), void*); /* ** CAPI3REF: Data Change Notification Callbacks ** ** ^The sqlite3_update_hook() interface registers a callback function ** with the [database connection] identified by the first argument ** to be invoked whenever a row is updated, inserted or deleted in |
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5203 5204 5205 5206 5207 5208 5209 | ** returns the P argument from the previous call ** on the same [database connection] D, or NULL for ** the first call on D. ** ** See also the [sqlite3_commit_hook()] and [sqlite3_rollback_hook()] ** interfaces. */ | | | 5269 5270 5271 5272 5273 5274 5275 5276 5277 5278 5279 5280 5281 5282 5283 | ** returns the P argument from the previous call ** on the same [database connection] D, or NULL for ** the first call on D. ** ** See also the [sqlite3_commit_hook()] and [sqlite3_rollback_hook()] ** interfaces. */ SQLITE_API void *SQLITE_STDCALL sqlite3_update_hook( sqlite3*, void(*)(void *,int ,char const *,char const *,sqlite3_int64), void* ); /* ** CAPI3REF: Enable Or Disable Shared Pager Cache |
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5232 5233 5234 5235 5236 5237 5238 5239 5240 5241 5242 5243 5244 | ** ** ^(This routine returns [SQLITE_OK] if shared cache was enabled or disabled ** successfully. An [error code] is returned otherwise.)^ ** ** ^Shared cache is disabled by default. But this might change in ** future releases of SQLite. Applications that care about shared ** cache setting should set it explicitly. ** ** This interface is threadsafe on processors where writing a ** 32-bit integer is atomic. ** ** See Also: [SQLite Shared-Cache Mode] */ | > > > > > | | | | 5298 5299 5300 5301 5302 5303 5304 5305 5306 5307 5308 5309 5310 5311 5312 5313 5314 5315 5316 5317 5318 5319 5320 5321 5322 5323 5324 5325 5326 5327 5328 5329 5330 5331 5332 5333 5334 5335 5336 5337 5338 5339 5340 5341 5342 5343 5344 5345 5346 5347 5348 5349 5350 5351 5352 | ** ** ^(This routine returns [SQLITE_OK] if shared cache was enabled or disabled ** successfully. An [error code] is returned otherwise.)^ ** ** ^Shared cache is disabled by default. But this might change in ** future releases of SQLite. Applications that care about shared ** cache setting should set it explicitly. ** ** Note: This method is disabled on MacOS X 10.7 and iOS version 5.0 ** and will always return SQLITE_MISUSE. On those systems, ** shared cache mode should be enabled per-database connection via ** [sqlite3_open_v2()] with [SQLITE_OPEN_SHAREDCACHE]. ** ** This interface is threadsafe on processors where writing a ** 32-bit integer is atomic. ** ** See Also: [SQLite Shared-Cache Mode] */ SQLITE_API int SQLITE_STDCALL sqlite3_enable_shared_cache(int); /* ** CAPI3REF: Attempt To Free Heap Memory ** ** ^The sqlite3_release_memory() interface attempts to free N bytes ** of heap memory by deallocating non-essential memory allocations ** held by the database library. Memory used to cache database ** pages to improve performance is an example of non-essential memory. ** ^sqlite3_release_memory() returns the number of bytes actually freed, ** which might be more or less than the amount requested. ** ^The sqlite3_release_memory() routine is a no-op returning zero ** if SQLite is not compiled with [SQLITE_ENABLE_MEMORY_MANAGEMENT]. ** ** See also: [sqlite3_db_release_memory()] */ SQLITE_API int SQLITE_STDCALL sqlite3_release_memory(int); /* ** CAPI3REF: Free Memory Used By A Database Connection ** ** ^The sqlite3_db_release_memory(D) interface attempts to free as much heap ** memory as possible from database connection D. Unlike the ** [sqlite3_release_memory()] interface, this interface is in effect even ** when the [SQLITE_ENABLE_MEMORY_MANAGEMENT] compile-time option is ** omitted. ** ** See also: [sqlite3_release_memory()] */ SQLITE_API int SQLITE_STDCALL sqlite3_db_release_memory(sqlite3*); /* ** CAPI3REF: Impose A Limit On Heap Size ** ** ^The sqlite3_soft_heap_limit64() interface sets and/or queries the ** soft limit on the amount of heap memory that may be allocated by SQLite. ** ^SQLite strives to keep heap memory utilization below the soft heap |
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5319 5320 5321 5322 5323 5324 5325 | ** the page cache is the predominate memory user in SQLite, most ** applications will achieve adequate soft heap limit enforcement without ** the use of [SQLITE_ENABLE_MEMORY_MANAGEMENT]. ** ** The circumstances under which SQLite will enforce the soft heap limit may ** changes in future releases of SQLite. */ | | | | 5390 5391 5392 5393 5394 5395 5396 5397 5398 5399 5400 5401 5402 5403 5404 5405 5406 5407 5408 5409 5410 5411 5412 5413 5414 5415 | ** the page cache is the predominate memory user in SQLite, most ** applications will achieve adequate soft heap limit enforcement without ** the use of [SQLITE_ENABLE_MEMORY_MANAGEMENT]. ** ** The circumstances under which SQLite will enforce the soft heap limit may ** changes in future releases of SQLite. */ SQLITE_API sqlite3_int64 SQLITE_STDCALL sqlite3_soft_heap_limit64(sqlite3_int64 N); /* ** CAPI3REF: Deprecated Soft Heap Limit Interface ** DEPRECATED ** ** This is a deprecated version of the [sqlite3_soft_heap_limit64()] ** interface. This routine is provided for historical compatibility ** only. All new applications should use the ** [sqlite3_soft_heap_limit64()] interface rather than this one. */ SQLITE_API SQLITE_DEPRECATED void SQLITE_STDCALL sqlite3_soft_heap_limit(int N); /* ** CAPI3REF: Extract Metadata About A Column Of A Table ** ** ^(The sqlite3_table_column_metadata(X,D,T,C,....) routine returns ** information about column C of table T in database D |
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5399 5400 5401 5402 5403 5404 5405 | ** auto increment: 0 ** </pre>)^ ** ** ^This function causes all database schemas to be read from disk and ** parsed, if that has not already been done, and returns an error if ** any errors are encountered while loading the schema. */ | | | 5470 5471 5472 5473 5474 5475 5476 5477 5478 5479 5480 5481 5482 5483 5484 | ** auto increment: 0 ** </pre>)^ ** ** ^This function causes all database schemas to be read from disk and ** parsed, if that has not already been done, and returns an error if ** any errors are encountered while loading the schema. */ SQLITE_API int SQLITE_STDCALL sqlite3_table_column_metadata( sqlite3 *db, /* Connection handle */ const char *zDbName, /* Database name or NULL */ const char *zTableName, /* Table name */ const char *zColumnName, /* Column name */ char const **pzDataType, /* OUTPUT: Declared data type */ char const **pzCollSeq, /* OUTPUT: Collation sequence name */ int *pNotNull, /* OUTPUT: True if NOT NULL constraint exists */ |
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5445 5446 5447 5448 5449 5450 5451 | ** ** ^Extension loading must be enabled using ** [sqlite3_enable_load_extension()] prior to calling this API, ** otherwise an error will be returned. ** ** See also the [load_extension() SQL function]. */ | | | | 5516 5517 5518 5519 5520 5521 5522 5523 5524 5525 5526 5527 5528 5529 5530 5531 5532 5533 5534 5535 5536 5537 5538 5539 5540 5541 5542 5543 5544 5545 5546 5547 5548 5549 5550 | ** ** ^Extension loading must be enabled using ** [sqlite3_enable_load_extension()] prior to calling this API, ** otherwise an error will be returned. ** ** See also the [load_extension() SQL function]. */ SQLITE_API int SQLITE_STDCALL sqlite3_load_extension( sqlite3 *db, /* Load the extension into this database connection */ const char *zFile, /* Name of the shared library containing extension */ const char *zProc, /* Entry point. Derived from zFile if 0 */ char **pzErrMsg /* Put error message here if not 0 */ ); /* ** CAPI3REF: Enable Or Disable Extension Loading ** ** ^So as not to open security holes in older applications that are ** unprepared to deal with [extension loading], and as a means of disabling ** [extension loading] while evaluating user-entered SQL, the following API ** is provided to turn the [sqlite3_load_extension()] mechanism on and off. ** ** ^Extension loading is off by default. ** ^Call the sqlite3_enable_load_extension() routine with onoff==1 ** to turn extension loading on and call it with onoff==0 to turn ** it back off again. */ SQLITE_API int SQLITE_STDCALL sqlite3_enable_load_extension(sqlite3 *db, int onoff); /* ** CAPI3REF: Automatically Load Statically Linked Extensions ** ** ^This interface causes the xEntryPoint() function to be invoked for ** each new [database connection] that is created. The idea here is that ** xEntryPoint() is the entry point for a statically linked [SQLite extension] |
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5503 5504 5505 5506 5507 5508 5509 | ** ^Calling sqlite3_auto_extension(X) with an entry point X that is already ** on the list of automatic extensions is a harmless no-op. ^No entry point ** will be called more than once for each database connection that is opened. ** ** See also: [sqlite3_reset_auto_extension()] ** and [sqlite3_cancel_auto_extension()] */ | | | | | 5574 5575 5576 5577 5578 5579 5580 5581 5582 5583 5584 5585 5586 5587 5588 5589 5590 5591 5592 5593 5594 5595 5596 5597 5598 5599 5600 5601 5602 5603 5604 5605 5606 5607 5608 | ** ^Calling sqlite3_auto_extension(X) with an entry point X that is already ** on the list of automatic extensions is a harmless no-op. ^No entry point ** will be called more than once for each database connection that is opened. ** ** See also: [sqlite3_reset_auto_extension()] ** and [sqlite3_cancel_auto_extension()] */ SQLITE_API int SQLITE_STDCALL sqlite3_auto_extension(void (*xEntryPoint)(void)); /* ** CAPI3REF: Cancel Automatic Extension Loading ** ** ^The [sqlite3_cancel_auto_extension(X)] interface unregisters the ** initialization routine X that was registered using a prior call to ** [sqlite3_auto_extension(X)]. ^The [sqlite3_cancel_auto_extension(X)] ** routine returns 1 if initialization routine X was successfully ** unregistered and it returns 0 if X was not on the list of initialization ** routines. */ SQLITE_API int SQLITE_STDCALL sqlite3_cancel_auto_extension(void (*xEntryPoint)(void)); /* ** CAPI3REF: Reset Automatic Extension Loading ** ** ^This interface disables all automatic extensions previously ** registered using [sqlite3_auto_extension()]. */ SQLITE_API void SQLITE_STDCALL sqlite3_reset_auto_extension(void); /* ** The interface to the virtual-table mechanism is currently considered ** to be experimental. The interface might change in incompatible ways. ** If this is a problem for you, do not use the interface at this time. ** ** When the virtual-table mechanism stabilizes, we will declare the |
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5726 5727 5728 5729 5730 5731 5732 | ** invoke the destructor function (if it is not NULL) when SQLite ** no longer needs the pClientData pointer. ^The destructor will also ** be invoked if the call to sqlite3_create_module_v2() fails. ** ^The sqlite3_create_module() ** interface is equivalent to sqlite3_create_module_v2() with a NULL ** destructor. */ | | | | 5797 5798 5799 5800 5801 5802 5803 5804 5805 5806 5807 5808 5809 5810 5811 5812 5813 5814 5815 5816 5817 | ** invoke the destructor function (if it is not NULL) when SQLite ** no longer needs the pClientData pointer. ^The destructor will also ** be invoked if the call to sqlite3_create_module_v2() fails. ** ^The sqlite3_create_module() ** interface is equivalent to sqlite3_create_module_v2() with a NULL ** destructor. */ SQLITE_API int SQLITE_STDCALL sqlite3_create_module( sqlite3 *db, /* SQLite connection to register module with */ const char *zName, /* Name of the module */ const sqlite3_module *p, /* Methods for the module */ void *pClientData /* Client data for xCreate/xConnect */ ); SQLITE_API int SQLITE_STDCALL sqlite3_create_module_v2( sqlite3 *db, /* SQLite connection to register module with */ const char *zName, /* Name of the module */ const sqlite3_module *p, /* Methods for the module */ void *pClientData, /* Client data for xCreate/xConnect */ void(*xDestroy)(void*) /* Module destructor function */ ); |
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5760 5761 5762 5763 5764 5765 5766 | ** take care that any prior string is freed by a call to [sqlite3_free()] ** prior to assigning a new string to zErrMsg. ^After the error message ** is delivered up to the client application, the string will be automatically ** freed by sqlite3_free() and the zErrMsg field will be zeroed. */ struct sqlite3_vtab { const sqlite3_module *pModule; /* The module for this virtual table */ | | | 5831 5832 5833 5834 5835 5836 5837 5838 5839 5840 5841 5842 5843 5844 5845 | ** take care that any prior string is freed by a call to [sqlite3_free()] ** prior to assigning a new string to zErrMsg. ^After the error message ** is delivered up to the client application, the string will be automatically ** freed by sqlite3_free() and the zErrMsg field will be zeroed. */ struct sqlite3_vtab { const sqlite3_module *pModule; /* The module for this virtual table */ int nRef; /* Number of open cursors */ char *zErrMsg; /* Error message from sqlite3_mprintf() */ /* Virtual table implementations will typically add additional fields */ }; /* ** CAPI3REF: Virtual Table Cursor Object ** KEYWORDS: sqlite3_vtab_cursor {virtual table cursor} |
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5795 5796 5797 5798 5799 5800 5801 | ** CAPI3REF: Declare The Schema Of A Virtual Table ** ** ^The [xCreate] and [xConnect] methods of a ** [virtual table module] call this interface ** to declare the format (the names and datatypes of the columns) of ** the virtual tables they implement. */ | | | | 5866 5867 5868 5869 5870 5871 5872 5873 5874 5875 5876 5877 5878 5879 5880 5881 5882 5883 5884 5885 5886 5887 5888 5889 5890 5891 5892 5893 5894 5895 5896 5897 5898 | ** CAPI3REF: Declare The Schema Of A Virtual Table ** ** ^The [xCreate] and [xConnect] methods of a ** [virtual table module] call this interface ** to declare the format (the names and datatypes of the columns) of ** the virtual tables they implement. */ SQLITE_API int SQLITE_STDCALL sqlite3_declare_vtab(sqlite3*, const char *zSQL); /* ** CAPI3REF: Overload A Function For A Virtual Table ** ** ^(Virtual tables can provide alternative implementations of functions ** using the [xFindFunction] method of the [virtual table module]. ** But global versions of those functions ** must exist in order to be overloaded.)^ ** ** ^(This API makes sure a global version of a function with a particular ** name and number of parameters exists. If no such function exists ** before this API is called, a new function is created.)^ ^The implementation ** of the new function always causes an exception to be thrown. So ** the new function is not good for anything by itself. Its only ** purpose is to be a placeholder function that can be overloaded ** by a [virtual table]. */ SQLITE_API int SQLITE_STDCALL sqlite3_overload_function(sqlite3*, const char *zFuncName, int nArg); /* ** The interface to the virtual-table mechanism defined above (back up ** to a comment remarkably similar to this one) is currently considered ** to be experimental. The interface might change in incompatible ways. ** If this is a problem for you, do not use the interface at this time. ** |
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5910 5911 5912 5913 5914 5915 5916 | ** ^The [sqlite3_bind_zeroblob()] and [sqlite3_result_zeroblob()] interfaces ** and the built-in [zeroblob] SQL function may be used to create a ** zero-filled blob to read or write using the incremental-blob interface. ** ** To avoid a resource leak, every open [BLOB handle] should eventually ** be released by a call to [sqlite3_blob_close()]. */ | | | 5981 5982 5983 5984 5985 5986 5987 5988 5989 5990 5991 5992 5993 5994 5995 | ** ^The [sqlite3_bind_zeroblob()] and [sqlite3_result_zeroblob()] interfaces ** and the built-in [zeroblob] SQL function may be used to create a ** zero-filled blob to read or write using the incremental-blob interface. ** ** To avoid a resource leak, every open [BLOB handle] should eventually ** be released by a call to [sqlite3_blob_close()]. */ SQLITE_API int SQLITE_STDCALL sqlite3_blob_open( sqlite3*, const char *zDb, const char *zTable, const char *zColumn, sqlite3_int64 iRow, int flags, sqlite3_blob **ppBlob |
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5942 5943 5944 5945 5946 5947 5948 | ** ^All subsequent calls to [sqlite3_blob_read()], [sqlite3_blob_write()] or ** [sqlite3_blob_reopen()] on an aborted blob handle immediately return ** SQLITE_ABORT. ^Calling [sqlite3_blob_bytes()] on an aborted blob handle ** always returns zero. ** ** ^This function sets the database handle error code and message. */ | | | 6013 6014 6015 6016 6017 6018 6019 6020 6021 6022 6023 6024 6025 6026 6027 | ** ^All subsequent calls to [sqlite3_blob_read()], [sqlite3_blob_write()] or ** [sqlite3_blob_reopen()] on an aborted blob handle immediately return ** SQLITE_ABORT. ^Calling [sqlite3_blob_bytes()] on an aborted blob handle ** always returns zero. ** ** ^This function sets the database handle error code and message. */ SQLITE_API SQLITE_EXPERIMENTAL int SQLITE_STDCALL sqlite3_blob_reopen(sqlite3_blob *, sqlite3_int64); /* ** CAPI3REF: Close A BLOB Handle ** ** ^This function closes an open [BLOB handle]. ^(The BLOB handle is closed ** unconditionally. Even if this routine returns an error code, the ** handle is still closed.)^ |
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5964 5965 5966 5967 5968 5969 5970 | ** Calling this function with an argument that is not a NULL pointer or an ** open blob handle results in undefined behaviour. ^Calling this routine ** with a null pointer (such as would be returned by a failed call to ** [sqlite3_blob_open()]) is a harmless no-op. ^Otherwise, if this function ** is passed a valid open blob handle, the values returned by the ** sqlite3_errcode() and sqlite3_errmsg() functions are set before returning. */ | | | | 6035 6036 6037 6038 6039 6040 6041 6042 6043 6044 6045 6046 6047 6048 6049 6050 6051 6052 6053 6054 6055 6056 6057 6058 6059 6060 6061 6062 6063 6064 | ** Calling this function with an argument that is not a NULL pointer or an ** open blob handle results in undefined behaviour. ^Calling this routine ** with a null pointer (such as would be returned by a failed call to ** [sqlite3_blob_open()]) is a harmless no-op. ^Otherwise, if this function ** is passed a valid open blob handle, the values returned by the ** sqlite3_errcode() and sqlite3_errmsg() functions are set before returning. */ SQLITE_API int SQLITE_STDCALL sqlite3_blob_close(sqlite3_blob *); /* ** CAPI3REF: Return The Size Of An Open BLOB ** ** ^Returns the size in bytes of the BLOB accessible via the ** successfully opened [BLOB handle] in its only argument. ^The ** incremental blob I/O routines can only read or overwriting existing ** blob content; they cannot change the size of a blob. ** ** This routine only works on a [BLOB handle] which has been created ** by a prior successful call to [sqlite3_blob_open()] and which has not ** been closed by [sqlite3_blob_close()]. Passing any other pointer in ** to this routine results in undefined and probably undesirable behavior. */ SQLITE_API int SQLITE_STDCALL sqlite3_blob_bytes(sqlite3_blob *); /* ** CAPI3REF: Read Data From A BLOB Incrementally ** ** ^(This function is used to read data from an open [BLOB handle] into a ** caller-supplied buffer. N bytes of data are copied into buffer Z ** from the open BLOB, starting at offset iOffset.)^ |
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6007 6008 6009 6010 6011 6012 6013 | ** This routine only works on a [BLOB handle] which has been created ** by a prior successful call to [sqlite3_blob_open()] and which has not ** been closed by [sqlite3_blob_close()]. Passing any other pointer in ** to this routine results in undefined and probably undesirable behavior. ** ** See also: [sqlite3_blob_write()]. */ | | | 6078 6079 6080 6081 6082 6083 6084 6085 6086 6087 6088 6089 6090 6091 6092 | ** This routine only works on a [BLOB handle] which has been created ** by a prior successful call to [sqlite3_blob_open()] and which has not ** been closed by [sqlite3_blob_close()]. Passing any other pointer in ** to this routine results in undefined and probably undesirable behavior. ** ** See also: [sqlite3_blob_write()]. */ SQLITE_API int SQLITE_STDCALL sqlite3_blob_read(sqlite3_blob *, void *Z, int N, int iOffset); /* ** CAPI3REF: Write Data Into A BLOB Incrementally ** ** ^(This function is used to write data into an open [BLOB handle] from a ** caller-supplied buffer. N bytes of data are copied from the buffer Z ** into the open BLOB, starting at offset iOffset.)^ |
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6048 6049 6050 6051 6052 6053 6054 | ** This routine only works on a [BLOB handle] which has been created ** by a prior successful call to [sqlite3_blob_open()] and which has not ** been closed by [sqlite3_blob_close()]. Passing any other pointer in ** to this routine results in undefined and probably undesirable behavior. ** ** See also: [sqlite3_blob_read()]. */ | | | 6119 6120 6121 6122 6123 6124 6125 6126 6127 6128 6129 6130 6131 6132 6133 | ** This routine only works on a [BLOB handle] which has been created ** by a prior successful call to [sqlite3_blob_open()] and which has not ** been closed by [sqlite3_blob_close()]. Passing any other pointer in ** to this routine results in undefined and probably undesirable behavior. ** ** See also: [sqlite3_blob_read()]. */ SQLITE_API int SQLITE_STDCALL sqlite3_blob_write(sqlite3_blob *, const void *z, int n, int iOffset); /* ** CAPI3REF: Virtual File System Objects ** ** A virtual filesystem (VFS) is an [sqlite3_vfs] object ** that SQLite uses to interact ** with the underlying operating system. Most SQLite builds come with a |
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6079 6080 6081 6082 6083 6084 6085 | ** VFS is registered with a name that is NULL or an empty string, ** then the behavior is undefined. ** ** ^Unregister a VFS with the sqlite3_vfs_unregister() interface. ** ^(If the default VFS is unregistered, another VFS is chosen as ** the default. The choice for the new VFS is arbitrary.)^ */ | | | | | 6150 6151 6152 6153 6154 6155 6156 6157 6158 6159 6160 6161 6162 6163 6164 6165 6166 | ** VFS is registered with a name that is NULL or an empty string, ** then the behavior is undefined. ** ** ^Unregister a VFS with the sqlite3_vfs_unregister() interface. ** ^(If the default VFS is unregistered, another VFS is chosen as ** the default. The choice for the new VFS is arbitrary.)^ */ SQLITE_API sqlite3_vfs *SQLITE_STDCALL sqlite3_vfs_find(const char *zVfsName); SQLITE_API int SQLITE_STDCALL sqlite3_vfs_register(sqlite3_vfs*, int makeDflt); SQLITE_API int SQLITE_STDCALL sqlite3_vfs_unregister(sqlite3_vfs*); /* ** CAPI3REF: Mutexes ** ** The SQLite core uses these routines for thread ** synchronization. Though they are intended for internal ** use by SQLite, code that links against SQLite is |
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6194 6195 6196 6197 6198 6199 6200 | ** ** ^If the argument to sqlite3_mutex_enter(), sqlite3_mutex_try(), or ** sqlite3_mutex_leave() is a NULL pointer, then all three routines ** behave as no-ops. ** ** See also: [sqlite3_mutex_held()] and [sqlite3_mutex_notheld()]. */ | | | | | | | 6265 6266 6267 6268 6269 6270 6271 6272 6273 6274 6275 6276 6277 6278 6279 6280 6281 6282 6283 | ** ** ^If the argument to sqlite3_mutex_enter(), sqlite3_mutex_try(), or ** sqlite3_mutex_leave() is a NULL pointer, then all three routines ** behave as no-ops. ** ** See also: [sqlite3_mutex_held()] and [sqlite3_mutex_notheld()]. */ SQLITE_API sqlite3_mutex *SQLITE_STDCALL sqlite3_mutex_alloc(int); SQLITE_API void SQLITE_STDCALL sqlite3_mutex_free(sqlite3_mutex*); SQLITE_API void SQLITE_STDCALL sqlite3_mutex_enter(sqlite3_mutex*); SQLITE_API int SQLITE_STDCALL sqlite3_mutex_try(sqlite3_mutex*); SQLITE_API void SQLITE_STDCALL sqlite3_mutex_leave(sqlite3_mutex*); /* ** CAPI3REF: Mutex Methods Object ** ** An instance of this structure defines the low-level routines ** used to allocate and use mutexes. ** |
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6308 6309 6310 6311 6312 6313 6314 | ** the reason the mutex does not exist is because the build is not ** using mutexes. And we do not want the assert() containing the ** call to sqlite3_mutex_held() to fail, so a non-zero return is ** the appropriate thing to do. The sqlite3_mutex_notheld() ** interface should also return 1 when given a NULL pointer. */ #ifndef NDEBUG | | | | 6379 6380 6381 6382 6383 6384 6385 6386 6387 6388 6389 6390 6391 6392 6393 6394 | ** the reason the mutex does not exist is because the build is not ** using mutexes. And we do not want the assert() containing the ** call to sqlite3_mutex_held() to fail, so a non-zero return is ** the appropriate thing to do. The sqlite3_mutex_notheld() ** interface should also return 1 when given a NULL pointer. */ #ifndef NDEBUG SQLITE_API int SQLITE_STDCALL sqlite3_mutex_held(sqlite3_mutex*); SQLITE_API int SQLITE_STDCALL sqlite3_mutex_notheld(sqlite3_mutex*); #endif /* ** CAPI3REF: Mutex Types ** ** The [sqlite3_mutex_alloc()] interface takes a single argument ** which is one of these integer constants. |
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6345 6346 6347 6348 6349 6350 6351 | ** ** ^This interface returns a pointer the [sqlite3_mutex] object that ** serializes access to the [database connection] given in the argument ** when the [threading mode] is Serialized. ** ^If the [threading mode] is Single-thread or Multi-thread then this ** routine returns a NULL pointer. */ | | | 6416 6417 6418 6419 6420 6421 6422 6423 6424 6425 6426 6427 6428 6429 6430 | ** ** ^This interface returns a pointer the [sqlite3_mutex] object that ** serializes access to the [database connection] given in the argument ** when the [threading mode] is Serialized. ** ^If the [threading mode] is Single-thread or Multi-thread then this ** routine returns a NULL pointer. */ SQLITE_API sqlite3_mutex *SQLITE_STDCALL sqlite3_db_mutex(sqlite3*); /* ** CAPI3REF: Low-Level Control Of Database Files ** ** ^The [sqlite3_file_control()] interface makes a direct call to the ** xFileControl method for the [sqlite3_io_methods] object associated ** with a particular database identified by the second argument. ^The |
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6379 6380 6381 6382 6383 6384 6385 | ** or [sqlite3_errmsg()]. The underlying xFileControl method might ** also return SQLITE_ERROR. There is no way to distinguish between ** an incorrect zDbName and an SQLITE_ERROR return from the underlying ** xFileControl method. ** ** See also: [SQLITE_FCNTL_LOCKSTATE] */ | | | | 6450 6451 6452 6453 6454 6455 6456 6457 6458 6459 6460 6461 6462 6463 6464 6465 6466 6467 6468 6469 6470 6471 6472 6473 6474 6475 6476 6477 6478 6479 6480 6481 6482 6483 | ** or [sqlite3_errmsg()]. The underlying xFileControl method might ** also return SQLITE_ERROR. There is no way to distinguish between ** an incorrect zDbName and an SQLITE_ERROR return from the underlying ** xFileControl method. ** ** See also: [SQLITE_FCNTL_LOCKSTATE] */ SQLITE_API int SQLITE_STDCALL sqlite3_file_control(sqlite3*, const char *zDbName, int op, void*); /* ** CAPI3REF: Testing Interface ** ** ^The sqlite3_test_control() interface is used to read out internal ** state of SQLite and to inject faults into SQLite for testing ** purposes. ^The first parameter is an operation code that determines ** the number, meaning, and operation of all subsequent parameters. ** ** This interface is not for use by applications. It exists solely ** for verifying the correct operation of the SQLite library. Depending ** on how the SQLite library is compiled, this interface might not exist. ** ** The details of the operation codes, their meanings, the parameters ** they take, and what they do are all subject to change without notice. ** Unlike most of the SQLite API, this function is not guaranteed to ** operate consistently from one release to the next. */ SQLITE_API int SQLITE_CDECL sqlite3_test_control(int op, ...); /* ** CAPI3REF: Testing Interface Operation Codes ** ** These constants are the valid operation code parameters used ** as the first argument to [sqlite3_test_control()]. ** |
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6432 6433 6434 6435 6436 6437 6438 | #define SQLITE_TESTCTRL_LOCALTIME_FAULT 18 #define SQLITE_TESTCTRL_EXPLAIN_STMT 19 /* NOT USED */ #define SQLITE_TESTCTRL_NEVER_CORRUPT 20 #define SQLITE_TESTCTRL_VDBE_COVERAGE 21 #define SQLITE_TESTCTRL_BYTEORDER 22 #define SQLITE_TESTCTRL_ISINIT 23 #define SQLITE_TESTCTRL_SORTER_MMAP 24 | > | | | | < | | < < < > | > > > > > > | 6503 6504 6505 6506 6507 6508 6509 6510 6511 6512 6513 6514 6515 6516 6517 6518 6519 6520 6521 6522 6523 6524 6525 6526 6527 6528 6529 6530 6531 6532 6533 6534 6535 6536 6537 6538 6539 6540 6541 6542 6543 6544 6545 6546 6547 6548 6549 6550 6551 6552 | #define SQLITE_TESTCTRL_LOCALTIME_FAULT 18 #define SQLITE_TESTCTRL_EXPLAIN_STMT 19 /* NOT USED */ #define SQLITE_TESTCTRL_NEVER_CORRUPT 20 #define SQLITE_TESTCTRL_VDBE_COVERAGE 21 #define SQLITE_TESTCTRL_BYTEORDER 22 #define SQLITE_TESTCTRL_ISINIT 23 #define SQLITE_TESTCTRL_SORTER_MMAP 24 #define SQLITE_TESTCTRL_IMPOSTER 25 #define SQLITE_TESTCTRL_LAST 25 /* ** CAPI3REF: SQLite Runtime Status ** ** ^These interfaces are used to retrieve runtime status information ** about the performance of SQLite, and optionally to reset various ** highwater marks. ^The first argument is an integer code for ** the specific parameter to measure. ^(Recognized integer codes ** are of the form [status parameters | SQLITE_STATUS_...].)^ ** ^The current value of the parameter is returned into *pCurrent. ** ^The highest recorded value is returned in *pHighwater. ^If the ** resetFlag is true, then the highest record value is reset after ** *pHighwater is written. ^(Some parameters do not record the highest ** value. For those parameters ** nothing is written into *pHighwater and the resetFlag is ignored.)^ ** ^(Other parameters record only the highwater mark and not the current ** value. For these latter parameters nothing is written into *pCurrent.)^ ** ** ^The sqlite3_status() and sqlite3_status64() routines return ** SQLITE_OK on success and a non-zero [error code] on failure. ** ** If either the current value or the highwater mark is too large to ** be represented by a 32-bit integer, then the values returned by ** sqlite3_status() are undefined. ** ** See also: [sqlite3_db_status()] */ SQLITE_API int SQLITE_STDCALL sqlite3_status(int op, int *pCurrent, int *pHighwater, int resetFlag); SQLITE_API int SQLITE_STDCALL sqlite3_status64( int op, sqlite3_int64 *pCurrent, sqlite3_int64 *pHighwater, int resetFlag ); /* ** CAPI3REF: Status Parameters ** KEYWORDS: {status parameters} ** ** These integer constants designate various run-time status parameters |
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6581 6582 6583 6584 6585 6586 6587 | ** reset back down to the current value. ** ** ^The sqlite3_db_status() routine returns SQLITE_OK on success and a ** non-zero [error code] on failure. ** ** See also: [sqlite3_status()] and [sqlite3_stmt_status()]. */ | | | 6656 6657 6658 6659 6660 6661 6662 6663 6664 6665 6666 6667 6668 6669 6670 | ** reset back down to the current value. ** ** ^The sqlite3_db_status() routine returns SQLITE_OK on success and a ** non-zero [error code] on failure. ** ** See also: [sqlite3_status()] and [sqlite3_stmt_status()]. */ SQLITE_API int SQLITE_STDCALL sqlite3_db_status(sqlite3*, int op, int *pCur, int *pHiwtr, int resetFlg); /* ** CAPI3REF: Status Parameters for database connections ** KEYWORDS: {SQLITE_DBSTATUS options} ** ** These constants are the available integer "verbs" that can be passed as ** the second argument to the [sqlite3_db_status()] interface. |
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6710 6711 6712 6713 6714 6715 6716 | ** to be interrogated.)^ ** ^The current value of the requested counter is returned. ** ^If the resetFlg is true, then the counter is reset to zero after this ** interface call returns. ** ** See also: [sqlite3_status()] and [sqlite3_db_status()]. */ | | | 6785 6786 6787 6788 6789 6790 6791 6792 6793 6794 6795 6796 6797 6798 6799 | ** to be interrogated.)^ ** ^The current value of the requested counter is returned. ** ^If the resetFlg is true, then the counter is reset to zero after this ** interface call returns. ** ** See also: [sqlite3_status()] and [sqlite3_db_status()]. */ SQLITE_API int SQLITE_STDCALL sqlite3_stmt_status(sqlite3_stmt*, int op,int resetFlg); /* ** CAPI3REF: Status Parameters for prepared statements ** KEYWORDS: {SQLITE_STMTSTATUS counter} {SQLITE_STMTSTATUS counters} ** ** These preprocessor macros define integer codes that name counter ** values associated with the [sqlite3_stmt_status()] interface. |
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7133 7134 7135 7136 7137 7138 7139 | ** sqlite3_backup_step() call on the same [sqlite3_backup] object, then ** sqlite3_backup_finish() returns the corresponding [error code]. ** ** ^A return of [SQLITE_BUSY] or [SQLITE_LOCKED] from sqlite3_backup_step() ** is not a permanent error and does not affect the return value of ** sqlite3_backup_finish(). ** | | > | | | | < < | | < | > > | | 7208 7209 7210 7211 7212 7213 7214 7215 7216 7217 7218 7219 7220 7221 7222 7223 7224 7225 7226 7227 7228 7229 7230 7231 7232 7233 7234 7235 | ** sqlite3_backup_step() call on the same [sqlite3_backup] object, then ** sqlite3_backup_finish() returns the corresponding [error code]. ** ** ^A return of [SQLITE_BUSY] or [SQLITE_LOCKED] from sqlite3_backup_step() ** is not a permanent error and does not affect the return value of ** sqlite3_backup_finish(). ** ** [[sqlite3_backup_remaining()]] [[sqlite3_backup_pagecount()]] ** <b>sqlite3_backup_remaining() and sqlite3_backup_pagecount()</b> ** ** ^The sqlite3_backup_remaining() routine returns the number of pages still ** to be backed up at the conclusion of the most recent sqlite3_backup_step(). ** ^The sqlite3_backup_pagecount() routine returns the total number of pages ** in the source database at the conclusion of the most recent ** sqlite3_backup_step(). ** ^(The values returned by these functions are only updated by ** sqlite3_backup_step(). If the source database is modified in a way that ** changes the size of the source database or the number of pages remaining, ** those changes are not reflected in the output of sqlite3_backup_pagecount() ** and sqlite3_backup_remaining() until after the next ** sqlite3_backup_step().)^ ** ** <b>Concurrent Usage of Database Handles</b> ** ** ^The source [database connection] may be used by the application for other ** purposes while a backup operation is underway or being initialized. ** ^If SQLite is compiled and configured to support threadsafe database ** connections, then the source database connection may be used concurrently |
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7179 7180 7181 7182 7183 7184 7185 | ** The [sqlite3_backup] object itself is partially threadsafe. Multiple ** threads may safely make multiple concurrent calls to sqlite3_backup_step(). ** However, the sqlite3_backup_remaining() and sqlite3_backup_pagecount() ** APIs are not strictly speaking threadsafe. If they are invoked at the ** same time as another thread is invoking sqlite3_backup_step() it is ** possible that they return invalid values. */ | | | | | | | 7254 7255 7256 7257 7258 7259 7260 7261 7262 7263 7264 7265 7266 7267 7268 7269 7270 7271 7272 7273 7274 7275 7276 7277 | ** The [sqlite3_backup] object itself is partially threadsafe. Multiple ** threads may safely make multiple concurrent calls to sqlite3_backup_step(). ** However, the sqlite3_backup_remaining() and sqlite3_backup_pagecount() ** APIs are not strictly speaking threadsafe. If they are invoked at the ** same time as another thread is invoking sqlite3_backup_step() it is ** possible that they return invalid values. */ SQLITE_API sqlite3_backup *SQLITE_STDCALL sqlite3_backup_init( sqlite3 *pDest, /* Destination database handle */ const char *zDestName, /* Destination database name */ sqlite3 *pSource, /* Source database handle */ const char *zSourceName /* Source database name */ ); SQLITE_API int SQLITE_STDCALL sqlite3_backup_step(sqlite3_backup *p, int nPage); SQLITE_API int SQLITE_STDCALL sqlite3_backup_finish(sqlite3_backup *p); SQLITE_API int SQLITE_STDCALL sqlite3_backup_remaining(sqlite3_backup *p); SQLITE_API int SQLITE_STDCALL sqlite3_backup_pagecount(sqlite3_backup *p); /* ** CAPI3REF: Unlock Notification ** ** ^When running in shared-cache mode, a database operation may fail with ** an [SQLITE_LOCKED] error if the required locks on the shared-cache or ** individual tables within the shared-cache cannot be obtained. See |
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7304 7305 7306 7307 7308 7309 7310 | ** ** One way around this problem is to check the extended error code returned ** by an sqlite3_step() call. ^(If there is a blocking connection, then the ** extended error code is set to SQLITE_LOCKED_SHAREDCACHE. Otherwise, in ** the special "DROP TABLE/INDEX" case, the extended error code is just ** SQLITE_LOCKED.)^ */ | | | | | | 7379 7380 7381 7382 7383 7384 7385 7386 7387 7388 7389 7390 7391 7392 7393 7394 7395 7396 7397 7398 7399 7400 7401 7402 7403 7404 7405 7406 7407 7408 7409 7410 7411 7412 7413 7414 7415 7416 7417 7418 7419 7420 7421 7422 7423 7424 | ** ** One way around this problem is to check the extended error code returned ** by an sqlite3_step() call. ^(If there is a blocking connection, then the ** extended error code is set to SQLITE_LOCKED_SHAREDCACHE. Otherwise, in ** the special "DROP TABLE/INDEX" case, the extended error code is just ** SQLITE_LOCKED.)^ */ SQLITE_API int SQLITE_STDCALL sqlite3_unlock_notify( sqlite3 *pBlocked, /* Waiting connection */ void (*xNotify)(void **apArg, int nArg), /* Callback function to invoke */ void *pNotifyArg /* Argument to pass to xNotify */ ); /* ** CAPI3REF: String Comparison ** ** ^The [sqlite3_stricmp()] and [sqlite3_strnicmp()] APIs allow applications ** and extensions to compare the contents of two buffers containing UTF-8 ** strings in a case-independent fashion, using the same definition of "case ** independence" that SQLite uses internally when comparing identifiers. */ SQLITE_API int SQLITE_STDCALL sqlite3_stricmp(const char *, const char *); SQLITE_API int SQLITE_STDCALL sqlite3_strnicmp(const char *, const char *, int); /* ** CAPI3REF: String Globbing * ** ^The [sqlite3_strglob(P,X)] interface returns zero if string X matches ** the glob pattern P, and it returns non-zero if string X does not match ** the glob pattern P. ^The definition of glob pattern matching used in ** [sqlite3_strglob(P,X)] is the same as for the "X GLOB P" operator in the ** SQL dialect used by SQLite. ^The sqlite3_strglob(P,X) function is case ** sensitive. ** ** Note that this routine returns zero on a match and non-zero if the strings ** do not match, the same as [sqlite3_stricmp()] and [sqlite3_strnicmp()]. */ SQLITE_API int SQLITE_STDCALL sqlite3_strglob(const char *zGlob, const char *zStr); /* ** CAPI3REF: Error Logging Interface ** ** ^The [sqlite3_log()] interface writes a message into the [error log] ** established by the [SQLITE_CONFIG_LOG] option to [sqlite3_config()]. ** ^If logging is enabled, the zFormat string and subsequent arguments are |
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7358 7359 7360 7361 7362 7363 7364 | ** ** To avoid deadlocks and other threading problems, the sqlite3_log() routine ** will not use dynamically allocated memory. The log message is stored in ** a fixed-length buffer on the stack. If the log message is longer than ** a few hundred characters, it will be truncated to the length of the ** buffer. */ | | | 7433 7434 7435 7436 7437 7438 7439 7440 7441 7442 7443 7444 7445 7446 7447 | ** ** To avoid deadlocks and other threading problems, the sqlite3_log() routine ** will not use dynamically allocated memory. The log message is stored in ** a fixed-length buffer on the stack. If the log message is longer than ** a few hundred characters, it will be truncated to the length of the ** buffer. */ SQLITE_API void SQLITE_CDECL sqlite3_log(int iErrCode, const char *zFormat, ...); /* ** CAPI3REF: Write-Ahead Log Commit Hook ** ** ^The [sqlite3_wal_hook()] function is used to register a callback that ** is invoked each time data is committed to a database in wal mode. ** |
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7393 7394 7395 7396 7397 7398 7399 | ** A single database handle may have at most a single write-ahead log callback ** registered at one time. ^Calling [sqlite3_wal_hook()] replaces any ** previously registered write-ahead log callback. ^Note that the ** [sqlite3_wal_autocheckpoint()] interface and the ** [wal_autocheckpoint pragma] both invoke [sqlite3_wal_hook()] and will ** those overwrite any prior [sqlite3_wal_hook()] settings. */ | | | 7468 7469 7470 7471 7472 7473 7474 7475 7476 7477 7478 7479 7480 7481 7482 | ** A single database handle may have at most a single write-ahead log callback ** registered at one time. ^Calling [sqlite3_wal_hook()] replaces any ** previously registered write-ahead log callback. ^Note that the ** [sqlite3_wal_autocheckpoint()] interface and the ** [wal_autocheckpoint pragma] both invoke [sqlite3_wal_hook()] and will ** those overwrite any prior [sqlite3_wal_hook()] settings. */ SQLITE_API void *SQLITE_STDCALL sqlite3_wal_hook( sqlite3*, int(*)(void *,sqlite3*,const char*,int), void* ); /* ** CAPI3REF: Configure an auto-checkpoint |
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7427 7428 7429 7430 7431 7432 7433 | ** ** ^Every new [database connection] defaults to having the auto-checkpoint ** enabled with a threshold of 1000 or [SQLITE_DEFAULT_WAL_AUTOCHECKPOINT] ** pages. The use of this interface ** is only necessary if the default setting is found to be suboptimal ** for a particular application. */ | | | | 7502 7503 7504 7505 7506 7507 7508 7509 7510 7511 7512 7513 7514 7515 7516 7517 7518 7519 7520 7521 7522 7523 7524 7525 7526 7527 7528 7529 7530 7531 7532 7533 7534 7535 7536 7537 | ** ** ^Every new [database connection] defaults to having the auto-checkpoint ** enabled with a threshold of 1000 or [SQLITE_DEFAULT_WAL_AUTOCHECKPOINT] ** pages. The use of this interface ** is only necessary if the default setting is found to be suboptimal ** for a particular application. */ SQLITE_API int SQLITE_STDCALL sqlite3_wal_autocheckpoint(sqlite3 *db, int N); /* ** CAPI3REF: Checkpoint a database ** ** ^(The sqlite3_wal_checkpoint(D,X) is equivalent to ** [sqlite3_wal_checkpoint_v2](D,X,[SQLITE_CHECKPOINT_PASSIVE],0,0).)^ ** ** In brief, sqlite3_wal_checkpoint(D,X) causes the content in the ** [write-ahead log] for database X on [database connection] D to be ** transferred into the database file and for the write-ahead log to ** be reset. See the [checkpointing] documentation for addition ** information. ** ** This interface used to be the only way to cause a checkpoint to ** occur. But then the newer and more powerful [sqlite3_wal_checkpoint_v2()] ** interface was added. This interface is retained for backwards ** compatibility and as a convenience for applications that need to manually ** start a callback but which do not need the full power (and corresponding ** complication) of [sqlite3_wal_checkpoint_v2()]. */ SQLITE_API int SQLITE_STDCALL sqlite3_wal_checkpoint(sqlite3 *db, const char *zDb); /* ** CAPI3REF: Checkpoint a database ** ** ^(The sqlite3_wal_checkpoint_v2(D,X,M,L,C) interface runs a checkpoint ** operation on database X of [database connection] D in mode M. Status ** information is written back into integers pointed to by L and C.)^ |
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7541 7542 7543 7544 7545 7546 7547 | ** the sqlite3_wal_checkpoint_v2() interface ** sets the error information that is queried by ** [sqlite3_errcode()] and [sqlite3_errmsg()]. ** ** ^The [PRAGMA wal_checkpoint] command can be used to invoke this interface ** from SQL. */ | | | 7616 7617 7618 7619 7620 7621 7622 7623 7624 7625 7626 7627 7628 7629 7630 | ** the sqlite3_wal_checkpoint_v2() interface ** sets the error information that is queried by ** [sqlite3_errcode()] and [sqlite3_errmsg()]. ** ** ^The [PRAGMA wal_checkpoint] command can be used to invoke this interface ** from SQL. */ SQLITE_API int SQLITE_STDCALL sqlite3_wal_checkpoint_v2( sqlite3 *db, /* Database handle */ const char *zDb, /* Name of attached database (or NULL) */ int eMode, /* SQLITE_CHECKPOINT_* value */ int *pnLog, /* OUT: Size of WAL log in frames */ int *pnCkpt /* OUT: Total number of frames checkpointed */ ); |
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7577 7578 7579 7580 7581 7582 7583 | ** If this interface is invoked outside the context of an xConnect or ** xCreate virtual table method then the behavior is undefined. ** ** At present, there is only one option that may be configured using ** this function. (See [SQLITE_VTAB_CONSTRAINT_SUPPORT].) Further options ** may be added in the future. */ | | | 7652 7653 7654 7655 7656 7657 7658 7659 7660 7661 7662 7663 7664 7665 7666 | ** If this interface is invoked outside the context of an xConnect or ** xCreate virtual table method then the behavior is undefined. ** ** At present, there is only one option that may be configured using ** this function. (See [SQLITE_VTAB_CONSTRAINT_SUPPORT].) Further options ** may be added in the future. */ SQLITE_API int SQLITE_CDECL sqlite3_vtab_config(sqlite3*, int op, ...); /* ** CAPI3REF: Virtual Table Configuration Options ** ** These macros define the various options to the ** [sqlite3_vtab_config()] interface that [virtual table] implementations ** can use to customize and optimize their behavior. |
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7630 7631 7632 7633 7634 7635 7636 | ** This function may only be called from within a call to the [xUpdate] method ** of a [virtual table] implementation for an INSERT or UPDATE operation. ^The ** value returned is one of [SQLITE_ROLLBACK], [SQLITE_IGNORE], [SQLITE_FAIL], ** [SQLITE_ABORT], or [SQLITE_REPLACE], according to the [ON CONFLICT] mode ** of the SQL statement that triggered the call to the [xUpdate] method of the ** [virtual table]. */ | | | 7705 7706 7707 7708 7709 7710 7711 7712 7713 7714 7715 7716 7717 7718 7719 | ** This function may only be called from within a call to the [xUpdate] method ** of a [virtual table] implementation for an INSERT or UPDATE operation. ^The ** value returned is one of [SQLITE_ROLLBACK], [SQLITE_IGNORE], [SQLITE_FAIL], ** [SQLITE_ABORT], or [SQLITE_REPLACE], according to the [ON CONFLICT] mode ** of the SQL statement that triggered the call to the [xUpdate] method of the ** [virtual table]. */ SQLITE_API int SQLITE_STDCALL sqlite3_vtab_on_conflict(sqlite3 *); /* ** CAPI3REF: Conflict resolution modes ** KEYWORDS: {conflict resolution mode} ** ** These constants are returned by [sqlite3_vtab_on_conflict()] to ** inform a [virtual table] implementation what the [ON CONFLICT] mode |
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7734 7735 7736 7737 7738 7739 7740 | ** ^Statistics might not be available for all loops in all statements. ^In cases ** where there exist loops with no available statistics, this function behaves ** as if the loop did not exist - it returns non-zero and leave the variable ** that pOut points to unchanged. ** ** See also: [sqlite3_stmt_scanstatus_reset()] */ | | | | 7809 7810 7811 7812 7813 7814 7815 7816 7817 7818 7819 7820 7821 7822 7823 7824 7825 7826 7827 7828 7829 7830 7831 7832 7833 7834 7835 7836 7837 7838 | ** ^Statistics might not be available for all loops in all statements. ^In cases ** where there exist loops with no available statistics, this function behaves ** as if the loop did not exist - it returns non-zero and leave the variable ** that pOut points to unchanged. ** ** See also: [sqlite3_stmt_scanstatus_reset()] */ SQLITE_API SQLITE_EXPERIMENTAL int SQLITE_STDCALL sqlite3_stmt_scanstatus( sqlite3_stmt *pStmt, /* Prepared statement for which info desired */ int idx, /* Index of loop to report on */ int iScanStatusOp, /* Information desired. SQLITE_SCANSTAT_* */ void *pOut /* Result written here */ ); /* ** CAPI3REF: Zero Scan-Status Counters ** ** ^Zero all [sqlite3_stmt_scanstatus()] related event counters. ** ** This API is only available if the library is built with pre-processor ** symbol [SQLITE_ENABLE_STMT_SCANSTATUS] defined. */ SQLITE_API SQLITE_EXPERIMENTAL void SQLITE_STDCALL sqlite3_stmt_scanstatus_reset(sqlite3_stmt*); /* ** Undo the hack that converts floating point types to integer for ** builds on processors without floating point support. */ #ifdef SQLITE_OMIT_FLOATING_POINT |
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7804 7805 7806 7807 7808 7809 7810 | /* ** Register a geometry callback named zGeom that can be used as part of an ** R-Tree geometry query as follows: ** ** SELECT ... FROM <rtree> WHERE <rtree col> MATCH $zGeom(... params ...) */ | | | 7879 7880 7881 7882 7883 7884 7885 7886 7887 7888 7889 7890 7891 7892 7893 | /* ** Register a geometry callback named zGeom that can be used as part of an ** R-Tree geometry query as follows: ** ** SELECT ... FROM <rtree> WHERE <rtree col> MATCH $zGeom(... params ...) */ SQLITE_API int SQLITE_STDCALL sqlite3_rtree_geometry_callback( sqlite3 *db, const char *zGeom, int (*xGeom)(sqlite3_rtree_geometry*, int, sqlite3_rtree_dbl*,int*), void *pContext ); |
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7830 7831 7832 7833 7834 7835 7836 | /* ** Register a 2nd-generation geometry callback named zScore that can be ** used as part of an R-Tree geometry query as follows: ** ** SELECT ... FROM <rtree> WHERE <rtree col> MATCH $zQueryFunc(... params ...) */ | | | 7905 7906 7907 7908 7909 7910 7911 7912 7913 7914 7915 7916 7917 7918 7919 | /* ** Register a 2nd-generation geometry callback named zScore that can be ** used as part of an R-Tree geometry query as follows: ** ** SELECT ... FROM <rtree> WHERE <rtree col> MATCH $zQueryFunc(... params ...) */ SQLITE_API int SQLITE_STDCALL sqlite3_rtree_query_callback( sqlite3 *db, const char *zQueryFunc, int (*xQueryFunc)(sqlite3_rtree_query_info*), void *pContext, void (*xDestructor)(void*) ); |
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7994 7995 7996 7997 7998 7999 8000 | ** The maximum number of arguments to an SQL function. */ #ifndef SQLITE_MAX_FUNCTION_ARG # define SQLITE_MAX_FUNCTION_ARG 127 #endif /* | | | > > > > > < < < | 8069 8070 8071 8072 8073 8074 8075 8076 8077 8078 8079 8080 8081 8082 8083 8084 8085 8086 8087 8088 8089 8090 8091 8092 8093 | ** The maximum number of arguments to an SQL function. */ #ifndef SQLITE_MAX_FUNCTION_ARG # define SQLITE_MAX_FUNCTION_ARG 127 #endif /* ** The suggested maximum number of in-memory pages to use for ** the main database table and for temporary tables. ** ** IMPLEMENTATION-OF: R-31093-59126 The default suggested cache size ** is 2000 pages. ** IMPLEMENTATION-OF: R-48205-43578 The default suggested cache size can be ** altered using the SQLITE_DEFAULT_CACHE_SIZE compile-time options. */ #ifndef SQLITE_DEFAULT_CACHE_SIZE # define SQLITE_DEFAULT_CACHE_SIZE 2000 #endif /* ** The default number of frames to accumulate in the log file before ** checkpointing the database in WAL mode. */ #ifndef SQLITE_DEFAULT_WAL_AUTOCHECKPOINT # define SQLITE_DEFAULT_WAL_AUTOCHECKPOINT 1000 |
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8846 8847 8848 8849 8850 8851 8852 8853 8854 8855 8856 8857 8858 8859 | ** The LogEst can be negative to indicate fractional values. ** Examples: ** ** 0.5 -> -10 0.1 -> -33 0.0625 -> -40 */ typedef INT16_TYPE LogEst; /* ** Macros to determine whether the machine is big or little endian, ** and whether or not that determination is run-time or compile-time. ** ** For best performance, an attempt is made to guess at the byte-order ** using C-preprocessor macros. If that is unsuccessful, or if ** -DSQLITE_RUNTIME_BYTEORDER=1 is set, then byte-order is determined | > > > > > > > > > > > > > > | 8923 8924 8925 8926 8927 8928 8929 8930 8931 8932 8933 8934 8935 8936 8937 8938 8939 8940 8941 8942 8943 8944 8945 8946 8947 8948 8949 8950 | ** The LogEst can be negative to indicate fractional values. ** Examples: ** ** 0.5 -> -10 0.1 -> -33 0.0625 -> -40 */ typedef INT16_TYPE LogEst; /* ** Set the SQLITE_PTRSIZE macro to the number of bytes in a pointer */ #ifndef SQLITE_PTRSIZE # if defined(__SIZEOF_POINTER__) # define SQLITE_PTRSIZE __SIZEOF_POINTER__ # elif defined(i386) || defined(__i386__) || defined(_M_IX86) || \ defined(_M_ARM) || defined(__arm__) || defined(__x86) # define SQLITE_PTRSIZE 4 # else # define SQLITE_PTRSIZE 8 # endif #endif /* ** Macros to determine whether the machine is big or little endian, ** and whether or not that determination is run-time or compile-time. ** ** For best performance, an attempt is made to guess at the byte-order ** using C-preprocessor macros. If that is unsuccessful, or if ** -DSQLITE_RUNTIME_BYTEORDER=1 is set, then byte-order is determined |
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9058 9059 9060 9061 9062 9063 9064 | ** In the usual case where WSD is supported, the SQLITE_WSD and GLOBAL ** macros become no-ops and have zero performance impact. */ #ifdef SQLITE_OMIT_WSD #define SQLITE_WSD const #define GLOBAL(t,v) (*(t*)sqlite3_wsd_find((void*)&(v), sizeof(v))) #define sqlite3GlobalConfig GLOBAL(struct Sqlite3Config, sqlite3Config) | | | | 9149 9150 9151 9152 9153 9154 9155 9156 9157 9158 9159 9160 9161 9162 9163 9164 | ** In the usual case where WSD is supported, the SQLITE_WSD and GLOBAL ** macros become no-ops and have zero performance impact. */ #ifdef SQLITE_OMIT_WSD #define SQLITE_WSD const #define GLOBAL(t,v) (*(t*)sqlite3_wsd_find((void*)&(v), sizeof(v))) #define sqlite3GlobalConfig GLOBAL(struct Sqlite3Config, sqlite3Config) SQLITE_API int SQLITE_STDCALL sqlite3_wsd_init(int N, int J); SQLITE_API void *SQLITE_STDCALL sqlite3_wsd_find(void *K, int L); #else #define SQLITE_WSD #define GLOBAL(t,v) v #define sqlite3GlobalConfig sqlite3Config #endif /* |
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9217 9218 9219 9220 9221 9222 9223 | SQLITE_PRIVATE int sqlite3BtreeSetPagerFlags(Btree*,unsigned); SQLITE_PRIVATE int sqlite3BtreeSyncDisabled(Btree*); SQLITE_PRIVATE int sqlite3BtreeSetPageSize(Btree *p, int nPagesize, int nReserve, int eFix); SQLITE_PRIVATE int sqlite3BtreeGetPageSize(Btree*); SQLITE_PRIVATE int sqlite3BtreeMaxPageCount(Btree*,int); SQLITE_PRIVATE u32 sqlite3BtreeLastPage(Btree*); SQLITE_PRIVATE int sqlite3BtreeSecureDelete(Btree*,int); | | < < | 9308 9309 9310 9311 9312 9313 9314 9315 9316 9317 9318 9319 9320 9321 9322 9323 | SQLITE_PRIVATE int sqlite3BtreeSetPagerFlags(Btree*,unsigned); SQLITE_PRIVATE int sqlite3BtreeSyncDisabled(Btree*); SQLITE_PRIVATE int sqlite3BtreeSetPageSize(Btree *p, int nPagesize, int nReserve, int eFix); SQLITE_PRIVATE int sqlite3BtreeGetPageSize(Btree*); SQLITE_PRIVATE int sqlite3BtreeMaxPageCount(Btree*,int); SQLITE_PRIVATE u32 sqlite3BtreeLastPage(Btree*); SQLITE_PRIVATE int sqlite3BtreeSecureDelete(Btree*,int); SQLITE_PRIVATE int sqlite3BtreeGetOptimalReserve(Btree*); SQLITE_PRIVATE int sqlite3BtreeGetReserveNoMutex(Btree *p); SQLITE_PRIVATE int sqlite3BtreeSetAutoVacuum(Btree *, int); SQLITE_PRIVATE int sqlite3BtreeGetAutoVacuum(Btree *); SQLITE_PRIVATE int sqlite3BtreeBeginTrans(Btree*,int); SQLITE_PRIVATE int sqlite3BtreeCommitPhaseOne(Btree*, const char *zMaster); SQLITE_PRIVATE int sqlite3BtreeCommitPhaseTwo(Btree*, int); SQLITE_PRIVATE int sqlite3BtreeCommit(Btree*); SQLITE_PRIVATE int sqlite3BtreeRollback(Btree*,int,int); |
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9298 9299 9300 9301 9302 9303 9304 9305 | #define BTREE_INCR_VACUUM 7 #define BTREE_APPLICATION_ID 8 #define BTREE_DATA_VERSION 15 /* A virtual meta-value */ /* ** Values that may be OR'd together to form the second argument of an ** sqlite3BtreeCursorHints() call. */ | > > > > > > > > > | > | 9387 9388 9389 9390 9391 9392 9393 9394 9395 9396 9397 9398 9399 9400 9401 9402 9403 9404 9405 9406 9407 9408 9409 9410 9411 9412 | #define BTREE_INCR_VACUUM 7 #define BTREE_APPLICATION_ID 8 #define BTREE_DATA_VERSION 15 /* A virtual meta-value */ /* ** Values that may be OR'd together to form the second argument of an ** sqlite3BtreeCursorHints() call. ** ** The BTREE_BULKLOAD flag is set on index cursors when the index is going ** to be filled with content that is already in sorted order. ** ** The BTREE_SEEK_EQ flag is set on cursors that will get OP_SeekGE or ** OP_SeekLE opcodes for a range search, but where the range of entries ** selected will all have the same key. In other words, the cursor will ** be used only for equality key searches. ** */ #define BTREE_BULKLOAD 0x00000001 /* Used to full index in sorted order */ #define BTREE_SEEK_EQ 0x00000002 /* EQ seeks only - no range seeks */ SQLITE_PRIVATE int sqlite3BtreeCursor( Btree*, /* BTree containing table to open */ int iTable, /* Index of root page */ int wrFlag, /* 1 for writing. 0 for read-only */ struct KeyInfo*, /* First argument to compare function */ BtCursor *pCursor /* Space to write cursor structure */ |
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9345 9346 9347 9348 9349 9350 9351 9352 9353 9354 9355 9356 9357 9358 | SQLITE_PRIVATE struct Pager *sqlite3BtreePager(Btree*); SQLITE_PRIVATE int sqlite3BtreePutData(BtCursor*, u32 offset, u32 amt, void*); SQLITE_PRIVATE void sqlite3BtreeIncrblobCursor(BtCursor *); SQLITE_PRIVATE void sqlite3BtreeClearCursor(BtCursor *); SQLITE_PRIVATE int sqlite3BtreeSetVersion(Btree *pBt, int iVersion); SQLITE_PRIVATE void sqlite3BtreeCursorHints(BtCursor *, unsigned int mask); SQLITE_PRIVATE int sqlite3BtreeIsReadonly(Btree *pBt); SQLITE_PRIVATE int sqlite3HeaderSizeBtree(void); #ifndef NDEBUG SQLITE_PRIVATE int sqlite3BtreeCursorIsValid(BtCursor*); #endif | > > > | 9444 9445 9446 9447 9448 9449 9450 9451 9452 9453 9454 9455 9456 9457 9458 9459 9460 | SQLITE_PRIVATE struct Pager *sqlite3BtreePager(Btree*); SQLITE_PRIVATE int sqlite3BtreePutData(BtCursor*, u32 offset, u32 amt, void*); SQLITE_PRIVATE void sqlite3BtreeIncrblobCursor(BtCursor *); SQLITE_PRIVATE void sqlite3BtreeClearCursor(BtCursor *); SQLITE_PRIVATE int sqlite3BtreeSetVersion(Btree *pBt, int iVersion); SQLITE_PRIVATE void sqlite3BtreeCursorHints(BtCursor *, unsigned int mask); #ifdef SQLITE_DEBUG SQLITE_PRIVATE int sqlite3BtreeCursorHasHint(BtCursor*, unsigned int mask); #endif SQLITE_PRIVATE int sqlite3BtreeIsReadonly(Btree *pBt); SQLITE_PRIVATE int sqlite3HeaderSizeBtree(void); #ifndef NDEBUG SQLITE_PRIVATE int sqlite3BtreeCursorIsValid(BtCursor*); #endif |
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9711 9712 9713 9714 9715 9716 9717 | #define OP_Param 132 #define OP_Real 133 /* same as TK_FLOAT, synopsis: r[P2]=P4 */ #define OP_FkCounter 134 /* synopsis: fkctr[P1]+=P2 */ #define OP_FkIfZero 135 /* synopsis: if fkctr[P1]==0 goto P2 */ #define OP_MemMax 136 /* synopsis: r[P1]=max(r[P1],r[P2]) */ #define OP_IfPos 137 /* synopsis: if r[P1]>0 goto P2 */ #define OP_IfNeg 138 /* synopsis: r[P1]+=P3, if r[P1]<0 goto P2 */ | | > > | | | | | | | | | | | | | | | | | 9813 9814 9815 9816 9817 9818 9819 9820 9821 9822 9823 9824 9825 9826 9827 9828 9829 9830 9831 9832 9833 9834 9835 9836 9837 9838 9839 9840 9841 9842 9843 9844 9845 | #define OP_Param 132 #define OP_Real 133 /* same as TK_FLOAT, synopsis: r[P2]=P4 */ #define OP_FkCounter 134 /* synopsis: fkctr[P1]+=P2 */ #define OP_FkIfZero 135 /* synopsis: if fkctr[P1]==0 goto P2 */ #define OP_MemMax 136 /* synopsis: r[P1]=max(r[P1],r[P2]) */ #define OP_IfPos 137 /* synopsis: if r[P1]>0 goto P2 */ #define OP_IfNeg 138 /* synopsis: r[P1]+=P3, if r[P1]<0 goto P2 */ #define OP_IfNotZero 139 /* synopsis: if r[P1]!=0 then r[P1]+=P3, goto P2 */ #define OP_DecrJumpZero 140 /* synopsis: if (--r[P1])==0 goto P2 */ #define OP_JumpZeroIncr 141 /* synopsis: if (r[P1]++)==0 ) goto P2 */ #define OP_AggFinal 142 /* synopsis: accum=r[P1] N=P2 */ #define OP_IncrVacuum 143 #define OP_Expire 144 #define OP_TableLock 145 /* synopsis: iDb=P1 root=P2 write=P3 */ #define OP_VBegin 146 #define OP_VCreate 147 #define OP_VDestroy 148 #define OP_VOpen 149 #define OP_VColumn 150 /* synopsis: r[P3]=vcolumn(P2) */ #define OP_VNext 151 #define OP_VRename 152 #define OP_Pagecount 153 #define OP_MaxPgcnt 154 #define OP_Init 155 /* synopsis: Start at P2 */ #define OP_Noop 156 #define OP_Explain 157 /* Properties such as "out2" or "jump" that are specified in ** comments following the "case" for each opcode in the vdbe.c ** are encoded into bitvectors as follows: */ #define OPFLG_JUMP 0x0001 /* jump: P2 holds jmp target */ |
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9759 9760 9761 9762 9763 9764 9765 | /* 80 */ 0x15, 0x15, 0x15, 0x15, 0x00, 0x4c, 0x4c, 0x4c,\ /* 88 */ 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x00,\ /* 96 */ 0x24, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02,\ /* 104 */ 0x00, 0x01, 0x01, 0x01, 0x01, 0x08, 0x08, 0x00,\ /* 112 */ 0x02, 0x01, 0x01, 0x01, 0x01, 0x02, 0x00, 0x00,\ /* 120 */ 0x02, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\ /* 128 */ 0x0c, 0x45, 0x15, 0x01, 0x02, 0x02, 0x00, 0x01,\ | | | | | 9863 9864 9865 9866 9867 9868 9869 9870 9871 9872 9873 9874 9875 9876 9877 9878 9879 | /* 80 */ 0x15, 0x15, 0x15, 0x15, 0x00, 0x4c, 0x4c, 0x4c,\ /* 88 */ 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x4c, 0x00,\ /* 96 */ 0x24, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02,\ /* 104 */ 0x00, 0x01, 0x01, 0x01, 0x01, 0x08, 0x08, 0x00,\ /* 112 */ 0x02, 0x01, 0x01, 0x01, 0x01, 0x02, 0x00, 0x00,\ /* 120 */ 0x02, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\ /* 128 */ 0x0c, 0x45, 0x15, 0x01, 0x02, 0x02, 0x00, 0x01,\ /* 136 */ 0x08, 0x05, 0x05, 0x05, 0x05, 0x05, 0x00, 0x01,\ /* 144 */ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,\ /* 152 */ 0x00, 0x02, 0x02, 0x01, 0x00, 0x00,} /************** End of opcodes.h *********************************************/ /************** Continuing where we left off in vdbe.h ***********************/ /* ** Prototypes for the VDBE interface. See comments on the implementation ** for a description of what each of these routines does. |
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10837 10838 10839 10840 10841 10842 10843 10844 10845 10846 10847 10848 10849 10850 10851 10852 10853 10854 10855 | int aLimit[SQLITE_N_LIMIT]; /* Limits */ int nMaxSorterMmap; /* Maximum size of regions mapped by sorter */ struct sqlite3InitInfo { /* Information used during initialization */ int newTnum; /* Rootpage of table being initialized */ u8 iDb; /* Which db file is being initialized */ u8 busy; /* TRUE if currently initializing */ u8 orphanTrigger; /* Last statement is orphaned TEMP trigger */ } init; int nVdbeActive; /* Number of VDBEs currently running */ int nVdbeRead; /* Number of active VDBEs that read or write */ int nVdbeWrite; /* Number of active VDBEs that read and write */ int nVdbeExec; /* Number of nested calls to VdbeExec() */ int nExtension; /* Number of loaded extensions */ void **aExtension; /* Array of shared library handles */ void (*xTrace)(void*,const char*); /* Trace function */ void *pTraceArg; /* Argument to the trace function */ void (*xProfile)(void*,const char*,u64); /* Profiling function */ void *pProfileArg; /* Argument to profile function */ void *pCommitArg; /* Argument to xCommitCallback() */ | > > | 10941 10942 10943 10944 10945 10946 10947 10948 10949 10950 10951 10952 10953 10954 10955 10956 10957 10958 10959 10960 10961 | int aLimit[SQLITE_N_LIMIT]; /* Limits */ int nMaxSorterMmap; /* Maximum size of regions mapped by sorter */ struct sqlite3InitInfo { /* Information used during initialization */ int newTnum; /* Rootpage of table being initialized */ u8 iDb; /* Which db file is being initialized */ u8 busy; /* TRUE if currently initializing */ u8 orphanTrigger; /* Last statement is orphaned TEMP trigger */ u8 imposterTable; /* Building an imposter table */ } init; int nVdbeActive; /* Number of VDBEs currently running */ int nVdbeRead; /* Number of active VDBEs that read or write */ int nVdbeWrite; /* Number of active VDBEs that read and write */ int nVdbeExec; /* Number of nested calls to VdbeExec() */ int nVDestroy; /* Number of active OP_VDestroy operations */ int nExtension; /* Number of loaded extensions */ void **aExtension; /* Array of shared library handles */ void (*xTrace)(void*,const char*); /* Trace function */ void *pTraceArg; /* Argument to the trace function */ void (*xProfile)(void*,const char*,u64); /* Profiling function */ void *pProfileArg; /* Argument to profile function */ void *pCommitArg; /* Argument to xCommitCallback() */ |
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11793 11794 11795 11796 11797 11798 11799 | #define EP_Skip 0x001000 /* COLLATE, AS, or UNLIKELY */ #define EP_Reduced 0x002000 /* Expr struct EXPR_REDUCEDSIZE bytes only */ #define EP_TokenOnly 0x004000 /* Expr struct EXPR_TOKENONLYSIZE bytes only */ #define EP_Static 0x008000 /* Held in memory not obtained from malloc() */ #define EP_MemToken 0x010000 /* Need to sqlite3DbFree() Expr.zToken */ #define EP_NoReduce 0x020000 /* Cannot EXPRDUP_REDUCE this Expr */ #define EP_Unlikely 0x040000 /* unlikely() or likelihood() function */ | | > > > > > > | 11899 11900 11901 11902 11903 11904 11905 11906 11907 11908 11909 11910 11911 11912 11913 11914 11915 11916 11917 11918 11919 11920 | #define EP_Skip 0x001000 /* COLLATE, AS, or UNLIKELY */ #define EP_Reduced 0x002000 /* Expr struct EXPR_REDUCEDSIZE bytes only */ #define EP_TokenOnly 0x004000 /* Expr struct EXPR_TOKENONLYSIZE bytes only */ #define EP_Static 0x008000 /* Held in memory not obtained from malloc() */ #define EP_MemToken 0x010000 /* Need to sqlite3DbFree() Expr.zToken */ #define EP_NoReduce 0x020000 /* Cannot EXPRDUP_REDUCE this Expr */ #define EP_Unlikely 0x040000 /* unlikely() or likelihood() function */ #define EP_ConstFunc 0x080000 /* Node is a SQLITE_FUNC_CONSTANT function */ #define EP_CanBeNull 0x100000 /* Can be null despite NOT NULL constraint */ #define EP_Subquery 0x200000 /* Tree contains a TK_SELECT operator */ /* ** Combinations of two or more EP_* flags */ #define EP_Propagate (EP_Collate|EP_Subquery) /* Propagate these bits up tree */ /* ** These macros can be used to test, set, or clear bits in the ** Expr.flags field. */ #define ExprHasProperty(E,P) (((E)->flags&(P))!=0) #define ExprHasAllProperty(E,P) (((E)->flags&(P))==(P)) |
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11993 11994 11995 11996 11997 11998 11999 | #define WHERE_ORDERBY_MIN 0x0001 /* ORDER BY processing for min() func */ #define WHERE_ORDERBY_MAX 0x0002 /* ORDER BY processing for max() func */ #define WHERE_ONEPASS_DESIRED 0x0004 /* Want to do one-pass UPDATE/DELETE */ #define WHERE_DUPLICATES_OK 0x0008 /* Ok to return a row more than once */ #define WHERE_OMIT_OPEN_CLOSE 0x0010 /* Table cursors are already open */ #define WHERE_FORCE_TABLE 0x0020 /* Do not use an index-only search */ #define WHERE_ONETABLE_ONLY 0x0040 /* Only code the 1st table in pTabList */ | | | 12105 12106 12107 12108 12109 12110 12111 12112 12113 12114 12115 12116 12117 12118 12119 | #define WHERE_ORDERBY_MIN 0x0001 /* ORDER BY processing for min() func */ #define WHERE_ORDERBY_MAX 0x0002 /* ORDER BY processing for max() func */ #define WHERE_ONEPASS_DESIRED 0x0004 /* Want to do one-pass UPDATE/DELETE */ #define WHERE_DUPLICATES_OK 0x0008 /* Ok to return a row more than once */ #define WHERE_OMIT_OPEN_CLOSE 0x0010 /* Table cursors are already open */ #define WHERE_FORCE_TABLE 0x0020 /* Do not use an index-only search */ #define WHERE_ONETABLE_ONLY 0x0040 /* Only code the 1st table in pTabList */ #define WHERE_NO_AUTOINDEX 0x0080 /* Disallow automatic indexes */ #define WHERE_GROUPBY 0x0100 /* pOrderBy is really a GROUP BY */ #define WHERE_DISTINCTBY 0x0200 /* pOrderby is really a DISTINCT clause */ #define WHERE_WANT_DISTINCT 0x0400 /* All output needs to be distinct */ #define WHERE_SORTBYGROUP 0x0800 /* Support sqlite3WhereIsSorted() */ #define WHERE_REOPEN_IDX 0x1000 /* Try to use OP_ReopenIdx */ /* Allowed return values from sqlite3WhereIsDistinct() |
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12430 12431 12432 12433 12434 12435 12436 | #define OPFLAG_LASTROWID 0x02 /* Set to update db->lastRowid */ #define OPFLAG_ISUPDATE 0x04 /* This OP_Insert is an sql UPDATE */ #define OPFLAG_APPEND 0x08 /* This is likely to be an append */ #define OPFLAG_USESEEKRESULT 0x10 /* Try to avoid a seek in BtreeInsert() */ #define OPFLAG_LENGTHARG 0x40 /* OP_Column only used for length() */ #define OPFLAG_TYPEOFARG 0x80 /* OP_Column only used for typeof() */ #define OPFLAG_BULKCSR 0x01 /* OP_Open** used to open bulk cursor */ | > | | 12542 12543 12544 12545 12546 12547 12548 12549 12550 12551 12552 12553 12554 12555 12556 12557 | #define OPFLAG_LASTROWID 0x02 /* Set to update db->lastRowid */ #define OPFLAG_ISUPDATE 0x04 /* This OP_Insert is an sql UPDATE */ #define OPFLAG_APPEND 0x08 /* This is likely to be an append */ #define OPFLAG_USESEEKRESULT 0x10 /* Try to avoid a seek in BtreeInsert() */ #define OPFLAG_LENGTHARG 0x40 /* OP_Column only used for length() */ #define OPFLAG_TYPEOFARG 0x80 /* OP_Column only used for typeof() */ #define OPFLAG_BULKCSR 0x01 /* OP_Open** used to open bulk cursor */ #define OPFLAG_SEEKEQ 0x02 /* OP_Open** cursor uses EQ seek only */ #define OPFLAG_P2ISREG 0x04 /* P2 to OP_Open** is a register number */ #define OPFLAG_PERMUTE 0x01 /* OP_Compare: use the permutation */ /* * Each trigger present in the database schema is stored as an instance of * struct Trigger. * * Pointers to instances of struct Trigger are stored in two ways. |
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12834 12835 12836 12837 12838 12839 12840 | SQLITE_PRIVATE sqlite3_mutex_methods const *sqlite3DefaultMutex(void); SQLITE_PRIVATE sqlite3_mutex_methods const *sqlite3NoopMutex(void); SQLITE_PRIVATE sqlite3_mutex *sqlite3MutexAlloc(int); SQLITE_PRIVATE int sqlite3MutexInit(void); SQLITE_PRIVATE int sqlite3MutexEnd(void); #endif | > | | > > > > | 12947 12948 12949 12950 12951 12952 12953 12954 12955 12956 12957 12958 12959 12960 12961 12962 12963 12964 12965 12966 12967 12968 12969 | SQLITE_PRIVATE sqlite3_mutex_methods const *sqlite3DefaultMutex(void); SQLITE_PRIVATE sqlite3_mutex_methods const *sqlite3NoopMutex(void); SQLITE_PRIVATE sqlite3_mutex *sqlite3MutexAlloc(int); SQLITE_PRIVATE int sqlite3MutexInit(void); SQLITE_PRIVATE int sqlite3MutexEnd(void); #endif SQLITE_PRIVATE sqlite3_int64 sqlite3StatusValue(int); SQLITE_PRIVATE void sqlite3StatusUp(int, int); SQLITE_PRIVATE void sqlite3StatusDown(int, int); SQLITE_PRIVATE void sqlite3StatusSet(int, int); /* Access to mutexes used by sqlite3_status() */ SQLITE_PRIVATE sqlite3_mutex *sqlite3Pcache1Mutex(void); SQLITE_PRIVATE sqlite3_mutex *sqlite3MallocMutex(void); #ifndef SQLITE_OMIT_FLOATING_POINT SQLITE_PRIVATE int sqlite3IsNaN(double); #else # define sqlite3IsNaN(X) 0 #endif /* |
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12902 12903 12904 12905 12906 12907 12908 12909 12910 12911 12912 12913 12914 12915 | SQLITE_PRIVATE Expr *sqlite3ExprFunction(Parse*,ExprList*, Token*); SQLITE_PRIVATE void sqlite3ExprAssignVarNumber(Parse*, Expr*); SQLITE_PRIVATE void sqlite3ExprDelete(sqlite3*, Expr*); SQLITE_PRIVATE ExprList *sqlite3ExprListAppend(Parse*,ExprList*,Expr*); SQLITE_PRIVATE void sqlite3ExprListSetName(Parse*,ExprList*,Token*,int); SQLITE_PRIVATE void sqlite3ExprListSetSpan(Parse*,ExprList*,ExprSpan*); SQLITE_PRIVATE void sqlite3ExprListDelete(sqlite3*, ExprList*); SQLITE_PRIVATE int sqlite3Init(sqlite3*, char**); SQLITE_PRIVATE int sqlite3InitCallback(void*, int, char**, char**); SQLITE_PRIVATE void sqlite3Pragma(Parse*,Token*,Token*,Token*,int); SQLITE_PRIVATE void sqlite3ResetAllSchemasOfConnection(sqlite3*); SQLITE_PRIVATE void sqlite3ResetOneSchema(sqlite3*,int); SQLITE_PRIVATE void sqlite3CollapseDatabaseArray(sqlite3*); SQLITE_PRIVATE void sqlite3BeginParse(Parse*,int); | > | 13020 13021 13022 13023 13024 13025 13026 13027 13028 13029 13030 13031 13032 13033 13034 | SQLITE_PRIVATE Expr *sqlite3ExprFunction(Parse*,ExprList*, Token*); SQLITE_PRIVATE void sqlite3ExprAssignVarNumber(Parse*, Expr*); SQLITE_PRIVATE void sqlite3ExprDelete(sqlite3*, Expr*); SQLITE_PRIVATE ExprList *sqlite3ExprListAppend(Parse*,ExprList*,Expr*); SQLITE_PRIVATE void sqlite3ExprListSetName(Parse*,ExprList*,Token*,int); SQLITE_PRIVATE void sqlite3ExprListSetSpan(Parse*,ExprList*,ExprSpan*); SQLITE_PRIVATE void sqlite3ExprListDelete(sqlite3*, ExprList*); SQLITE_PRIVATE u32 sqlite3ExprListFlags(const ExprList*); SQLITE_PRIVATE int sqlite3Init(sqlite3*, char**); SQLITE_PRIVATE int sqlite3InitCallback(void*, int, char**, char**); SQLITE_PRIVATE void sqlite3Pragma(Parse*,Token*,Token*,Token*,int); SQLITE_PRIVATE void sqlite3ResetAllSchemasOfConnection(sqlite3*); SQLITE_PRIVATE void sqlite3ResetOneSchema(sqlite3*,int); SQLITE_PRIVATE void sqlite3CollapseDatabaseArray(sqlite3*); SQLITE_PRIVATE void sqlite3BeginParse(Parse*,int); |
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13216 13217 13218 13219 13220 13221 13222 | #endif SQLITE_PRIVATE const char *sqlite3ErrStr(int); SQLITE_PRIVATE int sqlite3ReadSchema(Parse *pParse); SQLITE_PRIVATE CollSeq *sqlite3FindCollSeq(sqlite3*,u8 enc, const char*,int); SQLITE_PRIVATE CollSeq *sqlite3LocateCollSeq(Parse *pParse, const char*zName); SQLITE_PRIVATE CollSeq *sqlite3ExprCollSeq(Parse *pParse, Expr *pExpr); | | | 13335 13336 13337 13338 13339 13340 13341 13342 13343 13344 13345 13346 13347 13348 13349 | #endif SQLITE_PRIVATE const char *sqlite3ErrStr(int); SQLITE_PRIVATE int sqlite3ReadSchema(Parse *pParse); SQLITE_PRIVATE CollSeq *sqlite3FindCollSeq(sqlite3*,u8 enc, const char*,int); SQLITE_PRIVATE CollSeq *sqlite3LocateCollSeq(Parse *pParse, const char*zName); SQLITE_PRIVATE CollSeq *sqlite3ExprCollSeq(Parse *pParse, Expr *pExpr); SQLITE_PRIVATE Expr *sqlite3ExprAddCollateToken(Parse *pParse, Expr*, const Token*, int); SQLITE_PRIVATE Expr *sqlite3ExprAddCollateString(Parse*,Expr*,const char*); SQLITE_PRIVATE Expr *sqlite3ExprSkipCollate(Expr*); SQLITE_PRIVATE int sqlite3CheckCollSeq(Parse *, CollSeq *); SQLITE_PRIVATE int sqlite3CheckObjectName(Parse *, const char *); SQLITE_PRIVATE void sqlite3VdbeSetChanges(sqlite3 *, int); SQLITE_PRIVATE int sqlite3AddInt64(i64*,i64); SQLITE_PRIVATE int sqlite3SubInt64(i64*,i64); |
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13485 13486 13487 13488 13489 13490 13491 13492 | #define sqlite3JournalExists(p) 1 #endif SQLITE_PRIVATE void sqlite3MemJournalOpen(sqlite3_file *); SQLITE_PRIVATE int sqlite3MemJournalSize(void); SQLITE_PRIVATE int sqlite3IsMemJournal(sqlite3_file *); #if SQLITE_MAX_EXPR_DEPTH>0 | > < < | 13604 13605 13606 13607 13608 13609 13610 13611 13612 13613 13614 13615 13616 13617 13618 13619 13620 13621 13622 | #define sqlite3JournalExists(p) 1 #endif SQLITE_PRIVATE void sqlite3MemJournalOpen(sqlite3_file *); SQLITE_PRIVATE int sqlite3MemJournalSize(void); SQLITE_PRIVATE int sqlite3IsMemJournal(sqlite3_file *); SQLITE_PRIVATE void sqlite3ExprSetHeightAndFlags(Parse *pParse, Expr *p); #if SQLITE_MAX_EXPR_DEPTH>0 SQLITE_PRIVATE int sqlite3SelectExprHeight(Select *); SQLITE_PRIVATE int sqlite3ExprCheckHeight(Parse*, int); #else #define sqlite3SelectExprHeight(x) 0 #define sqlite3ExprCheckHeight(x,y) #endif SQLITE_PRIVATE u32 sqlite3Get4byte(const u8*); SQLITE_PRIVATE void sqlite3Put4byte(u8*, u32); |
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13520 13521 13522 13523 13524 13525 13526 | ** If the SQLITE_ENABLE IOTRACE exists then the global variable ** sqlite3IoTrace is a pointer to a printf-like routine used to ** print I/O tracing messages. */ #ifdef SQLITE_ENABLE_IOTRACE # define IOTRACE(A) if( sqlite3IoTrace ){ sqlite3IoTrace A; } SQLITE_PRIVATE void sqlite3VdbeIOTraceSql(Vdbe*); | | | 13638 13639 13640 13641 13642 13643 13644 13645 13646 13647 13648 13649 13650 13651 13652 | ** If the SQLITE_ENABLE IOTRACE exists then the global variable ** sqlite3IoTrace is a pointer to a printf-like routine used to ** print I/O tracing messages. */ #ifdef SQLITE_ENABLE_IOTRACE # define IOTRACE(A) if( sqlite3IoTrace ){ sqlite3IoTrace A; } SQLITE_PRIVATE void sqlite3VdbeIOTraceSql(Vdbe*); SQLITE_API SQLITE_EXTERN void (SQLITE_CDECL *sqlite3IoTrace)(const char*,...); #else # define IOTRACE(A) # define sqlite3VdbeIOTraceSql(X) #endif /* ** These routines are available for the mem2.c debugging memory allocator |
︙ | ︙ | |||
13627 13628 13629 13630 13631 13632 13633 | #ifdef SQLITE_EBCDIC 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, /* 0x */ 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, /* 1x */ 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, /* 2x */ 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, /* 3x */ 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, /* 4x */ 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, /* 5x */ | | | | | | | 13745 13746 13747 13748 13749 13750 13751 13752 13753 13754 13755 13756 13757 13758 13759 13760 13761 13762 13763 13764 13765 13766 13767 13768 | #ifdef SQLITE_EBCDIC 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, /* 0x */ 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, /* 1x */ 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, /* 2x */ 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, /* 3x */ 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, /* 4x */ 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, /* 5x */ 96, 97, 98, 99,100,101,102,103,104,105,106,107,108,109,110,111, /* 6x */ 112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127, /* 7x */ 128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143, /* 8x */ 144,145,146,147,148,149,150,151,152,153,154,155,156,157,158,159, /* 9x */ 160,161,162,163,164,165,166,167,168,169,170,171,140,141,142,175, /* Ax */ 176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191, /* Bx */ 192,129,130,131,132,133,134,135,136,137,202,203,204,205,206,207, /* Cx */ 208,145,146,147,148,149,150,151,152,153,218,219,220,221,222,223, /* Dx */ 224,225,162,163,164,165,166,167,168,169,234,235,236,237,238,239, /* Ex */ 240,241,242,243,244,245,246,247,248,249,250,251,252,253,254,255, /* Fx */ #endif }; /* ** The following 256 byte lookup table is used to support SQLites built-in ** equivalents to the following standard library functions: ** |
︙ | ︙ | |||
14233 14234 14235 14236 14237 14238 14239 | /* ** Given the name of a compile-time option, return true if that option ** was used and false if not. ** ** The name can optionally begin with "SQLITE_" but the "SQLITE_" prefix ** is not required for a match. */ | | | 14351 14352 14353 14354 14355 14356 14357 14358 14359 14360 14361 14362 14363 14364 14365 | /* ** Given the name of a compile-time option, return true if that option ** was used and false if not. ** ** The name can optionally begin with "SQLITE_" but the "SQLITE_" prefix ** is not required for a match. */ SQLITE_API int SQLITE_STDCALL sqlite3_compileoption_used(const char *zOptName){ int i, n; #if SQLITE_ENABLE_API_ARMOR if( zOptName==0 ){ (void)SQLITE_MISUSE_BKPT; return 0; } |
︙ | ︙ | |||
14261 14262 14263 14264 14265 14266 14267 | return 0; } /* ** Return the N-th compile-time option string. If N is out of range, ** return a NULL pointer. */ | | | 14379 14380 14381 14382 14383 14384 14385 14386 14387 14388 14389 14390 14391 14392 14393 | return 0; } /* ** Return the N-th compile-time option string. If N is out of range, ** return a NULL pointer. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_compileoption_get(int N){ if( N>=0 && N<ArraySize(azCompileOpt) ){ return azCompileOpt[N]; } return 0; } #endif /* SQLITE_OMIT_COMPILEOPTION_DIAGS */ |
︙ | ︙ | |||
14604 14605 14606 14607 14608 14609 14610 | /* ** An instance of the virtual machine. This structure contains the complete ** state of the virtual machine. ** ** The "sqlite3_stmt" structure pointer that is returned by sqlite3_prepare() ** is really a pointer to an instance of this structure. | < < < < < < < < | 14722 14723 14724 14725 14726 14727 14728 14729 14730 14731 14732 14733 14734 14735 | /* ** An instance of the virtual machine. This structure contains the complete ** state of the virtual machine. ** ** The "sqlite3_stmt" structure pointer that is returned by sqlite3_prepare() ** is really a pointer to an instance of this structure. */ struct Vdbe { sqlite3 *db; /* The database connection that owns this statement */ Op *aOp; /* Space to hold the virtual machine's program */ Mem *aMem; /* The memory locations */ Mem **apArg; /* Arguments to currently executing user function */ Mem *aColName; /* Column names to return */ |
︙ | ︙ | |||
14635 14636 14637 14638 14639 14640 14641 14642 14643 14644 14645 | Mem *aVar; /* Values for the OP_Variable opcode. */ char **azVar; /* Name of variables */ ynVar nVar; /* Number of entries in aVar[] */ ynVar nzVar; /* Number of entries in azVar[] */ u32 cacheCtr; /* VdbeCursor row cache generation counter */ int pc; /* The program counter */ int rc; /* Value to return */ u16 nResColumn; /* Number of columns in one row of the result set */ u8 errorAction; /* Recovery action to do in case of an error */ u8 minWriteFileFormat; /* Minimum file format for writable database files */ bft explain:2; /* True if EXPLAIN present on SQL command */ | > > > < | 14745 14746 14747 14748 14749 14750 14751 14752 14753 14754 14755 14756 14757 14758 14759 14760 14761 14762 14763 14764 14765 | Mem *aVar; /* Values for the OP_Variable opcode. */ char **azVar; /* Name of variables */ ynVar nVar; /* Number of entries in aVar[] */ ynVar nzVar; /* Number of entries in azVar[] */ u32 cacheCtr; /* VdbeCursor row cache generation counter */ int pc; /* The program counter */ int rc; /* Value to return */ #ifdef SQLITE_DEBUG int rcApp; /* errcode set by sqlite3_result_error_code() */ #endif u16 nResColumn; /* Number of columns in one row of the result set */ u8 errorAction; /* Recovery action to do in case of an error */ u8 minWriteFileFormat; /* Minimum file format for writable database files */ bft explain:2; /* True if EXPLAIN present on SQL command */ bft changeCntOn:1; /* True to update the change-counter */ bft expired:1; /* True if the VM needs to be recompiled */ bft runOnlyOnce:1; /* Automatically expire on reset */ bft usesStmtJournal:1; /* True if uses a statement journal */ bft readOnly:1; /* True for statements that do not write */ bft bIsReader:1; /* True for statements that read */ bft isPrepareV2:1; /* True if prepared with prepare_v2() */ |
︙ | ︙ | |||
14799 14800 14801 14802 14803 14804 14805 | /************** Continuing where we left off in status.c *********************/ /* ** Variables in which to record status information. */ typedef struct sqlite3StatType sqlite3StatType; static SQLITE_WSD struct sqlite3StatType { | > | | > > > > > > > > > > > > > > > > > > > > > | > | > > > | | > > > > > > > | > > > > > > > > > > > | > | > > > > < < < < > > > > | > > > > > > > > > > > > > > > > > > > | | 14911 14912 14913 14914 14915 14916 14917 14918 14919 14920 14921 14922 14923 14924 14925 14926 14927 14928 14929 14930 14931 14932 14933 14934 14935 14936 14937 14938 14939 14940 14941 14942 14943 14944 14945 14946 14947 14948 14949 14950 14951 14952 14953 14954 14955 14956 14957 14958 14959 14960 14961 14962 14963 14964 14965 14966 14967 14968 14969 14970 14971 14972 14973 14974 14975 14976 14977 14978 14979 14980 14981 14982 14983 14984 14985 14986 14987 14988 14989 14990 14991 14992 14993 14994 14995 14996 14997 14998 14999 15000 15001 15002 15003 15004 15005 15006 15007 15008 15009 15010 15011 15012 15013 15014 15015 15016 15017 15018 15019 15020 15021 15022 15023 15024 15025 15026 15027 15028 15029 15030 15031 15032 15033 15034 15035 15036 15037 15038 15039 15040 15041 15042 15043 15044 15045 15046 15047 15048 15049 15050 15051 15052 15053 15054 15055 15056 15057 15058 15059 15060 15061 15062 15063 15064 15065 15066 15067 15068 15069 15070 15071 15072 | /************** Continuing where we left off in status.c *********************/ /* ** Variables in which to record status information. */ typedef struct sqlite3StatType sqlite3StatType; static SQLITE_WSD struct sqlite3StatType { #if SQLITE_PTRSIZE>4 sqlite3_int64 nowValue[10]; /* Current value */ sqlite3_int64 mxValue[10]; /* Maximum value */ #else u32 nowValue[10]; /* Current value */ u32 mxValue[10]; /* Maximum value */ #endif } sqlite3Stat = { {0,}, {0,} }; /* ** Elements of sqlite3Stat[] are protected by either the memory allocator ** mutex, or by the pcache1 mutex. The following array determines which. */ static const char statMutex[] = { 0, /* SQLITE_STATUS_MEMORY_USED */ 1, /* SQLITE_STATUS_PAGECACHE_USED */ 1, /* SQLITE_STATUS_PAGECACHE_OVERFLOW */ 0, /* SQLITE_STATUS_SCRATCH_USED */ 0, /* SQLITE_STATUS_SCRATCH_OVERFLOW */ 0, /* SQLITE_STATUS_MALLOC_SIZE */ 0, /* SQLITE_STATUS_PARSER_STACK */ 1, /* SQLITE_STATUS_PAGECACHE_SIZE */ 0, /* SQLITE_STATUS_SCRATCH_SIZE */ 0, /* SQLITE_STATUS_MALLOC_COUNT */ }; /* The "wsdStat" macro will resolve to the status information ** state vector. If writable static data is unsupported on the target, ** we have to locate the state vector at run-time. In the more common ** case where writable static data is supported, wsdStat can refer directly ** to the "sqlite3Stat" state vector declared above. */ #ifdef SQLITE_OMIT_WSD # define wsdStatInit sqlite3StatType *x = &GLOBAL(sqlite3StatType,sqlite3Stat) # define wsdStat x[0] #else # define wsdStatInit # define wsdStat sqlite3Stat #endif /* ** Return the current value of a status parameter. The caller must ** be holding the appropriate mutex. */ SQLITE_PRIVATE sqlite3_int64 sqlite3StatusValue(int op){ wsdStatInit; assert( op>=0 && op<ArraySize(wsdStat.nowValue) ); assert( op>=0 && op<ArraySize(statMutex) ); assert( sqlite3_mutex_held(statMutex[op] ? sqlite3Pcache1Mutex() : sqlite3MallocMutex()) ); return wsdStat.nowValue[op]; } /* ** Add N to the value of a status record. The caller must hold the ** appropriate mutex. (Locking is checked by assert()). ** ** The StatusUp() routine can accept positive or negative values for N. ** The value of N is added to the current status value and the high-water ** mark is adjusted if necessary. ** ** The StatusDown() routine lowers the current value by N. The highwater ** mark is unchanged. N must be non-negative for StatusDown(). */ SQLITE_PRIVATE void sqlite3StatusUp(int op, int N){ wsdStatInit; assert( op>=0 && op<ArraySize(wsdStat.nowValue) ); assert( op>=0 && op<ArraySize(statMutex) ); assert( sqlite3_mutex_held(statMutex[op] ? sqlite3Pcache1Mutex() : sqlite3MallocMutex()) ); wsdStat.nowValue[op] += N; if( wsdStat.nowValue[op]>wsdStat.mxValue[op] ){ wsdStat.mxValue[op] = wsdStat.nowValue[op]; } } SQLITE_PRIVATE void sqlite3StatusDown(int op, int N){ wsdStatInit; assert( N>=0 ); assert( op>=0 && op<ArraySize(statMutex) ); assert( sqlite3_mutex_held(statMutex[op] ? sqlite3Pcache1Mutex() : sqlite3MallocMutex()) ); assert( op>=0 && op<ArraySize(wsdStat.nowValue) ); wsdStat.nowValue[op] -= N; } /* ** Set the value of a status to X. The highwater mark is adjusted if ** necessary. The caller must hold the appropriate mutex. */ SQLITE_PRIVATE void sqlite3StatusSet(int op, int X){ wsdStatInit; assert( op>=0 && op<ArraySize(wsdStat.nowValue) ); assert( op>=0 && op<ArraySize(statMutex) ); assert( sqlite3_mutex_held(statMutex[op] ? sqlite3Pcache1Mutex() : sqlite3MallocMutex()) ); wsdStat.nowValue[op] = X; if( wsdStat.nowValue[op]>wsdStat.mxValue[op] ){ wsdStat.mxValue[op] = wsdStat.nowValue[op]; } } /* ** Query status information. */ SQLITE_API int SQLITE_STDCALL sqlite3_status64( int op, sqlite3_int64 *pCurrent, sqlite3_int64 *pHighwater, int resetFlag ){ sqlite3_mutex *pMutex; wsdStatInit; if( op<0 || op>=ArraySize(wsdStat.nowValue) ){ return SQLITE_MISUSE_BKPT; } #ifdef SQLITE_ENABLE_API_ARMOR if( pCurrent==0 || pHighwater==0 ) return SQLITE_MISUSE_BKPT; #endif pMutex = statMutex[op] ? sqlite3Pcache1Mutex() : sqlite3MallocMutex(); sqlite3_mutex_enter(pMutex); *pCurrent = wsdStat.nowValue[op]; *pHighwater = wsdStat.mxValue[op]; if( resetFlag ){ wsdStat.mxValue[op] = wsdStat.nowValue[op]; } sqlite3_mutex_leave(pMutex); (void)pMutex; /* Prevent warning when SQLITE_THREADSAFE=0 */ return SQLITE_OK; } SQLITE_API int SQLITE_STDCALL sqlite3_status(int op, int *pCurrent, int *pHighwater, int resetFlag){ sqlite3_int64 iCur, iHwtr; int rc; #ifdef SQLITE_ENABLE_API_ARMOR if( pCurrent==0 || pHighwater==0 ) return SQLITE_MISUSE_BKPT; #endif rc = sqlite3_status64(op, &iCur, &iHwtr, resetFlag); if( rc==0 ){ *pCurrent = (int)iCur; *pHighwater = (int)iHwtr; } return rc; } /* ** Query status information for a single database connection */ SQLITE_API int SQLITE_STDCALL sqlite3_db_status( sqlite3 *db, /* The database connection whose status is desired */ int op, /* Status verb */ int *pCurrent, /* Write current value here */ int *pHighwater, /* Write high-water mark here */ int resetFlag /* Reset high-water mark if true */ ){ int rc = SQLITE_OK; /* Return code */ |
︙ | ︙ | |||
16502 16503 16504 16505 16506 16507 16508 | static sqlite3_vfs * SQLITE_WSD vfsList = 0; #define vfsList GLOBAL(sqlite3_vfs *, vfsList) /* ** Locate a VFS by name. If no name is given, simply return the ** first VFS on the list. */ | | | 16682 16683 16684 16685 16686 16687 16688 16689 16690 16691 16692 16693 16694 16695 16696 | static sqlite3_vfs * SQLITE_WSD vfsList = 0; #define vfsList GLOBAL(sqlite3_vfs *, vfsList) /* ** Locate a VFS by name. If no name is given, simply return the ** first VFS on the list. */ SQLITE_API sqlite3_vfs *SQLITE_STDCALL sqlite3_vfs_find(const char *zVfs){ sqlite3_vfs *pVfs = 0; #if SQLITE_THREADSAFE sqlite3_mutex *mutex; #endif #ifndef SQLITE_OMIT_AUTOINIT int rc = sqlite3_initialize(); if( rc ) return 0; |
︙ | ︙ | |||
16548 16549 16550 16551 16552 16553 16554 | } /* ** Register a VFS with the system. It is harmless to register the same ** VFS multiple times. The new VFS becomes the default if makeDflt is ** true. */ | | | 16728 16729 16730 16731 16732 16733 16734 16735 16736 16737 16738 16739 16740 16741 16742 | } /* ** Register a VFS with the system. It is harmless to register the same ** VFS multiple times. The new VFS becomes the default if makeDflt is ** true. */ SQLITE_API int SQLITE_STDCALL sqlite3_vfs_register(sqlite3_vfs *pVfs, int makeDflt){ MUTEX_LOGIC(sqlite3_mutex *mutex;) #ifndef SQLITE_OMIT_AUTOINIT int rc = sqlite3_initialize(); if( rc ) return rc; #endif #ifdef SQLITE_ENABLE_API_ARMOR if( pVfs==0 ) return SQLITE_MISUSE_BKPT; |
︙ | ︙ | |||
16576 16577 16578 16579 16580 16581 16582 | sqlite3_mutex_leave(mutex); return SQLITE_OK; } /* ** Unregister a VFS so that it is no longer accessible. */ | | | 16756 16757 16758 16759 16760 16761 16762 16763 16764 16765 16766 16767 16768 16769 16770 | sqlite3_mutex_leave(mutex); return SQLITE_OK; } /* ** Unregister a VFS so that it is no longer accessible. */ SQLITE_API int SQLITE_STDCALL sqlite3_vfs_unregister(sqlite3_vfs *pVfs){ #if SQLITE_THREADSAFE sqlite3_mutex *mutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER); #endif sqlite3_mutex_enter(mutex); vfsUnlink(pVfs); sqlite3_mutex_leave(mutex); return SQLITE_OK; |
︙ | ︙ | |||
18912 18913 18914 18915 18916 18917 18918 | return rc; } /* ** Retrieve a pointer to a static mutex or allocate a new dynamic one. */ | | | | | | | | | 19092 19093 19094 19095 19096 19097 19098 19099 19100 19101 19102 19103 19104 19105 19106 19107 19108 19109 19110 19111 19112 19113 19114 19115 19116 19117 19118 19119 19120 19121 19122 19123 19124 19125 19126 19127 19128 19129 19130 19131 19132 19133 19134 19135 19136 19137 19138 19139 19140 19141 19142 19143 19144 19145 19146 19147 19148 19149 19150 19151 19152 19153 19154 19155 19156 19157 19158 19159 19160 19161 19162 19163 19164 19165 19166 19167 19168 19169 19170 19171 19172 19173 | return rc; } /* ** Retrieve a pointer to a static mutex or allocate a new dynamic one. */ SQLITE_API sqlite3_mutex *SQLITE_STDCALL sqlite3_mutex_alloc(int id){ #ifndef SQLITE_OMIT_AUTOINIT if( id<=SQLITE_MUTEX_RECURSIVE && sqlite3_initialize() ) return 0; if( id>SQLITE_MUTEX_RECURSIVE && sqlite3MutexInit() ) return 0; #endif return sqlite3GlobalConfig.mutex.xMutexAlloc(id); } SQLITE_PRIVATE sqlite3_mutex *sqlite3MutexAlloc(int id){ if( !sqlite3GlobalConfig.bCoreMutex ){ return 0; } assert( GLOBAL(int, mutexIsInit) ); return sqlite3GlobalConfig.mutex.xMutexAlloc(id); } /* ** Free a dynamic mutex. */ SQLITE_API void SQLITE_STDCALL sqlite3_mutex_free(sqlite3_mutex *p){ if( p ){ sqlite3GlobalConfig.mutex.xMutexFree(p); } } /* ** Obtain the mutex p. If some other thread already has the mutex, block ** until it can be obtained. */ SQLITE_API void SQLITE_STDCALL sqlite3_mutex_enter(sqlite3_mutex *p){ if( p ){ sqlite3GlobalConfig.mutex.xMutexEnter(p); } } /* ** Obtain the mutex p. If successful, return SQLITE_OK. Otherwise, if another ** thread holds the mutex and it cannot be obtained, return SQLITE_BUSY. */ SQLITE_API int SQLITE_STDCALL sqlite3_mutex_try(sqlite3_mutex *p){ int rc = SQLITE_OK; if( p ){ return sqlite3GlobalConfig.mutex.xMutexTry(p); } return rc; } /* ** The sqlite3_mutex_leave() routine exits a mutex that was previously ** entered by the same thread. The behavior is undefined if the mutex ** is not currently entered. If a NULL pointer is passed as an argument ** this function is a no-op. */ SQLITE_API void SQLITE_STDCALL sqlite3_mutex_leave(sqlite3_mutex *p){ if( p ){ sqlite3GlobalConfig.mutex.xMutexLeave(p); } } #ifndef NDEBUG /* ** The sqlite3_mutex_held() and sqlite3_mutex_notheld() routine are ** intended for use inside assert() statements. */ SQLITE_API int SQLITE_STDCALL sqlite3_mutex_held(sqlite3_mutex *p){ return p==0 || sqlite3GlobalConfig.mutex.xMutexHeld(p); } SQLITE_API int SQLITE_STDCALL sqlite3_mutex_notheld(sqlite3_mutex *p){ return p==0 || sqlite3GlobalConfig.mutex.xMutexNotheld(p); } #endif #endif /* !defined(SQLITE_MUTEX_OMIT) */ /************** End of mutex.c ***********************************************/ |
︙ | ︙ | |||
19109 19110 19111 19112 19113 19114 19115 | if( pNew ){ pNew->id = id; pNew->cnt = 0; } break; } default: { | > | < > > > > | | > > > > > | 19289 19290 19291 19292 19293 19294 19295 19296 19297 19298 19299 19300 19301 19302 19303 19304 19305 19306 19307 19308 19309 19310 19311 19312 19313 19314 19315 19316 19317 19318 19319 19320 19321 19322 19323 19324 19325 19326 19327 19328 19329 | if( pNew ){ pNew->id = id; pNew->cnt = 0; } break; } default: { #ifdef SQLITE_ENABLE_API_ARMOR if( id-2<0 || id-2>=ArraySize(aStatic) ){ (void)SQLITE_MISUSE_BKPT; return 0; } #endif pNew = &aStatic[id-2]; pNew->id = id; break; } } return (sqlite3_mutex*)pNew; } /* ** This routine deallocates a previously allocated mutex. */ static void debugMutexFree(sqlite3_mutex *pX){ sqlite3_debug_mutex *p = (sqlite3_debug_mutex*)pX; assert( p->cnt==0 ); if( p->id==SQLITE_MUTEX_RECURSIVE || p->id==SQLITE_MUTEX_FAST ){ sqlite3_free(p); }else{ #ifdef SQLITE_ENABLE_API_ARMOR (void)SQLITE_MISUSE_BKPT; #endif } } /* ** The sqlite3_mutex_enter() and sqlite3_mutex_try() routines attempt ** to enter a mutex. If another thread is already within the mutex, ** sqlite3_mutex_enter() will block and sqlite3_mutex_try() will return ** SQLITE_BUSY. The sqlite3_mutex_try() interface returns SQLITE_OK |
︙ | ︙ | |||
19237 19238 19239 19240 19241 19242 19243 | #endif /* ** Each recursive mutex is an instance of the following structure. */ struct sqlite3_mutex { pthread_mutex_t mutex; /* Mutex controlling the lock */ | | > > | 19426 19427 19428 19429 19430 19431 19432 19433 19434 19435 19436 19437 19438 19439 19440 19441 19442 19443 | #endif /* ** Each recursive mutex is an instance of the following structure. */ struct sqlite3_mutex { pthread_mutex_t mutex; /* Mutex controlling the lock */ #if SQLITE_MUTEX_NREF || defined(SQLITE_ENABLE_API_ARMOR) int id; /* Mutex type */ #endif #if SQLITE_MUTEX_NREF volatile int nRef; /* Number of entrances */ volatile pthread_t owner; /* Thread that is within this mutex */ int trace; /* True to trace changes */ #endif }; #if SQLITE_MUTEX_NREF #define SQLITE3_MUTEX_INITIALIZER { PTHREAD_MUTEX_INITIALIZER, 0, 0, (pthread_t)0, 0 } |
︙ | ︙ | |||
19355 19356 19357 19358 19359 19360 19361 | /* Use a recursive mutex if it is available */ pthread_mutexattr_t recursiveAttr; pthread_mutexattr_init(&recursiveAttr); pthread_mutexattr_settype(&recursiveAttr, PTHREAD_MUTEX_RECURSIVE); pthread_mutex_init(&p->mutex, &recursiveAttr); pthread_mutexattr_destroy(&recursiveAttr); #endif | < < < < < < < < < > > > > | > > | | > > > > > > | 19546 19547 19548 19549 19550 19551 19552 19553 19554 19555 19556 19557 19558 19559 19560 19561 19562 19563 19564 19565 19566 19567 19568 19569 19570 19571 19572 19573 19574 19575 19576 19577 19578 19579 19580 19581 19582 19583 19584 19585 19586 19587 19588 19589 19590 19591 19592 19593 19594 19595 19596 19597 19598 19599 19600 19601 19602 19603 19604 19605 19606 | /* Use a recursive mutex if it is available */ pthread_mutexattr_t recursiveAttr; pthread_mutexattr_init(&recursiveAttr); pthread_mutexattr_settype(&recursiveAttr, PTHREAD_MUTEX_RECURSIVE); pthread_mutex_init(&p->mutex, &recursiveAttr); pthread_mutexattr_destroy(&recursiveAttr); #endif } break; } case SQLITE_MUTEX_FAST: { p = sqlite3MallocZero( sizeof(*p) ); if( p ){ pthread_mutex_init(&p->mutex, 0); } break; } default: { #ifdef SQLITE_ENABLE_API_ARMOR if( iType-2<0 || iType-2>=ArraySize(staticMutexes) ){ (void)SQLITE_MISUSE_BKPT; return 0; } #endif p = &staticMutexes[iType-2]; break; } } #if SQLITE_MUTEX_NREF || defined(SQLITE_ENABLE_API_ARMOR) if( p ) p->id = iType; #endif return p; } /* ** This routine deallocates a previously ** allocated mutex. SQLite is careful to deallocate every ** mutex that it allocates. */ static void pthreadMutexFree(sqlite3_mutex *p){ assert( p->nRef==0 ); #if SQLITE_ENABLE_API_ARMOR if( p->id==SQLITE_MUTEX_FAST || p->id==SQLITE_MUTEX_RECURSIVE ) #endif { pthread_mutex_destroy(&p->mutex); sqlite3_free(p); } #ifdef SQLITE_ENABLE_API_ARMOR else{ (void)SQLITE_MISUSE_BKPT; } #endif } /* ** The sqlite3_mutex_enter() and sqlite3_mutex_try() routines attempt ** to enter a mutex. If another thread is already within the mutex, ** sqlite3_mutex_enter() will block and sqlite3_mutex_try() will return ** SQLITE_BUSY. The sqlite3_mutex_try() interface returns SQLITE_OK |
︙ | ︙ | |||
19868 19869 19870 19871 19872 19873 19874 19875 19876 19877 19878 19879 19880 19881 | */ #if SQLITE_OS_WINCE # define SQLITE_WIN32_VOLATILE #else # define SQLITE_WIN32_VOLATILE volatile #endif #endif /* _OS_WIN_H_ */ /************** End of os_win.h **********************************************/ /************** Continuing where we left off in mutex_w32.c ******************/ #endif /* | > > > > > > > > > > > | 20062 20063 20064 20065 20066 20067 20068 20069 20070 20071 20072 20073 20074 20075 20076 20077 20078 20079 20080 20081 20082 20083 20084 20085 20086 | */ #if SQLITE_OS_WINCE # define SQLITE_WIN32_VOLATILE #else # define SQLITE_WIN32_VOLATILE volatile #endif /* ** For some Windows sub-platforms, the _beginthreadex() / _endthreadex() ** functions are not available (e.g. those not using MSVC, Cygwin, etc). */ #if SQLITE_OS_WIN && !SQLITE_OS_WINCE && !SQLITE_OS_WINRT && \ SQLITE_THREADSAFE>0 && !defined(__CYGWIN__) # define SQLITE_OS_WIN_THREADS 1 #else # define SQLITE_OS_WIN_THREADS 0 #endif #endif /* _OS_WIN_H_ */ /************** End of os_win.h **********************************************/ /************** Continuing where we left off in mutex_w32.c ******************/ #endif /* |
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19950 19951 19952 19953 19954 19955 19956 | /* As the winMutexInit() and winMutexEnd() functions are called as part ** of the sqlite3_initialize() and sqlite3_shutdown() processing, the ** "interlocked" magic used here is probably not strictly necessary. */ static LONG SQLITE_WIN32_VOLATILE winMutex_lock = 0; | | | | 20155 20156 20157 20158 20159 20160 20161 20162 20163 20164 20165 20166 20167 20168 20169 20170 | /* As the winMutexInit() and winMutexEnd() functions are called as part ** of the sqlite3_initialize() and sqlite3_shutdown() processing, the ** "interlocked" magic used here is probably not strictly necessary. */ static LONG SQLITE_WIN32_VOLATILE winMutex_lock = 0; SQLITE_API int SQLITE_STDCALL sqlite3_win32_is_nt(void); /* os_win.c */ SQLITE_API void SQLITE_STDCALL sqlite3_win32_sleep(DWORD milliseconds); /* os_win.c */ static int winMutexInit(void){ /* The first to increment to 1 does actual initialization */ if( InterlockedCompareExchange(&winMutex_lock, 1, 0)==0 ){ int i; for(i=0; i<ArraySize(winMutex_staticMutexes); i++){ #if SQLITE_OS_WINRT |
︙ | ︙ | |||
20043 20044 20045 20046 20047 20048 20049 | sqlite3_mutex *p; switch( iType ){ case SQLITE_MUTEX_FAST: case SQLITE_MUTEX_RECURSIVE: { p = sqlite3MallocZero( sizeof(*p) ); if( p ){ | < > < < < < > < | < < | | > > > > > | 20248 20249 20250 20251 20252 20253 20254 20255 20256 20257 20258 20259 20260 20261 20262 20263 20264 20265 20266 20267 20268 20269 20270 20271 20272 20273 20274 20275 20276 20277 20278 20279 20280 20281 20282 20283 20284 20285 20286 20287 20288 20289 20290 20291 20292 20293 20294 20295 20296 20297 20298 20299 20300 20301 20302 20303 20304 20305 20306 20307 20308 20309 20310 20311 20312 | sqlite3_mutex *p; switch( iType ){ case SQLITE_MUTEX_FAST: case SQLITE_MUTEX_RECURSIVE: { p = sqlite3MallocZero( sizeof(*p) ); if( p ){ p->id = iType; #ifdef SQLITE_DEBUG #ifdef SQLITE_WIN32_MUTEX_TRACE_DYNAMIC p->trace = 1; #endif #endif #if SQLITE_OS_WINRT InitializeCriticalSectionEx(&p->mutex, 0, 0); #else InitializeCriticalSection(&p->mutex); #endif } break; } default: { #ifdef SQLITE_ENABLE_API_ARMOR if( iType-2<0 || iType-2>=ArraySize(winMutex_staticMutexes) ){ (void)SQLITE_MISUSE_BKPT; return 0; } #endif p = &winMutex_staticMutexes[iType-2]; p->id = iType; #ifdef SQLITE_DEBUG #ifdef SQLITE_WIN32_MUTEX_TRACE_STATIC p->trace = 1; #endif #endif break; } } return p; } /* ** This routine deallocates a previously ** allocated mutex. SQLite is careful to deallocate every ** mutex that it allocates. */ static void winMutexFree(sqlite3_mutex *p){ assert( p ); assert( p->nRef==0 && p->owner==0 ); if( p->id==SQLITE_MUTEX_FAST || p->id==SQLITE_MUTEX_RECURSIVE ){ DeleteCriticalSection(&p->mutex); sqlite3_free(p); }else{ #ifdef SQLITE_ENABLE_API_ARMOR (void)SQLITE_MISUSE_BKPT; #endif } } /* ** The sqlite3_mutex_enter() and sqlite3_mutex_try() routines attempt ** to enter a mutex. If another thread is already within the mutex, ** sqlite3_mutex_enter() will block and sqlite3_mutex_try() will return ** SQLITE_BUSY. The sqlite3_mutex_try() interface returns SQLITE_OK |
︙ | ︙ | |||
20248 20249 20250 20251 20252 20253 20254 | /* #include <stdarg.h> */ /* ** Attempt to release up to n bytes of non-essential memory currently ** held by SQLite. An example of non-essential memory is memory used to ** cache database pages that are not currently in use. */ | | | 20452 20453 20454 20455 20456 20457 20458 20459 20460 20461 20462 20463 20464 20465 20466 | /* #include <stdarg.h> */ /* ** Attempt to release up to n bytes of non-essential memory currently ** held by SQLite. An example of non-essential memory is memory used to ** cache database pages that are not currently in use. */ SQLITE_API int SQLITE_STDCALL sqlite3_release_memory(int n){ #ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT return sqlite3PcacheReleaseMemory(n); #else /* IMPLEMENTATION-OF: R-34391-24921 The sqlite3_release_memory() routine ** is a no-op returning zero if SQLite is not compiled with ** SQLITE_ENABLE_MEMORY_MANAGEMENT. */ UNUSED_PARAMETER(n); |
︙ | ︙ | |||
20302 20303 20304 20305 20306 20307 20308 20309 20310 20311 20312 20313 20314 20315 | ** True if heap is nearly "full" where "full" is defined by the ** sqlite3_soft_heap_limit() setting. */ int nearlyFull; } mem0 = { 0, 0, 0, 0, 0, 0, 0, 0 }; #define mem0 GLOBAL(struct Mem0Global, mem0) /* ** This routine runs when the memory allocator sees that the ** total memory allocation is about to exceed the soft heap ** limit. */ static void softHeapLimitEnforcer( | > > > > > > > | 20506 20507 20508 20509 20510 20511 20512 20513 20514 20515 20516 20517 20518 20519 20520 20521 20522 20523 20524 20525 20526 | ** True if heap is nearly "full" where "full" is defined by the ** sqlite3_soft_heap_limit() setting. */ int nearlyFull; } mem0 = { 0, 0, 0, 0, 0, 0, 0, 0 }; #define mem0 GLOBAL(struct Mem0Global, mem0) /* ** Return the memory allocator mutex. sqlite3_status() needs it. */ SQLITE_PRIVATE sqlite3_mutex *sqlite3MallocMutex(void){ return mem0.mutex; } /* ** This routine runs when the memory allocator sees that the ** total memory allocation is about to exceed the soft heap ** limit. */ static void softHeapLimitEnforcer( |
︙ | ︙ | |||
20325 20326 20327 20328 20329 20330 20331 | ** Change the alarm callback */ static int sqlite3MemoryAlarm( void(*xCallback)(void *pArg, sqlite3_int64 used,int N), void *pArg, sqlite3_int64 iThreshold ){ | | | | | > | 20536 20537 20538 20539 20540 20541 20542 20543 20544 20545 20546 20547 20548 20549 20550 20551 20552 20553 20554 20555 20556 20557 20558 20559 20560 20561 20562 20563 20564 20565 20566 20567 20568 20569 20570 20571 20572 20573 20574 20575 20576 20577 20578 20579 20580 20581 20582 20583 20584 20585 20586 20587 20588 20589 20590 20591 20592 20593 20594 20595 20596 20597 20598 20599 20600 20601 20602 20603 20604 20605 20606 20607 20608 | ** Change the alarm callback */ static int sqlite3MemoryAlarm( void(*xCallback)(void *pArg, sqlite3_int64 used,int N), void *pArg, sqlite3_int64 iThreshold ){ sqlite3_int64 nUsed; sqlite3_mutex_enter(mem0.mutex); mem0.alarmCallback = xCallback; mem0.alarmArg = pArg; mem0.alarmThreshold = iThreshold; nUsed = sqlite3StatusValue(SQLITE_STATUS_MEMORY_USED); mem0.nearlyFull = (iThreshold>0 && iThreshold<=nUsed); sqlite3_mutex_leave(mem0.mutex); return SQLITE_OK; } #ifndef SQLITE_OMIT_DEPRECATED /* ** Deprecated external interface. Internal/core SQLite code ** should call sqlite3MemoryAlarm. */ SQLITE_API int SQLITE_STDCALL sqlite3_memory_alarm( void(*xCallback)(void *pArg, sqlite3_int64 used,int N), void *pArg, sqlite3_int64 iThreshold ){ return sqlite3MemoryAlarm(xCallback, pArg, iThreshold); } #endif /* ** Set the soft heap-size limit for the library. Passing a zero or ** negative value indicates no limit. */ SQLITE_API sqlite3_int64 SQLITE_STDCALL sqlite3_soft_heap_limit64(sqlite3_int64 n){ sqlite3_int64 priorLimit; sqlite3_int64 excess; #ifndef SQLITE_OMIT_AUTOINIT int rc = sqlite3_initialize(); if( rc ) return -1; #endif sqlite3_mutex_enter(mem0.mutex); priorLimit = mem0.alarmThreshold; sqlite3_mutex_leave(mem0.mutex); if( n<0 ) return priorLimit; if( n>0 ){ sqlite3MemoryAlarm(softHeapLimitEnforcer, 0, n); }else{ sqlite3MemoryAlarm(0, 0, 0); } excess = sqlite3_memory_used() - n; if( excess>0 ) sqlite3_release_memory((int)(excess & 0x7fffffff)); return priorLimit; } SQLITE_API void SQLITE_STDCALL sqlite3_soft_heap_limit(int n){ if( n<0 ) n = 0; sqlite3_soft_heap_limit64(n); } /* ** Initialize the memory allocation subsystem. */ SQLITE_PRIVATE int sqlite3MallocInit(void){ int rc; if( sqlite3GlobalConfig.m.xMalloc==0 ){ sqlite3MemSetDefault(); } memset(&mem0, 0, sizeof(mem0)); if( sqlite3GlobalConfig.bCoreMutex ){ mem0.mutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MEM); } |
︙ | ︙ | |||
20418 20419 20420 20421 20422 20423 20424 | } if( sqlite3GlobalConfig.pPage==0 || sqlite3GlobalConfig.szPage<512 || sqlite3GlobalConfig.nPage<1 ){ sqlite3GlobalConfig.pPage = 0; sqlite3GlobalConfig.szPage = 0; sqlite3GlobalConfig.nPage = 0; } | | > > | 20630 20631 20632 20633 20634 20635 20636 20637 20638 20639 20640 20641 20642 20643 20644 20645 20646 | } if( sqlite3GlobalConfig.pPage==0 || sqlite3GlobalConfig.szPage<512 || sqlite3GlobalConfig.nPage<1 ){ sqlite3GlobalConfig.pPage = 0; sqlite3GlobalConfig.szPage = 0; sqlite3GlobalConfig.nPage = 0; } rc = sqlite3GlobalConfig.m.xInit(sqlite3GlobalConfig.m.pAppData); if( rc!=SQLITE_OK ) memset(&mem0, 0, sizeof(mem0)); return rc; } /* ** Return true if the heap is currently under memory pressure - in other ** words if the amount of heap used is close to the limit set by ** sqlite3_soft_heap_limit(). */ |
︙ | ︙ | |||
20443 20444 20445 20446 20447 20448 20449 | } memset(&mem0, 0, sizeof(mem0)); } /* ** Return the amount of memory currently checked out. */ | | | | 20657 20658 20659 20660 20661 20662 20663 20664 20665 20666 20667 20668 20669 20670 20671 20672 20673 20674 20675 20676 20677 20678 20679 20680 20681 20682 20683 20684 | } memset(&mem0, 0, sizeof(mem0)); } /* ** Return the amount of memory currently checked out. */ SQLITE_API sqlite3_int64 SQLITE_STDCALL sqlite3_memory_used(void){ int n, mx; sqlite3_int64 res; sqlite3_status(SQLITE_STATUS_MEMORY_USED, &n, &mx, 0); res = (sqlite3_int64)n; /* Work around bug in Borland C. Ticket #3216 */ return res; } /* ** Return the maximum amount of memory that has ever been ** checked out since either the beginning of this process ** or since the most recent reset. */ SQLITE_API sqlite3_int64 SQLITE_STDCALL sqlite3_memory_highwater(int resetFlag){ int n, mx; sqlite3_int64 res; sqlite3_status(SQLITE_STATUS_MEMORY_USED, &n, &mx, resetFlag); res = (sqlite3_int64)mx; /* Work around bug in Borland C. Ticket #3216 */ return res; } |
︙ | ︙ | |||
20494 20495 20496 20497 20498 20499 20500 | static int mallocWithAlarm(int n, void **pp){ int nFull; void *p; assert( sqlite3_mutex_held(mem0.mutex) ); nFull = sqlite3GlobalConfig.m.xRoundup(n); sqlite3StatusSet(SQLITE_STATUS_MALLOC_SIZE, n); if( mem0.alarmCallback!=0 ){ | | | | | 20708 20709 20710 20711 20712 20713 20714 20715 20716 20717 20718 20719 20720 20721 20722 20723 20724 20725 20726 20727 20728 20729 20730 20731 20732 20733 20734 20735 20736 20737 20738 20739 20740 | static int mallocWithAlarm(int n, void **pp){ int nFull; void *p; assert( sqlite3_mutex_held(mem0.mutex) ); nFull = sqlite3GlobalConfig.m.xRoundup(n); sqlite3StatusSet(SQLITE_STATUS_MALLOC_SIZE, n); if( mem0.alarmCallback!=0 ){ sqlite3_int64 nUsed = sqlite3StatusValue(SQLITE_STATUS_MEMORY_USED); if( nUsed >= mem0.alarmThreshold - nFull ){ mem0.nearlyFull = 1; sqlite3MallocAlarm(nFull); }else{ mem0.nearlyFull = 0; } } p = sqlite3GlobalConfig.m.xMalloc(nFull); #ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT if( p==0 && mem0.alarmCallback ){ sqlite3MallocAlarm(nFull); p = sqlite3GlobalConfig.m.xMalloc(nFull); } #endif if( p ){ nFull = sqlite3MallocSize(p); sqlite3StatusUp(SQLITE_STATUS_MEMORY_USED, nFull); sqlite3StatusUp(SQLITE_STATUS_MALLOC_COUNT, 1); } *pp = p; return nFull; } /* ** Allocate memory. This routine is like sqlite3_malloc() except that it |
︙ | ︙ | |||
20547 20548 20549 20550 20551 20552 20553 | } /* ** This version of the memory allocation is for use by the application. ** First make sure the memory subsystem is initialized, then do the ** allocation. */ | | | | 20761 20762 20763 20764 20765 20766 20767 20768 20769 20770 20771 20772 20773 20774 20775 20776 20777 20778 20779 20780 20781 | } /* ** This version of the memory allocation is for use by the application. ** First make sure the memory subsystem is initialized, then do the ** allocation. */ SQLITE_API void *SQLITE_STDCALL sqlite3_malloc(int n){ #ifndef SQLITE_OMIT_AUTOINIT if( sqlite3_initialize() ) return 0; #endif return n<=0 ? 0 : sqlite3Malloc(n); } SQLITE_API void *SQLITE_STDCALL sqlite3_malloc64(sqlite3_uint64 n){ #ifndef SQLITE_OMIT_AUTOINIT if( sqlite3_initialize() ) return 0; #endif return sqlite3Malloc(n); } /* |
︙ | ︙ | |||
20589 20590 20591 20592 20593 20594 20595 | sqlite3_mutex_enter(mem0.mutex); sqlite3StatusSet(SQLITE_STATUS_SCRATCH_SIZE, n); if( mem0.nScratchFree && sqlite3GlobalConfig.szScratch>=n ){ p = mem0.pScratchFree; mem0.pScratchFree = mem0.pScratchFree->pNext; mem0.nScratchFree--; | | | | 20803 20804 20805 20806 20807 20808 20809 20810 20811 20812 20813 20814 20815 20816 20817 20818 20819 20820 20821 20822 20823 20824 | sqlite3_mutex_enter(mem0.mutex); sqlite3StatusSet(SQLITE_STATUS_SCRATCH_SIZE, n); if( mem0.nScratchFree && sqlite3GlobalConfig.szScratch>=n ){ p = mem0.pScratchFree; mem0.pScratchFree = mem0.pScratchFree->pNext; mem0.nScratchFree--; sqlite3StatusUp(SQLITE_STATUS_SCRATCH_USED, 1); sqlite3_mutex_leave(mem0.mutex); }else{ sqlite3_mutex_leave(mem0.mutex); p = sqlite3Malloc(n); if( sqlite3GlobalConfig.bMemstat && p ){ sqlite3_mutex_enter(mem0.mutex); sqlite3StatusUp(SQLITE_STATUS_SCRATCH_OVERFLOW, sqlite3MallocSize(p)); sqlite3_mutex_leave(mem0.mutex); } sqlite3MemdebugSetType(p, MEMTYPE_SCRATCH); } assert( sqlite3_mutex_notheld(mem0.mutex) ); |
︙ | ︙ | |||
20637 20638 20639 20640 20641 20642 20643 | ScratchFreeslot *pSlot; pSlot = (ScratchFreeslot*)p; sqlite3_mutex_enter(mem0.mutex); pSlot->pNext = mem0.pScratchFree; mem0.pScratchFree = pSlot; mem0.nScratchFree++; assert( mem0.nScratchFree <= (u32)sqlite3GlobalConfig.nScratch ); | | | | | | | 20851 20852 20853 20854 20855 20856 20857 20858 20859 20860 20861 20862 20863 20864 20865 20866 20867 20868 20869 20870 20871 20872 20873 20874 20875 20876 20877 | ScratchFreeslot *pSlot; pSlot = (ScratchFreeslot*)p; sqlite3_mutex_enter(mem0.mutex); pSlot->pNext = mem0.pScratchFree; mem0.pScratchFree = pSlot; mem0.nScratchFree++; assert( mem0.nScratchFree <= (u32)sqlite3GlobalConfig.nScratch ); sqlite3StatusDown(SQLITE_STATUS_SCRATCH_USED, 1); sqlite3_mutex_leave(mem0.mutex); }else{ /* Release memory back to the heap */ assert( sqlite3MemdebugHasType(p, MEMTYPE_SCRATCH) ); assert( sqlite3MemdebugNoType(p, (u8)~MEMTYPE_SCRATCH) ); sqlite3MemdebugSetType(p, MEMTYPE_HEAP); if( sqlite3GlobalConfig.bMemstat ){ int iSize = sqlite3MallocSize(p); sqlite3_mutex_enter(mem0.mutex); sqlite3StatusDown(SQLITE_STATUS_SCRATCH_OVERFLOW, iSize); sqlite3StatusDown(SQLITE_STATUS_MEMORY_USED, iSize); sqlite3StatusDown(SQLITE_STATUS_MALLOC_COUNT, 1); sqlite3GlobalConfig.m.xFree(p); sqlite3_mutex_leave(mem0.mutex); }else{ sqlite3GlobalConfig.m.xFree(p); } } } |
︙ | ︙ | |||
20680 20681 20682 20683 20684 20685 20686 | */ SQLITE_PRIVATE int sqlite3MallocSize(void *p){ assert( sqlite3MemdebugHasType(p, MEMTYPE_HEAP) ); return sqlite3GlobalConfig.m.xSize(p); } SQLITE_PRIVATE int sqlite3DbMallocSize(sqlite3 *db, void *p){ if( db==0 ){ | | | | | | | | | | 20894 20895 20896 20897 20898 20899 20900 20901 20902 20903 20904 20905 20906 20907 20908 20909 20910 20911 20912 20913 20914 20915 20916 20917 20918 20919 20920 20921 20922 20923 20924 20925 20926 20927 20928 20929 20930 20931 20932 20933 20934 20935 20936 20937 20938 | */ SQLITE_PRIVATE int sqlite3MallocSize(void *p){ assert( sqlite3MemdebugHasType(p, MEMTYPE_HEAP) ); return sqlite3GlobalConfig.m.xSize(p); } SQLITE_PRIVATE int sqlite3DbMallocSize(sqlite3 *db, void *p){ if( db==0 ){ assert( sqlite3MemdebugNoType(p, (u8)~MEMTYPE_HEAP) ); assert( sqlite3MemdebugHasType(p, MEMTYPE_HEAP) ); return sqlite3MallocSize(p); }else{ assert( sqlite3_mutex_held(db->mutex) ); if( isLookaside(db, p) ){ return db->lookaside.sz; }else{ assert( sqlite3MemdebugHasType(p, (MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) ); assert( sqlite3MemdebugNoType(p, (u8)~(MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) ); return sqlite3GlobalConfig.m.xSize(p); } } } SQLITE_API sqlite3_uint64 SQLITE_STDCALL sqlite3_msize(void *p){ assert( sqlite3MemdebugNoType(p, (u8)~MEMTYPE_HEAP) ); assert( sqlite3MemdebugHasType(p, MEMTYPE_HEAP) ); return (sqlite3_uint64)sqlite3GlobalConfig.m.xSize(p); } /* ** Free memory previously obtained from sqlite3Malloc(). */ SQLITE_API void SQLITE_STDCALL sqlite3_free(void *p){ if( p==0 ) return; /* IMP: R-49053-54554 */ assert( sqlite3MemdebugHasType(p, MEMTYPE_HEAP) ); assert( sqlite3MemdebugNoType(p, (u8)~MEMTYPE_HEAP) ); if( sqlite3GlobalConfig.bMemstat ){ sqlite3_mutex_enter(mem0.mutex); sqlite3StatusDown(SQLITE_STATUS_MEMORY_USED, sqlite3MallocSize(p)); sqlite3StatusDown(SQLITE_STATUS_MALLOC_COUNT, 1); sqlite3GlobalConfig.m.xFree(p); sqlite3_mutex_leave(mem0.mutex); }else{ sqlite3GlobalConfig.m.xFree(p); } } |
︙ | ︙ | |||
20751 20752 20753 20754 20755 20756 20757 | pBuf->pNext = db->lookaside.pFree; db->lookaside.pFree = pBuf; db->lookaside.nOut--; return; } } assert( sqlite3MemdebugHasType(p, (MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) ); | | | | 20965 20966 20967 20968 20969 20970 20971 20972 20973 20974 20975 20976 20977 20978 20979 20980 20981 20982 20983 20984 20985 20986 20987 20988 20989 20990 20991 20992 | pBuf->pNext = db->lookaside.pFree; db->lookaside.pFree = pBuf; db->lookaside.nOut--; return; } } assert( sqlite3MemdebugHasType(p, (MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) ); assert( sqlite3MemdebugNoType(p, (u8)~(MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) ); assert( db!=0 || sqlite3MemdebugNoType(p, MEMTYPE_LOOKASIDE) ); sqlite3MemdebugSetType(p, MEMTYPE_HEAP); sqlite3_free(p); } /* ** Change the size of an existing memory allocation */ SQLITE_PRIVATE void *sqlite3Realloc(void *pOld, u64 nBytes){ int nOld, nNew, nDiff; void *pNew; assert( sqlite3MemdebugHasType(pOld, MEMTYPE_HEAP) ); assert( sqlite3MemdebugNoType(pOld, (u8)~MEMTYPE_HEAP) ); if( pOld==0 ){ return sqlite3Malloc(nBytes); /* IMP: R-04300-56712 */ } if( nBytes==0 ){ sqlite3_free(pOld); /* IMP: R-26507-47431 */ return 0; } |
︙ | ︙ | |||
20798 20799 20800 20801 20802 20803 20804 | pNew = sqlite3GlobalConfig.m.xRealloc(pOld, nNew); if( pNew==0 && mem0.alarmCallback ){ sqlite3MallocAlarm((int)nBytes); pNew = sqlite3GlobalConfig.m.xRealloc(pOld, nNew); } if( pNew ){ nNew = sqlite3MallocSize(pNew); | | | | | 21012 21013 21014 21015 21016 21017 21018 21019 21020 21021 21022 21023 21024 21025 21026 21027 21028 21029 21030 21031 21032 21033 21034 21035 21036 21037 21038 21039 21040 21041 21042 21043 21044 21045 21046 21047 | pNew = sqlite3GlobalConfig.m.xRealloc(pOld, nNew); if( pNew==0 && mem0.alarmCallback ){ sqlite3MallocAlarm((int)nBytes); pNew = sqlite3GlobalConfig.m.xRealloc(pOld, nNew); } if( pNew ){ nNew = sqlite3MallocSize(pNew); sqlite3StatusUp(SQLITE_STATUS_MEMORY_USED, nNew-nOld); } sqlite3_mutex_leave(mem0.mutex); }else{ pNew = sqlite3GlobalConfig.m.xRealloc(pOld, nNew); } assert( EIGHT_BYTE_ALIGNMENT(pNew) ); /* IMP: R-11148-40995 */ return pNew; } /* ** The public interface to sqlite3Realloc. Make sure that the memory ** subsystem is initialized prior to invoking sqliteRealloc. */ SQLITE_API void *SQLITE_STDCALL sqlite3_realloc(void *pOld, int n){ #ifndef SQLITE_OMIT_AUTOINIT if( sqlite3_initialize() ) return 0; #endif if( n<0 ) n = 0; /* IMP: R-26507-47431 */ return sqlite3Realloc(pOld, n); } SQLITE_API void *SQLITE_STDCALL sqlite3_realloc64(void *pOld, sqlite3_uint64 n){ #ifndef SQLITE_OMIT_AUTOINIT if( sqlite3_initialize() ) return 0; #endif return sqlite3Realloc(pOld, n); } |
︙ | ︙ | |||
20931 20932 20933 20934 20935 20936 20937 | pNew = sqlite3DbMallocRaw(db, n); if( pNew ){ memcpy(pNew, p, db->lookaside.sz); sqlite3DbFree(db, p); } }else{ assert( sqlite3MemdebugHasType(p, (MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) ); | | | 21145 21146 21147 21148 21149 21150 21151 21152 21153 21154 21155 21156 21157 21158 21159 | pNew = sqlite3DbMallocRaw(db, n); if( pNew ){ memcpy(pNew, p, db->lookaside.sz); sqlite3DbFree(db, p); } }else{ assert( sqlite3MemdebugHasType(p, (MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) ); assert( sqlite3MemdebugNoType(p, (u8)~(MEMTYPE_LOOKASIDE|MEMTYPE_HEAP)) ); sqlite3MemdebugSetType(p, MEMTYPE_HEAP); pNew = sqlite3_realloc64(p, n); if( !pNew ){ db->mallocFailed = 1; } sqlite3MemdebugSetType(pNew, (db->lookaside.bEnabled ? MEMTYPE_LOOKASIDE : MEMTYPE_HEAP)); |
︙ | ︙ | |||
21258 21259 21260 21261 21262 21263 21264 | double rounder; /* Used for rounding floating point values */ etByte flag_dp; /* True if decimal point should be shown */ etByte flag_rtz; /* True if trailing zeros should be removed */ #endif PrintfArguments *pArgList = 0; /* Arguments for SQLITE_PRINTF_SQLFUNC */ char buf[etBUFSIZE]; /* Conversion buffer */ | < < < < < < < | 21472 21473 21474 21475 21476 21477 21478 21479 21480 21481 21482 21483 21484 21485 | double rounder; /* Used for rounding floating point values */ etByte flag_dp; /* True if decimal point should be shown */ etByte flag_rtz; /* True if trailing zeros should be removed */ #endif PrintfArguments *pArgList = 0; /* Arguments for SQLITE_PRINTF_SQLFUNC */ char buf[etBUFSIZE]; /* Conversion buffer */ bufpt = 0; if( bFlags ){ if( (bArgList = (bFlags & SQLITE_PRINTF_SQLFUNC))!=0 ){ pArgList = va_arg(ap, PrintfArguments*); } useIntern = bFlags & SQLITE_PRINTF_INTERNAL; }else{ |
︙ | ︙ | |||
21992 21993 21994 21995 21996 21997 21998 | return z; } /* ** Print into memory obtained from sqlite3_malloc(). Omit the internal ** %-conversion extensions. */ | | | 22199 22200 22201 22202 22203 22204 22205 22206 22207 22208 22209 22210 22211 22212 22213 | return z; } /* ** Print into memory obtained from sqlite3_malloc(). Omit the internal ** %-conversion extensions. */ SQLITE_API char *SQLITE_STDCALL sqlite3_vmprintf(const char *zFormat, va_list ap){ char *z; char zBase[SQLITE_PRINT_BUF_SIZE]; StrAccum acc; #ifdef SQLITE_ENABLE_API_ARMOR if( zFormat==0 ){ (void)SQLITE_MISUSE_BKPT; |
︙ | ︙ | |||
22017 22018 22019 22020 22021 22022 22023 | return z; } /* ** Print into memory obtained from sqlite3_malloc()(). Omit the internal ** %-conversion extensions. */ | | | 22224 22225 22226 22227 22228 22229 22230 22231 22232 22233 22234 22235 22236 22237 22238 | return z; } /* ** Print into memory obtained from sqlite3_malloc()(). Omit the internal ** %-conversion extensions. */ SQLITE_API char *SQLITE_CDECL sqlite3_mprintf(const char *zFormat, ...){ va_list ap; char *z; #ifndef SQLITE_OMIT_AUTOINIT if( sqlite3_initialize() ) return 0; #endif va_start(ap, zFormat); z = sqlite3_vmprintf(zFormat, ap); |
︙ | ︙ | |||
22042 22043 22044 22045 22046 22047 22048 | ** Oops: The first two arguments of sqlite3_snprintf() are backwards ** from the snprintf() standard. Unfortunately, it is too late to change ** this without breaking compatibility, so we just have to live with the ** mistake. ** ** sqlite3_vsnprintf() is the varargs version. */ | | | | | 22249 22250 22251 22252 22253 22254 22255 22256 22257 22258 22259 22260 22261 22262 22263 22264 22265 22266 22267 22268 22269 22270 22271 22272 22273 22274 22275 22276 22277 22278 | ** Oops: The first two arguments of sqlite3_snprintf() are backwards ** from the snprintf() standard. Unfortunately, it is too late to change ** this without breaking compatibility, so we just have to live with the ** mistake. ** ** sqlite3_vsnprintf() is the varargs version. */ SQLITE_API char *SQLITE_STDCALL sqlite3_vsnprintf(int n, char *zBuf, const char *zFormat, va_list ap){ StrAccum acc; if( n<=0 ) return zBuf; #ifdef SQLITE_ENABLE_API_ARMOR if( zBuf==0 || zFormat==0 ) { (void)SQLITE_MISUSE_BKPT; if( zBuf ) zBuf[0] = 0; return zBuf; } #endif sqlite3StrAccumInit(&acc, zBuf, n, 0); acc.useMalloc = 0; sqlite3VXPrintf(&acc, 0, zFormat, ap); return sqlite3StrAccumFinish(&acc); } SQLITE_API char *SQLITE_CDECL sqlite3_snprintf(int n, char *zBuf, const char *zFormat, ...){ char *z; va_list ap; va_start(ap,zFormat); z = sqlite3_vsnprintf(n, zBuf, zFormat, ap); va_end(ap); return z; } |
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22089 22090 22091 22092 22093 22094 22095 | sqlite3GlobalConfig.xLog(sqlite3GlobalConfig.pLogArg, iErrCode, sqlite3StrAccumFinish(&acc)); } /* ** Format and write a message to the log if logging is enabled. */ | | | 22296 22297 22298 22299 22300 22301 22302 22303 22304 22305 22306 22307 22308 22309 22310 | sqlite3GlobalConfig.xLog(sqlite3GlobalConfig.pLogArg, iErrCode, sqlite3StrAccumFinish(&acc)); } /* ** Format and write a message to the log if logging is enabled. */ SQLITE_API void SQLITE_CDECL sqlite3_log(int iErrCode, const char *zFormat, ...){ va_list ap; /* Vararg list */ if( sqlite3GlobalConfig.xLog ){ va_start(ap, zFormat); renderLogMsg(iErrCode, zFormat, ap); va_end(ap); } } |
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22225 22226 22227 22228 22229 22230 22231 | unsigned char i, j; /* State variables */ unsigned char s[256]; /* State variables */ } sqlite3Prng; /* ** Return N random bytes. */ | | | 22432 22433 22434 22435 22436 22437 22438 22439 22440 22441 22442 22443 22444 22445 22446 | unsigned char i, j; /* State variables */ unsigned char s[256]; /* State variables */ } sqlite3Prng; /* ** Return N random bytes. */ SQLITE_API void SQLITE_STDCALL sqlite3_randomness(int N, void *pBuf){ unsigned char t; unsigned char *zBuf = pBuf; /* The "wsdPrng" macro will resolve to the pseudo-random number generator ** state vector. If writable static data is unsupported on the target, ** we have to locate the state vector at run-time. In the more common ** case where writable static data is supported, wsdPrng can refer directly |
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22431 22432 22433 22434 22435 22436 22437 | } #endif /* SQLITE_OS_UNIX && defined(SQLITE_MUTEX_PTHREADS) */ /******************************** End Unix Pthreads *************************/ /********************************* Win32 Threads ****************************/ | | | 22638 22639 22640 22641 22642 22643 22644 22645 22646 22647 22648 22649 22650 22651 22652 | } #endif /* SQLITE_OS_UNIX && defined(SQLITE_MUTEX_PTHREADS) */ /******************************** End Unix Pthreads *************************/ /********************************* Win32 Threads ****************************/ #if SQLITE_OS_WIN_THREADS #define SQLITE_THREADS_IMPLEMENTED 1 /* Prevent the single-thread code below */ #include <process.h> /* A running thread */ struct SQLiteThread { void *tid; /* The thread handle */ |
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22524 22525 22526 22527 22528 22529 22530 | assert( bRc ); } if( rc==WAIT_OBJECT_0 ) *ppOut = p->pResult; sqlite3_free(p); return (rc==WAIT_OBJECT_0) ? SQLITE_OK : SQLITE_ERROR; } | | | 22731 22732 22733 22734 22735 22736 22737 22738 22739 22740 22741 22742 22743 22744 22745 | assert( bRc ); } if( rc==WAIT_OBJECT_0 ) *ppOut = p->pResult; sqlite3_free(p); return (rc==WAIT_OBJECT_0) ? SQLITE_OK : SQLITE_ERROR; } #endif /* SQLITE_OS_WIN_THREADS */ /******************************** End Win32 Threads *************************/ /********************************* Single-Threaded **************************/ #ifndef SQLITE_THREADS_IMPLEMENTED /* ** This implementation does not actually create a new thread. It does the |
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23377 23378 23379 23380 23381 23382 23383 | ** ** IMPLEMENTATION-OF: R-30243-02494 The sqlite3_stricmp() and ** sqlite3_strnicmp() APIs allow applications and extensions to compare ** the contents of two buffers containing UTF-8 strings in a ** case-independent fashion, using the same definition of "case ** independence" that SQLite uses internally when comparing identifiers. */ | | | | 23584 23585 23586 23587 23588 23589 23590 23591 23592 23593 23594 23595 23596 23597 23598 23599 23600 23601 23602 23603 23604 23605 23606 23607 23608 23609 23610 | ** ** IMPLEMENTATION-OF: R-30243-02494 The sqlite3_stricmp() and ** sqlite3_strnicmp() APIs allow applications and extensions to compare ** the contents of two buffers containing UTF-8 strings in a ** case-independent fashion, using the same definition of "case ** independence" that SQLite uses internally when comparing identifiers. */ SQLITE_API int SQLITE_STDCALL sqlite3_stricmp(const char *zLeft, const char *zRight){ register unsigned char *a, *b; if( zLeft==0 ){ return zRight ? -1 : 0; }else if( zRight==0 ){ return 1; } a = (unsigned char *)zLeft; b = (unsigned char *)zRight; while( *a!=0 && UpperToLower[*a]==UpperToLower[*b]){ a++; b++; } return UpperToLower[*a] - UpperToLower[*b]; } SQLITE_API int SQLITE_STDCALL sqlite3_strnicmp(const char *zLeft, const char *zRight, int N){ register unsigned char *a, *b; if( zLeft==0 ){ return zRight ? -1 : 0; }else if( zRight==0 ){ return 1; } a = (unsigned char *)zLeft; |
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24920 24921 24922 24923 24924 24925 24926 | /* 132 */ "Param" OpHelp(""), /* 133 */ "Real" OpHelp("r[P2]=P4"), /* 134 */ "FkCounter" OpHelp("fkctr[P1]+=P2"), /* 135 */ "FkIfZero" OpHelp("if fkctr[P1]==0 goto P2"), /* 136 */ "MemMax" OpHelp("r[P1]=max(r[P1],r[P2])"), /* 137 */ "IfPos" OpHelp("if r[P1]>0 goto P2"), /* 138 */ "IfNeg" OpHelp("r[P1]+=P3, if r[P1]<0 goto P2"), | > | > | | | | | | | | | | | | | | | | | 25127 25128 25129 25130 25131 25132 25133 25134 25135 25136 25137 25138 25139 25140 25141 25142 25143 25144 25145 25146 25147 25148 25149 25150 25151 25152 25153 25154 25155 25156 25157 25158 25159 | /* 132 */ "Param" OpHelp(""), /* 133 */ "Real" OpHelp("r[P2]=P4"), /* 134 */ "FkCounter" OpHelp("fkctr[P1]+=P2"), /* 135 */ "FkIfZero" OpHelp("if fkctr[P1]==0 goto P2"), /* 136 */ "MemMax" OpHelp("r[P1]=max(r[P1],r[P2])"), /* 137 */ "IfPos" OpHelp("if r[P1]>0 goto P2"), /* 138 */ "IfNeg" OpHelp("r[P1]+=P3, if r[P1]<0 goto P2"), /* 139 */ "IfNotZero" OpHelp("if r[P1]!=0 then r[P1]+=P3, goto P2"), /* 140 */ "DecrJumpZero" OpHelp("if (--r[P1])==0 goto P2"), /* 141 */ "JumpZeroIncr" OpHelp("if (r[P1]++)==0 ) goto P2"), /* 142 */ "AggFinal" OpHelp("accum=r[P1] N=P2"), /* 143 */ "IncrVacuum" OpHelp(""), /* 144 */ "Expire" OpHelp(""), /* 145 */ "TableLock" OpHelp("iDb=P1 root=P2 write=P3"), /* 146 */ "VBegin" OpHelp(""), /* 147 */ "VCreate" OpHelp(""), /* 148 */ "VDestroy" OpHelp(""), /* 149 */ "VOpen" OpHelp(""), /* 150 */ "VColumn" OpHelp("r[P3]=vcolumn(P2)"), /* 151 */ "VNext" OpHelp(""), /* 152 */ "VRename" OpHelp(""), /* 153 */ "Pagecount" OpHelp(""), /* 154 */ "MaxPgcnt" OpHelp(""), /* 155 */ "Init" OpHelp("Start at P2"), /* 156 */ "Noop" OpHelp(""), /* 157 */ "Explain" OpHelp(""), }; return azName[i]; } #endif /************** End of opcodes.c *********************************************/ /************** Begin file os_unix.c *****************************************/ |
︙ | ︙ | |||
25016 25017 25018 25019 25020 25021 25022 | # if defined(__APPLE__) # define SQLITE_ENABLE_LOCKING_STYLE 1 # else # define SQLITE_ENABLE_LOCKING_STYLE 0 # endif #endif | < < < < < < < < < < < < | > > > > | > | | < < < | < | | 25225 25226 25227 25228 25229 25230 25231 25232 25233 25234 25235 25236 25237 25238 25239 25240 25241 25242 25243 25244 25245 25246 25247 25248 25249 25250 25251 25252 25253 25254 25255 25256 25257 25258 25259 25260 25261 25262 25263 25264 25265 | # if defined(__APPLE__) # define SQLITE_ENABLE_LOCKING_STYLE 1 # else # define SQLITE_ENABLE_LOCKING_STYLE 0 # endif #endif /* ** standard include files. */ #include <sys/types.h> #include <sys/stat.h> #include <fcntl.h> #include <unistd.h> /* #include <time.h> */ #include <sys/time.h> #include <errno.h> #if !defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0 # include <sys/mman.h> #endif #if SQLITE_ENABLE_LOCKING_STYLE # include <sys/ioctl.h> # include <sys/file.h> # include <sys/param.h> #endif /* SQLITE_ENABLE_LOCKING_STYLE */ #if OS_VXWORKS /* # include <sys/ioctl.h> */ # include <semaphore.h> # include <limits.h> #endif /* OS_VXWORKS */ #if defined(__APPLE__) || SQLITE_ENABLE_LOCKING_STYLE # include <sys/mount.h> #endif #ifdef HAVE_UTIME # include <utime.h> #endif |
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25093 25094 25095 25096 25097 25098 25099 25100 25101 25102 25103 25104 25105 25106 | # define SQLITE_DEFAULT_PROXYDIR_PERMISSIONS 0755 #endif /* ** Maximum supported path-length. */ #define MAX_PATHNAME 512 /* ** Only set the lastErrno if the error code is a real error and not ** a normal expected return code of SQLITE_BUSY or SQLITE_OK */ #define IS_LOCK_ERROR(x) ((x != SQLITE_OK) && (x != SQLITE_BUSY)) | > > > > | 25291 25292 25293 25294 25295 25296 25297 25298 25299 25300 25301 25302 25303 25304 25305 25306 25307 25308 | # define SQLITE_DEFAULT_PROXYDIR_PERMISSIONS 0755 #endif /* ** Maximum supported path-length. */ #define MAX_PATHNAME 512 /* Always cast the getpid() return type for compatibility with ** kernel modules in VxWorks. */ #define osGetpid(X) (pid_t)getpid() /* ** Only set the lastErrno if the error code is a real error and not ** a normal expected return code of SQLITE_BUSY or SQLITE_OK */ #define IS_LOCK_ERROR(x) ((x != SQLITE_OK) && (x != SQLITE_BUSY)) |
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25182 25183 25184 25185 25186 25187 25188 | #endif }; /* This variable holds the process id (pid) from when the xRandomness() ** method was called. If xOpen() is called from a different process id, ** indicating that a fork() has occurred, the PRNG will be reset. */ | | | > | 25384 25385 25386 25387 25388 25389 25390 25391 25392 25393 25394 25395 25396 25397 25398 25399 25400 25401 25402 25403 25404 25405 25406 25407 25408 25409 25410 25411 25412 25413 25414 25415 25416 | #endif }; /* This variable holds the process id (pid) from when the xRandomness() ** method was called. If xOpen() is called from a different process id, ** indicating that a fork() has occurred, the PRNG will be reset. */ static pid_t randomnessPid = 0; /* ** Allowed values for the unixFile.ctrlFlags bitmask: */ #define UNIXFILE_EXCL 0x01 /* Connections from one process only */ #define UNIXFILE_RDONLY 0x02 /* Connection is read only */ #define UNIXFILE_PERSIST_WAL 0x04 /* Persistent WAL mode */ #ifndef SQLITE_DISABLE_DIRSYNC # define UNIXFILE_DIRSYNC 0x08 /* Directory sync needed */ #else # define UNIXFILE_DIRSYNC 0x00 #endif #define UNIXFILE_PSOW 0x10 /* SQLITE_IOCAP_POWERSAFE_OVERWRITE */ #define UNIXFILE_DELETE 0x20 /* Delete on close */ #define UNIXFILE_URI 0x40 /* Filename might have query parameters */ #define UNIXFILE_NOLOCK 0x80 /* Do no file locking */ #define UNIXFILE_WARNED 0x0100 /* verifyDbFile() warnings issued */ #define UNIXFILE_BLOCK 0x0200 /* Next SHM lock might block */ /* ** Include code that is common to all os_*.c files */ /************** Include os_common.h in the middle of os_unix.c ***************/ /************** Begin file os_common.h ***************************************/ /* |
︙ | ︙ | |||
25538 25539 25540 25541 25542 25543 25544 | { "fcntl", (sqlite3_syscall_ptr)fcntl, 0 }, #define osFcntl ((int(*)(int,int,...))aSyscall[7].pCurrent) { "read", (sqlite3_syscall_ptr)read, 0 }, #define osRead ((ssize_t(*)(int,void*,size_t))aSyscall[8].pCurrent) | | | | 25741 25742 25743 25744 25745 25746 25747 25748 25749 25750 25751 25752 25753 25754 25755 25756 25757 25758 25759 25760 25761 25762 25763 25764 25765 25766 25767 25768 25769 25770 25771 25772 | { "fcntl", (sqlite3_syscall_ptr)fcntl, 0 }, #define osFcntl ((int(*)(int,int,...))aSyscall[7].pCurrent) { "read", (sqlite3_syscall_ptr)read, 0 }, #define osRead ((ssize_t(*)(int,void*,size_t))aSyscall[8].pCurrent) #if defined(USE_PREAD) || SQLITE_ENABLE_LOCKING_STYLE { "pread", (sqlite3_syscall_ptr)pread, 0 }, #else { "pread", (sqlite3_syscall_ptr)0, 0 }, #endif #define osPread ((ssize_t(*)(int,void*,size_t,off_t))aSyscall[9].pCurrent) #if defined(USE_PREAD64) { "pread64", (sqlite3_syscall_ptr)pread64, 0 }, #else { "pread64", (sqlite3_syscall_ptr)0, 0 }, #endif #define osPread64 ((ssize_t(*)(int,void*,size_t,off_t))aSyscall[10].pCurrent) { "write", (sqlite3_syscall_ptr)write, 0 }, #define osWrite ((ssize_t(*)(int,const void*,size_t))aSyscall[11].pCurrent) #if defined(USE_PREAD) || SQLITE_ENABLE_LOCKING_STYLE { "pwrite", (sqlite3_syscall_ptr)pwrite, 0 }, #else { "pwrite", (sqlite3_syscall_ptr)0, 0 }, #endif #define osPwrite ((ssize_t(*)(int,const void*,size_t,off_t))\ aSyscall[12].pCurrent) |
︙ | ︙ | |||
25870 25871 25872 25873 25874 25875 25876 | #undef osFcntl #define osFcntl lockTrace #endif /* SQLITE_LOCK_TRACE */ /* ** Retry ftruncate() calls that fail due to EINTR ** | | | | | 26073 26074 26075 26076 26077 26078 26079 26080 26081 26082 26083 26084 26085 26086 26087 26088 26089 | #undef osFcntl #define osFcntl lockTrace #endif /* SQLITE_LOCK_TRACE */ /* ** Retry ftruncate() calls that fail due to EINTR ** ** All calls to ftruncate() within this file should be made through ** this wrapper. On the Android platform, bypassing the logic below ** could lead to a corrupt database. */ static int robust_ftruncate(int h, sqlite3_int64 sz){ int rc; #ifdef __ANDROID__ /* On Android, ftruncate() always uses 32-bit offsets, even if ** _FILE_OFFSET_BITS=64 is defined. This means it is unsafe to attempt to ** truncate a file to any size larger than 2GiB. Silently ignore any |
︙ | ︙ | |||
26330 26331 26332 26333 26334 26335 26336 26337 26338 26339 26340 26341 26342 26343 | */ static void robust_close(unixFile *pFile, int h, int lineno){ if( osClose(h) ){ unixLogErrorAtLine(SQLITE_IOERR_CLOSE, "close", pFile ? pFile->zPath : 0, lineno); } } /* ** Close all file descriptors accumuated in the unixInodeInfo->pUnused list. */ static void closePendingFds(unixFile *pFile){ unixInodeInfo *pInode = pFile->pInode; UnixUnusedFd *p; | > > > > > > > > | 26533 26534 26535 26536 26537 26538 26539 26540 26541 26542 26543 26544 26545 26546 26547 26548 26549 26550 26551 26552 26553 26554 | */ static void robust_close(unixFile *pFile, int h, int lineno){ if( osClose(h) ){ unixLogErrorAtLine(SQLITE_IOERR_CLOSE, "close", pFile ? pFile->zPath : 0, lineno); } } /* ** Set the pFile->lastErrno. Do this in a subroutine as that provides ** a convenient place to set a breakpoint. */ static void storeLastErrno(unixFile *pFile, int error){ pFile->lastErrno = error; } /* ** Close all file descriptors accumuated in the unixInodeInfo->pUnused list. */ static void closePendingFds(unixFile *pFile){ unixInodeInfo *pInode = pFile->pInode; UnixUnusedFd *p; |
︙ | ︙ | |||
26404 26405 26406 26407 26408 26409 26410 | /* Get low-level information about the file that we can used to ** create a unique name for the file. */ fd = pFile->h; rc = osFstat(fd, &statbuf); if( rc!=0 ){ | | | | | 26615 26616 26617 26618 26619 26620 26621 26622 26623 26624 26625 26626 26627 26628 26629 26630 26631 26632 26633 26634 26635 26636 26637 26638 26639 26640 26641 26642 26643 26644 26645 26646 26647 26648 26649 26650 26651 26652 26653 26654 26655 | /* Get low-level information about the file that we can used to ** create a unique name for the file. */ fd = pFile->h; rc = osFstat(fd, &statbuf); if( rc!=0 ){ storeLastErrno(pFile, errno); #ifdef EOVERFLOW if( pFile->lastErrno==EOVERFLOW ) return SQLITE_NOLFS; #endif return SQLITE_IOERR; } #ifdef __APPLE__ /* On OS X on an msdos filesystem, the inode number is reported ** incorrectly for zero-size files. See ticket #3260. To work ** around this problem (we consider it a bug in OS X, not SQLite) ** we always increase the file size to 1 by writing a single byte ** prior to accessing the inode number. The one byte written is ** an ASCII 'S' character which also happens to be the first byte ** in the header of every SQLite database. In this way, if there ** is a race condition such that another thread has already populated ** the first page of the database, no damage is done. */ if( statbuf.st_size==0 && (pFile->fsFlags & SQLITE_FSFLAGS_IS_MSDOS)!=0 ){ do{ rc = osWrite(fd, "S", 1); }while( rc<0 && errno==EINTR ); if( rc!=1 ){ storeLastErrno(pFile, errno); return SQLITE_IOERR; } rc = osFstat(fd, &statbuf); if( rc!=0 ){ storeLastErrno(pFile, errno); return SQLITE_IOERR; } } #endif memset(&fileId, 0, sizeof(fileId)); fileId.dev = statbuf.st_dev; |
︙ | ︙ | |||
26553 26554 26555 26556 26557 26558 26559 | struct flock lock; lock.l_whence = SEEK_SET; lock.l_start = RESERVED_BYTE; lock.l_len = 1; lock.l_type = F_WRLCK; if( osFcntl(pFile->h, F_GETLK, &lock) ){ rc = SQLITE_IOERR_CHECKRESERVEDLOCK; | | | 26764 26765 26766 26767 26768 26769 26770 26771 26772 26773 26774 26775 26776 26777 26778 | struct flock lock; lock.l_whence = SEEK_SET; lock.l_start = RESERVED_BYTE; lock.l_len = 1; lock.l_type = F_WRLCK; if( osFcntl(pFile->h, F_GETLK, &lock) ){ rc = SQLITE_IOERR_CHECKRESERVEDLOCK; storeLastErrno(pFile, errno); } else if( lock.l_type!=F_UNLCK ){ reserved = 1; } } #endif unixLeaveMutex(); |
︙ | ︙ | |||
26686 26687 26688 26689 26690 26691 26692 | unixInodeInfo *pInode; struct flock lock; int tErrno = 0; assert( pFile ); OSTRACE(("LOCK %d %s was %s(%s,%d) pid=%d (unix)\n", pFile->h, azFileLock(eFileLock), azFileLock(pFile->eFileLock), | | > | 26897 26898 26899 26900 26901 26902 26903 26904 26905 26906 26907 26908 26909 26910 26911 26912 | unixInodeInfo *pInode; struct flock lock; int tErrno = 0; assert( pFile ); OSTRACE(("LOCK %d %s was %s(%s,%d) pid=%d (unix)\n", pFile->h, azFileLock(eFileLock), azFileLock(pFile->eFileLock), azFileLock(pFile->pInode->eFileLock), pFile->pInode->nShared, osGetpid(0))); /* If there is already a lock of this type or more restrictive on the ** unixFile, do nothing. Don't use the end_lock: exit path, as ** unixEnterMutex() hasn't been called yet. */ if( pFile->eFileLock>=eFileLock ){ OSTRACE(("LOCK %d %s ok (already held) (unix)\n", pFile->h, |
︙ | ︙ | |||
26753 26754 26755 26756 26757 26758 26759 | ){ lock.l_type = (eFileLock==SHARED_LOCK?F_RDLCK:F_WRLCK); lock.l_start = PENDING_BYTE; if( unixFileLock(pFile, &lock) ){ tErrno = errno; rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_LOCK); if( rc!=SQLITE_BUSY ){ | | | 26965 26966 26967 26968 26969 26970 26971 26972 26973 26974 26975 26976 26977 26978 26979 | ){ lock.l_type = (eFileLock==SHARED_LOCK?F_RDLCK:F_WRLCK); lock.l_start = PENDING_BYTE; if( unixFileLock(pFile, &lock) ){ tErrno = errno; rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_LOCK); if( rc!=SQLITE_BUSY ){ storeLastErrno(pFile, tErrno); } goto end_lock; } } /* If control gets to this point, then actually go ahead and make |
︙ | ︙ | |||
26788 26789 26790 26791 26792 26793 26794 | /* This could happen with a network mount */ tErrno = errno; rc = SQLITE_IOERR_UNLOCK; } if( rc ){ if( rc!=SQLITE_BUSY ){ | | | 27000 27001 27002 27003 27004 27005 27006 27007 27008 27009 27010 27011 27012 27013 27014 | /* This could happen with a network mount */ tErrno = errno; rc = SQLITE_IOERR_UNLOCK; } if( rc ){ if( rc!=SQLITE_BUSY ){ storeLastErrno(pFile, tErrno); } goto end_lock; }else{ pFile->eFileLock = SHARED_LOCK; pInode->nLock++; pInode->nShared = 1; } |
︙ | ︙ | |||
26821 26822 26823 26824 26825 26826 26827 | lock.l_len = SHARED_SIZE; } if( unixFileLock(pFile, &lock) ){ tErrno = errno; rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_LOCK); if( rc!=SQLITE_BUSY ){ | | | 27033 27034 27035 27036 27037 27038 27039 27040 27041 27042 27043 27044 27045 27046 27047 | lock.l_len = SHARED_SIZE; } if( unixFileLock(pFile, &lock) ){ tErrno = errno; rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_LOCK); if( rc!=SQLITE_BUSY ){ storeLastErrno(pFile, tErrno); } } } #ifdef SQLITE_DEBUG /* Set up the transaction-counter change checking flags when |
︙ | ︙ | |||
26894 26895 26896 26897 26898 26899 26900 | unixInodeInfo *pInode; struct flock lock; int rc = SQLITE_OK; assert( pFile ); OSTRACE(("UNLOCK %d %d was %d(%d,%d) pid=%d (unix)\n", pFile->h, eFileLock, pFile->eFileLock, pFile->pInode->eFileLock, pFile->pInode->nShared, | | | 27106 27107 27108 27109 27110 27111 27112 27113 27114 27115 27116 27117 27118 27119 27120 | unixInodeInfo *pInode; struct flock lock; int rc = SQLITE_OK; assert( pFile ); OSTRACE(("UNLOCK %d %d was %d(%d,%d) pid=%d (unix)\n", pFile->h, eFileLock, pFile->eFileLock, pFile->pInode->eFileLock, pFile->pInode->nShared, osGetpid(0))); assert( eFileLock<=SHARED_LOCK ); if( pFile->eFileLock<=eFileLock ){ return SQLITE_OK; } unixEnterMutex(); pInode = pFile->pInode; |
︙ | ︙ | |||
26928 26929 26930 26931 26932 26933 26934 | ** write lock until the rest is covered by a read lock: ** 1: [WWWWW] ** 2: [....W] ** 3: [RRRRW] ** 4: [RRRR.] */ if( eFileLock==SHARED_LOCK ){ | < | | | | | | | 27140 27141 27142 27143 27144 27145 27146 27147 27148 27149 27150 27151 27152 27153 27154 27155 27156 27157 27158 27159 27160 27161 27162 27163 27164 27165 27166 27167 27168 27169 27170 27171 27172 27173 27174 27175 27176 27177 27178 27179 27180 27181 27182 27183 27184 27185 27186 27187 27188 27189 27190 27191 27192 27193 27194 27195 27196 27197 27198 27199 27200 27201 27202 27203 27204 27205 27206 27207 27208 27209 27210 27211 27212 27213 27214 27215 27216 27217 27218 27219 27220 27221 27222 27223 27224 27225 27226 27227 27228 27229 27230 27231 27232 27233 27234 27235 27236 27237 27238 27239 27240 27241 27242 27243 27244 27245 | ** write lock until the rest is covered by a read lock: ** 1: [WWWWW] ** 2: [....W] ** 3: [RRRRW] ** 4: [RRRR.] */ if( eFileLock==SHARED_LOCK ){ #if !defined(__APPLE__) || !SQLITE_ENABLE_LOCKING_STYLE (void)handleNFSUnlock; assert( handleNFSUnlock==0 ); #endif #if defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE if( handleNFSUnlock ){ int tErrno; /* Error code from system call errors */ off_t divSize = SHARED_SIZE - 1; lock.l_type = F_UNLCK; lock.l_whence = SEEK_SET; lock.l_start = SHARED_FIRST; lock.l_len = divSize; if( unixFileLock(pFile, &lock)==(-1) ){ tErrno = errno; rc = SQLITE_IOERR_UNLOCK; if( IS_LOCK_ERROR(rc) ){ storeLastErrno(pFile, tErrno); } goto end_unlock; } lock.l_type = F_RDLCK; lock.l_whence = SEEK_SET; lock.l_start = SHARED_FIRST; lock.l_len = divSize; if( unixFileLock(pFile, &lock)==(-1) ){ tErrno = errno; rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_RDLOCK); if( IS_LOCK_ERROR(rc) ){ storeLastErrno(pFile, tErrno); } goto end_unlock; } lock.l_type = F_UNLCK; lock.l_whence = SEEK_SET; lock.l_start = SHARED_FIRST+divSize; lock.l_len = SHARED_SIZE-divSize; if( unixFileLock(pFile, &lock)==(-1) ){ tErrno = errno; rc = SQLITE_IOERR_UNLOCK; if( IS_LOCK_ERROR(rc) ){ storeLastErrno(pFile, tErrno); } goto end_unlock; } }else #endif /* defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE */ { lock.l_type = F_RDLCK; lock.l_whence = SEEK_SET; lock.l_start = SHARED_FIRST; lock.l_len = SHARED_SIZE; if( unixFileLock(pFile, &lock) ){ /* In theory, the call to unixFileLock() cannot fail because another ** process is holding an incompatible lock. If it does, this ** indicates that the other process is not following the locking ** protocol. If this happens, return SQLITE_IOERR_RDLOCK. Returning ** SQLITE_BUSY would confuse the upper layer (in practice it causes ** an assert to fail). */ rc = SQLITE_IOERR_RDLOCK; storeLastErrno(pFile, errno); goto end_unlock; } } } lock.l_type = F_UNLCK; lock.l_whence = SEEK_SET; lock.l_start = PENDING_BYTE; lock.l_len = 2L; assert( PENDING_BYTE+1==RESERVED_BYTE ); if( unixFileLock(pFile, &lock)==0 ){ pInode->eFileLock = SHARED_LOCK; }else{ rc = SQLITE_IOERR_UNLOCK; storeLastErrno(pFile, errno); goto end_unlock; } } if( eFileLock==NO_LOCK ){ /* Decrement the shared lock counter. Release the lock using an ** OS call only when all threads in this same process have released ** the lock. */ pInode->nShared--; if( pInode->nShared==0 ){ lock.l_type = F_UNLCK; lock.l_whence = SEEK_SET; lock.l_start = lock.l_len = 0L; if( unixFileLock(pFile, &lock)==0 ){ pInode->eFileLock = NO_LOCK; }else{ rc = SQLITE_IOERR_UNLOCK; storeLastErrno(pFile, errno); pInode->eFileLock = NO_LOCK; pFile->eFileLock = NO_LOCK; } } /* Decrement the count of locks against this same file. When the ** count reaches zero, close any other file descriptors whose close |
︙ | ︙ | |||
27295 27296 27297 27298 27299 27300 27301 | /* failed to open/create the lock directory */ int tErrno = errno; if( EEXIST == tErrno ){ rc = SQLITE_BUSY; } else { rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_LOCK); if( IS_LOCK_ERROR(rc) ){ | | | 27506 27507 27508 27509 27510 27511 27512 27513 27514 27515 27516 27517 27518 27519 27520 | /* failed to open/create the lock directory */ int tErrno = errno; if( EEXIST == tErrno ){ rc = SQLITE_BUSY; } else { rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_LOCK); if( IS_LOCK_ERROR(rc) ){ storeLastErrno(pFile, tErrno); } } return rc; } /* got it, set the type and return ok */ pFile->eFileLock = eFileLock; |
︙ | ︙ | |||
27322 27323 27324 27325 27326 27327 27328 | static int dotlockUnlock(sqlite3_file *id, int eFileLock) { unixFile *pFile = (unixFile*)id; char *zLockFile = (char *)pFile->lockingContext; int rc; assert( pFile ); OSTRACE(("UNLOCK %d %d was %d pid=%d (dotlock)\n", pFile->h, eFileLock, | | | 27533 27534 27535 27536 27537 27538 27539 27540 27541 27542 27543 27544 27545 27546 27547 | static int dotlockUnlock(sqlite3_file *id, int eFileLock) { unixFile *pFile = (unixFile*)id; char *zLockFile = (char *)pFile->lockingContext; int rc; assert( pFile ); OSTRACE(("UNLOCK %d %d was %d pid=%d (dotlock)\n", pFile->h, eFileLock, pFile->eFileLock, osGetpid(0))); assert( eFileLock<=SHARED_LOCK ); /* no-op if possible */ if( pFile->eFileLock==eFileLock ){ return SQLITE_OK; } |
︙ | ︙ | |||
27349 27350 27351 27352 27353 27354 27355 | if( rc<0 ){ int tErrno = errno; rc = 0; if( ENOENT != tErrno ){ rc = SQLITE_IOERR_UNLOCK; } if( IS_LOCK_ERROR(rc) ){ | | | 27560 27561 27562 27563 27564 27565 27566 27567 27568 27569 27570 27571 27572 27573 27574 | if( rc<0 ){ int tErrno = errno; rc = 0; if( ENOENT != tErrno ){ rc = SQLITE_IOERR_UNLOCK; } if( IS_LOCK_ERROR(rc) ){ storeLastErrno(pFile, tErrno); } return rc; } pFile->eFileLock = NO_LOCK; return SQLITE_OK; } |
︙ | ︙ | |||
27385 27386 27387 27388 27389 27390 27391 | ** flock() locking is like dot-file locking in that the various ** fine-grain locking levels supported by SQLite are collapsed into ** a single exclusive lock. In other words, SHARED, RESERVED, and ** PENDING locks are the same thing as an EXCLUSIVE lock. SQLite ** still works when you do this, but concurrency is reduced since ** only a single process can be reading the database at a time. ** | | < | | 27596 27597 27598 27599 27600 27601 27602 27603 27604 27605 27606 27607 27608 27609 27610 27611 27612 | ** flock() locking is like dot-file locking in that the various ** fine-grain locking levels supported by SQLite are collapsed into ** a single exclusive lock. In other words, SHARED, RESERVED, and ** PENDING locks are the same thing as an EXCLUSIVE lock. SQLite ** still works when you do this, but concurrency is reduced since ** only a single process can be reading the database at a time. ** ** Omit this section if SQLITE_ENABLE_LOCKING_STYLE is turned off */ #if SQLITE_ENABLE_LOCKING_STYLE /* ** Retry flock() calls that fail with EINTR */ #ifdef EINTR static int robust_flock(int fd, int op){ int rc; |
︙ | ︙ | |||
27436 27437 27438 27439 27440 27441 27442 | /* got the lock, unlock it */ lrc = robust_flock(pFile->h, LOCK_UN); if ( lrc ) { int tErrno = errno; /* unlock failed with an error */ lrc = SQLITE_IOERR_UNLOCK; if( IS_LOCK_ERROR(lrc) ){ | | | | 27646 27647 27648 27649 27650 27651 27652 27653 27654 27655 27656 27657 27658 27659 27660 27661 27662 27663 27664 27665 27666 27667 27668 27669 27670 | /* got the lock, unlock it */ lrc = robust_flock(pFile->h, LOCK_UN); if ( lrc ) { int tErrno = errno; /* unlock failed with an error */ lrc = SQLITE_IOERR_UNLOCK; if( IS_LOCK_ERROR(lrc) ){ storeLastErrno(pFile, tErrno); rc = lrc; } } } else { int tErrno = errno; reserved = 1; /* someone else might have it reserved */ lrc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_LOCK); if( IS_LOCK_ERROR(lrc) ){ storeLastErrno(pFile, tErrno); rc = lrc; } } } OSTRACE(("TEST WR-LOCK %d %d %d (flock)\n", pFile->h, rc, reserved)); #ifdef SQLITE_IGNORE_FLOCK_LOCK_ERRORS |
︙ | ︙ | |||
27512 27513 27514 27515 27516 27517 27518 | /* grab an exclusive lock */ if (robust_flock(pFile->h, LOCK_EX | LOCK_NB)) { int tErrno = errno; /* didn't get, must be busy */ rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_LOCK); if( IS_LOCK_ERROR(rc) ){ | | | 27722 27723 27724 27725 27726 27727 27728 27729 27730 27731 27732 27733 27734 27735 27736 | /* grab an exclusive lock */ if (robust_flock(pFile->h, LOCK_EX | LOCK_NB)) { int tErrno = errno; /* didn't get, must be busy */ rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_LOCK); if( IS_LOCK_ERROR(rc) ){ storeLastErrno(pFile, tErrno); } } else { /* got it, set the type and return ok */ pFile->eFileLock = eFileLock; } OSTRACE(("LOCK %d %s %s (flock)\n", pFile->h, azFileLock(eFileLock), rc==SQLITE_OK ? "ok" : "failed")); |
︙ | ︙ | |||
27541 27542 27543 27544 27545 27546 27547 | ** the requested locking level, this routine is a no-op. */ static int flockUnlock(sqlite3_file *id, int eFileLock) { unixFile *pFile = (unixFile*)id; assert( pFile ); OSTRACE(("UNLOCK %d %d was %d pid=%d (flock)\n", pFile->h, eFileLock, | | | 27751 27752 27753 27754 27755 27756 27757 27758 27759 27760 27761 27762 27763 27764 27765 | ** the requested locking level, this routine is a no-op. */ static int flockUnlock(sqlite3_file *id, int eFileLock) { unixFile *pFile = (unixFile*)id; assert( pFile ); OSTRACE(("UNLOCK %d %d was %d pid=%d (flock)\n", pFile->h, eFileLock, pFile->eFileLock, osGetpid(0))); assert( eFileLock<=SHARED_LOCK ); /* no-op if possible */ if( pFile->eFileLock==eFileLock ){ return SQLITE_OK; } |
︙ | ︙ | |||
27602 27603 27604 27605 27606 27607 27608 | /* ** This routine checks if there is a RESERVED lock held on the specified ** file by this or any other process. If such a lock is held, set *pResOut ** to a non-zero value otherwise *pResOut is set to zero. The return value ** is set to SQLITE_OK unless an I/O error occurs during lock checking. */ | | | 27812 27813 27814 27815 27816 27817 27818 27819 27820 27821 27822 27823 27824 27825 27826 | /* ** This routine checks if there is a RESERVED lock held on the specified ** file by this or any other process. If such a lock is held, set *pResOut ** to a non-zero value otherwise *pResOut is set to zero. The return value ** is set to SQLITE_OK unless an I/O error occurs during lock checking. */ static int semXCheckReservedLock(sqlite3_file *id, int *pResOut) { int rc = SQLITE_OK; int reserved = 0; unixFile *pFile = (unixFile*)id; SimulateIOError( return SQLITE_IOERR_CHECKRESERVEDLOCK; ); assert( pFile ); |
︙ | ︙ | |||
27624 27625 27626 27627 27628 27629 27630 | if( !reserved ){ sem_t *pSem = pFile->pInode->pSem; if( sem_trywait(pSem)==-1 ){ int tErrno = errno; if( EAGAIN != tErrno ){ rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_CHECKRESERVEDLOCK); | | | 27834 27835 27836 27837 27838 27839 27840 27841 27842 27843 27844 27845 27846 27847 27848 | if( !reserved ){ sem_t *pSem = pFile->pInode->pSem; if( sem_trywait(pSem)==-1 ){ int tErrno = errno; if( EAGAIN != tErrno ){ rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_CHECKRESERVEDLOCK); storeLastErrno(pFile, tErrno); } else { /* someone else has the lock when we are in NO_LOCK */ reserved = (pFile->eFileLock < SHARED_LOCK); } }else{ /* we could have it if we want it */ sem_post(pSem); |
︙ | ︙ | |||
27669 27670 27671 27672 27673 27674 27675 | ** lock states in the sqlite3_file structure, but all locks SHARED or ** above are really EXCLUSIVE locks and exclude all other processes from ** access the file. ** ** This routine will only increase a lock. Use the sqlite3OsUnlock() ** routine to lower a locking level. */ | | | 27879 27880 27881 27882 27883 27884 27885 27886 27887 27888 27889 27890 27891 27892 27893 | ** lock states in the sqlite3_file structure, but all locks SHARED or ** above are really EXCLUSIVE locks and exclude all other processes from ** access the file. ** ** This routine will only increase a lock. Use the sqlite3OsUnlock() ** routine to lower a locking level. */ static int semXLock(sqlite3_file *id, int eFileLock) { unixFile *pFile = (unixFile*)id; sem_t *pSem = pFile->pInode->pSem; int rc = SQLITE_OK; /* if we already have a lock, it is exclusive. ** Just adjust level and punt on outta here. */ if (pFile->eFileLock > NO_LOCK) { |
︙ | ︙ | |||
27702 27703 27704 27705 27706 27707 27708 | /* ** Lower the locking level on file descriptor pFile to eFileLock. eFileLock ** must be either NO_LOCK or SHARED_LOCK. ** ** If the locking level of the file descriptor is already at or below ** the requested locking level, this routine is a no-op. */ | | | | | | | 27912 27913 27914 27915 27916 27917 27918 27919 27920 27921 27922 27923 27924 27925 27926 27927 27928 27929 27930 27931 27932 27933 27934 27935 27936 27937 27938 27939 27940 27941 27942 27943 27944 27945 27946 27947 27948 27949 27950 27951 27952 27953 27954 27955 27956 27957 27958 27959 27960 27961 27962 27963 27964 27965 27966 | /* ** Lower the locking level on file descriptor pFile to eFileLock. eFileLock ** must be either NO_LOCK or SHARED_LOCK. ** ** If the locking level of the file descriptor is already at or below ** the requested locking level, this routine is a no-op. */ static int semXUnlock(sqlite3_file *id, int eFileLock) { unixFile *pFile = (unixFile*)id; sem_t *pSem = pFile->pInode->pSem; assert( pFile ); assert( pSem ); OSTRACE(("UNLOCK %d %d was %d pid=%d (sem)\n", pFile->h, eFileLock, pFile->eFileLock, osGetpid(0))); assert( eFileLock<=SHARED_LOCK ); /* no-op if possible */ if( pFile->eFileLock==eFileLock ){ return SQLITE_OK; } /* shared can just be set because we always have an exclusive */ if (eFileLock==SHARED_LOCK) { pFile->eFileLock = eFileLock; return SQLITE_OK; } /* no, really unlock. */ if ( sem_post(pSem)==-1 ) { int rc, tErrno = errno; rc = sqliteErrorFromPosixError(tErrno, SQLITE_IOERR_UNLOCK); if( IS_LOCK_ERROR(rc) ){ storeLastErrno(pFile, tErrno); } return rc; } pFile->eFileLock = NO_LOCK; return SQLITE_OK; } /* ** Close a file. */ static int semXClose(sqlite3_file *id) { if( id ){ unixFile *pFile = (unixFile*)id; semXUnlock(id, NO_LOCK); assert( pFile ); unixEnterMutex(); releaseInodeInfo(pFile); unixLeaveMutex(); closeUnixFile(id); } return SQLITE_OK; |
︙ | ︙ | |||
27830 27831 27832 27833 27834 27835 27836 | #ifdef SQLITE_IGNORE_AFP_LOCK_ERRORS rc = SQLITE_BUSY; #else rc = sqliteErrorFromPosixError(tErrno, setLockFlag ? SQLITE_IOERR_LOCK : SQLITE_IOERR_UNLOCK); #endif /* SQLITE_IGNORE_AFP_LOCK_ERRORS */ if( IS_LOCK_ERROR(rc) ){ | | | 28040 28041 28042 28043 28044 28045 28046 28047 28048 28049 28050 28051 28052 28053 28054 | #ifdef SQLITE_IGNORE_AFP_LOCK_ERRORS rc = SQLITE_BUSY; #else rc = sqliteErrorFromPosixError(tErrno, setLockFlag ? SQLITE_IOERR_LOCK : SQLITE_IOERR_UNLOCK); #endif /* SQLITE_IGNORE_AFP_LOCK_ERRORS */ if( IS_LOCK_ERROR(rc) ){ storeLastErrno(pFile, tErrno); } return rc; } else { return SQLITE_OK; } } |
︙ | ︙ | |||
27923 27924 27925 27926 27927 27928 27929 | unixFile *pFile = (unixFile*)id; unixInodeInfo *pInode = pFile->pInode; afpLockingContext *context = (afpLockingContext *) pFile->lockingContext; assert( pFile ); OSTRACE(("LOCK %d %s was %s(%s,%d) pid=%d (afp)\n", pFile->h, azFileLock(eFileLock), azFileLock(pFile->eFileLock), | | | 28133 28134 28135 28136 28137 28138 28139 28140 28141 28142 28143 28144 28145 28146 28147 | unixFile *pFile = (unixFile*)id; unixInodeInfo *pInode = pFile->pInode; afpLockingContext *context = (afpLockingContext *) pFile->lockingContext; assert( pFile ); OSTRACE(("LOCK %d %s was %s(%s,%d) pid=%d (afp)\n", pFile->h, azFileLock(eFileLock), azFileLock(pFile->eFileLock), azFileLock(pInode->eFileLock), pInode->nShared , osGetpid(0))); /* If there is already a lock of this type or more restrictive on the ** unixFile, do nothing. Don't use the afp_end_lock: exit path, as ** unixEnterMutex() hasn't been called yet. */ if( pFile->eFileLock>=eFileLock ){ OSTRACE(("LOCK %d %s ok (already held) (afp)\n", pFile->h, |
︙ | ︙ | |||
28013 28014 28015 28016 28017 28018 28019 | if( IS_LOCK_ERROR(lrc1) ){ lrc1Errno = pFile->lastErrno; } /* Drop the temporary PENDING lock */ lrc2 = afpSetLock(context->dbPath, pFile, PENDING_BYTE, 1, 0); if( IS_LOCK_ERROR(lrc1) ) { | | | 28223 28224 28225 28226 28227 28228 28229 28230 28231 28232 28233 28234 28235 28236 28237 | if( IS_LOCK_ERROR(lrc1) ){ lrc1Errno = pFile->lastErrno; } /* Drop the temporary PENDING lock */ lrc2 = afpSetLock(context->dbPath, pFile, PENDING_BYTE, 1, 0); if( IS_LOCK_ERROR(lrc1) ) { storeLastErrno(pFile, lrc1Errno); rc = lrc1; goto afp_end_lock; } else if( IS_LOCK_ERROR(lrc2) ){ rc = lrc2; goto afp_end_lock; } else if( lrc1 != SQLITE_OK ) { rc = lrc1; |
︙ | ︙ | |||
28109 28110 28111 28112 28113 28114 28115 | #ifdef SQLITE_TEST int h = pFile->h; #endif assert( pFile ); OSTRACE(("UNLOCK %d %d was %d(%d,%d) pid=%d (afp)\n", pFile->h, eFileLock, pFile->eFileLock, pFile->pInode->eFileLock, pFile->pInode->nShared, | | | 28319 28320 28321 28322 28323 28324 28325 28326 28327 28328 28329 28330 28331 28332 28333 | #ifdef SQLITE_TEST int h = pFile->h; #endif assert( pFile ); OSTRACE(("UNLOCK %d %d was %d(%d,%d) pid=%d (afp)\n", pFile->h, eFileLock, pFile->eFileLock, pFile->pInode->eFileLock, pFile->pInode->nShared, osGetpid(0))); assert( eFileLock<=SHARED_LOCK ); if( pFile->eFileLock<=eFileLock ){ return SQLITE_OK; } unixEnterMutex(); pInode = pFile->pInode; |
︙ | ︙ | |||
28300 28301 28302 28303 28304 28305 28306 | got = osPread64(id->h, pBuf, cnt, offset); SimulateIOError( got = -1 ); #else newOffset = lseek(id->h, offset, SEEK_SET); SimulateIOError( newOffset-- ); if( newOffset!=offset ){ if( newOffset == -1 ){ | | | | | 28510 28511 28512 28513 28514 28515 28516 28517 28518 28519 28520 28521 28522 28523 28524 28525 28526 28527 28528 28529 28530 28531 28532 28533 28534 28535 28536 | got = osPread64(id->h, pBuf, cnt, offset); SimulateIOError( got = -1 ); #else newOffset = lseek(id->h, offset, SEEK_SET); SimulateIOError( newOffset-- ); if( newOffset!=offset ){ if( newOffset == -1 ){ storeLastErrno((unixFile*)id, errno); }else{ storeLastErrno((unixFile*)id, 0); } return -1; } got = osRead(id->h, pBuf, cnt); #endif if( got==cnt ) break; if( got<0 ){ if( errno==EINTR ){ got = 1; continue; } prior = 0; storeLastErrno((unixFile*)id, errno); break; }else if( got>0 ){ cnt -= got; offset += got; prior += got; pBuf = (void*)(got + (char*)pBuf); } |
︙ | ︙ | |||
28377 28378 28379 28380 28381 28382 28383 | got = seekAndRead(pFile, offset, pBuf, amt); if( got==amt ){ return SQLITE_OK; }else if( got<0 ){ /* lastErrno set by seekAndRead */ return SQLITE_IOERR_READ; }else{ | | | 28587 28588 28589 28590 28591 28592 28593 28594 28595 28596 28597 28598 28599 28600 28601 | got = seekAndRead(pFile, offset, pBuf, amt); if( got==amt ){ return SQLITE_OK; }else if( got<0 ){ /* lastErrno set by seekAndRead */ return SQLITE_IOERR_READ; }else{ storeLastErrno(pFile, 0); /* not a system error */ /* Unread parts of the buffer must be zero-filled */ memset(&((char*)pBuf)[got], 0, amt-got); return SQLITE_IOERR_SHORT_READ; } } /* |
︙ | ︙ | |||
28406 28407 28408 28409 28410 28411 28412 | assert( nBuf==(nBuf&0x1ffff) ); assert( fd>2 ); nBuf &= 0x1ffff; TIMER_START; #if defined(USE_PREAD) | | | | 28616 28617 28618 28619 28620 28621 28622 28623 28624 28625 28626 28627 28628 28629 28630 28631 28632 | assert( nBuf==(nBuf&0x1ffff) ); assert( fd>2 ); nBuf &= 0x1ffff; TIMER_START; #if defined(USE_PREAD) do{ rc = (int)osPwrite(fd, pBuf, nBuf, iOff); }while( rc<0 && errno==EINTR ); #elif defined(USE_PREAD64) do{ rc = (int)osPwrite64(fd, pBuf, nBuf, iOff);}while( rc<0 && errno==EINTR); #else do{ i64 iSeek = lseek(fd, iOff, SEEK_SET); SimulateIOError( iSeek-- ); if( iSeek!=iOff ){ if( piErrno ) *piErrno = (iSeek==-1 ? errno : 0); |
︙ | ︙ | |||
28518 28519 28520 28521 28522 28523 28524 | SimulateDiskfullError(( wrote=0, amt=1 )); if( amt>0 ){ if( wrote<0 && pFile->lastErrno!=ENOSPC ){ /* lastErrno set by seekAndWrite */ return SQLITE_IOERR_WRITE; }else{ | | | 28728 28729 28730 28731 28732 28733 28734 28735 28736 28737 28738 28739 28740 28741 28742 | SimulateDiskfullError(( wrote=0, amt=1 )); if( amt>0 ){ if( wrote<0 && pFile->lastErrno!=ENOSPC ){ /* lastErrno set by seekAndWrite */ return SQLITE_IOERR_WRITE; }else{ storeLastErrno(pFile, 0); /* not a system error */ return SQLITE_FULL; } } return SQLITE_OK; } |
︙ | ︙ | |||
28727 28728 28729 28730 28731 28732 28733 | SimulateDiskfullError( return SQLITE_FULL ); assert( pFile ); OSTRACE(("SYNC %-3d\n", pFile->h)); rc = full_fsync(pFile->h, isFullsync, isDataOnly); SimulateIOError( rc=1 ); if( rc ){ | | | 28937 28938 28939 28940 28941 28942 28943 28944 28945 28946 28947 28948 28949 28950 28951 | SimulateDiskfullError( return SQLITE_FULL ); assert( pFile ); OSTRACE(("SYNC %-3d\n", pFile->h)); rc = full_fsync(pFile->h, isFullsync, isDataOnly); SimulateIOError( rc=1 ); if( rc ){ storeLastErrno(pFile, errno); return unixLogError(SQLITE_IOERR_FSYNC, "full_fsync", pFile->zPath); } /* Also fsync the directory containing the file if the DIRSYNC flag ** is set. This is a one-time occurrence. Many systems (examples: AIX) ** are unable to fsync a directory, so ignore errors on the fsync. */ |
︙ | ︙ | |||
28771 28772 28773 28774 28775 28776 28777 | */ if( pFile->szChunk>0 ){ nByte = ((nByte + pFile->szChunk - 1)/pFile->szChunk) * pFile->szChunk; } rc = robust_ftruncate(pFile->h, nByte); if( rc ){ | | | 28981 28982 28983 28984 28985 28986 28987 28988 28989 28990 28991 28992 28993 28994 28995 | */ if( pFile->szChunk>0 ){ nByte = ((nByte + pFile->szChunk - 1)/pFile->szChunk) * pFile->szChunk; } rc = robust_ftruncate(pFile->h, nByte); if( rc ){ storeLastErrno(pFile, errno); return unixLogError(SQLITE_IOERR_TRUNCATE, "ftruncate", pFile->zPath); }else{ #ifdef SQLITE_DEBUG /* If we are doing a normal write to a database file (as opposed to ** doing a hot-journal rollback or a write to some file other than a ** normal database file) and we truncate the file to zero length, ** that effectively updates the change counter. This might happen |
︙ | ︙ | |||
28811 28812 28813 28814 28815 28816 28817 | static int unixFileSize(sqlite3_file *id, i64 *pSize){ int rc; struct stat buf; assert( id ); rc = osFstat(((unixFile*)id)->h, &buf); SimulateIOError( rc=1 ); if( rc!=0 ){ | | | 29021 29022 29023 29024 29025 29026 29027 29028 29029 29030 29031 29032 29033 29034 29035 | static int unixFileSize(sqlite3_file *id, i64 *pSize){ int rc; struct stat buf; assert( id ); rc = osFstat(((unixFile*)id)->h, &buf); SimulateIOError( rc=1 ); if( rc!=0 ){ storeLastErrno((unixFile*)id, errno); return SQLITE_IOERR_FSTAT; } *pSize = buf.st_size; /* When opening a zero-size database, the findInodeInfo() procedure ** writes a single byte into that file in order to work around a bug ** in the OS-X msdos filesystem. In order to avoid problems with upper |
︙ | ︙ | |||
28847 28848 28849 28850 28851 28852 28853 | ** nBytes or larger, this routine is a no-op. */ static int fcntlSizeHint(unixFile *pFile, i64 nByte){ if( pFile->szChunk>0 ){ i64 nSize; /* Required file size */ struct stat buf; /* Used to hold return values of fstat() */ | | > > | 29057 29058 29059 29060 29061 29062 29063 29064 29065 29066 29067 29068 29069 29070 29071 29072 29073 | ** nBytes or larger, this routine is a no-op. */ static int fcntlSizeHint(unixFile *pFile, i64 nByte){ if( pFile->szChunk>0 ){ i64 nSize; /* Required file size */ struct stat buf; /* Used to hold return values of fstat() */ if( osFstat(pFile->h, &buf) ){ return SQLITE_IOERR_FSTAT; } nSize = ((nByte+pFile->szChunk-1) / pFile->szChunk) * pFile->szChunk; if( nSize>(i64)buf.st_size ){ #if defined(HAVE_POSIX_FALLOCATE) && HAVE_POSIX_FALLOCATE /* The code below is handling the return value of osFallocate() ** correctly. posix_fallocate() is defined to "returns zero on success, |
︙ | ︙ | |||
28894 28895 28896 28897 28898 28899 28900 | } #if SQLITE_MAX_MMAP_SIZE>0 if( pFile->mmapSizeMax>0 && nByte>pFile->mmapSize ){ int rc; if( pFile->szChunk<=0 ){ if( robust_ftruncate(pFile->h, nByte) ){ | | | 29106 29107 29108 29109 29110 29111 29112 29113 29114 29115 29116 29117 29118 29119 29120 | } #if SQLITE_MAX_MMAP_SIZE>0 if( pFile->mmapSizeMax>0 && nByte>pFile->mmapSize ){ int rc; if( pFile->szChunk<=0 ){ if( robust_ftruncate(pFile->h, nByte) ){ storeLastErrno(pFile, errno); return unixLogError(SQLITE_IOERR_TRUNCATE, "ftruncate", pFile->zPath); } } rc = unixMapfile(pFile, nByte); return rc; } |
︙ | ︙ | |||
28932 28933 28934 28935 28936 28937 28938 28939 28940 28941 28942 | /* ** Information and control of an open file handle. */ static int unixFileControl(sqlite3_file *id, int op, void *pArg){ unixFile *pFile = (unixFile*)id; switch( op ){ case SQLITE_FCNTL_LOCKSTATE: { *(int*)pArg = pFile->eFileLock; return SQLITE_OK; } | > > > > | | 29144 29145 29146 29147 29148 29149 29150 29151 29152 29153 29154 29155 29156 29157 29158 29159 29160 29161 29162 29163 29164 29165 29166 | /* ** Information and control of an open file handle. */ static int unixFileControl(sqlite3_file *id, int op, void *pArg){ unixFile *pFile = (unixFile*)id; switch( op ){ case SQLITE_FCNTL_WAL_BLOCK: { pFile->ctrlFlags |= UNIXFILE_BLOCK; return SQLITE_OK; } case SQLITE_FCNTL_LOCKSTATE: { *(int*)pArg = pFile->eFileLock; return SQLITE_OK; } case SQLITE_FCNTL_LAST_ERRNO: { *(int*)pArg = pFile->lastErrno; return SQLITE_OK; } case SQLITE_FCNTL_CHUNK_SIZE: { pFile->szChunk = *(int *)pArg; return SQLITE_OK; } |
︙ | ︙ | |||
29005 29006 29007 29008 29009 29010 29011 | */ case SQLITE_FCNTL_DB_UNCHANGED: { ((unixFile*)id)->dbUpdate = 0; return SQLITE_OK; } #endif #if SQLITE_ENABLE_LOCKING_STYLE && defined(__APPLE__) | | | | 29221 29222 29223 29224 29225 29226 29227 29228 29229 29230 29231 29232 29233 29234 29235 29236 | */ case SQLITE_FCNTL_DB_UNCHANGED: { ((unixFile*)id)->dbUpdate = 0; return SQLITE_OK; } #endif #if SQLITE_ENABLE_LOCKING_STYLE && defined(__APPLE__) case SQLITE_FCNTL_SET_LOCKPROXYFILE: case SQLITE_FCNTL_GET_LOCKPROXYFILE: { return proxyFileControl(id,op,pArg); } #endif /* SQLITE_ENABLE_LOCKING_STYLE && defined(__APPLE__) */ } return SQLITE_NOTFOUND; } |
︙ | ︙ | |||
29146 29147 29148 29149 29150 29151 29152 | /* ** Return the system page size. ** ** This function should not be called directly by other code in this file. ** Instead, it should be called via macro osGetpagesize(). */ static int unixGetpagesize(void){ | > > | | 29362 29363 29364 29365 29366 29367 29368 29369 29370 29371 29372 29373 29374 29375 29376 29377 29378 | /* ** Return the system page size. ** ** This function should not be called directly by other code in this file. ** Instead, it should be called via macro osGetpagesize(). */ static int unixGetpagesize(void){ #if OS_VXWORKS return 1024; #elif defined(_BSD_SOURCE) return getpagesize(); #else return (int)sysconf(_SC_PAGESIZE); #endif } #endif /* !defined(SQLITE_OMIT_WAL) || SQLITE_MAX_MMAP_SIZE>0 */ |
︙ | ︙ | |||
29239 29240 29241 29242 29243 29244 29245 | /* ** Apply posix advisory locks for all bytes from ofst through ofst+n-1. ** ** Locks block if the mask is exactly UNIX_SHM_C and are non-blocking ** otherwise. */ static int unixShmSystemLock( | | > | | > > > | > | 29457 29458 29459 29460 29461 29462 29463 29464 29465 29466 29467 29468 29469 29470 29471 29472 29473 29474 29475 29476 29477 29478 29479 29480 29481 29482 29483 29484 29485 29486 29487 29488 29489 29490 29491 29492 29493 29494 29495 29496 29497 29498 29499 29500 29501 29502 | /* ** Apply posix advisory locks for all bytes from ofst through ofst+n-1. ** ** Locks block if the mask is exactly UNIX_SHM_C and are non-blocking ** otherwise. */ static int unixShmSystemLock( unixFile *pFile, /* Open connection to the WAL file */ int lockType, /* F_UNLCK, F_RDLCK, or F_WRLCK */ int ofst, /* First byte of the locking range */ int n /* Number of bytes to lock */ ){ unixShmNode *pShmNode; /* Apply locks to this open shared-memory segment */ struct flock f; /* The posix advisory locking structure */ int rc = SQLITE_OK; /* Result code form fcntl() */ /* Access to the unixShmNode object is serialized by the caller */ pShmNode = pFile->pInode->pShmNode; assert( sqlite3_mutex_held(pShmNode->mutex) || pShmNode->nRef==0 ); /* Shared locks never span more than one byte */ assert( n==1 || lockType!=F_RDLCK ); /* Locks are within range */ assert( n>=1 && n<SQLITE_SHM_NLOCK ); if( pShmNode->h>=0 ){ int lkType; /* Initialize the locking parameters */ memset(&f, 0, sizeof(f)); f.l_type = lockType; f.l_whence = SEEK_SET; f.l_start = ofst; f.l_len = n; lkType = (pFile->ctrlFlags & UNIXFILE_BLOCK)!=0 ? F_SETLKW : F_SETLK; rc = osFcntl(pShmNode->h, lkType, &f); rc = (rc!=(-1)) ? SQLITE_OK : SQLITE_BUSY; pFile->ctrlFlags &= ~UNIXFILE_BLOCK; } /* Update the global lock state and do debug tracing */ #ifdef SQLITE_DEBUG { u16 mask; OSTRACE(("SHM-LOCK ")); mask = ofst>31 ? 0xffff : (1<<(ofst+n)) - (1<<ofst); |
︙ | ︙ | |||
29411 29412 29413 29414 29415 29416 29417 29418 29419 29420 29421 29422 29423 29424 29425 29426 29427 29428 29429 29430 | ** one if present. Create a new one if necessary. */ unixEnterMutex(); pInode = pDbFd->pInode; pShmNode = pInode->pShmNode; if( pShmNode==0 ){ struct stat sStat; /* fstat() info for database file */ /* Call fstat() to figure out the permissions on the database file. If ** a new *-shm file is created, an attempt will be made to create it ** with the same permissions. */ if( osFstat(pDbFd->h, &sStat) && pInode->bProcessLock==0 ){ rc = SQLITE_IOERR_FSTAT; goto shm_open_err; } #ifdef SQLITE_SHM_DIRECTORY nShmFilename = sizeof(SQLITE_SHM_DIRECTORY) + 31; #else | > > > | | | 29634 29635 29636 29637 29638 29639 29640 29641 29642 29643 29644 29645 29646 29647 29648 29649 29650 29651 29652 29653 29654 29655 29656 29657 29658 29659 29660 29661 29662 29663 29664 29665 29666 29667 29668 29669 29670 29671 29672 29673 29674 29675 29676 29677 29678 | ** one if present. Create a new one if necessary. */ unixEnterMutex(); pInode = pDbFd->pInode; pShmNode = pInode->pShmNode; if( pShmNode==0 ){ struct stat sStat; /* fstat() info for database file */ #ifndef SQLITE_SHM_DIRECTORY const char *zBasePath = pDbFd->zPath; #endif /* Call fstat() to figure out the permissions on the database file. If ** a new *-shm file is created, an attempt will be made to create it ** with the same permissions. */ if( osFstat(pDbFd->h, &sStat) && pInode->bProcessLock==0 ){ rc = SQLITE_IOERR_FSTAT; goto shm_open_err; } #ifdef SQLITE_SHM_DIRECTORY nShmFilename = sizeof(SQLITE_SHM_DIRECTORY) + 31; #else nShmFilename = 6 + (int)strlen(zBasePath); #endif pShmNode = sqlite3_malloc( sizeof(*pShmNode) + nShmFilename ); if( pShmNode==0 ){ rc = SQLITE_NOMEM; goto shm_open_err; } memset(pShmNode, 0, sizeof(*pShmNode)+nShmFilename); zShmFilename = pShmNode->zFilename = (char*)&pShmNode[1]; #ifdef SQLITE_SHM_DIRECTORY sqlite3_snprintf(nShmFilename, zShmFilename, SQLITE_SHM_DIRECTORY "/sqlite-shm-%x-%x", (u32)sStat.st_ino, (u32)sStat.st_dev); #else sqlite3_snprintf(nShmFilename, zShmFilename, "%s-shm", zBasePath); sqlite3FileSuffix3(pDbFd->zPath, zShmFilename); #endif pShmNode->h = -1; pDbFd->pInode->pShmNode = pShmNode; pShmNode->pInode = pDbFd->pInode; pShmNode->mutex = sqlite3_mutex_alloc(SQLITE_MUTEX_FAST); if( pShmNode->mutex==0 ){ |
︙ | ︙ | |||
29472 29473 29474 29475 29476 29477 29478 | */ osFchown(pShmNode->h, sStat.st_uid, sStat.st_gid); /* Check to see if another process is holding the dead-man switch. ** If not, truncate the file to zero length. */ rc = SQLITE_OK; | | | | 29698 29699 29700 29701 29702 29703 29704 29705 29706 29707 29708 29709 29710 29711 29712 29713 29714 29715 29716 29717 29718 | */ osFchown(pShmNode->h, sStat.st_uid, sStat.st_gid); /* Check to see if another process is holding the dead-man switch. ** If not, truncate the file to zero length. */ rc = SQLITE_OK; if( unixShmSystemLock(pDbFd, F_WRLCK, UNIX_SHM_DMS, 1)==SQLITE_OK ){ if( robust_ftruncate(pShmNode->h, 0) ){ rc = unixLogError(SQLITE_IOERR_SHMOPEN, "ftruncate", zShmFilename); } } if( rc==SQLITE_OK ){ rc = unixShmSystemLock(pDbFd, F_RDLCK, UNIX_SHM_DMS, 1); } if( rc ) goto shm_open_err; } } /* Make the new connection a child of the unixShmNode */ p->pShmNode = pShmNode; |
︙ | ︙ | |||
29710 29711 29712 29713 29714 29715 29716 | if( pX==p ) continue; assert( (pX->exclMask & (p->exclMask|p->sharedMask))==0 ); allMask |= pX->sharedMask; } /* Unlock the system-level locks */ if( (mask & allMask)==0 ){ | | | 29936 29937 29938 29939 29940 29941 29942 29943 29944 29945 29946 29947 29948 29949 29950 | if( pX==p ) continue; assert( (pX->exclMask & (p->exclMask|p->sharedMask))==0 ); allMask |= pX->sharedMask; } /* Unlock the system-level locks */ if( (mask & allMask)==0 ){ rc = unixShmSystemLock(pDbFd, F_UNLCK, ofst+UNIX_SHM_BASE, n); }else{ rc = SQLITE_OK; } /* Undo the local locks */ if( rc==SQLITE_OK ){ p->exclMask &= ~mask; |
︙ | ︙ | |||
29738 29739 29740 29741 29742 29743 29744 | } allShared |= pX->sharedMask; } /* Get shared locks at the system level, if necessary */ if( rc==SQLITE_OK ){ if( (allShared & mask)==0 ){ | | | 29964 29965 29966 29967 29968 29969 29970 29971 29972 29973 29974 29975 29976 29977 29978 | } allShared |= pX->sharedMask; } /* Get shared locks at the system level, if necessary */ if( rc==SQLITE_OK ){ if( (allShared & mask)==0 ){ rc = unixShmSystemLock(pDbFd, F_RDLCK, ofst+UNIX_SHM_BASE, n); }else{ rc = SQLITE_OK; } } /* Get the local shared locks */ if( rc==SQLITE_OK ){ |
︙ | ︙ | |||
29763 29764 29765 29766 29767 29768 29769 | } } /* Get the exclusive locks at the system level. Then if successful ** also mark the local connection as being locked. */ if( rc==SQLITE_OK ){ | | | | 29989 29990 29991 29992 29993 29994 29995 29996 29997 29998 29999 30000 30001 30002 30003 30004 30005 30006 30007 30008 30009 30010 30011 30012 | } } /* Get the exclusive locks at the system level. Then if successful ** also mark the local connection as being locked. */ if( rc==SQLITE_OK ){ rc = unixShmSystemLock(pDbFd, F_WRLCK, ofst+UNIX_SHM_BASE, n); if( rc==SQLITE_OK ){ assert( (p->sharedMask & mask)==0 ); p->exclMask |= mask; } } } sqlite3_mutex_leave(pShmNode->mutex); OSTRACE(("SHM-LOCK shmid-%d, pid-%d got %03x,%03x\n", p->id, osGetpid(0), p->sharedMask, p->exclMask)); return rc; } /* ** Implement a memory barrier or memory fence on shared memory. ** ** All loads and stores begun before the barrier must complete before |
︙ | ︙ | |||
29831 29832 29833 29834 29835 29836 29837 | /* If pShmNode->nRef has reached 0, then close the underlying ** shared-memory file, too */ unixEnterMutex(); assert( pShmNode->nRef>0 ); pShmNode->nRef--; if( pShmNode->nRef==0 ){ | | > > | 30057 30058 30059 30060 30061 30062 30063 30064 30065 30066 30067 30068 30069 30070 30071 30072 30073 | /* If pShmNode->nRef has reached 0, then close the underlying ** shared-memory file, too */ unixEnterMutex(); assert( pShmNode->nRef>0 ); pShmNode->nRef--; if( pShmNode->nRef==0 ){ if( deleteFlag && pShmNode->h>=0 ){ osUnlink(pShmNode->zFilename); } unixShmPurge(pDbFd); } unixLeaveMutex(); return SQLITE_OK; } |
︙ | ︙ | |||
30108 30109 30110 30111 30112 30113 30114 | ** ** * A constant sqlite3_io_methods object call METHOD that has locking ** methods CLOSE, LOCK, UNLOCK, CKRESLOCK. ** ** * An I/O method finder function called FINDER that returns a pointer ** to the METHOD object in the previous bullet. */ | | | 30336 30337 30338 30339 30340 30341 30342 30343 30344 30345 30346 30347 30348 30349 30350 | ** ** * A constant sqlite3_io_methods object call METHOD that has locking ** methods CLOSE, LOCK, UNLOCK, CKRESLOCK. ** ** * An I/O method finder function called FINDER that returns a pointer ** to the METHOD object in the previous bullet. */ #define IOMETHODS(FINDER,METHOD,VERSION,CLOSE,LOCK,UNLOCK,CKLOCK,SHMMAP) \ static const sqlite3_io_methods METHOD = { \ VERSION, /* iVersion */ \ CLOSE, /* xClose */ \ unixRead, /* xRead */ \ unixWrite, /* xWrite */ \ unixTruncate, /* xTruncate */ \ unixSync, /* xSync */ \ |
︙ | ︙ | |||
30173 30174 30175 30176 30177 30178 30179 | dotlockClose, /* xClose method */ dotlockLock, /* xLock method */ dotlockUnlock, /* xUnlock method */ dotlockCheckReservedLock, /* xCheckReservedLock method */ 0 /* xShmMap method */ ) | | | | | | | 30401 30402 30403 30404 30405 30406 30407 30408 30409 30410 30411 30412 30413 30414 30415 30416 30417 30418 30419 30420 30421 30422 30423 30424 30425 30426 30427 30428 30429 30430 30431 30432 30433 30434 30435 30436 | dotlockClose, /* xClose method */ dotlockLock, /* xLock method */ dotlockUnlock, /* xUnlock method */ dotlockCheckReservedLock, /* xCheckReservedLock method */ 0 /* xShmMap method */ ) #if SQLITE_ENABLE_LOCKING_STYLE IOMETHODS( flockIoFinder, /* Finder function name */ flockIoMethods, /* sqlite3_io_methods object name */ 1, /* shared memory is disabled */ flockClose, /* xClose method */ flockLock, /* xLock method */ flockUnlock, /* xUnlock method */ flockCheckReservedLock, /* xCheckReservedLock method */ 0 /* xShmMap method */ ) #endif #if OS_VXWORKS IOMETHODS( semIoFinder, /* Finder function name */ semIoMethods, /* sqlite3_io_methods object name */ 1, /* shared memory is disabled */ semXClose, /* xClose method */ semXLock, /* xLock method */ semXUnlock, /* xUnlock method */ semXCheckReservedLock, /* xCheckReservedLock method */ 0 /* xShmMap method */ ) #endif #if defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE IOMETHODS( afpIoFinder, /* Finder function name */ |
︙ | ︙ | |||
30318 30319 30320 30321 30322 30323 30324 | } } static const sqlite3_io_methods *(*const autolockIoFinder)(const char*,unixFile*) = autolockIoFinderImpl; #endif /* defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE */ | | | | | | < < | | 30546 30547 30548 30549 30550 30551 30552 30553 30554 30555 30556 30557 30558 30559 30560 30561 30562 30563 30564 30565 30566 | } } static const sqlite3_io_methods *(*const autolockIoFinder)(const char*,unixFile*) = autolockIoFinderImpl; #endif /* defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE */ #if OS_VXWORKS /* ** This "finder" function for VxWorks checks to see if posix advisory ** locking works. If it does, then that is what is used. If it does not ** work, then fallback to named semaphore locking. */ static const sqlite3_io_methods *vxworksIoFinderImpl( const char *filePath, /* name of the database file */ unixFile *pNew /* the open file object */ ){ struct flock lockInfo; if( !filePath ){ /* If filePath==NULL that means we are dealing with a transient file |
︙ | ︙ | |||
30352 30353 30354 30355 30356 30357 30358 | if( osFcntl(pNew->h, F_GETLK, &lockInfo)!=-1 ) { return &posixIoMethods; }else{ return &semIoMethods; } } static const sqlite3_io_methods | | | | 30578 30579 30580 30581 30582 30583 30584 30585 30586 30587 30588 30589 30590 30591 30592 30593 30594 | if( osFcntl(pNew->h, F_GETLK, &lockInfo)!=-1 ) { return &posixIoMethods; }else{ return &semIoMethods; } } static const sqlite3_io_methods *(*const vxworksIoFinder)(const char*,unixFile*) = vxworksIoFinderImpl; #endif /* OS_VXWORKS */ /* ** An abstract type for a pointer to an IO method finder function: */ typedef const sqlite3_io_methods *(*finder_type)(const char*,unixFile*); |
︙ | ︙ | |||
30536 30537 30538 30539 30540 30541 30542 | pNew->pInode->aSemName[0] = '\0'; } } unixLeaveMutex(); } #endif | | | 30762 30763 30764 30765 30766 30767 30768 30769 30770 30771 30772 30773 30774 30775 30776 | pNew->pInode->aSemName[0] = '\0'; } } unixLeaveMutex(); } #endif storeLastErrno(pNew, 0); #if OS_VXWORKS if( rc!=SQLITE_OK ){ if( h>=0 ) robust_close(pNew, h, __LINE__); h = -1; osUnlink(zFilename); pNew->ctrlFlags |= UNIXFILE_DELETE; } |
︙ | ︙ | |||
30867 30868 30869 30870 30871 30872 30873 | ); /* Detect a pid change and reset the PRNG. There is a race condition ** here such that two or more threads all trying to open databases at ** the same instant might all reset the PRNG. But multiple resets ** are harmless. */ | | | | 31093 31094 31095 31096 31097 31098 31099 31100 31101 31102 31103 31104 31105 31106 31107 31108 | ); /* Detect a pid change and reset the PRNG. There is a race condition ** here such that two or more threads all trying to open databases at ** the same instant might all reset the PRNG. But multiple resets ** are harmless. */ if( randomnessPid!=osGetpid(0) ){ randomnessPid = osGetpid(0); sqlite3_randomness(0,0); } memset(p, 0, sizeof(unixFile)); if( eType==SQLITE_OPEN_MAIN_DB ){ UnixUnusedFd *pUnused; |
︙ | ︙ | |||
30984 30985 30986 30987 30988 30989 30990 | #endif noLock = eType!=SQLITE_OPEN_MAIN_DB; #if defined(__APPLE__) || SQLITE_ENABLE_LOCKING_STYLE if( fstatfs(fd, &fsInfo) == -1 ){ | | > > > | 31210 31211 31212 31213 31214 31215 31216 31217 31218 31219 31220 31221 31222 31223 31224 31225 31226 31227 31228 31229 31230 31231 31232 31233 | #endif noLock = eType!=SQLITE_OPEN_MAIN_DB; #if defined(__APPLE__) || SQLITE_ENABLE_LOCKING_STYLE if( fstatfs(fd, &fsInfo) == -1 ){ storeLastErrno(p, errno); robust_close(p, fd, __LINE__); return SQLITE_IOERR_ACCESS; } if (0 == strncmp("msdos", fsInfo.f_fstypename, 5)) { ((unixFile*)pFile)->fsFlags |= SQLITE_FSFLAGS_IS_MSDOS; } if (0 == strncmp("exfat", fsInfo.f_fstypename, 5)) { ((unixFile*)pFile)->fsFlags |= SQLITE_FSFLAGS_IS_MSDOS; } #endif /* Set up appropriate ctrlFlags */ if( isDelete ) ctrlFlags |= UNIXFILE_DELETE; if( isReadonly ) ctrlFlags |= UNIXFILE_RDONLY; if( noLock ) ctrlFlags |= UNIXFILE_NOLOCK; if( syncDir ) ctrlFlags |= UNIXFILE_DIRSYNC; |
︙ | ︙ | |||
31013 31014 31015 31016 31017 31018 31019 | int useProxy = 0; /* SQLITE_FORCE_PROXY_LOCKING==1 means force always use proxy, 0 means ** never use proxy, NULL means use proxy for non-local files only. */ if( envforce!=NULL ){ useProxy = atoi(envforce)>0; }else{ | < < < < < < < < < < < < < | 31242 31243 31244 31245 31246 31247 31248 31249 31250 31251 31252 31253 31254 31255 | int useProxy = 0; /* SQLITE_FORCE_PROXY_LOCKING==1 means force always use proxy, 0 means ** never use proxy, NULL means use proxy for non-local files only. */ if( envforce!=NULL ){ useProxy = atoi(envforce)>0; }else{ useProxy = !(fsInfo.f_flags&MNT_LOCAL); } if( useProxy ){ rc = fillInUnixFile(pVfs, fd, pFile, zPath, ctrlFlags); if( rc==SQLITE_OK ){ rc = proxyTransformUnixFile((unixFile*)pFile, ":auto:"); if( rc!=SQLITE_OK ){ |
︙ | ︙ | |||
31269 31270 31271 31272 31273 31274 31275 | ** in the random seed. ** ** When testing, initializing zBuf[] to zero is all we do. That means ** that we always use the same random number sequence. This makes the ** tests repeatable. */ memset(zBuf, 0, nBuf); | | | 31485 31486 31487 31488 31489 31490 31491 31492 31493 31494 31495 31496 31497 31498 31499 | ** in the random seed. ** ** When testing, initializing zBuf[] to zero is all we do. That means ** that we always use the same random number sequence. This makes the ** tests repeatable. */ memset(zBuf, 0, nBuf); randomnessPid = osGetpid(0); #if !defined(SQLITE_TEST) { int fd, got; fd = robust_open("/dev/urandom", O_RDONLY, 0); if( fd<0 ){ time_t t; time(&t); |
︙ | ︙ | |||
31451 31452 31453 31454 31455 31456 31457 | ** ** ** Using proxy locks ** ----------------- ** ** C APIs ** | | | > | 31667 31668 31669 31670 31671 31672 31673 31674 31675 31676 31677 31678 31679 31680 31681 31682 31683 31684 | ** ** ** Using proxy locks ** ----------------- ** ** C APIs ** ** sqlite3_file_control(db, dbname, SQLITE_FCNTL_SET_LOCKPROXYFILE, ** <proxy_path> | ":auto:"); ** sqlite3_file_control(db, dbname, SQLITE_FCNTL_GET_LOCKPROXYFILE, ** &<proxy_path>); ** ** ** SQL pragmas ** ** PRAGMA [database.]lock_proxy_file=<proxy_path> | :auto: ** PRAGMA [database.]lock_proxy_file ** |
︙ | ︙ | |||
31546 31547 31548 31549 31550 31551 31552 | ** lock proxy files, only used when LOCKPROXYDIR is not set. ** ** ** As mentioned above, when compiled with SQLITE_PREFER_PROXY_LOCKING, ** setting the environment variable SQLITE_FORCE_PROXY_LOCKING to 1 will ** force proxy locking to be used for every database file opened, and 0 ** will force automatic proxy locking to be disabled for all database | | > | 31763 31764 31765 31766 31767 31768 31769 31770 31771 31772 31773 31774 31775 31776 31777 31778 31779 31780 31781 31782 31783 31784 31785 31786 31787 31788 31789 31790 31791 31792 31793 31794 31795 31796 31797 31798 | ** lock proxy files, only used when LOCKPROXYDIR is not set. ** ** ** As mentioned above, when compiled with SQLITE_PREFER_PROXY_LOCKING, ** setting the environment variable SQLITE_FORCE_PROXY_LOCKING to 1 will ** force proxy locking to be used for every database file opened, and 0 ** will force automatic proxy locking to be disabled for all database ** files (explicitly calling the SQLITE_FCNTL_SET_LOCKPROXYFILE pragma or ** sqlite_file_control API is not affected by SQLITE_FORCE_PROXY_LOCKING). */ /* ** Proxy locking is only available on MacOSX */ #if defined(__APPLE__) && SQLITE_ENABLE_LOCKING_STYLE /* ** The proxyLockingContext has the path and file structures for the remote ** and local proxy files in it */ typedef struct proxyLockingContext proxyLockingContext; struct proxyLockingContext { unixFile *conchFile; /* Open conch file */ char *conchFilePath; /* Name of the conch file */ unixFile *lockProxy; /* Open proxy lock file */ char *lockProxyPath; /* Name of the proxy lock file */ char *dbPath; /* Name of the open file */ int conchHeld; /* 1 if the conch is held, -1 if lockless */ int nFails; /* Number of conch taking failures */ void *oldLockingContext; /* Original lockingcontext to restore on close */ sqlite3_io_methods const *pOldMethod; /* Original I/O methods for close */ }; /* ** The proxy lock file path for the database at dbPath is written into lPath, ** which must point to valid, writable memory large enough for a maxLen length |
︙ | ︙ | |||
31588 31589 31590 31591 31592 31593 31594 | #ifdef LOCKPROXYDIR len = strlcpy(lPath, LOCKPROXYDIR, maxLen); #else # ifdef _CS_DARWIN_USER_TEMP_DIR { if( !confstr(_CS_DARWIN_USER_TEMP_DIR, lPath, maxLen) ){ OSTRACE(("GETLOCKPATH failed %s errno=%d pid=%d\n", | | | 31806 31807 31808 31809 31810 31811 31812 31813 31814 31815 31816 31817 31818 31819 31820 | #ifdef LOCKPROXYDIR len = strlcpy(lPath, LOCKPROXYDIR, maxLen); #else # ifdef _CS_DARWIN_USER_TEMP_DIR { if( !confstr(_CS_DARWIN_USER_TEMP_DIR, lPath, maxLen) ){ OSTRACE(("GETLOCKPATH failed %s errno=%d pid=%d\n", lPath, errno, osGetpid(0))); return SQLITE_IOERR_LOCK; } len = strlcat(lPath, "sqliteplocks", maxLen); } # else len = strlcpy(lPath, "/tmp/", maxLen); # endif |
︙ | ︙ | |||
31610 31611 31612 31613 31614 31615 31616 | dbLen = (int)strlen(dbPath); for( i=0; i<dbLen && (i+len+7)<(int)maxLen; i++){ char c = dbPath[i]; lPath[i+len] = (c=='/')?'_':c; } lPath[i+len]='\0'; strlcat(lPath, ":auto:", maxLen); | | | 31828 31829 31830 31831 31832 31833 31834 31835 31836 31837 31838 31839 31840 31841 31842 | dbLen = (int)strlen(dbPath); for( i=0; i<dbLen && (i+len+7)<(int)maxLen; i++){ char c = dbPath[i]; lPath[i+len] = (c=='/')?'_':c; } lPath[i+len]='\0'; strlcat(lPath, ":auto:", maxLen); OSTRACE(("GETLOCKPATH proxy lock path=%s pid=%d\n", lPath, osGetpid(0))); return SQLITE_OK; } /* ** Creates the lock file and any missing directories in lockPath */ static int proxyCreateLockPath(const char *lockPath){ |
︙ | ︙ | |||
31637 31638 31639 31640 31641 31642 31643 | || (i-start==2 && buf[start] != '.' && buf[start+1] != '.') ){ buf[i]='\0'; if( osMkdir(buf, SQLITE_DEFAULT_PROXYDIR_PERMISSIONS) ){ int err=errno; if( err!=EEXIST ) { OSTRACE(("CREATELOCKPATH FAILED creating %s, " "'%s' proxy lock path=%s pid=%d\n", | | | | 31855 31856 31857 31858 31859 31860 31861 31862 31863 31864 31865 31866 31867 31868 31869 31870 31871 31872 31873 31874 31875 31876 31877 31878 | || (i-start==2 && buf[start] != '.' && buf[start+1] != '.') ){ buf[i]='\0'; if( osMkdir(buf, SQLITE_DEFAULT_PROXYDIR_PERMISSIONS) ){ int err=errno; if( err!=EEXIST ) { OSTRACE(("CREATELOCKPATH FAILED creating %s, " "'%s' proxy lock path=%s pid=%d\n", buf, strerror(err), lockPath, osGetpid(0))); return err; } } } start=i+1; } buf[i] = lockPath[i]; } OSTRACE(("CREATELOCKPATH proxy lock path=%s pid=%d\n", lockPath, osGetpid(0))); return 0; } /* ** Create a new VFS file descriptor (stored in memory obtained from ** sqlite3_malloc) and open the file named "path" in the file descriptor. ** |
︙ | ︙ | |||
31755 31756 31757 31758 31759 31760 31761 | /* get the host ID via gethostuuid(), pHostID must point to PROXY_HOSTIDLEN ** bytes of writable memory. */ static int proxyGetHostID(unsigned char *pHostID, int *pError){ assert(PROXY_HOSTIDLEN == sizeof(uuid_t)); memset(pHostID, 0, PROXY_HOSTIDLEN); | | | | | 31973 31974 31975 31976 31977 31978 31979 31980 31981 31982 31983 31984 31985 31986 31987 31988 31989 31990 | /* get the host ID via gethostuuid(), pHostID must point to PROXY_HOSTIDLEN ** bytes of writable memory. */ static int proxyGetHostID(unsigned char *pHostID, int *pError){ assert(PROXY_HOSTIDLEN == sizeof(uuid_t)); memset(pHostID, 0, PROXY_HOSTIDLEN); # if defined(__APPLE__) && ((__MAC_OS_X_VERSION_MIN_REQUIRED > 1050) || \ (__IPHONE_OS_VERSION_MIN_REQUIRED > 2000)) { struct timespec timeout = {1, 0}; /* 1 sec timeout */ if( gethostuuid(pHostID, &timeout) ){ int err = errno; if( pError ){ *pError = err; } return SQLITE_IOERR; } |
︙ | ︙ | |||
31873 31874 31875 31876 31877 31878 31879 | * 1st try: get the mod time of the conch, wait 0.5s and try again. * 2nd try: fail if the mod time changed or host id is different, wait * 10 sec and try again * 3rd try: break the lock unless the mod time has changed. */ struct stat buf; if( osFstat(conchFile->h, &buf) ){ | | | | | 32091 32092 32093 32094 32095 32096 32097 32098 32099 32100 32101 32102 32103 32104 32105 32106 32107 32108 32109 32110 32111 32112 32113 32114 32115 32116 32117 32118 32119 32120 32121 32122 32123 32124 32125 32126 32127 32128 32129 32130 32131 32132 32133 32134 32135 32136 32137 32138 32139 32140 32141 32142 32143 32144 32145 | * 1st try: get the mod time of the conch, wait 0.5s and try again. * 2nd try: fail if the mod time changed or host id is different, wait * 10 sec and try again * 3rd try: break the lock unless the mod time has changed. */ struct stat buf; if( osFstat(conchFile->h, &buf) ){ storeLastErrno(pFile, errno); return SQLITE_IOERR_LOCK; } if( nTries==1 ){ conchModTime = buf.st_mtimespec; usleep(500000); /* wait 0.5 sec and try the lock again*/ continue; } assert( nTries>1 ); if( conchModTime.tv_sec != buf.st_mtimespec.tv_sec || conchModTime.tv_nsec != buf.st_mtimespec.tv_nsec ){ return SQLITE_BUSY; } if( nTries==2 ){ char tBuf[PROXY_MAXCONCHLEN]; int len = osPread(conchFile->h, tBuf, PROXY_MAXCONCHLEN, 0); if( len<0 ){ storeLastErrno(pFile, errno); return SQLITE_IOERR_LOCK; } if( len>PROXY_PATHINDEX && tBuf[0]==(char)PROXY_CONCHVERSION){ /* don't break the lock if the host id doesn't match */ if( 0!=memcmp(&tBuf[PROXY_HEADERLEN], myHostID, PROXY_HOSTIDLEN) ){ return SQLITE_BUSY; } }else{ /* don't break the lock on short read or a version mismatch */ return SQLITE_BUSY; } usleep(10000000); /* wait 10 sec and try the lock again */ continue; } assert( nTries==3 ); if( 0==proxyBreakConchLock(pFile, myHostID) ){ rc = SQLITE_OK; if( lockType==EXCLUSIVE_LOCK ){ rc = conchFile->pMethod->xLock((sqlite3_file*)conchFile, SHARED_LOCK); } if( !rc ){ rc = conchFile->pMethod->xLock((sqlite3_file*)conchFile, lockType); } } } } while( rc==SQLITE_BUSY && nTries<3 ); |
︙ | ︙ | |||
31951 31952 31953 31954 31955 31956 31957 | int createConch = 0; int hostIdMatch = 0; int readLen = 0; int tryOldLockPath = 0; int forceNewLockPath = 0; OSTRACE(("TAKECONCH %d for %s pid=%d\n", conchFile->h, | | > | | | 32169 32170 32171 32172 32173 32174 32175 32176 32177 32178 32179 32180 32181 32182 32183 32184 32185 32186 32187 32188 32189 32190 32191 32192 32193 32194 32195 32196 32197 32198 32199 | int createConch = 0; int hostIdMatch = 0; int readLen = 0; int tryOldLockPath = 0; int forceNewLockPath = 0; OSTRACE(("TAKECONCH %d for %s pid=%d\n", conchFile->h, (pCtx->lockProxyPath ? pCtx->lockProxyPath : ":auto:"), osGetpid(0))); rc = proxyGetHostID(myHostID, &pError); if( (rc&0xff)==SQLITE_IOERR ){ storeLastErrno(pFile, pError); goto end_takeconch; } rc = proxyConchLock(pFile, myHostID, SHARED_LOCK); if( rc!=SQLITE_OK ){ goto end_takeconch; } /* read the existing conch file */ readLen = seekAndRead((unixFile*)conchFile, 0, readBuf, PROXY_MAXCONCHLEN); if( readLen<0 ){ /* I/O error: lastErrno set by seekAndRead */ storeLastErrno(pFile, conchFile->lastErrno); rc = SQLITE_IOERR_READ; goto end_takeconch; }else if( readLen<=(PROXY_HEADERLEN+PROXY_HOSTIDLEN) || readBuf[0]!=(char)PROXY_CONCHVERSION ){ /* a short read or version format mismatch means we need to create a new ** conch file. */ |
︙ | ︙ | |||
32039 32040 32041 32042 32043 32044 32045 | /* We are trying for an exclusive lock but another thread in this ** same process is still holding a shared lock. */ rc = SQLITE_BUSY; } else { rc = proxyConchLock(pFile, myHostID, EXCLUSIVE_LOCK); } }else{ | | | > | 32258 32259 32260 32261 32262 32263 32264 32265 32266 32267 32268 32269 32270 32271 32272 32273 32274 32275 32276 32277 32278 32279 32280 32281 32282 | /* We are trying for an exclusive lock but another thread in this ** same process is still holding a shared lock. */ rc = SQLITE_BUSY; } else { rc = proxyConchLock(pFile, myHostID, EXCLUSIVE_LOCK); } }else{ rc = proxyConchLock(pFile, myHostID, EXCLUSIVE_LOCK); } if( rc==SQLITE_OK ){ char writeBuffer[PROXY_MAXCONCHLEN]; int writeSize = 0; writeBuffer[0] = (char)PROXY_CONCHVERSION; memcpy(&writeBuffer[PROXY_HEADERLEN], myHostID, PROXY_HOSTIDLEN); if( pCtx->lockProxyPath!=NULL ){ strlcpy(&writeBuffer[PROXY_PATHINDEX], pCtx->lockProxyPath, MAXPATHLEN); }else{ strlcpy(&writeBuffer[PROXY_PATHINDEX], tempLockPath, MAXPATHLEN); } writeSize = PROXY_PATHINDEX + strlen(&writeBuffer[PROXY_PATHINDEX]); robust_ftruncate(conchFile->h, writeSize); rc = unixWrite((sqlite3_file *)conchFile, writeBuffer, writeSize, 0); fsync(conchFile->h); |
︙ | ︙ | |||
32160 32161 32162 32163 32164 32165 32166 | proxyLockingContext *pCtx; /* The locking context for the proxy lock */ unixFile *conchFile; /* Name of the conch file */ pCtx = (proxyLockingContext *)pFile->lockingContext; conchFile = pCtx->conchFile; OSTRACE(("RELEASECONCH %d for %s pid=%d\n", conchFile->h, (pCtx->lockProxyPath ? pCtx->lockProxyPath : ":auto:"), | | | 32380 32381 32382 32383 32384 32385 32386 32387 32388 32389 32390 32391 32392 32393 32394 | proxyLockingContext *pCtx; /* The locking context for the proxy lock */ unixFile *conchFile; /* Name of the conch file */ pCtx = (proxyLockingContext *)pFile->lockingContext; conchFile = pCtx->conchFile; OSTRACE(("RELEASECONCH %d for %s pid=%d\n", conchFile->h, (pCtx->lockProxyPath ? pCtx->lockProxyPath : ":auto:"), osGetpid(0))); if( pCtx->conchHeld>0 ){ rc = conchFile->pMethod->xUnlock((sqlite3_file*)conchFile, NO_LOCK); } pCtx->conchHeld = 0; OSTRACE(("RELEASECONCH %d %s\n", conchFile->h, (rc==SQLITE_OK ? "ok" : "failed"))); return rc; |
︙ | ︙ | |||
32260 32261 32262 32263 32264 32265 32266 | */ static int proxyGetDbPathForUnixFile(unixFile *pFile, char *dbPath){ #if defined(__APPLE__) if( pFile->pMethod == &afpIoMethods ){ /* afp style keeps a reference to the db path in the filePath field ** of the struct */ assert( (int)strlen((char*)pFile->lockingContext)<=MAXPATHLEN ); | | > | 32480 32481 32482 32483 32484 32485 32486 32487 32488 32489 32490 32491 32492 32493 32494 32495 | */ static int proxyGetDbPathForUnixFile(unixFile *pFile, char *dbPath){ #if defined(__APPLE__) if( pFile->pMethod == &afpIoMethods ){ /* afp style keeps a reference to the db path in the filePath field ** of the struct */ assert( (int)strlen((char*)pFile->lockingContext)<=MAXPATHLEN ); strlcpy(dbPath, ((afpLockingContext *)pFile->lockingContext)->dbPath, MAXPATHLEN); } else #endif if( pFile->pMethod == &dotlockIoMethods ){ /* dot lock style uses the locking context to store the dot lock ** file path */ int len = strlen((char *)pFile->lockingContext) - strlen(DOTLOCK_SUFFIX); memcpy(dbPath, (char *)pFile->lockingContext, len + 1); |
︙ | ︙ | |||
32301 32302 32303 32304 32305 32306 32307 | if( !path || path[0]=='\0' || !strcmp(path, ":auto:") ){ lockPath=NULL; }else{ lockPath=(char *)path; } OSTRACE(("TRANSPROXY %d for %s pid=%d\n", pFile->h, | | | 32522 32523 32524 32525 32526 32527 32528 32529 32530 32531 32532 32533 32534 32535 32536 | if( !path || path[0]=='\0' || !strcmp(path, ":auto:") ){ lockPath=NULL; }else{ lockPath=(char *)path; } OSTRACE(("TRANSPROXY %d for %s pid=%d\n", pFile->h, (lockPath ? lockPath : ":auto:"), osGetpid(0))); pCtx = sqlite3_malloc( sizeof(*pCtx) ); if( pCtx==0 ){ return SQLITE_NOMEM; } memset(pCtx, 0, sizeof(*pCtx)); |
︙ | ︙ | |||
32373 32374 32375 32376 32377 32378 32379 | /* ** This routine handles sqlite3_file_control() calls that are specific ** to proxy locking. */ static int proxyFileControl(sqlite3_file *id, int op, void *pArg){ switch( op ){ | | | | > > > | 32594 32595 32596 32597 32598 32599 32600 32601 32602 32603 32604 32605 32606 32607 32608 32609 32610 32611 32612 32613 32614 32615 32616 32617 32618 32619 32620 32621 32622 32623 32624 32625 32626 32627 32628 32629 32630 32631 32632 | /* ** This routine handles sqlite3_file_control() calls that are specific ** to proxy locking. */ static int proxyFileControl(sqlite3_file *id, int op, void *pArg){ switch( op ){ case SQLITE_FCNTL_GET_LOCKPROXYFILE: { unixFile *pFile = (unixFile*)id; if( pFile->pMethod == &proxyIoMethods ){ proxyLockingContext *pCtx = (proxyLockingContext*)pFile->lockingContext; proxyTakeConch(pFile); if( pCtx->lockProxyPath ){ *(const char **)pArg = pCtx->lockProxyPath; }else{ *(const char **)pArg = ":auto: (not held)"; } } else { *(const char **)pArg = NULL; } return SQLITE_OK; } case SQLITE_FCNTL_SET_LOCKPROXYFILE: { unixFile *pFile = (unixFile*)id; int rc = SQLITE_OK; int isProxyStyle = (pFile->pMethod == &proxyIoMethods); if( pArg==NULL || (const char *)pArg==0 ){ if( isProxyStyle ){ /* turn off proxy locking - not supported. If support is added for ** switching proxy locking mode off then it will need to fail if ** the journal mode is WAL mode. */ rc = SQLITE_ERROR /*SQLITE_PROTOCOL? SQLITE_MISUSE?*/; }else{ /* turn off proxy locking - already off - NOOP */ rc = SQLITE_OK; } }else{ const char *proxyPath = (const char *)pArg; |
︙ | ︙ | |||
32585 32586 32587 32588 32589 32590 32591 | ** files. ** ** This routine is called once during SQLite initialization and by a ** single thread. The memory allocation and mutex subsystems have not ** necessarily been initialized when this routine is called, and so they ** should not be used. */ | | | 32809 32810 32811 32812 32813 32814 32815 32816 32817 32818 32819 32820 32821 32822 32823 | ** files. ** ** This routine is called once during SQLite initialization and by a ** single thread. The memory allocation and mutex subsystems have not ** necessarily been initialized when this routine is called, and so they ** should not be used. */ SQLITE_API int SQLITE_STDCALL sqlite3_os_init(void){ /* ** The following macro defines an initializer for an sqlite3_vfs object. ** The name of the VFS is NAME. The pAppData is a pointer to a pointer ** to the "finder" function. (pAppData is a pointer to a pointer because ** silly C90 rules prohibit a void* from being cast to a function pointer ** and so we have to go through the intermediate pointer to avoid problems ** when compiling with -pedantic-errors on GCC.) |
︙ | ︙ | |||
32639 32640 32641 32642 32643 32644 32645 | ** All default VFSes for unix are contained in the following array. ** ** Note that the sqlite3_vfs.pNext field of the VFS object is modified ** by the SQLite core when the VFS is registered. So the following ** array cannot be const. */ static sqlite3_vfs aVfs[] = { | | > > | > | < | 32863 32864 32865 32866 32867 32868 32869 32870 32871 32872 32873 32874 32875 32876 32877 32878 32879 32880 32881 32882 32883 32884 32885 32886 32887 32888 32889 32890 32891 32892 32893 32894 | ** All default VFSes for unix are contained in the following array. ** ** Note that the sqlite3_vfs.pNext field of the VFS object is modified ** by the SQLite core when the VFS is registered. So the following ** array cannot be const. */ static sqlite3_vfs aVfs[] = { #if SQLITE_ENABLE_LOCKING_STYLE && defined(__APPLE__) UNIXVFS("unix", autolockIoFinder ), #elif OS_VXWORKS UNIXVFS("unix", vxworksIoFinder ), #else UNIXVFS("unix", posixIoFinder ), #endif UNIXVFS("unix-none", nolockIoFinder ), UNIXVFS("unix-dotfile", dotlockIoFinder ), UNIXVFS("unix-excl", posixIoFinder ), #if OS_VXWORKS UNIXVFS("unix-namedsem", semIoFinder ), #endif #if SQLITE_ENABLE_LOCKING_STYLE || OS_VXWORKS UNIXVFS("unix-posix", posixIoFinder ), #endif #if SQLITE_ENABLE_LOCKING_STYLE UNIXVFS("unix-flock", flockIoFinder ), #endif #if SQLITE_ENABLE_LOCKING_STYLE && defined(__APPLE__) UNIXVFS("unix-afp", afpIoFinder ), UNIXVFS("unix-nfs", nfsIoFinder ), UNIXVFS("unix-proxy", proxyIoFinder ), #endif }; |
︙ | ︙ | |||
32682 32683 32684 32685 32686 32687 32688 | /* ** Shutdown the operating system interface. ** ** Some operating systems might need to do some cleanup in this routine, ** to release dynamically allocated objects. But not on unix. ** This routine is a no-op for unix. */ | | | 32908 32909 32910 32911 32912 32913 32914 32915 32916 32917 32918 32919 32920 32921 32922 | /* ** Shutdown the operating system interface. ** ** Some operating systems might need to do some cleanup in this routine, ** to release dynamically allocated objects. But not on unix. ** This routine is a no-op for unix. */ SQLITE_API int SQLITE_STDCALL sqlite3_os_end(void){ return SQLITE_OK; } #endif /* SQLITE_OS_UNIX */ /************** End of os_unix.c *********************************************/ /************** Begin file os_win.c ******************************************/ |
︙ | ︙ | |||
33095 33096 33097 33098 33099 33100 33101 | DWORD, DWORD, DWORD, LPCWSTR); #endif /* defined(SQLITE_WIN32_HAS_WIDE) */ WINBASEAPI LPVOID WINAPI MapViewOfFile(HANDLE, DWORD, DWORD, DWORD, SIZE_T); #endif /* SQLITE_OS_WINRT */ /* | | > > | 33321 33322 33323 33324 33325 33326 33327 33328 33329 33330 33331 33332 33333 33334 33335 33336 33337 33338 | DWORD, DWORD, DWORD, LPCWSTR); #endif /* defined(SQLITE_WIN32_HAS_WIDE) */ WINBASEAPI LPVOID WINAPI MapViewOfFile(HANDLE, DWORD, DWORD, DWORD, SIZE_T); #endif /* SQLITE_OS_WINRT */ /* ** These file mapping APIs are common to both Win32 and WinRT. */ WINBASEAPI BOOL WINAPI FlushViewOfFile(LPCVOID, SIZE_T); WINBASEAPI BOOL WINAPI UnmapViewOfFile(LPCVOID); #endif /* SQLITE_WIN32_FILEMAPPING_API */ /* ** Some Microsoft compilers lack this definition. */ #ifndef INVALID_FILE_ATTRIBUTES |
︙ | ︙ | |||
33964 33965 33966 33967 33968 33969 33970 33971 33972 33973 33974 33975 33976 33977 | #else { "InterlockedCompareExchange", (SYSCALL)InterlockedCompareExchange, 0 }, #define osInterlockedCompareExchange ((LONG(WINAPI*)(LONG \ SQLITE_WIN32_VOLATILE*, LONG,LONG))aSyscall[76].pCurrent) #endif /* defined(InterlockedCompareExchange) */ }; /* End of the overrideable system calls */ /* ** This is the xSetSystemCall() method of sqlite3_vfs for all of the ** "win32" VFSes. Return SQLITE_OK opon successfully updating the ** system call pointer, or SQLITE_NOTFOUND if there is no configurable ** system call named zName. | > > > > > > > > > > > > > > > > > > > > > > > > > > | 34192 34193 34194 34195 34196 34197 34198 34199 34200 34201 34202 34203 34204 34205 34206 34207 34208 34209 34210 34211 34212 34213 34214 34215 34216 34217 34218 34219 34220 34221 34222 34223 34224 34225 34226 34227 34228 34229 34230 34231 | #else { "InterlockedCompareExchange", (SYSCALL)InterlockedCompareExchange, 0 }, #define osInterlockedCompareExchange ((LONG(WINAPI*)(LONG \ SQLITE_WIN32_VOLATILE*, LONG,LONG))aSyscall[76].pCurrent) #endif /* defined(InterlockedCompareExchange) */ #if !SQLITE_OS_WINCE && !SQLITE_OS_WINRT && SQLITE_WIN32_USE_UUID { "UuidCreate", (SYSCALL)UuidCreate, 0 }, #else { "UuidCreate", (SYSCALL)0, 0 }, #endif #define osUuidCreate ((RPC_STATUS(RPC_ENTRY*)(UUID*))aSyscall[77].pCurrent) #if !SQLITE_OS_WINCE && !SQLITE_OS_WINRT && SQLITE_WIN32_USE_UUID { "UuidCreateSequential", (SYSCALL)UuidCreateSequential, 0 }, #else { "UuidCreateSequential", (SYSCALL)0, 0 }, #endif #define osUuidCreateSequential \ ((RPC_STATUS(RPC_ENTRY*)(UUID*))aSyscall[78].pCurrent) #if !defined(SQLITE_NO_SYNC) && SQLITE_MAX_MMAP_SIZE>0 { "FlushViewOfFile", (SYSCALL)FlushViewOfFile, 0 }, #else { "FlushViewOfFile", (SYSCALL)0, 0 }, #endif #define osFlushViewOfFile \ ((BOOL(WINAPI*)(LPCVOID,SIZE_T))aSyscall[79].pCurrent) }; /* End of the overrideable system calls */ /* ** This is the xSetSystemCall() method of sqlite3_vfs for all of the ** "win32" VFSes. Return SQLITE_OK opon successfully updating the ** system call pointer, or SQLITE_NOTFOUND if there is no configurable ** system call named zName. |
︙ | ︙ | |||
34057 34058 34059 34060 34061 34062 34063 | /* ** If a Win32 native heap has been configured, this function will attempt to ** compact it. Upon success, SQLITE_OK will be returned. Upon failure, one ** of SQLITE_NOMEM, SQLITE_ERROR, or SQLITE_NOTFOUND will be returned. The ** "pnLargest" argument, if non-zero, will be used to return the size of the ** largest committed free block in the heap, in bytes. */ | | | 34311 34312 34313 34314 34315 34316 34317 34318 34319 34320 34321 34322 34323 34324 34325 | /* ** If a Win32 native heap has been configured, this function will attempt to ** compact it. Upon success, SQLITE_OK will be returned. Upon failure, one ** of SQLITE_NOMEM, SQLITE_ERROR, or SQLITE_NOTFOUND will be returned. The ** "pnLargest" argument, if non-zero, will be used to return the size of the ** largest committed free block in the heap, in bytes. */ SQLITE_API int SQLITE_STDCALL sqlite3_win32_compact_heap(LPUINT pnLargest){ int rc = SQLITE_OK; UINT nLargest = 0; HANDLE hHeap; winMemAssertMagic(); hHeap = winMemGetHeap(); assert( hHeap!=0 ); |
︙ | ︙ | |||
34097 34098 34099 34100 34101 34102 34103 | /* ** If a Win32 native heap has been configured, this function will attempt to ** destroy and recreate it. If the Win32 native heap is not isolated and/or ** the sqlite3_memory_used() function does not return zero, SQLITE_BUSY will ** be returned and no changes will be made to the Win32 native heap. */ | | | 34351 34352 34353 34354 34355 34356 34357 34358 34359 34360 34361 34362 34363 34364 34365 | /* ** If a Win32 native heap has been configured, this function will attempt to ** destroy and recreate it. If the Win32 native heap is not isolated and/or ** the sqlite3_memory_used() function does not return zero, SQLITE_BUSY will ** be returned and no changes will be made to the Win32 native heap. */ SQLITE_API int SQLITE_STDCALL sqlite3_win32_reset_heap(){ int rc; MUTEX_LOGIC( sqlite3_mutex *pMaster; ) /* The main static mutex */ MUTEX_LOGIC( sqlite3_mutex *pMem; ) /* The memsys static mutex */ MUTEX_LOGIC( pMaster = sqlite3_mutex_alloc(SQLITE_MUTEX_STATIC_MASTER); ) MUTEX_LOGIC( pMem = sqlite3_mutex_alloc(SQLITE_MUTEX_STATIC_MEM); ) sqlite3_mutex_enter(pMaster); sqlite3_mutex_enter(pMem); |
︙ | ︙ | |||
34142 34143 34144 34145 34146 34147 34148 | #endif /* SQLITE_WIN32_MALLOC */ /* ** This function outputs the specified (ANSI) string to the Win32 debugger ** (if available). */ | | | 34396 34397 34398 34399 34400 34401 34402 34403 34404 34405 34406 34407 34408 34409 34410 | #endif /* SQLITE_WIN32_MALLOC */ /* ** This function outputs the specified (ANSI) string to the Win32 debugger ** (if available). */ SQLITE_API void SQLITE_STDCALL sqlite3_win32_write_debug(const char *zBuf, int nBuf){ char zDbgBuf[SQLITE_WIN32_DBG_BUF_SIZE]; int nMin = MIN(nBuf, (SQLITE_WIN32_DBG_BUF_SIZE - 1)); /* may be negative. */ if( nMin<-1 ) nMin = -1; /* all negative values become -1. */ assert( nMin==-1 || nMin==0 || nMin<SQLITE_WIN32_DBG_BUF_SIZE ); #if defined(SQLITE_WIN32_HAS_ANSI) if( nMin>0 ){ memset(zDbgBuf, 0, SQLITE_WIN32_DBG_BUF_SIZE); |
︙ | ︙ | |||
34182 34183 34184 34185 34186 34187 34188 | ** The following routine suspends the current thread for at least ms ** milliseconds. This is equivalent to the Win32 Sleep() interface. */ #if SQLITE_OS_WINRT static HANDLE sleepObj = NULL; #endif | | | 34436 34437 34438 34439 34440 34441 34442 34443 34444 34445 34446 34447 34448 34449 34450 | ** The following routine suspends the current thread for at least ms ** milliseconds. This is equivalent to the Win32 Sleep() interface. */ #if SQLITE_OS_WINRT static HANDLE sleepObj = NULL; #endif SQLITE_API void SQLITE_STDCALL sqlite3_win32_sleep(DWORD milliseconds){ #if SQLITE_OS_WINRT if ( sleepObj==NULL ){ sleepObj = osCreateEventExW(NULL, NULL, CREATE_EVENT_MANUAL_RESET, SYNCHRONIZE); } assert( sleepObj!=NULL ); osWaitForSingleObjectEx(sleepObj, milliseconds, FALSE); |
︙ | ︙ | |||
34231 34232 34233 34234 34235 34236 34237 | # define osIsNT() ((sqlite3_os_type==2) || sqlite3_win32_is_nt()) #endif /* ** This function determines if the machine is running a version of Windows ** based on the NT kernel. */ | | | 34485 34486 34487 34488 34489 34490 34491 34492 34493 34494 34495 34496 34497 34498 34499 | # define osIsNT() ((sqlite3_os_type==2) || sqlite3_win32_is_nt()) #endif /* ** This function determines if the machine is running a version of Windows ** based on the NT kernel. */ SQLITE_API int SQLITE_STDCALL sqlite3_win32_is_nt(void){ #if SQLITE_OS_WINRT /* ** NOTE: The WinRT sub-platform is always assumed to be based on the NT ** kernel. */ return 1; #elif defined(SQLITE_WIN32_GETVERSIONEX) && SQLITE_WIN32_GETVERSIONEX |
︙ | ︙ | |||
34585 34586 34587 34588 34589 34590 34591 | return zFilename; } /* ** Convert multibyte character string to UTF-8. Space to hold the ** returned string is obtained from sqlite3_malloc(). */ | | | | | 34839 34840 34841 34842 34843 34844 34845 34846 34847 34848 34849 34850 34851 34852 34853 34854 34855 34856 34857 34858 34859 34860 34861 34862 34863 34864 34865 34866 34867 34868 34869 34870 34871 34872 34873 34874 34875 34876 34877 34878 34879 34880 34881 34882 34883 34884 34885 34886 34887 34888 34889 34890 | return zFilename; } /* ** Convert multibyte character string to UTF-8. Space to hold the ** returned string is obtained from sqlite3_malloc(). */ SQLITE_API char *SQLITE_STDCALL sqlite3_win32_mbcs_to_utf8(const char *zFilename){ char *zFilenameUtf8; LPWSTR zTmpWide; zTmpWide = winMbcsToUnicode(zFilename); if( zTmpWide==0 ){ return 0; } zFilenameUtf8 = winUnicodeToUtf8(zTmpWide); sqlite3_free(zTmpWide); return zFilenameUtf8; } /* ** Convert UTF-8 to multibyte character string. Space to hold the ** returned string is obtained from sqlite3_malloc(). */ SQLITE_API char *SQLITE_STDCALL sqlite3_win32_utf8_to_mbcs(const char *zFilename){ char *zFilenameMbcs; LPWSTR zTmpWide; zTmpWide = winUtf8ToUnicode(zFilename); if( zTmpWide==0 ){ return 0; } zFilenameMbcs = winUnicodeToMbcs(zTmpWide); sqlite3_free(zTmpWide); return zFilenameMbcs; } /* ** This function sets the data directory or the temporary directory based on ** the provided arguments. The type argument must be 1 in order to set the ** data directory or 2 in order to set the temporary directory. The zValue ** argument is the name of the directory to use. The return value will be ** SQLITE_OK if successful. */ SQLITE_API int SQLITE_STDCALL sqlite3_win32_set_directory(DWORD type, LPCWSTR zValue){ char **ppDirectory = 0; #ifndef SQLITE_OMIT_AUTOINIT int rc = sqlite3_initialize(); if( rc ) return rc; #endif if( type==SQLITE_WIN32_DATA_DIRECTORY_TYPE ){ ppDirectory = &sqlite3_data_directory; |
︙ | ︙ | |||
34847 34848 34849 34850 34851 34852 34853 | } return 0; } /* ** Log a I/O error retry episode. */ | | | | | | 35101 35102 35103 35104 35105 35106 35107 35108 35109 35110 35111 35112 35113 35114 35115 35116 35117 35118 35119 | } return 0; } /* ** Log a I/O error retry episode. */ static void winLogIoerr(int nRetry, int lineno){ if( nRetry ){ sqlite3_log(SQLITE_NOTICE, "delayed %dms for lock/sharing conflict at line %d", winIoerrRetryDelay*nRetry*(nRetry+1)/2, lineno ); } } #if SQLITE_OS_WINCE /************************************************************************* ** This section contains code for WinCE only. |
︙ | ︙ | |||
35331 35332 35333 35334 35335 35336 35337 | winFile *pFile = (winFile*)id; assert( id!=0 ); #ifndef SQLITE_OMIT_WAL assert( pFile->pShm==0 ); #endif assert( pFile->h!=NULL && pFile->h!=INVALID_HANDLE_VALUE ); | | > | 35585 35586 35587 35588 35589 35590 35591 35592 35593 35594 35595 35596 35597 35598 35599 35600 | winFile *pFile = (winFile*)id; assert( id!=0 ); #ifndef SQLITE_OMIT_WAL assert( pFile->pShm==0 ); #endif assert( pFile->h!=NULL && pFile->h!=INVALID_HANDLE_VALUE ); OSTRACE(("CLOSE pid=%lu, pFile=%p, file=%p\n", osGetCurrentProcessId(), pFile, pFile->h)); #if SQLITE_MAX_MMAP_SIZE>0 winUnmapfile(pFile); #endif do{ rc = osCloseHandle(pFile->h); |
︙ | ︙ | |||
35360 35361 35362 35363 35364 35365 35366 | sqlite3_free(pFile->zDeleteOnClose); } #endif if( rc ){ pFile->h = NULL; } OpenCounter(-1); | > | | 35615 35616 35617 35618 35619 35620 35621 35622 35623 35624 35625 35626 35627 35628 35629 35630 | sqlite3_free(pFile->zDeleteOnClose); } #endif if( rc ){ pFile->h = NULL; } OpenCounter(-1); OSTRACE(("CLOSE pid=%lu, pFile=%p, file=%p, rc=%s\n", osGetCurrentProcessId(), pFile, pFile->h, rc ? "ok" : "failed")); return rc ? SQLITE_OK : winLogError(SQLITE_IOERR_CLOSE, osGetLastError(), "winClose", pFile->zPath); } /* ** Read data from a file into a buffer. Return SQLITE_OK if all |
︙ | ︙ | |||
35388 35389 35390 35391 35392 35393 35394 | DWORD nRead; /* Number of bytes actually read from file */ int nRetry = 0; /* Number of retrys */ assert( id!=0 ); assert( amt>0 ); assert( offset>=0 ); SimulateIOError(return SQLITE_IOERR_READ); | | > | > | > | > | | > | > | 35644 35645 35646 35647 35648 35649 35650 35651 35652 35653 35654 35655 35656 35657 35658 35659 35660 35661 35662 35663 35664 35665 35666 35667 35668 35669 35670 35671 35672 35673 35674 35675 35676 35677 35678 35679 35680 35681 35682 35683 35684 35685 35686 35687 35688 35689 35690 35691 35692 35693 35694 35695 35696 35697 35698 35699 35700 35701 35702 35703 35704 35705 35706 35707 35708 35709 35710 35711 35712 35713 | DWORD nRead; /* Number of bytes actually read from file */ int nRetry = 0; /* Number of retrys */ assert( id!=0 ); assert( amt>0 ); assert( offset>=0 ); SimulateIOError(return SQLITE_IOERR_READ); OSTRACE(("READ pid=%lu, pFile=%p, file=%p, buffer=%p, amount=%d, " "offset=%lld, lock=%d\n", osGetCurrentProcessId(), pFile, pFile->h, pBuf, amt, offset, pFile->locktype)); #if SQLITE_MAX_MMAP_SIZE>0 /* Deal with as much of this read request as possible by transfering ** data from the memory mapping using memcpy(). */ if( offset<pFile->mmapSize ){ if( offset+amt <= pFile->mmapSize ){ memcpy(pBuf, &((u8 *)(pFile->pMapRegion))[offset], amt); OSTRACE(("READ-MMAP pid=%lu, pFile=%p, file=%p, rc=SQLITE_OK\n", osGetCurrentProcessId(), pFile, pFile->h)); return SQLITE_OK; }else{ int nCopy = (int)(pFile->mmapSize - offset); memcpy(pBuf, &((u8 *)(pFile->pMapRegion))[offset], nCopy); pBuf = &((u8 *)pBuf)[nCopy]; amt -= nCopy; offset += nCopy; } } #endif #if SQLITE_OS_WINCE || defined(SQLITE_WIN32_NO_OVERLAPPED) if( winSeekFile(pFile, offset) ){ OSTRACE(("READ pid=%lu, pFile=%p, file=%p, rc=SQLITE_FULL\n", osGetCurrentProcessId(), pFile, pFile->h)); return SQLITE_FULL; } while( !osReadFile(pFile->h, pBuf, amt, &nRead, 0) ){ #else memset(&overlapped, 0, sizeof(OVERLAPPED)); overlapped.Offset = (LONG)(offset & 0xffffffff); overlapped.OffsetHigh = (LONG)((offset>>32) & 0x7fffffff); while( !osReadFile(pFile->h, pBuf, amt, &nRead, &overlapped) && osGetLastError()!=ERROR_HANDLE_EOF ){ #endif DWORD lastErrno; if( winRetryIoerr(&nRetry, &lastErrno) ) continue; pFile->lastErrno = lastErrno; OSTRACE(("READ pid=%lu, pFile=%p, file=%p, rc=SQLITE_IOERR_READ\n", osGetCurrentProcessId(), pFile, pFile->h)); return winLogError(SQLITE_IOERR_READ, pFile->lastErrno, "winRead", pFile->zPath); } winLogIoerr(nRetry, __LINE__); if( nRead<(DWORD)amt ){ /* Unread parts of the buffer must be zero-filled */ memset(&((char*)pBuf)[nRead], 0, amt-nRead); OSTRACE(("READ pid=%lu, pFile=%p, file=%p, rc=SQLITE_IOERR_SHORT_READ\n", osGetCurrentProcessId(), pFile, pFile->h)); return SQLITE_IOERR_SHORT_READ; } OSTRACE(("READ pid=%lu, pFile=%p, file=%p, rc=SQLITE_OK\n", osGetCurrentProcessId(), pFile, pFile->h)); return SQLITE_OK; } /* ** Write data from a buffer into a file. Return SQLITE_OK on success ** or some other error code on failure. */ |
︙ | ︙ | |||
35460 35461 35462 35463 35464 35465 35466 | int nRetry = 0; /* Number of retries */ assert( amt>0 ); assert( pFile ); SimulateIOError(return SQLITE_IOERR_WRITE); SimulateDiskfullError(return SQLITE_FULL); | | > | > | 35722 35723 35724 35725 35726 35727 35728 35729 35730 35731 35732 35733 35734 35735 35736 35737 35738 35739 35740 35741 35742 35743 35744 35745 35746 35747 | int nRetry = 0; /* Number of retries */ assert( amt>0 ); assert( pFile ); SimulateIOError(return SQLITE_IOERR_WRITE); SimulateDiskfullError(return SQLITE_FULL); OSTRACE(("WRITE pid=%lu, pFile=%p, file=%p, buffer=%p, amount=%d, " "offset=%lld, lock=%d\n", osGetCurrentProcessId(), pFile, pFile->h, pBuf, amt, offset, pFile->locktype)); #if SQLITE_MAX_MMAP_SIZE>0 /* Deal with as much of this write request as possible by transfering ** data from the memory mapping using memcpy(). */ if( offset<pFile->mmapSize ){ if( offset+amt <= pFile->mmapSize ){ memcpy(&((u8 *)(pFile->pMapRegion))[offset], pBuf, amt); OSTRACE(("WRITE-MMAP pid=%lu, pFile=%p, file=%p, rc=SQLITE_OK\n", osGetCurrentProcessId(), pFile, pFile->h)); return SQLITE_OK; }else{ int nCopy = (int)(pFile->mmapSize - offset); memcpy(&((u8 *)(pFile->pMapRegion))[offset], pBuf, nCopy); pBuf = &((u8 *)pBuf)[nCopy]; amt -= nCopy; offset += nCopy; |
︙ | ︙ | |||
35532 35533 35534 35535 35536 35537 35538 | rc = 1; } } if( rc ){ if( ( pFile->lastErrno==ERROR_HANDLE_DISK_FULL ) || ( pFile->lastErrno==ERROR_DISK_FULL )){ | | > | > | | > | | | 35796 35797 35798 35799 35800 35801 35802 35803 35804 35805 35806 35807 35808 35809 35810 35811 35812 35813 35814 35815 35816 35817 35818 35819 35820 35821 35822 35823 35824 35825 35826 35827 35828 35829 35830 35831 35832 35833 35834 35835 35836 35837 35838 | rc = 1; } } if( rc ){ if( ( pFile->lastErrno==ERROR_HANDLE_DISK_FULL ) || ( pFile->lastErrno==ERROR_DISK_FULL )){ OSTRACE(("WRITE pid=%lu, pFile=%p, file=%p, rc=SQLITE_FULL\n", osGetCurrentProcessId(), pFile, pFile->h)); return winLogError(SQLITE_FULL, pFile->lastErrno, "winWrite1", pFile->zPath); } OSTRACE(("WRITE pid=%lu, pFile=%p, file=%p, rc=SQLITE_IOERR_WRITE\n", osGetCurrentProcessId(), pFile, pFile->h)); return winLogError(SQLITE_IOERR_WRITE, pFile->lastErrno, "winWrite2", pFile->zPath); }else{ winLogIoerr(nRetry, __LINE__); } OSTRACE(("WRITE pid=%lu, pFile=%p, file=%p, rc=SQLITE_OK\n", osGetCurrentProcessId(), pFile, pFile->h)); return SQLITE_OK; } /* ** Truncate an open file to a specified size */ static int winTruncate(sqlite3_file *id, sqlite3_int64 nByte){ winFile *pFile = (winFile*)id; /* File handle object */ int rc = SQLITE_OK; /* Return code for this function */ DWORD lastErrno; assert( pFile ); SimulateIOError(return SQLITE_IOERR_TRUNCATE); OSTRACE(("TRUNCATE pid=%lu, pFile=%p, file=%p, size=%lld, lock=%d\n", osGetCurrentProcessId(), pFile, pFile->h, nByte, pFile->locktype)); /* If the user has configured a chunk-size for this file, truncate the ** file so that it consists of an integer number of chunks (i.e. the ** actual file size after the operation may be larger than the requested ** size). */ if( pFile->szChunk>0 ){ |
︙ | ︙ | |||
35589 35590 35591 35592 35593 35594 35595 | ** use read() and write() to access data beyond this point from now on. */ if( pFile->pMapRegion && nByte<pFile->mmapSize ){ pFile->mmapSize = nByte; } #endif | > | | 35856 35857 35858 35859 35860 35861 35862 35863 35864 35865 35866 35867 35868 35869 35870 35871 | ** use read() and write() to access data beyond this point from now on. */ if( pFile->pMapRegion && nByte<pFile->mmapSize ){ pFile->mmapSize = nByte; } #endif OSTRACE(("TRUNCATE pid=%lu, pFile=%p, file=%p, rc=%s\n", osGetCurrentProcessId(), pFile, pFile->h, sqlite3ErrName(rc))); return rc; } #ifdef SQLITE_TEST /* ** Count the number of fullsyncs and normal syncs. This is used to test ** that syncs and fullsyncs are occuring at the right times. |
︙ | ︙ | |||
35634 35635 35636 35637 35638 35639 35640 | ); /* Unix cannot, but some systems may return SQLITE_FULL from here. This ** line is to test that doing so does not cause any problems. */ SimulateDiskfullError( return SQLITE_FULL ); | | > | | > > > > > > > > > > > > > > > > > | > | > | | 35902 35903 35904 35905 35906 35907 35908 35909 35910 35911 35912 35913 35914 35915 35916 35917 35918 35919 35920 35921 35922 35923 35924 35925 35926 35927 35928 35929 35930 35931 35932 35933 35934 35935 35936 35937 35938 35939 35940 35941 35942 35943 35944 35945 35946 35947 35948 35949 35950 35951 35952 35953 35954 35955 35956 35957 35958 35959 35960 35961 35962 35963 35964 | ); /* Unix cannot, but some systems may return SQLITE_FULL from here. This ** line is to test that doing so does not cause any problems. */ SimulateDiskfullError( return SQLITE_FULL ); OSTRACE(("SYNC pid=%lu, pFile=%p, file=%p, flags=%x, lock=%d\n", osGetCurrentProcessId(), pFile, pFile->h, flags, pFile->locktype)); #ifndef SQLITE_TEST UNUSED_PARAMETER(flags); #else if( (flags&0x0F)==SQLITE_SYNC_FULL ){ sqlite3_fullsync_count++; } sqlite3_sync_count++; #endif /* If we compiled with the SQLITE_NO_SYNC flag, then syncing is a ** no-op */ #ifdef SQLITE_NO_SYNC OSTRACE(("SYNC-NOP pid=%lu, pFile=%p, file=%p, rc=SQLITE_OK\n", osGetCurrentProcessId(), pFile, pFile->h)); return SQLITE_OK; #else #if SQLITE_MAX_MMAP_SIZE>0 if( pFile->pMapRegion ){ if( osFlushViewOfFile(pFile->pMapRegion, 0) ){ OSTRACE(("SYNC-MMAP pid=%lu, pFile=%p, pMapRegion=%p, " "rc=SQLITE_OK\n", osGetCurrentProcessId(), pFile, pFile->pMapRegion)); }else{ pFile->lastErrno = osGetLastError(); OSTRACE(("SYNC-MMAP pid=%lu, pFile=%p, pMapRegion=%p, " "rc=SQLITE_IOERR_MMAP\n", osGetCurrentProcessId(), pFile, pFile->pMapRegion)); return winLogError(SQLITE_IOERR_MMAP, pFile->lastErrno, "winSync1", pFile->zPath); } } #endif rc = osFlushFileBuffers(pFile->h); SimulateIOError( rc=FALSE ); if( rc ){ OSTRACE(("SYNC pid=%lu, pFile=%p, file=%p, rc=SQLITE_OK\n", osGetCurrentProcessId(), pFile, pFile->h)); return SQLITE_OK; }else{ pFile->lastErrno = osGetLastError(); OSTRACE(("SYNC pid=%lu, pFile=%p, file=%p, rc=SQLITE_IOERR_FSYNC\n", osGetCurrentProcessId(), pFile, pFile->h)); return winLogError(SQLITE_IOERR_FSYNC, pFile->lastErrno, "winSync2", pFile->zPath); } #endif } /* ** Determine the current size of a file in bytes */ |
︙ | ︙ | |||
36712 36713 36714 36715 36716 36717 36718 | sqlite3_file *fd, /* Handle open on database file */ int iRegion, /* Region to retrieve */ int szRegion, /* Size of regions */ int isWrite, /* True to extend file if necessary */ void volatile **pp /* OUT: Mapped memory */ ){ winFile *pDbFd = (winFile*)fd; | | | | | | 37000 37001 37002 37003 37004 37005 37006 37007 37008 37009 37010 37011 37012 37013 37014 37015 37016 37017 37018 37019 37020 37021 37022 37023 | sqlite3_file *fd, /* Handle open on database file */ int iRegion, /* Region to retrieve */ int szRegion, /* Size of regions */ int isWrite, /* True to extend file if necessary */ void volatile **pp /* OUT: Mapped memory */ ){ winFile *pDbFd = (winFile*)fd; winShm *pShm = pDbFd->pShm; winShmNode *pShmNode; int rc = SQLITE_OK; if( !pShm ){ rc = winOpenSharedMemory(pDbFd); if( rc!=SQLITE_OK ) return rc; pShm = pDbFd->pShm; } pShmNode = pShm->pShmNode; sqlite3_mutex_enter(pShmNode->mutex); assert( szRegion==pShmNode->szRegion || pShmNode->nRegion==0 ); if( pShmNode->nRegion<=iRegion ){ struct ShmRegion *apNew; /* New aRegion[] array */ int nByte = (iRegion+1)*szRegion; /* Minimum required file size */ |
︙ | ︙ | |||
37633 37634 37635 37636 37637 37638 37639 | dwFlagsAndAttributes, NULL))==INVALID_HANDLE_VALUE && winRetryIoerr(&cnt, &lastErrno) ){ /* Noop */ } } #endif | | | 37921 37922 37923 37924 37925 37926 37927 37928 37929 37930 37931 37932 37933 37934 37935 | dwFlagsAndAttributes, NULL))==INVALID_HANDLE_VALUE && winRetryIoerr(&cnt, &lastErrno) ){ /* Noop */ } } #endif winLogIoerr(cnt, __LINE__); OSTRACE(("OPEN file=%p, name=%s, access=%lx, rc=%s\n", h, zUtf8Name, dwDesiredAccess, (h==INVALID_HANDLE_VALUE) ? "failed" : "ok")); if( h==INVALID_HANDLE_VALUE ){ pFile->lastErrno = lastErrno; winLogError(SQLITE_CANTOPEN, pFile->lastErrno, "winOpen", zUtf8Name); |
︙ | ︙ | |||
37817 37818 37819 37820 37821 37822 37823 | } } while(1); } #endif if( rc && rc!=SQLITE_IOERR_DELETE_NOENT ){ rc = winLogError(SQLITE_IOERR_DELETE, lastErrno, "winDelete", zFilename); }else{ | | | 38105 38106 38107 38108 38109 38110 38111 38112 38113 38114 38115 38116 38117 38118 38119 | } } while(1); } #endif if( rc && rc!=SQLITE_IOERR_DELETE_NOENT ){ rc = winLogError(SQLITE_IOERR_DELETE, lastErrno, "winDelete", zFilename); }else{ winLogIoerr(cnt, __LINE__); } sqlite3_free(zConverted); OSTRACE(("DELETE name=%s, rc=%s\n", zFilename, sqlite3ErrName(rc))); return rc; } /* |
︙ | ︙ | |||
37867 37868 37869 37870 37871 37872 37873 | && sAttrData.nFileSizeHigh==0 && sAttrData.nFileSizeLow==0 ){ attr = INVALID_FILE_ATTRIBUTES; }else{ attr = sAttrData.dwFileAttributes; } }else{ | | | 38155 38156 38157 38158 38159 38160 38161 38162 38163 38164 38165 38166 38167 38168 38169 | && sAttrData.nFileSizeHigh==0 && sAttrData.nFileSizeLow==0 ){ attr = INVALID_FILE_ATTRIBUTES; }else{ attr = sAttrData.dwFileAttributes; } }else{ winLogIoerr(cnt, __LINE__); if( lastErrno!=ERROR_FILE_NOT_FOUND && lastErrno!=ERROR_PATH_NOT_FOUND ){ sqlite3_free(zConverted); return winLogError(SQLITE_IOERR_ACCESS, lastErrno, "winAccess", zFilename); }else{ attr = INVALID_FILE_ATTRIBUTES; } |
︙ | ︙ | |||
38242 38243 38244 38245 38246 38247 38248 38249 38250 38251 38252 38253 38254 38255 | #endif if( sizeof(LARGE_INTEGER)<=nBuf-n ){ LARGE_INTEGER i; osQueryPerformanceCounter(&i); memcpy(&zBuf[n], &i, sizeof(i)); n += sizeof(i); } #endif return n; } /* ** Sleep for a little while. Return the amount of time slept. | > > > > > > > > > > > > > > > > | 38530 38531 38532 38533 38534 38535 38536 38537 38538 38539 38540 38541 38542 38543 38544 38545 38546 38547 38548 38549 38550 38551 38552 38553 38554 38555 38556 38557 38558 38559 | #endif if( sizeof(LARGE_INTEGER)<=nBuf-n ){ LARGE_INTEGER i; osQueryPerformanceCounter(&i); memcpy(&zBuf[n], &i, sizeof(i)); n += sizeof(i); } #endif #if !SQLITE_OS_WINCE && !SQLITE_OS_WINRT && SQLITE_WIN32_USE_UUID if( sizeof(UUID)<=nBuf-n ){ UUID id; memset(&id, 0, sizeof(UUID)); osUuidCreate(&id); memcpy(zBuf, &id, sizeof(UUID)); n += sizeof(UUID); } if( sizeof(UUID)<=nBuf-n ){ UUID id; memset(&id, 0, sizeof(UUID)); osUuidCreateSequential(&id); memcpy(zBuf, &id, sizeof(UUID)); n += sizeof(UUID); } #endif return n; } /* ** Sleep for a little while. Return the amount of time slept. |
︙ | ︙ | |||
38366 38367 38368 38369 38370 38371 38372 | UNUSED_PARAMETER(pVfs); return winGetLastErrorMsg(osGetLastError(), nBuf, zBuf); } /* ** Initialize and deinitialize the operating system interface. */ | | | 38670 38671 38672 38673 38674 38675 38676 38677 38678 38679 38680 38681 38682 38683 38684 | UNUSED_PARAMETER(pVfs); return winGetLastErrorMsg(osGetLastError(), nBuf, zBuf); } /* ** Initialize and deinitialize the operating system interface. */ SQLITE_API int SQLITE_STDCALL sqlite3_os_init(void){ static sqlite3_vfs winVfs = { 3, /* iVersion */ sizeof(winFile), /* szOsFile */ SQLITE_WIN32_MAX_PATH_BYTES, /* mxPathname */ 0, /* pNext */ "win32", /* zName */ 0, /* pAppData */ |
︙ | ︙ | |||
38420 38421 38422 38423 38424 38425 38426 | winGetSystemCall, /* xGetSystemCall */ winNextSystemCall, /* xNextSystemCall */ }; #endif /* Double-check that the aSyscall[] array has been constructed ** correctly. See ticket [bb3a86e890c8e96ab] */ | | | | 38724 38725 38726 38727 38728 38729 38730 38731 38732 38733 38734 38735 38736 38737 38738 38739 38740 38741 38742 38743 38744 38745 38746 38747 38748 38749 38750 38751 38752 38753 38754 38755 38756 38757 38758 38759 | winGetSystemCall, /* xGetSystemCall */ winNextSystemCall, /* xNextSystemCall */ }; #endif /* Double-check that the aSyscall[] array has been constructed ** correctly. See ticket [bb3a86e890c8e96ab] */ assert( ArraySize(aSyscall)==80 ); /* get memory map allocation granularity */ memset(&winSysInfo, 0, sizeof(SYSTEM_INFO)); #if SQLITE_OS_WINRT osGetNativeSystemInfo(&winSysInfo); #else osGetSystemInfo(&winSysInfo); #endif assert( winSysInfo.dwAllocationGranularity>0 ); assert( winSysInfo.dwPageSize>0 ); sqlite3_vfs_register(&winVfs, 1); #if defined(SQLITE_WIN32_HAS_WIDE) sqlite3_vfs_register(&winLongPathVfs, 0); #endif return SQLITE_OK; } SQLITE_API int SQLITE_STDCALL sqlite3_os_end(void){ #if SQLITE_OS_WINRT if( sleepObj!=NULL ){ osCloseHandle(sleepObj); sleepObj = NULL; } #endif return SQLITE_OK; |
︙ | ︙ | |||
38979 38980 38981 38982 38983 38984 38985 | p->pCache->pPage1 = 0; } sqlite3GlobalConfig.pcache2.xUnpin(p->pCache->pCache, p->pPage, 0); } } /* | | > > > > > > > > | 39283 39284 39285 39286 39287 39288 39289 39290 39291 39292 39293 39294 39295 39296 39297 39298 39299 39300 39301 39302 39303 39304 39305 39306 39307 39308 39309 39310 | p->pCache->pPage1 = 0; } sqlite3GlobalConfig.pcache2.xUnpin(p->pCache->pCache, p->pPage, 0); } } /* ** Compute the number of pages of cache requested. p->szCache is the ** cache size requested by the "PRAGMA cache_size" statement. ** ** */ static int numberOfCachePages(PCache *p){ if( p->szCache>=0 ){ /* IMPLEMENTATION-OF: R-42059-47211 If the argument N is positive then the ** suggested cache size is set to N. */ return p->szCache; }else{ /* IMPLEMENTATION-OF: R-61436-13639 If the argument N is negative, then ** the number of cache pages is adjusted to use approximately abs(N*1024) ** bytes of memory. */ return (int)((-1024*(i64)p->szCache)/(p->szPage+p->szExtra)); } } /*************************************************** General Interfaces ****** ** ** Initialize and shutdown the page cache subsystem. Neither of these |
︙ | ︙ | |||
39724 39725 39726 39727 39728 39729 39730 | ** ** Multiple threads can run this routine at the same time. Global variables ** in pcache1 need to be protected via mutex. */ static void *pcache1Alloc(int nByte){ void *p = 0; assert( sqlite3_mutex_notheld(pcache1.grp.mutex) ); | < > | > | | | | 40036 40037 40038 40039 40040 40041 40042 40043 40044 40045 40046 40047 40048 40049 40050 40051 40052 40053 40054 40055 40056 40057 40058 40059 40060 40061 40062 40063 40064 40065 40066 40067 40068 40069 40070 40071 40072 40073 40074 40075 40076 40077 40078 40079 40080 40081 40082 40083 40084 40085 40086 40087 40088 40089 40090 40091 40092 40093 40094 40095 40096 40097 40098 40099 40100 40101 40102 40103 40104 40105 | ** ** Multiple threads can run this routine at the same time. Global variables ** in pcache1 need to be protected via mutex. */ static void *pcache1Alloc(int nByte){ void *p = 0; assert( sqlite3_mutex_notheld(pcache1.grp.mutex) ); if( nByte<=pcache1.szSlot ){ sqlite3_mutex_enter(pcache1.mutex); p = (PgHdr1 *)pcache1.pFree; if( p ){ pcache1.pFree = pcache1.pFree->pNext; pcache1.nFreeSlot--; pcache1.bUnderPressure = pcache1.nFreeSlot<pcache1.nReserve; assert( pcache1.nFreeSlot>=0 ); sqlite3StatusSet(SQLITE_STATUS_PAGECACHE_SIZE, nByte); sqlite3StatusUp(SQLITE_STATUS_PAGECACHE_USED, 1); } sqlite3_mutex_leave(pcache1.mutex); } if( p==0 ){ /* Memory is not available in the SQLITE_CONFIG_PAGECACHE pool. Get ** it from sqlite3Malloc instead. */ p = sqlite3Malloc(nByte); #ifndef SQLITE_DISABLE_PAGECACHE_OVERFLOW_STATS if( p ){ int sz = sqlite3MallocSize(p); sqlite3_mutex_enter(pcache1.mutex); sqlite3StatusSet(SQLITE_STATUS_PAGECACHE_SIZE, nByte); sqlite3StatusUp(SQLITE_STATUS_PAGECACHE_OVERFLOW, sz); sqlite3_mutex_leave(pcache1.mutex); } #endif sqlite3MemdebugSetType(p, MEMTYPE_PCACHE); } return p; } /* ** Free an allocated buffer obtained from pcache1Alloc(). */ static int pcache1Free(void *p){ int nFreed = 0; if( p==0 ) return 0; if( p>=pcache1.pStart && p<pcache1.pEnd ){ PgFreeslot *pSlot; sqlite3_mutex_enter(pcache1.mutex); sqlite3StatusDown(SQLITE_STATUS_PAGECACHE_USED, 1); pSlot = (PgFreeslot*)p; pSlot->pNext = pcache1.pFree; pcache1.pFree = pSlot; pcache1.nFreeSlot++; pcache1.bUnderPressure = pcache1.nFreeSlot<pcache1.nReserve; assert( pcache1.nFreeSlot<=pcache1.nSlot ); sqlite3_mutex_leave(pcache1.mutex); }else{ assert( sqlite3MemdebugHasType(p, MEMTYPE_PCACHE) ); sqlite3MemdebugSetType(p, MEMTYPE_HEAP); nFreed = sqlite3MallocSize(p); #ifndef SQLITE_DISABLE_PAGECACHE_OVERFLOW_STATS sqlite3_mutex_enter(pcache1.mutex); sqlite3StatusDown(SQLITE_STATUS_PAGECACHE_OVERFLOW, nFreed); sqlite3_mutex_leave(pcache1.mutex); #endif sqlite3_free(p); } return nFreed; } |
︙ | ︙ | |||
40514 40515 40516 40517 40518 40519 40520 40521 40522 40523 40524 40525 40526 40527 | sqlite3_config(SQLITE_CONFIG_PCACHE2, &defaultMethods); } /* ** Return the size of the header on each page of this PCACHE implementation. */ SQLITE_PRIVATE int sqlite3HeaderSizePcache1(void){ return ROUND8(sizeof(PgHdr1)); } #ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT /* ** This function is called to free superfluous dynamically allocated memory ** held by the pager system. Memory in use by any SQLite pager allocated ** by the current thread may be sqlite3_free()ed. ** | > > > > > > > > | 40827 40828 40829 40830 40831 40832 40833 40834 40835 40836 40837 40838 40839 40840 40841 40842 40843 40844 40845 40846 40847 40848 | sqlite3_config(SQLITE_CONFIG_PCACHE2, &defaultMethods); } /* ** Return the size of the header on each page of this PCACHE implementation. */ SQLITE_PRIVATE int sqlite3HeaderSizePcache1(void){ return ROUND8(sizeof(PgHdr1)); } /* ** Return the global mutex used by this PCACHE implementation. The ** sqlite3_status() routine needs access to this mutex. */ SQLITE_PRIVATE sqlite3_mutex *sqlite3Pcache1Mutex(void){ return pcache1.mutex; } #ifdef SQLITE_ENABLE_MEMORY_MANAGEMENT /* ** This function is called to free superfluous dynamically allocated memory ** held by the pager system. Memory in use by any SQLite pager allocated ** by the current thread may be sqlite3_free()ed. ** |
︙ | ︙ | |||
49287 49288 49289 49290 49291 49292 49293 | } static void walUnlockShared(Wal *pWal, int lockIdx){ if( pWal->exclusiveMode ) return; (void)sqlite3OsShmLock(pWal->pDbFd, lockIdx, 1, SQLITE_SHM_UNLOCK | SQLITE_SHM_SHARED); WALTRACE(("WAL%p: release SHARED-%s\n", pWal, walLockName(lockIdx))); } | | > | 49608 49609 49610 49611 49612 49613 49614 49615 49616 49617 49618 49619 49620 49621 49622 49623 49624 49625 | } static void walUnlockShared(Wal *pWal, int lockIdx){ if( pWal->exclusiveMode ) return; (void)sqlite3OsShmLock(pWal->pDbFd, lockIdx, 1, SQLITE_SHM_UNLOCK | SQLITE_SHM_SHARED); WALTRACE(("WAL%p: release SHARED-%s\n", pWal, walLockName(lockIdx))); } static int walLockExclusive(Wal *pWal, int lockIdx, int n, int fBlock){ int rc; if( pWal->exclusiveMode ) return SQLITE_OK; if( fBlock ) sqlite3OsFileControl(pWal->pDbFd, SQLITE_FCNTL_WAL_BLOCK, 0); rc = sqlite3OsShmLock(pWal->pDbFd, lockIdx, n, SQLITE_SHM_LOCK | SQLITE_SHM_EXCLUSIVE); WALTRACE(("WAL%p: acquire EXCLUSIVE-%s cnt=%d %s\n", pWal, walLockName(lockIdx), n, rc ? "failed" : "ok")); VVA_ONLY( pWal->lockError = (u8)(rc!=SQLITE_OK && rc!=SQLITE_BUSY); ) return rc; } |
︙ | ︙ | |||
49575 49576 49577 49578 49579 49580 49581 | */ assert( pWal->ckptLock==1 || pWal->ckptLock==0 ); assert( WAL_ALL_BUT_WRITE==WAL_WRITE_LOCK+1 ); assert( WAL_CKPT_LOCK==WAL_ALL_BUT_WRITE ); assert( pWal->writeLock ); iLock = WAL_ALL_BUT_WRITE + pWal->ckptLock; nLock = SQLITE_SHM_NLOCK - iLock; | | | 49897 49898 49899 49900 49901 49902 49903 49904 49905 49906 49907 49908 49909 49910 49911 | */ assert( pWal->ckptLock==1 || pWal->ckptLock==0 ); assert( WAL_ALL_BUT_WRITE==WAL_WRITE_LOCK+1 ); assert( WAL_CKPT_LOCK==WAL_ALL_BUT_WRITE ); assert( pWal->writeLock ); iLock = WAL_ALL_BUT_WRITE + pWal->ckptLock; nLock = SQLITE_SHM_NLOCK - iLock; rc = walLockExclusive(pWal, iLock, nLock, 0); if( rc ){ return rc; } WALTRACE(("WAL%p: recovery begin...\n", pWal)); memset(&pWal->hdr, 0, sizeof(WalIndexHdr)); |
︙ | ︙ | |||
50109 50110 50111 50112 50113 50114 50115 | int (*xBusy)(void*), /* Function to call when busy */ void *pBusyArg, /* Context argument for xBusyHandler */ int lockIdx, /* Offset of first byte to lock */ int n /* Number of bytes to lock */ ){ int rc; do { | | | 50431 50432 50433 50434 50435 50436 50437 50438 50439 50440 50441 50442 50443 50444 50445 | int (*xBusy)(void*), /* Function to call when busy */ void *pBusyArg, /* Context argument for xBusyHandler */ int lockIdx, /* Offset of first byte to lock */ int n /* Number of bytes to lock */ ){ int rc; do { rc = walLockExclusive(pWal, lockIdx, n, 0); }while( xBusy && rc==SQLITE_BUSY && xBusy(pBusyArg) ); return rc; } /* ** The cache of the wal-index header must be valid to call this function. ** Return the page-size in bytes used by the database. |
︙ | ︙ | |||
50542 50543 50544 50545 50546 50547 50548 | assert( badHdr==0 || pWal->writeLock==0 ); if( badHdr ){ if( pWal->readOnly & WAL_SHM_RDONLY ){ if( SQLITE_OK==(rc = walLockShared(pWal, WAL_WRITE_LOCK)) ){ walUnlockShared(pWal, WAL_WRITE_LOCK); rc = SQLITE_READONLY_RECOVERY; } | | | 50864 50865 50866 50867 50868 50869 50870 50871 50872 50873 50874 50875 50876 50877 50878 | assert( badHdr==0 || pWal->writeLock==0 ); if( badHdr ){ if( pWal->readOnly & WAL_SHM_RDONLY ){ if( SQLITE_OK==(rc = walLockShared(pWal, WAL_WRITE_LOCK)) ){ walUnlockShared(pWal, WAL_WRITE_LOCK); rc = SQLITE_READONLY_RECOVERY; } }else if( SQLITE_OK==(rc = walLockExclusive(pWal, WAL_WRITE_LOCK, 1, 1)) ){ pWal->writeLock = 1; if( SQLITE_OK==(rc = walIndexPage(pWal, 0, &page0)) ){ badHdr = walIndexTryHdr(pWal, pChanged); if( badHdr ){ /* If the wal-index header is still malformed even while holding ** a WRITE lock, it can only mean that the header is corrupted and ** needs to be reconstructed. So run recovery to do exactly that. |
︙ | ︙ | |||
50748 50749 50750 50751 50752 50753 50754 | } /* There was once an "if" here. The extra "{" is to preserve indentation. */ { if( (pWal->readOnly & WAL_SHM_RDONLY)==0 && (mxReadMark<pWal->hdr.mxFrame || mxI==0) ){ for(i=1; i<WAL_NREADER; i++){ | | | 51070 51071 51072 51073 51074 51075 51076 51077 51078 51079 51080 51081 51082 51083 51084 | } /* There was once an "if" here. The extra "{" is to preserve indentation. */ { if( (pWal->readOnly & WAL_SHM_RDONLY)==0 && (mxReadMark<pWal->hdr.mxFrame || mxI==0) ){ for(i=1; i<WAL_NREADER; i++){ rc = walLockExclusive(pWal, WAL_READ_LOCK(i), 1, 0); if( rc==SQLITE_OK ){ mxReadMark = pInfo->aReadMark[i] = pWal->hdr.mxFrame; mxI = i; walUnlockExclusive(pWal, WAL_READ_LOCK(i), 1); break; }else if( rc!=SQLITE_BUSY ){ return rc; |
︙ | ︙ | |||
51004 51005 51006 51007 51008 51009 51010 | if( pWal->readOnly ){ return SQLITE_READONLY; } /* Only one writer allowed at a time. Get the write lock. Return ** SQLITE_BUSY if unable. */ | | | 51326 51327 51328 51329 51330 51331 51332 51333 51334 51335 51336 51337 51338 51339 51340 | if( pWal->readOnly ){ return SQLITE_READONLY; } /* Only one writer allowed at a time. Get the write lock. Return ** SQLITE_BUSY if unable. */ rc = walLockExclusive(pWal, WAL_WRITE_LOCK, 1, 0); if( rc ){ return rc; } pWal->writeLock = 1; /* If another connection has written to the database file since the ** time the read transaction on this connection was started, then |
︙ | ︙ | |||
51149 51150 51151 51152 51153 51154 51155 | if( pWal->readLock==0 ){ volatile WalCkptInfo *pInfo = walCkptInfo(pWal); assert( pInfo->nBackfill==pWal->hdr.mxFrame ); if( pInfo->nBackfill>0 ){ u32 salt1; sqlite3_randomness(4, &salt1); | | | 51471 51472 51473 51474 51475 51476 51477 51478 51479 51480 51481 51482 51483 51484 51485 | if( pWal->readLock==0 ){ volatile WalCkptInfo *pInfo = walCkptInfo(pWal); assert( pInfo->nBackfill==pWal->hdr.mxFrame ); if( pInfo->nBackfill>0 ){ u32 salt1; sqlite3_randomness(4, &salt1); rc = walLockExclusive(pWal, WAL_READ_LOCK(1), WAL_NREADER-1, 0); if( rc==SQLITE_OK ){ /* If all readers are using WAL_READ_LOCK(0) (in other words if no ** readers are currently using the WAL), then the transactions ** frames will overwrite the start of the existing log. Update the ** wal-index header to reflect this. ** ** In theory it would be Ok to update the cache of the header only |
︙ | ︙ | |||
51474 51475 51476 51477 51478 51479 51480 | assert( eMode!=SQLITE_CHECKPOINT_PASSIVE || xBusy==0 ); if( pWal->readOnly ) return SQLITE_READONLY; WALTRACE(("WAL%p: checkpoint begins\n", pWal)); /* IMPLEMENTATION-OF: R-62028-47212 All calls obtain an exclusive ** "checkpoint" lock on the database file. */ | | | 51796 51797 51798 51799 51800 51801 51802 51803 51804 51805 51806 51807 51808 51809 51810 | assert( eMode!=SQLITE_CHECKPOINT_PASSIVE || xBusy==0 ); if( pWal->readOnly ) return SQLITE_READONLY; WALTRACE(("WAL%p: checkpoint begins\n", pWal)); /* IMPLEMENTATION-OF: R-62028-47212 All calls obtain an exclusive ** "checkpoint" lock on the database file. */ rc = walLockExclusive(pWal, WAL_CKPT_LOCK, 1, 0); if( rc ){ /* EVIDENCE-OF: R-10421-19736 If any other process is running a ** checkpoint operation at the same time, the lock cannot be obtained and ** SQLITE_BUSY is returned. ** EVIDENCE-OF: R-53820-33897 Even if there is a busy-handler configured, ** it will not be invoked in this case. */ |
︙ | ︙ | |||
51949 51950 51951 51952 51953 51954 51955 51956 51957 51958 51959 51960 51961 51962 | u8 intKey; /* True if table b-trees. False for index b-trees */ u8 intKeyLeaf; /* True if the leaf of an intKey table */ u8 noPayload; /* True if internal intKey page (thus w/o data) */ u8 leaf; /* True if a leaf page */ u8 hdrOffset; /* 100 for page 1. 0 otherwise */ u8 childPtrSize; /* 0 if leaf==1. 4 if leaf==0 */ u8 max1bytePayload; /* min(maxLocal,127) */ u16 maxLocal; /* Copy of BtShared.maxLocal or BtShared.maxLeaf */ u16 minLocal; /* Copy of BtShared.minLocal or BtShared.minLeaf */ u16 cellOffset; /* Index in aData of first cell pointer */ u16 nFree; /* Number of free bytes on the page */ u16 nCell; /* Number of cells on this page, local and ovfl */ u16 maskPage; /* Mask for page offset */ u16 aiOvfl[5]; /* Insert the i-th overflow cell before the aiOvfl-th | > | 52271 52272 52273 52274 52275 52276 52277 52278 52279 52280 52281 52282 52283 52284 52285 | u8 intKey; /* True if table b-trees. False for index b-trees */ u8 intKeyLeaf; /* True if the leaf of an intKey table */ u8 noPayload; /* True if internal intKey page (thus w/o data) */ u8 leaf; /* True if a leaf page */ u8 hdrOffset; /* 100 for page 1. 0 otherwise */ u8 childPtrSize; /* 0 if leaf==1. 4 if leaf==0 */ u8 max1bytePayload; /* min(maxLocal,127) */ u8 bBusy; /* Prevent endless loops on corrupt database files */ u16 maxLocal; /* Copy of BtShared.maxLocal or BtShared.maxLeaf */ u16 minLocal; /* Copy of BtShared.minLocal or BtShared.minLeaf */ u16 cellOffset; /* Index in aData of first cell pointer */ u16 nFree; /* Number of free bytes on the page */ u16 nCell; /* Number of cells on this page, local and ovfl */ u16 maskPage; /* Mask for page offset */ u16 aiOvfl[5]; /* Insert the i-th overflow cell before the aiOvfl-th |
︙ | ︙ | |||
52087 52088 52089 52090 52091 52092 52093 52094 52095 52096 52097 52098 52099 52100 | #ifndef SQLITE_OMIT_AUTOVACUUM u8 autoVacuum; /* True if auto-vacuum is enabled */ u8 incrVacuum; /* True if incr-vacuum is enabled */ u8 bDoTruncate; /* True to truncate db on commit */ #endif u8 inTransaction; /* Transaction state */ u8 max1bytePayload; /* Maximum first byte of cell for a 1-byte payload */ u16 btsFlags; /* Boolean parameters. See BTS_* macros below */ u16 maxLocal; /* Maximum local payload in non-LEAFDATA tables */ u16 minLocal; /* Minimum local payload in non-LEAFDATA tables */ u16 maxLeaf; /* Maximum local payload in a LEAFDATA table */ u16 minLeaf; /* Minimum local payload in a LEAFDATA table */ u32 pageSize; /* Total number of bytes on a page */ u32 usableSize; /* Number of usable bytes on each page */ | > > > | 52410 52411 52412 52413 52414 52415 52416 52417 52418 52419 52420 52421 52422 52423 52424 52425 52426 | #ifndef SQLITE_OMIT_AUTOVACUUM u8 autoVacuum; /* True if auto-vacuum is enabled */ u8 incrVacuum; /* True if incr-vacuum is enabled */ u8 bDoTruncate; /* True to truncate db on commit */ #endif u8 inTransaction; /* Transaction state */ u8 max1bytePayload; /* Maximum first byte of cell for a 1-byte payload */ #ifdef SQLITE_HAS_CODEC u8 optimalReserve; /* Desired amount of reserved space per page */ #endif u16 btsFlags; /* Boolean parameters. See BTS_* macros below */ u16 maxLocal; /* Maximum local payload in non-LEAFDATA tables */ u16 minLocal; /* Minimum local payload in non-LEAFDATA tables */ u16 maxLeaf; /* Maximum local payload in a LEAFDATA table */ u16 minLeaf; /* Minimum local payload in a LEAFDATA table */ u32 pageSize; /* Total number of bytes on a page */ u32 usableSize; /* Number of usable bytes on each page */ |
︙ | ︙ | |||
52473 52474 52475 52476 52477 52478 52479 52480 52481 52482 52483 52484 52485 52486 | } /* ** Exit the recursive mutex on a Btree. */ SQLITE_PRIVATE void sqlite3BtreeLeave(Btree *p){ if( p->sharable ){ assert( p->wantToLock>0 ); p->wantToLock--; if( p->wantToLock==0 ){ unlockBtreeMutex(p); } } | > | 52799 52800 52801 52802 52803 52804 52805 52806 52807 52808 52809 52810 52811 52812 52813 | } /* ** Exit the recursive mutex on a Btree. */ SQLITE_PRIVATE void sqlite3BtreeLeave(Btree *p){ assert( sqlite3_mutex_held(p->db->mutex) ); if( p->sharable ){ assert( p->wantToLock>0 ); p->wantToLock--; if( p->wantToLock==0 ){ unlockBtreeMutex(p); } } |
︙ | ︙ | |||
52720 52721 52722 52723 52724 52725 52726 | /* ** Enable or disable the shared pager and schema features. ** ** This routine has no effect on existing database connections. ** The shared cache setting effects only future calls to ** sqlite3_open(), sqlite3_open16(), or sqlite3_open_v2(). */ | | | 53047 53048 53049 53050 53051 53052 53053 53054 53055 53056 53057 53058 53059 53060 53061 | /* ** Enable or disable the shared pager and schema features. ** ** This routine has no effect on existing database connections. ** The shared cache setting effects only future calls to ** sqlite3_open(), sqlite3_open16(), or sqlite3_open_v2(). */ SQLITE_API int SQLITE_STDCALL sqlite3_enable_shared_cache(int enable){ sqlite3GlobalConfig.sharedCacheEnabled = enable; return SQLITE_OK; } #endif |
︙ | ︙ | |||
52809 52810 52811 52812 52813 52814 52815 52816 52817 52818 52819 52820 52821 52822 | ** written. For index b-trees, it is the root page of the associated ** table. */ if( isIndex ){ HashElem *p; for(p=sqliteHashFirst(&pSchema->idxHash); p; p=sqliteHashNext(p)){ Index *pIdx = (Index *)sqliteHashData(p); if( pIdx->tnum==(int)iRoot ){ iTab = pIdx->pTable->tnum; } } }else{ iTab = iRoot; } | > > > > > > | 53136 53137 53138 53139 53140 53141 53142 53143 53144 53145 53146 53147 53148 53149 53150 53151 53152 53153 53154 53155 | ** written. For index b-trees, it is the root page of the associated ** table. */ if( isIndex ){ HashElem *p; for(p=sqliteHashFirst(&pSchema->idxHash); p; p=sqliteHashNext(p)){ Index *pIdx = (Index *)sqliteHashData(p); if( pIdx->tnum==(int)iRoot ){ if( iTab ){ /* Two or more indexes share the same root page. There must ** be imposter tables. So just return true. The assert is not ** useful in that case. */ return 1; } iTab = pIdx->pTable->tnum; } } }else{ iTab = iRoot; } |
︙ | ︙ | |||
53228 53229 53230 53231 53232 53233 53234 | ** ** The caller must ensure that the cursor is valid (has eState==CURSOR_VALID) ** prior to calling this routine. */ static int saveCursorPosition(BtCursor *pCur){ int rc; | | > > > > > | 53561 53562 53563 53564 53565 53566 53567 53568 53569 53570 53571 53572 53573 53574 53575 53576 53577 53578 53579 53580 53581 53582 53583 | ** ** The caller must ensure that the cursor is valid (has eState==CURSOR_VALID) ** prior to calling this routine. */ static int saveCursorPosition(BtCursor *pCur){ int rc; assert( CURSOR_VALID==pCur->eState || CURSOR_SKIPNEXT==pCur->eState ); assert( 0==pCur->pKey ); assert( cursorHoldsMutex(pCur) ); if( pCur->eState==CURSOR_SKIPNEXT ){ pCur->eState = CURSOR_VALID; }else{ pCur->skipNext = 0; } rc = sqlite3BtreeKeySize(pCur, &pCur->nKey); assert( rc==SQLITE_OK ); /* KeySize() cannot fail */ /* If this is an intKey table, then the above call to BtreeKeySize() ** stores the integer key in pCur->nKey. In this case this value is ** all that is required. Otherwise, if pCur is not open on an intKey ** table, then malloc space for and store the pCur->nKey bytes of key |
︙ | ︙ | |||
53302 53303 53304 53305 53306 53307 53308 | static int SQLITE_NOINLINE saveCursorsOnList( BtCursor *p, /* The first cursor that needs saving */ Pgno iRoot, /* Only save cursor with this iRoot. Save all if zero */ BtCursor *pExcept /* Do not save this cursor */ ){ do{ if( p!=pExcept && (0==iRoot || p->pgnoRoot==iRoot) ){ | | | 53640 53641 53642 53643 53644 53645 53646 53647 53648 53649 53650 53651 53652 53653 53654 | static int SQLITE_NOINLINE saveCursorsOnList( BtCursor *p, /* The first cursor that needs saving */ Pgno iRoot, /* Only save cursor with this iRoot. Save all if zero */ BtCursor *pExcept /* Do not save this cursor */ ){ do{ if( p!=pExcept && (0==iRoot || p->pgnoRoot==iRoot) ){ if( p->eState==CURSOR_VALID || p->eState==CURSOR_SKIPNEXT ){ int rc = saveCursorPosition(p); if( SQLITE_OK!=rc ){ return rc; } }else{ testcase( p->iPage>0 ); btreeReleaseAllCursorPages(p); |
︙ | ︙ | |||
53374 53375 53376 53377 53378 53379 53380 53381 53382 53383 53384 53385 53386 | ** when saveCursorPosition() was called. Note that this call deletes the ** saved position info stored by saveCursorPosition(), so there can be ** at most one effective restoreCursorPosition() call after each ** saveCursorPosition(). */ static int btreeRestoreCursorPosition(BtCursor *pCur){ int rc; assert( cursorHoldsMutex(pCur) ); assert( pCur->eState>=CURSOR_REQUIRESEEK ); if( pCur->eState==CURSOR_FAULT ){ return pCur->skipNext; } pCur->eState = CURSOR_INVALID; | > | > | 53712 53713 53714 53715 53716 53717 53718 53719 53720 53721 53722 53723 53724 53725 53726 53727 53728 53729 53730 53731 53732 53733 53734 53735 53736 53737 53738 | ** when saveCursorPosition() was called. Note that this call deletes the ** saved position info stored by saveCursorPosition(), so there can be ** at most one effective restoreCursorPosition() call after each ** saveCursorPosition(). */ static int btreeRestoreCursorPosition(BtCursor *pCur){ int rc; int skipNext; assert( cursorHoldsMutex(pCur) ); assert( pCur->eState>=CURSOR_REQUIRESEEK ); if( pCur->eState==CURSOR_FAULT ){ return pCur->skipNext; } pCur->eState = CURSOR_INVALID; rc = btreeMoveto(pCur, pCur->pKey, pCur->nKey, 0, &skipNext); if( rc==SQLITE_OK ){ sqlite3_free(pCur->pKey); pCur->pKey = 0; assert( pCur->eState==CURSOR_VALID || pCur->eState==CURSOR_INVALID ); pCur->skipNext |= skipNext; if( pCur->skipNext && pCur->eState==CURSOR_VALID ){ pCur->eState = CURSOR_SKIPNEXT; } } return rc; } |
︙ | ︙ | |||
53436 53437 53438 53439 53440 53441 53442 | assert( pCur!=0 ); assert( pCur->eState!=CURSOR_VALID ); rc = restoreCursorPosition(pCur); if( rc ){ *pDifferentRow = 1; return rc; } | | > | 53776 53777 53778 53779 53780 53781 53782 53783 53784 53785 53786 53787 53788 53789 53790 53791 53792 53793 | assert( pCur!=0 ); assert( pCur->eState!=CURSOR_VALID ); rc = restoreCursorPosition(pCur); if( rc ){ *pDifferentRow = 1; return rc; } if( pCur->eState!=CURSOR_VALID ){ *pDifferentRow = 1; }else{ assert( pCur->skipNext==0 ); *pDifferentRow = 0; } return SQLITE_OK; } #ifndef SQLITE_OMIT_AUTOVACUUM /* |
︙ | ︙ | |||
54579 54580 54581 54582 54583 54584 54585 54586 | #if !defined(SQLITE_OMIT_SHARED_CACHE) && !defined(SQLITE_OMIT_DISKIO) /* ** If this Btree is a candidate for shared cache, try to find an ** existing BtShared object that we can share with */ if( isTempDb==0 && (isMemdb==0 || (vfsFlags&SQLITE_OPEN_URI)!=0) ){ if( vfsFlags & SQLITE_OPEN_SHAREDCACHE ){ int nFullPathname = pVfs->mxPathname+1; | > | > | | 54920 54921 54922 54923 54924 54925 54926 54927 54928 54929 54930 54931 54932 54933 54934 54935 54936 54937 54938 54939 54940 54941 54942 54943 54944 54945 | #if !defined(SQLITE_OMIT_SHARED_CACHE) && !defined(SQLITE_OMIT_DISKIO) /* ** If this Btree is a candidate for shared cache, try to find an ** existing BtShared object that we can share with */ if( isTempDb==0 && (isMemdb==0 || (vfsFlags&SQLITE_OPEN_URI)!=0) ){ if( vfsFlags & SQLITE_OPEN_SHAREDCACHE ){ int nFilename = sqlite3Strlen30(zFilename)+1; int nFullPathname = pVfs->mxPathname+1; char *zFullPathname = sqlite3Malloc(MAX(nFullPathname,nFilename)); MUTEX_LOGIC( sqlite3_mutex *mutexShared; ) p->sharable = 1; if( !zFullPathname ){ sqlite3_free(p); return SQLITE_NOMEM; } if( isMemdb ){ memcpy(zFullPathname, zFilename, nFilename); }else{ rc = sqlite3OsFullPathname(pVfs, zFilename, nFullPathname, zFullPathname); if( rc ){ sqlite3_free(zFullPathname); sqlite3_free(p); return rc; |
︙ | ︙ | |||
54645 54646 54647 54648 54649 54650 54651 | #endif if( pBt==0 ){ /* ** The following asserts make sure that structures used by the btree are ** the right size. This is to guard against size changes that result ** when compiling on a different architecture. */ | | | | 54988 54989 54990 54991 54992 54993 54994 54995 54996 54997 54998 54999 55000 55001 55002 55003 | #endif if( pBt==0 ){ /* ** The following asserts make sure that structures used by the btree are ** the right size. This is to guard against size changes that result ** when compiling on a different architecture. */ assert( sizeof(i64)==8 ); assert( sizeof(u64)==8 ); assert( sizeof(u32)==4 ); assert( sizeof(u16)==2 ); assert( sizeof(Pgno)==4 ); pBt = sqlite3MallocZero( sizeof(*pBt) ); if( pBt==0 ){ rc = SQLITE_NOMEM; |
︙ | ︙ | |||
55033 55034 55035 55036 55037 55038 55039 55040 55041 55042 55043 55044 55045 55046 | ** and autovacuum mode can no longer be changed. */ SQLITE_PRIVATE int sqlite3BtreeSetPageSize(Btree *p, int pageSize, int nReserve, int iFix){ int rc = SQLITE_OK; BtShared *pBt = p->pBt; assert( nReserve>=-1 && nReserve<=255 ); sqlite3BtreeEnter(p); if( pBt->btsFlags & BTS_PAGESIZE_FIXED ){ sqlite3BtreeLeave(p); return SQLITE_READONLY; } if( nReserve<0 ){ nReserve = pBt->pageSize - pBt->usableSize; } | > > > | 55376 55377 55378 55379 55380 55381 55382 55383 55384 55385 55386 55387 55388 55389 55390 55391 55392 | ** and autovacuum mode can no longer be changed. */ SQLITE_PRIVATE int sqlite3BtreeSetPageSize(Btree *p, int pageSize, int nReserve, int iFix){ int rc = SQLITE_OK; BtShared *pBt = p->pBt; assert( nReserve>=-1 && nReserve<=255 ); sqlite3BtreeEnter(p); #if SQLITE_HAS_CODEC if( nReserve>pBt->optimalReserve ) pBt->optimalReserve = (u8)nReserve; #endif if( pBt->btsFlags & BTS_PAGESIZE_FIXED ){ sqlite3BtreeLeave(p); return SQLITE_READONLY; } if( nReserve<0 ){ nReserve = pBt->pageSize - pBt->usableSize; } |
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55062 55063 55064 55065 55066 55067 55068 | /* ** Return the currently defined page size */ SQLITE_PRIVATE int sqlite3BtreeGetPageSize(Btree *p){ return p->pBt->pageSize; } | < > | > < < > > > > | > > | > > | 55408 55409 55410 55411 55412 55413 55414 55415 55416 55417 55418 55419 55420 55421 55422 55423 55424 55425 55426 55427 55428 55429 55430 55431 55432 55433 55434 55435 55436 55437 55438 55439 55440 55441 55442 55443 55444 55445 55446 55447 55448 55449 55450 55451 55452 55453 55454 55455 55456 55457 55458 55459 | /* ** Return the currently defined page size */ SQLITE_PRIVATE int sqlite3BtreeGetPageSize(Btree *p){ return p->pBt->pageSize; } /* ** This function is similar to sqlite3BtreeGetReserve(), except that it ** may only be called if it is guaranteed that the b-tree mutex is already ** held. ** ** This is useful in one special case in the backup API code where it is ** known that the shared b-tree mutex is held, but the mutex on the ** database handle that owns *p is not. In this case if sqlite3BtreeEnter() ** were to be called, it might collide with some other operation on the ** database handle that owns *p, causing undefined behavior. */ SQLITE_PRIVATE int sqlite3BtreeGetReserveNoMutex(Btree *p){ int n; assert( sqlite3_mutex_held(p->pBt->mutex) ); n = p->pBt->pageSize - p->pBt->usableSize; return n; } /* ** Return the number of bytes of space at the end of every page that ** are intentually left unused. This is the "reserved" space that is ** sometimes used by extensions. ** ** If SQLITE_HAS_MUTEX is defined then the number returned is the ** greater of the current reserved space and the maximum requested ** reserve space. */ SQLITE_PRIVATE int sqlite3BtreeGetOptimalReserve(Btree *p){ int n; sqlite3BtreeEnter(p); n = sqlite3BtreeGetReserveNoMutex(p); #ifdef SQLITE_HAS_CODEC if( n<p->pBt->optimalReserve ) n = p->pBt->optimalReserve; #endif sqlite3BtreeLeave(p); return n; } /* ** Set the maximum page count for a database if mxPage is positive. ** No changes are made if mxPage is 0 or negative. ** Regardless of the value of mxPage, return the maximum page count. */ SQLITE_PRIVATE int sqlite3BtreeMaxPageCount(Btree *p, int mxPage){ |
︙ | ︙ | |||
55124 55125 55126 55127 55128 55129 55130 | p->pBt->btsFlags &= ~BTS_SECURE_DELETE; if( newFlag ) p->pBt->btsFlags |= BTS_SECURE_DELETE; } b = (p->pBt->btsFlags & BTS_SECURE_DELETE)!=0; sqlite3BtreeLeave(p); return b; } | < | 55477 55478 55479 55480 55481 55482 55483 55484 55485 55486 55487 55488 55489 55490 | p->pBt->btsFlags &= ~BTS_SECURE_DELETE; if( newFlag ) p->pBt->btsFlags |= BTS_SECURE_DELETE; } b = (p->pBt->btsFlags & BTS_SECURE_DELETE)!=0; sqlite3BtreeLeave(p); return b; } /* ** Change the 'auto-vacuum' property of the database. If the 'autoVacuum' ** parameter is non-zero, then auto-vacuum mode is enabled. If zero, it ** is disabled. The default value for the auto-vacuum property is ** determined by the SQLITE_DEFAULT_AUTOVACUUM macro. */ |
︙ | ︙ | |||
56244 56245 56246 56247 56248 56249 56250 | assert( (writeOnly==0 || writeOnly==1) && BTCF_WriteFlag==1 ); if( pBtree ){ sqlite3BtreeEnter(pBtree); for(p=pBtree->pBt->pCursor; p; p=p->pNext){ int i; if( writeOnly && (p->curFlags & BTCF_WriteFlag)==0 ){ | | | 56596 56597 56598 56599 56600 56601 56602 56603 56604 56605 56606 56607 56608 56609 56610 | assert( (writeOnly==0 || writeOnly==1) && BTCF_WriteFlag==1 ); if( pBtree ){ sqlite3BtreeEnter(pBtree); for(p=pBtree->pBt->pCursor; p; p=p->pNext){ int i; if( writeOnly && (p->curFlags & BTCF_WriteFlag)==0 ){ if( p->eState==CURSOR_VALID || p->eState==CURSOR_SKIPNEXT ){ rc = saveCursorPosition(p); if( rc!=SQLITE_OK ){ (void)sqlite3BtreeTripAllCursors(pBtree, rc, 0); break; } } }else{ |
︙ | ︙ | |||
56650 56651 56652 56653 56654 56655 56656 56657 56658 56659 56660 56661 56662 56663 | ** Failure is not possible. This function always returns SQLITE_OK. ** It might just as well be a procedure (returning void) but we continue ** to return an integer result code for historical reasons. */ SQLITE_PRIVATE int sqlite3BtreeDataSize(BtCursor *pCur, u32 *pSize){ assert( cursorHoldsMutex(pCur) ); assert( pCur->eState==CURSOR_VALID ); assert( pCur->apPage[pCur->iPage]->intKeyLeaf==1 ); getCellInfo(pCur); *pSize = pCur->info.nPayload; return SQLITE_OK; } /* | > > | 57002 57003 57004 57005 57006 57007 57008 57009 57010 57011 57012 57013 57014 57015 57016 57017 | ** Failure is not possible. This function always returns SQLITE_OK. ** It might just as well be a procedure (returning void) but we continue ** to return an integer result code for historical reasons. */ SQLITE_PRIVATE int sqlite3BtreeDataSize(BtCursor *pCur, u32 *pSize){ assert( cursorHoldsMutex(pCur) ); assert( pCur->eState==CURSOR_VALID ); assert( pCur->iPage>=0 ); assert( pCur->iPage<BTCURSOR_MAX_DEPTH ); assert( pCur->apPage[pCur->iPage]->intKeyLeaf==1 ); getCellInfo(pCur); *pSize = pCur->info.nPayload; return SQLITE_OK; } /* |
︙ | ︙ | |||
57128 57129 57130 57131 57132 57133 57134 | pCur->curFlags &= ~(BTCF_ValidNKey|BTCF_ValidOvfl); if( pNewPage->nCell<1 || pNewPage->intKey!=pCur->apPage[i]->intKey ){ return SQLITE_CORRUPT_BKPT; } return SQLITE_OK; } | | > > | 57482 57483 57484 57485 57486 57487 57488 57489 57490 57491 57492 57493 57494 57495 57496 57497 57498 57499 57500 57501 57502 57503 57504 57505 57506 | pCur->curFlags &= ~(BTCF_ValidNKey|BTCF_ValidOvfl); if( pNewPage->nCell<1 || pNewPage->intKey!=pCur->apPage[i]->intKey ){ return SQLITE_CORRUPT_BKPT; } return SQLITE_OK; } #if SQLITE_DEBUG /* ** Page pParent is an internal (non-leaf) tree page. This function ** asserts that page number iChild is the left-child if the iIdx'th ** cell in page pParent. Or, if iIdx is equal to the total number of ** cells in pParent, that page number iChild is the right-child of ** the page. */ static void assertParentIndex(MemPage *pParent, int iIdx, Pgno iChild){ if( CORRUPT_DB ) return; /* The conditions tested below might not be true ** in a corrupt database */ assert( iIdx<=pParent->nCell ); if( iIdx==pParent->nCell ){ assert( get4byte(&pParent->aData[pParent->hdrOffset+8])==iChild ); }else{ assert( get4byte(findCell(pParent, iIdx))==iChild ); } } |
︙ | ︙ | |||
57161 57162 57163 57164 57165 57166 57167 | ** the largest cell index. */ static void moveToParent(BtCursor *pCur){ assert( cursorHoldsMutex(pCur) ); assert( pCur->eState==CURSOR_VALID ); assert( pCur->iPage>0 ); assert( pCur->apPage[pCur->iPage] ); | < < < < < < < < | 57517 57518 57519 57520 57521 57522 57523 57524 57525 57526 57527 57528 57529 57530 57531 57532 57533 57534 57535 | ** the largest cell index. */ static void moveToParent(BtCursor *pCur){ assert( cursorHoldsMutex(pCur) ); assert( pCur->eState==CURSOR_VALID ); assert( pCur->iPage>0 ); assert( pCur->apPage[pCur->iPage] ); assertParentIndex( pCur->apPage[pCur->iPage-1], pCur->aiIdx[pCur->iPage-1], pCur->apPage[pCur->iPage]->pgno ); testcase( pCur->aiIdx[pCur->iPage-1] > pCur->apPage[pCur->iPage-1]->nCell ); releasePage(pCur->apPage[pCur->iPage]); pCur->iPage--; pCur->info.nSize = 0; pCur->curFlags &= ~(BTCF_ValidNKey|BTCF_ValidOvfl); } |
︙ | ︙ | |||
60099 60100 60101 60102 60103 60104 60105 | ** different page). Once this subsequent call to balance_nonroot() ** has completed, it is safe to release the pSpace buffer used by ** the previous call, as the overflow cell data will have been ** copied either into the body of a database page or into the new ** pSpace buffer passed to the latter call to balance_nonroot(). */ u8 *pSpace = sqlite3PageMalloc(pCur->pBt->pageSize); | | > > | 60447 60448 60449 60450 60451 60452 60453 60454 60455 60456 60457 60458 60459 60460 60461 60462 60463 60464 60465 60466 60467 60468 60469 60470 60471 60472 60473 60474 60475 60476 60477 60478 60479 60480 60481 60482 60483 | ** different page). Once this subsequent call to balance_nonroot() ** has completed, it is safe to release the pSpace buffer used by ** the previous call, as the overflow cell data will have been ** copied either into the body of a database page or into the new ** pSpace buffer passed to the latter call to balance_nonroot(). */ u8 *pSpace = sqlite3PageMalloc(pCur->pBt->pageSize); rc = balance_nonroot(pParent, iIdx, pSpace, iPage==1, pCur->hints&BTREE_BULKLOAD); if( pFree ){ /* If pFree is not NULL, it points to the pSpace buffer used ** by a previous call to balance_nonroot(). Its contents are ** now stored either on real database pages or within the ** new pSpace buffer, so it may be safely freed here. */ sqlite3PageFree(pFree); } /* The pSpace buffer will be freed after the next call to ** balance_nonroot(), or just before this function returns, whichever ** comes first. */ pFree = pSpace; } } pPage->nOverflow = 0; /* The next iteration of the do-loop balances the parent page. */ releasePage(pPage); pCur->iPage--; assert( pCur->iPage>=0 ); } }while( rc==SQLITE_OK ); if( pFree ){ sqlite3PageFree(pFree); } return rc; |
︙ | ︙ | |||
60596 60597 60598 60599 60600 60601 60602 | int hdr; u16 szCell; assert( sqlite3_mutex_held(pBt->mutex) ); if( pgno>btreePagecount(pBt) ){ return SQLITE_CORRUPT_BKPT; } | < > > > > > | 60946 60947 60948 60949 60950 60951 60952 60953 60954 60955 60956 60957 60958 60959 60960 60961 60962 60963 60964 60965 60966 | int hdr; u16 szCell; assert( sqlite3_mutex_held(pBt->mutex) ); if( pgno>btreePagecount(pBt) ){ return SQLITE_CORRUPT_BKPT; } rc = getAndInitPage(pBt, pgno, &pPage, 0); if( rc ) return rc; if( pPage->bBusy ){ rc = SQLITE_CORRUPT_BKPT; goto cleardatabasepage_out; } pPage->bBusy = 1; hdr = pPage->hdrOffset; for(i=0; i<pPage->nCell; i++){ pCell = findCell(pPage, i); if( !pPage->leaf ){ rc = clearDatabasePage(pBt, get4byte(pCell), 1, pnChange); if( rc ) goto cleardatabasepage_out; } |
︙ | ︙ | |||
60623 60624 60625 60626 60627 60628 60629 60630 60631 60632 60633 60634 60635 60636 | if( freePageFlag ){ freePage(pPage, &rc); }else if( (rc = sqlite3PagerWrite(pPage->pDbPage))==0 ){ zeroPage(pPage, pPage->aData[hdr] | PTF_LEAF); } cleardatabasepage_out: releasePage(pPage); return rc; } /* ** Delete all information from a single table in the database. iTable is ** the page number of the root of the table. After this routine returns, | > | 60977 60978 60979 60980 60981 60982 60983 60984 60985 60986 60987 60988 60989 60990 60991 | if( freePageFlag ){ freePage(pPage, &rc); }else if( (rc = sqlite3PagerWrite(pPage->pDbPage))==0 ){ zeroPage(pPage, pPage->aData[hdr] | PTF_LEAF); } cleardatabasepage_out: pPage->bBusy = 0; releasePage(pPage); return rc; } /* ** Delete all information from a single table in the database. iTable is ** the page number of the root of the table. After this routine returns, |
︙ | ︙ | |||
61762 61763 61764 61765 61766 61767 61768 | } pBt->btsFlags &= ~BTS_NO_WAL; return rc; } /* | | < | > > > > > > > > > > | 62117 62118 62119 62120 62121 62122 62123 62124 62125 62126 62127 62128 62129 62130 62131 62132 62133 62134 62135 62136 62137 62138 62139 62140 62141 62142 62143 62144 62145 62146 | } pBt->btsFlags &= ~BTS_NO_WAL; return rc; } /* ** set the mask of hint flags for cursor pCsr. */ SQLITE_PRIVATE void sqlite3BtreeCursorHints(BtCursor *pCsr, unsigned int mask){ assert( mask==BTREE_BULKLOAD || mask==BTREE_SEEK_EQ || mask==0 ); pCsr->hints = mask; } #ifdef SQLITE_DEBUG /* ** Return true if the cursor has a hint specified. This routine is ** only used from within assert() statements */ SQLITE_PRIVATE int sqlite3BtreeCursorHasHint(BtCursor *pCsr, unsigned int mask){ return (pCsr->hints & mask)!=0; } #endif /* ** Return true if the given Btree is read-only. */ SQLITE_PRIVATE int sqlite3BtreeIsReadonly(Btree *p){ return (p->pBt->btsFlags & BTS_READ_ONLY)!=0; } |
︙ | ︙ | |||
61928 61929 61930 61931 61932 61933 61934 | ** Create an sqlite3_backup process to copy the contents of zSrcDb from ** connection handle pSrcDb to zDestDb in pDestDb. If successful, return ** a pointer to the new sqlite3_backup object. ** ** If an error occurs, NULL is returned and an error code and error message ** stored in database handle pDestDb. */ | | | 62292 62293 62294 62295 62296 62297 62298 62299 62300 62301 62302 62303 62304 62305 62306 | ** Create an sqlite3_backup process to copy the contents of zSrcDb from ** connection handle pSrcDb to zDestDb in pDestDb. If successful, return ** a pointer to the new sqlite3_backup object. ** ** If an error occurs, NULL is returned and an error code and error message ** stored in database handle pDestDb. */ SQLITE_API sqlite3_backup *SQLITE_STDCALL sqlite3_backup_init( sqlite3* pDestDb, /* Database to write to */ const char *zDestDb, /* Name of database within pDestDb */ sqlite3* pSrcDb, /* Database connection to read from */ const char *zSrcDb /* Name of database within pSrcDb */ ){ sqlite3_backup *p; /* Value to return */ |
︙ | ︙ | |||
62031 62032 62033 62034 62035 62036 62037 | const int nCopy = MIN(nSrcPgsz, nDestPgsz); const i64 iEnd = (i64)iSrcPg*(i64)nSrcPgsz; #ifdef SQLITE_HAS_CODEC /* Use BtreeGetReserveNoMutex() for the source b-tree, as although it is ** guaranteed that the shared-mutex is held by this thread, handle ** p->pSrc may not actually be the owner. */ int nSrcReserve = sqlite3BtreeGetReserveNoMutex(p->pSrc); | | | 62395 62396 62397 62398 62399 62400 62401 62402 62403 62404 62405 62406 62407 62408 62409 | const int nCopy = MIN(nSrcPgsz, nDestPgsz); const i64 iEnd = (i64)iSrcPg*(i64)nSrcPgsz; #ifdef SQLITE_HAS_CODEC /* Use BtreeGetReserveNoMutex() for the source b-tree, as although it is ** guaranteed that the shared-mutex is held by this thread, handle ** p->pSrc may not actually be the owner. */ int nSrcReserve = sqlite3BtreeGetReserveNoMutex(p->pSrc); int nDestReserve = sqlite3BtreeGetOptimalReserve(p->pDest); #endif int rc = SQLITE_OK; i64 iOff; assert( sqlite3BtreeGetReserveNoMutex(p->pSrc)>=0 ); assert( p->bDestLocked ); assert( !isFatalError(p->rc) ); |
︙ | ︙ | |||
62136 62137 62138 62139 62140 62141 62142 | *pp = p; p->isAttached = 1; } /* ** Copy nPage pages from the source b-tree to the destination. */ | | | 62500 62501 62502 62503 62504 62505 62506 62507 62508 62509 62510 62511 62512 62513 62514 | *pp = p; p->isAttached = 1; } /* ** Copy nPage pages from the source b-tree to the destination. */ SQLITE_API int SQLITE_STDCALL sqlite3_backup_step(sqlite3_backup *p, int nPage){ int rc; int destMode; /* Destination journal mode */ int pgszSrc = 0; /* Source page size */ int pgszDest = 0; /* Destination page size */ #ifdef SQLITE_ENABLE_API_ARMOR if( p==0 ) return SQLITE_MISUSE_BKPT; |
︙ | ︙ | |||
62381 62382 62383 62384 62385 62386 62387 | sqlite3_mutex_leave(p->pSrcDb->mutex); return rc; } /* ** Release all resources associated with an sqlite3_backup* handle. */ | | | 62745 62746 62747 62748 62749 62750 62751 62752 62753 62754 62755 62756 62757 62758 62759 | sqlite3_mutex_leave(p->pSrcDb->mutex); return rc; } /* ** Release all resources associated with an sqlite3_backup* handle. */ SQLITE_API int SQLITE_STDCALL sqlite3_backup_finish(sqlite3_backup *p){ sqlite3_backup **pp; /* Ptr to head of pagers backup list */ sqlite3 *pSrcDb; /* Source database connection */ int rc; /* Value to return */ /* Enter the mutexes */ if( p==0 ) return SQLITE_OK; pSrcDb = p->pSrcDb; |
︙ | ︙ | |||
62433 62434 62435 62436 62437 62438 62439 | return rc; } /* ** Return the number of pages still to be backed up as of the most recent ** call to sqlite3_backup_step(). */ | | | | 62797 62798 62799 62800 62801 62802 62803 62804 62805 62806 62807 62808 62809 62810 62811 62812 62813 62814 62815 62816 62817 62818 62819 62820 62821 62822 62823 62824 62825 | return rc; } /* ** Return the number of pages still to be backed up as of the most recent ** call to sqlite3_backup_step(). */ SQLITE_API int SQLITE_STDCALL sqlite3_backup_remaining(sqlite3_backup *p){ #ifdef SQLITE_ENABLE_API_ARMOR if( p==0 ){ (void)SQLITE_MISUSE_BKPT; return 0; } #endif return p->nRemaining; } /* ** Return the total number of pages in the source database as of the most ** recent call to sqlite3_backup_step(). */ SQLITE_API int SQLITE_STDCALL sqlite3_backup_pagecount(sqlite3_backup *p){ #ifdef SQLITE_ENABLE_API_ARMOR if( p==0 ){ (void)SQLITE_MISUSE_BKPT; return 0; } #endif return p->nPagecount; |
︙ | ︙ | |||
63662 63663 63664 63665 63666 63667 63668 | ** Allocate and return a pointer to a new sqlite3_value object. If ** the second argument to this function is NULL, the object is allocated ** by calling sqlite3ValueNew(). ** ** Otherwise, if the second argument is non-zero, then this function is ** being called indirectly by sqlite3Stat4ProbeSetValue(). If it has not ** already been allocated, allocate the UnpackedRecord structure that | | | 64026 64027 64028 64029 64030 64031 64032 64033 64034 64035 64036 64037 64038 64039 64040 | ** Allocate and return a pointer to a new sqlite3_value object. If ** the second argument to this function is NULL, the object is allocated ** by calling sqlite3ValueNew(). ** ** Otherwise, if the second argument is non-zero, then this function is ** being called indirectly by sqlite3Stat4ProbeSetValue(). If it has not ** already been allocated, allocate the UnpackedRecord structure that ** that function will return to its caller here. Then return a pointer to ** an sqlite3_value within the UnpackedRecord.a[] array. */ static sqlite3_value *valueNew(sqlite3 *db, struct ValueNewStat4Ctx *p){ #ifdef SQLITE_ENABLE_STAT3_OR_STAT4 if( p ){ UnpackedRecord *pRec = p->ppRec[0]; |
︙ | ︙ | |||
63706 63707 63708 63709 63710 63711 63712 63713 63714 63715 63716 63717 63718 63719 | } #else UNUSED_PARAMETER(p); #endif /* defined(SQLITE_ENABLE_STAT3_OR_STAT4) */ return sqlite3ValueNew(db); } /* ** Extract a value from the supplied expression in the manner described ** above sqlite3ValueFromExpr(). Allocate the sqlite3_value object ** using valueNew(). ** ** If pCtx is NULL and an error occurs after the sqlite3_value object ** has been allocated, it is freed before returning. Or, if pCtx is not | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 64070 64071 64072 64073 64074 64075 64076 64077 64078 64079 64080 64081 64082 64083 64084 64085 64086 64087 64088 64089 64090 64091 64092 64093 64094 64095 64096 64097 64098 64099 64100 64101 64102 64103 64104 64105 64106 64107 64108 64109 64110 64111 64112 64113 64114 64115 64116 64117 64118 64119 64120 64121 64122 64123 64124 64125 64126 64127 64128 64129 64130 64131 64132 64133 64134 64135 64136 64137 64138 64139 64140 64141 64142 64143 64144 64145 64146 64147 64148 64149 64150 64151 64152 64153 64154 64155 64156 64157 64158 64159 64160 64161 64162 64163 64164 64165 64166 64167 64168 64169 64170 64171 64172 64173 64174 64175 64176 64177 64178 64179 64180 64181 64182 64183 64184 64185 64186 64187 64188 64189 64190 | } #else UNUSED_PARAMETER(p); #endif /* defined(SQLITE_ENABLE_STAT3_OR_STAT4) */ return sqlite3ValueNew(db); } /* ** The expression object indicated by the second argument is guaranteed ** to be a scalar SQL function. If ** ** * all function arguments are SQL literals, ** * the SQLITE_FUNC_CONSTANT function flag is set, and ** * the SQLITE_FUNC_NEEDCOLL function flag is not set, ** ** then this routine attempts to invoke the SQL function. Assuming no ** error occurs, output parameter (*ppVal) is set to point to a value ** object containing the result before returning SQLITE_OK. ** ** Affinity aff is applied to the result of the function before returning. ** If the result is a text value, the sqlite3_value object uses encoding ** enc. ** ** If the conditions above are not met, this function returns SQLITE_OK ** and sets (*ppVal) to NULL. Or, if an error occurs, (*ppVal) is set to ** NULL and an SQLite error code returned. */ #ifdef SQLITE_ENABLE_STAT3_OR_STAT4 static int valueFromFunction( sqlite3 *db, /* The database connection */ Expr *p, /* The expression to evaluate */ u8 enc, /* Encoding to use */ u8 aff, /* Affinity to use */ sqlite3_value **ppVal, /* Write the new value here */ struct ValueNewStat4Ctx *pCtx /* Second argument for valueNew() */ ){ sqlite3_context ctx; /* Context object for function invocation */ sqlite3_value **apVal = 0; /* Function arguments */ int nVal = 0; /* Size of apVal[] array */ FuncDef *pFunc = 0; /* Function definition */ sqlite3_value *pVal = 0; /* New value */ int rc = SQLITE_OK; /* Return code */ int nName; /* Size of function name in bytes */ ExprList *pList = 0; /* Function arguments */ int i; /* Iterator variable */ assert( pCtx!=0 ); assert( (p->flags & EP_TokenOnly)==0 ); pList = p->x.pList; if( pList ) nVal = pList->nExpr; nName = sqlite3Strlen30(p->u.zToken); pFunc = sqlite3FindFunction(db, p->u.zToken, nName, nVal, enc, 0); assert( pFunc ); if( (pFunc->funcFlags & SQLITE_FUNC_CONSTANT)==0 || (pFunc->funcFlags & SQLITE_FUNC_NEEDCOLL) ){ return SQLITE_OK; } if( pList ){ apVal = (sqlite3_value**)sqlite3DbMallocZero(db, sizeof(apVal[0]) * nVal); if( apVal==0 ){ rc = SQLITE_NOMEM; goto value_from_function_out; } for(i=0; i<nVal; i++){ rc = sqlite3ValueFromExpr(db, pList->a[i].pExpr, enc, aff, &apVal[i]); if( apVal[i]==0 || rc!=SQLITE_OK ) goto value_from_function_out; } } pVal = valueNew(db, pCtx); if( pVal==0 ){ rc = SQLITE_NOMEM; goto value_from_function_out; } assert( pCtx->pParse->rc==SQLITE_OK ); memset(&ctx, 0, sizeof(ctx)); ctx.pOut = pVal; ctx.pFunc = pFunc; pFunc->xFunc(&ctx, nVal, apVal); if( ctx.isError ){ rc = ctx.isError; sqlite3ErrorMsg(pCtx->pParse, "%s", sqlite3_value_text(pVal)); }else{ sqlite3ValueApplyAffinity(pVal, aff, SQLITE_UTF8); assert( rc==SQLITE_OK ); rc = sqlite3VdbeChangeEncoding(pVal, enc); if( rc==SQLITE_OK && sqlite3VdbeMemTooBig(pVal) ){ rc = SQLITE_TOOBIG; pCtx->pParse->nErr++; } } pCtx->pParse->rc = rc; value_from_function_out: if( rc!=SQLITE_OK ){ pVal = 0; } if( apVal ){ for(i=0; i<nVal; i++){ sqlite3ValueFree(apVal[i]); } sqlite3DbFree(db, apVal); } *ppVal = pVal; return rc; } #else # define valueFromFunction(a,b,c,d,e,f) SQLITE_OK #endif /* defined(SQLITE_ENABLE_STAT3_OR_STAT4) */ /* ** Extract a value from the supplied expression in the manner described ** above sqlite3ValueFromExpr(). Allocate the sqlite3_value object ** using valueNew(). ** ** If pCtx is NULL and an error occurs after the sqlite3_value object ** has been allocated, it is freed before returning. Or, if pCtx is not |
︙ | ︙ | |||
63737 63738 63739 63740 63741 63742 63743 63744 63745 63746 63747 63748 63749 63750 | if( !pExpr ){ *ppVal = 0; return SQLITE_OK; } while( (op = pExpr->op)==TK_UPLUS ) pExpr = pExpr->pLeft; if( NEVER(op==TK_REGISTER) ) op = pExpr->op2; if( op==TK_CAST ){ u8 aff = sqlite3AffinityType(pExpr->u.zToken,0); rc = valueFromExpr(db, pExpr->pLeft, enc, aff, ppVal, pCtx); testcase( rc!=SQLITE_OK ); if( *ppVal ){ sqlite3VdbeMemCast(*ppVal, aff, SQLITE_UTF8); | > > > > > > | 64208 64209 64210 64211 64212 64213 64214 64215 64216 64217 64218 64219 64220 64221 64222 64223 64224 64225 64226 64227 | if( !pExpr ){ *ppVal = 0; return SQLITE_OK; } while( (op = pExpr->op)==TK_UPLUS ) pExpr = pExpr->pLeft; if( NEVER(op==TK_REGISTER) ) op = pExpr->op2; /* Compressed expressions only appear when parsing the DEFAULT clause ** on a table column definition, and hence only when pCtx==0. This ** check ensures that an EP_TokenOnly expression is never passed down ** into valueFromFunction(). */ assert( (pExpr->flags & EP_TokenOnly)==0 || pCtx==0 ); if( op==TK_CAST ){ u8 aff = sqlite3AffinityType(pExpr->u.zToken,0); rc = valueFromExpr(db, pExpr->pLeft, enc, aff, ppVal, pCtx); testcase( rc!=SQLITE_OK ); if( *ppVal ){ sqlite3VdbeMemCast(*ppVal, aff, SQLITE_UTF8); |
︙ | ︙ | |||
63813 63814 63815 63816 63817 63818 63819 63820 63821 63822 63823 63824 63825 63826 | zVal = &pExpr->u.zToken[2]; nVal = sqlite3Strlen30(zVal)-1; assert( zVal[nVal]=='\'' ); sqlite3VdbeMemSetStr(pVal, sqlite3HexToBlob(db, zVal, nVal), nVal/2, 0, SQLITE_DYNAMIC); } #endif *ppVal = pVal; return rc; no_mem: db->mallocFailed = 1; sqlite3DbFree(db, zVal); | > > > > > > | 64290 64291 64292 64293 64294 64295 64296 64297 64298 64299 64300 64301 64302 64303 64304 64305 64306 64307 64308 64309 | zVal = &pExpr->u.zToken[2]; nVal = sqlite3Strlen30(zVal)-1; assert( zVal[nVal]=='\'' ); sqlite3VdbeMemSetStr(pVal, sqlite3HexToBlob(db, zVal, nVal), nVal/2, 0, SQLITE_DYNAMIC); } #endif #ifdef SQLITE_ENABLE_STAT3_OR_STAT4 else if( op==TK_FUNCTION && pCtx!=0 ){ rc = valueFromFunction(db, pExpr, enc, affinity, &pVal, pCtx); } #endif *ppVal = pVal; return rc; no_mem: db->mallocFailed = 1; sqlite3DbFree(db, zVal); |
︙ | ︙ | |||
64203 64204 64205 64206 64207 64208 64209 | p->zSql = sqlite3DbStrNDup(p->db, z, n); p->isPrepareV2 = (u8)isPrepareV2; } /* ** Return the SQL associated with a prepared statement */ | | | 64686 64687 64688 64689 64690 64691 64692 64693 64694 64695 64696 64697 64698 64699 64700 | p->zSql = sqlite3DbStrNDup(p->db, z, n); p->isPrepareV2 = (u8)isPrepareV2; } /* ** Return the SQL associated with a prepared statement */ SQLITE_API const char *SQLITE_STDCALL sqlite3_sql(sqlite3_stmt *pStmt){ Vdbe *p = (Vdbe *)pStmt; return (p && p->isPrepareV2) ? p->zSql : 0; } /* ** Swap all content between two VDBE structures. */ |
︙ | ︙ | |||
65266 65267 65268 65269 65270 65271 65272 | zP4 = "(blob)"; } break; } #ifndef SQLITE_OMIT_VIRTUALTABLE case P4_VTAB: { sqlite3_vtab *pVtab = pOp->p4.pVtab->pVtab; | | | 65749 65750 65751 65752 65753 65754 65755 65756 65757 65758 65759 65760 65761 65762 65763 | zP4 = "(blob)"; } break; } #ifndef SQLITE_OMIT_VIRTUALTABLE case P4_VTAB: { sqlite3_vtab *pVtab = pOp->p4.pVtab->pVtab; sqlite3_snprintf(nTemp, zTemp, "vtab:%p", pVtab); break; } #endif case P4_INTARRAY: { sqlite3_snprintf(nTemp, zTemp, "intarray"); break; } |
︙ | ︙ | |||
65930 65931 65932 65933 65934 65935 65936 | }else if( pCx->pCursor ){ sqlite3BtreeCloseCursor(pCx->pCursor); } #ifndef SQLITE_OMIT_VIRTUALTABLE else if( pCx->pVtabCursor ){ sqlite3_vtab_cursor *pVtabCursor = pCx->pVtabCursor; const sqlite3_module *pModule = pVtabCursor->pVtab->pModule; | > | < | 66413 66414 66415 66416 66417 66418 66419 66420 66421 66422 66423 66424 66425 66426 66427 66428 66429 | }else if( pCx->pCursor ){ sqlite3BtreeCloseCursor(pCx->pCursor); } #ifndef SQLITE_OMIT_VIRTUALTABLE else if( pCx->pVtabCursor ){ sqlite3_vtab_cursor *pVtabCursor = pCx->pVtabCursor; const sqlite3_module *pModule = pVtabCursor->pVtab->pModule; assert( pVtabCursor->pVtab->nRef>0 ); pVtabCursor->pVtab->nRef--; pModule->xClose(pVtabCursor); } #endif } /* ** Copy the values stored in the VdbeFrame structure to its Vdbe. This ** is used, for example, when a trigger sub-program is halted to restore |
︙ | ︙ | |||
66291 66292 66293 66294 66295 66296 66297 | return rc; } /* Delete the master journal file. This commits the transaction. After ** doing this the directory is synced again before any individual ** transaction files are deleted. */ | | | 66774 66775 66776 66777 66778 66779 66780 66781 66782 66783 66784 66785 66786 66787 66788 | return rc; } /* Delete the master journal file. This commits the transaction. After ** doing this the directory is synced again before any individual ** transaction files are deleted. */ rc = sqlite3OsDelete(pVfs, zMaster, needSync); sqlite3DbFree(db, zMaster); zMaster = 0; if( rc ){ return rc; } /* All files and directories have already been synced, so the following |
︙ | ︙ | |||
67521 67522 67523 67524 67525 67526 67527 | u32 szHdr; u32 idx; u32 notUsed; const unsigned char *aKey = (const unsigned char*)pKey; if( CORRUPT_DB ) return; idx = getVarint32(aKey, szHdr); | > | | 68004 68005 68006 68007 68008 68009 68010 68011 68012 68013 68014 68015 68016 68017 68018 68019 | u32 szHdr; u32 idx; u32 notUsed; const unsigned char *aKey = (const unsigned char*)pKey; if( CORRUPT_DB ) return; idx = getVarint32(aKey, szHdr); assert( nKey>=0 ); assert( szHdr<=(u32)nKey ); while( idx<szHdr ){ idx += getVarint32(aKey+idx, notUsed); nField++; } assert( nField <= pKeyInfo->nField+pKeyInfo->nXField ); } #else |
︙ | ︙ | |||
68358 68359 68360 68361 68362 68363 68364 | ** Return TRUE (non-zero) of the statement supplied as an argument needs ** to be recompiled. A statement needs to be recompiled whenever the ** execution environment changes in a way that would alter the program ** that sqlite3_prepare() generates. For example, if new functions or ** collating sequences are registered or if an authorizer function is ** added or changed. */ | | | 68842 68843 68844 68845 68846 68847 68848 68849 68850 68851 68852 68853 68854 68855 68856 | ** Return TRUE (non-zero) of the statement supplied as an argument needs ** to be recompiled. A statement needs to be recompiled whenever the ** execution environment changes in a way that would alter the program ** that sqlite3_prepare() generates. For example, if new functions or ** collating sequences are registered or if an authorizer function is ** added or changed. */ SQLITE_API int SQLITE_STDCALL sqlite3_expired(sqlite3_stmt *pStmt){ Vdbe *p = (Vdbe*)pStmt; return p==0 || p->expired; } #endif /* ** Check on a Vdbe to make sure it has not been finalized. Log |
︙ | ︙ | |||
68395 68396 68397 68398 68399 68400 68401 | ** the sqlite3_compile() routine. The integer returned is an SQLITE_ ** success/failure code that describes the result of executing the virtual ** machine. ** ** This routine sets the error code and string returned by ** sqlite3_errcode(), sqlite3_errmsg() and sqlite3_errmsg16(). */ | | | 68879 68880 68881 68882 68883 68884 68885 68886 68887 68888 68889 68890 68891 68892 68893 | ** the sqlite3_compile() routine. The integer returned is an SQLITE_ ** success/failure code that describes the result of executing the virtual ** machine. ** ** This routine sets the error code and string returned by ** sqlite3_errcode(), sqlite3_errmsg() and sqlite3_errmsg16(). */ SQLITE_API int SQLITE_STDCALL sqlite3_finalize(sqlite3_stmt *pStmt){ int rc; if( pStmt==0 ){ /* IMPLEMENTATION-OF: R-57228-12904 Invoking sqlite3_finalize() on a NULL ** pointer is a harmless no-op. */ rc = SQLITE_OK; }else{ Vdbe *v = (Vdbe*)pStmt; |
︙ | ︙ | |||
68421 68422 68423 68424 68425 68426 68427 | ** Terminate the current execution of an SQL statement and reset it ** back to its starting state so that it can be reused. A success code from ** the prior execution is returned. ** ** This routine sets the error code and string returned by ** sqlite3_errcode(), sqlite3_errmsg() and sqlite3_errmsg16(). */ | | | | 68905 68906 68907 68908 68909 68910 68911 68912 68913 68914 68915 68916 68917 68918 68919 68920 68921 68922 68923 68924 68925 68926 68927 68928 68929 68930 68931 68932 68933 68934 68935 68936 68937 68938 | ** Terminate the current execution of an SQL statement and reset it ** back to its starting state so that it can be reused. A success code from ** the prior execution is returned. ** ** This routine sets the error code and string returned by ** sqlite3_errcode(), sqlite3_errmsg() and sqlite3_errmsg16(). */ SQLITE_API int SQLITE_STDCALL sqlite3_reset(sqlite3_stmt *pStmt){ int rc; if( pStmt==0 ){ rc = SQLITE_OK; }else{ Vdbe *v = (Vdbe*)pStmt; sqlite3_mutex_enter(v->db->mutex); rc = sqlite3VdbeReset(v); sqlite3VdbeRewind(v); assert( (rc & (v->db->errMask))==rc ); rc = sqlite3ApiExit(v->db, rc); sqlite3_mutex_leave(v->db->mutex); } return rc; } /* ** Set all the parameters in the compiled SQL statement to NULL. */ SQLITE_API int SQLITE_STDCALL sqlite3_clear_bindings(sqlite3_stmt *pStmt){ int i; int rc = SQLITE_OK; Vdbe *p = (Vdbe*)pStmt; #if SQLITE_THREADSAFE sqlite3_mutex *mutex = ((Vdbe*)pStmt)->db->mutex; #endif sqlite3_mutex_enter(mutex); |
︙ | ︙ | |||
68464 68465 68466 68467 68468 68469 68470 | } /**************************** sqlite3_value_ ******************************* ** The following routines extract information from a Mem or sqlite3_value ** structure. */ | | | | | | | | | | | > > > > | | 68948 68949 68950 68951 68952 68953 68954 68955 68956 68957 68958 68959 68960 68961 68962 68963 68964 68965 68966 68967 68968 68969 68970 68971 68972 68973 68974 68975 68976 68977 68978 68979 68980 68981 68982 68983 68984 68985 68986 68987 68988 68989 68990 68991 68992 68993 68994 68995 68996 68997 68998 68999 69000 69001 69002 69003 69004 69005 | } /**************************** sqlite3_value_ ******************************* ** The following routines extract information from a Mem or sqlite3_value ** structure. */ SQLITE_API const void *SQLITE_STDCALL sqlite3_value_blob(sqlite3_value *pVal){ Mem *p = (Mem*)pVal; if( p->flags & (MEM_Blob|MEM_Str) ){ sqlite3VdbeMemExpandBlob(p); p->flags |= MEM_Blob; return p->n ? p->z : 0; }else{ return sqlite3_value_text(pVal); } } SQLITE_API int SQLITE_STDCALL sqlite3_value_bytes(sqlite3_value *pVal){ return sqlite3ValueBytes(pVal, SQLITE_UTF8); } SQLITE_API int SQLITE_STDCALL sqlite3_value_bytes16(sqlite3_value *pVal){ return sqlite3ValueBytes(pVal, SQLITE_UTF16NATIVE); } SQLITE_API double SQLITE_STDCALL sqlite3_value_double(sqlite3_value *pVal){ return sqlite3VdbeRealValue((Mem*)pVal); } SQLITE_API int SQLITE_STDCALL sqlite3_value_int(sqlite3_value *pVal){ return (int)sqlite3VdbeIntValue((Mem*)pVal); } SQLITE_API sqlite_int64 SQLITE_STDCALL sqlite3_value_int64(sqlite3_value *pVal){ return sqlite3VdbeIntValue((Mem*)pVal); } SQLITE_API const unsigned char *SQLITE_STDCALL sqlite3_value_text(sqlite3_value *pVal){ return (const unsigned char *)sqlite3ValueText(pVal, SQLITE_UTF8); } #ifndef SQLITE_OMIT_UTF16 SQLITE_API const void *SQLITE_STDCALL sqlite3_value_text16(sqlite3_value* pVal){ return sqlite3ValueText(pVal, SQLITE_UTF16NATIVE); } SQLITE_API const void *SQLITE_STDCALL sqlite3_value_text16be(sqlite3_value *pVal){ return sqlite3ValueText(pVal, SQLITE_UTF16BE); } SQLITE_API const void *SQLITE_STDCALL sqlite3_value_text16le(sqlite3_value *pVal){ return sqlite3ValueText(pVal, SQLITE_UTF16LE); } #endif /* SQLITE_OMIT_UTF16 */ /* EVIDENCE-OF: R-12793-43283 Every value in SQLite has one of five ** fundamental datatypes: 64-bit signed integer 64-bit IEEE floating ** point number string BLOB NULL */ SQLITE_API int SQLITE_STDCALL sqlite3_value_type(sqlite3_value* pVal){ static const u8 aType[] = { SQLITE_BLOB, /* 0x00 */ SQLITE_NULL, /* 0x01 */ SQLITE_TEXT, /* 0x02 */ SQLITE_NULL, /* 0x03 */ SQLITE_INTEGER, /* 0x04 */ SQLITE_NULL, /* 0x05 */ |
︙ | ︙ | |||
68579 68580 68581 68582 68583 68584 68585 | /* noop */ }else{ xDel((void*)p); } if( pCtx ) sqlite3_result_error_toobig(pCtx); return SQLITE_TOOBIG; } | | | | | | | | | | | | | | | | | > > > | | | 69067 69068 69069 69070 69071 69072 69073 69074 69075 69076 69077 69078 69079 69080 69081 69082 69083 69084 69085 69086 69087 69088 69089 69090 69091 69092 69093 69094 69095 69096 69097 69098 69099 69100 69101 69102 69103 69104 69105 69106 69107 69108 69109 69110 69111 69112 69113 69114 69115 69116 69117 69118 69119 69120 69121 69122 69123 69124 69125 69126 69127 69128 69129 69130 69131 69132 69133 69134 69135 69136 69137 69138 69139 69140 69141 69142 69143 69144 69145 69146 69147 69148 69149 69150 69151 69152 69153 69154 69155 69156 69157 69158 69159 69160 69161 69162 69163 69164 69165 69166 69167 69168 69169 69170 69171 69172 69173 69174 69175 69176 69177 69178 69179 69180 69181 69182 69183 69184 69185 69186 69187 69188 69189 69190 69191 69192 69193 69194 69195 69196 69197 69198 69199 69200 69201 69202 69203 69204 69205 69206 69207 69208 69209 69210 69211 69212 69213 69214 69215 69216 69217 69218 69219 | /* noop */ }else{ xDel((void*)p); } if( pCtx ) sqlite3_result_error_toobig(pCtx); return SQLITE_TOOBIG; } SQLITE_API void SQLITE_STDCALL sqlite3_result_blob( sqlite3_context *pCtx, const void *z, int n, void (*xDel)(void *) ){ assert( n>=0 ); assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); setResultStrOrError(pCtx, z, n, 0, xDel); } SQLITE_API void SQLITE_STDCALL sqlite3_result_blob64( sqlite3_context *pCtx, const void *z, sqlite3_uint64 n, void (*xDel)(void *) ){ assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); assert( xDel!=SQLITE_DYNAMIC ); if( n>0x7fffffff ){ (void)invokeValueDestructor(z, xDel, pCtx); }else{ setResultStrOrError(pCtx, z, (int)n, 0, xDel); } } SQLITE_API void SQLITE_STDCALL sqlite3_result_double(sqlite3_context *pCtx, double rVal){ assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); sqlite3VdbeMemSetDouble(pCtx->pOut, rVal); } SQLITE_API void SQLITE_STDCALL sqlite3_result_error(sqlite3_context *pCtx, const char *z, int n){ assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); pCtx->isError = SQLITE_ERROR; pCtx->fErrorOrAux = 1; sqlite3VdbeMemSetStr(pCtx->pOut, z, n, SQLITE_UTF8, SQLITE_TRANSIENT); } #ifndef SQLITE_OMIT_UTF16 SQLITE_API void SQLITE_STDCALL sqlite3_result_error16(sqlite3_context *pCtx, const void *z, int n){ assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); pCtx->isError = SQLITE_ERROR; pCtx->fErrorOrAux = 1; sqlite3VdbeMemSetStr(pCtx->pOut, z, n, SQLITE_UTF16NATIVE, SQLITE_TRANSIENT); } #endif SQLITE_API void SQLITE_STDCALL sqlite3_result_int(sqlite3_context *pCtx, int iVal){ assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); sqlite3VdbeMemSetInt64(pCtx->pOut, (i64)iVal); } SQLITE_API void SQLITE_STDCALL sqlite3_result_int64(sqlite3_context *pCtx, i64 iVal){ assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); sqlite3VdbeMemSetInt64(pCtx->pOut, iVal); } SQLITE_API void SQLITE_STDCALL sqlite3_result_null(sqlite3_context *pCtx){ assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); sqlite3VdbeMemSetNull(pCtx->pOut); } SQLITE_API void SQLITE_STDCALL sqlite3_result_text( sqlite3_context *pCtx, const char *z, int n, void (*xDel)(void *) ){ assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); setResultStrOrError(pCtx, z, n, SQLITE_UTF8, xDel); } SQLITE_API void SQLITE_STDCALL sqlite3_result_text64( sqlite3_context *pCtx, const char *z, sqlite3_uint64 n, void (*xDel)(void *), unsigned char enc ){ assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); assert( xDel!=SQLITE_DYNAMIC ); if( enc==SQLITE_UTF16 ) enc = SQLITE_UTF16NATIVE; if( n>0x7fffffff ){ (void)invokeValueDestructor(z, xDel, pCtx); }else{ setResultStrOrError(pCtx, z, (int)n, enc, xDel); } } #ifndef SQLITE_OMIT_UTF16 SQLITE_API void SQLITE_STDCALL sqlite3_result_text16( sqlite3_context *pCtx, const void *z, int n, void (*xDel)(void *) ){ assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); setResultStrOrError(pCtx, z, n, SQLITE_UTF16NATIVE, xDel); } SQLITE_API void SQLITE_STDCALL sqlite3_result_text16be( sqlite3_context *pCtx, const void *z, int n, void (*xDel)(void *) ){ assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); setResultStrOrError(pCtx, z, n, SQLITE_UTF16BE, xDel); } SQLITE_API void SQLITE_STDCALL sqlite3_result_text16le( sqlite3_context *pCtx, const void *z, int n, void (*xDel)(void *) ){ assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); setResultStrOrError(pCtx, z, n, SQLITE_UTF16LE, xDel); } #endif /* SQLITE_OMIT_UTF16 */ SQLITE_API void SQLITE_STDCALL sqlite3_result_value(sqlite3_context *pCtx, sqlite3_value *pValue){ assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); sqlite3VdbeMemCopy(pCtx->pOut, pValue); } SQLITE_API void SQLITE_STDCALL sqlite3_result_zeroblob(sqlite3_context *pCtx, int n){ assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); sqlite3VdbeMemSetZeroBlob(pCtx->pOut, n); } SQLITE_API void SQLITE_STDCALL sqlite3_result_error_code(sqlite3_context *pCtx, int errCode){ pCtx->isError = errCode; pCtx->fErrorOrAux = 1; #ifdef SQLITE_DEBUG if( pCtx->pVdbe ) pCtx->pVdbe->rcApp = errCode; #endif if( pCtx->pOut->flags & MEM_Null ){ sqlite3VdbeMemSetStr(pCtx->pOut, sqlite3ErrStr(errCode), -1, SQLITE_UTF8, SQLITE_STATIC); } } /* Force an SQLITE_TOOBIG error. */ SQLITE_API void SQLITE_STDCALL sqlite3_result_error_toobig(sqlite3_context *pCtx){ assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); pCtx->isError = SQLITE_TOOBIG; pCtx->fErrorOrAux = 1; sqlite3VdbeMemSetStr(pCtx->pOut, "string or blob too big", -1, SQLITE_UTF8, SQLITE_STATIC); } /* An SQLITE_NOMEM error. */ SQLITE_API void SQLITE_STDCALL sqlite3_result_error_nomem(sqlite3_context *pCtx){ assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); sqlite3VdbeMemSetNull(pCtx->pOut); pCtx->isError = SQLITE_NOMEM; pCtx->fErrorOrAux = 1; pCtx->pOut->db->mallocFailed = 1; } |
︙ | ︙ | |||
68778 68779 68780 68781 68782 68783 68784 | ** returns, and those were broken by the automatic-reset change. As a ** a work-around, the SQLITE_OMIT_AUTORESET compile-time restores the ** legacy behavior of returning SQLITE_MISUSE for cases where the ** previous sqlite3_step() returned something other than a SQLITE_LOCKED ** or SQLITE_BUSY error. */ #ifdef SQLITE_OMIT_AUTORESET | | | 69269 69270 69271 69272 69273 69274 69275 69276 69277 69278 69279 69280 69281 69282 69283 | ** returns, and those were broken by the automatic-reset change. As a ** a work-around, the SQLITE_OMIT_AUTORESET compile-time restores the ** legacy behavior of returning SQLITE_MISUSE for cases where the ** previous sqlite3_step() returned something other than a SQLITE_LOCKED ** or SQLITE_BUSY error. */ #ifdef SQLITE_OMIT_AUTORESET if( (rc = p->rc&0xff)==SQLITE_BUSY || rc==SQLITE_LOCKED ){ sqlite3_reset((sqlite3_stmt*)p); }else{ return SQLITE_MISUSE_BKPT; } #else sqlite3_reset((sqlite3_stmt*)p); #endif |
︙ | ︙ | |||
68824 68825 68826 68827 68828 68829 68830 68831 68832 68833 68834 68835 68836 68837 | #endif db->nVdbeActive++; if( p->readOnly==0 ) db->nVdbeWrite++; if( p->bIsReader ) db->nVdbeRead++; p->pc = 0; } #ifndef SQLITE_OMIT_EXPLAIN if( p->explain ){ rc = sqlite3VdbeList(p); }else #endif /* SQLITE_OMIT_EXPLAIN */ { db->nVdbeExec++; | > > > | 69315 69316 69317 69318 69319 69320 69321 69322 69323 69324 69325 69326 69327 69328 69329 69330 69331 | #endif db->nVdbeActive++; if( p->readOnly==0 ) db->nVdbeWrite++; if( p->bIsReader ) db->nVdbeRead++; p->pc = 0; } #ifdef SQLITE_DEBUG p->rcApp = SQLITE_OK; #endif #ifndef SQLITE_OMIT_EXPLAIN if( p->explain ){ rc = sqlite3VdbeList(p); }else #endif /* SQLITE_OMIT_EXPLAIN */ { db->nVdbeExec++; |
︙ | ︙ | |||
68868 68869 68870 68871 68872 68873 68874 | ** be one of the values in the first assert() below. Variable p->rc ** contains the value that would be returned if sqlite3_finalize() ** were called on statement p. */ assert( rc==SQLITE_ROW || rc==SQLITE_DONE || rc==SQLITE_ERROR || rc==SQLITE_BUSY || rc==SQLITE_MISUSE ); | | | | 69362 69363 69364 69365 69366 69367 69368 69369 69370 69371 69372 69373 69374 69375 69376 69377 69378 69379 69380 69381 69382 69383 69384 69385 69386 69387 69388 69389 69390 69391 69392 | ** be one of the values in the first assert() below. Variable p->rc ** contains the value that would be returned if sqlite3_finalize() ** were called on statement p. */ assert( rc==SQLITE_ROW || rc==SQLITE_DONE || rc==SQLITE_ERROR || rc==SQLITE_BUSY || rc==SQLITE_MISUSE ); assert( (p->rc!=SQLITE_ROW && p->rc!=SQLITE_DONE) || p->rc==p->rcApp ); if( p->isPrepareV2 && rc!=SQLITE_ROW && rc!=SQLITE_DONE ){ /* If this statement was prepared using sqlite3_prepare_v2(), and an ** error has occurred, then return the error code in p->rc to the ** caller. Set the error code in the database handle to the same value. */ rc = sqlite3VdbeTransferError(p); } return (rc&db->errMask); } /* ** This is the top-level implementation of sqlite3_step(). Call ** sqlite3Step() to do most of the work. If a schema error occurs, ** call sqlite3Reprepare() and try again. */ SQLITE_API int SQLITE_STDCALL sqlite3_step(sqlite3_stmt *pStmt){ int rc = SQLITE_OK; /* Result from sqlite3Step() */ int rc2 = SQLITE_OK; /* Result from sqlite3Reprepare() */ Vdbe *v = (Vdbe*)pStmt; /* the prepared statement */ int cnt = 0; /* Counter to prevent infinite loop of reprepares */ sqlite3 *db; /* The database connection */ if( vdbeSafetyNotNull(v) ){ |
︙ | ︙ | |||
68935 68936 68937 68938 68939 68940 68941 | } /* ** Extract the user data from a sqlite3_context structure and return a ** pointer to it. */ | | | | > > > > < > > > > > > > | | | | | 69429 69430 69431 69432 69433 69434 69435 69436 69437 69438 69439 69440 69441 69442 69443 69444 69445 69446 69447 69448 69449 69450 69451 69452 69453 69454 69455 69456 69457 69458 69459 69460 69461 69462 69463 69464 69465 69466 69467 69468 69469 69470 69471 69472 69473 69474 69475 69476 69477 69478 69479 69480 69481 69482 69483 | } /* ** Extract the user data from a sqlite3_context structure and return a ** pointer to it. */ SQLITE_API void *SQLITE_STDCALL sqlite3_user_data(sqlite3_context *p){ assert( p && p->pFunc ); return p->pFunc->pUserData; } /* ** Extract the user data from a sqlite3_context structure and return a ** pointer to it. ** ** IMPLEMENTATION-OF: R-46798-50301 The sqlite3_context_db_handle() interface ** returns a copy of the pointer to the database connection (the 1st ** parameter) of the sqlite3_create_function() and ** sqlite3_create_function16() routines that originally registered the ** application defined function. */ SQLITE_API sqlite3 *SQLITE_STDCALL sqlite3_context_db_handle(sqlite3_context *p){ assert( p && p->pFunc ); return p->pOut->db; } /* ** Return the current time for a statement. If the current time ** is requested more than once within the same run of a single prepared ** statement, the exact same time is returned for each invocation regardless ** of the amount of time that elapses between invocations. In other words, ** the time returned is always the time of the first call. */ SQLITE_PRIVATE sqlite3_int64 sqlite3StmtCurrentTime(sqlite3_context *p){ int rc; #ifndef SQLITE_ENABLE_STAT3_OR_STAT4 sqlite3_int64 *piTime = &p->pVdbe->iCurrentTime; assert( p->pVdbe!=0 ); #else sqlite3_int64 iTime = 0; sqlite3_int64 *piTime = p->pVdbe!=0 ? &p->pVdbe->iCurrentTime : &iTime; #endif if( *piTime==0 ){ rc = sqlite3OsCurrentTimeInt64(p->pOut->db->pVfs, piTime); if( rc ) *piTime = 0; } return *piTime; } /* ** The following is the implementation of an SQL function that always ** fails with an error message stating that the function is used in the ** wrong context. The sqlite3_overload_function() API might construct ** SQL function that use this routine so that the functions will exist |
︙ | ︙ | |||
69016 69017 69018 69019 69020 69021 69022 | } /* ** Allocate or return the aggregate context for a user function. A new ** context is allocated on the first call. Subsequent calls return the ** same context that was returned on prior calls. */ | | | > > > > > | > > > > > | 69520 69521 69522 69523 69524 69525 69526 69527 69528 69529 69530 69531 69532 69533 69534 69535 69536 69537 69538 69539 69540 69541 69542 69543 69544 69545 69546 69547 69548 69549 69550 69551 69552 69553 69554 69555 69556 69557 69558 69559 69560 69561 69562 69563 69564 69565 69566 69567 69568 69569 69570 69571 69572 69573 69574 69575 69576 69577 69578 69579 69580 69581 69582 69583 69584 69585 | } /* ** Allocate or return the aggregate context for a user function. A new ** context is allocated on the first call. Subsequent calls return the ** same context that was returned on prior calls. */ SQLITE_API void *SQLITE_STDCALL sqlite3_aggregate_context(sqlite3_context *p, int nByte){ assert( p && p->pFunc && p->pFunc->xStep ); assert( sqlite3_mutex_held(p->pOut->db->mutex) ); testcase( nByte<0 ); if( (p->pMem->flags & MEM_Agg)==0 ){ return createAggContext(p, nByte); }else{ return (void*)p->pMem->z; } } /* ** Return the auxiliary data pointer, if any, for the iArg'th argument to ** the user-function defined by pCtx. */ SQLITE_API void *SQLITE_STDCALL sqlite3_get_auxdata(sqlite3_context *pCtx, int iArg){ AuxData *pAuxData; assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); #if SQLITE_ENABLE_STAT3_OR_STAT4 if( pCtx->pVdbe==0 ) return 0; #else assert( pCtx->pVdbe!=0 ); #endif for(pAuxData=pCtx->pVdbe->pAuxData; pAuxData; pAuxData=pAuxData->pNext){ if( pAuxData->iOp==pCtx->iOp && pAuxData->iArg==iArg ) break; } return (pAuxData ? pAuxData->pAux : 0); } /* ** Set the auxiliary data pointer and delete function, for the iArg'th ** argument to the user-function defined by pCtx. Any previous value is ** deleted by calling the delete function specified when it was set. */ SQLITE_API void SQLITE_STDCALL sqlite3_set_auxdata( sqlite3_context *pCtx, int iArg, void *pAux, void (*xDelete)(void*) ){ AuxData *pAuxData; Vdbe *pVdbe = pCtx->pVdbe; assert( sqlite3_mutex_held(pCtx->pOut->db->mutex) ); if( iArg<0 ) goto failed; #ifdef SQLITE_ENABLE_STAT3_OR_STAT4 if( pVdbe==0 ) goto failed; #else assert( pVdbe!=0 ); #endif for(pAuxData=pVdbe->pAuxData; pAuxData; pAuxData=pAuxData->pNext){ if( pAuxData->iOp==pCtx->iOp && pAuxData->iArg==iArg ) break; } if( pAuxData==0 ){ pAuxData = sqlite3DbMallocZero(pVdbe->db, sizeof(AuxData)); if( !pAuxData ) goto failed; |
︙ | ︙ | |||
69097 69098 69099 69100 69101 69102 69103 | ** called. ** ** This function is deprecated. Do not use it for new code. It is ** provide only to avoid breaking legacy code. New aggregate function ** implementations should keep their own counts within their aggregate ** context. */ | | | | | 69611 69612 69613 69614 69615 69616 69617 69618 69619 69620 69621 69622 69623 69624 69625 69626 69627 69628 69629 69630 69631 69632 69633 69634 69635 69636 69637 69638 69639 69640 69641 69642 69643 | ** called. ** ** This function is deprecated. Do not use it for new code. It is ** provide only to avoid breaking legacy code. New aggregate function ** implementations should keep their own counts within their aggregate ** context. */ SQLITE_API int SQLITE_STDCALL sqlite3_aggregate_count(sqlite3_context *p){ assert( p && p->pMem && p->pFunc && p->pFunc->xStep ); return p->pMem->n; } #endif /* ** Return the number of columns in the result set for the statement pStmt. */ SQLITE_API int SQLITE_STDCALL sqlite3_column_count(sqlite3_stmt *pStmt){ Vdbe *pVm = (Vdbe *)pStmt; return pVm ? pVm->nResColumn : 0; } /* ** Return the number of values available from the current row of the ** currently executing statement pStmt. */ SQLITE_API int SQLITE_STDCALL sqlite3_data_count(sqlite3_stmt *pStmt){ Vdbe *pVm = (Vdbe *)pStmt; if( pVm==0 || pVm->pResultSet==0 ) return 0; return pVm->nResColumn; } /* ** Return a pointer to static memory containing an SQL NULL value. |
︙ | ︙ | |||
69217 69218 69219 69220 69221 69222 69223 | } } /**************************** sqlite3_column_ ******************************* ** The following routines are used to access elements of the current row ** in the result set. */ | | | | | | | | | | | | 69731 69732 69733 69734 69735 69736 69737 69738 69739 69740 69741 69742 69743 69744 69745 69746 69747 69748 69749 69750 69751 69752 69753 69754 69755 69756 69757 69758 69759 69760 69761 69762 69763 69764 69765 69766 69767 69768 69769 69770 69771 69772 69773 69774 69775 69776 69777 69778 69779 69780 69781 69782 69783 69784 69785 69786 69787 69788 69789 69790 69791 69792 69793 69794 69795 69796 69797 69798 69799 69800 69801 | } } /**************************** sqlite3_column_ ******************************* ** The following routines are used to access elements of the current row ** in the result set. */ SQLITE_API const void *SQLITE_STDCALL sqlite3_column_blob(sqlite3_stmt *pStmt, int i){ const void *val; val = sqlite3_value_blob( columnMem(pStmt,i) ); /* Even though there is no encoding conversion, value_blob() might ** need to call malloc() to expand the result of a zeroblob() ** expression. */ columnMallocFailure(pStmt); return val; } SQLITE_API int SQLITE_STDCALL sqlite3_column_bytes(sqlite3_stmt *pStmt, int i){ int val = sqlite3_value_bytes( columnMem(pStmt,i) ); columnMallocFailure(pStmt); return val; } SQLITE_API int SQLITE_STDCALL sqlite3_column_bytes16(sqlite3_stmt *pStmt, int i){ int val = sqlite3_value_bytes16( columnMem(pStmt,i) ); columnMallocFailure(pStmt); return val; } SQLITE_API double SQLITE_STDCALL sqlite3_column_double(sqlite3_stmt *pStmt, int i){ double val = sqlite3_value_double( columnMem(pStmt,i) ); columnMallocFailure(pStmt); return val; } SQLITE_API int SQLITE_STDCALL sqlite3_column_int(sqlite3_stmt *pStmt, int i){ int val = sqlite3_value_int( columnMem(pStmt,i) ); columnMallocFailure(pStmt); return val; } SQLITE_API sqlite_int64 SQLITE_STDCALL sqlite3_column_int64(sqlite3_stmt *pStmt, int i){ sqlite_int64 val = sqlite3_value_int64( columnMem(pStmt,i) ); columnMallocFailure(pStmt); return val; } SQLITE_API const unsigned char *SQLITE_STDCALL sqlite3_column_text(sqlite3_stmt *pStmt, int i){ const unsigned char *val = sqlite3_value_text( columnMem(pStmt,i) ); columnMallocFailure(pStmt); return val; } SQLITE_API sqlite3_value *SQLITE_STDCALL sqlite3_column_value(sqlite3_stmt *pStmt, int i){ Mem *pOut = columnMem(pStmt, i); if( pOut->flags&MEM_Static ){ pOut->flags &= ~MEM_Static; pOut->flags |= MEM_Ephem; } columnMallocFailure(pStmt); return (sqlite3_value *)pOut; } #ifndef SQLITE_OMIT_UTF16 SQLITE_API const void *SQLITE_STDCALL sqlite3_column_text16(sqlite3_stmt *pStmt, int i){ const void *val = sqlite3_value_text16( columnMem(pStmt,i) ); columnMallocFailure(pStmt); return val; } #endif /* SQLITE_OMIT_UTF16 */ SQLITE_API int SQLITE_STDCALL sqlite3_column_type(sqlite3_stmt *pStmt, int i){ int iType = sqlite3_value_type( columnMem(pStmt,i) ); columnMallocFailure(pStmt); return iType; } /* ** Convert the N-th element of pStmt->pColName[] into a string using |
︙ | ︙ | |||
69337 69338 69339 69340 69341 69342 69343 | return ret; } /* ** Return the name of the Nth column of the result set returned by SQL ** statement pStmt. */ | | | | | | | | | | | | 69851 69852 69853 69854 69855 69856 69857 69858 69859 69860 69861 69862 69863 69864 69865 69866 69867 69868 69869 69870 69871 69872 69873 69874 69875 69876 69877 69878 69879 69880 69881 69882 69883 69884 69885 69886 69887 69888 69889 69890 69891 69892 69893 69894 69895 69896 69897 69898 69899 69900 69901 69902 69903 69904 69905 69906 69907 69908 69909 69910 69911 69912 69913 69914 69915 69916 69917 69918 69919 69920 69921 69922 69923 69924 69925 69926 69927 69928 69929 69930 69931 69932 69933 69934 69935 69936 69937 69938 69939 69940 69941 69942 69943 69944 69945 | return ret; } /* ** Return the name of the Nth column of the result set returned by SQL ** statement pStmt. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_column_name(sqlite3_stmt *pStmt, int N){ return columnName( pStmt, N, (const void*(*)(Mem*))sqlite3_value_text, COLNAME_NAME); } #ifndef SQLITE_OMIT_UTF16 SQLITE_API const void *SQLITE_STDCALL sqlite3_column_name16(sqlite3_stmt *pStmt, int N){ return columnName( pStmt, N, (const void*(*)(Mem*))sqlite3_value_text16, COLNAME_NAME); } #endif /* ** Constraint: If you have ENABLE_COLUMN_METADATA then you must ** not define OMIT_DECLTYPE. */ #if defined(SQLITE_OMIT_DECLTYPE) && defined(SQLITE_ENABLE_COLUMN_METADATA) # error "Must not define both SQLITE_OMIT_DECLTYPE \ and SQLITE_ENABLE_COLUMN_METADATA" #endif #ifndef SQLITE_OMIT_DECLTYPE /* ** Return the column declaration type (if applicable) of the 'i'th column ** of the result set of SQL statement pStmt. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_column_decltype(sqlite3_stmt *pStmt, int N){ return columnName( pStmt, N, (const void*(*)(Mem*))sqlite3_value_text, COLNAME_DECLTYPE); } #ifndef SQLITE_OMIT_UTF16 SQLITE_API const void *SQLITE_STDCALL sqlite3_column_decltype16(sqlite3_stmt *pStmt, int N){ return columnName( pStmt, N, (const void*(*)(Mem*))sqlite3_value_text16, COLNAME_DECLTYPE); } #endif /* SQLITE_OMIT_UTF16 */ #endif /* SQLITE_OMIT_DECLTYPE */ #ifdef SQLITE_ENABLE_COLUMN_METADATA /* ** Return the name of the database from which a result column derives. ** NULL is returned if the result column is an expression or constant or ** anything else which is not an unambiguous reference to a database column. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_column_database_name(sqlite3_stmt *pStmt, int N){ return columnName( pStmt, N, (const void*(*)(Mem*))sqlite3_value_text, COLNAME_DATABASE); } #ifndef SQLITE_OMIT_UTF16 SQLITE_API const void *SQLITE_STDCALL sqlite3_column_database_name16(sqlite3_stmt *pStmt, int N){ return columnName( pStmt, N, (const void*(*)(Mem*))sqlite3_value_text16, COLNAME_DATABASE); } #endif /* SQLITE_OMIT_UTF16 */ /* ** Return the name of the table from which a result column derives. ** NULL is returned if the result column is an expression or constant or ** anything else which is not an unambiguous reference to a database column. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_column_table_name(sqlite3_stmt *pStmt, int N){ return columnName( pStmt, N, (const void*(*)(Mem*))sqlite3_value_text, COLNAME_TABLE); } #ifndef SQLITE_OMIT_UTF16 SQLITE_API const void *SQLITE_STDCALL sqlite3_column_table_name16(sqlite3_stmt *pStmt, int N){ return columnName( pStmt, N, (const void*(*)(Mem*))sqlite3_value_text16, COLNAME_TABLE); } #endif /* SQLITE_OMIT_UTF16 */ /* ** Return the name of the table column from which a result column derives. ** NULL is returned if the result column is an expression or constant or ** anything else which is not an unambiguous reference to a database column. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_column_origin_name(sqlite3_stmt *pStmt, int N){ return columnName( pStmt, N, (const void*(*)(Mem*))sqlite3_value_text, COLNAME_COLUMN); } #ifndef SQLITE_OMIT_UTF16 SQLITE_API const void *SQLITE_STDCALL sqlite3_column_origin_name16(sqlite3_stmt *pStmt, int N){ return columnName( pStmt, N, (const void*(*)(Mem*))sqlite3_value_text16, COLNAME_COLUMN); } #endif /* SQLITE_OMIT_UTF16 */ #endif /* SQLITE_ENABLE_COLUMN_METADATA */ |
︙ | ︙ | |||
69518 69519 69520 69521 69522 69523 69524 | return rc; } /* ** Bind a blob value to an SQL statement variable. */ | | | | | | | | | | | | 70032 70033 70034 70035 70036 70037 70038 70039 70040 70041 70042 70043 70044 70045 70046 70047 70048 70049 70050 70051 70052 70053 70054 70055 70056 70057 70058 70059 70060 70061 70062 70063 70064 70065 70066 70067 70068 70069 70070 70071 70072 70073 70074 70075 70076 70077 70078 70079 70080 70081 70082 70083 70084 70085 70086 70087 70088 70089 70090 70091 70092 70093 70094 70095 70096 70097 70098 70099 70100 70101 70102 70103 70104 70105 70106 70107 70108 70109 70110 70111 70112 70113 70114 70115 70116 70117 70118 70119 70120 70121 70122 70123 70124 70125 70126 70127 70128 70129 70130 70131 70132 70133 70134 70135 70136 70137 | return rc; } /* ** Bind a blob value to an SQL statement variable. */ SQLITE_API int SQLITE_STDCALL sqlite3_bind_blob( sqlite3_stmt *pStmt, int i, const void *zData, int nData, void (*xDel)(void*) ){ return bindText(pStmt, i, zData, nData, xDel, 0); } SQLITE_API int SQLITE_STDCALL sqlite3_bind_blob64( sqlite3_stmt *pStmt, int i, const void *zData, sqlite3_uint64 nData, void (*xDel)(void*) ){ assert( xDel!=SQLITE_DYNAMIC ); if( nData>0x7fffffff ){ return invokeValueDestructor(zData, xDel, 0); }else{ return bindText(pStmt, i, zData, (int)nData, xDel, 0); } } SQLITE_API int SQLITE_STDCALL sqlite3_bind_double(sqlite3_stmt *pStmt, int i, double rValue){ int rc; Vdbe *p = (Vdbe *)pStmt; rc = vdbeUnbind(p, i); if( rc==SQLITE_OK ){ sqlite3VdbeMemSetDouble(&p->aVar[i-1], rValue); sqlite3_mutex_leave(p->db->mutex); } return rc; } SQLITE_API int SQLITE_STDCALL sqlite3_bind_int(sqlite3_stmt *p, int i, int iValue){ return sqlite3_bind_int64(p, i, (i64)iValue); } SQLITE_API int SQLITE_STDCALL sqlite3_bind_int64(sqlite3_stmt *pStmt, int i, sqlite_int64 iValue){ int rc; Vdbe *p = (Vdbe *)pStmt; rc = vdbeUnbind(p, i); if( rc==SQLITE_OK ){ sqlite3VdbeMemSetInt64(&p->aVar[i-1], iValue); sqlite3_mutex_leave(p->db->mutex); } return rc; } SQLITE_API int SQLITE_STDCALL sqlite3_bind_null(sqlite3_stmt *pStmt, int i){ int rc; Vdbe *p = (Vdbe*)pStmt; rc = vdbeUnbind(p, i); if( rc==SQLITE_OK ){ sqlite3_mutex_leave(p->db->mutex); } return rc; } SQLITE_API int SQLITE_STDCALL sqlite3_bind_text( sqlite3_stmt *pStmt, int i, const char *zData, int nData, void (*xDel)(void*) ){ return bindText(pStmt, i, zData, nData, xDel, SQLITE_UTF8); } SQLITE_API int SQLITE_STDCALL sqlite3_bind_text64( sqlite3_stmt *pStmt, int i, const char *zData, sqlite3_uint64 nData, void (*xDel)(void*), unsigned char enc ){ assert( xDel!=SQLITE_DYNAMIC ); if( nData>0x7fffffff ){ return invokeValueDestructor(zData, xDel, 0); }else{ if( enc==SQLITE_UTF16 ) enc = SQLITE_UTF16NATIVE; return bindText(pStmt, i, zData, (int)nData, xDel, enc); } } #ifndef SQLITE_OMIT_UTF16 SQLITE_API int SQLITE_STDCALL sqlite3_bind_text16( sqlite3_stmt *pStmt, int i, const void *zData, int nData, void (*xDel)(void*) ){ return bindText(pStmt, i, zData, nData, xDel, SQLITE_UTF16NATIVE); } #endif /* SQLITE_OMIT_UTF16 */ SQLITE_API int SQLITE_STDCALL sqlite3_bind_value(sqlite3_stmt *pStmt, int i, const sqlite3_value *pValue){ int rc; switch( sqlite3_value_type((sqlite3_value*)pValue) ){ case SQLITE_INTEGER: { rc = sqlite3_bind_int64(pStmt, i, pValue->u.i); break; } case SQLITE_FLOAT: { |
︙ | ︙ | |||
69640 69641 69642 69643 69644 69645 69646 | default: { rc = sqlite3_bind_null(pStmt, i); break; } } return rc; } | | | | | 70154 70155 70156 70157 70158 70159 70160 70161 70162 70163 70164 70165 70166 70167 70168 70169 70170 70171 70172 70173 70174 70175 70176 70177 70178 70179 70180 70181 70182 70183 70184 70185 70186 70187 70188 70189 70190 70191 70192 70193 70194 | default: { rc = sqlite3_bind_null(pStmt, i); break; } } return rc; } SQLITE_API int SQLITE_STDCALL sqlite3_bind_zeroblob(sqlite3_stmt *pStmt, int i, int n){ int rc; Vdbe *p = (Vdbe *)pStmt; rc = vdbeUnbind(p, i); if( rc==SQLITE_OK ){ sqlite3VdbeMemSetZeroBlob(&p->aVar[i-1], n); sqlite3_mutex_leave(p->db->mutex); } return rc; } /* ** Return the number of wildcards that can be potentially bound to. ** This routine is added to support DBD::SQLite. */ SQLITE_API int SQLITE_STDCALL sqlite3_bind_parameter_count(sqlite3_stmt *pStmt){ Vdbe *p = (Vdbe*)pStmt; return p ? p->nVar : 0; } /* ** Return the name of a wildcard parameter. Return NULL if the index ** is out of range or if the wildcard is unnamed. ** ** The result is always UTF-8. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_bind_parameter_name(sqlite3_stmt *pStmt, int i){ Vdbe *p = (Vdbe*)pStmt; if( p==0 || i<1 || i>p->nzVar ){ return 0; } return p->azVar[i-1]; } |
︙ | ︙ | |||
69694 69695 69696 69697 69698 69699 69700 | if( z && strncmp(z,zName,nName)==0 && z[nName]==0 ){ return i+1; } } } return 0; } | | | 70208 70209 70210 70211 70212 70213 70214 70215 70216 70217 70218 70219 70220 70221 70222 | if( z && strncmp(z,zName,nName)==0 && z[nName]==0 ){ return i+1; } } } return 0; } SQLITE_API int SQLITE_STDCALL sqlite3_bind_parameter_index(sqlite3_stmt *pStmt, const char *zName){ return sqlite3VdbeParameterIndex((Vdbe*)pStmt, zName, sqlite3Strlen30(zName)); } /* ** Transfer all bindings from the first statement over to the second. */ SQLITE_PRIVATE int sqlite3TransferBindings(sqlite3_stmt *pFromStmt, sqlite3_stmt *pToStmt){ |
︙ | ︙ | |||
69728 69729 69730 69731 69732 69733 69734 | ** database connections. But as this is a deprecated interface, we ** will not bother to check for that condition. ** ** If the two statements contain a different number of bindings, then ** an SQLITE_ERROR is returned. Nothing else can go wrong, so otherwise ** SQLITE_OK is returned. */ | | | 70242 70243 70244 70245 70246 70247 70248 70249 70250 70251 70252 70253 70254 70255 70256 | ** database connections. But as this is a deprecated interface, we ** will not bother to check for that condition. ** ** If the two statements contain a different number of bindings, then ** an SQLITE_ERROR is returned. Nothing else can go wrong, so otherwise ** SQLITE_OK is returned. */ SQLITE_API int SQLITE_STDCALL sqlite3_transfer_bindings(sqlite3_stmt *pFromStmt, sqlite3_stmt *pToStmt){ Vdbe *pFrom = (Vdbe*)pFromStmt; Vdbe *pTo = (Vdbe*)pToStmt; if( pFrom->nVar!=pTo->nVar ){ return SQLITE_ERROR; } if( pTo->isPrepareV2 && pTo->expmask ){ pTo->expired = 1; |
︙ | ︙ | |||
69750 69751 69752 69753 69754 69755 69756 | /* ** Return the sqlite3* database handle to which the prepared statement given ** in the argument belongs. This is the same database handle that was ** the first argument to the sqlite3_prepare() that was used to create ** the statement in the first place. */ | | | | | | | | 70264 70265 70266 70267 70268 70269 70270 70271 70272 70273 70274 70275 70276 70277 70278 70279 70280 70281 70282 70283 70284 70285 70286 70287 70288 70289 70290 70291 70292 70293 70294 70295 70296 70297 70298 70299 70300 70301 70302 70303 70304 70305 70306 70307 70308 70309 70310 70311 70312 70313 70314 70315 70316 70317 70318 70319 70320 70321 70322 70323 70324 70325 70326 70327 70328 70329 70330 70331 70332 70333 70334 70335 70336 70337 70338 70339 70340 70341 70342 70343 | /* ** Return the sqlite3* database handle to which the prepared statement given ** in the argument belongs. This is the same database handle that was ** the first argument to the sqlite3_prepare() that was used to create ** the statement in the first place. */ SQLITE_API sqlite3 *SQLITE_STDCALL sqlite3_db_handle(sqlite3_stmt *pStmt){ return pStmt ? ((Vdbe*)pStmt)->db : 0; } /* ** Return true if the prepared statement is guaranteed to not modify the ** database. */ SQLITE_API int SQLITE_STDCALL sqlite3_stmt_readonly(sqlite3_stmt *pStmt){ return pStmt ? ((Vdbe*)pStmt)->readOnly : 1; } /* ** Return true if the prepared statement is in need of being reset. */ SQLITE_API int SQLITE_STDCALL sqlite3_stmt_busy(sqlite3_stmt *pStmt){ Vdbe *v = (Vdbe*)pStmt; return v!=0 && v->pc>=0 && v->magic==VDBE_MAGIC_RUN; } /* ** Return a pointer to the next prepared statement after pStmt associated ** with database connection pDb. If pStmt is NULL, return the first ** prepared statement for the database connection. Return NULL if there ** are no more. */ SQLITE_API sqlite3_stmt *SQLITE_STDCALL sqlite3_next_stmt(sqlite3 *pDb, sqlite3_stmt *pStmt){ sqlite3_stmt *pNext; #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(pDb) ){ (void)SQLITE_MISUSE_BKPT; return 0; } #endif sqlite3_mutex_enter(pDb->mutex); if( pStmt==0 ){ pNext = (sqlite3_stmt*)pDb->pVdbe; }else{ pNext = (sqlite3_stmt*)((Vdbe*)pStmt)->pNext; } sqlite3_mutex_leave(pDb->mutex); return pNext; } /* ** Return the value of a status counter for a prepared statement */ SQLITE_API int SQLITE_STDCALL sqlite3_stmt_status(sqlite3_stmt *pStmt, int op, int resetFlag){ Vdbe *pVdbe = (Vdbe*)pStmt; u32 v; #ifdef SQLITE_ENABLE_API_ARMOR if( !pStmt ){ (void)SQLITE_MISUSE_BKPT; return 0; } #endif v = pVdbe->aCounter[op]; if( resetFlag ) pVdbe->aCounter[op] = 0; return (int)v; } #ifdef SQLITE_ENABLE_STMT_SCANSTATUS /* ** Return status data for a single loop within query pStmt. */ SQLITE_API int SQLITE_STDCALL sqlite3_stmt_scanstatus( sqlite3_stmt *pStmt, /* Prepared statement being queried */ int idx, /* Index of loop to report on */ int iScanStatusOp, /* Which metric to return */ void *pOut /* OUT: Write the answer here */ ){ Vdbe *p = (Vdbe*)pStmt; ScanStatus *pScan; |
︙ | ︙ | |||
69874 69875 69876 69877 69878 69879 69880 | } return 0; } /* ** Zero all counters associated with the sqlite3_stmt_scanstatus() data. */ | | | 70388 70389 70390 70391 70392 70393 70394 70395 70396 70397 70398 70399 70400 70401 70402 | } return 0; } /* ** Zero all counters associated with the sqlite3_stmt_scanstatus() data. */ SQLITE_API void SQLITE_STDCALL sqlite3_stmt_scanstatus_reset(sqlite3_stmt *pStmt){ Vdbe *p = (Vdbe*)pStmt; memset(p->anExec, 0, p->nOp * sizeof(i64)); } #endif /* SQLITE_ENABLE_STMT_SCANSTATUS */ /************** End of vdbeapi.c *********************************************/ /************** Begin file vdbetrace.c ***************************************/ |
︙ | ︙ | |||
70373 70374 70375 70376 70377 70378 70379 | /* ** Try to convert the type of a function argument or a result column ** into a numeric representation. Use either INTEGER or REAL whichever ** is appropriate. But only do the conversion if it is possible without ** loss of information and return the revised type of the argument. */ | | | 70887 70888 70889 70890 70891 70892 70893 70894 70895 70896 70897 70898 70899 70900 70901 | /* ** Try to convert the type of a function argument or a result column ** into a numeric representation. Use either INTEGER or REAL whichever ** is appropriate. But only do the conversion if it is possible without ** loss of information and return the revised type of the argument. */ SQLITE_API int SQLITE_STDCALL sqlite3_value_numeric_type(sqlite3_value *pVal){ int eType = sqlite3_value_type(pVal); if( eType==SQLITE_TEXT ){ Mem *pMem = (Mem*)pVal; applyNumericAffinity(pMem, 0); eType = sqlite3_value_type(pVal); } return eType; |
︙ | ︙ | |||
71172 71173 71174 71175 71176 71177 71178 | } #endif /* Opcode: String8 * P2 * P4 * ** Synopsis: r[P2]='P4' ** ** P4 points to a nul terminated UTF-8 string. This opcode is transformed | | | 71686 71687 71688 71689 71690 71691 71692 71693 71694 71695 71696 71697 71698 71699 71700 | } #endif /* Opcode: String8 * P2 * P4 * ** Synopsis: r[P2]='P4' ** ** P4 points to a nul terminated UTF-8 string. This opcode is transformed ** into a String opcode before it is executed for the first time. During ** this transformation, the length of string P4 is computed and stored ** as the P1 parameter. */ case OP_String8: { /* same as TK_STRING, out2-prerelease */ assert( pOp->p4.z!=0 ); pOp->opcode = OP_String; pOp->p1 = sqlite3Strlen30(pOp->p4.z); |
︙ | ︙ | |||
71204 71205 71206 71207 71208 71209 71210 | #endif if( pOp->p1>db->aLimit[SQLITE_LIMIT_LENGTH] ){ goto too_big; } /* Fall through to the next case, OP_String */ } | | > > > > > > > > > > > > | 71718 71719 71720 71721 71722 71723 71724 71725 71726 71727 71728 71729 71730 71731 71732 71733 71734 71735 71736 71737 71738 71739 71740 71741 71742 71743 71744 71745 71746 71747 71748 71749 71750 71751 71752 71753 71754 71755 | #endif if( pOp->p1>db->aLimit[SQLITE_LIMIT_LENGTH] ){ goto too_big; } /* Fall through to the next case, OP_String */ } /* Opcode: String P1 P2 P3 P4 P5 ** Synopsis: r[P2]='P4' (len=P1) ** ** The string value P4 of length P1 (bytes) is stored in register P2. ** ** If P5!=0 and the content of register P3 is greater than zero, then ** the datatype of the register P2 is converted to BLOB. The content is ** the same sequence of bytes, it is merely interpreted as a BLOB instead ** of a string, as if it had been CAST. */ case OP_String: { /* out2-prerelease */ assert( pOp->p4.z!=0 ); pOut->flags = MEM_Str|MEM_Static|MEM_Term; pOut->z = pOp->p4.z; pOut->n = pOp->p1; pOut->enc = encoding; UPDATE_MAX_BLOBSIZE(pOut); if( pOp->p5 ){ assert( pOp->p3>0 ); assert( pOp->p3<=(p->nMem-p->nCursor) ); pIn3 = &aMem[pOp->p3]; assert( pIn3->flags & MEM_Int ); if( pIn3->u.i ) pOut->flags = MEM_Blob|MEM_Static|MEM_Term; } break; } /* Opcode: Null P1 P2 P3 * * ** Synopsis: r[P2..P3]=NULL ** ** Write a NULL into registers P2. If P3 greater than P2, then also write |
︙ | ︙ | |||
71662 71663 71664 71665 71666 71667 71668 | ** ** If P1 is not zero, then it is a register that a subsequent min() or ** max() aggregate will set to 1 if the current row is not the minimum or ** maximum. The P1 register is initialized to 0 by this instruction. ** ** The interface used by the implementation of the aforementioned functions ** to retrieve the collation sequence set by this opcode is not available | | | 72188 72189 72190 72191 72192 72193 72194 72195 72196 72197 72198 72199 72200 72201 72202 | ** ** If P1 is not zero, then it is a register that a subsequent min() or ** max() aggregate will set to 1 if the current row is not the minimum or ** maximum. The P1 register is initialized to 0 by this instruction. ** ** The interface used by the implementation of the aforementioned functions ** to retrieve the collation sequence set by this opcode is not available ** publicly. Only built-in functions have access to this feature. */ case OP_CollSeq: { assert( pOp->p4type==P4_COLLSEQ ); if( pOp->p1 ){ sqlite3VdbeMemSetInt64(&aMem[pOp->p1], 0); } break; |
︙ | ︙ | |||
72065 72066 72067 72068 72069 72070 72071 72072 72073 72074 72075 72076 72077 72078 72079 72080 72081 72082 72083 | applyNumericAffinity(pIn3,0); } }else if( affinity==SQLITE_AFF_TEXT ){ if( (pIn1->flags & MEM_Str)==0 && (pIn1->flags & (MEM_Int|MEM_Real))!=0 ){ testcase( pIn1->flags & MEM_Int ); testcase( pIn1->flags & MEM_Real ); sqlite3VdbeMemStringify(pIn1, encoding, 1); } if( (pIn3->flags & MEM_Str)==0 && (pIn3->flags & (MEM_Int|MEM_Real))!=0 ){ testcase( pIn3->flags & MEM_Int ); testcase( pIn3->flags & MEM_Real ); sqlite3VdbeMemStringify(pIn3, encoding, 1); } } assert( pOp->p4type==P4_COLLSEQ || pOp->p4.pColl==0 ); if( pIn1->flags & MEM_Zero ){ sqlite3VdbeMemExpandBlob(pIn1); flags1 &= ~MEM_Zero; } | > > > > | 72591 72592 72593 72594 72595 72596 72597 72598 72599 72600 72601 72602 72603 72604 72605 72606 72607 72608 72609 72610 72611 72612 72613 | applyNumericAffinity(pIn3,0); } }else if( affinity==SQLITE_AFF_TEXT ){ if( (pIn1->flags & MEM_Str)==0 && (pIn1->flags & (MEM_Int|MEM_Real))!=0 ){ testcase( pIn1->flags & MEM_Int ); testcase( pIn1->flags & MEM_Real ); sqlite3VdbeMemStringify(pIn1, encoding, 1); testcase( (flags1&MEM_Dyn) != (pIn1->flags&MEM_Dyn) ); flags1 = (pIn1->flags & ~MEM_TypeMask) | (flags1 & MEM_TypeMask); } if( (pIn3->flags & MEM_Str)==0 && (pIn3->flags & (MEM_Int|MEM_Real))!=0 ){ testcase( pIn3->flags & MEM_Int ); testcase( pIn3->flags & MEM_Real ); sqlite3VdbeMemStringify(pIn3, encoding, 1); testcase( (flags3&MEM_Dyn) != (pIn3->flags&MEM_Dyn) ); flags3 = (pIn3->flags & ~MEM_TypeMask) | (flags3 & MEM_TypeMask); } } assert( pOp->p4type==P4_COLLSEQ || pOp->p4.pColl==0 ); if( pIn1->flags & MEM_Zero ){ sqlite3VdbeMemExpandBlob(pIn1); flags1 &= ~MEM_Zero; } |
︙ | ︙ | |||
72106 72107 72108 72109 72110 72111 72112 72113 72114 72115 72116 72117 72118 72119 72120 | }else{ VdbeBranchTaken(res!=0, (pOp->p5 & SQLITE_NULLEQ)?2:3); if( res ){ pc = pOp->p2-1; } } /* Undo any changes made by applyAffinity() to the input registers. */ pIn1->flags = flags1; pIn3->flags = flags3; break; } /* Opcode: Permutation * * * P4 * ** ** Set the permutation used by the OP_Compare operator to be the array | > > | 72636 72637 72638 72639 72640 72641 72642 72643 72644 72645 72646 72647 72648 72649 72650 72651 72652 | }else{ VdbeBranchTaken(res!=0, (pOp->p5 & SQLITE_NULLEQ)?2:3); if( res ){ pc = pOp->p2-1; } } /* Undo any changes made by applyAffinity() to the input registers. */ assert( (pIn1->flags & MEM_Dyn) == (flags1 & MEM_Dyn) ); pIn1->flags = flags1; assert( (pIn3->flags & MEM_Dyn) == (flags3 & MEM_Dyn) ); pIn3->flags = flags3; break; } /* Opcode: Permutation * * * P4 * ** ** Set the permutation used by the OP_Compare operator to be the array |
︙ | ︙ | |||
73207 73208 73209 73210 73211 73212 73213 | /* Store the current value of the database handles deferred constraint ** counter. If the statement transaction needs to be rolled back, ** the value of this counter needs to be restored too. */ p->nStmtDefCons = db->nDeferredCons; p->nStmtDefImmCons = db->nDeferredImmCons; } | | > > > > > | 73739 73740 73741 73742 73743 73744 73745 73746 73747 73748 73749 73750 73751 73752 73753 73754 73755 73756 73757 73758 | /* Store the current value of the database handles deferred constraint ** counter. If the statement transaction needs to be rolled back, ** the value of this counter needs to be restored too. */ p->nStmtDefCons = db->nDeferredCons; p->nStmtDefImmCons = db->nDeferredImmCons; } /* Gather the schema version number for checking: ** IMPLEMENTATION-OF: R-32195-19465 The schema version is used by SQLite ** each time a query is executed to ensure that the internal cache of the ** schema used when compiling the SQL query matches the schema of the ** database against which the compiled query is actually executed. */ sqlite3BtreeGetMeta(pBt, BTREE_SCHEMA_VERSION, (u32 *)&iMeta); iGen = db->aDb[pOp->p1].pSchema->iGeneration; }else{ iGen = iMeta = 0; } assert( pOp->p5==0 || pOp->p4type==P4_INT32 ); if( pOp->p5 && (iMeta!=pOp->p3 || iGen!=pOp->p4.i) ){ |
︙ | ︙ | |||
73375 73376 73377 73378 73379 73380 73381 | ** This instruction works just like OpenRead except that it opens the cursor ** in read/write mode. For a given table, there can be one or more read-only ** cursors or a single read/write cursor but not both. ** ** See also OpenRead. */ case OP_ReopenIdx: { | < < < < < < < < < < < < < < > > > > > > > > > > > > | | | 73912 73913 73914 73915 73916 73917 73918 73919 73920 73921 73922 73923 73924 73925 73926 73927 73928 73929 73930 73931 73932 73933 73934 73935 73936 73937 73938 73939 73940 73941 73942 73943 73944 73945 73946 73947 73948 | ** This instruction works just like OpenRead except that it opens the cursor ** in read/write mode. For a given table, there can be one or more read-only ** cursors or a single read/write cursor but not both. ** ** See also OpenRead. */ case OP_ReopenIdx: { int nField; KeyInfo *pKeyInfo; int p2; int iDb; int wrFlag; Btree *pX; VdbeCursor *pCur; Db *pDb; assert( pOp->p5==0 || pOp->p5==OPFLAG_SEEKEQ ); assert( pOp->p4type==P4_KEYINFO ); pCur = p->apCsr[pOp->p1]; if( pCur && pCur->pgnoRoot==(u32)pOp->p2 ){ assert( pCur->iDb==pOp->p3 ); /* Guaranteed by the code generator */ goto open_cursor_set_hints; } /* If the cursor is not currently open or is open on a different ** index, then fall through into OP_OpenRead to force a reopen */ case OP_OpenRead: case OP_OpenWrite: assert( (pOp->p5&(OPFLAG_P2ISREG|OPFLAG_BULKCSR|OPFLAG_SEEKEQ))==pOp->p5 ); assert( pOp->opcode==OP_OpenWrite || pOp->p5==0 || pOp->p5==OPFLAG_SEEKEQ ); assert( p->bIsReader ); assert( pOp->opcode==OP_OpenRead || pOp->opcode==OP_ReopenIdx || p->readOnly==0 ); if( p->expired ){ rc = SQLITE_ABORT_ROLLBACK; break; |
︙ | ︙ | |||
73462 73463 73464 73465 73466 73467 73468 | pCur = allocateCursor(p, pOp->p1, nField, iDb, 1); if( pCur==0 ) goto no_mem; pCur->nullRow = 1; pCur->isOrdered = 1; pCur->pgnoRoot = p2; rc = sqlite3BtreeCursor(pX, p2, wrFlag, pKeyInfo, pCur->pCursor); pCur->pKeyInfo = pKeyInfo; | < < < > > > > > > | 73997 73998 73999 74000 74001 74002 74003 74004 74005 74006 74007 74008 74009 74010 74011 74012 74013 74014 74015 74016 74017 74018 74019 74020 74021 | pCur = allocateCursor(p, pOp->p1, nField, iDb, 1); if( pCur==0 ) goto no_mem; pCur->nullRow = 1; pCur->isOrdered = 1; pCur->pgnoRoot = p2; rc = sqlite3BtreeCursor(pX, p2, wrFlag, pKeyInfo, pCur->pCursor); pCur->pKeyInfo = pKeyInfo; /* Set the VdbeCursor.isTable variable. Previous versions of ** SQLite used to check if the root-page flags were sane at this point ** and report database corruption if they were not, but this check has ** since moved into the btree layer. */ pCur->isTable = pOp->p4type!=P4_KEYINFO; open_cursor_set_hints: assert( OPFLAG_BULKCSR==BTREE_BULKLOAD ); assert( OPFLAG_SEEKEQ==BTREE_SEEK_EQ ); sqlite3BtreeCursorHints(pCur->pCursor, (pOp->p5 & (OPFLAG_BULKCSR|OPFLAG_SEEKEQ))); break; } /* Opcode: OpenEphemeral P1 P2 * P4 P5 ** Synopsis: nColumn=P2 ** ** Open a new cursor P1 to a transient table. |
︙ | ︙ | |||
73730 73731 73732 73733 73734 73735 73736 73737 73738 73739 73740 73741 73742 73743 | assert( pC->isOrdered ); assert( pC->pCursor!=0 ); oc = pOp->opcode; pC->nullRow = 0; #ifdef SQLITE_DEBUG pC->seekOp = pOp->opcode; #endif if( pC->isTable ){ /* The input value in P3 might be of any type: integer, real, string, ** blob, or NULL. But it needs to be an integer before we can do ** the seek, so convert it. */ pIn3 = &aMem[pOp->p3]; if( (pIn3->flags & (MEM_Int|MEM_Real|MEM_Str))==MEM_Str ){ applyNumericAffinity(pIn3, 0); | > > > > > > > > > > > > > > > > | 74268 74269 74270 74271 74272 74273 74274 74275 74276 74277 74278 74279 74280 74281 74282 74283 74284 74285 74286 74287 74288 74289 74290 74291 74292 74293 74294 74295 74296 74297 | assert( pC->isOrdered ); assert( pC->pCursor!=0 ); oc = pOp->opcode; pC->nullRow = 0; #ifdef SQLITE_DEBUG pC->seekOp = pOp->opcode; #endif /* For a cursor with the BTREE_SEEK_EQ hint, only the OP_SeekGE and ** OP_SeekLE opcodes are allowed, and these must be immediately followed ** by an OP_IdxGT or OP_IdxLT opcode, respectively, with the same key. */ #ifdef SQLITE_DEBUG if( sqlite3BtreeCursorHasHint(pC->pCursor, BTREE_SEEK_EQ) ){ assert( pOp->opcode==OP_SeekGE || pOp->opcode==OP_SeekLE ); assert( pOp[1].opcode==OP_IdxLT || pOp[1].opcode==OP_IdxGT ); assert( pOp[1].p1==pOp[0].p1 ); assert( pOp[1].p2==pOp[0].p2 ); assert( pOp[1].p3==pOp[0].p3 ); assert( pOp[1].p4.i==pOp[0].p4.i ); } #endif if( pC->isTable ){ /* The input value in P3 might be of any type: integer, real, string, ** blob, or NULL. But it needs to be an integer before we can do ** the seek, so convert it. */ pIn3 = &aMem[pOp->p3]; if( (pIn3->flags & (MEM_Int|MEM_Real|MEM_Str))==MEM_Str ){ applyNumericAffinity(pIn3, 0); |
︙ | ︙ | |||
75069 75070 75071 75072 75073 75074 75075 | ** the last one in the database) then a zero is stored in register P2. ** If AUTOVACUUM is disabled then a zero is stored in register P2. ** ** See also: Clear */ case OP_Destroy: { /* out2-prerelease */ int iMoved; | < < < < < < < < < < < < < < | < | 75623 75624 75625 75626 75627 75628 75629 75630 75631 75632 75633 75634 75635 75636 75637 75638 75639 75640 75641 75642 75643 75644 75645 | ** the last one in the database) then a zero is stored in register P2. ** If AUTOVACUUM is disabled then a zero is stored in register P2. ** ** See also: Clear */ case OP_Destroy: { /* out2-prerelease */ int iMoved; int iDb; assert( p->readOnly==0 ); pOut->flags = MEM_Null; if( db->nVdbeRead > db->nVDestroy+1 ){ rc = SQLITE_LOCKED; p->errorAction = OE_Abort; }else{ iDb = pOp->p3; assert( DbMaskTest(p->btreeMask, iDb) ); iMoved = 0; /* Not needed. Only to silence a warning. */ rc = sqlite3BtreeDropTable(db->aDb[iDb].pBt, pOp->p1, &iMoved); pOut->flags = MEM_Int; pOut->u.i = iMoved; #ifndef SQLITE_OMIT_AUTOVACUUM if( rc==SQLITE_OK && iMoved!=0 ){ |
︙ | ︙ | |||
75725 75726 75727 75728 75729 75730 75731 | break; } #endif /* SQLITE_OMIT_AUTOINCREMENT */ /* Opcode: IfPos P1 P2 * * * ** Synopsis: if r[P1]>0 goto P2 ** | > | > | < > | 76264 76265 76266 76267 76268 76269 76270 76271 76272 76273 76274 76275 76276 76277 76278 76279 76280 76281 76282 76283 | break; } #endif /* SQLITE_OMIT_AUTOINCREMENT */ /* Opcode: IfPos P1 P2 * * * ** Synopsis: if r[P1]>0 goto P2 ** ** Register P1 must contain an integer. ** If the value of register P1 is 1 or greater, jump to P2 and ** add the literal value P3 to register P1. ** ** If the initial value of register P1 is less than 1, then the ** value is unchanged and control passes through to the next instruction. */ case OP_IfPos: { /* jump, in1 */ pIn1 = &aMem[pOp->p1]; assert( pIn1->flags&MEM_Int ); VdbeBranchTaken( pIn1->u.i>0, 2); if( pIn1->u.i>0 ){ pc = pOp->p2 - 1; |
︙ | ︙ | |||
75757 75758 75759 75760 75761 75762 75763 | VdbeBranchTaken(pIn1->u.i<0, 2); if( pIn1->u.i<0 ){ pc = pOp->p2 - 1; } break; } | | | | | > | > > | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 76298 76299 76300 76301 76302 76303 76304 76305 76306 76307 76308 76309 76310 76311 76312 76313 76314 76315 76316 76317 76318 76319 76320 76321 76322 76323 76324 76325 76326 76327 76328 76329 76330 76331 76332 76333 76334 76335 76336 76337 76338 76339 76340 76341 76342 76343 76344 76345 76346 76347 76348 76349 76350 76351 76352 76353 76354 76355 76356 76357 76358 76359 76360 76361 76362 76363 76364 | VdbeBranchTaken(pIn1->u.i<0, 2); if( pIn1->u.i<0 ){ pc = pOp->p2 - 1; } break; } /* Opcode: IfNotZero P1 P2 P3 * * ** Synopsis: if r[P1]!=0 then r[P1]+=P3, goto P2 ** ** Register P1 must contain an integer. If the content of register P1 is ** initially nonzero, then add P3 to P1 and jump to P2. If register P1 is ** initially zero, leave it unchanged and fall through. */ case OP_IfNotZero: { /* jump, in1 */ pIn1 = &aMem[pOp->p1]; assert( pIn1->flags&MEM_Int ); VdbeBranchTaken(pIn1->u.i<0, 2); if( pIn1->u.i ){ pIn1->u.i += pOp->p3; pc = pOp->p2 - 1; } break; } /* Opcode: DecrJumpZero P1 P2 * * * ** Synopsis: if (--r[P1])==0 goto P2 ** ** Register P1 must hold an integer. Decrement the value in register P1 ** then jump to P2 if the new value is exactly zero. */ case OP_DecrJumpZero: { /* jump, in1 */ pIn1 = &aMem[pOp->p1]; assert( pIn1->flags&MEM_Int ); pIn1->u.i--; VdbeBranchTaken(pIn1->u.i==0, 2); if( pIn1->u.i==0 ){ pc = pOp->p2 - 1; } break; } /* Opcode: JumpZeroIncr P1 P2 * * * ** Synopsis: if (r[P1]++)==0 ) goto P2 ** ** The register P1 must contain an integer. If register P1 is initially ** zero, then jump to P2. Increment register P1 regardless of whether or ** not the jump is taken. */ case OP_JumpZeroIncr: { /* jump, in1 */ pIn1 = &aMem[pOp->p1]; assert( pIn1->flags&MEM_Int ); VdbeBranchTaken(pIn1->u.i==0, 2); if( (pIn1->u.i++)==0 ){ pc = pOp->p2 - 1; } break; } /* Opcode: AggStep * P2 P3 P4 P5 ** Synopsis: accum=r[P3] step(r[P2@P5]) ** ** Execute the step function for an aggregate. The ** function has P5 arguments. P4 is a pointer to the FuncDef ** structure that specifies the function. Use register ** P3 as the accumulator. |
︙ | ︙ | |||
76111 76112 76113 76114 76115 76116 76117 | rc = sqlite3VtabBegin(db, pVTab); if( pVTab ) sqlite3VtabImportErrmsg(p, pVTab->pVtab); break; } #endif /* SQLITE_OMIT_VIRTUALTABLE */ #ifndef SQLITE_OMIT_VIRTUALTABLE | | | | > > > > > > > > > > > > > > | > > | | | | > > > | > | 76688 76689 76690 76691 76692 76693 76694 76695 76696 76697 76698 76699 76700 76701 76702 76703 76704 76705 76706 76707 76708 76709 76710 76711 76712 76713 76714 76715 76716 76717 76718 76719 76720 76721 76722 76723 76724 76725 76726 76727 76728 76729 76730 76731 76732 76733 76734 76735 76736 76737 76738 76739 76740 76741 76742 76743 76744 76745 76746 76747 76748 76749 76750 76751 76752 76753 76754 76755 76756 76757 76758 76759 76760 76761 76762 76763 76764 76765 76766 76767 76768 76769 76770 76771 76772 76773 76774 76775 | rc = sqlite3VtabBegin(db, pVTab); if( pVTab ) sqlite3VtabImportErrmsg(p, pVTab->pVtab); break; } #endif /* SQLITE_OMIT_VIRTUALTABLE */ #ifndef SQLITE_OMIT_VIRTUALTABLE /* Opcode: VCreate P1 P2 * * * ** ** P2 is a register that holds the name of a virtual table in database ** P1. Call the xCreate method for that table. */ case OP_VCreate: { Mem sMem; /* For storing the record being decoded */ const char *zTab; /* Name of the virtual table */ memset(&sMem, 0, sizeof(sMem)); sMem.db = db; /* Because P2 is always a static string, it is impossible for the ** sqlite3VdbeMemCopy() to fail */ assert( (aMem[pOp->p2].flags & MEM_Str)!=0 ); assert( (aMem[pOp->p2].flags & MEM_Static)!=0 ); rc = sqlite3VdbeMemCopy(&sMem, &aMem[pOp->p2]); assert( rc==SQLITE_OK ); zTab = (const char*)sqlite3_value_text(&sMem); assert( zTab || db->mallocFailed ); if( zTab ){ rc = sqlite3VtabCallCreate(db, pOp->p1, zTab, &p->zErrMsg); } sqlite3VdbeMemRelease(&sMem); break; } #endif /* SQLITE_OMIT_VIRTUALTABLE */ #ifndef SQLITE_OMIT_VIRTUALTABLE /* Opcode: VDestroy P1 * * P4 * ** ** P4 is the name of a virtual table in database P1. Call the xDestroy method ** of that table. */ case OP_VDestroy: { db->nVDestroy++; rc = sqlite3VtabCallDestroy(db, pOp->p1, pOp->p4.z); db->nVDestroy--; break; } #endif /* SQLITE_OMIT_VIRTUALTABLE */ #ifndef SQLITE_OMIT_VIRTUALTABLE /* Opcode: VOpen P1 * * P4 * ** ** P4 is a pointer to a virtual table object, an sqlite3_vtab structure. ** P1 is a cursor number. This opcode opens a cursor to the virtual ** table and stores that cursor in P1. */ case OP_VOpen: { VdbeCursor *pCur; sqlite3_vtab_cursor *pVtabCursor; sqlite3_vtab *pVtab; const sqlite3_module *pModule; assert( p->bIsReader ); pCur = 0; pVtabCursor = 0; pVtab = pOp->p4.pVtab->pVtab; if( pVtab==0 || NEVER(pVtab->pModule==0) ){ rc = SQLITE_LOCKED; break; } pModule = pVtab->pModule; rc = pModule->xOpen(pVtab, &pVtabCursor); sqlite3VtabImportErrmsg(p, pVtab); if( SQLITE_OK==rc ){ /* Initialize sqlite3_vtab_cursor base class */ pVtabCursor->pVtab = pVtab; /* Initialize vdbe cursor object */ pCur = allocateCursor(p, pOp->p1, 0, -1, 0); if( pCur ){ pCur->pVtabCursor = pVtabCursor; pVtab->nRef++; }else{ db->mallocFailed = 1; pModule->xClose(pVtabCursor); } } break; } |
︙ | ︙ | |||
76230 76231 76232 76233 76234 76235 76236 | { res = 0; apArg = p->apArg; for(i = 0; i<nArg; i++){ apArg[i] = &pArgc[i+1]; } | < < | 76827 76828 76829 76830 76831 76832 76833 76834 76835 76836 76837 76838 76839 76840 76841 | { res = 0; apArg = p->apArg; for(i = 0; i<nArg; i++){ apArg[i] = &pArgc[i+1]; } rc = pModule->xFilter(pVtabCursor, iQuery, pOp->p4.z, nArg, apArg); sqlite3VtabImportErrmsg(p, pVtab); if( rc==SQLITE_OK ){ res = pModule->xEof(pVtabCursor); } VdbeBranchTaken(res!=0,2); if( res ){ pc = pOp->p2 - 1; |
︙ | ︙ | |||
76322 76323 76324 76325 76326 76327 76328 | /* Invoke the xNext() method of the module. There is no way for the ** underlying implementation to return an error if one occurs during ** xNext(). Instead, if an error occurs, true is returned (indicating that ** data is available) and the error code returned when xColumn or ** some other method is next invoked on the save virtual table cursor. */ | < < | 76917 76918 76919 76920 76921 76922 76923 76924 76925 76926 76927 76928 76929 76930 76931 | /* Invoke the xNext() method of the module. There is no way for the ** underlying implementation to return an error if one occurs during ** xNext(). Instead, if an error occurs, true is returned (indicating that ** data is available) and the error code returned when xColumn or ** some other method is next invoked on the save virtual table cursor. */ rc = pModule->xNext(pCur->pVtabCursor); sqlite3VtabImportErrmsg(p, pVtab); if( rc==SQLITE_OK ){ res = pModule->xEof(pCur->pVtabCursor); } VdbeBranchTaken(!res,2); if( !res ){ /* If there is data, jump to P2 */ |
︙ | ︙ | |||
76399 76400 76401 76402 76403 76404 76405 | ** is set to the value of the rowid for the row just inserted. ** ** P5 is the error actions (OE_Replace, OE_Fail, OE_Ignore, etc) to ** apply in the case of a constraint failure on an insert or update. */ case OP_VUpdate: { sqlite3_vtab *pVtab; | | > > > > | | 76992 76993 76994 76995 76996 76997 76998 76999 77000 77001 77002 77003 77004 77005 77006 77007 77008 77009 77010 77011 77012 77013 77014 77015 77016 77017 77018 77019 77020 77021 77022 | ** is set to the value of the rowid for the row just inserted. ** ** P5 is the error actions (OE_Replace, OE_Fail, OE_Ignore, etc) to ** apply in the case of a constraint failure on an insert or update. */ case OP_VUpdate: { sqlite3_vtab *pVtab; const sqlite3_module *pModule; int nArg; int i; sqlite_int64 rowid; Mem **apArg; Mem *pX; assert( pOp->p2==1 || pOp->p5==OE_Fail || pOp->p5==OE_Rollback || pOp->p5==OE_Abort || pOp->p5==OE_Ignore || pOp->p5==OE_Replace ); assert( p->readOnly==0 ); pVtab = pOp->p4.pVtab->pVtab; if( pVtab==0 || NEVER(pVtab->pModule==0) ){ rc = SQLITE_LOCKED; break; } pModule = pVtab->pModule; nArg = pOp->p2; assert( pOp->p4type==P4_VTAB ); if( ALWAYS(pModule->xUpdate) ){ u8 vtabOnConflict = db->vtabOnConflict; apArg = p->apArg; pX = &aMem[pOp->p3]; for(i=0; i<nArg; i++){ |
︙ | ︙ | |||
76758 76759 76760 76761 76762 76763 76764 | *pzErr = zErr; return rc; } /* ** Open a blob handle. */ | | | 77355 77356 77357 77358 77359 77360 77361 77362 77363 77364 77365 77366 77367 77368 77369 | *pzErr = zErr; return rc; } /* ** Open a blob handle. */ SQLITE_API int SQLITE_STDCALL sqlite3_blob_open( sqlite3* db, /* The database connection */ const char *zDb, /* The attached database containing the blob */ const char *zTable, /* The table containing the blob */ const char *zColumn, /* The column containing the blob */ sqlite_int64 iRow, /* The row containing the glob */ int flags, /* True -> read/write access, false -> read-only */ sqlite3_blob **ppBlob /* Handle for accessing the blob returned here */ |
︙ | ︙ | |||
76808 76809 76810 76811 76812 76813 76814 | int rc = SQLITE_OK; char *zErr = 0; Table *pTab; Parse *pParse = 0; Incrblob *pBlob = 0; #ifdef SQLITE_ENABLE_API_ARMOR | | < > > > > > > | 77405 77406 77407 77408 77409 77410 77411 77412 77413 77414 77415 77416 77417 77418 77419 77420 77421 77422 77423 77424 77425 77426 77427 77428 77429 | int rc = SQLITE_OK; char *zErr = 0; Table *pTab; Parse *pParse = 0; Incrblob *pBlob = 0; #ifdef SQLITE_ENABLE_API_ARMOR if( ppBlob==0 ){ return SQLITE_MISUSE_BKPT; } #endif *ppBlob = 0; #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) || zTable==0 ){ return SQLITE_MISUSE_BKPT; } #endif flags = !!flags; /* flags = (flags ? 1 : 0); */ sqlite3_mutex_enter(db->mutex); pBlob = (Incrblob *)sqlite3DbMallocZero(db, sizeof(Incrblob)); if( !pBlob ) goto blob_open_out; pParse = sqlite3StackAllocRaw(db, sizeof(*pParse)); if( !pParse ) goto blob_open_out; |
︙ | ︙ | |||
76990 76991 76992 76993 76994 76995 76996 | return rc; } /* ** Close a blob handle that was previously created using ** sqlite3_blob_open(). */ | | | 77592 77593 77594 77595 77596 77597 77598 77599 77600 77601 77602 77603 77604 77605 77606 | return rc; } /* ** Close a blob handle that was previously created using ** sqlite3_blob_open(). */ SQLITE_API int SQLITE_STDCALL sqlite3_blob_close(sqlite3_blob *pBlob){ Incrblob *p = (Incrblob *)pBlob; int rc; sqlite3 *db; if( p ){ db = p->db; sqlite3_mutex_enter(db->mutex); |
︙ | ︙ | |||
77027 77028 77029 77030 77031 77032 77033 | sqlite3 *db; if( p==0 ) return SQLITE_MISUSE_BKPT; db = p->db; sqlite3_mutex_enter(db->mutex); v = (Vdbe*)p->pStmt; | | | 77629 77630 77631 77632 77633 77634 77635 77636 77637 77638 77639 77640 77641 77642 77643 | sqlite3 *db; if( p==0 ) return SQLITE_MISUSE_BKPT; db = p->db; sqlite3_mutex_enter(db->mutex); v = (Vdbe*)p->pStmt; if( n<0 || iOffset<0 || ((sqlite3_int64)iOffset+n)>p->nByte ){ /* Request is out of range. Return a transient error. */ rc = SQLITE_ERROR; }else if( v==0 ){ /* If there is no statement handle, then the blob-handle has ** already been invalidated. Return SQLITE_ABORT in this case. */ rc = SQLITE_ABORT; |
︙ | ︙ | |||
77059 77060 77061 77062 77063 77064 77065 | sqlite3_mutex_leave(db->mutex); return rc; } /* ** Read data from a blob handle. */ | | | | | | 77661 77662 77663 77664 77665 77666 77667 77668 77669 77670 77671 77672 77673 77674 77675 77676 77677 77678 77679 77680 77681 77682 77683 77684 77685 77686 77687 77688 77689 77690 77691 77692 77693 77694 77695 77696 77697 77698 77699 77700 77701 77702 77703 77704 77705 77706 77707 | sqlite3_mutex_leave(db->mutex); return rc; } /* ** Read data from a blob handle. */ SQLITE_API int SQLITE_STDCALL sqlite3_blob_read(sqlite3_blob *pBlob, void *z, int n, int iOffset){ return blobReadWrite(pBlob, z, n, iOffset, sqlite3BtreeData); } /* ** Write data to a blob handle. */ SQLITE_API int SQLITE_STDCALL sqlite3_blob_write(sqlite3_blob *pBlob, const void *z, int n, int iOffset){ return blobReadWrite(pBlob, (void *)z, n, iOffset, sqlite3BtreePutData); } /* ** Query a blob handle for the size of the data. ** ** The Incrblob.nByte field is fixed for the lifetime of the Incrblob ** so no mutex is required for access. */ SQLITE_API int SQLITE_STDCALL sqlite3_blob_bytes(sqlite3_blob *pBlob){ Incrblob *p = (Incrblob *)pBlob; return (p && p->pStmt) ? p->nByte : 0; } /* ** Move an existing blob handle to point to a different row of the same ** database table. ** ** If an error occurs, or if the specified row does not exist or does not ** contain a blob or text value, then an error code is returned and the ** database handle error code and message set. If this happens, then all ** subsequent calls to sqlite3_blob_xxx() functions (except blob_close()) ** immediately return SQLITE_ABORT. */ SQLITE_API int SQLITE_STDCALL sqlite3_blob_reopen(sqlite3_blob *pBlob, sqlite3_int64 iRow){ int rc; Incrblob *p = (Incrblob *)pBlob; sqlite3 *db; if( p==0 ) return SQLITE_MISUSE_BKPT; db = p->db; sqlite3_mutex_enter(db->mutex); |
︙ | ︙ | |||
78276 78277 78278 78279 78280 78281 78282 78283 78284 78285 78286 78287 78288 78289 | */ static int vdbeSorterOpenTempFile( sqlite3 *db, /* Database handle doing sort */ i64 nExtend, /* Attempt to extend file to this size */ sqlite3_file **ppFd ){ int rc; rc = sqlite3OsOpenMalloc(db->pVfs, 0, ppFd, SQLITE_OPEN_TEMP_JOURNAL | SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE | SQLITE_OPEN_EXCLUSIVE | SQLITE_OPEN_DELETEONCLOSE, &rc ); if( rc==SQLITE_OK ){ i64 max = SQLITE_MAX_MMAP_SIZE; | > | 78878 78879 78880 78881 78882 78883 78884 78885 78886 78887 78888 78889 78890 78891 78892 | */ static int vdbeSorterOpenTempFile( sqlite3 *db, /* Database handle doing sort */ i64 nExtend, /* Attempt to extend file to this size */ sqlite3_file **ppFd ){ int rc; if( sqlite3FaultSim(202) ) return SQLITE_IOERR_ACCESS; rc = sqlite3OsOpenMalloc(db->pVfs, 0, ppFd, SQLITE_OPEN_TEMP_JOURNAL | SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE | SQLITE_OPEN_EXCLUSIVE | SQLITE_OPEN_DELETEONCLOSE, &rc ); if( rc==SQLITE_OK ){ i64 max = SQLITE_MAX_MMAP_SIZE; |
︙ | ︙ | |||
80571 80572 80573 80574 80575 80576 80577 | ** schema. If not found, pSchema will remain NULL and nothing will match ** resulting in an appropriate error message toward the end of this routine */ if( zDb ){ testcase( pNC->ncFlags & NC_PartIdx ); testcase( pNC->ncFlags & NC_IsCheck ); if( (pNC->ncFlags & (NC_PartIdx|NC_IsCheck))!=0 ){ | | | | > | 81174 81175 81176 81177 81178 81179 81180 81181 81182 81183 81184 81185 81186 81187 81188 81189 81190 81191 | ** schema. If not found, pSchema will remain NULL and nothing will match ** resulting in an appropriate error message toward the end of this routine */ if( zDb ){ testcase( pNC->ncFlags & NC_PartIdx ); testcase( pNC->ncFlags & NC_IsCheck ); if( (pNC->ncFlags & (NC_PartIdx|NC_IsCheck))!=0 ){ /* Silently ignore database qualifiers inside CHECK constraints and ** partial indices. Do not raise errors because that might break ** legacy and because it does not hurt anything to just ignore the ** database name. */ zDb = 0; }else{ for(i=0; i<db->nDb; i++){ assert( db->aDb[i].zName ); if( sqlite3StrICmp(db->aDb[i].zName,zDb)==0 ){ pSchema = db->aDb[i].pSchema; break; |
︙ | ︙ | |||
80644 80645 80646 80647 80648 80649 80650 | break; } } } if( pMatch ){ pExpr->iTable = pMatch->iCursor; pExpr->pTab = pMatch->pTab; | > | | 81248 81249 81250 81251 81252 81253 81254 81255 81256 81257 81258 81259 81260 81261 81262 81263 | break; } } } if( pMatch ){ pExpr->iTable = pMatch->iCursor; pExpr->pTab = pMatch->pTab; /* RIGHT JOIN not (yet) supported */ assert( (pMatch->jointype & JT_RIGHT)==0 ); if( (pMatch->jointype & JT_LEFT)!=0 ){ ExprSetProperty(pExpr, EP_CanBeNull); } pSchema = pExpr->pTab->pSchema; } } /* if( pSrcList ) */ |
︙ | ︙ | |||
80965 80966 80967 80968 80969 80970 80971 | pExpr->op = TK_COLUMN; pExpr->pTab = pItem->pTab; pExpr->iTable = pItem->iCursor; pExpr->iColumn = -1; pExpr->affinity = SQLITE_AFF_INTEGER; break; } | | > | 81570 81571 81572 81573 81574 81575 81576 81577 81578 81579 81580 81581 81582 81583 81584 81585 | pExpr->op = TK_COLUMN; pExpr->pTab = pItem->pTab; pExpr->iTable = pItem->iCursor; pExpr->iColumn = -1; pExpr->affinity = SQLITE_AFF_INTEGER; break; } #endif /* defined(SQLITE_ENABLE_UPDATE_DELETE_LIMIT) && !defined(SQLITE_OMIT_SUBQUERY) */ /* A lone identifier is the name of a column. */ case TK_ID: { return lookupName(pParse, 0, 0, pExpr->u.zToken, pNC, pExpr); } |
︙ | ︙ | |||
81030 81031 81032 81033 81034 81035 81036 | }else{ is_agg = pDef->xFunc==0; if( pDef->funcFlags & SQLITE_FUNC_UNLIKELY ){ ExprSetProperty(pExpr, EP_Unlikely|EP_Skip); if( n==2 ){ pExpr->iTable = exprProbability(pList->a[1].pExpr); if( pExpr->iTable<0 ){ | > | | | | | | | | | | | > > | 81636 81637 81638 81639 81640 81641 81642 81643 81644 81645 81646 81647 81648 81649 81650 81651 81652 81653 81654 81655 81656 81657 81658 81659 81660 81661 81662 81663 81664 81665 81666 81667 81668 81669 81670 81671 81672 81673 81674 81675 81676 81677 81678 81679 81680 81681 81682 | }else{ is_agg = pDef->xFunc==0; if( pDef->funcFlags & SQLITE_FUNC_UNLIKELY ){ ExprSetProperty(pExpr, EP_Unlikely|EP_Skip); if( n==2 ){ pExpr->iTable = exprProbability(pList->a[1].pExpr); if( pExpr->iTable<0 ){ sqlite3ErrorMsg(pParse, "second argument to likelihood() must be a " "constant between 0.0 and 1.0"); pNC->nErr++; } }else{ /* EVIDENCE-OF: R-61304-29449 The unlikely(X) function is ** equivalent to likelihood(X, 0.0625). ** EVIDENCE-OF: R-01283-11636 The unlikely(X) function is ** short-hand for likelihood(X,0.0625). ** EVIDENCE-OF: R-36850-34127 The likely(X) function is short-hand ** for likelihood(X,0.9375). ** EVIDENCE-OF: R-53436-40973 The likely(X) function is equivalent ** to likelihood(X,0.9375). */ /* TUNING: unlikely() probability is 0.0625. likely() is 0.9375 */ pExpr->iTable = pDef->zName[0]=='u' ? 8388608 : 125829120; } } #ifndef SQLITE_OMIT_AUTHORIZATION auth = sqlite3AuthCheck(pParse, SQLITE_FUNCTION, 0, pDef->zName, 0); if( auth!=SQLITE_OK ){ if( auth==SQLITE_DENY ){ sqlite3ErrorMsg(pParse, "not authorized to use function: %s", pDef->zName); pNC->nErr++; } pExpr->op = TK_NULL; return WRC_Prune; } #endif if( pDef->funcFlags & SQLITE_FUNC_CONSTANT ){ ExprSetProperty(pExpr,EP_ConstFunc); } } if( is_agg && (pNC->ncFlags & NC_AllowAgg)==0 ){ sqlite3ErrorMsg(pParse, "misuse of aggregate function %.*s()", nId,zId); pNC->nErr++; is_agg = 0; }else if( no_such_func && pParse->db->init.busy==0 ){ sqlite3ErrorMsg(pParse, "no such function: %.*s", nId, zId); |
︙ | ︙ | |||
81370 81371 81372 81373 81374 81375 81376 | assert( pEList!=0 ); /* sqlite3SelectNew() guarantees this */ for(i=0, pItem=pOrderBy->a; i<pOrderBy->nExpr; i++, pItem++){ if( pItem->u.x.iOrderByCol ){ if( pItem->u.x.iOrderByCol>pEList->nExpr ){ resolveOutOfRangeError(pParse, zType, i+1, pEList->nExpr); return 1; } | | > | 81979 81980 81981 81982 81983 81984 81985 81986 81987 81988 81989 81990 81991 81992 81993 81994 | assert( pEList!=0 ); /* sqlite3SelectNew() guarantees this */ for(i=0, pItem=pOrderBy->a; i<pOrderBy->nExpr; i++, pItem++){ if( pItem->u.x.iOrderByCol ){ if( pItem->u.x.iOrderByCol>pEList->nExpr ){ resolveOutOfRangeError(pParse, zType, i+1, pEList->nExpr); return 1; } resolveAlias(pParse, pEList, pItem->u.x.iOrderByCol-1, pItem->pExpr, zType,0); } } return 0; } /* ** pOrderBy is an ORDER BY or GROUP BY clause in SELECT statement pSelect. |
︙ | ︙ | |||
81860 81861 81862 81863 81864 81865 81866 | ** ** If a memory allocation error occurs, that fact is recorded in pParse->db ** and the pExpr parameter is returned unchanged. */ SQLITE_PRIVATE Expr *sqlite3ExprAddCollateToken( Parse *pParse, /* Parsing context */ Expr *pExpr, /* Add the "COLLATE" clause to this expression */ | | > | | | 82470 82471 82472 82473 82474 82475 82476 82477 82478 82479 82480 82481 82482 82483 82484 82485 82486 82487 82488 82489 82490 82491 82492 82493 82494 82495 82496 82497 82498 82499 82500 82501 82502 | ** ** If a memory allocation error occurs, that fact is recorded in pParse->db ** and the pExpr parameter is returned unchanged. */ SQLITE_PRIVATE Expr *sqlite3ExprAddCollateToken( Parse *pParse, /* Parsing context */ Expr *pExpr, /* Add the "COLLATE" clause to this expression */ const Token *pCollName, /* Name of collating sequence */ int dequote /* True to dequote pCollName */ ){ if( pCollName->n>0 ){ Expr *pNew = sqlite3ExprAlloc(pParse->db, TK_COLLATE, pCollName, dequote); if( pNew ){ pNew->pLeft = pExpr; pNew->flags |= EP_Collate|EP_Skip; pExpr = pNew; } } return pExpr; } SQLITE_PRIVATE Expr *sqlite3ExprAddCollateString(Parse *pParse, Expr *pExpr, const char *zC){ Token s; assert( zC!=0 ); s.z = zC; s.n = sqlite3Strlen30(s.z); return sqlite3ExprAddCollateToken(pParse, pExpr, &s, 0); } /* ** Skip over any TK_COLLATE or TK_AS operators and any unlikely() ** or likelihood() function at the root of an expression. */ SQLITE_PRIVATE Expr *sqlite3ExprSkipCollate(Expr *pExpr){ |
︙ | ︙ | |||
81923 81924 81925 81926 81927 81928 81929 | p = p->pLeft; continue; } if( op==TK_COLLATE || (op==TK_REGISTER && p->op2==TK_COLLATE) ){ pColl = sqlite3GetCollSeq(pParse, ENC(db), 0, p->u.zToken); break; } | < | > | | > > > > > > > > > > > > > > > | 82534 82535 82536 82537 82538 82539 82540 82541 82542 82543 82544 82545 82546 82547 82548 82549 82550 82551 82552 82553 82554 82555 82556 82557 82558 82559 82560 82561 82562 82563 82564 82565 82566 82567 82568 82569 82570 82571 82572 82573 82574 82575 82576 82577 82578 82579 82580 | p = p->pLeft; continue; } if( op==TK_COLLATE || (op==TK_REGISTER && p->op2==TK_COLLATE) ){ pColl = sqlite3GetCollSeq(pParse, ENC(db), 0, p->u.zToken); break; } if( (op==TK_AGG_COLUMN || op==TK_COLUMN || op==TK_REGISTER || op==TK_TRIGGER) && p->pTab!=0 ){ /* op==TK_REGISTER && p->pTab!=0 happens when pExpr was originally ** a TK_COLUMN but was previously evaluated and cached in a register */ int j = p->iColumn; if( j>=0 ){ const char *zColl = p->pTab->aCol[j].zColl; pColl = sqlite3FindCollSeq(db, ENC(db), zColl, 0); } break; } if( p->flags & EP_Collate ){ if( p->pLeft && (p->pLeft->flags & EP_Collate)!=0 ){ p = p->pLeft; }else{ Expr *pNext = p->pRight; /* The Expr.x union is never used at the same time as Expr.pRight */ assert( p->x.pList==0 || p->pRight==0 ); /* p->flags holds EP_Collate and p->pLeft->flags does not. And ** p->x.pSelect cannot. So if p->x.pLeft exists, it must hold at ** least one EP_Collate. Thus the following two ALWAYS. */ if( p->x.pList!=0 && ALWAYS(!ExprHasProperty(p, EP_xIsSelect)) ){ int i; for(i=0; ALWAYS(i<p->x.pList->nExpr); i++){ if( ExprHasProperty(p->x.pList->a[i].pExpr, EP_Collate) ){ pNext = p->x.pList->a[i].pExpr; break; } } } p = pNext; } }else{ break; } } if( sqlite3CheckCollSeq(pParse, pColl) ){ pColl = 0; |
︙ | ︙ | |||
82146 82147 82148 82149 82150 82151 82152 82153 82154 82155 82156 82157 82158 82159 | /* ** Set the Expr.nHeight variable in the structure passed as an ** argument. An expression with no children, Expr.pList or ** Expr.pSelect member has a height of 1. Any other expression ** has a height equal to the maximum height of any other ** referenced Expr plus one. */ static void exprSetHeight(Expr *p){ int nHeight = 0; heightOfExpr(p->pLeft, &nHeight); heightOfExpr(p->pRight, &nHeight); if( ExprHasProperty(p, EP_xIsSelect) ){ heightOfSelect(p->x.pSelect, &nHeight); | > > > | > > > > | > | > > > > > > > > > | | 82772 82773 82774 82775 82776 82777 82778 82779 82780 82781 82782 82783 82784 82785 82786 82787 82788 82789 82790 82791 82792 82793 82794 82795 82796 82797 82798 82799 82800 82801 82802 82803 82804 82805 82806 82807 82808 82809 82810 82811 82812 82813 82814 82815 82816 82817 82818 82819 82820 82821 82822 82823 82824 82825 82826 82827 82828 82829 82830 82831 82832 82833 82834 82835 82836 | /* ** Set the Expr.nHeight variable in the structure passed as an ** argument. An expression with no children, Expr.pList or ** Expr.pSelect member has a height of 1. Any other expression ** has a height equal to the maximum height of any other ** referenced Expr plus one. ** ** Also propagate EP_Propagate flags up from Expr.x.pList to Expr.flags, ** if appropriate. */ static void exprSetHeight(Expr *p){ int nHeight = 0; heightOfExpr(p->pLeft, &nHeight); heightOfExpr(p->pRight, &nHeight); if( ExprHasProperty(p, EP_xIsSelect) ){ heightOfSelect(p->x.pSelect, &nHeight); }else if( p->x.pList ){ heightOfExprList(p->x.pList, &nHeight); p->flags |= EP_Propagate & sqlite3ExprListFlags(p->x.pList); } p->nHeight = nHeight + 1; } /* ** Set the Expr.nHeight variable using the exprSetHeight() function. If ** the height is greater than the maximum allowed expression depth, ** leave an error in pParse. ** ** Also propagate all EP_Propagate flags from the Expr.x.pList into ** Expr.flags. */ SQLITE_PRIVATE void sqlite3ExprSetHeightAndFlags(Parse *pParse, Expr *p){ if( pParse->nErr ) return; exprSetHeight(p); sqlite3ExprCheckHeight(pParse, p->nHeight); } /* ** Return the maximum height of any expression tree referenced ** by the select statement passed as an argument. */ SQLITE_PRIVATE int sqlite3SelectExprHeight(Select *p){ int nHeight = 0; heightOfSelect(p, &nHeight); return nHeight; } #else /* ABOVE: Height enforcement enabled. BELOW: Height enforcement off */ /* ** Propagate all EP_Propagate flags from the Expr.x.pList into ** Expr.flags. */ SQLITE_PRIVATE void sqlite3ExprSetHeightAndFlags(Parse *pParse, Expr *p){ if( p && p->x.pList && !ExprHasProperty(p, EP_xIsSelect) ){ p->flags |= EP_Propagate & sqlite3ExprListFlags(p->x.pList); } } #define exprSetHeight(y) #endif /* SQLITE_MAX_EXPR_DEPTH>0 */ /* ** This routine is the core allocator for Expr nodes. ** ** Construct a new expression node and return a pointer to it. Memory ** for this node and for the pToken argument is a single allocation |
︙ | ︙ | |||
82281 82282 82283 82284 82285 82286 82287 | if( pRoot==0 ){ assert( db->mallocFailed ); sqlite3ExprDelete(db, pLeft); sqlite3ExprDelete(db, pRight); }else{ if( pRight ){ pRoot->pRight = pRight; | | | | 82924 82925 82926 82927 82928 82929 82930 82931 82932 82933 82934 82935 82936 82937 82938 82939 82940 82941 82942 | if( pRoot==0 ){ assert( db->mallocFailed ); sqlite3ExprDelete(db, pLeft); sqlite3ExprDelete(db, pRight); }else{ if( pRight ){ pRoot->pRight = pRight; pRoot->flags |= EP_Propagate & pRight->flags; } if( pLeft ){ pRoot->pLeft = pLeft; pRoot->flags |= EP_Propagate & pLeft->flags; } exprSetHeight(pRoot); } } /* ** Allocate an Expr node which joins as many as two subtrees. |
︙ | ︙ | |||
82385 82386 82387 82388 82389 82390 82391 | pNew = sqlite3ExprAlloc(db, TK_FUNCTION, pToken, 1); if( pNew==0 ){ sqlite3ExprListDelete(db, pList); /* Avoid memory leak when malloc fails */ return 0; } pNew->x.pList = pList; assert( !ExprHasProperty(pNew, EP_xIsSelect) ); | | | 83028 83029 83030 83031 83032 83033 83034 83035 83036 83037 83038 83039 83040 83041 83042 | pNew = sqlite3ExprAlloc(db, TK_FUNCTION, pToken, 1); if( pNew==0 ){ sqlite3ExprListDelete(db, pList); /* Avoid memory leak when malloc fails */ return 0; } pNew->x.pList = pList; assert( !ExprHasProperty(pNew, EP_xIsSelect) ); sqlite3ExprSetHeightAndFlags(pParse, pNew); return pNew; } /* ** Assign a variable number to an expression that encodes a wildcard ** in the original SQL statement. ** |
︙ | ︙ | |||
82999 83000 83001 83002 83003 83004 83005 83006 83007 83008 83009 83010 83011 83012 | sqlite3ExprDelete(db, pItem->pExpr); sqlite3DbFree(db, pItem->zName); sqlite3DbFree(db, pItem->zSpan); } sqlite3DbFree(db, pList->a); sqlite3DbFree(db, pList); } /* ** These routines are Walker callbacks used to check expressions to ** see if they are "constant" for some definition of constant. The ** Walker.eCode value determines the type of "constant" we are looking ** for. ** | > > > > > > > > > > > > > > > | 83642 83643 83644 83645 83646 83647 83648 83649 83650 83651 83652 83653 83654 83655 83656 83657 83658 83659 83660 83661 83662 83663 83664 83665 83666 83667 83668 83669 83670 | sqlite3ExprDelete(db, pItem->pExpr); sqlite3DbFree(db, pItem->zName); sqlite3DbFree(db, pItem->zSpan); } sqlite3DbFree(db, pList->a); sqlite3DbFree(db, pList); } /* ** Return the bitwise-OR of all Expr.flags fields in the given ** ExprList. */ SQLITE_PRIVATE u32 sqlite3ExprListFlags(const ExprList *pList){ int i; u32 m = 0; if( pList ){ for(i=0; i<pList->nExpr; i++){ m |= pList->a[i].pExpr->flags; } } return m; } /* ** These routines are Walker callbacks used to check expressions to ** see if they are "constant" for some definition of constant. The ** Walker.eCode value determines the type of "constant" we are looking ** for. ** |
︙ | ︙ | |||
83040 83041 83042 83043 83044 83045 83046 | } switch( pExpr->op ){ /* Consider functions to be constant if all their arguments are constant ** and either pWalker->eCode==4 or 5 or the function has the ** SQLITE_FUNC_CONST flag. */ case TK_FUNCTION: | | | 83698 83699 83700 83701 83702 83703 83704 83705 83706 83707 83708 83709 83710 83711 83712 | } switch( pExpr->op ){ /* Consider functions to be constant if all their arguments are constant ** and either pWalker->eCode==4 or 5 or the function has the ** SQLITE_FUNC_CONST flag. */ case TK_FUNCTION: if( pWalker->eCode>=4 || ExprHasProperty(pExpr,EP_ConstFunc) ){ return WRC_Continue; }else{ pWalker->eCode = 0; return WRC_Abort; } case TK_ID: case TK_COLUMN: |
︙ | ︙ | |||
84047 84048 84049 84050 84051 84052 84053 | */ SQLITE_PRIVATE void sqlite3ExprCacheStore(Parse *pParse, int iTab, int iCol, int iReg){ int i; int minLru; int idxLru; struct yColCache *p; | | > | 84705 84706 84707 84708 84709 84710 84711 84712 84713 84714 84715 84716 84717 84718 84719 84720 | */ SQLITE_PRIVATE void sqlite3ExprCacheStore(Parse *pParse, int iTab, int iCol, int iReg){ int i; int minLru; int idxLru; struct yColCache *p; /* Unless an error has occurred, register numbers are always positive. */ assert( iReg>0 || pParse->nErr || pParse->db->mallocFailed ); assert( iCol>=-1 && iCol<32768 ); /* Finite column numbers */ /* The SQLITE_ColumnCache flag disables the column cache. This is used ** for testing only - to verify that SQLite always gets the same answer ** with and without the column cache. */ if( OptimizationDisabled(pParse->db, SQLITE_ColumnCache) ) return; |
︙ | ︙ | |||
86854 86855 86856 86857 86858 86859 86860 | } /* Ensure the default expression is something that sqlite3ValueFromExpr() ** can handle (i.e. not CURRENT_TIME etc.) */ if( pDflt ){ sqlite3_value *pVal = 0; | > | > > | 87513 87514 87515 87516 87517 87518 87519 87520 87521 87522 87523 87524 87525 87526 87527 87528 87529 87530 | } /* Ensure the default expression is something that sqlite3ValueFromExpr() ** can handle (i.e. not CURRENT_TIME etc.) */ if( pDflt ){ sqlite3_value *pVal = 0; int rc; rc = sqlite3ValueFromExpr(db, pDflt, SQLITE_UTF8, SQLITE_AFF_NONE, &pVal); assert( rc==SQLITE_OK || rc==SQLITE_NOMEM ); if( rc!=SQLITE_OK ){ db->mallocFailed = 1; return; } if( !pVal ){ sqlite3ErrorMsg(pParse, "Cannot add a column with non-constant default"); return; } |
︙ | ︙ | |||
89076 89077 89078 89079 89080 89081 89082 | zKey = (char *)sqlite3_value_blob(argv[2]); rc = sqlite3CodecAttach(db, db->nDb-1, zKey, nKey); break; case SQLITE_NULL: /* No key specified. Use the key from the main database */ sqlite3CodecGetKey(db, 0, (void**)&zKey, &nKey); | | | 89738 89739 89740 89741 89742 89743 89744 89745 89746 89747 89748 89749 89750 89751 89752 | zKey = (char *)sqlite3_value_blob(argv[2]); rc = sqlite3CodecAttach(db, db->nDb-1, zKey, nKey); break; case SQLITE_NULL: /* No key specified. Use the key from the main database */ sqlite3CodecGetKey(db, 0, (void**)&zKey, &nKey); if( nKey>0 || sqlite3BtreeGetOptimalReserve(db->aDb[0].pBt)>0 ){ rc = sqlite3CodecAttach(db, db->nDb-1, zKey, nKey); } break; } } #endif |
︙ | ︙ | |||
89539 89540 89541 89542 89543 89544 89545 | ** will return with an error. SQLITE_IGNORE means that the SQL statement ** should run but attempts to read the specified column will return NULL ** and attempts to write the column will be ignored. ** ** Setting the auth function to NULL disables this hook. The default ** setting of the auth function is NULL. */ | | | 90201 90202 90203 90204 90205 90206 90207 90208 90209 90210 90211 90212 90213 90214 90215 | ** will return with an error. SQLITE_IGNORE means that the SQL statement ** should run but attempts to read the specified column will return NULL ** and attempts to write the column will be ignored. ** ** Setting the auth function to NULL disables this hook. The default ** setting of the auth function is NULL. */ SQLITE_API int SQLITE_STDCALL sqlite3_set_authorizer( sqlite3 *db, int (*xAuth)(void*,int,const char*,const char*,const char*,const char*), void *pArg ){ #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT; #endif |
︙ | ︙ | |||
90042 90043 90044 90045 90046 90047 90048 | ** ** See also sqlite3LocateTable(). */ SQLITE_PRIVATE Table *sqlite3FindTable(sqlite3 *db, const char *zName, const char *zDatabase){ Table *p = 0; int i; | < < < < | 90704 90705 90706 90707 90708 90709 90710 90711 90712 90713 90714 90715 90716 90717 | ** ** See also sqlite3LocateTable(). */ SQLITE_PRIVATE Table *sqlite3FindTable(sqlite3 *db, const char *zName, const char *zDatabase){ Table *p = 0; int i; /* All mutexes are required for schema access. Make sure we hold them. */ assert( zDatabase!=0 || sqlite3BtreeHoldsAllMutexes(db) ); #if SQLITE_USER_AUTHENTICATION /* Only the admin user is allowed to know that the sqlite_user table ** exists */ if( db->auth.authLevel<UAUTH_Admin && sqlite3UserAuthTable(zName)!=0 ){ return 0; |
︙ | ︙ | |||
91465 91466 91467 91468 91469 91470 91471 | } pPk->nKeyCol = j; } pPk->isCovering = 1; assert( pPk!=0 ); nPk = pPk->nKeyCol; | | > > | | | | > | 92123 92124 92125 92126 92127 92128 92129 92130 92131 92132 92133 92134 92135 92136 92137 92138 92139 92140 92141 92142 92143 92144 | } pPk->nKeyCol = j; } pPk->isCovering = 1; assert( pPk!=0 ); nPk = pPk->nKeyCol; /* Make sure every column of the PRIMARY KEY is NOT NULL. (Except, ** do not enforce this for imposter tables.) */ if( !db->init.imposterTable ){ for(i=0; i<nPk; i++){ pTab->aCol[pPk->aiColumn[i]].notNull = 1; } pPk->uniqNotNull = 1; } /* The root page of the PRIMARY KEY is the table root page */ pPk->tnum = pTab->tnum; /* Update the in-memory representation of all UNIQUE indices by converting ** the final rowid column into one or more columns of the PRIMARY KEY. */ |
︙ | ︙ | |||
92918 92919 92920 92921 92922 92923 92924 92925 92926 92927 92928 92929 92930 92931 | sqlite3ErrorMsg(pParse, "conflicting ON CONFLICT clauses specified", 0); } if( pIdx->onError==OE_Default ){ pIdx->onError = pIndex->onError; } } goto exit_create_index; } } } /* Link the new Index structure to its table and to the other ** in-memory database structures. | > | 93579 93580 93581 93582 93583 93584 93585 93586 93587 93588 93589 93590 93591 93592 93593 | sqlite3ErrorMsg(pParse, "conflicting ON CONFLICT clauses specified", 0); } if( pIdx->onError==OE_Default ){ pIdx->onError = pIndex->onError; } } pRet = pIdx; goto exit_create_index; } } } /* Link the new Index structure to its table and to the other ** in-memory database structures. |
︙ | ︙ | |||
94704 94705 94706 94707 94708 94709 94710 | pWhereRowid = sqlite3PExpr(pParse, TK_ROW, 0, 0, 0); if( pWhereRowid == 0 ) goto limit_where_cleanup_1; pInClause = sqlite3PExpr(pParse, TK_IN, pWhereRowid, 0, 0); if( pInClause == 0 ) goto limit_where_cleanup_1; pInClause->x.pSelect = pSelect; pInClause->flags |= EP_xIsSelect; | | | 95366 95367 95368 95369 95370 95371 95372 95373 95374 95375 95376 95377 95378 95379 95380 | pWhereRowid = sqlite3PExpr(pParse, TK_ROW, 0, 0, 0); if( pWhereRowid == 0 ) goto limit_where_cleanup_1; pInClause = sqlite3PExpr(pParse, TK_IN, pWhereRowid, 0, 0); if( pInClause == 0 ) goto limit_where_cleanup_1; pInClause->x.pSelect = pSelect; pInClause->flags |= EP_xIsSelect; sqlite3ExprSetHeightAndFlags(pParse, pInClause); return pInClause; /* something went wrong. clean up anything allocated. */ limit_where_cleanup_1: sqlite3SelectDelete(pParse->db, pSelect); return 0; |
︙ | ︙ | |||
95377 95378 95379 95380 95381 95382 95383 | /* #include <stdlib.h> */ /* #include <assert.h> */ /* ** Return the collating function associated with a function. */ static CollSeq *sqlite3GetFuncCollSeq(sqlite3_context *context){ | > > | | 96039 96040 96041 96042 96043 96044 96045 96046 96047 96048 96049 96050 96051 96052 96053 96054 96055 | /* #include <stdlib.h> */ /* #include <assert.h> */ /* ** Return the collating function associated with a function. */ static CollSeq *sqlite3GetFuncCollSeq(sqlite3_context *context){ VdbeOp *pOp; assert( context->pVdbe!=0 ); pOp = &context->pVdbe->aOp[context->iOp-1]; assert( pOp->opcode==OP_CollSeq ); assert( pOp->p4type==P4_COLLSEQ ); return pOp->p4.pColl; } /* ** Indicate that the accumulator load should be skipped on this |
︙ | ︙ | |||
95646 95647 95648 95649 95650 95651 95652 95653 95654 95655 95656 95657 95658 95659 | len = 0; if( p1<0 ){ for(z2=z; *z2; len++){ SQLITE_SKIP_UTF8(z2); } } } if( argc==3 ){ p2 = sqlite3_value_int(argv[2]); if( p2<0 ){ p2 = -p2; negP2 = 1; } }else{ | > > > > > > > > | 96310 96311 96312 96313 96314 96315 96316 96317 96318 96319 96320 96321 96322 96323 96324 96325 96326 96327 96328 96329 96330 96331 | len = 0; if( p1<0 ){ for(z2=z; *z2; len++){ SQLITE_SKIP_UTF8(z2); } } } #ifdef SQLITE_SUBSTR_COMPATIBILITY /* If SUBSTR_COMPATIBILITY is defined then substr(X,0,N) work the same as ** as substr(X,1,N) - it returns the first N characters of X. This ** is essentially a back-out of the bug-fix in check-in [5fc125d362df4b8] ** from 2009-02-02 for compatibility of applications that exploited the ** old buggy behavior. */ if( p1==0 ) p1 = 1; /* <rdar://problem/6778339> */ #endif if( argc==3 ){ p2 = sqlite3_value_int(argv[2]); if( p2<0 ){ p2 = -p2; negP2 = 1; } }else{ |
︙ | ︙ | |||
96107 96108 96109 96110 96111 96112 96113 | } return *zString==0; } /* ** The sqlite3_strglob() interface. */ | | | 96779 96780 96781 96782 96783 96784 96785 96786 96787 96788 96789 96790 96791 96792 96793 | } return *zString==0; } /* ** The sqlite3_strglob() interface. */ SQLITE_API int SQLITE_STDCALL sqlite3_strglob(const char *zGlobPattern, const char *zString){ return patternCompare((u8*)zGlobPattern, (u8*)zString, &globInfo, 0)==0; } /* ** Count the number of times that the LIKE operator (or GLOB which is ** just a variation of LIKE) gets called. This is used for testing ** only. |
︙ | ︙ | |||
96997 96998 96999 97000 97001 97002 97003 97004 97005 97006 97007 97008 97009 97010 | /* ** pExpr points to an expression which implements a function. If ** it is appropriate to apply the LIKE optimization to that function ** then set aWc[0] through aWc[2] to the wildcard characters and ** return TRUE. If the function is not a LIKE-style function then ** return FALSE. */ SQLITE_PRIVATE int sqlite3IsLikeFunction(sqlite3 *db, Expr *pExpr, int *pIsNocase, char *aWc){ FuncDef *pDef; if( pExpr->op!=TK_FUNCTION || !pExpr->x.pList || pExpr->x.pList->nExpr!=2 ){ | > > > > > | 97669 97670 97671 97672 97673 97674 97675 97676 97677 97678 97679 97680 97681 97682 97683 97684 97685 97686 97687 | /* ** pExpr points to an expression which implements a function. If ** it is appropriate to apply the LIKE optimization to that function ** then set aWc[0] through aWc[2] to the wildcard characters and ** return TRUE. If the function is not a LIKE-style function then ** return FALSE. ** ** *pIsNocase is set to true if uppercase and lowercase are equivalent for ** the function (default for LIKE). If the function makes the distinction ** between uppercase and lowercase (as does GLOB) then *pIsNocase is set to ** false. */ SQLITE_PRIVATE int sqlite3IsLikeFunction(sqlite3 *db, Expr *pExpr, int *pIsNocase, char *aWc){ FuncDef *pDef; if( pExpr->op!=TK_FUNCTION || !pExpr->x.pList || pExpr->x.pList->nExpr!=2 ){ |
︙ | ︙ | |||
100597 100598 100599 100600 100601 100602 100603 | ** malloc() and make *pzErrMsg point to that message. ** ** If the SQL is a query, then for each row in the query result ** the xCallback() function is called. pArg becomes the first ** argument to xCallback(). If xCallback=NULL then no callback ** is invoked, even for queries. */ | | | 101274 101275 101276 101277 101278 101279 101280 101281 101282 101283 101284 101285 101286 101287 101288 | ** malloc() and make *pzErrMsg point to that message. ** ** If the SQL is a query, then for each row in the query result ** the xCallback() function is called. pArg becomes the first ** argument to xCallback(). If xCallback=NULL then no callback ** is invoked, even for queries. */ SQLITE_API int SQLITE_STDCALL sqlite3_exec( sqlite3 *db, /* The database on which the SQL executes */ const char *zSql, /* The SQL to be executed */ sqlite3_callback xCallback, /* Invoke this callback routine */ void *pArg, /* First argument to xCallback() */ char **pzErrMsg /* Write error messages here */ ){ int rc = SQLITE_OK; /* Return code */ |
︙ | ︙ | |||
101792 101793 101794 101795 101796 101797 101798 | } sqlite3DbFree(db, db->aExtension); db->aExtension = aHandle; db->aExtension[db->nExtension++] = handle; return SQLITE_OK; } | | | 102469 102470 102471 102472 102473 102474 102475 102476 102477 102478 102479 102480 102481 102482 102483 | } sqlite3DbFree(db, db->aExtension); db->aExtension = aHandle; db->aExtension[db->nExtension++] = handle; return SQLITE_OK; } SQLITE_API int SQLITE_STDCALL sqlite3_load_extension( sqlite3 *db, /* Load the extension into this database connection */ const char *zFile, /* Name of the shared library containing extension */ const char *zProc, /* Entry point. Use "sqlite3_extension_init" if 0 */ char **pzErrMsg /* Put error message here if not 0 */ ){ int rc; sqlite3_mutex_enter(db->mutex); |
︙ | ︙ | |||
101823 101824 101825 101826 101827 101828 101829 | sqlite3DbFree(db, db->aExtension); } /* ** Enable or disable extension loading. Extension loading is disabled by ** default so as not to open security holes in older applications. */ | | | 102500 102501 102502 102503 102504 102505 102506 102507 102508 102509 102510 102511 102512 102513 102514 | sqlite3DbFree(db, db->aExtension); } /* ** Enable or disable extension loading. Extension loading is disabled by ** default so as not to open security holes in older applications. */ SQLITE_API int SQLITE_STDCALL sqlite3_enable_load_extension(sqlite3 *db, int onoff){ sqlite3_mutex_enter(db->mutex); if( onoff ){ db->flags |= SQLITE_LoadExtension; }else{ db->flags &= ~SQLITE_LoadExtension; } sqlite3_mutex_leave(db->mutex); |
︙ | ︙ | |||
101880 101881 101882 101883 101884 101885 101886 | #endif /* ** Register a statically linked extension that is automatically ** loaded by every new database connection. */ | | | 102557 102558 102559 102560 102561 102562 102563 102564 102565 102566 102567 102568 102569 102570 102571 | #endif /* ** Register a statically linked extension that is automatically ** loaded by every new database connection. */ SQLITE_API int SQLITE_STDCALL sqlite3_auto_extension(void (*xInit)(void)){ int rc = SQLITE_OK; #ifndef SQLITE_OMIT_AUTOINIT rc = sqlite3_initialize(); if( rc ){ return rc; }else #endif |
︙ | ︙ | |||
101925 101926 101927 101928 101929 101930 101931 | ** set of routines that is invoked for each new database connection, if it ** is currently on the list. If xInit is not on the list, then this ** routine is a no-op. ** ** Return 1 if xInit was found on the list and removed. Return 0 if xInit ** was not on the list. */ | | | 102602 102603 102604 102605 102606 102607 102608 102609 102610 102611 102612 102613 102614 102615 102616 | ** set of routines that is invoked for each new database connection, if it ** is currently on the list. If xInit is not on the list, then this ** routine is a no-op. ** ** Return 1 if xInit was found on the list and removed. Return 0 if xInit ** was not on the list. */ SQLITE_API int SQLITE_STDCALL sqlite3_cancel_auto_extension(void (*xInit)(void)){ #if SQLITE_THREADSAFE sqlite3_mutex *mutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER); #endif int i; int n = 0; wsdAutoextInit; sqlite3_mutex_enter(mutex); |
︙ | ︙ | |||
101948 101949 101950 101951 101952 101953 101954 | sqlite3_mutex_leave(mutex); return n; } /* ** Reset the automatic extension loading mechanism. */ | | | 102625 102626 102627 102628 102629 102630 102631 102632 102633 102634 102635 102636 102637 102638 102639 | sqlite3_mutex_leave(mutex); return n; } /* ** Reset the automatic extension loading mechanism. */ SQLITE_API void SQLITE_STDCALL sqlite3_reset_auto_extension(void){ #ifndef SQLITE_OMIT_AUTOINIT if( sqlite3_initialize()==SQLITE_OK ) #endif { #if SQLITE_THREADSAFE sqlite3_mutex *mutex = sqlite3MutexAlloc(SQLITE_MUTEX_STATIC_MASTER); #endif |
︙ | ︙ | |||
102030 102031 102032 102033 102034 102035 102036 | # define SQLITE_ENABLE_LOCKING_STYLE 1 # else # define SQLITE_ENABLE_LOCKING_STYLE 0 # endif #endif /*************************************************************************** | > | | > > | > > > > | | | 102707 102708 102709 102710 102711 102712 102713 102714 102715 102716 102717 102718 102719 102720 102721 102722 102723 102724 102725 102726 102727 102728 102729 102730 102731 102732 | # define SQLITE_ENABLE_LOCKING_STYLE 1 # else # define SQLITE_ENABLE_LOCKING_STYLE 0 # endif #endif /*************************************************************************** ** The "pragma.h" include file is an automatically generated file that ** that includes the PragType_XXXX macro definitions and the aPragmaName[] ** object. This ensures that the aPragmaName[] table is arranged in ** lexicographical order to facility a binary search of the pragma name. ** Do not edit pragma.h directly. Edit and rerun the script in at ** ../tool/mkpragmatab.tcl. */ /************** Include pragma.h in the middle of pragma.c *******************/ /************** Begin file pragma.h ******************************************/ /* DO NOT EDIT! ** This file is automatically generated by the script at ** ../tool/mkpragmatab.tcl. To update the set of pragmas, edit ** that script and rerun it. */ #define PragTyp_HEADER_VALUE 0 #define PragTyp_AUTO_VACUUM 1 #define PragTyp_FLAG 2 #define PragTyp_BUSY_TIMEOUT 3 #define PragTyp_CACHE_SIZE 4 #define PragTyp_CASE_SENSITIVE_LIKE 5 |
︙ | ︙ | |||
102269 102270 102271 102272 102273 102274 102275 102276 102277 102278 102279 102280 102281 102282 | /* ePragTyp: */ PragTyp_INDEX_INFO, /* ePragFlag: */ PragFlag_NeedSchema, /* iArg: */ 0 }, { /* zName: */ "index_list", /* ePragTyp: */ PragTyp_INDEX_LIST, /* ePragFlag: */ PragFlag_NeedSchema, /* iArg: */ 0 }, #endif #if !defined(SQLITE_OMIT_INTEGRITY_CHECK) { /* zName: */ "integrity_check", /* ePragTyp: */ PragTyp_INTEGRITY_CHECK, /* ePragFlag: */ PragFlag_NeedSchema, /* iArg: */ 0 }, #endif | > > > > | 102953 102954 102955 102956 102957 102958 102959 102960 102961 102962 102963 102964 102965 102966 102967 102968 102969 102970 | /* ePragTyp: */ PragTyp_INDEX_INFO, /* ePragFlag: */ PragFlag_NeedSchema, /* iArg: */ 0 }, { /* zName: */ "index_list", /* ePragTyp: */ PragTyp_INDEX_LIST, /* ePragFlag: */ PragFlag_NeedSchema, /* iArg: */ 0 }, { /* zName: */ "index_xinfo", /* ePragTyp: */ PragTyp_INDEX_INFO, /* ePragFlag: */ PragFlag_NeedSchema, /* iArg: */ 1 }, #endif #if !defined(SQLITE_OMIT_INTEGRITY_CHECK) { /* zName: */ "integrity_check", /* ePragTyp: */ PragTyp_INTEGRITY_CHECK, /* ePragFlag: */ PragFlag_NeedSchema, /* iArg: */ 0 }, #endif |
︙ | ︙ | |||
102485 102486 102487 102488 102489 102490 102491 | #if !defined(SQLITE_OMIT_FLAG_PRAGMAS) { /* zName: */ "writable_schema", /* ePragTyp: */ PragTyp_FLAG, /* ePragFlag: */ 0, /* iArg: */ SQLITE_WriteSchema|SQLITE_RecoveryMode }, #endif }; | | | | > | 103173 103174 103175 103176 103177 103178 103179 103180 103181 103182 103183 103184 103185 103186 103187 103188 103189 103190 | #if !defined(SQLITE_OMIT_FLAG_PRAGMAS) { /* zName: */ "writable_schema", /* ePragTyp: */ PragTyp_FLAG, /* ePragFlag: */ 0, /* iArg: */ SQLITE_WriteSchema|SQLITE_RecoveryMode }, #endif }; /* Number of pragmas: 59 on by default, 72 total. */ /************** End of pragma.h **********************************************/ /************** Continuing where we left off in pragma.c *********************/ /* ** Interpret the given string as a safety level. Return 0 for OFF, ** 1 for ON or NORMAL and 2 for FULL. Return 1 for an empty or ** unrecognized string argument. The FULL option is disallowed ** if the omitFull parameter it 1. ** |
︙ | ︙ | |||
102740 102741 102742 102743 102744 102745 102746 102747 102748 102749 102750 102751 102752 102753 | char *aFcntl[4]; /* Argument to SQLITE_FCNTL_PRAGMA */ int iDb; /* Database index for <database> */ int lwr, upr, mid = 0; /* Binary search bounds */ int rc; /* return value form SQLITE_FCNTL_PRAGMA */ sqlite3 *db = pParse->db; /* The database connection */ Db *pDb; /* The specific database being pragmaed */ Vdbe *v = sqlite3GetVdbe(pParse); /* Prepared statement */ if( v==0 ) return; sqlite3VdbeRunOnlyOnce(v); pParse->nMem = 2; /* Interpret the [database.] part of the pragma statement. iDb is the ** index of the database this pragma is being applied to in db.aDb[]. */ | > | 103429 103430 103431 103432 103433 103434 103435 103436 103437 103438 103439 103440 103441 103442 103443 | char *aFcntl[4]; /* Argument to SQLITE_FCNTL_PRAGMA */ int iDb; /* Database index for <database> */ int lwr, upr, mid = 0; /* Binary search bounds */ int rc; /* return value form SQLITE_FCNTL_PRAGMA */ sqlite3 *db = pParse->db; /* The database connection */ Db *pDb; /* The specific database being pragmaed */ Vdbe *v = sqlite3GetVdbe(pParse); /* Prepared statement */ const struct sPragmaNames *pPragma; if( v==0 ) return; sqlite3VdbeRunOnlyOnce(v); pParse->nMem = 2; /* Interpret the [database.] part of the pragma statement. iDb is the ** index of the database this pragma is being applied to in db.aDb[]. */ |
︙ | ︙ | |||
102775 102776 102777 102778 102779 102780 102781 102782 102783 102784 102785 102786 102787 102788 | if( sqlite3AuthCheck(pParse, SQLITE_PRAGMA, zLeft, zRight, zDb) ){ goto pragma_out; } /* Send an SQLITE_FCNTL_PRAGMA file-control to the underlying VFS ** connection. If it returns SQLITE_OK, then assume that the VFS ** handled the pragma and generate a no-op prepared statement. */ aFcntl[0] = 0; aFcntl[1] = zLeft; aFcntl[2] = zRight; aFcntl[3] = 0; db->busyHandler.nBusy = 0; rc = sqlite3_file_control(db, zDb, SQLITE_FCNTL_PRAGMA, (void*)aFcntl); | > > > > > > > > > > > | 103465 103466 103467 103468 103469 103470 103471 103472 103473 103474 103475 103476 103477 103478 103479 103480 103481 103482 103483 103484 103485 103486 103487 103488 103489 | if( sqlite3AuthCheck(pParse, SQLITE_PRAGMA, zLeft, zRight, zDb) ){ goto pragma_out; } /* Send an SQLITE_FCNTL_PRAGMA file-control to the underlying VFS ** connection. If it returns SQLITE_OK, then assume that the VFS ** handled the pragma and generate a no-op prepared statement. ** ** IMPLEMENTATION-OF: R-12238-55120 Whenever a PRAGMA statement is parsed, ** an SQLITE_FCNTL_PRAGMA file control is sent to the open sqlite3_file ** object corresponding to the database file to which the pragma ** statement refers. ** ** IMPLEMENTATION-OF: R-29875-31678 The argument to the SQLITE_FCNTL_PRAGMA ** file control is an array of pointers to strings (char**) in which the ** second element of the array is the name of the pragma and the third ** element is the argument to the pragma or NULL if the pragma has no ** argument. */ aFcntl[0] = 0; aFcntl[1] = zLeft; aFcntl[2] = zRight; aFcntl[3] = 0; db->busyHandler.nBusy = 0; rc = sqlite3_file_control(db, zDb, SQLITE_FCNTL_PRAGMA, (void*)aFcntl); |
︙ | ︙ | |||
102817 102818 102819 102820 102821 102822 102823 102824 102825 | if( rc<0 ){ upr = mid - 1; }else{ lwr = mid + 1; } } if( lwr>upr ) goto pragma_out; /* Make sure the database schema is loaded if the pragma requires that */ | > | | | 103518 103519 103520 103521 103522 103523 103524 103525 103526 103527 103528 103529 103530 103531 103532 103533 103534 103535 103536 103537 103538 103539 103540 | if( rc<0 ){ upr = mid - 1; }else{ lwr = mid + 1; } } if( lwr>upr ) goto pragma_out; pPragma = &aPragmaNames[mid]; /* Make sure the database schema is loaded if the pragma requires that */ if( (pPragma->mPragFlag & PragFlag_NeedSchema)!=0 ){ if( sqlite3ReadSchema(pParse) ) goto pragma_out; } /* Jump to the appropriate pragma handler */ switch( pPragma->ePragTyp ){ #if !defined(SQLITE_OMIT_PAGER_PRAGMAS) && !defined(SQLITE_OMIT_DEPRECATED) /* ** PRAGMA [database.]default_cache_size ** PRAGMA [database.]default_cache_size=N ** ** The first form reports the current persistent setting for the |
︙ | ︙ | |||
103403 103404 103405 103406 103407 103408 103409 | break; } #endif /* SQLITE_OMIT_PAGER_PRAGMAS */ #ifndef SQLITE_OMIT_FLAG_PRAGMAS case PragTyp_FLAG: { if( zRight==0 ){ | | < | | 104105 104106 104107 104108 104109 104110 104111 104112 104113 104114 104115 104116 104117 104118 104119 104120 104121 | break; } #endif /* SQLITE_OMIT_PAGER_PRAGMAS */ #ifndef SQLITE_OMIT_FLAG_PRAGMAS case PragTyp_FLAG: { if( zRight==0 ){ returnSingleInt(pParse, pPragma->zName, (db->flags & pPragma->iArg)!=0 ); }else{ int mask = pPragma->iArg; /* Mask of bits to set or clear. */ if( db->autoCommit==0 ){ /* Foreign key support may not be enabled or disabled while not ** in auto-commit mode. */ mask &= ~(SQLITE_ForeignKeys); } #if SQLITE_USER_AUTHENTICATION if( db->auth.authLevel==UAUTH_User ){ |
︙ | ︙ | |||
103535 103536 103537 103538 103539 103540 103541 103542 | case PragTyp_INDEX_INFO: if( zRight ){ Index *pIdx; Table *pTab; pIdx = sqlite3FindIndex(db, zRight, zDb); if( pIdx ){ int i; pTab = pIdx->pTable; | > > > > > > > > > > | < > > > > > | | > > | > > > > > > | | | > > > > > | | 104236 104237 104238 104239 104240 104241 104242 104243 104244 104245 104246 104247 104248 104249 104250 104251 104252 104253 104254 104255 104256 104257 104258 104259 104260 104261 104262 104263 104264 104265 104266 104267 104268 104269 104270 104271 104272 104273 104274 104275 104276 104277 104278 104279 104280 104281 104282 104283 104284 104285 104286 104287 104288 104289 104290 104291 104292 104293 104294 104295 104296 104297 104298 104299 104300 104301 104302 104303 104304 104305 104306 104307 104308 104309 104310 104311 104312 104313 | case PragTyp_INDEX_INFO: if( zRight ){ Index *pIdx; Table *pTab; pIdx = sqlite3FindIndex(db, zRight, zDb); if( pIdx ){ int i; int mx; if( pPragma->iArg ){ /* PRAGMA index_xinfo (newer version with more rows and columns) */ mx = pIdx->nColumn; pParse->nMem = 6; }else{ /* PRAGMA index_info (legacy version) */ mx = pIdx->nKeyCol; pParse->nMem = 3; } pTab = pIdx->pTable; sqlite3VdbeSetNumCols(v, pParse->nMem); sqlite3CodeVerifySchema(pParse, iDb); sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "seqno", SQLITE_STATIC); sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "cid", SQLITE_STATIC); sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "name", SQLITE_STATIC); if( pPragma->iArg ){ sqlite3VdbeSetColName(v, 3, COLNAME_NAME, "desc", SQLITE_STATIC); sqlite3VdbeSetColName(v, 4, COLNAME_NAME, "coll", SQLITE_STATIC); sqlite3VdbeSetColName(v, 5, COLNAME_NAME, "key", SQLITE_STATIC); } for(i=0; i<mx; i++){ i16 cnum = pIdx->aiColumn[i]; sqlite3VdbeAddOp2(v, OP_Integer, i, 1); sqlite3VdbeAddOp2(v, OP_Integer, cnum, 2); if( cnum<0 ){ sqlite3VdbeAddOp2(v, OP_Null, 0, 3); }else{ sqlite3VdbeAddOp4(v, OP_String8, 0, 3, 0, pTab->aCol[cnum].zName, 0); } if( pPragma->iArg ){ sqlite3VdbeAddOp2(v, OP_Integer, pIdx->aSortOrder[i], 4); sqlite3VdbeAddOp4(v, OP_String8, 0, 5, 0, pIdx->azColl[i], 0); sqlite3VdbeAddOp2(v, OP_Integer, i<pIdx->nKeyCol, 6); } sqlite3VdbeAddOp2(v, OP_ResultRow, 1, pParse->nMem); } } } break; case PragTyp_INDEX_LIST: if( zRight ){ Index *pIdx; Table *pTab; int i; pTab = sqlite3FindTable(db, zRight, zDb); if( pTab ){ v = sqlite3GetVdbe(pParse); sqlite3VdbeSetNumCols(v, 5); pParse->nMem = 5; sqlite3CodeVerifySchema(pParse, iDb); sqlite3VdbeSetColName(v, 0, COLNAME_NAME, "seq", SQLITE_STATIC); sqlite3VdbeSetColName(v, 1, COLNAME_NAME, "name", SQLITE_STATIC); sqlite3VdbeSetColName(v, 2, COLNAME_NAME, "unique", SQLITE_STATIC); sqlite3VdbeSetColName(v, 3, COLNAME_NAME, "origin", SQLITE_STATIC); sqlite3VdbeSetColName(v, 4, COLNAME_NAME, "partial", SQLITE_STATIC); for(pIdx=pTab->pIndex, i=0; pIdx; pIdx=pIdx->pNext, i++){ const char *azOrigin[] = { "c", "u", "pk" }; sqlite3VdbeAddOp2(v, OP_Integer, i, 1); sqlite3VdbeAddOp4(v, OP_String8, 0, 2, 0, pIdx->zName, 0); sqlite3VdbeAddOp2(v, OP_Integer, IsUniqueIndex(pIdx), 3); sqlite3VdbeAddOp4(v, OP_String8, 0, 4, 0, azOrigin[pIdx->idxType], 0); sqlite3VdbeAddOp2(v, OP_Integer, pIdx->pPartIdxWhere!=0, 5); sqlite3VdbeAddOp2(v, OP_ResultRow, 1, 5); } } } break; case PragTyp_DATABASE_LIST: { int i; |
︙ | ︙ | |||
104141 104142 104143 104144 104145 104146 104147 | ** the schema-version is potentially dangerous and may lead to program ** crashes or database corruption. Use with caution! ** ** The user-version is not used internally by SQLite. It may be used by ** applications for any purpose. */ case PragTyp_HEADER_VALUE: { | | | | 104869 104870 104871 104872 104873 104874 104875 104876 104877 104878 104879 104880 104881 104882 104883 104884 104885 | ** the schema-version is potentially dangerous and may lead to program ** crashes or database corruption. Use with caution! ** ** The user-version is not used internally by SQLite. It may be used by ** applications for any purpose. */ case PragTyp_HEADER_VALUE: { int iCookie = pPragma->iArg; /* Which cookie to read or write */ sqlite3VdbeUsesBtree(v, iDb); if( zRight && (pPragma->mPragFlag & PragFlag_ReadOnly)==0 ){ /* Write the specified cookie value */ static const VdbeOpList setCookie[] = { { OP_Transaction, 0, 1, 0}, /* 0 */ { OP_Integer, 0, 1, 0}, /* 1 */ { OP_SetCookie, 0, 0, 1}, /* 2 */ }; int addr = sqlite3VdbeAddOpList(v, ArraySize(setCookie), setCookie, 0); |
︙ | ︙ | |||
104245 104246 104247 104248 104249 104250 104251 | } break; #endif /* ** PRAGMA shrink_memory ** | | | > | > | | > > > | 104973 104974 104975 104976 104977 104978 104979 104980 104981 104982 104983 104984 104985 104986 104987 104988 104989 104990 104991 104992 104993 104994 104995 104996 104997 104998 104999 105000 105001 105002 105003 105004 105005 105006 105007 105008 105009 105010 105011 105012 105013 105014 105015 105016 105017 105018 105019 105020 105021 105022 105023 | } break; #endif /* ** PRAGMA shrink_memory ** ** IMPLEMENTATION-OF: R-23445-46109 This pragma causes the database ** connection on which it is invoked to free up as much memory as it ** can, by calling sqlite3_db_release_memory(). */ case PragTyp_SHRINK_MEMORY: { sqlite3_db_release_memory(db); break; } /* ** PRAGMA busy_timeout ** PRAGMA busy_timeout = N ** ** Call sqlite3_busy_timeout(db, N). Return the current timeout value ** if one is set. If no busy handler or a different busy handler is set ** then 0 is returned. Setting the busy_timeout to 0 or negative ** disables the timeout. */ /*case PragTyp_BUSY_TIMEOUT*/ default: { assert( pPragma->ePragTyp==PragTyp_BUSY_TIMEOUT ); if( zRight ){ sqlite3_busy_timeout(db, sqlite3Atoi(zRight)); } returnSingleInt(pParse, "timeout", db->busyTimeout); break; } /* ** PRAGMA soft_heap_limit ** PRAGMA soft_heap_limit = N ** ** IMPLEMENTATION-OF: R-26343-45930 This pragma invokes the ** sqlite3_soft_heap_limit64() interface with the argument N, if N is ** specified and is a non-negative integer. ** IMPLEMENTATION-OF: R-64451-07163 The soft_heap_limit pragma always ** returns the same integer that would be returned by the ** sqlite3_soft_heap_limit64(-1) C-language function. */ case PragTyp_SOFT_HEAP_LIMIT: { sqlite3_int64 N; if( zRight && sqlite3DecOrHexToI64(zRight, &N)==SQLITE_OK ){ sqlite3_soft_heap_limit64(N); } returnSingleInt(pParse, "soft_heap_limit", sqlite3_soft_heap_limit64(-1)); |
︙ | ︙ | |||
105172 105173 105174 105175 105176 105177 105178 | ** Two versions of the official API. Legacy and new use. In the legacy ** version, the original SQL text is not saved in the prepared statement ** and so if a schema change occurs, SQLITE_SCHEMA is returned by ** sqlite3_step(). In the new version, the original SQL text is retained ** and the statement is automatically recompiled if an schema change ** occurs. */ | | | | 105905 105906 105907 105908 105909 105910 105911 105912 105913 105914 105915 105916 105917 105918 105919 105920 105921 105922 105923 105924 105925 105926 105927 105928 105929 105930 105931 | ** Two versions of the official API. Legacy and new use. In the legacy ** version, the original SQL text is not saved in the prepared statement ** and so if a schema change occurs, SQLITE_SCHEMA is returned by ** sqlite3_step(). In the new version, the original SQL text is retained ** and the statement is automatically recompiled if an schema change ** occurs. */ SQLITE_API int SQLITE_STDCALL sqlite3_prepare( sqlite3 *db, /* Database handle. */ const char *zSql, /* UTF-8 encoded SQL statement. */ int nBytes, /* Length of zSql in bytes. */ sqlite3_stmt **ppStmt, /* OUT: A pointer to the prepared statement */ const char **pzTail /* OUT: End of parsed string */ ){ int rc; rc = sqlite3LockAndPrepare(db,zSql,nBytes,0,0,ppStmt,pzTail); assert( rc==SQLITE_OK || ppStmt==0 || *ppStmt==0 ); /* VERIFY: F13021 */ return rc; } SQLITE_API int SQLITE_STDCALL sqlite3_prepare_v2( sqlite3 *db, /* Database handle. */ const char *zSql, /* UTF-8 encoded SQL statement. */ int nBytes, /* Length of zSql in bytes. */ sqlite3_stmt **ppStmt, /* OUT: A pointer to the prepared statement */ const char **pzTail /* OUT: End of parsed string */ ){ int rc; |
︙ | ︙ | |||
105260 105261 105262 105263 105264 105265 105266 | ** Two versions of the official API. Legacy and new use. In the legacy ** version, the original SQL text is not saved in the prepared statement ** and so if a schema change occurs, SQLITE_SCHEMA is returned by ** sqlite3_step(). In the new version, the original SQL text is retained ** and the statement is automatically recompiled if an schema change ** occurs. */ | | | | 105993 105994 105995 105996 105997 105998 105999 106000 106001 106002 106003 106004 106005 106006 106007 106008 106009 106010 106011 106012 106013 106014 106015 106016 106017 106018 106019 | ** Two versions of the official API. Legacy and new use. In the legacy ** version, the original SQL text is not saved in the prepared statement ** and so if a schema change occurs, SQLITE_SCHEMA is returned by ** sqlite3_step(). In the new version, the original SQL text is retained ** and the statement is automatically recompiled if an schema change ** occurs. */ SQLITE_API int SQLITE_STDCALL sqlite3_prepare16( sqlite3 *db, /* Database handle. */ const void *zSql, /* UTF-16 encoded SQL statement. */ int nBytes, /* Length of zSql in bytes. */ sqlite3_stmt **ppStmt, /* OUT: A pointer to the prepared statement */ const void **pzTail /* OUT: End of parsed string */ ){ int rc; rc = sqlite3Prepare16(db,zSql,nBytes,0,ppStmt,pzTail); assert( rc==SQLITE_OK || ppStmt==0 || *ppStmt==0 ); /* VERIFY: F13021 */ return rc; } SQLITE_API int SQLITE_STDCALL sqlite3_prepare16_v2( sqlite3 *db, /* Database handle. */ const void *zSql, /* UTF-16 encoded SQL statement. */ int nBytes, /* Length of zSql in bytes. */ sqlite3_stmt **ppStmt, /* OUT: A pointer to the prepared statement */ const void **pzTail /* OUT: End of parsed string */ ){ int rc; |
︙ | ︙ | |||
105853 105854 105855 105856 105857 105858 105859 | if( pSort->sortFlags & SORTFLAG_UseSorter ){ op = OP_SorterInsert; }else{ op = OP_IdxInsert; } sqlite3VdbeAddOp2(v, op, pSort->iECursor, regRecord); if( pSelect->iLimit ){ | | < < | < | | 106586 106587 106588 106589 106590 106591 106592 106593 106594 106595 106596 106597 106598 106599 106600 106601 106602 106603 106604 106605 106606 106607 106608 106609 106610 | if( pSort->sortFlags & SORTFLAG_UseSorter ){ op = OP_SorterInsert; }else{ op = OP_IdxInsert; } sqlite3VdbeAddOp2(v, op, pSort->iECursor, regRecord); if( pSelect->iLimit ){ int addr; int iLimit; if( pSelect->iOffset ){ iLimit = pSelect->iOffset+1; }else{ iLimit = pSelect->iLimit; } addr = sqlite3VdbeAddOp3(v, OP_IfNotZero, iLimit, 0, -1); VdbeCoverage(v); sqlite3VdbeAddOp1(v, OP_Last, pSort->iECursor); sqlite3VdbeAddOp1(v, OP_Delete, pSort->iECursor); sqlite3VdbeJumpHere(v, addr); } } /* ** Add code to implement the OFFSET */ static void codeOffset( |
︙ | ︙ | |||
106263 106264 106265 106266 106267 106268 106269 | } /* Jump to the end of the loop if the LIMIT is reached. Except, if ** there is a sorter, in which case the sorter has already limited ** the output for us. */ if( pSort==0 && p->iLimit ){ | | | 106993 106994 106995 106996 106997 106998 106999 107000 107001 107002 107003 107004 107005 107006 107007 | } /* Jump to the end of the loop if the LIMIT is reached. Except, if ** there is a sorter, in which case the sorter has already limited ** the output for us. */ if( pSort==0 && p->iLimit ){ sqlite3VdbeAddOp2(v, OP_DecrJumpZero, p->iLimit, iBreak); VdbeCoverage(v); } } /* ** Allocate a KeyInfo object sufficient for an index of N key columns and ** X extra columns. */ |
︙ | ︙ | |||
107116 107117 107118 107119 107120 107121 107122 | }else if( n>=0 && p->nSelectRow>(u64)n ){ p->nSelectRow = n; } }else{ sqlite3ExprCode(pParse, p->pLimit, iLimit); sqlite3VdbeAddOp1(v, OP_MustBeInt, iLimit); VdbeCoverage(v); VdbeComment((v, "LIMIT counter")); | | | 107846 107847 107848 107849 107850 107851 107852 107853 107854 107855 107856 107857 107858 107859 107860 | }else if( n>=0 && p->nSelectRow>(u64)n ){ p->nSelectRow = n; } }else{ sqlite3ExprCode(pParse, p->pLimit, iLimit); sqlite3VdbeAddOp1(v, OP_MustBeInt, iLimit); VdbeCoverage(v); VdbeComment((v, "LIMIT counter")); sqlite3VdbeAddOp2(v, OP_IfNot, iLimit, iBreak); VdbeCoverage(v); } if( p->pOffset ){ p->iOffset = iOffset = ++pParse->nMem; pParse->nMem++; /* Allocate an extra register for limit+offset */ sqlite3ExprCode(pParse, p->pOffset, iOffset); sqlite3VdbeAddOp1(v, OP_MustBeInt, iOffset); VdbeCoverage(v); VdbeComment((v, "OFFSET counter")); |
︙ | ︙ | |||
107335 107336 107337 107338 107339 107340 107341 | /* Output the single row in Current */ addrCont = sqlite3VdbeMakeLabel(v); codeOffset(v, regOffset, addrCont); selectInnerLoop(pParse, p, p->pEList, iCurrent, 0, 0, pDest, addrCont, addrBreak); if( regLimit ){ | | | 108065 108066 108067 108068 108069 108070 108071 108072 108073 108074 108075 108076 108077 108078 108079 | /* Output the single row in Current */ addrCont = sqlite3VdbeMakeLabel(v); codeOffset(v, regOffset, addrCont); selectInnerLoop(pParse, p, p->pEList, iCurrent, 0, 0, pDest, addrCont, addrBreak); if( regLimit ){ sqlite3VdbeAddOp2(v, OP_DecrJumpZero, regLimit, addrBreak); VdbeCoverage(v); } sqlite3VdbeResolveLabel(v, addrCont); /* Execute the recursive SELECT taking the single row in Current as ** the value for the recursive-table. Store the results in the Queue. */ |
︙ | ︙ | |||
107560 107561 107562 107563 107564 107565 107566 | if( rc ){ goto multi_select_end; } p->pPrior = 0; p->iLimit = pPrior->iLimit; p->iOffset = pPrior->iOffset; if( p->iLimit ){ | | | 108290 108291 108292 108293 108294 108295 108296 108297 108298 108299 108300 108301 108302 108303 108304 | if( rc ){ goto multi_select_end; } p->pPrior = 0; p->iLimit = pPrior->iLimit; p->iOffset = pPrior->iOffset; if( p->iLimit ){ addr = sqlite3VdbeAddOp1(v, OP_IfNot, p->iLimit); VdbeCoverage(v); VdbeComment((v, "Jump ahead if LIMIT reached")); } explainSetInteger(iSub2, pParse->iNextSelectId); rc = sqlite3Select(pParse, p, &dest); testcase( rc!=SQLITE_OK ); pDelete = p->pPrior; p->pPrior = pPrior; |
︙ | ︙ | |||
107961 107962 107963 107964 107965 107966 107967 | break; } } /* Jump to the end of the loop if the LIMIT is reached. */ if( p->iLimit ){ | | | 108691 108692 108693 108694 108695 108696 108697 108698 108699 108700 108701 108702 108703 108704 108705 | break; } } /* Jump to the end of the loop if the LIMIT is reached. */ if( p->iLimit ){ sqlite3VdbeAddOp2(v, OP_DecrJumpZero, p->iLimit, iBreak); VdbeCoverage(v); } /* Generate the subroutine return */ sqlite3VdbeResolveLabel(v, iContinue); sqlite3VdbeAddOp1(v, OP_Return, regReturn); |
︙ | ︙ | |||
108484 108485 108486 108487 108488 108489 108490 | ** exist on the table t1, a complete scan of the data might be ** avoided. ** ** Flattening is only attempted if all of the following are true: ** ** (1) The subquery and the outer query do not both use aggregates. ** | | > > > | 109214 109215 109216 109217 109218 109219 109220 109221 109222 109223 109224 109225 109226 109227 109228 109229 109230 109231 | ** exist on the table t1, a complete scan of the data might be ** avoided. ** ** Flattening is only attempted if all of the following are true: ** ** (1) The subquery and the outer query do not both use aggregates. ** ** (2) The subquery is not an aggregate or (2a) the outer query is not a join ** and (2b) the outer query does not use subqueries other than the one ** FROM-clause subquery that is a candidate for flattening. (2b is ** due to ticket [2f7170d73bf9abf80] from 2015-02-09.) ** ** (3) The subquery is not the right operand of a left outer join ** (Originally ticket #306. Strengthened by ticket #3300) ** ** (4) The subquery is not DISTINCT. ** ** (**) At one point restrictions (4) and (5) defined a subset of DISTINCT |
︙ | ︙ | |||
108621 108622 108623 108624 108625 108626 108627 | if( OptimizationDisabled(db, SQLITE_QueryFlattener) ) return 0; pSrc = p->pSrc; assert( pSrc && iFrom>=0 && iFrom<pSrc->nSrc ); pSubitem = &pSrc->a[iFrom]; iParent = pSubitem->iCursor; pSub = pSubitem->pSelect; assert( pSub!=0 ); | > | | > > > > > > > > | 109354 109355 109356 109357 109358 109359 109360 109361 109362 109363 109364 109365 109366 109367 109368 109369 109370 109371 109372 109373 109374 109375 109376 109377 109378 | if( OptimizationDisabled(db, SQLITE_QueryFlattener) ) return 0; pSrc = p->pSrc; assert( pSrc && iFrom>=0 && iFrom<pSrc->nSrc ); pSubitem = &pSrc->a[iFrom]; iParent = pSubitem->iCursor; pSub = pSubitem->pSelect; assert( pSub!=0 ); if( subqueryIsAgg ){ if( isAgg ) return 0; /* Restriction (1) */ if( pSrc->nSrc>1 ) return 0; /* Restriction (2a) */ if( (p->pWhere && ExprHasProperty(p->pWhere,EP_Subquery)) || (sqlite3ExprListFlags(p->pEList) & EP_Subquery)!=0 || (sqlite3ExprListFlags(p->pOrderBy) & EP_Subquery)!=0 ){ return 0; /* Restriction (2b) */ } } pSubSrc = pSub->pSrc; assert( pSubSrc ); /* Prior to version 3.1.2, when LIMIT and OFFSET had to be simple constants, ** not arbitrary expressions, we allowed some combining of LIMIT and OFFSET ** because they could be computed at compile-time. But when LIMIT and OFFSET ** became arbitrary expressions, we were forced to add restrictions (13) ** and (14). */ |
︙ | ︙ | |||
109316 109317 109318 109319 109320 109321 109322 | pSavedWith = pParse->pWith; pParse->pWith = pWith; sqlite3WalkSelect(pWalker, bMayRecursive ? pSel->pPrior : pSel); for(pLeft=pSel; pLeft->pPrior; pLeft=pLeft->pPrior); pEList = pLeft->pEList; if( pCte->pCols ){ | | | 110058 110059 110060 110061 110062 110063 110064 110065 110066 110067 110068 110069 110070 110071 110072 | pSavedWith = pParse->pWith; pParse->pWith = pWith; sqlite3WalkSelect(pWalker, bMayRecursive ? pSel->pPrior : pSel); for(pLeft=pSel; pLeft->pPrior; pLeft=pLeft->pPrior); pEList = pLeft->pEList; if( pCte->pCols ){ if( pEList && pEList->nExpr!=pCte->pCols->nExpr ){ sqlite3ErrorMsg(pParse, "table %s has %d values for %d columns", pCte->zName, pEList->nExpr, pCte->pCols->nExpr ); pParse->pWith = pSavedWith; return SQLITE_ERROR; } pEList = pCte->pCols; |
︙ | ︙ | |||
109443 109444 109445 109446 109447 109448 109449 | #endif if( pFrom->zName==0 ){ #ifndef SQLITE_OMIT_SUBQUERY Select *pSel = pFrom->pSelect; /* A sub-query in the FROM clause of a SELECT */ assert( pSel!=0 ); assert( pFrom->pTab==0 ); | | | 110185 110186 110187 110188 110189 110190 110191 110192 110193 110194 110195 110196 110197 110198 110199 | #endif if( pFrom->zName==0 ){ #ifndef SQLITE_OMIT_SUBQUERY Select *pSel = pFrom->pSelect; /* A sub-query in the FROM clause of a SELECT */ assert( pSel!=0 ); assert( pFrom->pTab==0 ); if( sqlite3WalkSelect(pWalker, pSel) ) return WRC_Abort; pFrom->pTab = pTab = sqlite3DbMallocZero(db, sizeof(Table)); if( pTab==0 ) return WRC_Abort; pTab->nRef = 1; pTab->zName = sqlite3MPrintf(db, "sqlite_sq_%p", (void*)pTab); while( pSel->pPrior ){ pSel = pSel->pPrior; } selectColumnsFromExprList(pParse, pSel->pEList, &pTab->nCol, &pTab->aCol); pTab->iPKey = -1; |
︙ | ︙ | |||
110042 110043 110044 110045 110046 110047 110048 110049 110050 110051 110052 110053 110054 110055 | pTabList = p->pSrc; pEList = p->pEList; if( pParse->nErr || db->mallocFailed ){ goto select_end; } isAgg = (p->selFlags & SF_Aggregate)!=0; assert( pEList!=0 ); /* Begin generating code. */ v = sqlite3GetVdbe(pParse); if( v==0 ) goto select_end; /* If writing to memory or generating a set | > > > > > > > | 110784 110785 110786 110787 110788 110789 110790 110791 110792 110793 110794 110795 110796 110797 110798 110799 110800 110801 110802 110803 110804 | pTabList = p->pSrc; pEList = p->pEList; if( pParse->nErr || db->mallocFailed ){ goto select_end; } isAgg = (p->selFlags & SF_Aggregate)!=0; assert( pEList!=0 ); #if SELECTTRACE_ENABLED if( sqlite3SelectTrace & 0x100 ){ SELECTTRACE(0x100,pParse,p, ("after name resolution:\n")); sqlite3TreeViewSelect(0, p, 0); } #endif /* Begin generating code. */ v = sqlite3GetVdbe(pParse); if( v==0 ) goto select_end; /* If writing to memory or generating a set |
︙ | ︙ | |||
110787 110788 110789 110790 110791 110792 110793 | #ifdef SQLITE_DEBUG /* ** Generate a human-readable description of a the Select object. */ SQLITE_PRIVATE void sqlite3TreeViewSelect(TreeView *pView, const Select *p, u8 moreToFollow){ int n = 0; pView = sqlite3TreeViewPush(pView, moreToFollow); | | | | 111536 111537 111538 111539 111540 111541 111542 111543 111544 111545 111546 111547 111548 111549 111550 111551 111552 | #ifdef SQLITE_DEBUG /* ** Generate a human-readable description of a the Select object. */ SQLITE_PRIVATE void sqlite3TreeViewSelect(TreeView *pView, const Select *p, u8 moreToFollow){ int n = 0; pView = sqlite3TreeViewPush(pView, moreToFollow); sqlite3TreeViewLine(pView, "SELECT%s%s (0x%p)", ((p->selFlags & SF_Distinct) ? " DISTINCT" : ""), ((p->selFlags & SF_Aggregate) ? " agg_flag" : ""), p ); if( p->pSrc && p->pSrc->nSrc ) n++; if( p->pWhere ) n++; if( p->pGroupBy ) n++; if( p->pHaving ) n++; if( p->pOrderBy ) n++; if( p->pLimit ) n++; |
︙ | ︙ | |||
110992 110993 110994 110995 110996 110997 110998 | ** at the conclusion of the call. ** ** The result that is written to ***pazResult is held in memory obtained ** from malloc(). But the caller cannot free this memory directly. ** Instead, the entire table should be passed to sqlite3_free_table() when ** the calling procedure is finished using it. */ | | | 111741 111742 111743 111744 111745 111746 111747 111748 111749 111750 111751 111752 111753 111754 111755 | ** at the conclusion of the call. ** ** The result that is written to ***pazResult is held in memory obtained ** from malloc(). But the caller cannot free this memory directly. ** Instead, the entire table should be passed to sqlite3_free_table() when ** the calling procedure is finished using it. */ SQLITE_API int SQLITE_STDCALL sqlite3_get_table( sqlite3 *db, /* The database on which the SQL executes */ const char *zSql, /* The SQL to be executed */ char ***pazResult, /* Write the result table here */ int *pnRow, /* Write the number of rows in the result here */ int *pnColumn, /* Write the number of columns of result here */ char **pzErrMsg /* Write error messages here */ ){ |
︙ | ︙ | |||
111061 111062 111063 111064 111065 111066 111067 | if( pnRow ) *pnRow = res.nRow; return rc; } /* ** This routine frees the space the sqlite3_get_table() malloced. */ | | | 111810 111811 111812 111813 111814 111815 111816 111817 111818 111819 111820 111821 111822 111823 111824 | if( pnRow ) *pnRow = res.nRow; return rc; } /* ** This routine frees the space the sqlite3_get_table() malloced. */ SQLITE_API void SQLITE_STDCALL sqlite3_free_table( char **azResult /* Result returned from sqlite3_get_table() */ ){ if( azResult ){ int i, n; azResult--; assert( azResult!=0 ); n = SQLITE_PTR_TO_INT(azResult[0]); |
︙ | ︙ | |||
113159 113160 113161 113162 113163 113164 113165 | /* The call to execSql() to attach the temp database has left the file ** locked (as there was more than one active statement when the transaction ** to read the schema was concluded. Unlock it here so that this doesn't ** cause problems for the call to BtreeSetPageSize() below. */ sqlite3BtreeCommit(pTemp); | | | 113908 113909 113910 113911 113912 113913 113914 113915 113916 113917 113918 113919 113920 113921 113922 | /* The call to execSql() to attach the temp database has left the file ** locked (as there was more than one active statement when the transaction ** to read the schema was concluded. Unlock it here so that this doesn't ** cause problems for the call to BtreeSetPageSize() below. */ sqlite3BtreeCommit(pTemp); nRes = sqlite3BtreeGetOptimalReserve(pMain); /* A VACUUM cannot change the pagesize of an encrypted database. */ #ifdef SQLITE_HAS_CODEC if( db->nextPagesize ){ extern void sqlite3CodecGetKey(sqlite3*, int, void**, int*); int nKey; char *zKey; |
︙ | ︙ | |||
113421 113422 113423 113424 113425 113426 113427 | return rc; } /* ** External API function used to create a new virtual-table module. */ | | | | 114170 114171 114172 114173 114174 114175 114176 114177 114178 114179 114180 114181 114182 114183 114184 114185 114186 114187 114188 114189 114190 114191 114192 114193 114194 114195 114196 114197 114198 114199 | return rc; } /* ** External API function used to create a new virtual-table module. */ SQLITE_API int SQLITE_STDCALL sqlite3_create_module( sqlite3 *db, /* Database in which module is registered */ const char *zName, /* Name assigned to this module */ const sqlite3_module *pModule, /* The definition of the module */ void *pAux /* Context pointer for xCreate/xConnect */ ){ #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) || zName==0 ) return SQLITE_MISUSE_BKPT; #endif return createModule(db, zName, pModule, pAux, 0); } /* ** External API function used to create a new virtual-table module. */ SQLITE_API int SQLITE_STDCALL sqlite3_create_module_v2( sqlite3 *db, /* Database in which module is registered */ const char *zName, /* Name assigned to this module */ const sqlite3_module *pModule, /* The definition of the module */ void *pAux, /* Context pointer for xCreate/xConnect */ void (*xDestroy)(void *) /* Module destructor function */ ){ #ifdef SQLITE_ENABLE_API_ARMOR |
︙ | ︙ | |||
113735 113736 113737 113738 113739 113740 113741 113742 113743 113744 113745 113746 113747 113748 | ** do additional initialization work and store the statement text ** in the sqlite_master table. */ if( !db->init.busy ){ char *zStmt; char *zWhere; int iDb; Vdbe *v; /* Compute the complete text of the CREATE VIRTUAL TABLE statement */ if( pEnd ){ pParse->sNameToken.n = (int)(pEnd->z - pParse->sNameToken.z) + pEnd->n; } zStmt = sqlite3MPrintf(db, "CREATE VIRTUAL TABLE %T", &pParse->sNameToken); | > | 114484 114485 114486 114487 114488 114489 114490 114491 114492 114493 114494 114495 114496 114497 114498 | ** do additional initialization work and store the statement text ** in the sqlite_master table. */ if( !db->init.busy ){ char *zStmt; char *zWhere; int iDb; int iReg; Vdbe *v; /* Compute the complete text of the CREATE VIRTUAL TABLE statement */ if( pEnd ){ pParse->sNameToken.n = (int)(pEnd->z - pParse->sNameToken.z) + pEnd->n; } zStmt = sqlite3MPrintf(db, "CREATE VIRTUAL TABLE %T", &pParse->sNameToken); |
︙ | ︙ | |||
113769 113770 113771 113772 113773 113774 113775 | sqlite3DbFree(db, zStmt); v = sqlite3GetVdbe(pParse); sqlite3ChangeCookie(pParse, iDb); sqlite3VdbeAddOp2(v, OP_Expire, 0, 0); zWhere = sqlite3MPrintf(db, "name='%q' AND type='table'", pTab->zName); sqlite3VdbeAddParseSchemaOp(v, iDb, zWhere); | > > | | | 114519 114520 114521 114522 114523 114524 114525 114526 114527 114528 114529 114530 114531 114532 114533 114534 114535 114536 | sqlite3DbFree(db, zStmt); v = sqlite3GetVdbe(pParse); sqlite3ChangeCookie(pParse, iDb); sqlite3VdbeAddOp2(v, OP_Expire, 0, 0); zWhere = sqlite3MPrintf(db, "name='%q' AND type='table'", pTab->zName); sqlite3VdbeAddParseSchemaOp(v, iDb, zWhere); iReg = ++pParse->nMem; sqlite3VdbeAddOp4(v, OP_String8, 0, iReg, 0, pTab->zName, 0); sqlite3VdbeAddOp2(v, OP_VCreate, iDb, iReg); } /* If we are rereading the sqlite_master table create the in-memory ** record of the table. The xConnect() method is not called until ** the first time the virtual table is used in an SQL statement. This ** allows a schema that contains virtual tables to be loaded before ** the required virtual table implementations are registered. */ |
︙ | ︙ | |||
114048 114049 114050 114051 114052 114053 114054 | } /* ** This function is used to set the schema of a virtual table. It is only ** valid to call this function from within the xCreate() or xConnect() of a ** virtual table module. */ | | | > > | 114800 114801 114802 114803 114804 114805 114806 114807 114808 114809 114810 114811 114812 114813 114814 114815 114816 114817 114818 114819 114820 114821 114822 114823 114824 | } /* ** This function is used to set the schema of a virtual table. It is only ** valid to call this function from within the xCreate() or xConnect() of a ** virtual table module. */ SQLITE_API int SQLITE_STDCALL sqlite3_declare_vtab(sqlite3 *db, const char *zCreateTable){ Parse *pParse; int rc = SQLITE_OK; Table *pTab; char *zErr = 0; #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) || zCreateTable==0 ){ return SQLITE_MISUSE_BKPT; } #endif sqlite3_mutex_enter(db->mutex); if( !db->pVtabCtx || !(pTab = db->pVtabCtx->pTab) ){ sqlite3Error(db, SQLITE_MISUSE); sqlite3_mutex_leave(db->mutex); return SQLITE_MISUSE_BKPT; } |
︙ | ︙ | |||
114121 114122 114123 114124 114125 114126 114127 | */ SQLITE_PRIVATE int sqlite3VtabCallDestroy(sqlite3 *db, int iDb, const char *zTab){ int rc = SQLITE_OK; Table *pTab; pTab = sqlite3FindTable(db, zTab, db->aDb[iDb].zName); if( ALWAYS(pTab!=0 && pTab->pVTable!=0) ){ | | > > > > | < < | > > | 114875 114876 114877 114878 114879 114880 114881 114882 114883 114884 114885 114886 114887 114888 114889 114890 114891 114892 114893 114894 114895 114896 114897 | */ SQLITE_PRIVATE int sqlite3VtabCallDestroy(sqlite3 *db, int iDb, const char *zTab){ int rc = SQLITE_OK; Table *pTab; pTab = sqlite3FindTable(db, zTab, db->aDb[iDb].zName); if( ALWAYS(pTab!=0 && pTab->pVTable!=0) ){ VTable *p; for(p=pTab->pVTable; p; p=p->pNext){ assert( p->pVtab ); if( p->pVtab->nRef>0 ){ return SQLITE_LOCKED; } } p = vtabDisconnectAll(db, pTab); rc = p->pMod->pModule->xDestroy(p->pVtab); /* Remove the sqlite3_vtab* from the aVTrans[] array, if applicable */ if( rc==SQLITE_OK ){ assert( pTab->pVTable==p && p->pNext==0 ); p->pVtab = 0; pTab->pVTable = 0; sqlite3VtabUnlock(p); } |
︙ | ︙ | |||
114410 114411 114412 114413 114414 114415 114416 | /* ** Return the ON CONFLICT resolution mode in effect for the virtual ** table update operation currently in progress. ** ** The results of this routine are undefined unless it is called from ** within an xUpdate method. */ | | | | 115168 115169 115170 115171 115172 115173 115174 115175 115176 115177 115178 115179 115180 115181 115182 115183 115184 115185 115186 115187 115188 115189 115190 115191 115192 115193 115194 115195 115196 115197 115198 115199 115200 | /* ** Return the ON CONFLICT resolution mode in effect for the virtual ** table update operation currently in progress. ** ** The results of this routine are undefined unless it is called from ** within an xUpdate method. */ SQLITE_API int SQLITE_STDCALL sqlite3_vtab_on_conflict(sqlite3 *db){ static const unsigned char aMap[] = { SQLITE_ROLLBACK, SQLITE_ABORT, SQLITE_FAIL, SQLITE_IGNORE, SQLITE_REPLACE }; #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT; #endif assert( OE_Rollback==1 && OE_Abort==2 && OE_Fail==3 ); assert( OE_Ignore==4 && OE_Replace==5 ); assert( db->vtabOnConflict>=1 && db->vtabOnConflict<=5 ); return (int)aMap[db->vtabOnConflict-1]; } /* ** Call from within the xCreate() or xConnect() methods to provide ** the SQLite core with additional information about the behavior ** of the virtual table being implemented. */ SQLITE_API int SQLITE_CDECL sqlite3_vtab_config(sqlite3 *db, int op, ...){ va_list ap; int rc = SQLITE_OK; #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT; #endif sqlite3_mutex_enter(db->mutex); |
︙ | ︙ | |||
114554 114555 114556 114557 114558 114559 114560 114561 114562 114563 114564 114565 114566 114567 | int iIdxCur; /* The VDBE cursor used to access pIdx */ int addrBrk; /* Jump here to break out of the loop */ int addrNxt; /* Jump here to start the next IN combination */ int addrSkip; /* Jump here for next iteration of skip-scan */ int addrCont; /* Jump here to continue with the next loop cycle */ int addrFirst; /* First instruction of interior of the loop */ int addrBody; /* Beginning of the body of this loop */ u8 iFrom; /* Which entry in the FROM clause */ u8 op, p3, p5; /* Opcode, P3 & P5 of the opcode that ends the loop */ int p1, p2; /* Operands of the opcode used to ends the loop */ union { /* Information that depends on pWLoop->wsFlags */ struct { int nIn; /* Number of entries in aInLoop[] */ struct InLoop { | > > | 115312 115313 115314 115315 115316 115317 115318 115319 115320 115321 115322 115323 115324 115325 115326 115327 | int iIdxCur; /* The VDBE cursor used to access pIdx */ int addrBrk; /* Jump here to break out of the loop */ int addrNxt; /* Jump here to start the next IN combination */ int addrSkip; /* Jump here for next iteration of skip-scan */ int addrCont; /* Jump here to continue with the next loop cycle */ int addrFirst; /* First instruction of interior of the loop */ int addrBody; /* Beginning of the body of this loop */ int iLikeRepCntr; /* LIKE range processing counter register */ int addrLikeRep; /* LIKE range processing address */ u8 iFrom; /* Which entry in the FROM clause */ u8 op, p3, p5; /* Opcode, P3 & P5 of the opcode that ends the loop */ int p1, p2; /* Operands of the opcode used to ends the loop */ union { /* Information that depends on pWLoop->wsFlags */ struct { int nIn; /* Number of entries in aInLoop[] */ struct InLoop { |
︙ | ︙ | |||
114738 114739 114740 114741 114742 114743 114744 | union { int leftColumn; /* Column number of X in "X <op> <expr>" */ WhereOrInfo *pOrInfo; /* Extra information if (eOperator & WO_OR)!=0 */ WhereAndInfo *pAndInfo; /* Extra information if (eOperator& WO_AND)!=0 */ } u; LogEst truthProb; /* Probability of truth for this expression */ u16 eOperator; /* A WO_xx value describing <op> */ | | | 115498 115499 115500 115501 115502 115503 115504 115505 115506 115507 115508 115509 115510 115511 115512 | union { int leftColumn; /* Column number of X in "X <op> <expr>" */ WhereOrInfo *pOrInfo; /* Extra information if (eOperator & WO_OR)!=0 */ WhereAndInfo *pAndInfo; /* Extra information if (eOperator& WO_AND)!=0 */ } u; LogEst truthProb; /* Probability of truth for this expression */ u16 eOperator; /* A WO_xx value describing <op> */ u16 wtFlags; /* TERM_xxx bit flags. See below */ u8 nChild; /* Number of children that must disable us */ WhereClause *pWC; /* The clause this term is part of */ Bitmask prereqRight; /* Bitmask of tables used by pExpr->pRight */ Bitmask prereqAll; /* Bitmask of tables referenced by pExpr */ }; /* |
︙ | ︙ | |||
114760 114761 114762 114763 114764 114765 114766 114767 114768 114769 114770 114771 114772 114773 | #define TERM_ANDINFO 0x20 /* Need to free the WhereTerm.u.pAndInfo obj */ #define TERM_OR_OK 0x40 /* Used during OR-clause processing */ #ifdef SQLITE_ENABLE_STAT3_OR_STAT4 # define TERM_VNULL 0x80 /* Manufactured x>NULL or x<=NULL term */ #else # define TERM_VNULL 0x00 /* Disabled if not using stat3 */ #endif /* ** An instance of the WhereScan object is used as an iterator for locating ** terms in the WHERE clause that are useful to the query planner. */ struct WhereScan { WhereClause *pOrigWC; /* Original, innermost WhereClause */ | > > > | 115520 115521 115522 115523 115524 115525 115526 115527 115528 115529 115530 115531 115532 115533 115534 115535 115536 | #define TERM_ANDINFO 0x20 /* Need to free the WhereTerm.u.pAndInfo obj */ #define TERM_OR_OK 0x40 /* Used during OR-clause processing */ #ifdef SQLITE_ENABLE_STAT3_OR_STAT4 # define TERM_VNULL 0x80 /* Manufactured x>NULL or x<=NULL term */ #else # define TERM_VNULL 0x00 /* Disabled if not using stat3 */ #endif #define TERM_LIKEOPT 0x100 /* Virtual terms from the LIKE optimization */ #define TERM_LIKECOND 0x200 /* Conditionally this LIKE operator term */ #define TERM_LIKE 0x400 /* The original LIKE operator */ /* ** An instance of the WhereScan object is used as an iterator for locating ** terms in the WHERE clause that are useful to the query planner. */ struct WhereScan { WhereClause *pOrigWC; /* Original, innermost WhereClause */ |
︙ | ︙ | |||
115135 115136 115137 115138 115139 115140 115141 | ** This is true even if this routine fails to allocate a new WhereTerm. ** ** WARNING: This routine might reallocate the space used to store ** WhereTerms. All pointers to WhereTerms should be invalidated after ** calling this routine. Such pointers may be reinitialized by referencing ** the pWC->a[] array. */ | | | 115898 115899 115900 115901 115902 115903 115904 115905 115906 115907 115908 115909 115910 115911 115912 | ** This is true even if this routine fails to allocate a new WhereTerm. ** ** WARNING: This routine might reallocate the space used to store ** WhereTerms. All pointers to WhereTerms should be invalidated after ** calling this routine. Such pointers may be reinitialized by referencing ** the pWC->a[] array. */ static int whereClauseInsert(WhereClause *pWC, Expr *p, u16 wtFlags){ WhereTerm *pTerm; int idx; testcase( wtFlags & TERM_VIRTUAL ); if( pWC->nTerm>=pWC->nSlot ){ WhereTerm *pOld = pWC->a; sqlite3 *db = pWC->pWInfo->pParse->db; pWC->a = sqlite3DbMallocRaw(db, sizeof(pWC->a[0])*pWC->nSlot*2 ); |
︙ | ︙ | |||
115560 115561 115562 115563 115564 115565 115566 | #ifndef SQLITE_OMIT_LIKE_OPTIMIZATION /* ** Check to see if the given expression is a LIKE or GLOB operator that ** can be optimized using inequality constraints. Return TRUE if it is ** so and false if not. ** ** In order for the operator to be optimizible, the RHS must be a string | | > > > > | 116323 116324 116325 116326 116327 116328 116329 116330 116331 116332 116333 116334 116335 116336 116337 116338 116339 116340 116341 | #ifndef SQLITE_OMIT_LIKE_OPTIMIZATION /* ** Check to see if the given expression is a LIKE or GLOB operator that ** can be optimized using inequality constraints. Return TRUE if it is ** so and false if not. ** ** In order for the operator to be optimizible, the RHS must be a string ** literal that does not begin with a wildcard. The LHS must be a column ** that may only be NULL, a string, or a BLOB, never a number. (This means ** that virtual tables cannot participate in the LIKE optimization.) If the ** collating sequence for the column on the LHS must be appropriate for ** the operator. */ static int isLikeOrGlob( Parse *pParse, /* Parsing and code generating context */ Expr *pExpr, /* Test this expression */ Expr **ppPrefix, /* Pointer to TK_STRING expression with pattern prefix */ int *pisComplete, /* True if the only wildcard is % in the last character */ int *pnoCase /* True if uppercase is equivalent to lowercase */ |
︙ | ︙ | |||
115589 115590 115591 115592 115593 115594 115595 | #ifdef SQLITE_EBCDIC if( *pnoCase ) return 0; #endif pList = pExpr->x.pList; pLeft = pList->a[1].pExpr; if( pLeft->op!=TK_COLUMN || sqlite3ExprAffinity(pLeft)!=SQLITE_AFF_TEXT | | | 116356 116357 116358 116359 116360 116361 116362 116363 116364 116365 116366 116367 116368 116369 116370 | #ifdef SQLITE_EBCDIC if( *pnoCase ) return 0; #endif pList = pExpr->x.pList; pLeft = pList->a[1].pExpr; if( pLeft->op!=TK_COLUMN || sqlite3ExprAffinity(pLeft)!=SQLITE_AFF_TEXT || IsVirtual(pLeft->pTab) /* Value might be numeric */ ){ /* IMP: R-02065-49465 The left-hand side of the LIKE or GLOB operator must ** be the name of an indexed column with TEXT affinity. */ return 0; } assert( pLeft->iColumn!=(-1) ); /* Because IPK never has AFF_TEXT */ |
︙ | ︙ | |||
115698 115699 115700 115701 115702 115703 115704 115705 115706 115707 115708 115709 115710 115711 | ** Mark term iChild as being a child of term iParent */ static void markTermAsChild(WhereClause *pWC, int iChild, int iParent){ pWC->a[iChild].iParent = iParent; pWC->a[iChild].truthProb = pWC->a[iParent].truthProb; pWC->a[iParent].nChild++; } #if !defined(SQLITE_OMIT_OR_OPTIMIZATION) && !defined(SQLITE_OMIT_SUBQUERY) /* ** Analyze a term that consists of two or more OR-connected ** subterms. So in: ** ** ... WHERE (a=5) AND (b=7 OR c=9 OR d=13) AND (d=13) | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 116465 116466 116467 116468 116469 116470 116471 116472 116473 116474 116475 116476 116477 116478 116479 116480 116481 116482 116483 116484 116485 116486 116487 116488 116489 116490 116491 116492 116493 116494 116495 116496 116497 116498 116499 116500 116501 116502 116503 116504 116505 116506 116507 116508 116509 116510 116511 116512 116513 116514 116515 116516 116517 116518 116519 116520 116521 116522 116523 116524 116525 116526 116527 116528 116529 116530 116531 116532 116533 116534 116535 116536 116537 116538 116539 116540 116541 116542 116543 116544 116545 116546 116547 116548 116549 116550 116551 | ** Mark term iChild as being a child of term iParent */ static void markTermAsChild(WhereClause *pWC, int iChild, int iParent){ pWC->a[iChild].iParent = iParent; pWC->a[iChild].truthProb = pWC->a[iParent].truthProb; pWC->a[iParent].nChild++; } /* ** Return the N-th AND-connected subterm of pTerm. Or if pTerm is not ** a conjunction, then return just pTerm when N==0. If N is exceeds ** the number of available subterms, return NULL. */ static WhereTerm *whereNthSubterm(WhereTerm *pTerm, int N){ if( pTerm->eOperator!=WO_AND ){ return N==0 ? pTerm : 0; } if( N<pTerm->u.pAndInfo->wc.nTerm ){ return &pTerm->u.pAndInfo->wc.a[N]; } return 0; } /* ** Subterms pOne and pTwo are contained within WHERE clause pWC. The ** two subterms are in disjunction - they are OR-ed together. ** ** If these two terms are both of the form: "A op B" with the same ** A and B values but different operators and if the operators are ** compatible (if one is = and the other is <, for example) then ** add a new virtual AND term to pWC that is the combination of the ** two. ** ** Some examples: ** ** x<y OR x=y --> x<=y ** x=y OR x=y --> x=y ** x<=y OR x<y --> x<=y ** ** The following is NOT generated: ** ** x<y OR x>y --> x!=y */ static void whereCombineDisjuncts( SrcList *pSrc, /* the FROM clause */ WhereClause *pWC, /* The complete WHERE clause */ WhereTerm *pOne, /* First disjunct */ WhereTerm *pTwo /* Second disjunct */ ){ u16 eOp = pOne->eOperator | pTwo->eOperator; sqlite3 *db; /* Database connection (for malloc) */ Expr *pNew; /* New virtual expression */ int op; /* Operator for the combined expression */ int idxNew; /* Index in pWC of the next virtual term */ if( (pOne->eOperator & (WO_EQ|WO_LT|WO_LE|WO_GT|WO_GE))==0 ) return; if( (pTwo->eOperator & (WO_EQ|WO_LT|WO_LE|WO_GT|WO_GE))==0 ) return; if( (eOp & (WO_EQ|WO_LT|WO_LE))!=eOp && (eOp & (WO_EQ|WO_GT|WO_GE))!=eOp ) return; assert( pOne->pExpr->pLeft!=0 && pOne->pExpr->pRight!=0 ); assert( pTwo->pExpr->pLeft!=0 && pTwo->pExpr->pRight!=0 ); if( sqlite3ExprCompare(pOne->pExpr->pLeft, pTwo->pExpr->pLeft, -1) ) return; if( sqlite3ExprCompare(pOne->pExpr->pRight, pTwo->pExpr->pRight, -1) )return; /* If we reach this point, it means the two subterms can be combined */ if( (eOp & (eOp-1))!=0 ){ if( eOp & (WO_LT|WO_LE) ){ eOp = WO_LE; }else{ assert( eOp & (WO_GT|WO_GE) ); eOp = WO_GE; } } db = pWC->pWInfo->pParse->db; pNew = sqlite3ExprDup(db, pOne->pExpr, 0); if( pNew==0 ) return; for(op=TK_EQ; eOp!=(WO_EQ<<(op-TK_EQ)); op++){ assert( op<TK_GE ); } pNew->op = op; idxNew = whereClauseInsert(pWC, pNew, TERM_VIRTUAL|TERM_DYNAMIC); exprAnalyze(pSrc, pWC, idxNew); } #if !defined(SQLITE_OMIT_OR_OPTIMIZATION) && !defined(SQLITE_OMIT_SUBQUERY) /* ** Analyze a term that consists of two or more OR-connected ** subterms. So in: ** ** ... WHERE (a=5) AND (b=7 OR c=9 OR d=13) AND (d=13) |
︙ | ︙ | |||
115723 115724 115725 115726 115727 115728 115729 115730 115731 115732 115733 115734 115735 115736 115737 115738 115739 115740 115741 115742 115743 115744 115745 115746 115747 115748 115749 115750 115751 | ** Examples of terms under analysis: ** ** (A) t1.x=t2.y OR t1.x=t2.z OR t1.y=15 OR t1.z=t3.a+5 ** (B) x=expr1 OR expr2=x OR x=expr3 ** (C) t1.x=t2.y OR (t1.x=t2.z AND t1.y=15) ** (D) x=expr1 OR (y>11 AND y<22 AND z LIKE '*hello*') ** (E) (p.a=1 AND q.b=2 AND r.c=3) OR (p.x=4 AND q.y=5 AND r.z=6) ** ** CASE 1: ** ** If all subterms are of the form T.C=expr for some single column of C and ** a single table T (as shown in example B above) then create a new virtual ** term that is an equivalent IN expression. In other words, if the term ** being analyzed is: ** ** x = expr1 OR expr2 = x OR x = expr3 ** ** then create a new virtual term like this: ** ** x IN (expr1,expr2,expr3) ** ** CASE 2: ** ** If all subterms are indexable by a single table T, then set ** ** WhereTerm.eOperator = WO_OR ** WhereTerm.u.pOrInfo->indexable |= the cursor number for table T ** ** A subterm is "indexable" if it is of the form | > > > > > > > > > > > | 116563 116564 116565 116566 116567 116568 116569 116570 116571 116572 116573 116574 116575 116576 116577 116578 116579 116580 116581 116582 116583 116584 116585 116586 116587 116588 116589 116590 116591 116592 116593 116594 116595 116596 116597 116598 116599 116600 116601 116602 | ** Examples of terms under analysis: ** ** (A) t1.x=t2.y OR t1.x=t2.z OR t1.y=15 OR t1.z=t3.a+5 ** (B) x=expr1 OR expr2=x OR x=expr3 ** (C) t1.x=t2.y OR (t1.x=t2.z AND t1.y=15) ** (D) x=expr1 OR (y>11 AND y<22 AND z LIKE '*hello*') ** (E) (p.a=1 AND q.b=2 AND r.c=3) OR (p.x=4 AND q.y=5 AND r.z=6) ** (F) x>A OR (x=A AND y>=B) ** ** CASE 1: ** ** If all subterms are of the form T.C=expr for some single column of C and ** a single table T (as shown in example B above) then create a new virtual ** term that is an equivalent IN expression. In other words, if the term ** being analyzed is: ** ** x = expr1 OR expr2 = x OR x = expr3 ** ** then create a new virtual term like this: ** ** x IN (expr1,expr2,expr3) ** ** CASE 2: ** ** If there are exactly two disjuncts one side has x>A and the other side ** has x=A (for the same x and A) then add a new virtual conjunct term to the ** WHERE clause of the form "x>=A". Example: ** ** x>A OR (x=A AND y>B) adds: x>=A ** ** The added conjunct can sometimes be helpful in query planning. ** ** CASE 3: ** ** If all subterms are indexable by a single table T, then set ** ** WhereTerm.eOperator = WO_OR ** WhereTerm.u.pOrInfo->indexable |= the cursor number for table T ** ** A subterm is "indexable" if it is of the form |
︙ | ︙ | |||
115865 115866 115867 115868 115869 115870 115871 | }else{ chngToIN &= b; } } } /* | | > > > > > > > > > > > > > > | 116716 116717 116718 116719 116720 116721 116722 116723 116724 116725 116726 116727 116728 116729 116730 116731 116732 116733 116734 116735 116736 116737 116738 116739 116740 116741 116742 116743 116744 116745 116746 116747 116748 | }else{ chngToIN &= b; } } } /* ** Record the set of tables that satisfy case 3. The set might be ** empty. */ pOrInfo->indexable = indexable; pTerm->eOperator = indexable==0 ? 0 : WO_OR; /* For a two-way OR, attempt to implementation case 2. */ if( indexable && pOrWc->nTerm==2 ){ int iOne = 0; WhereTerm *pOne; while( (pOne = whereNthSubterm(&pOrWc->a[0],iOne++))!=0 ){ int iTwo = 0; WhereTerm *pTwo; while( (pTwo = whereNthSubterm(&pOrWc->a[1],iTwo++))!=0 ){ whereCombineDisjuncts(pSrc, pWC, pOne, pTwo); } } } /* ** chngToIN holds a set of tables that *might* satisfy case 1. But ** we have to do some additional checking to see if case 1 really ** is satisfied. ** ** chngToIN will hold either 0, 1, or 2 bits. The 0-bit case means |
︙ | ︙ | |||
116000 116001 116002 116003 116004 116005 116006 | testcase( idxNew==0 ); exprAnalyze(pSrc, pWC, idxNew); pTerm = &pWC->a[idxTerm]; markTermAsChild(pWC, idxNew, idxTerm); }else{ sqlite3ExprListDelete(db, pList); } | | | 116865 116866 116867 116868 116869 116870 116871 116872 116873 116874 116875 116876 116877 116878 116879 | testcase( idxNew==0 ); exprAnalyze(pSrc, pWC, idxNew); pTerm = &pWC->a[idxTerm]; markTermAsChild(pWC, idxNew, idxTerm); }else{ sqlite3ExprListDelete(db, pList); } pTerm->eOperator = WO_NOOP; /* case 1 trumps case 3 */ } } } #endif /* !SQLITE_OMIT_OR_OPTIMIZATION && !SQLITE_OMIT_SUBQUERY */ /* ** The input to this routine is an WhereTerm structure with only the |
︙ | ︙ | |||
116038 116039 116040 116041 116042 116043 116044 | WhereMaskSet *pMaskSet; /* Set of table index masks */ Expr *pExpr; /* The expression to be analyzed */ Bitmask prereqLeft; /* Prerequesites of the pExpr->pLeft */ Bitmask prereqAll; /* Prerequesites of pExpr */ Bitmask extraRight = 0; /* Extra dependencies on LEFT JOIN */ Expr *pStr1 = 0; /* RHS of LIKE/GLOB operator */ int isComplete = 0; /* RHS of LIKE/GLOB ends with wildcard */ | | | 116903 116904 116905 116906 116907 116908 116909 116910 116911 116912 116913 116914 116915 116916 116917 | WhereMaskSet *pMaskSet; /* Set of table index masks */ Expr *pExpr; /* The expression to be analyzed */ Bitmask prereqLeft; /* Prerequesites of the pExpr->pLeft */ Bitmask prereqAll; /* Prerequesites of pExpr */ Bitmask extraRight = 0; /* Extra dependencies on LEFT JOIN */ Expr *pStr1 = 0; /* RHS of LIKE/GLOB operator */ int isComplete = 0; /* RHS of LIKE/GLOB ends with wildcard */ int noCase = 0; /* uppercase equivalent to lowercase */ int op; /* Top-level operator. pExpr->op */ Parse *pParse = pWInfo->pParse; /* Parsing context */ sqlite3 *db = pParse->db; /* Database connection */ if( db->mallocFailed ){ return; } |
︙ | ︙ | |||
116176 116177 116178 116179 116180 116181 116182 | } #endif /* SQLITE_OMIT_OR_OPTIMIZATION */ #ifndef SQLITE_OMIT_LIKE_OPTIMIZATION /* Add constraints to reduce the search space on a LIKE or GLOB ** operator. ** | | | | > > > | > > > > > > > > > > > > > > > > | < | | | | | | 117041 117042 117043 117044 117045 117046 117047 117048 117049 117050 117051 117052 117053 117054 117055 117056 117057 117058 117059 117060 117061 117062 117063 117064 117065 117066 117067 117068 117069 117070 117071 117072 117073 117074 117075 117076 117077 117078 117079 117080 117081 117082 117083 117084 117085 117086 117087 117088 117089 117090 117091 117092 117093 117094 117095 117096 117097 117098 117099 117100 117101 117102 117103 117104 117105 117106 117107 117108 117109 117110 117111 117112 117113 117114 117115 117116 117117 117118 117119 117120 117121 117122 117123 117124 | } #endif /* SQLITE_OMIT_OR_OPTIMIZATION */ #ifndef SQLITE_OMIT_LIKE_OPTIMIZATION /* Add constraints to reduce the search space on a LIKE or GLOB ** operator. ** ** A like pattern of the form "x LIKE 'aBc%'" is changed into constraints ** ** x>='ABC' AND x<'abd' AND x LIKE 'aBc%' ** ** The last character of the prefix "abc" is incremented to form the ** termination condition "abd". If case is not significant (the default ** for LIKE) then the lower-bound is made all uppercase and the upper- ** bound is made all lowercase so that the bounds also work when comparing ** BLOBs. */ if( pWC->op==TK_AND && isLikeOrGlob(pParse, pExpr, &pStr1, &isComplete, &noCase) ){ Expr *pLeft; /* LHS of LIKE/GLOB operator */ Expr *pStr2; /* Copy of pStr1 - RHS of LIKE/GLOB operator */ Expr *pNewExpr1; Expr *pNewExpr2; int idxNew1; int idxNew2; const char *zCollSeqName; /* Name of collating sequence */ const u16 wtFlags = TERM_LIKEOPT | TERM_VIRTUAL | TERM_DYNAMIC; pLeft = pExpr->x.pList->a[1].pExpr; pStr2 = sqlite3ExprDup(db, pStr1, 0); /* Convert the lower bound to upper-case and the upper bound to ** lower-case (upper-case is less than lower-case in ASCII) so that ** the range constraints also work for BLOBs */ if( noCase && !pParse->db->mallocFailed ){ int i; char c; pTerm->wtFlags |= TERM_LIKE; for(i=0; (c = pStr1->u.zToken[i])!=0; i++){ pStr1->u.zToken[i] = sqlite3Toupper(c); pStr2->u.zToken[i] = sqlite3Tolower(c); } } if( !db->mallocFailed ){ u8 c, *pC; /* Last character before the first wildcard */ pC = (u8*)&pStr2->u.zToken[sqlite3Strlen30(pStr2->u.zToken)-1]; c = *pC; if( noCase ){ /* The point is to increment the last character before the first ** wildcard. But if we increment '@', that will push it into the ** alphabetic range where case conversions will mess up the ** inequality. To avoid this, make sure to also run the full ** LIKE on all candidate expressions by clearing the isComplete flag */ if( c=='A'-1 ) isComplete = 0; c = sqlite3UpperToLower[c]; } *pC = c + 1; } zCollSeqName = noCase ? "NOCASE" : "BINARY"; pNewExpr1 = sqlite3ExprDup(db, pLeft, 0); pNewExpr1 = sqlite3PExpr(pParse, TK_GE, sqlite3ExprAddCollateString(pParse,pNewExpr1,zCollSeqName), pStr1, 0); transferJoinMarkings(pNewExpr1, pExpr); idxNew1 = whereClauseInsert(pWC, pNewExpr1, wtFlags); testcase( idxNew1==0 ); exprAnalyze(pSrc, pWC, idxNew1); pNewExpr2 = sqlite3ExprDup(db, pLeft, 0); pNewExpr2 = sqlite3PExpr(pParse, TK_LT, sqlite3ExprAddCollateString(pParse,pNewExpr2,zCollSeqName), pStr2, 0); transferJoinMarkings(pNewExpr2, pExpr); idxNew2 = whereClauseInsert(pWC, pNewExpr2, wtFlags); testcase( idxNew2==0 ); exprAnalyze(pSrc, pWC, idxNew2); pTerm = &pWC->a[idxTerm]; if( isComplete ){ markTermAsChild(pWC, idxNew1, idxTerm); markTermAsChild(pWC, idxNew2, idxTerm); } |
︙ | ︙ | |||
116545 116546 116547 116548 116549 116550 116551 116552 116553 | ** and used to match WHERE clause constraints */ nKeyCol = 0; pTable = pSrc->pTab; pWCEnd = &pWC->a[pWC->nTerm]; pLoop = pLevel->pWLoop; idxCols = 0; for(pTerm=pWC->a; pTerm<pWCEnd; pTerm++){ if( pLoop->prereq==0 && (pTerm->wtFlags & TERM_VIRTUAL)==0 | > > > > | | | | 117428 117429 117430 117431 117432 117433 117434 117435 117436 117437 117438 117439 117440 117441 117442 117443 117444 117445 117446 117447 117448 117449 117450 117451 | ** and used to match WHERE clause constraints */ nKeyCol = 0; pTable = pSrc->pTab; pWCEnd = &pWC->a[pWC->nTerm]; pLoop = pLevel->pWLoop; idxCols = 0; for(pTerm=pWC->a; pTerm<pWCEnd; pTerm++){ Expr *pExpr = pTerm->pExpr; assert( !ExprHasProperty(pExpr, EP_FromJoin) /* prereq always non-zero */ || pExpr->iRightJoinTable!=pSrc->iCursor /* for the right-hand */ || pLoop->prereq!=0 ); /* table of a LEFT JOIN */ if( pLoop->prereq==0 && (pTerm->wtFlags & TERM_VIRTUAL)==0 && !ExprHasProperty(pExpr, EP_FromJoin) && sqlite3ExprIsTableConstant(pExpr, pSrc->iCursor) ){ pPartial = sqlite3ExprAnd(pParse->db, pPartial, sqlite3ExprDup(pParse->db, pExpr, 0)); } if( termCanDriveIndex(pTerm, pSrc, notReady) ){ int iCol = pTerm->u.leftColumn; Bitmask cMask = iCol>=BMS ? MASKBIT(BMS-1) : MASKBIT(iCol); testcase( iCol==BMS ); testcase( iCol==BMS-1 ); if( !sentWarning ){ |
︙ | ︙ | |||
116837 116838 116839 116840 116841 116842 116843 | #endif /* !defined(SQLITE_OMIT_VIRTUALTABLE) */ #ifdef SQLITE_ENABLE_STAT3_OR_STAT4 /* ** Estimate the location of a particular key among all keys in an ** index. Store the results in aStat as follows: ** | | | | > > > > > < > > < | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | > > > > > > > > > > > > > | > > > > > | > | > > | | | > > | | > | > | | > > | | | | > > > > > > > > > > > | | | > > < < < < > > > > > | | < | < | < | > > > > | 117724 117725 117726 117727 117728 117729 117730 117731 117732 117733 117734 117735 117736 117737 117738 117739 117740 117741 117742 117743 117744 117745 117746 117747 117748 117749 117750 117751 117752 117753 117754 117755 117756 117757 117758 117759 117760 117761 117762 117763 117764 117765 117766 117767 117768 117769 117770 117771 117772 117773 117774 117775 117776 117777 117778 117779 117780 117781 117782 117783 117784 117785 117786 117787 117788 117789 117790 117791 117792 117793 117794 117795 117796 117797 117798 117799 117800 117801 117802 117803 117804 117805 117806 117807 117808 117809 117810 117811 117812 117813 117814 117815 117816 117817 117818 117819 117820 117821 117822 117823 117824 117825 117826 117827 117828 117829 117830 117831 117832 117833 117834 117835 117836 117837 117838 117839 117840 117841 117842 117843 117844 117845 117846 117847 117848 117849 117850 117851 117852 117853 117854 117855 117856 117857 117858 117859 117860 117861 117862 117863 117864 117865 117866 117867 117868 117869 117870 117871 117872 117873 117874 117875 117876 117877 117878 117879 117880 117881 117882 117883 117884 117885 117886 117887 117888 117889 117890 117891 117892 117893 117894 117895 117896 117897 117898 117899 117900 117901 117902 117903 117904 117905 117906 117907 117908 117909 117910 117911 117912 117913 117914 117915 117916 117917 117918 117919 117920 117921 117922 117923 | #endif /* !defined(SQLITE_OMIT_VIRTUALTABLE) */ #ifdef SQLITE_ENABLE_STAT3_OR_STAT4 /* ** Estimate the location of a particular key among all keys in an ** index. Store the results in aStat as follows: ** ** aStat[0] Est. number of rows less than pRec ** aStat[1] Est. number of rows equal to pRec ** ** Return the index of the sample that is the smallest sample that ** is greater than or equal to pRec. Note that this index is not an index ** into the aSample[] array - it is an index into a virtual set of samples ** based on the contents of aSample[] and the number of fields in record ** pRec. */ static int whereKeyStats( Parse *pParse, /* Database connection */ Index *pIdx, /* Index to consider domain of */ UnpackedRecord *pRec, /* Vector of values to consider */ int roundUp, /* Round up if true. Round down if false */ tRowcnt *aStat /* OUT: stats written here */ ){ IndexSample *aSample = pIdx->aSample; int iCol; /* Index of required stats in anEq[] etc. */ int i; /* Index of first sample >= pRec */ int iSample; /* Smallest sample larger than or equal to pRec */ int iMin = 0; /* Smallest sample not yet tested */ int iTest; /* Next sample to test */ int res; /* Result of comparison operation */ int nField; /* Number of fields in pRec */ tRowcnt iLower = 0; /* anLt[] + anEq[] of largest sample pRec is > */ #ifndef SQLITE_DEBUG UNUSED_PARAMETER( pParse ); #endif assert( pRec!=0 ); assert( pIdx->nSample>0 ); assert( pRec->nField>0 && pRec->nField<=pIdx->nSampleCol ); /* Do a binary search to find the first sample greater than or equal ** to pRec. If pRec contains a single field, the set of samples to search ** is simply the aSample[] array. If the samples in aSample[] contain more ** than one fields, all fields following the first are ignored. ** ** If pRec contains N fields, where N is more than one, then as well as the ** samples in aSample[] (truncated to N fields), the search also has to ** consider prefixes of those samples. For example, if the set of samples ** in aSample is: ** ** aSample[0] = (a, 5) ** aSample[1] = (a, 10) ** aSample[2] = (b, 5) ** aSample[3] = (c, 100) ** aSample[4] = (c, 105) ** ** Then the search space should ideally be the samples above and the ** unique prefixes [a], [b] and [c]. But since that is hard to organize, ** the code actually searches this set: ** ** 0: (a) ** 1: (a, 5) ** 2: (a, 10) ** 3: (a, 10) ** 4: (b) ** 5: (b, 5) ** 6: (c) ** 7: (c, 100) ** 8: (c, 105) ** 9: (c, 105) ** ** For each sample in the aSample[] array, N samples are present in the ** effective sample array. In the above, samples 0 and 1 are based on ** sample aSample[0]. Samples 2 and 3 on aSample[1] etc. ** ** Often, sample i of each block of N effective samples has (i+1) fields. ** Except, each sample may be extended to ensure that it is greater than or ** equal to the previous sample in the array. For example, in the above, ** sample 2 is the first sample of a block of N samples, so at first it ** appears that it should be 1 field in size. However, that would make it ** smaller than sample 1, so the binary search would not work. As a result, ** it is extended to two fields. The duplicates that this creates do not ** cause any problems. */ nField = pRec->nField; iCol = 0; iSample = pIdx->nSample * nField; do{ int iSamp; /* Index in aSample[] of test sample */ int n; /* Number of fields in test sample */ iTest = (iMin+iSample)/2; iSamp = iTest / nField; if( iSamp>0 ){ /* The proposed effective sample is a prefix of sample aSample[iSamp]. ** Specifically, the shortest prefix of at least (1 + iTest%nField) ** fields that is greater than the previous effective sample. */ for(n=(iTest % nField) + 1; n<nField; n++){ if( aSample[iSamp-1].anLt[n-1]!=aSample[iSamp].anLt[n-1] ) break; } }else{ n = iTest + 1; } pRec->nField = n; res = sqlite3VdbeRecordCompare(aSample[iSamp].n, aSample[iSamp].p, pRec); if( res<0 ){ iLower = aSample[iSamp].anLt[n-1] + aSample[iSamp].anEq[n-1]; iMin = iTest+1; }else if( res==0 && n<nField ){ iLower = aSample[iSamp].anLt[n-1]; iMin = iTest+1; res = -1; }else{ iSample = iTest; iCol = n-1; } }while( res && iMin<iSample ); i = iSample / nField; #ifdef SQLITE_DEBUG /* The following assert statements check that the binary search code ** above found the right answer. This block serves no purpose other ** than to invoke the asserts. */ if( pParse->db->mallocFailed==0 ){ if( res==0 ){ /* If (res==0) is true, then pRec must be equal to sample i. */ assert( i<pIdx->nSample ); assert( iCol==nField-1 ); pRec->nField = nField; assert( 0==sqlite3VdbeRecordCompare(aSample[i].n, aSample[i].p, pRec) || pParse->db->mallocFailed ); }else{ /* Unless i==pIdx->nSample, indicating that pRec is larger than ** all samples in the aSample[] array, pRec must be smaller than the ** (iCol+1) field prefix of sample i. */ assert( i<=pIdx->nSample && i>=0 ); pRec->nField = iCol+1; assert( i==pIdx->nSample || sqlite3VdbeRecordCompare(aSample[i].n, aSample[i].p, pRec)>0 || pParse->db->mallocFailed ); /* if i==0 and iCol==0, then record pRec is smaller than all samples ** in the aSample[] array. Otherwise, if (iCol>0) then pRec must ** be greater than or equal to the (iCol) field prefix of sample i. ** If (i>0), then pRec must also be greater than sample (i-1). */ if( iCol>0 ){ pRec->nField = iCol; assert( sqlite3VdbeRecordCompare(aSample[i].n, aSample[i].p, pRec)<=0 || pParse->db->mallocFailed ); } if( i>0 ){ pRec->nField = nField; assert( sqlite3VdbeRecordCompare(aSample[i-1].n, aSample[i-1].p, pRec)<0 || pParse->db->mallocFailed ); } } } #endif /* ifdef SQLITE_DEBUG */ if( res==0 ){ /* Record pRec is equal to sample i */ assert( iCol==nField-1 ); aStat[0] = aSample[i].anLt[iCol]; aStat[1] = aSample[i].anEq[iCol]; }else{ /* At this point, the (iCol+1) field prefix of aSample[i] is the first ** sample that is greater than pRec. Or, if i==pIdx->nSample then pRec ** is larger than all samples in the array. */ tRowcnt iUpper, iGap; if( i>=pIdx->nSample ){ iUpper = sqlite3LogEstToInt(pIdx->aiRowLogEst[0]); }else{ iUpper = aSample[i].anLt[iCol]; } if( iLower>=iUpper ){ iGap = 0; }else{ iGap = iUpper - iLower; } if( roundUp ){ iGap = (iGap*2)/3; }else{ iGap = iGap/3; } aStat[0] = iLower + iGap; aStat[1] = pIdx->aAvgEq[iCol]; } /* Restore the pRec->nField value before returning. */ pRec->nField = nField; return i; } #endif /* SQLITE_ENABLE_STAT3_OR_STAT4 */ /* ** If it is not NULL, pTerm is a term that provides an upper or lower ** bound on a range scan. Without considering pTerm, it is estimated |
︙ | ︙ | |||
117398 117399 117400 117401 117402 117403 117404 117405 117406 | ** Disabling a term causes that term to not be tested in the inner loop ** of the join. Disabling is an optimization. When terms are satisfied ** by indices, we disable them to prevent redundant tests in the inner ** loop. We would get the correct results if nothing were ever disabled, ** but joins might run a little slower. The trick is to disable as much ** as we can without disabling too much. If we disabled in (1), we'd get ** the wrong answer. See ticket #813. */ static void disableTerm(WhereLevel *pLevel, WhereTerm *pTerm){ | > > > > > > > > > > > > > > > > > > > > | > > > | > | | | | < < > | 118383 118384 118385 118386 118387 118388 118389 118390 118391 118392 118393 118394 118395 118396 118397 118398 118399 118400 118401 118402 118403 118404 118405 118406 118407 118408 118409 118410 118411 118412 118413 118414 118415 118416 118417 118418 118419 118420 118421 118422 118423 118424 118425 118426 118427 118428 118429 118430 118431 118432 118433 | ** Disabling a term causes that term to not be tested in the inner loop ** of the join. Disabling is an optimization. When terms are satisfied ** by indices, we disable them to prevent redundant tests in the inner ** loop. We would get the correct results if nothing were ever disabled, ** but joins might run a little slower. The trick is to disable as much ** as we can without disabling too much. If we disabled in (1), we'd get ** the wrong answer. See ticket #813. ** ** If all the children of a term are disabled, then that term is also ** automatically disabled. In this way, terms get disabled if derived ** virtual terms are tested first. For example: ** ** x GLOB 'abc*' AND x>='abc' AND x<'acd' ** \___________/ \______/ \_____/ ** parent child1 child2 ** ** Only the parent term was in the original WHERE clause. The child1 ** and child2 terms were added by the LIKE optimization. If both of ** the virtual child terms are valid, then testing of the parent can be ** skipped. ** ** Usually the parent term is marked as TERM_CODED. But if the parent ** term was originally TERM_LIKE, then the parent gets TERM_LIKECOND instead. ** The TERM_LIKECOND marking indicates that the term should be coded inside ** a conditional such that is only evaluated on the second pass of a ** LIKE-optimization loop, when scanning BLOBs instead of strings. */ static void disableTerm(WhereLevel *pLevel, WhereTerm *pTerm){ int nLoop = 0; while( pTerm && (pTerm->wtFlags & TERM_CODED)==0 && (pLevel->iLeftJoin==0 || ExprHasProperty(pTerm->pExpr, EP_FromJoin)) && (pLevel->notReady & pTerm->prereqAll)==0 ){ if( nLoop && (pTerm->wtFlags & TERM_LIKE)!=0 ){ pTerm->wtFlags |= TERM_LIKECOND; }else{ pTerm->wtFlags |= TERM_CODED; } if( pTerm->iParent<0 ) break; pTerm = &pTerm->pWC->a[pTerm->iParent]; pTerm->nChild--; if( pTerm->nChild!=0 ) break; nLoop++; } } /* ** Code an OP_Affinity opcode to apply the column affinity string zAff ** to the n registers starting at base. ** |
︙ | ︙ | |||
117895 117896 117897 117898 117899 117900 117901 | v, addrExplain, pLvl->addrBody, pLvl->addrVisit, pLoop->nOut, zObj ); } #else # define addScanStatus(a, b, c, d) ((void)d) #endif | > > > > > > > > > > > > > > > > > > > > > > > > > > | > | 118903 118904 118905 118906 118907 118908 118909 118910 118911 118912 118913 118914 118915 118916 118917 118918 118919 118920 118921 118922 118923 118924 118925 118926 118927 118928 118929 118930 118931 118932 118933 118934 118935 118936 118937 118938 118939 118940 118941 118942 118943 118944 | v, addrExplain, pLvl->addrBody, pLvl->addrVisit, pLoop->nOut, zObj ); } #else # define addScanStatus(a, b, c, d) ((void)d) #endif /* ** If the most recently coded instruction is a constant range contraint ** that originated from the LIKE optimization, then change the P3 to be ** pLoop->iLikeRepCntr and set P5. ** ** The LIKE optimization trys to evaluate "x LIKE 'abc%'" as a range ** expression: "x>='ABC' AND x<'abd'". But this requires that the range ** scan loop run twice, once for strings and a second time for BLOBs. ** The OP_String opcodes on the second pass convert the upper and lower ** bound string contants to blobs. This routine makes the necessary changes ** to the OP_String opcodes for that to happen. */ static void whereLikeOptimizationStringFixup( Vdbe *v, /* prepared statement under construction */ WhereLevel *pLevel, /* The loop that contains the LIKE operator */ WhereTerm *pTerm /* The upper or lower bound just coded */ ){ if( pTerm->wtFlags & TERM_LIKEOPT ){ VdbeOp *pOp; assert( pLevel->iLikeRepCntr>0 ); pOp = sqlite3VdbeGetOp(v, -1); assert( pOp!=0 ); assert( pOp->opcode==OP_String8 || pTerm->pWC->pWInfo->pParse->db->mallocFailed ); pOp->p3 = pLevel->iLikeRepCntr; pOp->p5 = 1; } } /* ** Generate code for the start of the iLevel-th loop in the WHERE clause ** implementation described by pWInfo. */ static Bitmask codeOneLoopStart( WhereInfo *pWInfo, /* Complete information about the WHERE clause */ |
︙ | ︙ | |||
118225 118226 118227 118228 118229 118230 118231 118232 118233 118234 118235 118236 118237 118238 118239 118240 118241 118242 | /* Find any inequality constraint terms for the start and end ** of the range. */ j = nEq; if( pLoop->wsFlags & WHERE_BTM_LIMIT ){ pRangeStart = pLoop->aLTerm[j++]; nExtraReg = 1; } if( pLoop->wsFlags & WHERE_TOP_LIMIT ){ pRangeEnd = pLoop->aLTerm[j++]; nExtraReg = 1; if( pRangeStart==0 && (j = pIdx->aiColumn[nEq])>=0 && pIdx->pTable->aCol[j].notNull==0 ){ bSeekPastNull = 1; } } | > > > > > > > > > > > > > > > | 119260 119261 119262 119263 119264 119265 119266 119267 119268 119269 119270 119271 119272 119273 119274 119275 119276 119277 119278 119279 119280 119281 119282 119283 119284 119285 119286 119287 119288 119289 119290 119291 119292 | /* Find any inequality constraint terms for the start and end ** of the range. */ j = nEq; if( pLoop->wsFlags & WHERE_BTM_LIMIT ){ pRangeStart = pLoop->aLTerm[j++]; nExtraReg = 1; /* Like optimization range constraints always occur in pairs */ assert( (pRangeStart->wtFlags & TERM_LIKEOPT)==0 || (pLoop->wsFlags & WHERE_TOP_LIMIT)!=0 ); } if( pLoop->wsFlags & WHERE_TOP_LIMIT ){ pRangeEnd = pLoop->aLTerm[j++]; nExtraReg = 1; if( (pRangeEnd->wtFlags & TERM_LIKEOPT)!=0 ){ assert( pRangeStart!=0 ); /* LIKE opt constraints */ assert( pRangeStart->wtFlags & TERM_LIKEOPT ); /* occur in pairs */ pLevel->iLikeRepCntr = ++pParse->nMem; testcase( bRev ); testcase( pIdx->aSortOrder[nEq]==SQLITE_SO_DESC ); sqlite3VdbeAddOp2(v, OP_Integer, bRev ^ (pIdx->aSortOrder[nEq]==SQLITE_SO_DESC), pLevel->iLikeRepCntr); VdbeComment((v, "LIKE loop counter")); pLevel->addrLikeRep = sqlite3VdbeCurrentAddr(v); } if( pRangeStart==0 && (j = pIdx->aiColumn[nEq])>=0 && pIdx->pTable->aCol[j].notNull==0 ){ bSeekPastNull = 1; } } |
︙ | ︙ | |||
118271 118272 118273 118274 118275 118276 118277 118278 118279 118280 118281 118282 118283 118284 | start_constraints = pRangeStart || nEq>0; /* Seek the index cursor to the start of the range. */ nConstraint = nEq; if( pRangeStart ){ Expr *pRight = pRangeStart->pExpr->pRight; sqlite3ExprCode(pParse, pRight, regBase+nEq); if( (pRangeStart->wtFlags & TERM_VNULL)==0 && sqlite3ExprCanBeNull(pRight) ){ sqlite3VdbeAddOp2(v, OP_IsNull, regBase+nEq, addrNxt); VdbeCoverage(v); } if( zStartAff ){ | > | 119321 119322 119323 119324 119325 119326 119327 119328 119329 119330 119331 119332 119333 119334 119335 | start_constraints = pRangeStart || nEq>0; /* Seek the index cursor to the start of the range. */ nConstraint = nEq; if( pRangeStart ){ Expr *pRight = pRangeStart->pExpr->pRight; sqlite3ExprCode(pParse, pRight, regBase+nEq); whereLikeOptimizationStringFixup(v, pLevel, pRangeStart); if( (pRangeStart->wtFlags & TERM_VNULL)==0 && sqlite3ExprCanBeNull(pRight) ){ sqlite3VdbeAddOp2(v, OP_IsNull, regBase+nEq, addrNxt); VdbeCoverage(v); } if( zStartAff ){ |
︙ | ︙ | |||
118316 118317 118318 118319 118320 118321 118322 118323 118324 118325 118326 118327 118328 118329 | ** range (if any). */ nConstraint = nEq; if( pRangeEnd ){ Expr *pRight = pRangeEnd->pExpr->pRight; sqlite3ExprCacheRemove(pParse, regBase+nEq, 1); sqlite3ExprCode(pParse, pRight, regBase+nEq); if( (pRangeEnd->wtFlags & TERM_VNULL)==0 && sqlite3ExprCanBeNull(pRight) ){ sqlite3VdbeAddOp2(v, OP_IsNull, regBase+nEq, addrNxt); VdbeCoverage(v); } if( sqlite3CompareAffinity(pRight, cEndAff)!=SQLITE_AFF_NONE | > | 119367 119368 119369 119370 119371 119372 119373 119374 119375 119376 119377 119378 119379 119380 119381 | ** range (if any). */ nConstraint = nEq; if( pRangeEnd ){ Expr *pRight = pRangeEnd->pExpr->pRight; sqlite3ExprCacheRemove(pParse, regBase+nEq, 1); sqlite3ExprCode(pParse, pRight, regBase+nEq); whereLikeOptimizationStringFixup(v, pLevel, pRangeEnd); if( (pRangeEnd->wtFlags & TERM_VNULL)==0 && sqlite3ExprCanBeNull(pRight) ){ sqlite3VdbeAddOp2(v, OP_IsNull, regBase+nEq, addrNxt); VdbeCoverage(v); } if( sqlite3CompareAffinity(pRight, cEndAff)!=SQLITE_AFF_NONE |
︙ | ︙ | |||
118543 118544 118545 118546 118547 118548 118549 | /* Run a separate WHERE clause for each term of the OR clause. After ** eliminating duplicates from other WHERE clauses, the action for each ** sub-WHERE clause is to to invoke the main loop body as a subroutine. */ wctrlFlags = WHERE_OMIT_OPEN_CLOSE | WHERE_FORCE_TABLE | | > | 119595 119596 119597 119598 119599 119600 119601 119602 119603 119604 119605 119606 119607 119608 119609 119610 | /* Run a separate WHERE clause for each term of the OR clause. After ** eliminating duplicates from other WHERE clauses, the action for each ** sub-WHERE clause is to to invoke the main loop body as a subroutine. */ wctrlFlags = WHERE_OMIT_OPEN_CLOSE | WHERE_FORCE_TABLE | WHERE_ONETABLE_ONLY | WHERE_NO_AUTOINDEX; for(ii=0; ii<pOrWc->nTerm; ii++){ WhereTerm *pOrTerm = &pOrWc->a[ii]; if( pOrTerm->leftCursor==iCur || (pOrTerm->eOperator & WO_AND)!=0 ){ WhereInfo *pSubWInfo; /* Info for single OR-term scan */ Expr *pOrExpr = pOrTerm->pExpr; /* Current OR clause term */ int j1 = 0; /* Address of jump operation */ if( pAndExpr && !ExprHasProperty(pOrExpr, EP_FromJoin) ){ |
︙ | ︙ | |||
118705 118706 118707 118708 118709 118710 118711 118712 118713 118714 118715 118716 118717 118718 118719 118720 118721 118722 118723 118724 118725 118726 118727 118728 118729 118730 118731 118732 118733 | #endif /* Insert code to test every subexpression that can be completely ** computed using the current set of tables. */ for(pTerm=pWC->a, j=pWC->nTerm; j>0; j--, pTerm++){ Expr *pE; testcase( pTerm->wtFlags & TERM_VIRTUAL ); testcase( pTerm->wtFlags & TERM_CODED ); if( pTerm->wtFlags & (TERM_VIRTUAL|TERM_CODED) ) continue; if( (pTerm->prereqAll & pLevel->notReady)!=0 ){ testcase( pWInfo->untestedTerms==0 && (pWInfo->wctrlFlags & WHERE_ONETABLE_ONLY)!=0 ); pWInfo->untestedTerms = 1; continue; } pE = pTerm->pExpr; assert( pE!=0 ); if( pLevel->iLeftJoin && !ExprHasProperty(pE, EP_FromJoin) ){ continue; } sqlite3ExprIfFalse(pParse, pE, addrCont, SQLITE_JUMPIFNULL); pTerm->wtFlags |= TERM_CODED; } /* Insert code to test for implied constraints based on transitivity ** of the "==" operator. ** ** Example: If the WHERE clause contains "t1.a=t2.b" and "t2.b=123" | > > > > > > > | 119758 119759 119760 119761 119762 119763 119764 119765 119766 119767 119768 119769 119770 119771 119772 119773 119774 119775 119776 119777 119778 119779 119780 119781 119782 119783 119784 119785 119786 119787 119788 119789 119790 119791 119792 119793 | #endif /* Insert code to test every subexpression that can be completely ** computed using the current set of tables. */ for(pTerm=pWC->a, j=pWC->nTerm; j>0; j--, pTerm++){ Expr *pE; int skipLikeAddr = 0; testcase( pTerm->wtFlags & TERM_VIRTUAL ); testcase( pTerm->wtFlags & TERM_CODED ); if( pTerm->wtFlags & (TERM_VIRTUAL|TERM_CODED) ) continue; if( (pTerm->prereqAll & pLevel->notReady)!=0 ){ testcase( pWInfo->untestedTerms==0 && (pWInfo->wctrlFlags & WHERE_ONETABLE_ONLY)!=0 ); pWInfo->untestedTerms = 1; continue; } pE = pTerm->pExpr; assert( pE!=0 ); if( pLevel->iLeftJoin && !ExprHasProperty(pE, EP_FromJoin) ){ continue; } if( pTerm->wtFlags & TERM_LIKECOND ){ assert( pLevel->iLikeRepCntr>0 ); skipLikeAddr = sqlite3VdbeAddOp1(v, OP_IfNot, pLevel->iLikeRepCntr); VdbeCoverage(v); } sqlite3ExprIfFalse(pParse, pE, addrCont, SQLITE_JUMPIFNULL); if( skipLikeAddr ) sqlite3VdbeJumpHere(v, skipLikeAddr); pTerm->wtFlags |= TERM_CODED; } /* Insert code to test for implied constraints based on transitivity ** of the "==" operator. ** ** Example: If the WHERE clause contains "t1.a=t2.b" and "t2.b=123" |
︙ | ︙ | |||
119384 119385 119386 119387 119388 119389 119390 119391 119392 119393 119394 119395 119396 119397 | if( (eOp==WO_ISNULL || (pTerm->wtFlags&TERM_VNULL)!=0) && (iCol<0 || pSrc->pTab->aCol[iCol].notNull) ){ continue; /* ignore IS [NOT] NULL constraints on NOT NULL columns */ } if( pTerm->prereqRight & pNew->maskSelf ) continue; pNew->wsFlags = saved_wsFlags; pNew->u.btree.nEq = saved_nEq; pNew->nLTerm = saved_nLTerm; if( whereLoopResize(db, pNew, pNew->nLTerm+1) ) break; /* OOM */ pNew->aLTerm[pNew->nLTerm++] = pTerm; pNew->prereq = (saved_prereq | pTerm->prereqRight) & ~pNew->maskSelf; | > > > > | 120444 120445 120446 120447 120448 120449 120450 120451 120452 120453 120454 120455 120456 120457 120458 120459 120460 120461 | if( (eOp==WO_ISNULL || (pTerm->wtFlags&TERM_VNULL)!=0) && (iCol<0 || pSrc->pTab->aCol[iCol].notNull) ){ continue; /* ignore IS [NOT] NULL constraints on NOT NULL columns */ } if( pTerm->prereqRight & pNew->maskSelf ) continue; /* Do not allow the upper bound of a LIKE optimization range constraint ** to mix with a lower range bound from some other source */ if( pTerm->wtFlags & TERM_LIKEOPT && pTerm->eOperator==WO_LT ) continue; pNew->wsFlags = saved_wsFlags; pNew->u.btree.nEq = saved_nEq; pNew->nLTerm = saved_nLTerm; if( whereLoopResize(db, pNew, pNew->nLTerm+1) ) break; /* OOM */ pNew->aLTerm[pNew->nLTerm++] = pTerm; pNew->prereq = (saved_prereq | pTerm->prereqRight) & ~pNew->maskSelf; |
︙ | ︙ | |||
119427 119428 119429 119430 119431 119432 119433 119434 119435 119436 119437 119438 119439 119440 | pNew->wsFlags |= WHERE_COLUMN_NULL; }else if( eOp & (WO_GT|WO_GE) ){ testcase( eOp & WO_GT ); testcase( eOp & WO_GE ); pNew->wsFlags |= WHERE_COLUMN_RANGE|WHERE_BTM_LIMIT; pBtm = pTerm; pTop = 0; }else{ assert( eOp & (WO_LT|WO_LE) ); testcase( eOp & WO_LT ); testcase( eOp & WO_LE ); pNew->wsFlags |= WHERE_COLUMN_RANGE|WHERE_TOP_LIMIT; pTop = pTerm; pBtm = (pNew->wsFlags & WHERE_BTM_LIMIT)!=0 ? | > > > > > > > > > > > | 120491 120492 120493 120494 120495 120496 120497 120498 120499 120500 120501 120502 120503 120504 120505 120506 120507 120508 120509 120510 120511 120512 120513 120514 120515 | pNew->wsFlags |= WHERE_COLUMN_NULL; }else if( eOp & (WO_GT|WO_GE) ){ testcase( eOp & WO_GT ); testcase( eOp & WO_GE ); pNew->wsFlags |= WHERE_COLUMN_RANGE|WHERE_BTM_LIMIT; pBtm = pTerm; pTop = 0; if( pTerm->wtFlags & TERM_LIKEOPT ){ /* Range contraints that come from the LIKE optimization are ** always used in pairs. */ pTop = &pTerm[1]; assert( (pTop-(pTerm->pWC->a))<pTerm->pWC->nTerm ); assert( pTop->wtFlags & TERM_LIKEOPT ); assert( pTop->eOperator==WO_LT ); if( whereLoopResize(db, pNew, pNew->nLTerm+1) ) break; /* OOM */ pNew->aLTerm[pNew->nLTerm++] = pTop; pNew->wsFlags |= WHERE_TOP_LIMIT; } }else{ assert( eOp & (WO_LT|WO_LE) ); testcase( eOp & WO_LT ); testcase( eOp & WO_LE ); pNew->wsFlags |= WHERE_COLUMN_RANGE|WHERE_TOP_LIMIT; pTop = pTerm; pBtm = (pNew->wsFlags & WHERE_BTM_LIMIT)!=0 ? |
︙ | ︙ | |||
119628 119629 119630 119631 119632 119633 119634 | /* Check to see if a partial index with pPartIndexWhere can be used ** in the current query. Return true if it can be and false if not. */ static int whereUsablePartialIndex(int iTab, WhereClause *pWC, Expr *pWhere){ int i; WhereTerm *pTerm; for(i=0, pTerm=pWC->a; i<pWC->nTerm; i++, pTerm++){ | > | | | 120703 120704 120705 120706 120707 120708 120709 120710 120711 120712 120713 120714 120715 120716 120717 120718 120719 | /* Check to see if a partial index with pPartIndexWhere can be used ** in the current query. Return true if it can be and false if not. */ static int whereUsablePartialIndex(int iTab, WhereClause *pWC, Expr *pWhere){ int i; WhereTerm *pTerm; for(i=0, pTerm=pWC->a; i<pWC->nTerm; i++, pTerm++){ Expr *pExpr = pTerm->pExpr; if( sqlite3ExprImpliesExpr(pExpr, pWhere, iTab) && (!ExprHasProperty(pExpr, EP_FromJoin) || pExpr->iRightJoinTable==iTab) ){ return 1; } } return 0; } |
︙ | ︙ | |||
119736 119737 119738 119739 119740 119741 119742 119743 119744 119745 119746 119747 119748 119749 | } rSize = pTab->nRowLogEst; rLogSize = estLog(rSize); #ifndef SQLITE_OMIT_AUTOMATIC_INDEX /* Automatic indexes */ if( !pBuilder->pOrSet && (pWInfo->pParse->db->flags & SQLITE_AutoIndex)!=0 && pSrc->pIndex==0 && !pSrc->viaCoroutine && !pSrc->notIndexed && HasRowid(pTab) && !pSrc->isCorrelated && !pSrc->isRecursive | > | 120812 120813 120814 120815 120816 120817 120818 120819 120820 120821 120822 120823 120824 120825 120826 | } rSize = pTab->nRowLogEst; rLogSize = estLog(rSize); #ifndef SQLITE_OMIT_AUTOMATIC_INDEX /* Automatic indexes */ if( !pBuilder->pOrSet && (pWInfo->wctrlFlags & WHERE_NO_AUTOINDEX)==0 && (pWInfo->pParse->db->flags & SQLITE_AutoIndex)!=0 && pSrc->pIndex==0 && !pSrc->viaCoroutine && !pSrc->notIndexed && HasRowid(pTab) && !pSrc->isCorrelated && !pSrc->isRecursive |
︙ | ︙ | |||
120619 120620 120621 120622 120623 120624 120625 | memset(aSortCost, 0, sizeof(LogEst) * nOrderBy); } assert( aSortCost==0 || &pSpace[nSpace]==(char*)&aSortCost[nOrderBy] ); assert( aSortCost!=0 || &pSpace[nSpace]==(char*)pX ); /* Seed the search with a single WherePath containing zero WhereLoops. ** | | | | | 121696 121697 121698 121699 121700 121701 121702 121703 121704 121705 121706 121707 121708 121709 121710 121711 121712 121713 | memset(aSortCost, 0, sizeof(LogEst) * nOrderBy); } assert( aSortCost==0 || &pSpace[nSpace]==(char*)&aSortCost[nOrderBy] ); assert( aSortCost!=0 || &pSpace[nSpace]==(char*)pX ); /* Seed the search with a single WherePath containing zero WhereLoops. ** ** TUNING: Do not let the number of iterations go above 28. If the cost ** of computing an automatic index is not paid back within the first 28 ** rows, then do not use the automatic index. */ aFrom[0].nRow = MIN(pParse->nQueryLoop, 48); assert( 48==sqlite3LogEst(28) ); nFrom = 1; assert( aFrom[0].isOrdered==0 ); if( nOrderBy ){ /* If nLoop is zero, then there are no FROM terms in the query. Since ** in this case the query may return a maximum of one row, the results ** are already in the requested order. Set isOrdered to nOrderBy to ** indicate this. Or, if nLoop is greater than zero, set isOrdered to |
︙ | ︙ | |||
121420 121421 121422 121423 121424 121425 121426 121427 121428 121429 121430 121431 121432 121433 | } pLevel->iIdxCur = iIndexCur; assert( pIx->pSchema==pTab->pSchema ); assert( iIndexCur>=0 ); if( op ){ sqlite3VdbeAddOp3(v, op, iIndexCur, pIx->tnum, iDb); sqlite3VdbeSetP4KeyInfo(pParse, pIx); VdbeComment((v, "%s", pIx->zName)); } } if( iDb>=0 ) sqlite3CodeVerifySchema(pParse, iDb); notReady &= ~getMask(&pWInfo->sMaskSet, pTabItem->iCursor); } pWInfo->iTop = sqlite3VdbeCurrentAddr(v); | > > > > > > | 122497 122498 122499 122500 122501 122502 122503 122504 122505 122506 122507 122508 122509 122510 122511 122512 122513 122514 122515 122516 | } pLevel->iIdxCur = iIndexCur; assert( pIx->pSchema==pTab->pSchema ); assert( iIndexCur>=0 ); if( op ){ sqlite3VdbeAddOp3(v, op, iIndexCur, pIx->tnum, iDb); sqlite3VdbeSetP4KeyInfo(pParse, pIx); if( (pLoop->wsFlags & WHERE_CONSTRAINT)!=0 && (pLoop->wsFlags & (WHERE_COLUMN_RANGE|WHERE_SKIPSCAN))==0 && (pWInfo->wctrlFlags&WHERE_ORDERBY_MIN)==0 ){ sqlite3VdbeChangeP5(v, OPFLAG_SEEKEQ); /* Hint to COMDB2 */ } VdbeComment((v, "%s", pIx->zName)); } } if( iDb>=0 ) sqlite3CodeVerifySchema(pParse, iDb); notReady &= ~getMask(&pWInfo->sMaskSet, pTabItem->iCursor); } pWInfo->iTop = sqlite3VdbeCurrentAddr(v); |
︙ | ︙ | |||
121520 121521 121522 121523 121524 121525 121526 121527 121528 121529 121530 121531 121532 121533 | } sqlite3VdbeResolveLabel(v, pLevel->addrBrk); if( pLevel->addrSkip ){ sqlite3VdbeAddOp2(v, OP_Goto, 0, pLevel->addrSkip); VdbeComment((v, "next skip-scan on %s", pLoop->u.btree.pIndex->zName)); sqlite3VdbeJumpHere(v, pLevel->addrSkip); sqlite3VdbeJumpHere(v, pLevel->addrSkip-2); } if( pLevel->iLeftJoin ){ addr = sqlite3VdbeAddOp1(v, OP_IfPos, pLevel->iLeftJoin); VdbeCoverage(v); assert( (pLoop->wsFlags & WHERE_IDX_ONLY)==0 || (pLoop->wsFlags & WHERE_INDEXED)!=0 ); if( (pLoop->wsFlags & WHERE_IDX_ONLY)==0 ){ sqlite3VdbeAddOp1(v, OP_NullRow, pTabList->a[i].iCursor); | > > > > > > > > > > | 122603 122604 122605 122606 122607 122608 122609 122610 122611 122612 122613 122614 122615 122616 122617 122618 122619 122620 122621 122622 122623 122624 122625 122626 | } sqlite3VdbeResolveLabel(v, pLevel->addrBrk); if( pLevel->addrSkip ){ sqlite3VdbeAddOp2(v, OP_Goto, 0, pLevel->addrSkip); VdbeComment((v, "next skip-scan on %s", pLoop->u.btree.pIndex->zName)); sqlite3VdbeJumpHere(v, pLevel->addrSkip); sqlite3VdbeJumpHere(v, pLevel->addrSkip-2); } if( pLevel->addrLikeRep ){ int op; if( sqlite3VdbeGetOp(v, pLevel->addrLikeRep-1)->p1 ){ op = OP_DecrJumpZero; }else{ op = OP_JumpZeroIncr; } sqlite3VdbeAddOp2(v, op, pLevel->iLikeRepCntr, pLevel->addrLikeRep); VdbeCoverage(v); } if( pLevel->iLeftJoin ){ addr = sqlite3VdbeAddOp1(v, OP_IfPos, pLevel->iLeftJoin); VdbeCoverage(v); assert( (pLoop->wsFlags & WHERE_IDX_ONLY)==0 || (pLoop->wsFlags & WHERE_INDEXED)!=0 ); if( (pLoop->wsFlags & WHERE_IDX_ONLY)==0 ){ sqlite3VdbeAddOp1(v, OP_NullRow, pTabList->a[i].iCursor); |
︙ | ︙ | |||
124411 124412 124413 124414 124415 124416 124417 | sqlite3ExprAssignVarNumber(pParse, yygotominor.yy346.pExpr); } spanSet(&yygotominor.yy346, &yymsp[0].minor.yy0, &yymsp[0].minor.yy0); } break; case 193: /* expr ::= expr COLLATE ID|STRING */ { | | | 125504 125505 125506 125507 125508 125509 125510 125511 125512 125513 125514 125515 125516 125517 125518 | sqlite3ExprAssignVarNumber(pParse, yygotominor.yy346.pExpr); } spanSet(&yygotominor.yy346, &yymsp[0].minor.yy0, &yymsp[0].minor.yy0); } break; case 193: /* expr ::= expr COLLATE ID|STRING */ { yygotominor.yy346.pExpr = sqlite3ExprAddCollateToken(pParse, yymsp[-2].minor.yy346.pExpr, &yymsp[0].minor.yy0, 1); yygotominor.yy346.zStart = yymsp[-2].minor.yy346.zStart; yygotominor.yy346.zEnd = &yymsp[0].minor.yy0.z[yymsp[0].minor.yy0.n]; } break; case 194: /* expr ::= CAST LP expr AS typetoken RP */ { yygotominor.yy346.pExpr = sqlite3PExpr(pParse, TK_CAST, yymsp[-3].minor.yy346.pExpr, 0, &yymsp[-1].minor.yy0); |
︙ | ︙ | |||
124574 124575 124576 124577 124578 124579 124580 | pRHS->flags |= EP_Generic; } yygotominor.yy346.pExpr = sqlite3PExpr(pParse, yymsp[-3].minor.yy328 ? TK_NE : TK_EQ, yymsp[-4].minor.yy346.pExpr, pRHS, 0); }else{ yygotominor.yy346.pExpr = sqlite3PExpr(pParse, TK_IN, yymsp[-4].minor.yy346.pExpr, 0, 0); if( yygotominor.yy346.pExpr ){ yygotominor.yy346.pExpr->x.pList = yymsp[-1].minor.yy14; | | | | | | | | | | | | 125667 125668 125669 125670 125671 125672 125673 125674 125675 125676 125677 125678 125679 125680 125681 125682 125683 125684 125685 125686 125687 125688 125689 125690 125691 125692 125693 125694 125695 125696 125697 125698 125699 125700 125701 125702 125703 125704 125705 125706 125707 125708 125709 125710 125711 125712 125713 125714 125715 125716 125717 125718 125719 125720 125721 125722 125723 125724 125725 125726 125727 125728 125729 125730 125731 125732 125733 125734 125735 125736 125737 125738 125739 125740 125741 125742 125743 125744 125745 125746 125747 125748 125749 125750 125751 125752 125753 125754 125755 | pRHS->flags |= EP_Generic; } yygotominor.yy346.pExpr = sqlite3PExpr(pParse, yymsp[-3].minor.yy328 ? TK_NE : TK_EQ, yymsp[-4].minor.yy346.pExpr, pRHS, 0); }else{ yygotominor.yy346.pExpr = sqlite3PExpr(pParse, TK_IN, yymsp[-4].minor.yy346.pExpr, 0, 0); if( yygotominor.yy346.pExpr ){ yygotominor.yy346.pExpr->x.pList = yymsp[-1].minor.yy14; sqlite3ExprSetHeightAndFlags(pParse, yygotominor.yy346.pExpr); }else{ sqlite3ExprListDelete(pParse->db, yymsp[-1].minor.yy14); } if( yymsp[-3].minor.yy328 ) yygotominor.yy346.pExpr = sqlite3PExpr(pParse, TK_NOT, yygotominor.yy346.pExpr, 0, 0); } yygotominor.yy346.zStart = yymsp[-4].minor.yy346.zStart; yygotominor.yy346.zEnd = &yymsp[0].minor.yy0.z[yymsp[0].minor.yy0.n]; } break; case 224: /* expr ::= LP select RP */ { yygotominor.yy346.pExpr = sqlite3PExpr(pParse, TK_SELECT, 0, 0, 0); if( yygotominor.yy346.pExpr ){ yygotominor.yy346.pExpr->x.pSelect = yymsp[-1].minor.yy3; ExprSetProperty(yygotominor.yy346.pExpr, EP_xIsSelect|EP_Subquery); sqlite3ExprSetHeightAndFlags(pParse, yygotominor.yy346.pExpr); }else{ sqlite3SelectDelete(pParse->db, yymsp[-1].minor.yy3); } yygotominor.yy346.zStart = yymsp[-2].minor.yy0.z; yygotominor.yy346.zEnd = &yymsp[0].minor.yy0.z[yymsp[0].minor.yy0.n]; } break; case 225: /* expr ::= expr in_op LP select RP */ { yygotominor.yy346.pExpr = sqlite3PExpr(pParse, TK_IN, yymsp[-4].minor.yy346.pExpr, 0, 0); if( yygotominor.yy346.pExpr ){ yygotominor.yy346.pExpr->x.pSelect = yymsp[-1].minor.yy3; ExprSetProperty(yygotominor.yy346.pExpr, EP_xIsSelect|EP_Subquery); sqlite3ExprSetHeightAndFlags(pParse, yygotominor.yy346.pExpr); }else{ sqlite3SelectDelete(pParse->db, yymsp[-1].minor.yy3); } if( yymsp[-3].minor.yy328 ) yygotominor.yy346.pExpr = sqlite3PExpr(pParse, TK_NOT, yygotominor.yy346.pExpr, 0, 0); yygotominor.yy346.zStart = yymsp[-4].minor.yy346.zStart; yygotominor.yy346.zEnd = &yymsp[0].minor.yy0.z[yymsp[0].minor.yy0.n]; } break; case 226: /* expr ::= expr in_op nm dbnm */ { SrcList *pSrc = sqlite3SrcListAppend(pParse->db, 0,&yymsp[-1].minor.yy0,&yymsp[0].minor.yy0); yygotominor.yy346.pExpr = sqlite3PExpr(pParse, TK_IN, yymsp[-3].minor.yy346.pExpr, 0, 0); if( yygotominor.yy346.pExpr ){ yygotominor.yy346.pExpr->x.pSelect = sqlite3SelectNew(pParse, 0,pSrc,0,0,0,0,0,0,0); ExprSetProperty(yygotominor.yy346.pExpr, EP_xIsSelect|EP_Subquery); sqlite3ExprSetHeightAndFlags(pParse, yygotominor.yy346.pExpr); }else{ sqlite3SrcListDelete(pParse->db, pSrc); } if( yymsp[-2].minor.yy328 ) yygotominor.yy346.pExpr = sqlite3PExpr(pParse, TK_NOT, yygotominor.yy346.pExpr, 0, 0); yygotominor.yy346.zStart = yymsp[-3].minor.yy346.zStart; yygotominor.yy346.zEnd = yymsp[0].minor.yy0.z ? &yymsp[0].minor.yy0.z[yymsp[0].minor.yy0.n] : &yymsp[-1].minor.yy0.z[yymsp[-1].minor.yy0.n]; } break; case 227: /* expr ::= EXISTS LP select RP */ { Expr *p = yygotominor.yy346.pExpr = sqlite3PExpr(pParse, TK_EXISTS, 0, 0, 0); if( p ){ p->x.pSelect = yymsp[-1].minor.yy3; ExprSetProperty(p, EP_xIsSelect|EP_Subquery); sqlite3ExprSetHeightAndFlags(pParse, p); }else{ sqlite3SelectDelete(pParse->db, yymsp[-1].minor.yy3); } yygotominor.yy346.zStart = yymsp[-3].minor.yy0.z; yygotominor.yy346.zEnd = &yymsp[0].minor.yy0.z[yymsp[0].minor.yy0.n]; } break; case 228: /* expr ::= CASE case_operand case_exprlist case_else END */ { yygotominor.yy346.pExpr = sqlite3PExpr(pParse, TK_CASE, yymsp[-3].minor.yy132, 0, 0); if( yygotominor.yy346.pExpr ){ yygotominor.yy346.pExpr->x.pList = yymsp[-1].minor.yy132 ? sqlite3ExprListAppend(pParse,yymsp[-2].minor.yy14,yymsp[-1].minor.yy132) : yymsp[-2].minor.yy14; sqlite3ExprSetHeightAndFlags(pParse, yygotominor.yy346.pExpr); }else{ sqlite3ExprListDelete(pParse->db, yymsp[-2].minor.yy14); sqlite3ExprDelete(pParse->db, yymsp[-1].minor.yy132); } yygotominor.yy346.zStart = yymsp[-4].minor.yy0.z; yygotominor.yy346.zEnd = &yymsp[0].minor.yy0.z[yymsp[0].minor.yy0.n]; } |
︙ | ︙ | |||
124691 124692 124693 124694 124695 124696 124697 | {yygotominor.yy328 = OE_Abort;} break; case 241: /* uniqueflag ::= */ {yygotominor.yy328 = OE_None;} break; case 244: /* idxlist ::= idxlist COMMA nm collate sortorder */ { | | | | 125784 125785 125786 125787 125788 125789 125790 125791 125792 125793 125794 125795 125796 125797 125798 125799 125800 125801 125802 125803 125804 125805 125806 125807 | {yygotominor.yy328 = OE_Abort;} break; case 241: /* uniqueflag ::= */ {yygotominor.yy328 = OE_None;} break; case 244: /* idxlist ::= idxlist COMMA nm collate sortorder */ { Expr *p = sqlite3ExprAddCollateToken(pParse, 0, &yymsp[-1].minor.yy0, 1); yygotominor.yy14 = sqlite3ExprListAppend(pParse,yymsp[-4].minor.yy14, p); sqlite3ExprListSetName(pParse,yygotominor.yy14,&yymsp[-2].minor.yy0,1); sqlite3ExprListCheckLength(pParse, yygotominor.yy14, "index"); if( yygotominor.yy14 ) yygotominor.yy14->a[yygotominor.yy14->nExpr-1].sortOrder = (u8)yymsp[0].minor.yy328; } break; case 245: /* idxlist ::= nm collate sortorder */ { Expr *p = sqlite3ExprAddCollateToken(pParse, 0, &yymsp[-1].minor.yy0, 1); yygotominor.yy14 = sqlite3ExprListAppend(pParse,0, p); sqlite3ExprListSetName(pParse, yygotominor.yy14, &yymsp[-2].minor.yy0, 1); sqlite3ExprListCheckLength(pParse, yygotominor.yy14, "index"); if( yygotominor.yy14 ) yygotominor.yy14->a[yygotominor.yy14->nExpr-1].sortOrder = (u8)yymsp[0].minor.yy328; } break; case 246: /* collate ::= */ |
︙ | ︙ | |||
125890 125891 125892 125893 125894 125895 125896 | void *pEngine; /* The LEMON-generated LALR(1) parser */ int tokenType; /* type of the next token */ int lastTokenParsed = -1; /* type of the previous token */ u8 enableLookaside; /* Saved value of db->lookaside.bEnabled */ sqlite3 *db = pParse->db; /* The database connection */ int mxSqlLen; /* Max length of an SQL string */ | | < < < | 126983 126984 126985 126986 126987 126988 126989 126990 126991 126992 126993 126994 126995 126996 126997 | void *pEngine; /* The LEMON-generated LALR(1) parser */ int tokenType; /* type of the next token */ int lastTokenParsed = -1; /* type of the previous token */ u8 enableLookaside; /* Saved value of db->lookaside.bEnabled */ sqlite3 *db = pParse->db; /* The database connection */ int mxSqlLen; /* Max length of an SQL string */ assert( zSql!=0 ); mxSqlLen = db->aLimit[SQLITE_LIMIT_SQL_LENGTH]; if( db->nVdbeActive==0 ){ db->u1.isInterrupted = 0; } pParse->rc = SQLITE_OK; pParse->zTail = zSql; i = 0; |
︙ | ︙ | |||
125962 125963 125964 125965 125966 125967 125968 125969 125970 125971 125972 125973 125974 125975 125976 125977 125978 | if( lastTokenParsed!=TK_SEMI ){ sqlite3Parser(pEngine, TK_SEMI, pParse->sLastToken, pParse); pParse->zTail = &zSql[i]; } sqlite3Parser(pEngine, 0, pParse->sLastToken, pParse); } #ifdef YYTRACKMAXSTACKDEPTH sqlite3StatusSet(SQLITE_STATUS_PARSER_STACK, sqlite3ParserStackPeak(pEngine) ); #endif /* YYDEBUG */ sqlite3ParserFree(pEngine, sqlite3_free); db->lookaside.bEnabled = enableLookaside; if( db->mallocFailed ){ pParse->rc = SQLITE_NOMEM; } if( pParse->rc!=SQLITE_OK && pParse->rc!=SQLITE_DONE && pParse->zErrMsg==0 ){ | > > | 127052 127053 127054 127055 127056 127057 127058 127059 127060 127061 127062 127063 127064 127065 127066 127067 127068 127069 127070 | if( lastTokenParsed!=TK_SEMI ){ sqlite3Parser(pEngine, TK_SEMI, pParse->sLastToken, pParse); pParse->zTail = &zSql[i]; } sqlite3Parser(pEngine, 0, pParse->sLastToken, pParse); } #ifdef YYTRACKMAXSTACKDEPTH sqlite3_mutex_enter(sqlite3MallocMutex()); sqlite3StatusSet(SQLITE_STATUS_PARSER_STACK, sqlite3ParserStackPeak(pEngine) ); sqlite3_mutex_leave(sqlite3MallocMutex()); #endif /* YYDEBUG */ sqlite3ParserFree(pEngine, sqlite3_free); db->lookaside.bEnabled = enableLookaside; if( db->mallocFailed ){ pParse->rc = SQLITE_NOMEM; } if( pParse->rc!=SQLITE_OK && pParse->rc!=SQLITE_DONE && pParse->zErrMsg==0 ){ |
︙ | ︙ | |||
126128 126129 126130 126131 126132 126133 126134 | ** Whitespace never causes a state transition and is always ignored. ** This means that a SQL string of all whitespace is invalid. ** ** If we compile with SQLITE_OMIT_TRIGGER, all of the computation needed ** to recognize the end of a trigger can be omitted. All we have to do ** is look for a semicolon that is not part of an string or comment. */ | | | 127220 127221 127222 127223 127224 127225 127226 127227 127228 127229 127230 127231 127232 127233 127234 | ** Whitespace never causes a state transition and is always ignored. ** This means that a SQL string of all whitespace is invalid. ** ** If we compile with SQLITE_OMIT_TRIGGER, all of the computation needed ** to recognize the end of a trigger can be omitted. All we have to do ** is look for a semicolon that is not part of an string or comment. */ SQLITE_API int SQLITE_STDCALL sqlite3_complete(const char *zSql){ u8 state = 0; /* Current state, using numbers defined in header comment */ u8 token; /* Value of the next token */ #ifndef SQLITE_OMIT_TRIGGER /* A complex statement machine used to detect the end of a CREATE TRIGGER ** statement. This is the normal case. */ |
︙ | ︙ | |||
126293 126294 126295 126296 126297 126298 126299 | #ifndef SQLITE_OMIT_UTF16 /* ** This routine is the same as the sqlite3_complete() routine described ** above, except that the parameter is required to be UTF-16 encoded, not ** UTF-8. */ | | | 127385 127386 127387 127388 127389 127390 127391 127392 127393 127394 127395 127396 127397 127398 127399 | #ifndef SQLITE_OMIT_UTF16 /* ** This routine is the same as the sqlite3_complete() routine described ** above, except that the parameter is required to be UTF-16 encoded, not ** UTF-8. */ SQLITE_API int SQLITE_STDCALL sqlite3_complete16(const void *zSql){ sqlite3_value *pVal; char const *zSql8; int rc = SQLITE_NOMEM; #ifndef SQLITE_OMIT_AUTOINIT rc = sqlite3_initialize(); if( rc ) return rc; |
︙ | ︙ | |||
126443 126444 126445 126446 126447 126448 126449 | */ SQLITE_API const char sqlite3_version[] = SQLITE_VERSION; #endif /* IMPLEMENTATION-OF: R-53536-42575 The sqlite3_libversion() function returns ** a pointer to the to the sqlite3_version[] string constant. */ | | | | | | | 127535 127536 127537 127538 127539 127540 127541 127542 127543 127544 127545 127546 127547 127548 127549 127550 127551 127552 127553 127554 127555 127556 127557 127558 127559 127560 127561 127562 127563 127564 127565 127566 127567 127568 127569 127570 127571 127572 127573 127574 127575 | */ SQLITE_API const char sqlite3_version[] = SQLITE_VERSION; #endif /* IMPLEMENTATION-OF: R-53536-42575 The sqlite3_libversion() function returns ** a pointer to the to the sqlite3_version[] string constant. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_libversion(void){ return sqlite3_version; } /* IMPLEMENTATION-OF: R-63124-39300 The sqlite3_sourceid() function returns a ** pointer to a string constant whose value is the same as the ** SQLITE_SOURCE_ID C preprocessor macro. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_sourceid(void){ return SQLITE_SOURCE_ID; } /* IMPLEMENTATION-OF: R-35210-63508 The sqlite3_libversion_number() function ** returns an integer equal to SQLITE_VERSION_NUMBER. */ SQLITE_API int SQLITE_STDCALL sqlite3_libversion_number(void){ return SQLITE_VERSION_NUMBER; } /* IMPLEMENTATION-OF: R-20790-14025 The sqlite3_threadsafe() function returns ** zero if and only if SQLite was compiled with mutexing code omitted due to ** the SQLITE_THREADSAFE compile-time option being set to 0. */ SQLITE_API int SQLITE_STDCALL sqlite3_threadsafe(void){ return SQLITE_THREADSAFE; } #if !defined(SQLITE_OMIT_TRACE) && defined(SQLITE_ENABLE_IOTRACE) /* ** If the following function pointer is not NULL and if ** SQLITE_ENABLE_IOTRACE is enabled, then messages describing ** I/O active are written using this function. These messages ** are intended for debugging activity only. */ SQLITE_API void (SQLITE_CDECL *sqlite3IoTrace)(const char*, ...) = 0; #endif /* ** If the following global variable points to a string which is the ** name of a directory, then that directory will be used to store ** temporary files. ** |
︙ | ︙ | |||
126521 126522 126523 126524 126525 126526 126527 | ** ** * Calls to this routine from Y must block until the outer-most ** call by X completes. ** ** * Recursive calls to this routine from thread X return immediately ** without blocking. */ | | > > > > > | 127613 127614 127615 127616 127617 127618 127619 127620 127621 127622 127623 127624 127625 127626 127627 127628 127629 127630 127631 127632 127633 127634 127635 127636 127637 127638 127639 127640 127641 127642 127643 127644 | ** ** * Calls to this routine from Y must block until the outer-most ** call by X completes. ** ** * Recursive calls to this routine from thread X return immediately ** without blocking. */ SQLITE_API int SQLITE_STDCALL sqlite3_initialize(void){ MUTEX_LOGIC( sqlite3_mutex *pMaster; ) /* The main static mutex */ int rc; /* Result code */ #ifdef SQLITE_EXTRA_INIT int bRunExtraInit = 0; /* Extra initialization needed */ #endif #ifdef SQLITE_OMIT_WSD rc = sqlite3_wsd_init(4096, 24); if( rc!=SQLITE_OK ){ return rc; } #endif /* If the following assert() fails on some obscure processor/compiler ** combination, the work-around is to set the correct pointer ** size at compile-time using -DSQLITE_PTRSIZE=n compile-time option */ assert( SQLITE_PTRSIZE==sizeof(char*) ); /* If SQLite is already completely initialized, then this call ** to sqlite3_initialize() should be a no-op. But the initialization ** must be complete. So isInit must not be set until the very end ** of this routine. */ if( sqlite3GlobalConfig.isInit ) return SQLITE_OK; |
︙ | ︙ | |||
126677 126678 126679 126680 126681 126682 126683 | ** Undo the effects of sqlite3_initialize(). Must not be called while ** there are outstanding database connections or memory allocations or ** while any part of SQLite is otherwise in use in any thread. This ** routine is not threadsafe. But it is safe to invoke this routine ** on when SQLite is already shut down. If SQLite is already shut down ** when this routine is invoked, then this routine is a harmless no-op. */ | | | 127774 127775 127776 127777 127778 127779 127780 127781 127782 127783 127784 127785 127786 127787 127788 | ** Undo the effects of sqlite3_initialize(). Must not be called while ** there are outstanding database connections or memory allocations or ** while any part of SQLite is otherwise in use in any thread. This ** routine is not threadsafe. But it is safe to invoke this routine ** on when SQLite is already shut down. If SQLite is already shut down ** when this routine is invoked, then this routine is a harmless no-op. */ SQLITE_API int SQLITE_STDCALL sqlite3_shutdown(void){ #ifdef SQLITE_OMIT_WSD int rc = sqlite3_wsd_init(4096, 24); if( rc!=SQLITE_OK ){ return rc; } #endif |
︙ | ︙ | |||
126731 126732 126733 126734 126735 126736 126737 | ** the SQLite library at run-time. ** ** This routine should only be called when there are no outstanding ** database connections or memory allocations. This routine is not ** threadsafe. Failure to heed these warnings can lead to unpredictable ** behavior. */ | | > | | | | | | | > | | | | 127828 127829 127830 127831 127832 127833 127834 127835 127836 127837 127838 127839 127840 127841 127842 127843 127844 127845 127846 127847 127848 127849 127850 127851 127852 127853 127854 127855 127856 127857 127858 127859 127860 127861 127862 127863 127864 127865 127866 127867 127868 127869 127870 127871 127872 127873 127874 127875 127876 127877 127878 127879 | ** the SQLite library at run-time. ** ** This routine should only be called when there are no outstanding ** database connections or memory allocations. This routine is not ** threadsafe. Failure to heed these warnings can lead to unpredictable ** behavior. */ SQLITE_API int SQLITE_CDECL sqlite3_config(int op, ...){ va_list ap; int rc = SQLITE_OK; /* sqlite3_config() shall return SQLITE_MISUSE if it is invoked while ** the SQLite library is in use. */ if( sqlite3GlobalConfig.isInit ) return SQLITE_MISUSE_BKPT; va_start(ap, op); switch( op ){ /* Mutex configuration options are only available in a threadsafe ** compile. */ #if defined(SQLITE_THREADSAFE) && SQLITE_THREADSAFE>0 /* IMP: R-54466-46756 */ case SQLITE_CONFIG_SINGLETHREAD: { /* EVIDENCE-OF: R-02748-19096 This option sets the threading mode to ** Single-thread. */ sqlite3GlobalConfig.bCoreMutex = 0; /* Disable mutex on core */ sqlite3GlobalConfig.bFullMutex = 0; /* Disable mutex on connections */ break; } #endif #if defined(SQLITE_THREADSAFE) && SQLITE_THREADSAFE>0 /* IMP: R-20520-54086 */ case SQLITE_CONFIG_MULTITHREAD: { /* EVIDENCE-OF: R-14374-42468 This option sets the threading mode to ** Multi-thread. */ sqlite3GlobalConfig.bCoreMutex = 1; /* Enable mutex on core */ sqlite3GlobalConfig.bFullMutex = 0; /* Disable mutex on connections */ break; } #endif #if defined(SQLITE_THREADSAFE) && SQLITE_THREADSAFE>0 /* IMP: R-59593-21810 */ case SQLITE_CONFIG_SERIALIZED: { /* EVIDENCE-OF: R-41220-51800 This option sets the threading mode to ** Serialized. */ sqlite3GlobalConfig.bCoreMutex = 1; /* Enable mutex on core */ sqlite3GlobalConfig.bFullMutex = 1; /* Enable mutex on connections */ break; } #endif #if defined(SQLITE_THREADSAFE) && SQLITE_THREADSAFE>0 /* IMP: R-63666-48755 */ case SQLITE_CONFIG_MUTEX: { /* Specify an alternative mutex implementation */ sqlite3GlobalConfig.mutex = *va_arg(ap, sqlite3_mutex_methods*); |
︙ | ︙ | |||
126878 126879 126880 126881 126882 126883 126884 | /* EVIDENCE-OF: R-06626-12911 The SQLITE_CONFIG_HEAP option is only ** available if SQLite is compiled with either SQLITE_ENABLE_MEMSYS3 or ** SQLITE_ENABLE_MEMSYS5 and returns SQLITE_ERROR if invoked otherwise. */ #if defined(SQLITE_ENABLE_MEMSYS3) || defined(SQLITE_ENABLE_MEMSYS5) case SQLITE_CONFIG_HEAP: { /* EVIDENCE-OF: R-19854-42126 There are three arguments to ** SQLITE_CONFIG_HEAP: An 8-byte aligned pointer to the memory, the | | > | 127977 127978 127979 127980 127981 127982 127983 127984 127985 127986 127987 127988 127989 127990 127991 127992 | /* EVIDENCE-OF: R-06626-12911 The SQLITE_CONFIG_HEAP option is only ** available if SQLite is compiled with either SQLITE_ENABLE_MEMSYS3 or ** SQLITE_ENABLE_MEMSYS5 and returns SQLITE_ERROR if invoked otherwise. */ #if defined(SQLITE_ENABLE_MEMSYS3) || defined(SQLITE_ENABLE_MEMSYS5) case SQLITE_CONFIG_HEAP: { /* EVIDENCE-OF: R-19854-42126 There are three arguments to ** SQLITE_CONFIG_HEAP: An 8-byte aligned pointer to the memory, the ** number of bytes in the memory buffer, and the minimum allocation size. */ sqlite3GlobalConfig.pHeap = va_arg(ap, void*); sqlite3GlobalConfig.nHeap = va_arg(ap, int); sqlite3GlobalConfig.mnReq = va_arg(ap, int); if( sqlite3GlobalConfig.mnReq<1 ){ sqlite3GlobalConfig.mnReq = 1; }else if( sqlite3GlobalConfig.mnReq>(1<<12) ){ |
︙ | ︙ | |||
126983 126984 126985 126986 126987 126988 126989 | ** negative, then that argument is changed to its compile-time default. ** ** EVIDENCE-OF: R-34993-45031 The maximum allowed mmap size will be ** silently truncated if necessary so that it does not exceed the ** compile-time maximum mmap size set by the SQLITE_MAX_MMAP_SIZE ** compile-time option. */ | | > > | 128083 128084 128085 128086 128087 128088 128089 128090 128091 128092 128093 128094 128095 128096 128097 128098 128099 | ** negative, then that argument is changed to its compile-time default. ** ** EVIDENCE-OF: R-34993-45031 The maximum allowed mmap size will be ** silently truncated if necessary so that it does not exceed the ** compile-time maximum mmap size set by the SQLITE_MAX_MMAP_SIZE ** compile-time option. */ if( mxMmap<0 || mxMmap>SQLITE_MAX_MMAP_SIZE ){ mxMmap = SQLITE_MAX_MMAP_SIZE; } if( szMmap<0 ) szMmap = SQLITE_DEFAULT_MMAP_SIZE; if( szMmap>mxMmap) szMmap = mxMmap; sqlite3GlobalConfig.mxMmap = mxMmap; sqlite3GlobalConfig.szMmap = szMmap; break; } |
︙ | ︙ | |||
127083 127084 127085 127086 127087 127088 127089 | } return SQLITE_OK; } /* ** Return the mutex associated with a database connection. */ | | | | 128185 128186 128187 128188 128189 128190 128191 128192 128193 128194 128195 128196 128197 128198 128199 128200 128201 128202 128203 128204 128205 128206 128207 128208 128209 128210 128211 128212 128213 | } return SQLITE_OK; } /* ** Return the mutex associated with a database connection. */ SQLITE_API sqlite3_mutex *SQLITE_STDCALL sqlite3_db_mutex(sqlite3 *db){ #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) ){ (void)SQLITE_MISUSE_BKPT; return 0; } #endif return db->mutex; } /* ** Free up as much memory as we can from the given database ** connection. */ SQLITE_API int SQLITE_STDCALL sqlite3_db_release_memory(sqlite3 *db){ int i; #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT; #endif sqlite3_mutex_enter(db->mutex); sqlite3BtreeEnterAll(db); |
︙ | ︙ | |||
127120 127121 127122 127123 127124 127125 127126 | sqlite3_mutex_leave(db->mutex); return SQLITE_OK; } /* ** Configuration settings for an individual database connection */ | | | 128222 128223 128224 128225 128226 128227 128228 128229 128230 128231 128232 128233 128234 128235 128236 | sqlite3_mutex_leave(db->mutex); return SQLITE_OK; } /* ** Configuration settings for an individual database connection */ SQLITE_API int SQLITE_CDECL sqlite3_db_config(sqlite3 *db, int op, ...){ va_list ap; int rc; va_start(ap, op); switch( op ){ case SQLITE_DBCONFIG_LOOKASIDE: { void *pBuf = va_arg(ap, void*); /* IMP: R-26835-10964 */ int sz = va_arg(ap, int); /* IMP: R-47871-25994 */ |
︙ | ︙ | |||
127239 127240 127241 127242 127243 127244 127245 | } return r; } /* ** Return the ROWID of the most recent insert */ | | | | | 128341 128342 128343 128344 128345 128346 128347 128348 128349 128350 128351 128352 128353 128354 128355 128356 128357 128358 128359 128360 128361 128362 128363 128364 128365 128366 128367 128368 128369 128370 128371 128372 128373 128374 128375 128376 128377 128378 128379 128380 128381 | } return r; } /* ** Return the ROWID of the most recent insert */ SQLITE_API sqlite_int64 SQLITE_STDCALL sqlite3_last_insert_rowid(sqlite3 *db){ #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) ){ (void)SQLITE_MISUSE_BKPT; return 0; } #endif return db->lastRowid; } /* ** Return the number of changes in the most recent call to sqlite3_exec(). */ SQLITE_API int SQLITE_STDCALL sqlite3_changes(sqlite3 *db){ #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) ){ (void)SQLITE_MISUSE_BKPT; return 0; } #endif return db->nChange; } /* ** Return the number of changes since the database handle was opened. */ SQLITE_API int SQLITE_STDCALL sqlite3_total_changes(sqlite3 *db){ #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) ){ (void)SQLITE_MISUSE_BKPT; return 0; } #endif return db->nTotalChange; |
︙ | ︙ | |||
127407 127408 127409 127410 127411 127412 127413 | ** connection. The sqlite3_close() version returns SQLITE_BUSY and ** leaves the connection option if there are unfinalized prepared ** statements or unfinished sqlite3_backups. The sqlite3_close_v2() ** version forces the connection to become a zombie if there are ** unclosed resources, and arranges for deallocation when the last ** prepare statement or sqlite3_backup closes. */ | | | | 128509 128510 128511 128512 128513 128514 128515 128516 128517 128518 128519 128520 128521 128522 128523 128524 | ** connection. The sqlite3_close() version returns SQLITE_BUSY and ** leaves the connection option if there are unfinalized prepared ** statements or unfinished sqlite3_backups. The sqlite3_close_v2() ** version forces the connection to become a zombie if there are ** unclosed resources, and arranges for deallocation when the last ** prepare statement or sqlite3_backup closes. */ SQLITE_API int SQLITE_STDCALL sqlite3_close(sqlite3 *db){ return sqlite3Close(db,0); } SQLITE_API int SQLITE_STDCALL sqlite3_close_v2(sqlite3 *db){ return sqlite3Close(db,1); } /* ** Close the mutex on database connection db. ** ** Furthermore, if database connection db is a zombie (meaning that there ** has been a prior call to sqlite3_close(db) or sqlite3_close_v2(db)) and |
︙ | ︙ | |||
127815 127816 127817 127818 127819 127820 127821 | return rc; } /* ** This routine sets the busy callback for an Sqlite database to the ** given callback function with the given argument. */ | | | | | 128917 128918 128919 128920 128921 128922 128923 128924 128925 128926 128927 128928 128929 128930 128931 128932 128933 128934 128935 128936 128937 128938 128939 128940 128941 128942 128943 128944 128945 128946 128947 128948 128949 128950 128951 128952 128953 128954 | return rc; } /* ** This routine sets the busy callback for an Sqlite database to the ** given callback function with the given argument. */ SQLITE_API int SQLITE_STDCALL sqlite3_busy_handler( sqlite3 *db, int (*xBusy)(void*,int), void *pArg ){ #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT; #endif sqlite3_mutex_enter(db->mutex); db->busyHandler.xFunc = xBusy; db->busyHandler.pArg = pArg; db->busyHandler.nBusy = 0; db->busyTimeout = 0; sqlite3_mutex_leave(db->mutex); return SQLITE_OK; } #ifndef SQLITE_OMIT_PROGRESS_CALLBACK /* ** This routine sets the progress callback for an Sqlite database to the ** given callback function with the given argument. The progress callback will ** be invoked every nOps opcodes. */ SQLITE_API void SQLITE_STDCALL sqlite3_progress_handler( sqlite3 *db, int nOps, int (*xProgress)(void*), void *pArg ){ #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) ){ |
︙ | ︙ | |||
127869 127870 127871 127872 127873 127874 127875 | #endif /* ** This routine installs a default busy handler that waits for the ** specified number of milliseconds before returning 0. */ | | | | 128971 128972 128973 128974 128975 128976 128977 128978 128979 128980 128981 128982 128983 128984 128985 128986 128987 128988 128989 128990 128991 128992 128993 128994 128995 128996 128997 128998 128999 129000 129001 | #endif /* ** This routine installs a default busy handler that waits for the ** specified number of milliseconds before returning 0. */ SQLITE_API int SQLITE_STDCALL sqlite3_busy_timeout(sqlite3 *db, int ms){ #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT; #endif if( ms>0 ){ sqlite3_busy_handler(db, sqliteDefaultBusyCallback, (void*)db); db->busyTimeout = ms; }else{ sqlite3_busy_handler(db, 0, 0); } return SQLITE_OK; } /* ** Cause any pending operation to stop at its earliest opportunity. */ SQLITE_API void SQLITE_STDCALL sqlite3_interrupt(sqlite3 *db){ #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) ){ (void)SQLITE_MISUSE_BKPT; return; } #endif db->u1.isInterrupted = 1; |
︙ | ︙ | |||
128002 128003 128004 128005 128006 128007 128008 | p->nArg = (u16)nArg; return SQLITE_OK; } /* ** Create new user functions. */ | | | | 129104 129105 129106 129107 129108 129109 129110 129111 129112 129113 129114 129115 129116 129117 129118 129119 129120 129121 129122 129123 129124 129125 129126 129127 129128 129129 129130 129131 129132 | p->nArg = (u16)nArg; return SQLITE_OK; } /* ** Create new user functions. */ SQLITE_API int SQLITE_STDCALL sqlite3_create_function( sqlite3 *db, const char *zFunc, int nArg, int enc, void *p, void (*xFunc)(sqlite3_context*,int,sqlite3_value **), void (*xStep)(sqlite3_context*,int,sqlite3_value **), void (*xFinal)(sqlite3_context*) ){ return sqlite3_create_function_v2(db, zFunc, nArg, enc, p, xFunc, xStep, xFinal, 0); } SQLITE_API int SQLITE_STDCALL sqlite3_create_function_v2( sqlite3 *db, const char *zFunc, int nArg, int enc, void *p, void (*xFunc)(sqlite3_context*,int,sqlite3_value **), void (*xStep)(sqlite3_context*,int,sqlite3_value **), |
︙ | ︙ | |||
128059 128060 128061 128062 128063 128064 128065 | out: rc = sqlite3ApiExit(db, rc); sqlite3_mutex_leave(db->mutex); return rc; } #ifndef SQLITE_OMIT_UTF16 | | | 129161 129162 129163 129164 129165 129166 129167 129168 129169 129170 129171 129172 129173 129174 129175 | out: rc = sqlite3ApiExit(db, rc); sqlite3_mutex_leave(db->mutex); return rc; } #ifndef SQLITE_OMIT_UTF16 SQLITE_API int SQLITE_STDCALL sqlite3_create_function16( sqlite3 *db, const void *zFunctionName, int nArg, int eTextRep, void *p, void (*xFunc)(sqlite3_context*,int,sqlite3_value**), void (*xStep)(sqlite3_context*,int,sqlite3_value**), |
︙ | ︙ | |||
128099 128100 128101 128102 128103 128104 128105 | ** a new one that always throws a run-time error. ** ** When virtual tables intend to provide an overloaded function, they ** should call this routine to make sure the global function exists. ** A global function must exist in order for name resolution to work ** properly. */ | | | 129201 129202 129203 129204 129205 129206 129207 129208 129209 129210 129211 129212 129213 129214 129215 | ** a new one that always throws a run-time error. ** ** When virtual tables intend to provide an overloaded function, they ** should call this routine to make sure the global function exists. ** A global function must exist in order for name resolution to work ** properly. */ SQLITE_API int SQLITE_STDCALL sqlite3_overload_function( sqlite3 *db, const char *zName, int nArg ){ int nName = sqlite3Strlen30(zName); int rc = SQLITE_OK; |
︙ | ︙ | |||
128131 128132 128133 128134 128135 128136 128137 | ** Register a trace function. The pArg from the previously registered trace ** is returned. ** ** A NULL trace function means that no tracing is executes. A non-NULL ** trace is a pointer to a function that is invoked at the start of each ** SQL statement. */ | | | 129233 129234 129235 129236 129237 129238 129239 129240 129241 129242 129243 129244 129245 129246 129247 | ** Register a trace function. The pArg from the previously registered trace ** is returned. ** ** A NULL trace function means that no tracing is executes. A non-NULL ** trace is a pointer to a function that is invoked at the start of each ** SQL statement. */ SQLITE_API void *SQLITE_STDCALL sqlite3_trace(sqlite3 *db, void (*xTrace)(void*,const char*), void *pArg){ void *pOld; #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) ){ (void)SQLITE_MISUSE_BKPT; return 0; } |
︙ | ︙ | |||
128155 128156 128157 128158 128159 128160 128161 | ** Register a profile function. The pArg from the previously registered ** profile function is returned. ** ** A NULL profile function means that no profiling is executes. A non-NULL ** profile is a pointer to a function that is invoked at the conclusion of ** each SQL statement that is run. */ | | | 129257 129258 129259 129260 129261 129262 129263 129264 129265 129266 129267 129268 129269 129270 129271 | ** Register a profile function. The pArg from the previously registered ** profile function is returned. ** ** A NULL profile function means that no profiling is executes. A non-NULL ** profile is a pointer to a function that is invoked at the conclusion of ** each SQL statement that is run. */ SQLITE_API void *SQLITE_STDCALL sqlite3_profile( sqlite3 *db, void (*xProfile)(void*,const char*,sqlite_uint64), void *pArg ){ void *pOld; #ifdef SQLITE_ENABLE_API_ARMOR |
︙ | ︙ | |||
128182 128183 128184 128185 128186 128187 128188 | #endif /* SQLITE_OMIT_TRACE */ /* ** Register a function to be invoked when a transaction commits. ** If the invoked function returns non-zero, then the commit becomes a ** rollback. */ | | | 129284 129285 129286 129287 129288 129289 129290 129291 129292 129293 129294 129295 129296 129297 129298 | #endif /* SQLITE_OMIT_TRACE */ /* ** Register a function to be invoked when a transaction commits. ** If the invoked function returns non-zero, then the commit becomes a ** rollback. */ SQLITE_API void *SQLITE_STDCALL sqlite3_commit_hook( sqlite3 *db, /* Attach the hook to this database */ int (*xCallback)(void*), /* Function to invoke on each commit */ void *pArg /* Argument to the function */ ){ void *pOld; #ifdef SQLITE_ENABLE_API_ARMOR |
︙ | ︙ | |||
128207 128208 128209 128210 128211 128212 128213 | return pOld; } /* ** Register a callback to be invoked each time a row is updated, ** inserted or deleted using this database connection. */ | | | 129309 129310 129311 129312 129313 129314 129315 129316 129317 129318 129319 129320 129321 129322 129323 | return pOld; } /* ** Register a callback to be invoked each time a row is updated, ** inserted or deleted using this database connection. */ SQLITE_API void *SQLITE_STDCALL sqlite3_update_hook( sqlite3 *db, /* Attach the hook to this database */ void (*xCallback)(void*,int,char const *,char const *,sqlite_int64), void *pArg /* Argument to the function */ ){ void *pRet; #ifdef SQLITE_ENABLE_API_ARMOR |
︙ | ︙ | |||
128232 128233 128234 128235 128236 128237 128238 | return pRet; } /* ** Register a callback to be invoked each time a transaction is rolled ** back by this database connection. */ | | | 129334 129335 129336 129337 129338 129339 129340 129341 129342 129343 129344 129345 129346 129347 129348 | return pRet; } /* ** Register a callback to be invoked each time a transaction is rolled ** back by this database connection. */ SQLITE_API void *SQLITE_STDCALL sqlite3_rollback_hook( sqlite3 *db, /* Attach the hook to this database */ void (*xCallback)(void*), /* Callback function */ void *pArg /* Argument to the function */ ){ void *pRet; #ifdef SQLITE_ENABLE_API_ARMOR |
︙ | ︙ | |||
128286 128287 128288 128289 128290 128291 128292 | ** nFrame parameter disables automatic checkpoints entirely. ** ** The callback registered by this function replaces any existing callback ** registered using sqlite3_wal_hook(). Likewise, registering a callback ** using sqlite3_wal_hook() disables the automatic checkpoint mechanism ** configured by this function. */ | | | | 129388 129389 129390 129391 129392 129393 129394 129395 129396 129397 129398 129399 129400 129401 129402 129403 129404 129405 129406 129407 129408 129409 129410 129411 129412 129413 129414 129415 129416 129417 129418 129419 129420 129421 129422 129423 | ** nFrame parameter disables automatic checkpoints entirely. ** ** The callback registered by this function replaces any existing callback ** registered using sqlite3_wal_hook(). Likewise, registering a callback ** using sqlite3_wal_hook() disables the automatic checkpoint mechanism ** configured by this function. */ SQLITE_API int SQLITE_STDCALL sqlite3_wal_autocheckpoint(sqlite3 *db, int nFrame){ #ifdef SQLITE_OMIT_WAL UNUSED_PARAMETER(db); UNUSED_PARAMETER(nFrame); #else #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT; #endif if( nFrame>0 ){ sqlite3_wal_hook(db, sqlite3WalDefaultHook, SQLITE_INT_TO_PTR(nFrame)); }else{ sqlite3_wal_hook(db, 0, 0); } #endif return SQLITE_OK; } /* ** Register a callback to be invoked each time a transaction is written ** into the write-ahead-log by this database connection. */ SQLITE_API void *SQLITE_STDCALL sqlite3_wal_hook( sqlite3 *db, /* Attach the hook to this db handle */ int(*xCallback)(void *, sqlite3*, const char*, int), void *pArg /* First argument passed to xCallback() */ ){ #ifndef SQLITE_OMIT_WAL void *pRet; #ifdef SQLITE_ENABLE_API_ARMOR |
︙ | ︙ | |||
128334 128335 128336 128337 128338 128339 128340 | return 0; #endif } /* ** Checkpoint database zDb. */ | | | 129436 129437 129438 129439 129440 129441 129442 129443 129444 129445 129446 129447 129448 129449 129450 | return 0; #endif } /* ** Checkpoint database zDb. */ SQLITE_API int SQLITE_STDCALL sqlite3_wal_checkpoint_v2( sqlite3 *db, /* Database handle */ const char *zDb, /* Name of attached database (or NULL) */ int eMode, /* SQLITE_CHECKPOINT_* value */ int *pnLog, /* OUT: Size of WAL log in frames */ int *pnCkpt /* OUT: Total number of frames checkpointed */ ){ #ifdef SQLITE_OMIT_WAL |
︙ | ︙ | |||
128389 128390 128391 128392 128393 128394 128395 | /* ** Checkpoint database zDb. If zDb is NULL, or if the buffer zDb points ** to contains a zero-length string, all attached databases are ** checkpointed. */ | | | 129491 129492 129493 129494 129495 129496 129497 129498 129499 129500 129501 129502 129503 129504 129505 | /* ** Checkpoint database zDb. If zDb is NULL, or if the buffer zDb points ** to contains a zero-length string, all attached databases are ** checkpointed. */ SQLITE_API int SQLITE_STDCALL sqlite3_wal_checkpoint(sqlite3 *db, const char *zDb){ /* EVIDENCE-OF: R-41613-20553 The sqlite3_wal_checkpoint(D,X) is equivalent to ** sqlite3_wal_checkpoint_v2(D,X,SQLITE_CHECKPOINT_PASSIVE,0,0). */ return sqlite3_wal_checkpoint_v2(db,zDb,SQLITE_CHECKPOINT_PASSIVE,0,0); } #ifndef SQLITE_OMIT_WAL /* |
︙ | ︙ | |||
128478 128479 128480 128481 128482 128483 128484 | #endif } /* ** Return UTF-8 encoded English language explanation of the most recent ** error. */ | | | 129580 129581 129582 129583 129584 129585 129586 129587 129588 129589 129590 129591 129592 129593 129594 | #endif } /* ** Return UTF-8 encoded English language explanation of the most recent ** error. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_errmsg(sqlite3 *db){ const char *z; if( !db ){ return sqlite3ErrStr(SQLITE_NOMEM); } if( !sqlite3SafetyCheckSickOrOk(db) ){ return sqlite3ErrStr(SQLITE_MISUSE_BKPT); } |
︙ | ︙ | |||
128506 128507 128508 128509 128510 128511 128512 | } #ifndef SQLITE_OMIT_UTF16 /* ** Return UTF-16 encoded English language explanation of the most recent ** error. */ | | | 129608 129609 129610 129611 129612 129613 129614 129615 129616 129617 129618 129619 129620 129621 129622 | } #ifndef SQLITE_OMIT_UTF16 /* ** Return UTF-16 encoded English language explanation of the most recent ** error. */ SQLITE_API const void *SQLITE_STDCALL sqlite3_errmsg16(sqlite3 *db){ static const u16 outOfMem[] = { 'o', 'u', 't', ' ', 'o', 'f', ' ', 'm', 'e', 'm', 'o', 'r', 'y', 0 }; static const u16 misuse[] = { 'l', 'i', 'b', 'r', 'a', 'r', 'y', ' ', 'r', 'o', 'u', 't', 'i', 'n', 'e', ' ', 'c', 'a', 'l', 'l', 'e', 'd', ' ', |
︙ | ︙ | |||
128551 128552 128553 128554 128555 128556 128557 | } #endif /* SQLITE_OMIT_UTF16 */ /* ** Return the most recent error code generated by an SQLite routine. If NULL is ** passed to this function, we assume a malloc() failed during sqlite3_open(). */ | | | | | 129653 129654 129655 129656 129657 129658 129659 129660 129661 129662 129663 129664 129665 129666 129667 129668 129669 129670 129671 129672 129673 129674 129675 129676 129677 129678 129679 129680 129681 129682 129683 129684 129685 129686 129687 129688 129689 129690 129691 | } #endif /* SQLITE_OMIT_UTF16 */ /* ** Return the most recent error code generated by an SQLite routine. If NULL is ** passed to this function, we assume a malloc() failed during sqlite3_open(). */ SQLITE_API int SQLITE_STDCALL sqlite3_errcode(sqlite3 *db){ if( db && !sqlite3SafetyCheckSickOrOk(db) ){ return SQLITE_MISUSE_BKPT; } if( !db || db->mallocFailed ){ return SQLITE_NOMEM; } return db->errCode & db->errMask; } SQLITE_API int SQLITE_STDCALL sqlite3_extended_errcode(sqlite3 *db){ if( db && !sqlite3SafetyCheckSickOrOk(db) ){ return SQLITE_MISUSE_BKPT; } if( !db || db->mallocFailed ){ return SQLITE_NOMEM; } return db->errCode; } /* ** Return a string that describes the kind of error specified in the ** argument. For now, this simply calls the internal sqlite3ErrStr() ** function. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_errstr(int rc){ return sqlite3ErrStr(rc); } /* ** Create a new collating function for database "db". The name is zName ** and the encoding is enc. */ |
︙ | ︙ | |||
128723 128724 128725 128726 128727 128728 128729 | ** Make no changes but still report the old value if the ** new limit is negative. ** ** A new lower limit does not shrink existing constructs. ** It merely prevents new constructs that exceed the limit ** from forming. */ | | | 129825 129826 129827 129828 129829 129830 129831 129832 129833 129834 129835 129836 129837 129838 129839 | ** Make no changes but still report the old value if the ** new limit is negative. ** ** A new lower limit does not shrink existing constructs. ** It merely prevents new constructs that exceed the limit ** from forming. */ SQLITE_API int SQLITE_STDCALL sqlite3_limit(sqlite3 *db, int limitId, int newLimit){ int oldLimit; #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) ){ (void)SQLITE_MISUSE_BKPT; return -1; } |
︙ | ︙ | |||
128827 128828 128829 128830 128831 128832 128833 | flags |= SQLITE_OPEN_URI; for(iIn=0; iIn<nUri; iIn++) nByte += (zUri[iIn]=='&'); zFile = sqlite3_malloc(nByte); if( !zFile ) return SQLITE_NOMEM; iIn = 5; | | > > > > > > > > > > > > | 129929 129930 129931 129932 129933 129934 129935 129936 129937 129938 129939 129940 129941 129942 129943 129944 129945 129946 129947 129948 129949 129950 129951 129952 129953 129954 129955 | flags |= SQLITE_OPEN_URI; for(iIn=0; iIn<nUri; iIn++) nByte += (zUri[iIn]=='&'); zFile = sqlite3_malloc(nByte); if( !zFile ) return SQLITE_NOMEM; iIn = 5; #ifdef SQLITE_ALLOW_URI_AUTHORITY if( strncmp(zUri+5, "///", 3)==0 ){ iIn = 7; /* The following condition causes URIs with five leading / characters ** like file://///host/path to be converted into UNCs like //host/path. ** The correct URI for that UNC has only two or four leading / characters ** file://host/path or file:////host/path. But 5 leading slashes is a ** common error, we are told, so we handle it as a special case. */ if( strncmp(zUri+7, "///", 3)==0 ){ iIn++; } }else if( strncmp(zUri+5, "//localhost/", 12)==0 ){ iIn = 16; } #else /* Discard the scheme and authority segments of the URI. */ if( zUri[5]=='/' && zUri[6]=='/' ){ iIn = 7; while( zUri[iIn] && zUri[iIn]!='/' ) iIn++; if( iIn!=7 && (iIn!=16 || memcmp("localhost", &zUri[7], 9)) ){ *pzErrMsg = sqlite3_mprintf("invalid uri authority: %.*s", iIn-7, &zUri[7]); |
︙ | ︙ | |||
129114 129115 129116 129117 129118 129119 129120 129121 129122 129123 129124 129125 129126 129127 | db->szMmap = sqlite3GlobalConfig.szMmap; db->nextPagesize = 0; db->nMaxSorterMmap = 0x7FFFFFFF; db->flags |= SQLITE_ShortColNames | SQLITE_EnableTrigger | SQLITE_CacheSpill #if !defined(SQLITE_DEFAULT_AUTOMATIC_INDEX) || SQLITE_DEFAULT_AUTOMATIC_INDEX | SQLITE_AutoIndex #endif #if SQLITE_DEFAULT_FILE_FORMAT<4 | SQLITE_LegacyFileFmt #endif #ifdef SQLITE_ENABLE_LOAD_EXTENSION | SQLITE_LoadExtension #endif #if SQLITE_DEFAULT_RECURSIVE_TRIGGERS | > > > | 130228 130229 130230 130231 130232 130233 130234 130235 130236 130237 130238 130239 130240 130241 130242 130243 130244 | db->szMmap = sqlite3GlobalConfig.szMmap; db->nextPagesize = 0; db->nMaxSorterMmap = 0x7FFFFFFF; db->flags |= SQLITE_ShortColNames | SQLITE_EnableTrigger | SQLITE_CacheSpill #if !defined(SQLITE_DEFAULT_AUTOMATIC_INDEX) || SQLITE_DEFAULT_AUTOMATIC_INDEX | SQLITE_AutoIndex #endif #if SQLITE_DEFAULT_CKPTFULLFSYNC | SQLITE_CkptFullFSync #endif #if SQLITE_DEFAULT_FILE_FORMAT<4 | SQLITE_LegacyFileFmt #endif #ifdef SQLITE_ENABLE_LOAD_EXTENSION | SQLITE_LoadExtension #endif #if SQLITE_DEFAULT_RECURSIVE_TRIGGERS |
︙ | ︙ | |||
129267 129268 129269 129270 129271 129272 129273 | sqlite3GlobalConfig.nLookaside); sqlite3_wal_autocheckpoint(db, SQLITE_DEFAULT_WAL_AUTOCHECKPOINT); opendb_out: sqlite3_free(zOpen); if( db ){ | | > | 130384 130385 130386 130387 130388 130389 130390 130391 130392 130393 130394 130395 130396 130397 130398 130399 | sqlite3GlobalConfig.nLookaside); sqlite3_wal_autocheckpoint(db, SQLITE_DEFAULT_WAL_AUTOCHECKPOINT); opendb_out: sqlite3_free(zOpen); if( db ){ assert( db->mutex!=0 || isThreadsafe==0 || sqlite3GlobalConfig.bFullMutex==0 ); sqlite3_mutex_leave(db->mutex); } rc = sqlite3_errcode(db); assert( db!=0 || rc==SQLITE_NOMEM ); if( rc==SQLITE_NOMEM ){ sqlite3_close(db); db = 0; |
︙ | ︙ | |||
129292 129293 129294 129295 129296 129297 129298 | #endif return sqlite3ApiExit(0, rc); } /* ** Open a new database handle. */ | | | | | 130410 130411 130412 130413 130414 130415 130416 130417 130418 130419 130420 130421 130422 130423 130424 130425 130426 130427 130428 130429 130430 130431 130432 130433 130434 130435 130436 130437 130438 130439 130440 130441 130442 130443 130444 | #endif return sqlite3ApiExit(0, rc); } /* ** Open a new database handle. */ SQLITE_API int SQLITE_STDCALL sqlite3_open( const char *zFilename, sqlite3 **ppDb ){ return openDatabase(zFilename, ppDb, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE, 0); } SQLITE_API int SQLITE_STDCALL sqlite3_open_v2( const char *filename, /* Database filename (UTF-8) */ sqlite3 **ppDb, /* OUT: SQLite db handle */ int flags, /* Flags */ const char *zVfs /* Name of VFS module to use */ ){ return openDatabase(filename, ppDb, (unsigned int)flags, zVfs); } #ifndef SQLITE_OMIT_UTF16 /* ** Open a new database handle. */ SQLITE_API int SQLITE_STDCALL sqlite3_open16( const void *zFilename, sqlite3 **ppDb ){ char const *zFilename8; /* zFilename encoded in UTF-8 instead of UTF-16 */ sqlite3_value *pVal; int rc; |
︙ | ︙ | |||
129351 129352 129353 129354 129355 129356 129357 | return sqlite3ApiExit(0, rc); } #endif /* SQLITE_OMIT_UTF16 */ /* ** Register a new collation sequence with the database handle db. */ | | | | 130469 130470 130471 130472 130473 130474 130475 130476 130477 130478 130479 130480 130481 130482 130483 130484 130485 130486 130487 130488 130489 130490 130491 130492 130493 130494 130495 130496 | return sqlite3ApiExit(0, rc); } #endif /* SQLITE_OMIT_UTF16 */ /* ** Register a new collation sequence with the database handle db. */ SQLITE_API int SQLITE_STDCALL sqlite3_create_collation( sqlite3* db, const char *zName, int enc, void* pCtx, int(*xCompare)(void*,int,const void*,int,const void*) ){ return sqlite3_create_collation_v2(db, zName, enc, pCtx, xCompare, 0); } /* ** Register a new collation sequence with the database handle db. */ SQLITE_API int SQLITE_STDCALL sqlite3_create_collation_v2( sqlite3* db, const char *zName, int enc, void* pCtx, int(*xCompare)(void*,int,const void*,int,const void*), void(*xDel)(void*) ){ |
︙ | ︙ | |||
129389 129390 129391 129392 129393 129394 129395 | return rc; } #ifndef SQLITE_OMIT_UTF16 /* ** Register a new collation sequence with the database handle db. */ | | | 130507 130508 130509 130510 130511 130512 130513 130514 130515 130516 130517 130518 130519 130520 130521 | return rc; } #ifndef SQLITE_OMIT_UTF16 /* ** Register a new collation sequence with the database handle db. */ SQLITE_API int SQLITE_STDCALL sqlite3_create_collation16( sqlite3* db, const void *zName, int enc, void* pCtx, int(*xCompare)(void*,int,const void*,int,const void*) ){ int rc = SQLITE_OK; |
︙ | ︙ | |||
129419 129420 129421 129422 129423 129424 129425 | } #endif /* SQLITE_OMIT_UTF16 */ /* ** Register a collation sequence factory callback with the database handle ** db. Replace any previously installed collation sequence factory. */ | | | | 130537 130538 130539 130540 130541 130542 130543 130544 130545 130546 130547 130548 130549 130550 130551 130552 130553 130554 130555 130556 130557 130558 130559 130560 130561 130562 130563 130564 130565 130566 130567 130568 130569 130570 130571 130572 | } #endif /* SQLITE_OMIT_UTF16 */ /* ** Register a collation sequence factory callback with the database handle ** db. Replace any previously installed collation sequence factory. */ SQLITE_API int SQLITE_STDCALL sqlite3_collation_needed( sqlite3 *db, void *pCollNeededArg, void(*xCollNeeded)(void*,sqlite3*,int eTextRep,const char*) ){ #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT; #endif sqlite3_mutex_enter(db->mutex); db->xCollNeeded = xCollNeeded; db->xCollNeeded16 = 0; db->pCollNeededArg = pCollNeededArg; sqlite3_mutex_leave(db->mutex); return SQLITE_OK; } #ifndef SQLITE_OMIT_UTF16 /* ** Register a collation sequence factory callback with the database handle ** db. Replace any previously installed collation sequence factory. */ SQLITE_API int SQLITE_STDCALL sqlite3_collation_needed16( sqlite3 *db, void *pCollNeededArg, void(*xCollNeeded16)(void*,sqlite3*,int eTextRep,const void*) ){ #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT; #endif |
︙ | ︙ | |||
129462 129463 129464 129465 129466 129467 129468 | #endif /* SQLITE_OMIT_UTF16 */ #ifndef SQLITE_OMIT_DEPRECATED /* ** This function is now an anachronism. It used to be used to recover from a ** malloc() failure, but SQLite now does this automatically. */ | | | | 130580 130581 130582 130583 130584 130585 130586 130587 130588 130589 130590 130591 130592 130593 130594 130595 130596 130597 130598 130599 130600 130601 130602 130603 130604 130605 | #endif /* SQLITE_OMIT_UTF16 */ #ifndef SQLITE_OMIT_DEPRECATED /* ** This function is now an anachronism. It used to be used to recover from a ** malloc() failure, but SQLite now does this automatically. */ SQLITE_API int SQLITE_STDCALL sqlite3_global_recover(void){ return SQLITE_OK; } #endif /* ** Test to see whether or not the database connection is in autocommit ** mode. Return TRUE if it is and FALSE if not. Autocommit mode is on ** by default. Autocommit is disabled by a BEGIN statement and reenabled ** by the next COMMIT or ROLLBACK. */ SQLITE_API int SQLITE_STDCALL sqlite3_get_autocommit(sqlite3 *db){ #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) ){ (void)SQLITE_MISUSE_BKPT; return 0; } #endif return db->autoCommit; |
︙ | ︙ | |||
129525 129526 129527 129528 129529 129530 129531 | /* ** This is a convenience routine that makes sure that all thread-specific ** data for this thread has been deallocated. ** ** SQLite no longer uses thread-specific data so this routine is now a ** no-op. It is retained for historical compatibility. */ | | | < > > > > > > > | 130643 130644 130645 130646 130647 130648 130649 130650 130651 130652 130653 130654 130655 130656 130657 130658 130659 130660 130661 130662 130663 130664 130665 130666 130667 130668 130669 130670 130671 130672 130673 130674 130675 130676 130677 130678 130679 130680 130681 130682 130683 130684 130685 130686 130687 130688 130689 130690 130691 130692 130693 | /* ** This is a convenience routine that makes sure that all thread-specific ** data for this thread has been deallocated. ** ** SQLite no longer uses thread-specific data so this routine is now a ** no-op. It is retained for historical compatibility. */ SQLITE_API void SQLITE_STDCALL sqlite3_thread_cleanup(void){ } #endif /* ** Return meta information about a specific column of a database table. ** See comment in sqlite3.h (sqlite.h.in) for details. */ SQLITE_API int SQLITE_STDCALL sqlite3_table_column_metadata( sqlite3 *db, /* Connection handle */ const char *zDbName, /* Database name or NULL */ const char *zTableName, /* Table name */ const char *zColumnName, /* Column name */ char const **pzDataType, /* OUTPUT: Declared data type */ char const **pzCollSeq, /* OUTPUT: Collation sequence name */ int *pNotNull, /* OUTPUT: True if NOT NULL constraint exists */ int *pPrimaryKey, /* OUTPUT: True if column part of PK */ int *pAutoinc /* OUTPUT: True if column is auto-increment */ ){ int rc; char *zErrMsg = 0; Table *pTab = 0; Column *pCol = 0; int iCol = 0; char const *zDataType = 0; char const *zCollSeq = 0; int notnull = 0; int primarykey = 0; int autoinc = 0; #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) || zTableName==0 ){ return SQLITE_MISUSE_BKPT; } #endif /* Ensure the database schema has been loaded */ sqlite3_mutex_enter(db->mutex); sqlite3BtreeEnterAll(db); rc = sqlite3Init(db, &zErrMsg); if( SQLITE_OK!=rc ){ goto error_out; } |
︙ | ︙ | |||
129645 129646 129647 129648 129649 129650 129651 | sqlite3_mutex_leave(db->mutex); return rc; } /* ** Sleep for a little while. Return the amount of time slept. */ | | | | | 130769 130770 130771 130772 130773 130774 130775 130776 130777 130778 130779 130780 130781 130782 130783 130784 130785 130786 130787 130788 130789 130790 130791 130792 130793 130794 130795 130796 130797 130798 130799 130800 130801 130802 130803 130804 130805 130806 130807 130808 130809 130810 130811 130812 | sqlite3_mutex_leave(db->mutex); return rc; } /* ** Sleep for a little while. Return the amount of time slept. */ SQLITE_API int SQLITE_STDCALL sqlite3_sleep(int ms){ sqlite3_vfs *pVfs; int rc; pVfs = sqlite3_vfs_find(0); if( pVfs==0 ) return 0; /* This function works in milliseconds, but the underlying OsSleep() ** API uses microseconds. Hence the 1000's. */ rc = (sqlite3OsSleep(pVfs, 1000*ms)/1000); return rc; } /* ** Enable or disable the extended result codes. */ SQLITE_API int SQLITE_STDCALL sqlite3_extended_result_codes(sqlite3 *db, int onoff){ #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT; #endif sqlite3_mutex_enter(db->mutex); db->errMask = onoff ? 0xffffffff : 0xff; sqlite3_mutex_leave(db->mutex); return SQLITE_OK; } /* ** Invoke the xFileControl method on a particular database. */ SQLITE_API int SQLITE_STDCALL sqlite3_file_control(sqlite3 *db, const char *zDbName, int op, void *pArg){ int rc = SQLITE_ERROR; Btree *pBtree; #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) ) return SQLITE_MISUSE_BKPT; #endif sqlite3_mutex_enter(db->mutex); |
︙ | ︙ | |||
129702 129703 129704 129705 129706 129707 129708 | rc = sqlite3OsFileControl(fd, op, pArg); }else{ rc = SQLITE_NOTFOUND; } sqlite3BtreeLeave(pBtree); } sqlite3_mutex_leave(db->mutex); | | | | 130826 130827 130828 130829 130830 130831 130832 130833 130834 130835 130836 130837 130838 130839 130840 130841 130842 130843 130844 130845 130846 | rc = sqlite3OsFileControl(fd, op, pArg); }else{ rc = SQLITE_NOTFOUND; } sqlite3BtreeLeave(pBtree); } sqlite3_mutex_leave(db->mutex); return rc; } /* ** Interface to the testing logic. */ SQLITE_API int SQLITE_CDECL sqlite3_test_control(int op, ...){ int rc = 0; #ifndef SQLITE_OMIT_BUILTIN_TEST va_list ap; va_start(ap, op); switch( op ){ /* |
︙ | ︙ | |||
130005 130006 130007 130008 130009 130010 130011 130012 130013 130014 130015 130016 130017 130018 130019 130020 130021 130022 130023 130024 130025 130026 130027 130028 | ** Return SQLITE_OK if SQLite has been initialized and SQLITE_ERROR if ** not. */ case SQLITE_TESTCTRL_ISINIT: { if( sqlite3GlobalConfig.isInit==0 ) rc = SQLITE_ERROR; break; } } va_end(ap); #endif /* SQLITE_OMIT_BUILTIN_TEST */ return rc; } /* ** This is a utility routine, useful to VFS implementations, that checks ** to see if a database file was a URI that contained a specific query ** parameter, and if so obtains the value of the query parameter. ** ** The zFilename argument is the filename pointer passed into the xOpen() ** method of a VFS implementation. The zParam argument is the name of the ** query parameter we seek. This routine returns the value of the zParam ** parameter if it exists. If the parameter does not exist, this routine ** returns a NULL pointer. */ | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | | | | 131129 131130 131131 131132 131133 131134 131135 131136 131137 131138 131139 131140 131141 131142 131143 131144 131145 131146 131147 131148 131149 131150 131151 131152 131153 131154 131155 131156 131157 131158 131159 131160 131161 131162 131163 131164 131165 131166 131167 131168 131169 131170 131171 131172 131173 131174 131175 131176 131177 131178 131179 131180 131181 131182 131183 131184 131185 131186 131187 131188 131189 131190 131191 131192 131193 131194 131195 131196 131197 131198 131199 131200 131201 131202 131203 131204 131205 131206 131207 131208 131209 131210 131211 131212 131213 | ** Return SQLITE_OK if SQLite has been initialized and SQLITE_ERROR if ** not. */ case SQLITE_TESTCTRL_ISINIT: { if( sqlite3GlobalConfig.isInit==0 ) rc = SQLITE_ERROR; break; } /* sqlite3_test_control(SQLITE_TESTCTRL_IMPOSTER, db, dbName, onOff, tnum); ** ** This test control is used to create imposter tables. "db" is a pointer ** to the database connection. dbName is the database name (ex: "main" or ** "temp") which will receive the imposter. "onOff" turns imposter mode on ** or off. "tnum" is the root page of the b-tree to which the imposter ** table should connect. ** ** Enable imposter mode only when the schema has already been parsed. Then ** run a single CREATE TABLE statement to construct the imposter table in ** the parsed schema. Then turn imposter mode back off again. ** ** If onOff==0 and tnum>0 then reset the schema for all databases, causing ** the schema to be reparsed the next time it is needed. This has the ** effect of erasing all imposter tables. */ case SQLITE_TESTCTRL_IMPOSTER: { sqlite3 *db = va_arg(ap, sqlite3*); sqlite3_mutex_enter(db->mutex); db->init.iDb = sqlite3FindDbName(db, va_arg(ap,const char*)); db->init.busy = db->init.imposterTable = va_arg(ap,int); db->init.newTnum = va_arg(ap,int); if( db->init.busy==0 && db->init.newTnum>0 ){ sqlite3ResetAllSchemasOfConnection(db); } sqlite3_mutex_leave(db->mutex); break; } } va_end(ap); #endif /* SQLITE_OMIT_BUILTIN_TEST */ return rc; } /* ** This is a utility routine, useful to VFS implementations, that checks ** to see if a database file was a URI that contained a specific query ** parameter, and if so obtains the value of the query parameter. ** ** The zFilename argument is the filename pointer passed into the xOpen() ** method of a VFS implementation. The zParam argument is the name of the ** query parameter we seek. This routine returns the value of the zParam ** parameter if it exists. If the parameter does not exist, this routine ** returns a NULL pointer. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_uri_parameter(const char *zFilename, const char *zParam){ if( zFilename==0 || zParam==0 ) return 0; zFilename += sqlite3Strlen30(zFilename) + 1; while( zFilename[0] ){ int x = strcmp(zFilename, zParam); zFilename += sqlite3Strlen30(zFilename) + 1; if( x==0 ) return zFilename; zFilename += sqlite3Strlen30(zFilename) + 1; } return 0; } /* ** Return a boolean value for a query parameter. */ SQLITE_API int SQLITE_STDCALL sqlite3_uri_boolean(const char *zFilename, const char *zParam, int bDflt){ const char *z = sqlite3_uri_parameter(zFilename, zParam); bDflt = bDflt!=0; return z ? sqlite3GetBoolean(z, bDflt) : bDflt; } /* ** Return a 64-bit integer value for a query parameter. */ SQLITE_API sqlite3_int64 SQLITE_STDCALL sqlite3_uri_int64( const char *zFilename, /* Filename as passed to xOpen */ const char *zParam, /* URI parameter sought */ sqlite3_int64 bDflt /* return if parameter is missing */ ){ const char *z = sqlite3_uri_parameter(zFilename, zParam); sqlite3_int64 v; if( z && sqlite3DecOrHexToI64(z, &v)==SQLITE_OK ){ |
︙ | ︙ | |||
130078 130079 130080 130081 130082 130083 130084 | return 0; } /* ** Return the filename of the database associated with a database ** connection. */ | | | | 131231 131232 131233 131234 131235 131236 131237 131238 131239 131240 131241 131242 131243 131244 131245 131246 131247 131248 131249 131250 131251 131252 131253 131254 131255 131256 131257 131258 131259 131260 131261 | return 0; } /* ** Return the filename of the database associated with a database ** connection. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_db_filename(sqlite3 *db, const char *zDbName){ Btree *pBt; #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) ){ (void)SQLITE_MISUSE_BKPT; return 0; } #endif pBt = sqlite3DbNameToBtree(db, zDbName); return pBt ? sqlite3BtreeGetFilename(pBt) : 0; } /* ** Return 1 if database is read-only or 0 if read/write. Return -1 if ** no such database exists. */ SQLITE_API int SQLITE_STDCALL sqlite3_db_readonly(sqlite3 *db, const char *zDbName){ Btree *pBt; #ifdef SQLITE_ENABLE_API_ARMOR if( !sqlite3SafetyCheckOk(db) ){ (void)SQLITE_MISUSE_BKPT; return -1; } #endif |
︙ | ︙ | |||
130253 130254 130255 130256 130257 130258 130259 | ** Otherwise, make arrangements to invoke xNotify when pOther drops ** its locks. ** ** Each call to this routine overrides any prior callbacks registered ** on the same "db". If xNotify==0 then any prior callbacks are immediately ** cancelled. */ | | | 131406 131407 131408 131409 131410 131411 131412 131413 131414 131415 131416 131417 131418 131419 131420 | ** Otherwise, make arrangements to invoke xNotify when pOther drops ** its locks. ** ** Each call to this routine overrides any prior callbacks registered ** on the same "db". If xNotify==0 then any prior callbacks are immediately ** cancelled. */ SQLITE_API int SQLITE_STDCALL sqlite3_unlock_notify( sqlite3 *db, void (*xNotify)(void **, int), void *pArg ){ int rc = SQLITE_OK; sqlite3_mutex_enter(db->mutex); |
︙ | ︙ | |||
132233 132234 132235 132236 132237 132238 132239 132240 132241 132242 132243 132244 132245 132246 132247 132248 132249 132250 132251 | ** ** If *pp does not being with a decimal digit SQLITE_ERROR is returned and ** the output value undefined. Otherwise SQLITE_OK is returned. ** ** This function is used when parsing the "prefix=" FTS4 parameter. */ static int fts3GobbleInt(const char **pp, int *pnOut){ const char *p; /* Iterator pointer */ int nInt = 0; /* Output value */ for(p=*pp; p[0]>='0' && p[0]<='9'; p++){ nInt = nInt * 10 + (p[0] - '0'); } if( p==*pp ) return SQLITE_ERROR; *pnOut = nInt; *pp = p; return SQLITE_OK; } | > > > > > | 133386 133387 133388 133389 133390 133391 133392 133393 133394 133395 133396 133397 133398 133399 133400 133401 133402 133403 133404 133405 133406 133407 133408 133409 | ** ** If *pp does not being with a decimal digit SQLITE_ERROR is returned and ** the output value undefined. Otherwise SQLITE_OK is returned. ** ** This function is used when parsing the "prefix=" FTS4 parameter. */ static int fts3GobbleInt(const char **pp, int *pnOut){ const int MAX_NPREFIX = 10000000; const char *p; /* Iterator pointer */ int nInt = 0; /* Output value */ for(p=*pp; p[0]>='0' && p[0]<='9'; p++){ nInt = nInt * 10 + (p[0] - '0'); if( nInt>MAX_NPREFIX ){ nInt = 0; break; } } if( p==*pp ) return SQLITE_ERROR; *pnOut = nInt; *pp = p; return SQLITE_OK; } |
︙ | ︙ | |||
132280 132281 132282 132283 132284 132285 132286 | for(p=zParam; *p; p++){ if( *p==',' ) nIndex++; } } aIndex = sqlite3_malloc(sizeof(struct Fts3Index) * nIndex); *apIndex = aIndex; | < | > > > > > | > > | 133438 133439 133440 133441 133442 133443 133444 133445 133446 133447 133448 133449 133450 133451 133452 133453 133454 133455 133456 133457 133458 133459 133460 133461 133462 133463 133464 133465 133466 133467 133468 133469 133470 133471 133472 133473 133474 | for(p=zParam; *p; p++){ if( *p==',' ) nIndex++; } } aIndex = sqlite3_malloc(sizeof(struct Fts3Index) * nIndex); *apIndex = aIndex; if( !aIndex ){ return SQLITE_NOMEM; } memset(aIndex, 0, sizeof(struct Fts3Index) * nIndex); if( zParam ){ const char *p = zParam; int i; for(i=1; i<nIndex; i++){ int nPrefix = 0; if( fts3GobbleInt(&p, &nPrefix) ) return SQLITE_ERROR; assert( nPrefix>=0 ); if( nPrefix==0 ){ nIndex--; i--; }else{ aIndex[i].nPrefix = nPrefix; } p++; } } *pnIndex = nIndex; return SQLITE_OK; } /* ** This function is called when initializing an FTS4 table that uses the ** content=xxx option. It determines the number of and names of the columns ** of the new FTS4 table. |
︙ | ︙ | |||
132420 132421 132422 132423 132424 132425 132426 | char *zCsr; /* Space for holding column names */ int nDb; /* Bytes required to hold database name */ int nName; /* Bytes required to hold table name */ int isFts4 = (argv[0][3]=='4'); /* True for FTS4, false for FTS3 */ const char **aCol; /* Array of column names */ sqlite3_tokenizer *pTokenizer = 0; /* Tokenizer for this table */ | | | 133584 133585 133586 133587 133588 133589 133590 133591 133592 133593 133594 133595 133596 133597 133598 | char *zCsr; /* Space for holding column names */ int nDb; /* Bytes required to hold database name */ int nName; /* Bytes required to hold table name */ int isFts4 = (argv[0][3]=='4'); /* True for FTS4, false for FTS3 */ const char **aCol; /* Array of column names */ sqlite3_tokenizer *pTokenizer = 0; /* Tokenizer for this table */ int nIndex = 0; /* Size of aIndex[] array */ struct Fts3Index *aIndex = 0; /* Array of indexes for this table */ /* The results of parsing supported FTS4 key=value options: */ int bNoDocsize = 0; /* True to omit %_docsize table */ int bDescIdx = 0; /* True to store descending indexes */ char *zPrefix = 0; /* Prefix parameter value (or NULL) */ char *zCompress = 0; /* compress=? parameter (or NULL) */ |
︙ | ︙ | |||
134487 134488 134489 134490 134491 134492 134493 | /* Compile a SELECT statement for this cursor. For a full-table-scan, the ** statement loops through all rows of the %_content table. For a ** full-text query or docid lookup, the statement retrieves a single ** row by docid. */ if( eSearch==FTS3_FULLSCAN_SEARCH ){ | > | > > > > > | | | > | 135651 135652 135653 135654 135655 135656 135657 135658 135659 135660 135661 135662 135663 135664 135665 135666 135667 135668 135669 135670 135671 135672 135673 135674 135675 | /* Compile a SELECT statement for this cursor. For a full-table-scan, the ** statement loops through all rows of the %_content table. For a ** full-text query or docid lookup, the statement retrieves a single ** row by docid. */ if( eSearch==FTS3_FULLSCAN_SEARCH ){ if( pDocidGe || pDocidLe ){ zSql = sqlite3_mprintf( "SELECT %s WHERE rowid BETWEEN %lld AND %lld ORDER BY rowid %s", p->zReadExprlist, pCsr->iMinDocid, pCsr->iMaxDocid, (pCsr->bDesc ? "DESC" : "ASC") ); }else{ zSql = sqlite3_mprintf("SELECT %s ORDER BY rowid %s", p->zReadExprlist, (pCsr->bDesc ? "DESC" : "ASC") ); } if( zSql ){ rc = sqlite3_prepare_v2(p->db, zSql, -1, &pCsr->pStmt, 0); sqlite3_free(zSql); }else{ rc = SQLITE_NOMEM; } }else if( eSearch==FTS3_DOCID_SEARCH ){ |
︙ | ︙ | |||
136979 136980 136981 136982 136983 136984 136985 | } iDocid = pExpr->iDocid; pIter = pPhrase->doclist.pList; if( iDocid!=pCsr->iPrevId || pExpr->bEof ){ int rc = SQLITE_OK; int bDescDoclist = pTab->bDescIdx; /* For DOCID_CMP macro */ | < | 138150 138151 138152 138153 138154 138155 138156 138157 138158 138159 138160 138161 138162 138163 | } iDocid = pExpr->iDocid; pIter = pPhrase->doclist.pList; if( iDocid!=pCsr->iPrevId || pExpr->bEof ){ int rc = SQLITE_OK; int bDescDoclist = pTab->bDescIdx; /* For DOCID_CMP macro */ int bOr = 0; u8 bEof = 0; u8 bTreeEof = 0; Fts3Expr *p; /* Used to iterate from pExpr to root */ Fts3Expr *pNear; /* Most senior NEAR ancestor (or pExpr) */ /* Check if this phrase descends from an OR expression node. If not, |
︙ | ︙ | |||
137102 137103 137104 137105 137106 137107 137108 | #if !SQLITE_CORE /* ** Initialize API pointer table, if required. */ #ifdef _WIN32 __declspec(dllexport) #endif | | | 138272 138273 138274 138275 138276 138277 138278 138279 138280 138281 138282 138283 138284 138285 138286 | #if !SQLITE_CORE /* ** Initialize API pointer table, if required. */ #ifdef _WIN32 __declspec(dllexport) #endif SQLITE_API int SQLITE_STDCALL sqlite3_fts3_init( sqlite3 *db, char **pzErrMsg, const sqlite3_api_routines *pApi ){ SQLITE_EXTENSION_INIT2(pApi) return sqlite3Fts3Init(db); } |
︙ | ︙ | |||
140070 140071 140072 140073 140074 140075 140076 | zName = sqlite3_value_text(argv[0]); nName = sqlite3_value_bytes(argv[0])+1; if( argc==2 ){ void *pOld; int n = sqlite3_value_bytes(argv[1]); | | > | > | 141240 141241 141242 141243 141244 141245 141246 141247 141248 141249 141250 141251 141252 141253 141254 141255 141256 141257 141258 141259 141260 141261 141262 141263 141264 141265 141266 141267 | zName = sqlite3_value_text(argv[0]); nName = sqlite3_value_bytes(argv[0])+1; if( argc==2 ){ void *pOld; int n = sqlite3_value_bytes(argv[1]); if( zName==0 || n!=sizeof(pPtr) ){ sqlite3_result_error(context, "argument type mismatch", -1); return; } pPtr = *(void **)sqlite3_value_blob(argv[1]); pOld = sqlite3Fts3HashInsert(pHash, (void *)zName, nName, pPtr); if( pOld==pPtr ){ sqlite3_result_error(context, "out of memory", -1); return; } }else{ if( zName ){ pPtr = sqlite3Fts3HashFind(pHash, zName, nName); } if( !pPtr ){ char *zErr = sqlite3_mprintf("unknown tokenizer: %s", zName); sqlite3_result_error(context, zErr, -1); sqlite3_free(zErr); return; } } |
︙ | ︙ | |||
140162 140163 140164 140165 140166 140167 140168 140169 140170 140171 140172 140173 140174 140175 | sqlite3_tokenizer_module *m; zCopy = sqlite3_mprintf("%s", zArg); if( !zCopy ) return SQLITE_NOMEM; zEnd = &zCopy[strlen(zCopy)]; z = (char *)sqlite3Fts3NextToken(zCopy, &n); z[n] = '\0'; sqlite3Fts3Dequote(z); m = (sqlite3_tokenizer_module *)sqlite3Fts3HashFind(pHash,z,(int)strlen(z)+1); if( !m ){ *pzErr = sqlite3_mprintf("unknown tokenizer: %s", z); rc = SQLITE_ERROR; | > > > > | 141334 141335 141336 141337 141338 141339 141340 141341 141342 141343 141344 141345 141346 141347 141348 141349 141350 141351 | sqlite3_tokenizer_module *m; zCopy = sqlite3_mprintf("%s", zArg); if( !zCopy ) return SQLITE_NOMEM; zEnd = &zCopy[strlen(zCopy)]; z = (char *)sqlite3Fts3NextToken(zCopy, &n); if( z==0 ){ assert( n==0 ); z = zCopy; } z[n] = '\0'; sqlite3Fts3Dequote(z); m = (sqlite3_tokenizer_module *)sqlite3Fts3HashFind(pHash,z,(int)strlen(z)+1); if( !m ){ *pzErr = sqlite3_mprintf("unknown tokenizer: %s", z); rc = SQLITE_ERROR; |
︙ | ︙ | |||
142807 142808 142809 142810 142811 142812 142813 | } /* ** This is a comparison function used as a qsort() callback when sorting ** an array of pending terms by term. This occurs as part of flushing ** the contents of the pending-terms hash table to the database. */ | | > > > | 143983 143984 143985 143986 143987 143988 143989 143990 143991 143992 143993 143994 143995 143996 143997 143998 143999 144000 | } /* ** This is a comparison function used as a qsort() callback when sorting ** an array of pending terms by term. This occurs as part of flushing ** the contents of the pending-terms hash table to the database. */ static int SQLITE_CDECL fts3CompareElemByTerm( const void *lhs, const void *rhs ){ char *z1 = fts3HashKey(*(Fts3HashElem **)lhs); char *z2 = fts3HashKey(*(Fts3HashElem **)rhs); int n1 = fts3HashKeysize(*(Fts3HashElem **)lhs); int n2 = fts3HashKeysize(*(Fts3HashElem **)rhs); int n = (n1<n2 ? n1 : n2); int c = memcmp(z1, z2, n); |
︙ | ︙ | |||
147526 147527 147528 147529 147530 147531 147532 | ); isShiftDone = 1; /* Now that the shift has been done, check if the initial "..." are ** required. They are required if (a) this is not the first fragment, ** or (b) this fragment does not begin at position 0 of its column. */ | | > | > > > | 148705 148706 148707 148708 148709 148710 148711 148712 148713 148714 148715 148716 148717 148718 148719 148720 148721 148722 148723 148724 | ); isShiftDone = 1; /* Now that the shift has been done, check if the initial "..." are ** required. They are required if (a) this is not the first fragment, ** or (b) this fragment does not begin at position 0 of its column. */ if( rc==SQLITE_OK ){ if( iPos>0 || iFragment>0 ){ rc = fts3StringAppend(pOut, zEllipsis, -1); }else if( iBegin ){ rc = fts3StringAppend(pOut, zDoc, iBegin); } } if( rc!=SQLITE_OK || iCurrent<iPos ) continue; } if( iCurrent>=(iPos+nSnippet) ){ if( isLast ){ rc = fts3StringAppend(pOut, zEllipsis, -1); |
︙ | ︙ | |||
148093 148094 148095 148096 148097 148098 148099 | /* Loop through all columns of the table being considered for snippets. ** If the iCol argument to this function was negative, this means all ** columns of the FTS3 table. Otherwise, only column iCol is considered. */ for(iRead=0; iRead<pTab->nColumn; iRead++){ SnippetFragment sF = {0, 0, 0, 0}; | | | 149276 149277 149278 149279 149280 149281 149282 149283 149284 149285 149286 149287 149288 149289 149290 | /* Loop through all columns of the table being considered for snippets. ** If the iCol argument to this function was negative, this means all ** columns of the FTS3 table. Otherwise, only column iCol is considered. */ for(iRead=0; iRead<pTab->nColumn; iRead++){ SnippetFragment sF = {0, 0, 0, 0}; int iS = 0; if( iCol>=0 && iRead!=iCol ) continue; /* Find the best snippet of nFToken tokens in column iRead. */ rc = fts3BestSnippet(nFToken, pCsr, iRead, mCovered, &mSeen, &sF, &iS); if( rc!=SQLITE_OK ){ goto snippet_out; } |
︙ | ︙ | |||
152536 152537 152538 152539 152540 152541 152542 | sqlite3_result_blob(ctx, pBlob, nBlob, sqlite3_free); } } /* ** Register a new geometry function for use with the r-tree MATCH operator. */ | | | 153719 153720 153721 153722 153723 153724 153725 153726 153727 153728 153729 153730 153731 153732 153733 | sqlite3_result_blob(ctx, pBlob, nBlob, sqlite3_free); } } /* ** Register a new geometry function for use with the r-tree MATCH operator. */ SQLITE_API int SQLITE_STDCALL sqlite3_rtree_geometry_callback( sqlite3 *db, /* Register SQL function on this connection */ const char *zGeom, /* Name of the new SQL function */ int (*xGeom)(sqlite3_rtree_geometry*,int,RtreeDValue*,int*), /* Callback */ void *pContext /* Extra data associated with the callback */ ){ RtreeGeomCallback *pGeomCtx; /* Context object for new user-function */ |
︙ | ︙ | |||
152560 152561 152562 152563 152564 152565 152566 | ); } /* ** Register a new 2nd-generation geometry function for use with the ** r-tree MATCH operator. */ | | | 153743 153744 153745 153746 153747 153748 153749 153750 153751 153752 153753 153754 153755 153756 153757 | ); } /* ** Register a new 2nd-generation geometry function for use with the ** r-tree MATCH operator. */ SQLITE_API int SQLITE_STDCALL sqlite3_rtree_query_callback( sqlite3 *db, /* Register SQL function on this connection */ const char *zQueryFunc, /* Name of new SQL function */ int (*xQueryFunc)(sqlite3_rtree_query_info*), /* Callback */ void *pContext, /* Extra data passed into the callback */ void (*xDestructor)(void*) /* Destructor for the extra data */ ){ RtreeGeomCallback *pGeomCtx; /* Context object for new user-function */ |
︙ | ︙ | |||
152585 152586 152587 152588 152589 152590 152591 | ); } #if !SQLITE_CORE #ifdef _WIN32 __declspec(dllexport) #endif | | | 153768 153769 153770 153771 153772 153773 153774 153775 153776 153777 153778 153779 153780 153781 153782 | ); } #if !SQLITE_CORE #ifdef _WIN32 __declspec(dllexport) #endif SQLITE_API int SQLITE_STDCALL sqlite3_rtree_init( sqlite3 *db, char **pzErrMsg, const sqlite3_api_routines *pApi ){ SQLITE_EXTENSION_INIT2(pApi) return sqlite3RtreeInit(db); } |
︙ | ︙ | |||
153090 153091 153092 153093 153094 153095 153096 | return rc; } #if !SQLITE_CORE #ifdef _WIN32 __declspec(dllexport) #endif | | | 154273 154274 154275 154276 154277 154278 154279 154280 154281 154282 154283 154284 154285 154286 154287 | return rc; } #if !SQLITE_CORE #ifdef _WIN32 __declspec(dllexport) #endif SQLITE_API int SQLITE_STDCALL sqlite3_icu_init( sqlite3 *db, char **pzErrMsg, const sqlite3_api_routines *pApi ){ SQLITE_EXTENSION_INIT2(pApi) return sqlite3IcuInit(db); } |
︙ | ︙ |
Changes to SQLite.Interop/src/core/sqlite3.h.
︙ | ︙ | |||
39 40 41 42 43 44 45 | */ #ifdef __cplusplus extern "C" { #endif /* | | < | > > > > > | 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 | */ #ifdef __cplusplus extern "C" { #endif /* ** Provide the ability to override linkage features of the interface. */ #ifndef SQLITE_EXTERN # define SQLITE_EXTERN extern #endif #ifndef SQLITE_API # define SQLITE_API #endif #ifndef SQLITE_CDECL # define SQLITE_CDECL #endif #ifndef SQLITE_STDCALL # define SQLITE_STDCALL #endif /* ** These no-op macros are used in front of interfaces to mark those ** interfaces as either deprecated or experimental. New applications ** should not use deprecated interfaces - they are supported for backwards ** compatibility only. Application writers should be aware that ** experimental interfaces are subject to change in point releases. |
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103 104 105 106 107 108 109 | ** string contains the date and time of the check-in (UTC) and an SHA1 ** hash of the entire source tree. ** ** See also: [sqlite3_libversion()], ** [sqlite3_libversion_number()], [sqlite3_sourceid()], ** [sqlite_version()] and [sqlite_source_id()]. */ | | | | | 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 | ** string contains the date and time of the check-in (UTC) and an SHA1 ** hash of the entire source tree. ** ** See also: [sqlite3_libversion()], ** [sqlite3_libversion_number()], [sqlite3_sourceid()], ** [sqlite_version()] and [sqlite_source_id()]. */ #define SQLITE_VERSION "3.8.9" #define SQLITE_VERSION_NUMBER 3008009 #define SQLITE_SOURCE_ID "2015-04-02 15:24:53 90701227085b8b8eb10a8eebe8d55f38b4778574" /* ** CAPI3REF: Run-Time Library Version Numbers ** KEYWORDS: sqlite3_version, sqlite3_sourceid ** ** These interfaces provide the same information as the [SQLITE_VERSION], ** [SQLITE_VERSION_NUMBER], and [SQLITE_SOURCE_ID] C preprocessor macros |
︙ | ︙ | |||
138 139 140 141 142 143 144 | ** [SQLITE_VERSION_NUMBER]. ^The sqlite3_sourceid() function returns ** a pointer to a string constant whose value is the same as the ** [SQLITE_SOURCE_ID] C preprocessor macro. ** ** See also: [sqlite_version()] and [sqlite_source_id()]. */ SQLITE_API SQLITE_EXTERN const char sqlite3_version[]; | | | | | 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 | ** [SQLITE_VERSION_NUMBER]. ^The sqlite3_sourceid() function returns ** a pointer to a string constant whose value is the same as the ** [SQLITE_SOURCE_ID] C preprocessor macro. ** ** See also: [sqlite_version()] and [sqlite_source_id()]. */ SQLITE_API SQLITE_EXTERN const char sqlite3_version[]; SQLITE_API const char *SQLITE_STDCALL sqlite3_libversion(void); SQLITE_API const char *SQLITE_STDCALL sqlite3_sourceid(void); SQLITE_API int SQLITE_STDCALL sqlite3_libversion_number(void); /* ** CAPI3REF: Run-Time Library Compilation Options Diagnostics ** ** ^The sqlite3_compileoption_used() function returns 0 or 1 ** indicating whether the specified option was defined at ** compile time. ^The SQLITE_ prefix may be omitted from the |
︙ | ︙ | |||
165 166 167 168 169 170 171 | ** and sqlite3_compileoption_get() may be omitted by specifying the ** [SQLITE_OMIT_COMPILEOPTION_DIAGS] option at compile time. ** ** See also: SQL functions [sqlite_compileoption_used()] and ** [sqlite_compileoption_get()] and the [compile_options pragma]. */ #ifndef SQLITE_OMIT_COMPILEOPTION_DIAGS | | | | 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 | ** and sqlite3_compileoption_get() may be omitted by specifying the ** [SQLITE_OMIT_COMPILEOPTION_DIAGS] option at compile time. ** ** See also: SQL functions [sqlite_compileoption_used()] and ** [sqlite_compileoption_get()] and the [compile_options pragma]. */ #ifndef SQLITE_OMIT_COMPILEOPTION_DIAGS SQLITE_API int SQLITE_STDCALL sqlite3_compileoption_used(const char *zOptName); SQLITE_API const char *SQLITE_STDCALL sqlite3_compileoption_get(int N); #endif /* ** CAPI3REF: Test To See If The Library Is Threadsafe ** ** ^The sqlite3_threadsafe() function returns zero if and only if ** SQLite was compiled with mutexing code omitted due to the |
︙ | ︙ | |||
205 206 207 208 209 210 211 | ** sqlite3_threadsafe() function shows only the compile-time setting of ** thread safety, not any run-time changes to that setting made by ** sqlite3_config(). In other words, the return value from sqlite3_threadsafe() ** is unchanged by calls to sqlite3_config().)^ ** ** See the [threading mode] documentation for additional information. */ | | | 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 | ** sqlite3_threadsafe() function shows only the compile-time setting of ** thread safety, not any run-time changes to that setting made by ** sqlite3_config(). In other words, the return value from sqlite3_threadsafe() ** is unchanged by calls to sqlite3_config().)^ ** ** See the [threading mode] documentation for additional information. */ SQLITE_API int SQLITE_STDCALL sqlite3_threadsafe(void); /* ** CAPI3REF: Database Connection Handle ** KEYWORDS: {database connection} {database connections} ** ** Each open SQLite database is represented by a pointer to an instance of ** the opaque structure named "sqlite3". It is useful to think of an sqlite3 |
︙ | ︙ | |||
301 302 303 304 305 306 307 | ** must be either a NULL ** pointer or an [sqlite3] object pointer obtained ** from [sqlite3_open()], [sqlite3_open16()], or ** [sqlite3_open_v2()], and not previously closed. ** ^Calling sqlite3_close() or sqlite3_close_v2() with a NULL pointer ** argument is a harmless no-op. */ | | | | 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 | ** must be either a NULL ** pointer or an [sqlite3] object pointer obtained ** from [sqlite3_open()], [sqlite3_open16()], or ** [sqlite3_open_v2()], and not previously closed. ** ^Calling sqlite3_close() or sqlite3_close_v2() with a NULL pointer ** argument is a harmless no-op. */ SQLITE_API int SQLITE_STDCALL sqlite3_close(sqlite3*); SQLITE_API int SQLITE_STDCALL sqlite3_close_v2(sqlite3*); /* ** The type for a callback function. ** This is legacy and deprecated. It is included for historical ** compatibility and is not documented. */ typedef int (*sqlite3_callback)(void*,int,char**, char**); |
︙ | ︙ | |||
372 373 374 375 376 377 378 | ** is a valid and open [database connection]. ** <li> The application must not close the [database connection] specified by ** the 1st parameter to sqlite3_exec() while sqlite3_exec() is running. ** <li> The application must not modify the SQL statement text passed into ** the 2nd parameter of sqlite3_exec() while sqlite3_exec() is running. ** </ul> */ | | | 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 | ** is a valid and open [database connection]. ** <li> The application must not close the [database connection] specified by ** the 1st parameter to sqlite3_exec() while sqlite3_exec() is running. ** <li> The application must not modify the SQL statement text passed into ** the 2nd parameter of sqlite3_exec() while sqlite3_exec() is running. ** </ul> */ SQLITE_API int SQLITE_STDCALL sqlite3_exec( sqlite3*, /* An open database */ const char *sql, /* SQL to be evaluated */ int (*callback)(void*,int,char**,char**), /* Callback function */ void *, /* 1st argument to callback */ char **errmsg /* Error msg written here */ ); |
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752 753 754 755 756 757 758 759 760 761 762 763 | ** CAPI3REF: Standard File Control Opcodes ** KEYWORDS: {file control opcodes} {file control opcode} ** ** These integer constants are opcodes for the xFileControl method ** of the [sqlite3_io_methods] object and for the [sqlite3_file_control()] ** interface. ** ** The [SQLITE_FCNTL_LOCKSTATE] opcode is used for debugging. This ** opcode causes the xFileControl method to write the current state of ** the lock (one of [SQLITE_LOCK_NONE], [SQLITE_LOCK_SHARED], ** [SQLITE_LOCK_RESERVED], [SQLITE_LOCK_PENDING], or [SQLITE_LOCK_EXCLUSIVE]) ** into an integer that the pArg argument points to. This capability | > > | | | | 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 | ** CAPI3REF: Standard File Control Opcodes ** KEYWORDS: {file control opcodes} {file control opcode} ** ** These integer constants are opcodes for the xFileControl method ** of the [sqlite3_io_methods] object and for the [sqlite3_file_control()] ** interface. ** ** <ul> ** <li>[[SQLITE_FCNTL_LOCKSTATE]] ** The [SQLITE_FCNTL_LOCKSTATE] opcode is used for debugging. This ** opcode causes the xFileControl method to write the current state of ** the lock (one of [SQLITE_LOCK_NONE], [SQLITE_LOCK_SHARED], ** [SQLITE_LOCK_RESERVED], [SQLITE_LOCK_PENDING], or [SQLITE_LOCK_EXCLUSIVE]) ** into an integer that the pArg argument points to. This capability ** is used during testing and is only available when the SQLITE_TEST ** compile-time option is used. ** ** <li>[[SQLITE_FCNTL_SIZE_HINT]] ** The [SQLITE_FCNTL_SIZE_HINT] opcode is used by SQLite to give the VFS ** layer a hint of how large the database file will grow to be during the ** current transaction. This hint is not guaranteed to be accurate but it ** is often close. The underlying VFS might choose to preallocate database ** file space based on this hint in order to help writes to the database ** file run faster. |
︙ | ︙ | |||
884 885 886 887 888 889 890 | ** of the char** argument point to a string obtained from [sqlite3_mprintf()] ** or the equivalent and that string will become the result of the pragma or ** the error message if the pragma fails. ^If the ** [SQLITE_FCNTL_PRAGMA] file control returns [SQLITE_NOTFOUND], then normal ** [PRAGMA] processing continues. ^If the [SQLITE_FCNTL_PRAGMA] ** file control returns [SQLITE_OK], then the parser assumes that the ** VFS has handled the PRAGMA itself and the parser generates a no-op | > > | | 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 | ** of the char** argument point to a string obtained from [sqlite3_mprintf()] ** or the equivalent and that string will become the result of the pragma or ** the error message if the pragma fails. ^If the ** [SQLITE_FCNTL_PRAGMA] file control returns [SQLITE_NOTFOUND], then normal ** [PRAGMA] processing continues. ^If the [SQLITE_FCNTL_PRAGMA] ** file control returns [SQLITE_OK], then the parser assumes that the ** VFS has handled the PRAGMA itself and the parser generates a no-op ** prepared statement if result string is NULL, or that returns a copy ** of the result string if the string is non-NULL. ** ^If the [SQLITE_FCNTL_PRAGMA] file control returns ** any result code other than [SQLITE_OK] or [SQLITE_NOTFOUND], that means ** that the VFS encountered an error while handling the [PRAGMA] and the ** compilation of the PRAGMA fails with an error. ^The [SQLITE_FCNTL_PRAGMA] ** file control occurs at the beginning of pragma statement analysis and so ** it is able to override built-in [PRAGMA] statements. ** ** <li>[[SQLITE_FCNTL_BUSYHANDLER]] |
︙ | ︙ | |||
942 943 944 945 946 947 948 949 950 951 | ** ** <li>[[SQLITE_FCNTL_WIN32_SET_HANDLE]] ** The [SQLITE_FCNTL_WIN32_SET_HANDLE] opcode is used for debugging. This ** opcode causes the xFileControl method to swap the file handle with the one ** pointed to by the pArg argument. This capability is used during testing ** and only needs to be supported when SQLITE_TEST is defined. ** ** </ul> */ #define SQLITE_FCNTL_LOCKSTATE 1 | > > > > > > > | | | > > > > > > > | 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 | ** ** <li>[[SQLITE_FCNTL_WIN32_SET_HANDLE]] ** The [SQLITE_FCNTL_WIN32_SET_HANDLE] opcode is used for debugging. This ** opcode causes the xFileControl method to swap the file handle with the one ** pointed to by the pArg argument. This capability is used during testing ** and only needs to be supported when SQLITE_TEST is defined. ** ** <li>[[SQLITE_FCNTL_WAL_BLOCK]] ** The [SQLITE_FCNTL_WAL_BLOCK] is a signal to the VFS layer that it might ** be advantageous to block on the next WAL lock if the lock is not immediately ** available. The WAL subsystem issues this signal during rare ** circumstances in order to fix a problem with priority inversion. ** Applications should <em>not</em> use this file-control. ** ** </ul> */ #define SQLITE_FCNTL_LOCKSTATE 1 #define SQLITE_FCNTL_GET_LOCKPROXYFILE 2 #define SQLITE_FCNTL_SET_LOCKPROXYFILE 3 #define SQLITE_FCNTL_LAST_ERRNO 4 #define SQLITE_FCNTL_SIZE_HINT 5 #define SQLITE_FCNTL_CHUNK_SIZE 6 #define SQLITE_FCNTL_FILE_POINTER 7 #define SQLITE_FCNTL_SYNC_OMITTED 8 #define SQLITE_FCNTL_WIN32_AV_RETRY 9 #define SQLITE_FCNTL_PERSIST_WAL 10 #define SQLITE_FCNTL_OVERWRITE 11 #define SQLITE_FCNTL_VFSNAME 12 #define SQLITE_FCNTL_POWERSAFE_OVERWRITE 13 #define SQLITE_FCNTL_PRAGMA 14 #define SQLITE_FCNTL_BUSYHANDLER 15 #define SQLITE_FCNTL_TEMPFILENAME 16 #define SQLITE_FCNTL_MMAP_SIZE 18 #define SQLITE_FCNTL_TRACE 19 #define SQLITE_FCNTL_HAS_MOVED 20 #define SQLITE_FCNTL_SYNC 21 #define SQLITE_FCNTL_COMMIT_PHASETWO 22 #define SQLITE_FCNTL_WIN32_SET_HANDLE 23 #define SQLITE_FCNTL_WAL_BLOCK 24 /* deprecated names */ #define SQLITE_GET_LOCKPROXYFILE SQLITE_FCNTL_GET_LOCKPROXYFILE #define SQLITE_SET_LOCKPROXYFILE SQLITE_FCNTL_SET_LOCKPROXYFILE #define SQLITE_LAST_ERRNO SQLITE_FCNTL_LAST_ERRNO /* ** CAPI3REF: Mutex Handle ** ** The mutex module within SQLite defines [sqlite3_mutex] to be an ** abstract type for a mutex object. The SQLite core never looks ** at the internal representation of an [sqlite3_mutex]. It only |
︙ | ︙ | |||
1314 1315 1316 1317 1318 1319 1320 | ** (using the [SQLITE_OS_OTHER=1] compile-time ** option) the application must supply a suitable implementation for ** sqlite3_os_init() and sqlite3_os_end(). An application-supplied ** implementation of sqlite3_os_init() or sqlite3_os_end() ** must return [SQLITE_OK] on success and some other [error code] upon ** failure. */ | | | | | | 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 | ** (using the [SQLITE_OS_OTHER=1] compile-time ** option) the application must supply a suitable implementation for ** sqlite3_os_init() and sqlite3_os_end(). An application-supplied ** implementation of sqlite3_os_init() or sqlite3_os_end() ** must return [SQLITE_OK] on success and some other [error code] upon ** failure. */ SQLITE_API int SQLITE_STDCALL sqlite3_initialize(void); SQLITE_API int SQLITE_STDCALL sqlite3_shutdown(void); SQLITE_API int SQLITE_STDCALL sqlite3_os_init(void); SQLITE_API int SQLITE_STDCALL sqlite3_os_end(void); /* ** CAPI3REF: Configuring The SQLite Library ** ** The sqlite3_config() interface is used to make global configuration ** changes to SQLite in order to tune SQLite to the specific needs of ** the application. The default configuration is recommended for most |
︙ | ︙ | |||
1348 1349 1350 1351 1352 1353 1354 | ** vary depending on the [configuration option] ** in the first argument. ** ** ^When a configuration option is set, sqlite3_config() returns [SQLITE_OK]. ** ^If the option is unknown or SQLite is unable to set the option ** then this routine returns a non-zero [error code]. */ | | | | 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 | ** vary depending on the [configuration option] ** in the first argument. ** ** ^When a configuration option is set, sqlite3_config() returns [SQLITE_OK]. ** ^If the option is unknown or SQLite is unable to set the option ** then this routine returns a non-zero [error code]. */ SQLITE_API int SQLITE_CDECL sqlite3_config(int, ...); /* ** CAPI3REF: Configure database connections ** ** The sqlite3_db_config() interface is used to make configuration ** changes to a [database connection]. The interface is similar to ** [sqlite3_config()] except that the changes apply to a single ** [database connection] (specified in the first argument). ** ** The second argument to sqlite3_db_config(D,V,...) is the ** [SQLITE_DBCONFIG_LOOKASIDE | configuration verb] - an integer code ** that indicates what aspect of the [database connection] is being configured. ** Subsequent arguments vary depending on the configuration verb. ** ** ^Calls to sqlite3_db_config() return SQLITE_OK if and only if ** the call is considered successful. */ SQLITE_API int SQLITE_CDECL sqlite3_db_config(sqlite3*, int op, ...); /* ** CAPI3REF: Memory Allocation Routines ** ** An instance of this object defines the interface between SQLite ** and low-level memory allocation routines. ** |
︙ | ︙ | |||
1526 1527 1528 1529 1530 1531 1532 | ** interpreted as a boolean, which enables or disables the collection of ** memory allocation statistics. ^(When memory allocation statistics are ** disabled, the following SQLite interfaces become non-operational: ** <ul> ** <li> [sqlite3_memory_used()] ** <li> [sqlite3_memory_highwater()] ** <li> [sqlite3_soft_heap_limit64()] | | | 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 | ** interpreted as a boolean, which enables or disables the collection of ** memory allocation statistics. ^(When memory allocation statistics are ** disabled, the following SQLite interfaces become non-operational: ** <ul> ** <li> [sqlite3_memory_used()] ** <li> [sqlite3_memory_highwater()] ** <li> [sqlite3_soft_heap_limit64()] ** <li> [sqlite3_status64()] ** </ul>)^ ** ^Memory allocation statistics are enabled by default unless SQLite is ** compiled with [SQLITE_DEFAULT_MEMSTATUS]=0 in which case memory ** allocation statistics are disabled by default. ** </dd> ** ** [[SQLITE_CONFIG_SCRATCH]] <dt>SQLITE_CONFIG_SCRATCH</dt> |
︙ | ︙ | |||
1737 1738 1739 1740 1741 1742 1743 | ** ** [[SQLITE_CONFIG_WIN32_HEAPSIZE]] ** <dt>SQLITE_CONFIG_WIN32_HEAPSIZE ** <dd>^The SQLITE_CONFIG_WIN32_HEAPSIZE option is only available if SQLite is ** compiled for Windows with the [SQLITE_WIN32_MALLOC] pre-processor macro ** defined. ^SQLITE_CONFIG_WIN32_HEAPSIZE takes a 32-bit unsigned integer value ** that specifies the maximum size of the created heap. | < | 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 | ** ** [[SQLITE_CONFIG_WIN32_HEAPSIZE]] ** <dt>SQLITE_CONFIG_WIN32_HEAPSIZE ** <dd>^The SQLITE_CONFIG_WIN32_HEAPSIZE option is only available if SQLite is ** compiled for Windows with the [SQLITE_WIN32_MALLOC] pre-processor macro ** defined. ^SQLITE_CONFIG_WIN32_HEAPSIZE takes a 32-bit unsigned integer value ** that specifies the maximum size of the created heap. ** ** [[SQLITE_CONFIG_PCACHE_HDRSZ]] ** <dt>SQLITE_CONFIG_PCACHE_HDRSZ ** <dd>^The SQLITE_CONFIG_PCACHE_HDRSZ option takes a single parameter which ** is a pointer to an integer and writes into that integer the number of extra ** bytes per page required for each page in [SQLITE_CONFIG_PAGECACHE]. ** The amount of extra space required can change depending on the compiler, |
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1855 1856 1857 1858 1859 1860 1861 | /* ** CAPI3REF: Enable Or Disable Extended Result Codes ** ** ^The sqlite3_extended_result_codes() routine enables or disables the ** [extended result codes] feature of SQLite. ^The extended result ** codes are disabled by default for historical compatibility. */ | | | 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 | /* ** CAPI3REF: Enable Or Disable Extended Result Codes ** ** ^The sqlite3_extended_result_codes() routine enables or disables the ** [extended result codes] feature of SQLite. ^The extended result ** codes are disabled by default for historical compatibility. */ SQLITE_API int SQLITE_STDCALL sqlite3_extended_result_codes(sqlite3*, int onoff); /* ** CAPI3REF: Last Insert Rowid ** ** ^Each entry in most SQLite tables (except for [WITHOUT ROWID] tables) ** has a unique 64-bit signed ** integer key called the [ROWID | "rowid"]. ^The rowid is always available |
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1906 1907 1908 1909 1910 1911 1912 | ** If a separate thread performs a new [INSERT] on the same ** database connection while the [sqlite3_last_insert_rowid()] ** function is running and thus changes the last insert [rowid], ** then the value returned by [sqlite3_last_insert_rowid()] is ** unpredictable and might not equal either the old or the new ** last insert [rowid]. */ | | | 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 | ** If a separate thread performs a new [INSERT] on the same ** database connection while the [sqlite3_last_insert_rowid()] ** function is running and thus changes the last insert [rowid], ** then the value returned by [sqlite3_last_insert_rowid()] is ** unpredictable and might not equal either the old or the new ** last insert [rowid]. */ SQLITE_API sqlite3_int64 SQLITE_STDCALL sqlite3_last_insert_rowid(sqlite3*); /* ** CAPI3REF: Count The Number Of Rows Modified ** ** ^This function returns the number of rows modified, inserted or ** deleted by the most recently completed INSERT, UPDATE or DELETE ** statement on the database connection specified by the only parameter. |
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1958 1959 1960 1961 1962 1963 1964 | ** See also the [sqlite3_total_changes()] interface, the ** [count_changes pragma], and the [changes() SQL function]. ** ** If a separate thread makes changes on the same database connection ** while [sqlite3_changes()] is running then the value returned ** is unpredictable and not meaningful. */ | | | 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 | ** See also the [sqlite3_total_changes()] interface, the ** [count_changes pragma], and the [changes() SQL function]. ** ** If a separate thread makes changes on the same database connection ** while [sqlite3_changes()] is running then the value returned ** is unpredictable and not meaningful. */ SQLITE_API int SQLITE_STDCALL sqlite3_changes(sqlite3*); /* ** CAPI3REF: Total Number Of Rows Modified ** ** ^This function returns the total number of rows inserted, modified or ** deleted by all [INSERT], [UPDATE] or [DELETE] statements completed ** since the database connection was opened, including those executed as |
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1981 1982 1983 1984 1985 1986 1987 | ** See also the [sqlite3_changes()] interface, the ** [count_changes pragma], and the [total_changes() SQL function]. ** ** If a separate thread makes changes on the same database connection ** while [sqlite3_total_changes()] is running then the value ** returned is unpredictable and not meaningful. */ | | | 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 | ** See also the [sqlite3_changes()] interface, the ** [count_changes pragma], and the [total_changes() SQL function]. ** ** If a separate thread makes changes on the same database connection ** while [sqlite3_total_changes()] is running then the value ** returned is unpredictable and not meaningful. */ SQLITE_API int SQLITE_STDCALL sqlite3_total_changes(sqlite3*); /* ** CAPI3REF: Interrupt A Long-Running Query ** ** ^This function causes any pending database operation to abort and ** return at its earliest opportunity. This routine is typically ** called in response to a user action such as pressing "Cancel" |
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2020 2021 2022 2023 2024 2025 2026 | ** ^A call to sqlite3_interrupt(D) that occurs when there are no running ** SQL statements is a no-op and has no effect on SQL statements ** that are started after the sqlite3_interrupt() call returns. ** ** If the database connection closes while [sqlite3_interrupt()] ** is running then bad things will likely happen. */ | | | 2041 2042 2043 2044 2045 2046 2047 2048 2049 2050 2051 2052 2053 2054 2055 | ** ^A call to sqlite3_interrupt(D) that occurs when there are no running ** SQL statements is a no-op and has no effect on SQL statements ** that are started after the sqlite3_interrupt() call returns. ** ** If the database connection closes while [sqlite3_interrupt()] ** is running then bad things will likely happen. */ SQLITE_API void SQLITE_STDCALL sqlite3_interrupt(sqlite3*); /* ** CAPI3REF: Determine If An SQL Statement Is Complete ** ** These routines are useful during command-line input to determine if the ** currently entered text seems to form a complete SQL statement or ** if additional input is needed before sending the text into |
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2055 2056 2057 2058 2059 2060 2061 | ** ** The input to [sqlite3_complete()] must be a zero-terminated ** UTF-8 string. ** ** The input to [sqlite3_complete16()] must be a zero-terminated ** UTF-16 string in native byte order. */ | | | | 2076 2077 2078 2079 2080 2081 2082 2083 2084 2085 2086 2087 2088 2089 2090 2091 | ** ** The input to [sqlite3_complete()] must be a zero-terminated ** UTF-8 string. ** ** The input to [sqlite3_complete16()] must be a zero-terminated ** UTF-16 string in native byte order. */ SQLITE_API int SQLITE_STDCALL sqlite3_complete(const char *sql); SQLITE_API int SQLITE_STDCALL sqlite3_complete16(const void *sql); /* ** CAPI3REF: Register A Callback To Handle SQLITE_BUSY Errors ** KEYWORDS: {busy-handler callback} {busy handler} ** ** ^The sqlite3_busy_handler(D,X,P) routine sets a callback function X ** that might be invoked with argument P whenever |
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2116 2117 2118 2119 2120 2121 2122 | ** database connection that invoked the busy handler. In other words, ** the busy handler is not reentrant. Any such actions ** result in undefined behavior. ** ** A busy handler must not close the database connection ** or [prepared statement] that invoked the busy handler. */ | | | 2137 2138 2139 2140 2141 2142 2143 2144 2145 2146 2147 2148 2149 2150 2151 | ** database connection that invoked the busy handler. In other words, ** the busy handler is not reentrant. Any such actions ** result in undefined behavior. ** ** A busy handler must not close the database connection ** or [prepared statement] that invoked the busy handler. */ SQLITE_API int SQLITE_STDCALL sqlite3_busy_handler(sqlite3*, int(*)(void*,int), void*); /* ** CAPI3REF: Set A Busy Timeout ** ** ^This routine sets a [sqlite3_busy_handler | busy handler] that sleeps ** for a specified amount of time when a table is locked. ^The handler ** will sleep multiple times until at least "ms" milliseconds of sleeping |
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2138 2139 2140 2141 2142 2143 2144 | ** ^(There can only be a single busy handler for a particular ** [database connection] at any given moment. If another busy handler ** was defined (using [sqlite3_busy_handler()]) prior to calling ** this routine, that other busy handler is cleared.)^ ** ** See also: [PRAGMA busy_timeout] */ | | | 2159 2160 2161 2162 2163 2164 2165 2166 2167 2168 2169 2170 2171 2172 2173 | ** ^(There can only be a single busy handler for a particular ** [database connection] at any given moment. If another busy handler ** was defined (using [sqlite3_busy_handler()]) prior to calling ** this routine, that other busy handler is cleared.)^ ** ** See also: [PRAGMA busy_timeout] */ SQLITE_API int SQLITE_STDCALL sqlite3_busy_timeout(sqlite3*, int ms); /* ** CAPI3REF: Convenience Routines For Running Queries ** ** This is a legacy interface that is preserved for backwards compatibility. ** Use of this interface is not recommended. ** |
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2212 2213 2214 2215 2216 2217 2218 | ** [sqlite3_exec()]. The sqlite3_get_table() routine does not have access ** to any internal data structures of SQLite. It uses only the public ** interface defined here. As a consequence, errors that occur in the ** wrapper layer outside of the internal [sqlite3_exec()] call are not ** reflected in subsequent calls to [sqlite3_errcode()] or ** [sqlite3_errmsg()]. */ | | | > > > > | 2233 2234 2235 2236 2237 2238 2239 2240 2241 2242 2243 2244 2245 2246 2247 2248 2249 2250 2251 2252 2253 2254 2255 2256 2257 2258 2259 2260 2261 2262 2263 2264 2265 | ** [sqlite3_exec()]. The sqlite3_get_table() routine does not have access ** to any internal data structures of SQLite. It uses only the public ** interface defined here. As a consequence, errors that occur in the ** wrapper layer outside of the internal [sqlite3_exec()] call are not ** reflected in subsequent calls to [sqlite3_errcode()] or ** [sqlite3_errmsg()]. */ SQLITE_API int SQLITE_STDCALL sqlite3_get_table( sqlite3 *db, /* An open database */ const char *zSql, /* SQL to be evaluated */ char ***pazResult, /* Results of the query */ int *pnRow, /* Number of result rows written here */ int *pnColumn, /* Number of result columns written here */ char **pzErrmsg /* Error msg written here */ ); SQLITE_API void SQLITE_STDCALL sqlite3_free_table(char **result); /* ** CAPI3REF: Formatted String Printing Functions ** ** These routines are work-alikes of the "printf()" family of functions ** from the standard C library. ** These routines understand most of the common K&R formatting options, ** plus some additional non-standard formats, detailed below. ** Note that some of the more obscure formatting options from recent ** C-library standards are omitted from this implementation. ** ** ^The sqlite3_mprintf() and sqlite3_vmprintf() routines write their ** results into memory obtained from [sqlite3_malloc()]. ** The strings returned by these two routines should be ** released by [sqlite3_free()]. ^Both routines return a ** NULL pointer if [sqlite3_malloc()] is unable to allocate enough ** memory to hold the resulting string. |
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2259 2260 2261 2262 2263 2264 2265 | ** written will be n-1 characters. ** ** ^The sqlite3_vsnprintf() routine is a varargs version of sqlite3_snprintf(). ** ** These routines all implement some additional formatting ** options that are useful for constructing SQL statements. ** All of the usual printf() formatting options apply. In addition, there | | | 2284 2285 2286 2287 2288 2289 2290 2291 2292 2293 2294 2295 2296 2297 2298 | ** written will be n-1 characters. ** ** ^The sqlite3_vsnprintf() routine is a varargs version of sqlite3_snprintf(). ** ** These routines all implement some additional formatting ** options that are useful for constructing SQL statements. ** All of the usual printf() formatting options apply. In addition, there ** is are "%q", "%Q", "%w" and "%z" options. ** ** ^(The %q option works like %s in that it substitutes a nul-terminated ** string from the argument list. But %q also doubles every '\'' character. ** %q is designed for use inside a string literal.)^ By doubling each '\'' ** character it escapes that character and allows it to be inserted into ** the string. ** |
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2311 2312 2313 2314 2315 2316 2317 2318 2319 2320 2321 2322 | ** char *zSQL = sqlite3_mprintf("INSERT INTO table VALUES(%Q)", zText); ** sqlite3_exec(db, zSQL, 0, 0, 0); ** sqlite3_free(zSQL); ** </pre></blockquote> ** ** The code above will render a correct SQL statement in the zSQL ** variable even if the zText variable is a NULL pointer. ** ** ^(The "%z" formatting option works like "%s" but with the ** addition that after the string has been read and copied into ** the result, [sqlite3_free()] is called on the input string.)^ */ | > > > > > > | | | | | 2336 2337 2338 2339 2340 2341 2342 2343 2344 2345 2346 2347 2348 2349 2350 2351 2352 2353 2354 2355 2356 2357 2358 2359 2360 2361 2362 2363 2364 | ** char *zSQL = sqlite3_mprintf("INSERT INTO table VALUES(%Q)", zText); ** sqlite3_exec(db, zSQL, 0, 0, 0); ** sqlite3_free(zSQL); ** </pre></blockquote> ** ** The code above will render a correct SQL statement in the zSQL ** variable even if the zText variable is a NULL pointer. ** ** ^(The "%w" formatting option is like "%q" except that it expects to ** be contained within double-quotes instead of single quotes, and it ** escapes the double-quote character instead of the single-quote ** character.)^ The "%w" formatting option is intended for safely inserting ** table and column names into a constructed SQL statement. ** ** ^(The "%z" formatting option works like "%s" but with the ** addition that after the string has been read and copied into ** the result, [sqlite3_free()] is called on the input string.)^ */ SQLITE_API char *SQLITE_CDECL sqlite3_mprintf(const char*,...); SQLITE_API char *SQLITE_STDCALL sqlite3_vmprintf(const char*, va_list); SQLITE_API char *SQLITE_CDECL sqlite3_snprintf(int,char*,const char*, ...); SQLITE_API char *SQLITE_STDCALL sqlite3_vsnprintf(int,char*,const char*, va_list); /* ** CAPI3REF: Memory Allocation Subsystem ** ** The SQLite core uses these three routines for all of its own ** internal memory allocation needs. "Core" in the previous sentence ** does not include operating-system specific VFS implementation. The |
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2409 2410 2411 2412 2413 2414 2415 | ** invocation of [sqlite3_malloc()] or [sqlite3_realloc()] that have ** not yet been released. ** ** The application must not read or write any part of ** a block of memory after it has been released using ** [sqlite3_free()] or [sqlite3_realloc()]. */ | | | | | | | | 2440 2441 2442 2443 2444 2445 2446 2447 2448 2449 2450 2451 2452 2453 2454 2455 2456 2457 2458 2459 | ** invocation of [sqlite3_malloc()] or [sqlite3_realloc()] that have ** not yet been released. ** ** The application must not read or write any part of ** a block of memory after it has been released using ** [sqlite3_free()] or [sqlite3_realloc()]. */ SQLITE_API void *SQLITE_STDCALL sqlite3_malloc(int); SQLITE_API void *SQLITE_STDCALL sqlite3_malloc64(sqlite3_uint64); SQLITE_API void *SQLITE_STDCALL sqlite3_realloc(void*, int); SQLITE_API void *SQLITE_STDCALL sqlite3_realloc64(void*, sqlite3_uint64); SQLITE_API void SQLITE_STDCALL sqlite3_free(void*); SQLITE_API sqlite3_uint64 SQLITE_STDCALL sqlite3_msize(void*); /* ** CAPI3REF: Memory Allocator Statistics ** ** SQLite provides these two interfaces for reporting on the status ** of the [sqlite3_malloc()], [sqlite3_free()], and [sqlite3_realloc()] ** routines, which form the built-in memory allocation subsystem. |
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2439 2440 2441 2442 2443 2444 2445 | ** ** ^The memory high-water mark is reset to the current value of ** [sqlite3_memory_used()] if and only if the parameter to ** [sqlite3_memory_highwater()] is true. ^The value returned ** by [sqlite3_memory_highwater(1)] is the high-water mark ** prior to the reset. */ | | | | 2470 2471 2472 2473 2474 2475 2476 2477 2478 2479 2480 2481 2482 2483 2484 2485 | ** ** ^The memory high-water mark is reset to the current value of ** [sqlite3_memory_used()] if and only if the parameter to ** [sqlite3_memory_highwater()] is true. ^The value returned ** by [sqlite3_memory_highwater(1)] is the high-water mark ** prior to the reset. */ SQLITE_API sqlite3_int64 SQLITE_STDCALL sqlite3_memory_used(void); SQLITE_API sqlite3_int64 SQLITE_STDCALL sqlite3_memory_highwater(int resetFlag); /* ** CAPI3REF: Pseudo-Random Number Generator ** ** SQLite contains a high-quality pseudo-random number generator (PRNG) used to ** select random [ROWID | ROWIDs] when inserting new records into a table that ** already uses the largest possible [ROWID]. The PRNG is also used for |
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2463 2464 2465 2466 2467 2468 2469 | ** seeded using randomness obtained from the xRandomness method of ** the default [sqlite3_vfs] object. ** ^If the previous call to this routine had an N of 1 or more and a ** non-NULL P then the pseudo-randomness is generated ** internally and without recourse to the [sqlite3_vfs] xRandomness ** method. */ | | | 2494 2495 2496 2497 2498 2499 2500 2501 2502 2503 2504 2505 2506 2507 2508 | ** seeded using randomness obtained from the xRandomness method of ** the default [sqlite3_vfs] object. ** ^If the previous call to this routine had an N of 1 or more and a ** non-NULL P then the pseudo-randomness is generated ** internally and without recourse to the [sqlite3_vfs] xRandomness ** method. */ SQLITE_API void SQLITE_STDCALL sqlite3_randomness(int N, void *P); /* ** CAPI3REF: Compile-Time Authorization Callbacks ** ** ^This routine registers an authorizer callback with a particular ** [database connection], supplied in the first argument. ** ^The authorizer callback is invoked as SQL statements are being compiled |
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2545 2546 2547 2548 2549 2550 2551 | ** ** ^Note that the authorizer callback is invoked only during ** [sqlite3_prepare()] or its variants. Authorization is not ** performed during statement evaluation in [sqlite3_step()], unless ** as stated in the previous paragraph, sqlite3_step() invokes ** sqlite3_prepare_v2() to reprepare a statement after a schema change. */ | | | 2576 2577 2578 2579 2580 2581 2582 2583 2584 2585 2586 2587 2588 2589 2590 | ** ** ^Note that the authorizer callback is invoked only during ** [sqlite3_prepare()] or its variants. Authorization is not ** performed during statement evaluation in [sqlite3_step()], unless ** as stated in the previous paragraph, sqlite3_step() invokes ** sqlite3_prepare_v2() to reprepare a statement after a schema change. */ SQLITE_API int SQLITE_STDCALL sqlite3_set_authorizer( sqlite3*, int (*xAuth)(void*,int,const char*,const char*,const char*,const char*), void *pUserData ); /* ** CAPI3REF: Authorizer Return Codes |
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2649 2650 2651 2652 2653 2654 2655 | ** time is in units of nanoseconds, however the current implementation ** is only capable of millisecond resolution so the six least significant ** digits in the time are meaningless. Future versions of SQLite ** might provide greater resolution on the profiler callback. The ** sqlite3_profile() function is considered experimental and is ** subject to change in future versions of SQLite. */ | | | | 2680 2681 2682 2683 2684 2685 2686 2687 2688 2689 2690 2691 2692 2693 2694 2695 | ** time is in units of nanoseconds, however the current implementation ** is only capable of millisecond resolution so the six least significant ** digits in the time are meaningless. Future versions of SQLite ** might provide greater resolution on the profiler callback. The ** sqlite3_profile() function is considered experimental and is ** subject to change in future versions of SQLite. */ SQLITE_API void *SQLITE_STDCALL sqlite3_trace(sqlite3*, void(*xTrace)(void*,const char*), void*); SQLITE_API SQLITE_EXPERIMENTAL void *SQLITE_STDCALL sqlite3_profile(sqlite3*, void(*xProfile)(void*,const char*,sqlite3_uint64), void*); /* ** CAPI3REF: Query Progress Callbacks ** ** ^The sqlite3_progress_handler(D,N,X,P) interface causes the callback ** function X to be invoked periodically during long running calls to |
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2684 2685 2686 2687 2688 2689 2690 | ** ** The progress handler callback must not do anything that will modify ** the database connection that invoked the progress handler. ** Note that [sqlite3_prepare_v2()] and [sqlite3_step()] both modify their ** database connections for the meaning of "modify" in this paragraph. ** */ | | | 2715 2716 2717 2718 2719 2720 2721 2722 2723 2724 2725 2726 2727 2728 2729 | ** ** The progress handler callback must not do anything that will modify ** the database connection that invoked the progress handler. ** Note that [sqlite3_prepare_v2()] and [sqlite3_step()] both modify their ** database connections for the meaning of "modify" in this paragraph. ** */ SQLITE_API void SQLITE_STDCALL sqlite3_progress_handler(sqlite3*, int, int(*)(void*), void*); /* ** CAPI3REF: Opening A New Database Connection ** ** ^These routines open an SQLite database file as specified by the ** filename argument. ^The filename argument is interpreted as UTF-8 for ** sqlite3_open() and sqlite3_open_v2() and as UTF-16 in the native byte |
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2912 2913 2914 2915 2916 2917 2918 | ** ** <b>Note to Windows Runtime users:</b> The temporary directory must be set ** prior to calling sqlite3_open() or sqlite3_open_v2(). Otherwise, various ** features that require the use of temporary files may fail. ** ** See also: [sqlite3_temp_directory] */ | | | | | 2943 2944 2945 2946 2947 2948 2949 2950 2951 2952 2953 2954 2955 2956 2957 2958 2959 2960 2961 2962 2963 2964 2965 | ** ** <b>Note to Windows Runtime users:</b> The temporary directory must be set ** prior to calling sqlite3_open() or sqlite3_open_v2(). Otherwise, various ** features that require the use of temporary files may fail. ** ** See also: [sqlite3_temp_directory] */ SQLITE_API int SQLITE_STDCALL sqlite3_open( const char *filename, /* Database filename (UTF-8) */ sqlite3 **ppDb /* OUT: SQLite db handle */ ); SQLITE_API int SQLITE_STDCALL sqlite3_open16( const void *filename, /* Database filename (UTF-16) */ sqlite3 **ppDb /* OUT: SQLite db handle */ ); SQLITE_API int SQLITE_STDCALL sqlite3_open_v2( const char *filename, /* Database filename (UTF-8) */ sqlite3 **ppDb, /* OUT: SQLite db handle */ int flags, /* Flags */ const char *zVfs /* Name of VFS module to use */ ); /* |
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2966 2967 2968 2969 2970 2971 2972 | ** ** If F is a NULL pointer, then sqlite3_uri_parameter(F,P) returns NULL and ** sqlite3_uri_boolean(F,P,B) returns B. If F is not a NULL pointer and ** is not a database file pathname pointer that SQLite passed into the xOpen ** VFS method, then the behavior of this routine is undefined and probably ** undesirable. */ | | | | > | | | | > | | 2997 2998 2999 3000 3001 3002 3003 3004 3005 3006 3007 3008 3009 3010 3011 3012 3013 3014 3015 3016 3017 3018 3019 3020 3021 3022 3023 3024 3025 | ** ** If F is a NULL pointer, then sqlite3_uri_parameter(F,P) returns NULL and ** sqlite3_uri_boolean(F,P,B) returns B. If F is not a NULL pointer and ** is not a database file pathname pointer that SQLite passed into the xOpen ** VFS method, then the behavior of this routine is undefined and probably ** undesirable. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_uri_parameter(const char *zFilename, const char *zParam); SQLITE_API int SQLITE_STDCALL sqlite3_uri_boolean(const char *zFile, const char *zParam, int bDefault); SQLITE_API sqlite3_int64 SQLITE_STDCALL sqlite3_uri_int64(const char*, const char*, sqlite3_int64); /* ** CAPI3REF: Error Codes And Messages ** ** ^If the most recent sqlite3_* API call associated with ** [database connection] D failed, then the sqlite3_errcode(D) interface ** returns the numeric [result code] or [extended result code] for that ** API call. ** If the most recent API call was successful, ** then the return value from sqlite3_errcode() is undefined. ** ^The sqlite3_extended_errcode() ** interface is the same except that it always returns the ** [extended result code] even when extended result codes are ** disabled. ** ** ^The sqlite3_errmsg() and sqlite3_errmsg16() return English-language ** text that describes the error, as either UTF-8 or UTF-16 respectively. ** ^(Memory to hold the error message string is managed internally. |
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3009 3010 3011 3012 3013 3014 3015 | ** to use D and invoking [sqlite3_mutex_leave]([sqlite3_db_mutex](D)) after ** all calls to the interfaces listed here are completed. ** ** If an interface fails with SQLITE_MISUSE, that means the interface ** was invoked incorrectly by the application. In that case, the ** error code and message may or may not be set. */ | | | | | | | 3042 3043 3044 3045 3046 3047 3048 3049 3050 3051 3052 3053 3054 3055 3056 3057 3058 3059 3060 | ** to use D and invoking [sqlite3_mutex_leave]([sqlite3_db_mutex](D)) after ** all calls to the interfaces listed here are completed. ** ** If an interface fails with SQLITE_MISUSE, that means the interface ** was invoked incorrectly by the application. In that case, the ** error code and message may or may not be set. */ SQLITE_API int SQLITE_STDCALL sqlite3_errcode(sqlite3 *db); SQLITE_API int SQLITE_STDCALL sqlite3_extended_errcode(sqlite3 *db); SQLITE_API const char *SQLITE_STDCALL sqlite3_errmsg(sqlite3*); SQLITE_API const void *SQLITE_STDCALL sqlite3_errmsg16(sqlite3*); SQLITE_API const char *SQLITE_STDCALL sqlite3_errstr(int); /* ** CAPI3REF: SQL Statement Object ** KEYWORDS: {prepared statement} {prepared statements} ** ** An instance of this object represents a single SQL statement. ** This object is variously known as a "prepared statement" or a |
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3080 3081 3082 3083 3084 3085 3086 | ** attack. Developers might also want to use the [sqlite3_set_authorizer()] ** interface to further control untrusted SQL. The size of the database ** created by an untrusted script can be contained using the ** [max_page_count] [PRAGMA]. ** ** New run-time limit categories may be added in future releases. */ | | | 3113 3114 3115 3116 3117 3118 3119 3120 3121 3122 3123 3124 3125 3126 3127 | ** attack. Developers might also want to use the [sqlite3_set_authorizer()] ** interface to further control untrusted SQL. The size of the database ** created by an untrusted script can be contained using the ** [max_page_count] [PRAGMA]. ** ** New run-time limit categories may be added in future releases. */ SQLITE_API int SQLITE_STDCALL sqlite3_limit(sqlite3*, int id, int newVal); /* ** CAPI3REF: Run-Time Limit Categories ** KEYWORDS: {limit category} {*limit categories} ** ** These constants define various performance limits ** that can be lowered at run-time using [sqlite3_limit()]. |
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3167 3168 3169 3170 3171 3172 3173 | ** [sqlite3_open16()]. The database connection must not have been closed. ** ** The second argument, "zSql", is the statement to be compiled, encoded ** as either UTF-8 or UTF-16. The sqlite3_prepare() and sqlite3_prepare_v2() ** interfaces use UTF-8, and sqlite3_prepare16() and sqlite3_prepare16_v2() ** use UTF-16. ** | | | | | < | | | | < | 3200 3201 3202 3203 3204 3205 3206 3207 3208 3209 3210 3211 3212 3213 3214 3215 3216 3217 3218 3219 3220 3221 | ** [sqlite3_open16()]. The database connection must not have been closed. ** ** The second argument, "zSql", is the statement to be compiled, encoded ** as either UTF-8 or UTF-16. The sqlite3_prepare() and sqlite3_prepare_v2() ** interfaces use UTF-8, and sqlite3_prepare16() and sqlite3_prepare16_v2() ** use UTF-16. ** ** ^If the nByte argument is negative, then zSql is read up to the ** first zero terminator. ^If nByte is positive, then it is the ** number of bytes read from zSql. ^If nByte is zero, then no prepared ** statement is generated. ** If the caller knows that the supplied string is nul-terminated, then ** there is a small performance advantage to passing an nByte parameter that ** is the number of bytes in the input string <i>including</i> ** the nul-terminator. ** ** ^If pzTail is not NULL then *pzTail is made to point to the first byte ** past the end of the first SQL statement in zSql. These routines only ** compile the first statement in zSql, so *pzTail is left pointing to ** what remains uncompiled. ** ** ^*ppStmt is left pointing to a compiled [prepared statement] that can be |
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3232 3233 3234 3235 3236 3237 3238 | ** ^The specific value of WHERE-clause [parameter] might influence the ** choice of query plan if the parameter is the left-hand side of a [LIKE] ** or [GLOB] operator or if the parameter is compared to an indexed column ** and the [SQLITE_ENABLE_STAT3] compile-time option is enabled. ** </li> ** </ol> */ | | | | | | | 3263 3264 3265 3266 3267 3268 3269 3270 3271 3272 3273 3274 3275 3276 3277 3278 3279 3280 3281 3282 3283 3284 3285 3286 3287 3288 3289 3290 3291 3292 3293 3294 3295 3296 3297 3298 3299 3300 3301 3302 3303 3304 3305 3306 3307 3308 3309 3310 3311 3312 3313 | ** ^The specific value of WHERE-clause [parameter] might influence the ** choice of query plan if the parameter is the left-hand side of a [LIKE] ** or [GLOB] operator or if the parameter is compared to an indexed column ** and the [SQLITE_ENABLE_STAT3] compile-time option is enabled. ** </li> ** </ol> */ SQLITE_API int SQLITE_STDCALL sqlite3_prepare( sqlite3 *db, /* Database handle */ const char *zSql, /* SQL statement, UTF-8 encoded */ int nByte, /* Maximum length of zSql in bytes. */ sqlite3_stmt **ppStmt, /* OUT: Statement handle */ const char **pzTail /* OUT: Pointer to unused portion of zSql */ ); SQLITE_API int SQLITE_STDCALL sqlite3_prepare_v2( sqlite3 *db, /* Database handle */ const char *zSql, /* SQL statement, UTF-8 encoded */ int nByte, /* Maximum length of zSql in bytes. */ sqlite3_stmt **ppStmt, /* OUT: Statement handle */ const char **pzTail /* OUT: Pointer to unused portion of zSql */ ); SQLITE_API int SQLITE_STDCALL sqlite3_prepare16( sqlite3 *db, /* Database handle */ const void *zSql, /* SQL statement, UTF-16 encoded */ int nByte, /* Maximum length of zSql in bytes. */ sqlite3_stmt **ppStmt, /* OUT: Statement handle */ const void **pzTail /* OUT: Pointer to unused portion of zSql */ ); SQLITE_API int SQLITE_STDCALL sqlite3_prepare16_v2( sqlite3 *db, /* Database handle */ const void *zSql, /* SQL statement, UTF-16 encoded */ int nByte, /* Maximum length of zSql in bytes. */ sqlite3_stmt **ppStmt, /* OUT: Statement handle */ const void **pzTail /* OUT: Pointer to unused portion of zSql */ ); /* ** CAPI3REF: Retrieving Statement SQL ** ** ^This interface can be used to retrieve a saved copy of the original ** SQL text used to create a [prepared statement] if that statement was ** compiled using either [sqlite3_prepare_v2()] or [sqlite3_prepare16_v2()]. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_sql(sqlite3_stmt *pStmt); /* ** CAPI3REF: Determine If An SQL Statement Writes The Database ** ** ^The sqlite3_stmt_readonly(X) interface returns true (non-zero) if ** and only if the [prepared statement] X makes no direct changes to ** the content of the database file. |
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3299 3300 3301 3302 3303 3304 3305 | ** since the statements themselves do not actually modify the database but ** rather they control the timing of when other statements modify the ** database. ^The [ATTACH] and [DETACH] statements also cause ** sqlite3_stmt_readonly() to return true since, while those statements ** change the configuration of a database connection, they do not make ** changes to the content of the database files on disk. */ | | | | 3330 3331 3332 3333 3334 3335 3336 3337 3338 3339 3340 3341 3342 3343 3344 3345 3346 3347 3348 3349 3350 3351 3352 3353 3354 3355 3356 3357 3358 3359 3360 3361 3362 3363 | ** since the statements themselves do not actually modify the database but ** rather they control the timing of when other statements modify the ** database. ^The [ATTACH] and [DETACH] statements also cause ** sqlite3_stmt_readonly() to return true since, while those statements ** change the configuration of a database connection, they do not make ** changes to the content of the database files on disk. */ SQLITE_API int SQLITE_STDCALL sqlite3_stmt_readonly(sqlite3_stmt *pStmt); /* ** CAPI3REF: Determine If A Prepared Statement Has Been Reset ** ** ^The sqlite3_stmt_busy(S) interface returns true (non-zero) if the ** [prepared statement] S has been stepped at least once using ** [sqlite3_step(S)] but has not run to completion and/or has not ** been reset using [sqlite3_reset(S)]. ^The sqlite3_stmt_busy(S) ** interface returns false if S is a NULL pointer. If S is not a ** NULL pointer and is not a pointer to a valid [prepared statement] ** object, then the behavior is undefined and probably undesirable. ** ** This interface can be used in combination [sqlite3_next_stmt()] ** to locate all prepared statements associated with a database ** connection that are in need of being reset. This can be used, ** for example, in diagnostic routines to search for prepared ** statements that are holding a transaction open. */ SQLITE_API int SQLITE_STDCALL sqlite3_stmt_busy(sqlite3_stmt*); /* ** CAPI3REF: Dynamically Typed Value Object ** KEYWORDS: {protected sqlite3_value} {unprotected sqlite3_value} ** ** SQLite uses the sqlite3_value object to represent all values ** that can be stored in a database table. SQLite uses dynamic typing |
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3479 3480 3481 3482 3483 3484 3485 | ** [SQLITE_MAX_LENGTH]. ** ^[SQLITE_RANGE] is returned if the parameter ** index is out of range. ^[SQLITE_NOMEM] is returned if malloc() fails. ** ** See also: [sqlite3_bind_parameter_count()], ** [sqlite3_bind_parameter_name()], and [sqlite3_bind_parameter_index()]. */ | | | | | | | | | | | | | | 3510 3511 3512 3513 3514 3515 3516 3517 3518 3519 3520 3521 3522 3523 3524 3525 3526 3527 3528 3529 3530 3531 3532 3533 3534 3535 3536 3537 3538 3539 3540 3541 3542 3543 3544 3545 3546 3547 3548 3549 3550 3551 3552 3553 3554 3555 3556 | ** [SQLITE_MAX_LENGTH]. ** ^[SQLITE_RANGE] is returned if the parameter ** index is out of range. ^[SQLITE_NOMEM] is returned if malloc() fails. ** ** See also: [sqlite3_bind_parameter_count()], ** [sqlite3_bind_parameter_name()], and [sqlite3_bind_parameter_index()]. */ SQLITE_API int SQLITE_STDCALL sqlite3_bind_blob(sqlite3_stmt*, int, const void*, int n, void(*)(void*)); SQLITE_API int SQLITE_STDCALL sqlite3_bind_blob64(sqlite3_stmt*, int, const void*, sqlite3_uint64, void(*)(void*)); SQLITE_API int SQLITE_STDCALL sqlite3_bind_double(sqlite3_stmt*, int, double); SQLITE_API int SQLITE_STDCALL sqlite3_bind_int(sqlite3_stmt*, int, int); SQLITE_API int SQLITE_STDCALL sqlite3_bind_int64(sqlite3_stmt*, int, sqlite3_int64); SQLITE_API int SQLITE_STDCALL sqlite3_bind_null(sqlite3_stmt*, int); SQLITE_API int SQLITE_STDCALL sqlite3_bind_text(sqlite3_stmt*,int,const char*,int,void(*)(void*)); SQLITE_API int SQLITE_STDCALL sqlite3_bind_text16(sqlite3_stmt*, int, const void*, int, void(*)(void*)); SQLITE_API int SQLITE_STDCALL sqlite3_bind_text64(sqlite3_stmt*, int, const char*, sqlite3_uint64, void(*)(void*), unsigned char encoding); SQLITE_API int SQLITE_STDCALL sqlite3_bind_value(sqlite3_stmt*, int, const sqlite3_value*); SQLITE_API int SQLITE_STDCALL sqlite3_bind_zeroblob(sqlite3_stmt*, int, int n); /* ** CAPI3REF: Number Of SQL Parameters ** ** ^This routine can be used to find the number of [SQL parameters] ** in a [prepared statement]. SQL parameters are tokens of the ** form "?", "?NNN", ":AAA", "$AAA", or "@AAA" that serve as ** placeholders for values that are [sqlite3_bind_blob | bound] ** to the parameters at a later time. ** ** ^(This routine actually returns the index of the largest (rightmost) ** parameter. For all forms except ?NNN, this will correspond to the ** number of unique parameters. If parameters of the ?NNN form are used, ** there may be gaps in the list.)^ ** ** See also: [sqlite3_bind_blob|sqlite3_bind()], ** [sqlite3_bind_parameter_name()], and ** [sqlite3_bind_parameter_index()]. */ SQLITE_API int SQLITE_STDCALL sqlite3_bind_parameter_count(sqlite3_stmt*); /* ** CAPI3REF: Name Of A Host Parameter ** ** ^The sqlite3_bind_parameter_name(P,N) interface returns ** the name of the N-th [SQL parameter] in the [prepared statement] P. ** ^(SQL parameters of the form "?NNN" or ":AAA" or "@AAA" or "$AAA" |
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3538 3539 3540 3541 3542 3543 3544 | ** originally specified as UTF-16 in [sqlite3_prepare16()] or ** [sqlite3_prepare16_v2()]. ** ** See also: [sqlite3_bind_blob|sqlite3_bind()], ** [sqlite3_bind_parameter_count()], and ** [sqlite3_bind_parameter_index()]. */ | | | | | | 3569 3570 3571 3572 3573 3574 3575 3576 3577 3578 3579 3580 3581 3582 3583 3584 3585 3586 3587 3588 3589 3590 3591 3592 3593 3594 3595 3596 3597 3598 3599 3600 3601 3602 3603 3604 3605 3606 3607 3608 3609 3610 3611 3612 3613 3614 3615 3616 3617 3618 3619 | ** originally specified as UTF-16 in [sqlite3_prepare16()] or ** [sqlite3_prepare16_v2()]. ** ** See also: [sqlite3_bind_blob|sqlite3_bind()], ** [sqlite3_bind_parameter_count()], and ** [sqlite3_bind_parameter_index()]. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_bind_parameter_name(sqlite3_stmt*, int); /* ** CAPI3REF: Index Of A Parameter With A Given Name ** ** ^Return the index of an SQL parameter given its name. ^The ** index value returned is suitable for use as the second ** parameter to [sqlite3_bind_blob|sqlite3_bind()]. ^A zero ** is returned if no matching parameter is found. ^The parameter ** name must be given in UTF-8 even if the original statement ** was prepared from UTF-16 text using [sqlite3_prepare16_v2()]. ** ** See also: [sqlite3_bind_blob|sqlite3_bind()], ** [sqlite3_bind_parameter_count()], and ** [sqlite3_bind_parameter_index()]. */ SQLITE_API int SQLITE_STDCALL sqlite3_bind_parameter_index(sqlite3_stmt*, const char *zName); /* ** CAPI3REF: Reset All Bindings On A Prepared Statement ** ** ^Contrary to the intuition of many, [sqlite3_reset()] does not reset ** the [sqlite3_bind_blob | bindings] on a [prepared statement]. ** ^Use this routine to reset all host parameters to NULL. */ SQLITE_API int SQLITE_STDCALL sqlite3_clear_bindings(sqlite3_stmt*); /* ** CAPI3REF: Number Of Columns In A Result Set ** ** ^Return the number of columns in the result set returned by the ** [prepared statement]. ^This routine returns 0 if pStmt is an SQL ** statement that does not return data (for example an [UPDATE]). ** ** See also: [sqlite3_data_count()] */ SQLITE_API int SQLITE_STDCALL sqlite3_column_count(sqlite3_stmt *pStmt); /* ** CAPI3REF: Column Names In A Result Set ** ** ^These routines return the name assigned to a particular column ** in the result set of a [SELECT] statement. ^The sqlite3_column_name() ** interface returns a pointer to a zero-terminated UTF-8 string |
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3602 3603 3604 3605 3606 3607 3608 | ** NULL pointer is returned. ** ** ^The name of a result column is the value of the "AS" clause for ** that column, if there is an AS clause. If there is no AS clause ** then the name of the column is unspecified and may change from ** one release of SQLite to the next. */ | | | | 3633 3634 3635 3636 3637 3638 3639 3640 3641 3642 3643 3644 3645 3646 3647 3648 | ** NULL pointer is returned. ** ** ^The name of a result column is the value of the "AS" clause for ** that column, if there is an AS clause. If there is no AS clause ** then the name of the column is unspecified and may change from ** one release of SQLite to the next. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_column_name(sqlite3_stmt*, int N); SQLITE_API const void *SQLITE_STDCALL sqlite3_column_name16(sqlite3_stmt*, int N); /* ** CAPI3REF: Source Of Data In A Query Result ** ** ^These routines provide a means to determine the database, table, and ** table column that is the origin of a particular result column in ** [SELECT] statement. |
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3650 3651 3652 3653 3654 3655 3656 | ** undefined. ** ** If two or more threads call one or more ** [sqlite3_column_database_name | column metadata interfaces] ** for the same [prepared statement] and result column ** at the same time then the results are undefined. */ | | | | | | | | 3681 3682 3683 3684 3685 3686 3687 3688 3689 3690 3691 3692 3693 3694 3695 3696 3697 3698 3699 3700 | ** undefined. ** ** If two or more threads call one or more ** [sqlite3_column_database_name | column metadata interfaces] ** for the same [prepared statement] and result column ** at the same time then the results are undefined. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_column_database_name(sqlite3_stmt*,int); SQLITE_API const void *SQLITE_STDCALL sqlite3_column_database_name16(sqlite3_stmt*,int); SQLITE_API const char *SQLITE_STDCALL sqlite3_column_table_name(sqlite3_stmt*,int); SQLITE_API const void *SQLITE_STDCALL sqlite3_column_table_name16(sqlite3_stmt*,int); SQLITE_API const char *SQLITE_STDCALL sqlite3_column_origin_name(sqlite3_stmt*,int); SQLITE_API const void *SQLITE_STDCALL sqlite3_column_origin_name16(sqlite3_stmt*,int); /* ** CAPI3REF: Declared Datatype Of A Query Result ** ** ^(The first parameter is a [prepared statement]. ** If this statement is a [SELECT] statement and the Nth column of the ** returned result set of that [SELECT] is a table column (not an |
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3686 3687 3688 3689 3690 3691 3692 | ** ^SQLite uses dynamic run-time typing. ^So just because a column ** is declared to contain a particular type does not mean that the ** data stored in that column is of the declared type. SQLite is ** strongly typed, but the typing is dynamic not static. ^Type ** is associated with individual values, not with the containers ** used to hold those values. */ | | | | 3717 3718 3719 3720 3721 3722 3723 3724 3725 3726 3727 3728 3729 3730 3731 3732 | ** ^SQLite uses dynamic run-time typing. ^So just because a column ** is declared to contain a particular type does not mean that the ** data stored in that column is of the declared type. SQLite is ** strongly typed, but the typing is dynamic not static. ^Type ** is associated with individual values, not with the containers ** used to hold those values. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_column_decltype(sqlite3_stmt*,int); SQLITE_API const void *SQLITE_STDCALL sqlite3_column_decltype16(sqlite3_stmt*,int); /* ** CAPI3REF: Evaluate An SQL Statement ** ** After a [prepared statement] has been prepared using either ** [sqlite3_prepare_v2()] or [sqlite3_prepare16_v2()] or one of the legacy ** interfaces [sqlite3_prepare()] or [sqlite3_prepare16()], this function |
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3766 3767 3768 3769 3770 3771 3772 | ** We admit that this is a goofy design. The problem has been fixed ** with the "v2" interface. If you prepare all of your SQL statements ** using either [sqlite3_prepare_v2()] or [sqlite3_prepare16_v2()] instead ** of the legacy [sqlite3_prepare()] and [sqlite3_prepare16()] interfaces, ** then the more specific [error codes] are returned directly ** by sqlite3_step(). The use of the "v2" interface is recommended. */ | | | | 3797 3798 3799 3800 3801 3802 3803 3804 3805 3806 3807 3808 3809 3810 3811 3812 3813 3814 3815 3816 3817 3818 3819 3820 3821 3822 3823 3824 3825 3826 3827 3828 3829 3830 3831 | ** We admit that this is a goofy design. The problem has been fixed ** with the "v2" interface. If you prepare all of your SQL statements ** using either [sqlite3_prepare_v2()] or [sqlite3_prepare16_v2()] instead ** of the legacy [sqlite3_prepare()] and [sqlite3_prepare16()] interfaces, ** then the more specific [error codes] are returned directly ** by sqlite3_step(). The use of the "v2" interface is recommended. */ SQLITE_API int SQLITE_STDCALL sqlite3_step(sqlite3_stmt*); /* ** CAPI3REF: Number of columns in a result set ** ** ^The sqlite3_data_count(P) interface returns the number of columns in the ** current row of the result set of [prepared statement] P. ** ^If prepared statement P does not have results ready to return ** (via calls to the [sqlite3_column_int | sqlite3_column_*()] of ** interfaces) then sqlite3_data_count(P) returns 0. ** ^The sqlite3_data_count(P) routine also returns 0 if P is a NULL pointer. ** ^The sqlite3_data_count(P) routine returns 0 if the previous call to ** [sqlite3_step](P) returned [SQLITE_DONE]. ^The sqlite3_data_count(P) ** will return non-zero if previous call to [sqlite3_step](P) returned ** [SQLITE_ROW], except in the case of the [PRAGMA incremental_vacuum] ** where it always returns zero since each step of that multi-step ** pragma returns 0 columns of data. ** ** See also: [sqlite3_column_count()] */ SQLITE_API int SQLITE_STDCALL sqlite3_data_count(sqlite3_stmt *pStmt); /* ** CAPI3REF: Fundamental Datatypes ** KEYWORDS: SQLITE_TEXT ** ** ^(Every value in SQLite has one of five fundamental datatypes: ** |
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3982 3983 3984 3985 3986 3987 3988 | ** ** ^(If a memory allocation error occurs during the evaluation of any ** of these routines, a default value is returned. The default value ** is either the integer 0, the floating point number 0.0, or a NULL ** pointer. Subsequent calls to [sqlite3_errcode()] will return ** [SQLITE_NOMEM].)^ */ | | | | | | | | | | | | 4013 4014 4015 4016 4017 4018 4019 4020 4021 4022 4023 4024 4025 4026 4027 4028 4029 4030 4031 4032 4033 4034 4035 4036 | ** ** ^(If a memory allocation error occurs during the evaluation of any ** of these routines, a default value is returned. The default value ** is either the integer 0, the floating point number 0.0, or a NULL ** pointer. Subsequent calls to [sqlite3_errcode()] will return ** [SQLITE_NOMEM].)^ */ SQLITE_API const void *SQLITE_STDCALL sqlite3_column_blob(sqlite3_stmt*, int iCol); SQLITE_API int SQLITE_STDCALL sqlite3_column_bytes(sqlite3_stmt*, int iCol); SQLITE_API int SQLITE_STDCALL sqlite3_column_bytes16(sqlite3_stmt*, int iCol); SQLITE_API double SQLITE_STDCALL sqlite3_column_double(sqlite3_stmt*, int iCol); SQLITE_API int SQLITE_STDCALL sqlite3_column_int(sqlite3_stmt*, int iCol); SQLITE_API sqlite3_int64 SQLITE_STDCALL sqlite3_column_int64(sqlite3_stmt*, int iCol); SQLITE_API const unsigned char *SQLITE_STDCALL sqlite3_column_text(sqlite3_stmt*, int iCol); SQLITE_API const void *SQLITE_STDCALL sqlite3_column_text16(sqlite3_stmt*, int iCol); SQLITE_API int SQLITE_STDCALL sqlite3_column_type(sqlite3_stmt*, int iCol); SQLITE_API sqlite3_value *SQLITE_STDCALL sqlite3_column_value(sqlite3_stmt*, int iCol); /* ** CAPI3REF: Destroy A Prepared Statement Object ** ** ^The sqlite3_finalize() function is called to delete a [prepared statement]. ** ^If the most recent evaluation of the statement encountered no errors ** or if the statement is never been evaluated, then sqlite3_finalize() returns |
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4018 4019 4020 4021 4022 4023 4024 | ** ** The application must finalize every [prepared statement] in order to avoid ** resource leaks. It is a grievous error for the application to try to use ** a prepared statement after it has been finalized. Any use of a prepared ** statement after it has been finalized can result in undefined and ** undesirable behavior such as segfaults and heap corruption. */ | | | 4049 4050 4051 4052 4053 4054 4055 4056 4057 4058 4059 4060 4061 4062 4063 | ** ** The application must finalize every [prepared statement] in order to avoid ** resource leaks. It is a grievous error for the application to try to use ** a prepared statement after it has been finalized. Any use of a prepared ** statement after it has been finalized can result in undefined and ** undesirable behavior such as segfaults and heap corruption. */ SQLITE_API int SQLITE_STDCALL sqlite3_finalize(sqlite3_stmt *pStmt); /* ** CAPI3REF: Reset A Prepared Statement Object ** ** The sqlite3_reset() function is called to reset a [prepared statement] ** object back to its initial state, ready to be re-executed. ** ^Any SQL statement variables that had values bound to them using |
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4044 4045 4046 4047 4048 4049 4050 | ** ^If the most recent call to [sqlite3_step(S)] for the ** [prepared statement] S indicated an error, then ** [sqlite3_reset(S)] returns an appropriate [error code]. ** ** ^The [sqlite3_reset(S)] interface does not change the values ** of any [sqlite3_bind_blob|bindings] on the [prepared statement] S. */ | | | 4075 4076 4077 4078 4079 4080 4081 4082 4083 4084 4085 4086 4087 4088 4089 | ** ^If the most recent call to [sqlite3_step(S)] for the ** [prepared statement] S indicated an error, then ** [sqlite3_reset(S)] returns an appropriate [error code]. ** ** ^The [sqlite3_reset(S)] interface does not change the values ** of any [sqlite3_bind_blob|bindings] on the [prepared statement] S. */ SQLITE_API int SQLITE_STDCALL sqlite3_reset(sqlite3_stmt *pStmt); /* ** CAPI3REF: Create Or Redefine SQL Functions ** KEYWORDS: {function creation routines} ** KEYWORDS: {application-defined SQL function} ** KEYWORDS: {application-defined SQL functions} ** |
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4143 4144 4145 4146 4147 4148 4149 | ** ^Built-in functions may be overloaded by new application-defined functions. ** ** ^An application-defined function is permitted to call other ** SQLite interfaces. However, such calls must not ** close the database connection nor finalize or reset the prepared ** statement in which the function is running. */ | | | | | 4174 4175 4176 4177 4178 4179 4180 4181 4182 4183 4184 4185 4186 4187 4188 4189 4190 4191 4192 4193 4194 4195 4196 4197 4198 4199 4200 4201 4202 4203 4204 4205 4206 4207 4208 | ** ^Built-in functions may be overloaded by new application-defined functions. ** ** ^An application-defined function is permitted to call other ** SQLite interfaces. However, such calls must not ** close the database connection nor finalize or reset the prepared ** statement in which the function is running. */ SQLITE_API int SQLITE_STDCALL sqlite3_create_function( sqlite3 *db, const char *zFunctionName, int nArg, int eTextRep, void *pApp, void (*xFunc)(sqlite3_context*,int,sqlite3_value**), void (*xStep)(sqlite3_context*,int,sqlite3_value**), void (*xFinal)(sqlite3_context*) ); SQLITE_API int SQLITE_STDCALL sqlite3_create_function16( sqlite3 *db, const void *zFunctionName, int nArg, int eTextRep, void *pApp, void (*xFunc)(sqlite3_context*,int,sqlite3_value**), void (*xStep)(sqlite3_context*,int,sqlite3_value**), void (*xFinal)(sqlite3_context*) ); SQLITE_API int SQLITE_STDCALL sqlite3_create_function_v2( sqlite3 *db, const char *zFunctionName, int nArg, int eTextRep, void *pApp, void (*xFunc)(sqlite3_context*,int,sqlite3_value**), void (*xStep)(sqlite3_context*,int,sqlite3_value**), |
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4205 4206 4207 4208 4209 4210 4211 | /* ** CAPI3REF: Deprecated Functions ** DEPRECATED ** ** These functions are [deprecated]. In order to maintain ** backwards compatibility with older code, these functions continue ** to be supported. However, new applications should avoid | | | | | | | | | | 4236 4237 4238 4239 4240 4241 4242 4243 4244 4245 4246 4247 4248 4249 4250 4251 4252 4253 4254 4255 4256 4257 4258 4259 | /* ** CAPI3REF: Deprecated Functions ** DEPRECATED ** ** These functions are [deprecated]. In order to maintain ** backwards compatibility with older code, these functions continue ** to be supported. However, new applications should avoid ** the use of these functions. To encourage programmers to avoid ** these functions, we will not explain what they do. */ #ifndef SQLITE_OMIT_DEPRECATED SQLITE_API SQLITE_DEPRECATED int SQLITE_STDCALL sqlite3_aggregate_count(sqlite3_context*); SQLITE_API SQLITE_DEPRECATED int SQLITE_STDCALL sqlite3_expired(sqlite3_stmt*); SQLITE_API SQLITE_DEPRECATED int SQLITE_STDCALL sqlite3_transfer_bindings(sqlite3_stmt*, sqlite3_stmt*); SQLITE_API SQLITE_DEPRECATED int SQLITE_STDCALL sqlite3_global_recover(void); SQLITE_API SQLITE_DEPRECATED void SQLITE_STDCALL sqlite3_thread_cleanup(void); SQLITE_API SQLITE_DEPRECATED int SQLITE_STDCALL sqlite3_memory_alarm(void(*)(void*,sqlite3_int64,int), void*,sqlite3_int64); #endif /* ** CAPI3REF: Obtaining SQL Function Parameter Values ** ** The C-language implementation of SQL functions and aggregates uses |
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4263 4264 4265 4266 4267 4268 4269 | ** [sqlite3_value_text16()] can be invalidated by a subsequent call to ** [sqlite3_value_bytes()], [sqlite3_value_bytes16()], [sqlite3_value_text()], ** or [sqlite3_value_text16()]. ** ** These routines must be called from the same thread as ** the SQL function that supplied the [sqlite3_value*] parameters. */ | | | | | | | | | | | | | | 4294 4295 4296 4297 4298 4299 4300 4301 4302 4303 4304 4305 4306 4307 4308 4309 4310 4311 4312 4313 4314 4315 4316 4317 4318 4319 | ** [sqlite3_value_text16()] can be invalidated by a subsequent call to ** [sqlite3_value_bytes()], [sqlite3_value_bytes16()], [sqlite3_value_text()], ** or [sqlite3_value_text16()]. ** ** These routines must be called from the same thread as ** the SQL function that supplied the [sqlite3_value*] parameters. */ SQLITE_API const void *SQLITE_STDCALL sqlite3_value_blob(sqlite3_value*); SQLITE_API int SQLITE_STDCALL sqlite3_value_bytes(sqlite3_value*); SQLITE_API int SQLITE_STDCALL sqlite3_value_bytes16(sqlite3_value*); SQLITE_API double SQLITE_STDCALL sqlite3_value_double(sqlite3_value*); SQLITE_API int SQLITE_STDCALL sqlite3_value_int(sqlite3_value*); SQLITE_API sqlite3_int64 SQLITE_STDCALL sqlite3_value_int64(sqlite3_value*); SQLITE_API const unsigned char *SQLITE_STDCALL sqlite3_value_text(sqlite3_value*); SQLITE_API const void *SQLITE_STDCALL sqlite3_value_text16(sqlite3_value*); SQLITE_API const void *SQLITE_STDCALL sqlite3_value_text16le(sqlite3_value*); SQLITE_API const void *SQLITE_STDCALL sqlite3_value_text16be(sqlite3_value*); SQLITE_API int SQLITE_STDCALL sqlite3_value_type(sqlite3_value*); SQLITE_API int SQLITE_STDCALL sqlite3_value_numeric_type(sqlite3_value*); /* ** CAPI3REF: Obtain Aggregate Function Context ** ** Implementations of aggregate SQL functions use this ** routine to allocate memory for storing their state. ** |
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4318 4319 4320 4321 4322 4323 4324 | ** [sqlite3_context | SQL function context] that is the first parameter ** to the xStep or xFinal callback routine that implements the aggregate ** function. ** ** This routine must be called from the same thread in which ** the aggregate SQL function is running. */ | | | | | 4349 4350 4351 4352 4353 4354 4355 4356 4357 4358 4359 4360 4361 4362 4363 4364 4365 4366 4367 4368 4369 4370 4371 4372 4373 4374 4375 4376 4377 4378 4379 4380 4381 4382 4383 4384 4385 4386 4387 4388 | ** [sqlite3_context | SQL function context] that is the first parameter ** to the xStep or xFinal callback routine that implements the aggregate ** function. ** ** This routine must be called from the same thread in which ** the aggregate SQL function is running. */ SQLITE_API void *SQLITE_STDCALL sqlite3_aggregate_context(sqlite3_context*, int nBytes); /* ** CAPI3REF: User Data For Functions ** ** ^The sqlite3_user_data() interface returns a copy of ** the pointer that was the pUserData parameter (the 5th parameter) ** of the [sqlite3_create_function()] ** and [sqlite3_create_function16()] routines that originally ** registered the application defined function. ** ** This routine must be called from the same thread in which ** the application-defined function is running. */ SQLITE_API void *SQLITE_STDCALL sqlite3_user_data(sqlite3_context*); /* ** CAPI3REF: Database Connection For Functions ** ** ^The sqlite3_context_db_handle() interface returns a copy of ** the pointer to the [database connection] (the 1st parameter) ** of the [sqlite3_create_function()] ** and [sqlite3_create_function16()] routines that originally ** registered the application defined function. */ SQLITE_API sqlite3 *SQLITE_STDCALL sqlite3_context_db_handle(sqlite3_context*); /* ** CAPI3REF: Function Auxiliary Data ** ** These functions may be used by (non-aggregate) SQL functions to ** associate metadata with argument values. If the same value is passed to ** multiple invocations of the same SQL function during query execution, under |
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4395 4396 4397 4398 4399 4400 4401 | ** ^(In practice, metadata is preserved between function calls for ** function parameters that are compile-time constants, including literal ** values and [parameters] and expressions composed from the same.)^ ** ** These routines must be called from the same thread in which ** the SQL function is running. */ | | | | 4426 4427 4428 4429 4430 4431 4432 4433 4434 4435 4436 4437 4438 4439 4440 4441 | ** ^(In practice, metadata is preserved between function calls for ** function parameters that are compile-time constants, including literal ** values and [parameters] and expressions composed from the same.)^ ** ** These routines must be called from the same thread in which ** the SQL function is running. */ SQLITE_API void *SQLITE_STDCALL sqlite3_get_auxdata(sqlite3_context*, int N); SQLITE_API void SQLITE_STDCALL sqlite3_set_auxdata(sqlite3_context*, int N, void*, void (*)(void*)); /* ** CAPI3REF: Constants Defining Special Destructor Behavior ** ** These are special values for the destructor that is passed in as the ** final argument to routines like [sqlite3_result_blob()]. ^If the destructor |
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4531 4532 4533 4534 4535 4536 4537 | ** [unprotected sqlite3_value] object is required, so either ** kind of [sqlite3_value] object can be used with this interface. ** ** If these routines are called from within the different thread ** than the one containing the application-defined function that received ** the [sqlite3_context] pointer, the results are undefined. */ | | | | | | | | | | | | | | | | | | | | 4562 4563 4564 4565 4566 4567 4568 4569 4570 4571 4572 4573 4574 4575 4576 4577 4578 4579 4580 4581 4582 4583 4584 4585 4586 4587 4588 4589 4590 4591 4592 4593 4594 4595 | ** [unprotected sqlite3_value] object is required, so either ** kind of [sqlite3_value] object can be used with this interface. ** ** If these routines are called from within the different thread ** than the one containing the application-defined function that received ** the [sqlite3_context] pointer, the results are undefined. */ SQLITE_API void SQLITE_STDCALL sqlite3_result_blob(sqlite3_context*, const void*, int, void(*)(void*)); SQLITE_API void SQLITE_STDCALL sqlite3_result_blob64(sqlite3_context*,const void*, sqlite3_uint64,void(*)(void*)); SQLITE_API void SQLITE_STDCALL sqlite3_result_double(sqlite3_context*, double); SQLITE_API void SQLITE_STDCALL sqlite3_result_error(sqlite3_context*, const char*, int); SQLITE_API void SQLITE_STDCALL sqlite3_result_error16(sqlite3_context*, const void*, int); SQLITE_API void SQLITE_STDCALL sqlite3_result_error_toobig(sqlite3_context*); SQLITE_API void SQLITE_STDCALL sqlite3_result_error_nomem(sqlite3_context*); SQLITE_API void SQLITE_STDCALL sqlite3_result_error_code(sqlite3_context*, int); SQLITE_API void SQLITE_STDCALL sqlite3_result_int(sqlite3_context*, int); SQLITE_API void SQLITE_STDCALL sqlite3_result_int64(sqlite3_context*, sqlite3_int64); SQLITE_API void SQLITE_STDCALL sqlite3_result_null(sqlite3_context*); SQLITE_API void SQLITE_STDCALL sqlite3_result_text(sqlite3_context*, const char*, int, void(*)(void*)); SQLITE_API void SQLITE_STDCALL sqlite3_result_text64(sqlite3_context*, const char*,sqlite3_uint64, void(*)(void*), unsigned char encoding); SQLITE_API void SQLITE_STDCALL sqlite3_result_text16(sqlite3_context*, const void*, int, void(*)(void*)); SQLITE_API void SQLITE_STDCALL sqlite3_result_text16le(sqlite3_context*, const void*, int,void(*)(void*)); SQLITE_API void SQLITE_STDCALL sqlite3_result_text16be(sqlite3_context*, const void*, int,void(*)(void*)); SQLITE_API void SQLITE_STDCALL sqlite3_result_value(sqlite3_context*, sqlite3_value*); SQLITE_API void SQLITE_STDCALL sqlite3_result_zeroblob(sqlite3_context*, int n); /* ** CAPI3REF: Define New Collating Sequences ** ** ^These functions add, remove, or modify a [collation] associated ** with the [database connection] specified as the first argument. ** |
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4631 4632 4633 4634 4635 4636 4637 | ** themselves rather than expecting SQLite to deal with it for them. ** This is different from every other SQLite interface. The inconsistency ** is unfortunate but cannot be changed without breaking backwards ** compatibility. ** ** See also: [sqlite3_collation_needed()] and [sqlite3_collation_needed16()]. */ | | | | | 4662 4663 4664 4665 4666 4667 4668 4669 4670 4671 4672 4673 4674 4675 4676 4677 4678 4679 4680 4681 4682 4683 4684 4685 4686 4687 4688 4689 4690 4691 | ** themselves rather than expecting SQLite to deal with it for them. ** This is different from every other SQLite interface. The inconsistency ** is unfortunate but cannot be changed without breaking backwards ** compatibility. ** ** See also: [sqlite3_collation_needed()] and [sqlite3_collation_needed16()]. */ SQLITE_API int SQLITE_STDCALL sqlite3_create_collation( sqlite3*, const char *zName, int eTextRep, void *pArg, int(*xCompare)(void*,int,const void*,int,const void*) ); SQLITE_API int SQLITE_STDCALL sqlite3_create_collation_v2( sqlite3*, const char *zName, int eTextRep, void *pArg, int(*xCompare)(void*,int,const void*,int,const void*), void(*xDestroy)(void*) ); SQLITE_API int SQLITE_STDCALL sqlite3_create_collation16( sqlite3*, const void *zName, int eTextRep, void *pArg, int(*xCompare)(void*,int,const void*,int,const void*) ); |
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4680 4681 4682 4683 4684 4685 4686 | ** sequence function required. The fourth parameter is the name of the ** required collation sequence.)^ ** ** The callback function should register the desired collation using ** [sqlite3_create_collation()], [sqlite3_create_collation16()], or ** [sqlite3_create_collation_v2()]. */ | | | | | | | | | | 4711 4712 4713 4714 4715 4716 4717 4718 4719 4720 4721 4722 4723 4724 4725 4726 4727 4728 4729 4730 4731 4732 4733 4734 4735 4736 4737 4738 4739 4740 4741 4742 4743 4744 4745 4746 4747 4748 4749 4750 4751 4752 4753 4754 4755 4756 4757 4758 4759 4760 4761 4762 4763 4764 4765 4766 4767 4768 4769 4770 4771 4772 4773 4774 4775 4776 4777 4778 4779 4780 4781 4782 4783 4784 4785 4786 | ** sequence function required. The fourth parameter is the name of the ** required collation sequence.)^ ** ** The callback function should register the desired collation using ** [sqlite3_create_collation()], [sqlite3_create_collation16()], or ** [sqlite3_create_collation_v2()]. */ SQLITE_API int SQLITE_STDCALL sqlite3_collation_needed( sqlite3*, void*, void(*)(void*,sqlite3*,int eTextRep,const char*) ); SQLITE_API int SQLITE_STDCALL sqlite3_collation_needed16( sqlite3*, void*, void(*)(void*,sqlite3*,int eTextRep,const void*) ); #ifdef SQLITE_HAS_CODEC /* ** Specify the key for an encrypted database. This routine should be ** called right after sqlite3_open(). ** ** The code to implement this API is not available in the public release ** of SQLite. */ SQLITE_API int SQLITE_STDCALL sqlite3_key( sqlite3 *db, /* Database to be rekeyed */ const void *pKey, int nKey /* The key */ ); SQLITE_API int SQLITE_STDCALL sqlite3_key_v2( sqlite3 *db, /* Database to be rekeyed */ const char *zDbName, /* Name of the database */ const void *pKey, int nKey /* The key */ ); /* ** Change the key on an open database. If the current database is not ** encrypted, this routine will encrypt it. If pNew==0 or nNew==0, the ** database is decrypted. ** ** The code to implement this API is not available in the public release ** of SQLite. */ SQLITE_API int SQLITE_STDCALL sqlite3_rekey( sqlite3 *db, /* Database to be rekeyed */ const void *pKey, int nKey /* The new key */ ); SQLITE_API int SQLITE_STDCALL sqlite3_rekey_v2( sqlite3 *db, /* Database to be rekeyed */ const char *zDbName, /* Name of the database */ const void *pKey, int nKey /* The new key */ ); /* ** Specify the activation key for a SEE database. Unless ** activated, none of the SEE routines will work. */ SQLITE_API void SQLITE_STDCALL sqlite3_activate_see( const char *zPassPhrase /* Activation phrase */ ); #endif #ifdef SQLITE_ENABLE_CEROD /* ** Specify the activation key for a CEROD database. Unless ** activated, none of the CEROD routines will work. */ SQLITE_API void SQLITE_STDCALL sqlite3_activate_cerod( const char *zPassPhrase /* Activation phrase */ ); #endif /* ** CAPI3REF: Suspend Execution For A Short Time ** |
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4763 4764 4765 4766 4767 4768 4769 | ** ** ^SQLite implements this interface by calling the xSleep() ** method of the default [sqlite3_vfs] object. If the xSleep() method ** of the default VFS is not implemented correctly, or not implemented at ** all, then the behavior of sqlite3_sleep() may deviate from the description ** in the previous paragraphs. */ | | | 4794 4795 4796 4797 4798 4799 4800 4801 4802 4803 4804 4805 4806 4807 4808 | ** ** ^SQLite implements this interface by calling the xSleep() ** method of the default [sqlite3_vfs] object. If the xSleep() method ** of the default VFS is not implemented correctly, or not implemented at ** all, then the behavior of sqlite3_sleep() may deviate from the description ** in the previous paragraphs. */ SQLITE_API int SQLITE_STDCALL sqlite3_sleep(int); /* ** CAPI3REF: Name Of The Folder Holding Temporary Files ** ** ^(If this global variable is made to point to a string which is ** the name of a folder (a.k.a. directory), then all temporary files ** created by SQLite when using a built-in [sqlite3_vfs | VFS] |
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4881 4882 4883 4884 4885 4886 4887 | ** find out whether SQLite automatically rolled back the transaction after ** an error is to use this function. ** ** If another thread changes the autocommit status of the database ** connection while this routine is running, then the return value ** is undefined. */ | | | | | | | 4912 4913 4914 4915 4916 4917 4918 4919 4920 4921 4922 4923 4924 4925 4926 4927 4928 4929 4930 4931 4932 4933 4934 4935 4936 4937 4938 4939 4940 4941 4942 4943 4944 4945 4946 4947 4948 4949 4950 4951 4952 4953 4954 4955 4956 4957 4958 4959 4960 4961 4962 4963 4964 4965 4966 4967 4968 4969 4970 4971 4972 4973 4974 4975 4976 4977 4978 | ** find out whether SQLite automatically rolled back the transaction after ** an error is to use this function. ** ** If another thread changes the autocommit status of the database ** connection while this routine is running, then the return value ** is undefined. */ SQLITE_API int SQLITE_STDCALL sqlite3_get_autocommit(sqlite3*); /* ** CAPI3REF: Find The Database Handle Of A Prepared Statement ** ** ^The sqlite3_db_handle interface returns the [database connection] handle ** to which a [prepared statement] belongs. ^The [database connection] ** returned by sqlite3_db_handle is the same [database connection] ** that was the first argument ** to the [sqlite3_prepare_v2()] call (or its variants) that was used to ** create the statement in the first place. */ SQLITE_API sqlite3 *SQLITE_STDCALL sqlite3_db_handle(sqlite3_stmt*); /* ** CAPI3REF: Return The Filename For A Database Connection ** ** ^The sqlite3_db_filename(D,N) interface returns a pointer to a filename ** associated with database N of connection D. ^The main database file ** has the name "main". If there is no attached database N on the database ** connection D, or if database N is a temporary or in-memory database, then ** a NULL pointer is returned. ** ** ^The filename returned by this function is the output of the ** xFullPathname method of the [VFS]. ^In other words, the filename ** will be an absolute pathname, even if the filename used ** to open the database originally was a URI or relative pathname. */ SQLITE_API const char *SQLITE_STDCALL sqlite3_db_filename(sqlite3 *db, const char *zDbName); /* ** CAPI3REF: Determine if a database is read-only ** ** ^The sqlite3_db_readonly(D,N) interface returns 1 if the database N ** of connection D is read-only, 0 if it is read/write, or -1 if N is not ** the name of a database on connection D. */ SQLITE_API int SQLITE_STDCALL sqlite3_db_readonly(sqlite3 *db, const char *zDbName); /* ** CAPI3REF: Find the next prepared statement ** ** ^This interface returns a pointer to the next [prepared statement] after ** pStmt associated with the [database connection] pDb. ^If pStmt is NULL ** then this interface returns a pointer to the first prepared statement ** associated with the database connection pDb. ^If no prepared statement ** satisfies the conditions of this routine, it returns NULL. ** ** The [database connection] pointer D in a call to ** [sqlite3_next_stmt(D,S)] must refer to an open database ** connection and in particular must not be a NULL pointer. */ SQLITE_API sqlite3_stmt *SQLITE_STDCALL sqlite3_next_stmt(sqlite3 *pDb, sqlite3_stmt *pStmt); /* ** CAPI3REF: Commit And Rollback Notification Callbacks ** ** ^The sqlite3_commit_hook() interface registers a callback ** function to be invoked whenever a transaction is [COMMIT | committed]. ** ^Any callback set by a previous call to sqlite3_commit_hook() |
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4981 4982 4983 4984 4985 4986 4987 | ** rolled back if an explicit "ROLLBACK" statement is executed, or ** an error or constraint causes an implicit rollback to occur. ** ^The rollback callback is not invoked if a transaction is ** automatically rolled back because the database connection is closed. ** ** See also the [sqlite3_update_hook()] interface. */ | | | | 5012 5013 5014 5015 5016 5017 5018 5019 5020 5021 5022 5023 5024 5025 5026 5027 | ** rolled back if an explicit "ROLLBACK" statement is executed, or ** an error or constraint causes an implicit rollback to occur. ** ^The rollback callback is not invoked if a transaction is ** automatically rolled back because the database connection is closed. ** ** See also the [sqlite3_update_hook()] interface. */ SQLITE_API void *SQLITE_STDCALL sqlite3_commit_hook(sqlite3*, int(*)(void*), void*); SQLITE_API void *SQLITE_STDCALL sqlite3_rollback_hook(sqlite3*, void(*)(void *), void*); /* ** CAPI3REF: Data Change Notification Callbacks ** ** ^The sqlite3_update_hook() interface registers a callback function ** with the [database connection] identified by the first argument ** to be invoked whenever a row is updated, inserted or deleted in |
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5032 5033 5034 5035 5036 5037 5038 | ** returns the P argument from the previous call ** on the same [database connection] D, or NULL for ** the first call on D. ** ** See also the [sqlite3_commit_hook()] and [sqlite3_rollback_hook()] ** interfaces. */ | | | 5063 5064 5065 5066 5067 5068 5069 5070 5071 5072 5073 5074 5075 5076 5077 | ** returns the P argument from the previous call ** on the same [database connection] D, or NULL for ** the first call on D. ** ** See also the [sqlite3_commit_hook()] and [sqlite3_rollback_hook()] ** interfaces. */ SQLITE_API void *SQLITE_STDCALL sqlite3_update_hook( sqlite3*, void(*)(void *,int ,char const *,char const *,sqlite3_int64), void* ); /* ** CAPI3REF: Enable Or Disable Shared Pager Cache |
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5061 5062 5063 5064 5065 5066 5067 5068 5069 5070 5071 5072 5073 | ** ** ^(This routine returns [SQLITE_OK] if shared cache was enabled or disabled ** successfully. An [error code] is returned otherwise.)^ ** ** ^Shared cache is disabled by default. But this might change in ** future releases of SQLite. Applications that care about shared ** cache setting should set it explicitly. ** ** This interface is threadsafe on processors where writing a ** 32-bit integer is atomic. ** ** See Also: [SQLite Shared-Cache Mode] */ | > > > > > | | | | 5092 5093 5094 5095 5096 5097 5098 5099 5100 5101 5102 5103 5104 5105 5106 5107 5108 5109 5110 5111 5112 5113 5114 5115 5116 5117 5118 5119 5120 5121 5122 5123 5124 5125 5126 5127 5128 5129 5130 5131 5132 5133 5134 5135 5136 5137 5138 5139 5140 5141 5142 5143 5144 5145 5146 | ** ** ^(This routine returns [SQLITE_OK] if shared cache was enabled or disabled ** successfully. An [error code] is returned otherwise.)^ ** ** ^Shared cache is disabled by default. But this might change in ** future releases of SQLite. Applications that care about shared ** cache setting should set it explicitly. ** ** Note: This method is disabled on MacOS X 10.7 and iOS version 5.0 ** and will always return SQLITE_MISUSE. On those systems, ** shared cache mode should be enabled per-database connection via ** [sqlite3_open_v2()] with [SQLITE_OPEN_SHAREDCACHE]. ** ** This interface is threadsafe on processors where writing a ** 32-bit integer is atomic. ** ** See Also: [SQLite Shared-Cache Mode] */ SQLITE_API int SQLITE_STDCALL sqlite3_enable_shared_cache(int); /* ** CAPI3REF: Attempt To Free Heap Memory ** ** ^The sqlite3_release_memory() interface attempts to free N bytes ** of heap memory by deallocating non-essential memory allocations ** held by the database library. Memory used to cache database ** pages to improve performance is an example of non-essential memory. ** ^sqlite3_release_memory() returns the number of bytes actually freed, ** which might be more or less than the amount requested. ** ^The sqlite3_release_memory() routine is a no-op returning zero ** if SQLite is not compiled with [SQLITE_ENABLE_MEMORY_MANAGEMENT]. ** ** See also: [sqlite3_db_release_memory()] */ SQLITE_API int SQLITE_STDCALL sqlite3_release_memory(int); /* ** CAPI3REF: Free Memory Used By A Database Connection ** ** ^The sqlite3_db_release_memory(D) interface attempts to free as much heap ** memory as possible from database connection D. Unlike the ** [sqlite3_release_memory()] interface, this interface is in effect even ** when the [SQLITE_ENABLE_MEMORY_MANAGEMENT] compile-time option is ** omitted. ** ** See also: [sqlite3_release_memory()] */ SQLITE_API int SQLITE_STDCALL sqlite3_db_release_memory(sqlite3*); /* ** CAPI3REF: Impose A Limit On Heap Size ** ** ^The sqlite3_soft_heap_limit64() interface sets and/or queries the ** soft limit on the amount of heap memory that may be allocated by SQLite. ** ^SQLite strives to keep heap memory utilization below the soft heap |
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5148 5149 5150 5151 5152 5153 5154 | ** the page cache is the predominate memory user in SQLite, most ** applications will achieve adequate soft heap limit enforcement without ** the use of [SQLITE_ENABLE_MEMORY_MANAGEMENT]. ** ** The circumstances under which SQLite will enforce the soft heap limit may ** changes in future releases of SQLite. */ | | | | 5184 5185 5186 5187 5188 5189 5190 5191 5192 5193 5194 5195 5196 5197 5198 5199 5200 5201 5202 5203 5204 5205 5206 5207 5208 5209 | ** the page cache is the predominate memory user in SQLite, most ** applications will achieve adequate soft heap limit enforcement without ** the use of [SQLITE_ENABLE_MEMORY_MANAGEMENT]. ** ** The circumstances under which SQLite will enforce the soft heap limit may ** changes in future releases of SQLite. */ SQLITE_API sqlite3_int64 SQLITE_STDCALL sqlite3_soft_heap_limit64(sqlite3_int64 N); /* ** CAPI3REF: Deprecated Soft Heap Limit Interface ** DEPRECATED ** ** This is a deprecated version of the [sqlite3_soft_heap_limit64()] ** interface. This routine is provided for historical compatibility ** only. All new applications should use the ** [sqlite3_soft_heap_limit64()] interface rather than this one. */ SQLITE_API SQLITE_DEPRECATED void SQLITE_STDCALL sqlite3_soft_heap_limit(int N); /* ** CAPI3REF: Extract Metadata About A Column Of A Table ** ** ^(The sqlite3_table_column_metadata(X,D,T,C,....) routine returns ** information about column C of table T in database D |
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5228 5229 5230 5231 5232 5233 5234 | ** auto increment: 0 ** </pre>)^ ** ** ^This function causes all database schemas to be read from disk and ** parsed, if that has not already been done, and returns an error if ** any errors are encountered while loading the schema. */ | | | 5264 5265 5266 5267 5268 5269 5270 5271 5272 5273 5274 5275 5276 5277 5278 | ** auto increment: 0 ** </pre>)^ ** ** ^This function causes all database schemas to be read from disk and ** parsed, if that has not already been done, and returns an error if ** any errors are encountered while loading the schema. */ SQLITE_API int SQLITE_STDCALL sqlite3_table_column_metadata( sqlite3 *db, /* Connection handle */ const char *zDbName, /* Database name or NULL */ const char *zTableName, /* Table name */ const char *zColumnName, /* Column name */ char const **pzDataType, /* OUTPUT: Declared data type */ char const **pzCollSeq, /* OUTPUT: Collation sequence name */ int *pNotNull, /* OUTPUT: True if NOT NULL constraint exists */ |
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5274 5275 5276 5277 5278 5279 5280 | ** ** ^Extension loading must be enabled using ** [sqlite3_enable_load_extension()] prior to calling this API, ** otherwise an error will be returned. ** ** See also the [load_extension() SQL function]. */ | | | | 5310 5311 5312 5313 5314 5315 5316 5317 5318 5319 5320 5321 5322 5323 5324 5325 5326 5327 5328 5329 5330 5331 5332 5333 5334 5335 5336 5337 5338 5339 5340 5341 5342 5343 5344 | ** ** ^Extension loading must be enabled using ** [sqlite3_enable_load_extension()] prior to calling this API, ** otherwise an error will be returned. ** ** See also the [load_extension() SQL function]. */ SQLITE_API int SQLITE_STDCALL sqlite3_load_extension( sqlite3 *db, /* Load the extension into this database connection */ const char *zFile, /* Name of the shared library containing extension */ const char *zProc, /* Entry point. Derived from zFile if 0 */ char **pzErrMsg /* Put error message here if not 0 */ ); /* ** CAPI3REF: Enable Or Disable Extension Loading ** ** ^So as not to open security holes in older applications that are ** unprepared to deal with [extension loading], and as a means of disabling ** [extension loading] while evaluating user-entered SQL, the following API ** is provided to turn the [sqlite3_load_extension()] mechanism on and off. ** ** ^Extension loading is off by default. ** ^Call the sqlite3_enable_load_extension() routine with onoff==1 ** to turn extension loading on and call it with onoff==0 to turn ** it back off again. */ SQLITE_API int SQLITE_STDCALL sqlite3_enable_load_extension(sqlite3 *db, int onoff); /* ** CAPI3REF: Automatically Load Statically Linked Extensions ** ** ^This interface causes the xEntryPoint() function to be invoked for ** each new [database connection] that is created. The idea here is that ** xEntryPoint() is the entry point for a statically linked [SQLite extension] |
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5332 5333 5334 5335 5336 5337 5338 | ** ^Calling sqlite3_auto_extension(X) with an entry point X that is already ** on the list of automatic extensions is a harmless no-op. ^No entry point ** will be called more than once for each database connection that is opened. ** ** See also: [sqlite3_reset_auto_extension()] ** and [sqlite3_cancel_auto_extension()] */ | | | | | 5368 5369 5370 5371 5372 5373 5374 5375 5376 5377 5378 5379 5380 5381 5382 5383 5384 5385 5386 5387 5388 5389 5390 5391 5392 5393 5394 5395 5396 5397 5398 5399 5400 5401 5402 | ** ^Calling sqlite3_auto_extension(X) with an entry point X that is already ** on the list of automatic extensions is a harmless no-op. ^No entry point ** will be called more than once for each database connection that is opened. ** ** See also: [sqlite3_reset_auto_extension()] ** and [sqlite3_cancel_auto_extension()] */ SQLITE_API int SQLITE_STDCALL sqlite3_auto_extension(void (*xEntryPoint)(void)); /* ** CAPI3REF: Cancel Automatic Extension Loading ** ** ^The [sqlite3_cancel_auto_extension(X)] interface unregisters the ** initialization routine X that was registered using a prior call to ** [sqlite3_auto_extension(X)]. ^The [sqlite3_cancel_auto_extension(X)] ** routine returns 1 if initialization routine X was successfully ** unregistered and it returns 0 if X was not on the list of initialization ** routines. */ SQLITE_API int SQLITE_STDCALL sqlite3_cancel_auto_extension(void (*xEntryPoint)(void)); /* ** CAPI3REF: Reset Automatic Extension Loading ** ** ^This interface disables all automatic extensions previously ** registered using [sqlite3_auto_extension()]. */ SQLITE_API void SQLITE_STDCALL sqlite3_reset_auto_extension(void); /* ** The interface to the virtual-table mechanism is currently considered ** to be experimental. The interface might change in incompatible ways. ** If this is a problem for you, do not use the interface at this time. ** ** When the virtual-table mechanism stabilizes, we will declare the |
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5555 5556 5557 5558 5559 5560 5561 | ** invoke the destructor function (if it is not NULL) when SQLite ** no longer needs the pClientData pointer. ^The destructor will also ** be invoked if the call to sqlite3_create_module_v2() fails. ** ^The sqlite3_create_module() ** interface is equivalent to sqlite3_create_module_v2() with a NULL ** destructor. */ | | | | 5591 5592 5593 5594 5595 5596 5597 5598 5599 5600 5601 5602 5603 5604 5605 5606 5607 5608 5609 5610 5611 | ** invoke the destructor function (if it is not NULL) when SQLite ** no longer needs the pClientData pointer. ^The destructor will also ** be invoked if the call to sqlite3_create_module_v2() fails. ** ^The sqlite3_create_module() ** interface is equivalent to sqlite3_create_module_v2() with a NULL ** destructor. */ SQLITE_API int SQLITE_STDCALL sqlite3_create_module( sqlite3 *db, /* SQLite connection to register module with */ const char *zName, /* Name of the module */ const sqlite3_module *p, /* Methods for the module */ void *pClientData /* Client data for xCreate/xConnect */ ); SQLITE_API int SQLITE_STDCALL sqlite3_create_module_v2( sqlite3 *db, /* SQLite connection to register module with */ const char *zName, /* Name of the module */ const sqlite3_module *p, /* Methods for the module */ void *pClientData, /* Client data for xCreate/xConnect */ void(*xDestroy)(void*) /* Module destructor function */ ); |
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5589 5590 5591 5592 5593 5594 5595 | ** take care that any prior string is freed by a call to [sqlite3_free()] ** prior to assigning a new string to zErrMsg. ^After the error message ** is delivered up to the client application, the string will be automatically ** freed by sqlite3_free() and the zErrMsg field will be zeroed. */ struct sqlite3_vtab { const sqlite3_module *pModule; /* The module for this virtual table */ | | | 5625 5626 5627 5628 5629 5630 5631 5632 5633 5634 5635 5636 5637 5638 5639 | ** take care that any prior string is freed by a call to [sqlite3_free()] ** prior to assigning a new string to zErrMsg. ^After the error message ** is delivered up to the client application, the string will be automatically ** freed by sqlite3_free() and the zErrMsg field will be zeroed. */ struct sqlite3_vtab { const sqlite3_module *pModule; /* The module for this virtual table */ int nRef; /* Number of open cursors */ char *zErrMsg; /* Error message from sqlite3_mprintf() */ /* Virtual table implementations will typically add additional fields */ }; /* ** CAPI3REF: Virtual Table Cursor Object ** KEYWORDS: sqlite3_vtab_cursor {virtual table cursor} |
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5624 5625 5626 5627 5628 5629 5630 | ** CAPI3REF: Declare The Schema Of A Virtual Table ** ** ^The [xCreate] and [xConnect] methods of a ** [virtual table module] call this interface ** to declare the format (the names and datatypes of the columns) of ** the virtual tables they implement. */ | | | | 5660 5661 5662 5663 5664 5665 5666 5667 5668 5669 5670 5671 5672 5673 5674 5675 5676 5677 5678 5679 5680 5681 5682 5683 5684 5685 5686 5687 5688 5689 5690 5691 5692 | ** CAPI3REF: Declare The Schema Of A Virtual Table ** ** ^The [xCreate] and [xConnect] methods of a ** [virtual table module] call this interface ** to declare the format (the names and datatypes of the columns) of ** the virtual tables they implement. */ SQLITE_API int SQLITE_STDCALL sqlite3_declare_vtab(sqlite3*, const char *zSQL); /* ** CAPI3REF: Overload A Function For A Virtual Table ** ** ^(Virtual tables can provide alternative implementations of functions ** using the [xFindFunction] method of the [virtual table module]. ** But global versions of those functions ** must exist in order to be overloaded.)^ ** ** ^(This API makes sure a global version of a function with a particular ** name and number of parameters exists. If no such function exists ** before this API is called, a new function is created.)^ ^The implementation ** of the new function always causes an exception to be thrown. So ** the new function is not good for anything by itself. Its only ** purpose is to be a placeholder function that can be overloaded ** by a [virtual table]. */ SQLITE_API int SQLITE_STDCALL sqlite3_overload_function(sqlite3*, const char *zFuncName, int nArg); /* ** The interface to the virtual-table mechanism defined above (back up ** to a comment remarkably similar to this one) is currently considered ** to be experimental. The interface might change in incompatible ways. ** If this is a problem for you, do not use the interface at this time. ** |
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5739 5740 5741 5742 5743 5744 5745 | ** ^The [sqlite3_bind_zeroblob()] and [sqlite3_result_zeroblob()] interfaces ** and the built-in [zeroblob] SQL function may be used to create a ** zero-filled blob to read or write using the incremental-blob interface. ** ** To avoid a resource leak, every open [BLOB handle] should eventually ** be released by a call to [sqlite3_blob_close()]. */ | | | 5775 5776 5777 5778 5779 5780 5781 5782 5783 5784 5785 5786 5787 5788 5789 | ** ^The [sqlite3_bind_zeroblob()] and [sqlite3_result_zeroblob()] interfaces ** and the built-in [zeroblob] SQL function may be used to create a ** zero-filled blob to read or write using the incremental-blob interface. ** ** To avoid a resource leak, every open [BLOB handle] should eventually ** be released by a call to [sqlite3_blob_close()]. */ SQLITE_API int SQLITE_STDCALL sqlite3_blob_open( sqlite3*, const char *zDb, const char *zTable, const char *zColumn, sqlite3_int64 iRow, int flags, sqlite3_blob **ppBlob |
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5771 5772 5773 5774 5775 5776 5777 | ** ^All subsequent calls to [sqlite3_blob_read()], [sqlite3_blob_write()] or ** [sqlite3_blob_reopen()] on an aborted blob handle immediately return ** SQLITE_ABORT. ^Calling [sqlite3_blob_bytes()] on an aborted blob handle ** always returns zero. ** ** ^This function sets the database handle error code and message. */ | | | 5807 5808 5809 5810 5811 5812 5813 5814 5815 5816 5817 5818 5819 5820 5821 | ** ^All subsequent calls to [sqlite3_blob_read()], [sqlite3_blob_write()] or ** [sqlite3_blob_reopen()] on an aborted blob handle immediately return ** SQLITE_ABORT. ^Calling [sqlite3_blob_bytes()] on an aborted blob handle ** always returns zero. ** ** ^This function sets the database handle error code and message. */ SQLITE_API SQLITE_EXPERIMENTAL int SQLITE_STDCALL sqlite3_blob_reopen(sqlite3_blob *, sqlite3_int64); /* ** CAPI3REF: Close A BLOB Handle ** ** ^This function closes an open [BLOB handle]. ^(The BLOB handle is closed ** unconditionally. Even if this routine returns an error code, the ** handle is still closed.)^ |
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5793 5794 5795 5796 5797 5798 5799 | ** Calling this function with an argument that is not a NULL pointer or an ** open blob handle results in undefined behaviour. ^Calling this routine ** with a null pointer (such as would be returned by a failed call to ** [sqlite3_blob_open()]) is a harmless no-op. ^Otherwise, if this function ** is passed a valid open blob handle, the values returned by the ** sqlite3_errcode() and sqlite3_errmsg() functions are set before returning. */ | | | | 5829 5830 5831 5832 5833 5834 5835 5836 5837 5838 5839 5840 5841 5842 5843 5844 5845 5846 5847 5848 5849 5850 5851 5852 5853 5854 5855 5856 5857 5858 | ** Calling this function with an argument that is not a NULL pointer or an ** open blob handle results in undefined behaviour. ^Calling this routine ** with a null pointer (such as would be returned by a failed call to ** [sqlite3_blob_open()]) is a harmless no-op. ^Otherwise, if this function ** is passed a valid open blob handle, the values returned by the ** sqlite3_errcode() and sqlite3_errmsg() functions are set before returning. */ SQLITE_API int SQLITE_STDCALL sqlite3_blob_close(sqlite3_blob *); /* ** CAPI3REF: Return The Size Of An Open BLOB ** ** ^Returns the size in bytes of the BLOB accessible via the ** successfully opened [BLOB handle] in its only argument. ^The ** incremental blob I/O routines can only read or overwriting existing ** blob content; they cannot change the size of a blob. ** ** This routine only works on a [BLOB handle] which has been created ** by a prior successful call to [sqlite3_blob_open()] and which has not ** been closed by [sqlite3_blob_close()]. Passing any other pointer in ** to this routine results in undefined and probably undesirable behavior. */ SQLITE_API int SQLITE_STDCALL sqlite3_blob_bytes(sqlite3_blob *); /* ** CAPI3REF: Read Data From A BLOB Incrementally ** ** ^(This function is used to read data from an open [BLOB handle] into a ** caller-supplied buffer. N bytes of data are copied into buffer Z ** from the open BLOB, starting at offset iOffset.)^ |
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5836 5837 5838 5839 5840 5841 5842 | ** This routine only works on a [BLOB handle] which has been created ** by a prior successful call to [sqlite3_blob_open()] and which has not ** been closed by [sqlite3_blob_close()]. Passing any other pointer in ** to this routine results in undefined and probably undesirable behavior. ** ** See also: [sqlite3_blob_write()]. */ | | | 5872 5873 5874 5875 5876 5877 5878 5879 5880 5881 5882 5883 5884 5885 5886 | ** This routine only works on a [BLOB handle] which has been created ** by a prior successful call to [sqlite3_blob_open()] and which has not ** been closed by [sqlite3_blob_close()]. Passing any other pointer in ** to this routine results in undefined and probably undesirable behavior. ** ** See also: [sqlite3_blob_write()]. */ SQLITE_API int SQLITE_STDCALL sqlite3_blob_read(sqlite3_blob *, void *Z, int N, int iOffset); /* ** CAPI3REF: Write Data Into A BLOB Incrementally ** ** ^(This function is used to write data into an open [BLOB handle] from a ** caller-supplied buffer. N bytes of data are copied from the buffer Z ** into the open BLOB, starting at offset iOffset.)^ |
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5877 5878 5879 5880 5881 5882 5883 | ** This routine only works on a [BLOB handle] which has been created ** by a prior successful call to [sqlite3_blob_open()] and which has not ** been closed by [sqlite3_blob_close()]. Passing any other pointer in ** to this routine results in undefined and probably undesirable behavior. ** ** See also: [sqlite3_blob_read()]. */ | | | 5913 5914 5915 5916 5917 5918 5919 5920 5921 5922 5923 5924 5925 5926 5927 | ** This routine only works on a [BLOB handle] which has been created ** by a prior successful call to [sqlite3_blob_open()] and which has not ** been closed by [sqlite3_blob_close()]. Passing any other pointer in ** to this routine results in undefined and probably undesirable behavior. ** ** See also: [sqlite3_blob_read()]. */ SQLITE_API int SQLITE_STDCALL sqlite3_blob_write(sqlite3_blob *, const void *z, int n, int iOffset); /* ** CAPI3REF: Virtual File System Objects ** ** A virtual filesystem (VFS) is an [sqlite3_vfs] object ** that SQLite uses to interact ** with the underlying operating system. Most SQLite builds come with a |
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5908 5909 5910 5911 5912 5913 5914 | ** VFS is registered with a name that is NULL or an empty string, ** then the behavior is undefined. ** ** ^Unregister a VFS with the sqlite3_vfs_unregister() interface. ** ^(If the default VFS is unregistered, another VFS is chosen as ** the default. The choice for the new VFS is arbitrary.)^ */ | | | | | 5944 5945 5946 5947 5948 5949 5950 5951 5952 5953 5954 5955 5956 5957 5958 5959 5960 | ** VFS is registered with a name that is NULL or an empty string, ** then the behavior is undefined. ** ** ^Unregister a VFS with the sqlite3_vfs_unregister() interface. ** ^(If the default VFS is unregistered, another VFS is chosen as ** the default. The choice for the new VFS is arbitrary.)^ */ SQLITE_API sqlite3_vfs *SQLITE_STDCALL sqlite3_vfs_find(const char *zVfsName); SQLITE_API int SQLITE_STDCALL sqlite3_vfs_register(sqlite3_vfs*, int makeDflt); SQLITE_API int SQLITE_STDCALL sqlite3_vfs_unregister(sqlite3_vfs*); /* ** CAPI3REF: Mutexes ** ** The SQLite core uses these routines for thread ** synchronization. Though they are intended for internal ** use by SQLite, code that links against SQLite is |
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6023 6024 6025 6026 6027 6028 6029 | ** ** ^If the argument to sqlite3_mutex_enter(), sqlite3_mutex_try(), or ** sqlite3_mutex_leave() is a NULL pointer, then all three routines ** behave as no-ops. ** ** See also: [sqlite3_mutex_held()] and [sqlite3_mutex_notheld()]. */ | | | | | | | 6059 6060 6061 6062 6063 6064 6065 6066 6067 6068 6069 6070 6071 6072 6073 6074 6075 6076 6077 | ** ** ^If the argument to sqlite3_mutex_enter(), sqlite3_mutex_try(), or ** sqlite3_mutex_leave() is a NULL pointer, then all three routines ** behave as no-ops. ** ** See also: [sqlite3_mutex_held()] and [sqlite3_mutex_notheld()]. */ SQLITE_API sqlite3_mutex *SQLITE_STDCALL sqlite3_mutex_alloc(int); SQLITE_API void SQLITE_STDCALL sqlite3_mutex_free(sqlite3_mutex*); SQLITE_API void SQLITE_STDCALL sqlite3_mutex_enter(sqlite3_mutex*); SQLITE_API int SQLITE_STDCALL sqlite3_mutex_try(sqlite3_mutex*); SQLITE_API void SQLITE_STDCALL sqlite3_mutex_leave(sqlite3_mutex*); /* ** CAPI3REF: Mutex Methods Object ** ** An instance of this structure defines the low-level routines ** used to allocate and use mutexes. ** |
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6137 6138 6139 6140 6141 6142 6143 | ** the reason the mutex does not exist is because the build is not ** using mutexes. And we do not want the assert() containing the ** call to sqlite3_mutex_held() to fail, so a non-zero return is ** the appropriate thing to do. The sqlite3_mutex_notheld() ** interface should also return 1 when given a NULL pointer. */ #ifndef NDEBUG | | | | 6173 6174 6175 6176 6177 6178 6179 6180 6181 6182 6183 6184 6185 6186 6187 6188 | ** the reason the mutex does not exist is because the build is not ** using mutexes. And we do not want the assert() containing the ** call to sqlite3_mutex_held() to fail, so a non-zero return is ** the appropriate thing to do. The sqlite3_mutex_notheld() ** interface should also return 1 when given a NULL pointer. */ #ifndef NDEBUG SQLITE_API int SQLITE_STDCALL sqlite3_mutex_held(sqlite3_mutex*); SQLITE_API int SQLITE_STDCALL sqlite3_mutex_notheld(sqlite3_mutex*); #endif /* ** CAPI3REF: Mutex Types ** ** The [sqlite3_mutex_alloc()] interface takes a single argument ** which is one of these integer constants. |
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6174 6175 6176 6177 6178 6179 6180 | ** ** ^This interface returns a pointer the [sqlite3_mutex] object that ** serializes access to the [database connection] given in the argument ** when the [threading mode] is Serialized. ** ^If the [threading mode] is Single-thread or Multi-thread then this ** routine returns a NULL pointer. */ | | | 6210 6211 6212 6213 6214 6215 6216 6217 6218 6219 6220 6221 6222 6223 6224 | ** ** ^This interface returns a pointer the [sqlite3_mutex] object that ** serializes access to the [database connection] given in the argument ** when the [threading mode] is Serialized. ** ^If the [threading mode] is Single-thread or Multi-thread then this ** routine returns a NULL pointer. */ SQLITE_API sqlite3_mutex *SQLITE_STDCALL sqlite3_db_mutex(sqlite3*); /* ** CAPI3REF: Low-Level Control Of Database Files ** ** ^The [sqlite3_file_control()] interface makes a direct call to the ** xFileControl method for the [sqlite3_io_methods] object associated ** with a particular database identified by the second argument. ^The |
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6208 6209 6210 6211 6212 6213 6214 | ** or [sqlite3_errmsg()]. The underlying xFileControl method might ** also return SQLITE_ERROR. There is no way to distinguish between ** an incorrect zDbName and an SQLITE_ERROR return from the underlying ** xFileControl method. ** ** See also: [SQLITE_FCNTL_LOCKSTATE] */ | | | | 6244 6245 6246 6247 6248 6249 6250 6251 6252 6253 6254 6255 6256 6257 6258 6259 6260 6261 6262 6263 6264 6265 6266 6267 6268 6269 6270 6271 6272 6273 6274 6275 6276 6277 | ** or [sqlite3_errmsg()]. The underlying xFileControl method might ** also return SQLITE_ERROR. There is no way to distinguish between ** an incorrect zDbName and an SQLITE_ERROR return from the underlying ** xFileControl method. ** ** See also: [SQLITE_FCNTL_LOCKSTATE] */ SQLITE_API int SQLITE_STDCALL sqlite3_file_control(sqlite3*, const char *zDbName, int op, void*); /* ** CAPI3REF: Testing Interface ** ** ^The sqlite3_test_control() interface is used to read out internal ** state of SQLite and to inject faults into SQLite for testing ** purposes. ^The first parameter is an operation code that determines ** the number, meaning, and operation of all subsequent parameters. ** ** This interface is not for use by applications. It exists solely ** for verifying the correct operation of the SQLite library. Depending ** on how the SQLite library is compiled, this interface might not exist. ** ** The details of the operation codes, their meanings, the parameters ** they take, and what they do are all subject to change without notice. ** Unlike most of the SQLite API, this function is not guaranteed to ** operate consistently from one release to the next. */ SQLITE_API int SQLITE_CDECL sqlite3_test_control(int op, ...); /* ** CAPI3REF: Testing Interface Operation Codes ** ** These constants are the valid operation code parameters used ** as the first argument to [sqlite3_test_control()]. ** |
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6261 6262 6263 6264 6265 6266 6267 | #define SQLITE_TESTCTRL_LOCALTIME_FAULT 18 #define SQLITE_TESTCTRL_EXPLAIN_STMT 19 /* NOT USED */ #define SQLITE_TESTCTRL_NEVER_CORRUPT 20 #define SQLITE_TESTCTRL_VDBE_COVERAGE 21 #define SQLITE_TESTCTRL_BYTEORDER 22 #define SQLITE_TESTCTRL_ISINIT 23 #define SQLITE_TESTCTRL_SORTER_MMAP 24 | > | | | | < | | < < < > | > > > > > > | 6297 6298 6299 6300 6301 6302 6303 6304 6305 6306 6307 6308 6309 6310 6311 6312 6313 6314 6315 6316 6317 6318 6319 6320 6321 6322 6323 6324 6325 6326 6327 6328 6329 6330 6331 6332 6333 6334 6335 6336 6337 6338 6339 6340 6341 6342 6343 6344 6345 6346 | #define SQLITE_TESTCTRL_LOCALTIME_FAULT 18 #define SQLITE_TESTCTRL_EXPLAIN_STMT 19 /* NOT USED */ #define SQLITE_TESTCTRL_NEVER_CORRUPT 20 #define SQLITE_TESTCTRL_VDBE_COVERAGE 21 #define SQLITE_TESTCTRL_BYTEORDER 22 #define SQLITE_TESTCTRL_ISINIT 23 #define SQLITE_TESTCTRL_SORTER_MMAP 24 #define SQLITE_TESTCTRL_IMPOSTER 25 #define SQLITE_TESTCTRL_LAST 25 /* ** CAPI3REF: SQLite Runtime Status ** ** ^These interfaces are used to retrieve runtime status information ** about the performance of SQLite, and optionally to reset various ** highwater marks. ^The first argument is an integer code for ** the specific parameter to measure. ^(Recognized integer codes ** are of the form [status parameters | SQLITE_STATUS_...].)^ ** ^The current value of the parameter is returned into *pCurrent. ** ^The highest recorded value is returned in *pHighwater. ^If the ** resetFlag is true, then the highest record value is reset after ** *pHighwater is written. ^(Some parameters do not record the highest ** value. For those parameters ** nothing is written into *pHighwater and the resetFlag is ignored.)^ ** ^(Other parameters record only the highwater mark and not the current ** value. For these latter parameters nothing is written into *pCurrent.)^ ** ** ^The sqlite3_status() and sqlite3_status64() routines return ** SQLITE_OK on success and a non-zero [error code] on failure. ** ** If either the current value or the highwater mark is too large to ** be represented by a 32-bit integer, then the values returned by ** sqlite3_status() are undefined. ** ** See also: [sqlite3_db_status()] */ SQLITE_API int SQLITE_STDCALL sqlite3_status(int op, int *pCurrent, int *pHighwater, int resetFlag); SQLITE_API int SQLITE_STDCALL sqlite3_status64( int op, sqlite3_int64 *pCurrent, sqlite3_int64 *pHighwater, int resetFlag ); /* ** CAPI3REF: Status Parameters ** KEYWORDS: {status parameters} ** ** These integer constants designate various run-time status parameters |
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6410 6411 6412 6413 6414 6415 6416 | ** reset back down to the current value. ** ** ^The sqlite3_db_status() routine returns SQLITE_OK on success and a ** non-zero [error code] on failure. ** ** See also: [sqlite3_status()] and [sqlite3_stmt_status()]. */ | | | 6450 6451 6452 6453 6454 6455 6456 6457 6458 6459 6460 6461 6462 6463 6464 | ** reset back down to the current value. ** ** ^The sqlite3_db_status() routine returns SQLITE_OK on success and a ** non-zero [error code] on failure. ** ** See also: [sqlite3_status()] and [sqlite3_stmt_status()]. */ SQLITE_API int SQLITE_STDCALL sqlite3_db_status(sqlite3*, int op, int *pCur, int *pHiwtr, int resetFlg); /* ** CAPI3REF: Status Parameters for database connections ** KEYWORDS: {SQLITE_DBSTATUS options} ** ** These constants are the available integer "verbs" that can be passed as ** the second argument to the [sqlite3_db_status()] interface. |
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6539 6540 6541 6542 6543 6544 6545 | ** to be interrogated.)^ ** ^The current value of the requested counter is returned. ** ^If the resetFlg is true, then the counter is reset to zero after this ** interface call returns. ** ** See also: [sqlite3_status()] and [sqlite3_db_status()]. */ | | | 6579 6580 6581 6582 6583 6584 6585 6586 6587 6588 6589 6590 6591 6592 6593 | ** to be interrogated.)^ ** ^The current value of the requested counter is returned. ** ^If the resetFlg is true, then the counter is reset to zero after this ** interface call returns. ** ** See also: [sqlite3_status()] and [sqlite3_db_status()]. */ SQLITE_API int SQLITE_STDCALL sqlite3_stmt_status(sqlite3_stmt*, int op,int resetFlg); /* ** CAPI3REF: Status Parameters for prepared statements ** KEYWORDS: {SQLITE_STMTSTATUS counter} {SQLITE_STMTSTATUS counters} ** ** These preprocessor macros define integer codes that name counter ** values associated with the [sqlite3_stmt_status()] interface. |
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6962 6963 6964 6965 6966 6967 6968 | ** sqlite3_backup_step() call on the same [sqlite3_backup] object, then ** sqlite3_backup_finish() returns the corresponding [error code]. ** ** ^A return of [SQLITE_BUSY] or [SQLITE_LOCKED] from sqlite3_backup_step() ** is not a permanent error and does not affect the return value of ** sqlite3_backup_finish(). ** | | > | | | | < < | | < | > > | | 7002 7003 7004 7005 7006 7007 7008 7009 7010 7011 7012 7013 7014 7015 7016 7017 7018 7019 7020 7021 7022 7023 7024 7025 7026 7027 7028 7029 | ** sqlite3_backup_step() call on the same [sqlite3_backup] object, then ** sqlite3_backup_finish() returns the corresponding [error code]. ** ** ^A return of [SQLITE_BUSY] or [SQLITE_LOCKED] from sqlite3_backup_step() ** is not a permanent error and does not affect the return value of ** sqlite3_backup_finish(). ** ** [[sqlite3_backup_remaining()]] [[sqlite3_backup_pagecount()]] ** <b>sqlite3_backup_remaining() and sqlite3_backup_pagecount()</b> ** ** ^The sqlite3_backup_remaining() routine returns the number of pages still ** to be backed up at the conclusion of the most recent sqlite3_backup_step(). ** ^The sqlite3_backup_pagecount() routine returns the total number of pages ** in the source database at the conclusion of the most recent ** sqlite3_backup_step(). ** ^(The values returned by these functions are only updated by ** sqlite3_backup_step(). If the source database is modified in a way that ** changes the size of the source database or the number of pages remaining, ** those changes are not reflected in the output of sqlite3_backup_pagecount() ** and sqlite3_backup_remaining() until after the next ** sqlite3_backup_step().)^ ** ** <b>Concurrent Usage of Database Handles</b> ** ** ^The source [database connection] may be used by the application for other ** purposes while a backup operation is underway or being initialized. ** ^If SQLite is compiled and configured to support threadsafe database ** connections, then the source database connection may be used concurrently |
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7008 7009 7010 7011 7012 7013 7014 | ** The [sqlite3_backup] object itself is partially threadsafe. Multiple ** threads may safely make multiple concurrent calls to sqlite3_backup_step(). ** However, the sqlite3_backup_remaining() and sqlite3_backup_pagecount() ** APIs are not strictly speaking threadsafe. If they are invoked at the ** same time as another thread is invoking sqlite3_backup_step() it is ** possible that they return invalid values. */ | | | | | | | 7048 7049 7050 7051 7052 7053 7054 7055 7056 7057 7058 7059 7060 7061 7062 7063 7064 7065 7066 7067 7068 7069 7070 7071 | ** The [sqlite3_backup] object itself is partially threadsafe. Multiple ** threads may safely make multiple concurrent calls to sqlite3_backup_step(). ** However, the sqlite3_backup_remaining() and sqlite3_backup_pagecount() ** APIs are not strictly speaking threadsafe. If they are invoked at the ** same time as another thread is invoking sqlite3_backup_step() it is ** possible that they return invalid values. */ SQLITE_API sqlite3_backup *SQLITE_STDCALL sqlite3_backup_init( sqlite3 *pDest, /* Destination database handle */ const char *zDestName, /* Destination database name */ sqlite3 *pSource, /* Source database handle */ const char *zSourceName /* Source database name */ ); SQLITE_API int SQLITE_STDCALL sqlite3_backup_step(sqlite3_backup *p, int nPage); SQLITE_API int SQLITE_STDCALL sqlite3_backup_finish(sqlite3_backup *p); SQLITE_API int SQLITE_STDCALL sqlite3_backup_remaining(sqlite3_backup *p); SQLITE_API int SQLITE_STDCALL sqlite3_backup_pagecount(sqlite3_backup *p); /* ** CAPI3REF: Unlock Notification ** ** ^When running in shared-cache mode, a database operation may fail with ** an [SQLITE_LOCKED] error if the required locks on the shared-cache or ** individual tables within the shared-cache cannot be obtained. See |
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7133 7134 7135 7136 7137 7138 7139 | ** ** One way around this problem is to check the extended error code returned ** by an sqlite3_step() call. ^(If there is a blocking connection, then the ** extended error code is set to SQLITE_LOCKED_SHAREDCACHE. Otherwise, in ** the special "DROP TABLE/INDEX" case, the extended error code is just ** SQLITE_LOCKED.)^ */ | | | | | | 7173 7174 7175 7176 7177 7178 7179 7180 7181 7182 7183 7184 7185 7186 7187 7188 7189 7190 7191 7192 7193 7194 7195 7196 7197 7198 7199 7200 7201 7202 7203 7204 7205 7206 7207 7208 7209 7210 7211 7212 7213 7214 7215 7216 7217 7218 | ** ** One way around this problem is to check the extended error code returned ** by an sqlite3_step() call. ^(If there is a blocking connection, then the ** extended error code is set to SQLITE_LOCKED_SHAREDCACHE. Otherwise, in ** the special "DROP TABLE/INDEX" case, the extended error code is just ** SQLITE_LOCKED.)^ */ SQLITE_API int SQLITE_STDCALL sqlite3_unlock_notify( sqlite3 *pBlocked, /* Waiting connection */ void (*xNotify)(void **apArg, int nArg), /* Callback function to invoke */ void *pNotifyArg /* Argument to pass to xNotify */ ); /* ** CAPI3REF: String Comparison ** ** ^The [sqlite3_stricmp()] and [sqlite3_strnicmp()] APIs allow applications ** and extensions to compare the contents of two buffers containing UTF-8 ** strings in a case-independent fashion, using the same definition of "case ** independence" that SQLite uses internally when comparing identifiers. */ SQLITE_API int SQLITE_STDCALL sqlite3_stricmp(const char *, const char *); SQLITE_API int SQLITE_STDCALL sqlite3_strnicmp(const char *, const char *, int); /* ** CAPI3REF: String Globbing * ** ^The [sqlite3_strglob(P,X)] interface returns zero if string X matches ** the glob pattern P, and it returns non-zero if string X does not match ** the glob pattern P. ^The definition of glob pattern matching used in ** [sqlite3_strglob(P,X)] is the same as for the "X GLOB P" operator in the ** SQL dialect used by SQLite. ^The sqlite3_strglob(P,X) function is case ** sensitive. ** ** Note that this routine returns zero on a match and non-zero if the strings ** do not match, the same as [sqlite3_stricmp()] and [sqlite3_strnicmp()]. */ SQLITE_API int SQLITE_STDCALL sqlite3_strglob(const char *zGlob, const char *zStr); /* ** CAPI3REF: Error Logging Interface ** ** ^The [sqlite3_log()] interface writes a message into the [error log] ** established by the [SQLITE_CONFIG_LOG] option to [sqlite3_config()]. ** ^If logging is enabled, the zFormat string and subsequent arguments are |
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7187 7188 7189 7190 7191 7192 7193 | ** ** To avoid deadlocks and other threading problems, the sqlite3_log() routine ** will not use dynamically allocated memory. The log message is stored in ** a fixed-length buffer on the stack. If the log message is longer than ** a few hundred characters, it will be truncated to the length of the ** buffer. */ | | | 7227 7228 7229 7230 7231 7232 7233 7234 7235 7236 7237 7238 7239 7240 7241 | ** ** To avoid deadlocks and other threading problems, the sqlite3_log() routine ** will not use dynamically allocated memory. The log message is stored in ** a fixed-length buffer on the stack. If the log message is longer than ** a few hundred characters, it will be truncated to the length of the ** buffer. */ SQLITE_API void SQLITE_CDECL sqlite3_log(int iErrCode, const char *zFormat, ...); /* ** CAPI3REF: Write-Ahead Log Commit Hook ** ** ^The [sqlite3_wal_hook()] function is used to register a callback that ** is invoked each time data is committed to a database in wal mode. ** |
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7222 7223 7224 7225 7226 7227 7228 | ** A single database handle may have at most a single write-ahead log callback ** registered at one time. ^Calling [sqlite3_wal_hook()] replaces any ** previously registered write-ahead log callback. ^Note that the ** [sqlite3_wal_autocheckpoint()] interface and the ** [wal_autocheckpoint pragma] both invoke [sqlite3_wal_hook()] and will ** those overwrite any prior [sqlite3_wal_hook()] settings. */ | | | 7262 7263 7264 7265 7266 7267 7268 7269 7270 7271 7272 7273 7274 7275 7276 | ** A single database handle may have at most a single write-ahead log callback ** registered at one time. ^Calling [sqlite3_wal_hook()] replaces any ** previously registered write-ahead log callback. ^Note that the ** [sqlite3_wal_autocheckpoint()] interface and the ** [wal_autocheckpoint pragma] both invoke [sqlite3_wal_hook()] and will ** those overwrite any prior [sqlite3_wal_hook()] settings. */ SQLITE_API void *SQLITE_STDCALL sqlite3_wal_hook( sqlite3*, int(*)(void *,sqlite3*,const char*,int), void* ); /* ** CAPI3REF: Configure an auto-checkpoint |
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7256 7257 7258 7259 7260 7261 7262 | ** ** ^Every new [database connection] defaults to having the auto-checkpoint ** enabled with a threshold of 1000 or [SQLITE_DEFAULT_WAL_AUTOCHECKPOINT] ** pages. The use of this interface ** is only necessary if the default setting is found to be suboptimal ** for a particular application. */ | | | | 7296 7297 7298 7299 7300 7301 7302 7303 7304 7305 7306 7307 7308 7309 7310 7311 7312 7313 7314 7315 7316 7317 7318 7319 7320 7321 7322 7323 7324 7325 7326 7327 7328 7329 7330 7331 | ** ** ^Every new [database connection] defaults to having the auto-checkpoint ** enabled with a threshold of 1000 or [SQLITE_DEFAULT_WAL_AUTOCHECKPOINT] ** pages. The use of this interface ** is only necessary if the default setting is found to be suboptimal ** for a particular application. */ SQLITE_API int SQLITE_STDCALL sqlite3_wal_autocheckpoint(sqlite3 *db, int N); /* ** CAPI3REF: Checkpoint a database ** ** ^(The sqlite3_wal_checkpoint(D,X) is equivalent to ** [sqlite3_wal_checkpoint_v2](D,X,[SQLITE_CHECKPOINT_PASSIVE],0,0).)^ ** ** In brief, sqlite3_wal_checkpoint(D,X) causes the content in the ** [write-ahead log] for database X on [database connection] D to be ** transferred into the database file and for the write-ahead log to ** be reset. See the [checkpointing] documentation for addition ** information. ** ** This interface used to be the only way to cause a checkpoint to ** occur. But then the newer and more powerful [sqlite3_wal_checkpoint_v2()] ** interface was added. This interface is retained for backwards ** compatibility and as a convenience for applications that need to manually ** start a callback but which do not need the full power (and corresponding ** complication) of [sqlite3_wal_checkpoint_v2()]. */ SQLITE_API int SQLITE_STDCALL sqlite3_wal_checkpoint(sqlite3 *db, const char *zDb); /* ** CAPI3REF: Checkpoint a database ** ** ^(The sqlite3_wal_checkpoint_v2(D,X,M,L,C) interface runs a checkpoint ** operation on database X of [database connection] D in mode M. Status ** information is written back into integers pointed to by L and C.)^ |
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7370 7371 7372 7373 7374 7375 7376 | ** the sqlite3_wal_checkpoint_v2() interface ** sets the error information that is queried by ** [sqlite3_errcode()] and [sqlite3_errmsg()]. ** ** ^The [PRAGMA wal_checkpoint] command can be used to invoke this interface ** from SQL. */ | | | 7410 7411 7412 7413 7414 7415 7416 7417 7418 7419 7420 7421 7422 7423 7424 | ** the sqlite3_wal_checkpoint_v2() interface ** sets the error information that is queried by ** [sqlite3_errcode()] and [sqlite3_errmsg()]. ** ** ^The [PRAGMA wal_checkpoint] command can be used to invoke this interface ** from SQL. */ SQLITE_API int SQLITE_STDCALL sqlite3_wal_checkpoint_v2( sqlite3 *db, /* Database handle */ const char *zDb, /* Name of attached database (or NULL) */ int eMode, /* SQLITE_CHECKPOINT_* value */ int *pnLog, /* OUT: Size of WAL log in frames */ int *pnCkpt /* OUT: Total number of frames checkpointed */ ); |
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7406 7407 7408 7409 7410 7411 7412 | ** If this interface is invoked outside the context of an xConnect or ** xCreate virtual table method then the behavior is undefined. ** ** At present, there is only one option that may be configured using ** this function. (See [SQLITE_VTAB_CONSTRAINT_SUPPORT].) Further options ** may be added in the future. */ | | | 7446 7447 7448 7449 7450 7451 7452 7453 7454 7455 7456 7457 7458 7459 7460 | ** If this interface is invoked outside the context of an xConnect or ** xCreate virtual table method then the behavior is undefined. ** ** At present, there is only one option that may be configured using ** this function. (See [SQLITE_VTAB_CONSTRAINT_SUPPORT].) Further options ** may be added in the future. */ SQLITE_API int SQLITE_CDECL sqlite3_vtab_config(sqlite3*, int op, ...); /* ** CAPI3REF: Virtual Table Configuration Options ** ** These macros define the various options to the ** [sqlite3_vtab_config()] interface that [virtual table] implementations ** can use to customize and optimize their behavior. |
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7459 7460 7461 7462 7463 7464 7465 | ** This function may only be called from within a call to the [xUpdate] method ** of a [virtual table] implementation for an INSERT or UPDATE operation. ^The ** value returned is one of [SQLITE_ROLLBACK], [SQLITE_IGNORE], [SQLITE_FAIL], ** [SQLITE_ABORT], or [SQLITE_REPLACE], according to the [ON CONFLICT] mode ** of the SQL statement that triggered the call to the [xUpdate] method of the ** [virtual table]. */ | | | 7499 7500 7501 7502 7503 7504 7505 7506 7507 7508 7509 7510 7511 7512 7513 | ** This function may only be called from within a call to the [xUpdate] method ** of a [virtual table] implementation for an INSERT or UPDATE operation. ^The ** value returned is one of [SQLITE_ROLLBACK], [SQLITE_IGNORE], [SQLITE_FAIL], ** [SQLITE_ABORT], or [SQLITE_REPLACE], according to the [ON CONFLICT] mode ** of the SQL statement that triggered the call to the [xUpdate] method of the ** [virtual table]. */ SQLITE_API int SQLITE_STDCALL sqlite3_vtab_on_conflict(sqlite3 *); /* ** CAPI3REF: Conflict resolution modes ** KEYWORDS: {conflict resolution mode} ** ** These constants are returned by [sqlite3_vtab_on_conflict()] to ** inform a [virtual table] implementation what the [ON CONFLICT] mode |
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7563 7564 7565 7566 7567 7568 7569 | ** ^Statistics might not be available for all loops in all statements. ^In cases ** where there exist loops with no available statistics, this function behaves ** as if the loop did not exist - it returns non-zero and leave the variable ** that pOut points to unchanged. ** ** See also: [sqlite3_stmt_scanstatus_reset()] */ | | | | 7603 7604 7605 7606 7607 7608 7609 7610 7611 7612 7613 7614 7615 7616 7617 7618 7619 7620 7621 7622 7623 7624 7625 7626 7627 7628 7629 7630 7631 7632 | ** ^Statistics might not be available for all loops in all statements. ^In cases ** where there exist loops with no available statistics, this function behaves ** as if the loop did not exist - it returns non-zero and leave the variable ** that pOut points to unchanged. ** ** See also: [sqlite3_stmt_scanstatus_reset()] */ SQLITE_API SQLITE_EXPERIMENTAL int SQLITE_STDCALL sqlite3_stmt_scanstatus( sqlite3_stmt *pStmt, /* Prepared statement for which info desired */ int idx, /* Index of loop to report on */ int iScanStatusOp, /* Information desired. SQLITE_SCANSTAT_* */ void *pOut /* Result written here */ ); /* ** CAPI3REF: Zero Scan-Status Counters ** ** ^Zero all [sqlite3_stmt_scanstatus()] related event counters. ** ** This API is only available if the library is built with pre-processor ** symbol [SQLITE_ENABLE_STMT_SCANSTATUS] defined. */ SQLITE_API SQLITE_EXPERIMENTAL void SQLITE_STDCALL sqlite3_stmt_scanstatus_reset(sqlite3_stmt*); /* ** Undo the hack that converts floating point types to integer for ** builds on processors without floating point support. */ #ifdef SQLITE_OMIT_FLOATING_POINT |
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7633 7634 7635 7636 7637 7638 7639 | /* ** Register a geometry callback named zGeom that can be used as part of an ** R-Tree geometry query as follows: ** ** SELECT ... FROM <rtree> WHERE <rtree col> MATCH $zGeom(... params ...) */ | | | 7673 7674 7675 7676 7677 7678 7679 7680 7681 7682 7683 7684 7685 7686 7687 | /* ** Register a geometry callback named zGeom that can be used as part of an ** R-Tree geometry query as follows: ** ** SELECT ... FROM <rtree> WHERE <rtree col> MATCH $zGeom(... params ...) */ SQLITE_API int SQLITE_STDCALL sqlite3_rtree_geometry_callback( sqlite3 *db, const char *zGeom, int (*xGeom)(sqlite3_rtree_geometry*, int, sqlite3_rtree_dbl*,int*), void *pContext ); |
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7659 7660 7661 7662 7663 7664 7665 | /* ** Register a 2nd-generation geometry callback named zScore that can be ** used as part of an R-Tree geometry query as follows: ** ** SELECT ... FROM <rtree> WHERE <rtree col> MATCH $zQueryFunc(... params ...) */ | | | 7699 7700 7701 7702 7703 7704 7705 7706 7707 7708 7709 7710 7711 7712 7713 | /* ** Register a 2nd-generation geometry callback named zScore that can be ** used as part of an R-Tree geometry query as follows: ** ** SELECT ... FROM <rtree> WHERE <rtree col> MATCH $zQueryFunc(... params ...) */ SQLITE_API int SQLITE_STDCALL sqlite3_rtree_query_callback( sqlite3 *db, const char *zQueryFunc, int (*xQueryFunc)(sqlite3_rtree_query_info*), void *pContext, void (*xDestructor)(void*) ); |
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1 2 3 4 5 6 7 8 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title></title> </head> <body> ADO.NET SQLite Data Provider<br /> Version 1.0.97.0 - May XX, 2015 <font color="red">(release scheduled)</font><br /> | | | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <title></title> </head> <body> ADO.NET SQLite Data Provider<br /> Version 1.0.97.0 - May XX, 2015 <font color="red">(release scheduled)</font><br /> Using <a href="https://www.sqlite.org/draft/releaselog/3_8_9.html">SQLite 3.8.9</a><br /> Originally written by Robert Simpson<br /> Released to the public domain, use at your own risk!<br /> Official provider website: <a href="https://system.data.sqlite.org/">https://system.data.sqlite.org/</a><br /> Legacy versions: <a href="http://sqlite.phxsoftware.com/">http://sqlite.phxsoftware.com/</a><br /> <br /> The current development version can be downloaded from <a href="https://system.data.sqlite.org/index.html/timeline?y=ci"> https://system.data.sqlite.org/index.html/timeline?y=ci</a> |
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208 209 210 211 212 213 214 215 216 217 218 219 220 221 | <h2><b>Version History</b></h2> <p> <b>1.0.97.0 - May XX, 2015 <font color="red">(release scheduled)</font></b> </p> <ul> <li>Updated to <a href="https://www.nuget.org/packages/EntityFramework/6.1.3">Entity Framework 6.1.3</a>.</li> <li>Prevent the IDataReader.GetDataTypeName method from throwing "No current row" exceptions. Fix for [94252b9059].</li> <li>When BinaryGUID handling is off, transform the LINQ parameter types as well. Fix for [a4d9c7ee94]. <b>** Potentially Incompatible Change **</b></li> <li>The IDataReader.GetDataTypeName method should always return the declared type name. <b>** Potentially Incompatible Change **</b></li> </ul> <p> <b>1.0.96.0 - March 5, 2015</b> | > | 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 | <h2><b>Version History</b></h2> <p> <b>1.0.97.0 - May XX, 2015 <font color="red">(release scheduled)</font></b> </p> <ul> <li>Updated to <a href="https://www.sqlite.org/draft/releaselog/3_8_9.html">SQLite 3.8.9</a>.</li> <li>Updated to <a href="https://www.nuget.org/packages/EntityFramework/6.1.3">Entity Framework 6.1.3</a>.</li> <li>Prevent the IDataReader.GetDataTypeName method from throwing "No current row" exceptions. Fix for [94252b9059].</li> <li>When BinaryGUID handling is off, transform the LINQ parameter types as well. Fix for [a4d9c7ee94]. <b>** Potentially Incompatible Change **</b></li> <li>The IDataReader.GetDataTypeName method should always return the declared type name. <b>** Potentially Incompatible Change **</b></li> </ul> <p> <b>1.0.96.0 - March 5, 2015</b> |
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Changes to www/news.wiki.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 | <title>News</title> <b>Version History</b> <p> <b>1.0.97.0 - May XX, 2015 <font color="red">(release scheduled)</font></b> </p> <ul> <li>Updated to [https://www.nuget.org/packages/EntityFramework/6.1.3|Entity Framework 6.1.3].</li> <li>Prevent the IDataReader.GetDataTypeName method from throwing "No current row" exceptions. Fix for [94252b9059].</li> <li>When BinaryGUID handling is off, transform the LINQ parameter types as well. Fix for [a4d9c7ee94]. <b>** Potentially Incompatible Change **</b></li> <li>The IDataReader.GetDataTypeName method should always return the declared type name. <b>** Potentially Incompatible Change **</b></li> </ul> <p> <b>1.0.96.0 - March 5, 2015</b> | > | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 | <title>News</title> <b>Version History</b> <p> <b>1.0.97.0 - May XX, 2015 <font color="red">(release scheduled)</font></b> </p> <ul> <li>Updated to [https://www.sqlite.org/draft/releaselog/3_8_9.html|SQLite 3.8.9].</li> <li>Updated to [https://www.nuget.org/packages/EntityFramework/6.1.3|Entity Framework 6.1.3].</li> <li>Prevent the IDataReader.GetDataTypeName method from throwing "No current row" exceptions. Fix for [94252b9059].</li> <li>When BinaryGUID handling is off, transform the LINQ parameter types as well. Fix for [a4d9c7ee94]. <b>** Potentially Incompatible Change **</b></li> <li>The IDataReader.GetDataTypeName method should always return the declared type name. <b>** Potentially Incompatible Change **</b></li> </ul> <p> <b>1.0.96.0 - March 5, 2015</b> |
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