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Overview
Comment: | Modify the native interop assembly to help prevent possible thread race conditions between sqlite3_close_interop and sqlite3_finalize_interop. |
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Downloads: | Tarball | ZIP archive |
Timelines: | family | ancestors | descendants | both | trunk |
Files: | files | file ages | folders |
SHA1: |
74a33d10da8b97429d4d4c0e285d4dd3 |
User & Date: | mistachkin 2012-06-02 00:14:36.740 |
Context
2012-06-02
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00:54 | Prevent possible race conditions involving the managed backup API methods. check-in: fc724d683a user: mistachkin tags: trunk | |
00:14 | Modify the native interop assembly to help prevent possible thread race conditions between sqlite3_close_interop and sqlite3_finalize_interop. check-in: 74a33d10da user: mistachkin tags: trunk | |
2012-05-27
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21:54 | Doc and packaging updates for release 1.0.81.0. check-in: 84c0e6e786 user: mistachkin tags: trunk, release, release-1.0.81.0 | |
Changes
Changes to SQLite.Interop/src/win/interop.c.
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60 61 62 63 64 65 66 | */ SQLITE_API int WINAPI sqlite3_close_interop(sqlite3 *db) { int ret; ret = sqlite3_close(db); | | > > > > > > > > | 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 | */ SQLITE_API int WINAPI sqlite3_close_interop(sqlite3 *db) { int ret; ret = sqlite3_close(db); if (ret == SQLITE_BUSY) { sqlite3_mutex_enter(db->mutex); if (!db->pVdbe) { sqlite3_mutex_leave(db->mutex); return ret; } while (db->pVdbe) { // Make a copy of the first prepared statement Vdbe *p = (Vdbe *)sqlite3DbMallocZero_interop(db, sizeof(Vdbe)); Vdbe *po = db->pVdbe; if (!p) |
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98 99 100 101 102 103 104 105 106 107 108 109 110 111 | } else { ZeroMemory(po, sizeof(Vdbe)); po->magic = VDBE_MAGIC_DEAD; } } ret = sqlite3_close(db); } return ret; } SQLITE_API int WINAPI sqlite3_open_interop(const char*filename, int flags, sqlite3 **ppdb) | > | 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 | } else { ZeroMemory(po, sizeof(Vdbe)); po->magic = VDBE_MAGIC_DEAD; } } sqlite3_mutex_leave(db->mutex); ret = sqlite3_close(db); } return ret; } SQLITE_API int WINAPI sqlite3_open_interop(const char*filename, int flags, sqlite3 **ppdb) |
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232 233 234 235 236 237 238 | *plen = (pval != 0) ? wcslen((wchar_t *)pval) * sizeof(wchar_t): 0; return pval; } SQLITE_API int WINAPI sqlite3_finalize_interop(sqlite3_stmt *stmt) { Vdbe *p; | < | | | > | > | > > < < | > | > > > > > | 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 | *plen = (pval != 0) ? wcslen((wchar_t *)pval) * sizeof(wchar_t): 0; return pval; } SQLITE_API int WINAPI sqlite3_finalize_interop(sqlite3_stmt *stmt) { Vdbe *p; int ret = SQLITE_OK; p = (Vdbe *)stmt; if (p) { sqlite3 *db = p->db; if (db != NULL) sqlite3_mutex_enter(db->mutex); if ((p->magic == VDBE_MAGIC_DEAD) && (db == NULL)) { sqlite3DbFree_interop(db, p); } else { ret = sqlite3_finalize(stmt); } if (db != NULL) sqlite3_mutex_leave(db->mutex); } return ret; } SQLITE_API int WINAPI sqlite3_reset_interop(sqlite3_stmt *stmt) { int ret; |
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