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Overview
| Comment: | Support creating a SQLiteConnection instance from a pre-existing native connection handle (i.e. one that cannot be disposed). |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | virtualTables |
| Files: | files | file ages | folders |
| SHA1: |
b6c0bcadb303dd609e5ef8b1a2b5df33 |
| User & Date: | mistachkin 2013-06-06 19:36:14 |
Context
|
2013-06-07
| ||
| 00:04 | Add initial marshalling infrastructure and start implementing the xCreate and xConnect virtual table methods. check-in: bf5505be7a user: mistachkin tags: virtualTables | |
|
2013-06-06
| ||
| 19:36 | Support creating a SQLiteConnection instance from a pre-existing native connection handle (i.e. one that cannot be disposed). check-in: b6c0bcadb3 user: mistachkin tags: virtualTables | |
|
2013-06-03
| ||
| 01:57 | Initial phase of experimental support for implementing virtual tables in managed code. No docs, no tests, does not work yet, and may not even compile. check-in: 273b0c601f user: mistachkin tags: virtualTables | |
Changes
Changes to System.Data.SQLite/SQLite3.cs.
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protected bool _usePool;
protected int _poolVersion;
#if (NET_35 || NET_40 || NET_45) && !PLATFORM_COMPACTFRAMEWORK
private bool _buildingSchema;
#endif
/// <summary>
/// The user-defined functions registered on this connection
/// </summary>
protected SQLiteFunction[] _functionsArray;
internal SQLite3(SQLiteDateFormats fmt, DateTimeKind kind, string fmtString)
: base(fmt, kind, fmtString)
{
}
///////////////////////////////////////////////////////////////////////////////////////////////
#region IDisposable "Pattern" Members
private bool disposed;
private void CheckDisposed() /* throw */
................................................................................
// It isn't necessary to cleanup any functions we've registered. If the connection
// goes to the pool and is resurrected later, re-registered functions will overwrite the
// previous functions. The SQLiteFunctionCookieHandle will take care of freeing unmanaged
// resources belonging to the previously-registered functions.
internal override void Close(bool canThrow)
{
if (_sql != null)
{
if (_usePool)
{
if (SQLiteBase.ResetConnection(_sql, _sql, canThrow))
{
SQLiteConnectionPool.Add(_fileName, _sql, _poolVersion);
................................................................................
}
#if !NET_COMPACT_20 && TRACE_CONNECTION
Trace.WriteLine(String.Format("Open: {0}", db));
#endif
if (n != SQLiteErrorCode.Ok) throw new SQLiteException(n, null);
_sql = new SQLiteConnectionHandle(db);
}
lock (_sql) { /* HACK: Force the SyncBlock to be "created" now. */ }
}
// Bind functions to this connection. If any previous functions of the same name
// were already bound, then the new bindings replace the old.
_functionsArray = SQLiteFunction.BindFunctions(this, connectionFlags);
SetTimeout(0);
|
> > > > > > > > | > > > > > | |
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protected bool _usePool;
protected int _poolVersion;
#if (NET_35 || NET_40 || NET_45) && !PLATFORM_COMPACTFRAMEWORK
private bool _buildingSchema;
#endif
/// <summary>
/// This field will be non-zero if this instance owns the native connection
/// handle and should dispose of it when it is no longer needed.
/// </summary>
protected bool _ownHandle;
/// <summary>
/// The user-defined functions registered on this connection
/// </summary>
protected SQLiteFunction[] _functionsArray;
///////////////////////////////////////////////////////////////////////////////////////////////
internal SQLite3(SQLiteDateFormats fmt, DateTimeKind kind, string fmtString, bool ownHandle)
: base(fmt, kind, fmtString)
{
_ownHandle = ownHandle;
}
///////////////////////////////////////////////////////////////////////////////////////////////
#region IDisposable "Pattern" Members
private bool disposed;
private void CheckDisposed() /* throw */
................................................................................
// It isn't necessary to cleanup any functions we've registered. If the connection
// goes to the pool and is resurrected later, re-registered functions will overwrite the
// previous functions. The SQLiteFunctionCookieHandle will take care of freeing unmanaged
// resources belonging to the previously-registered functions.
internal override void Close(bool canThrow)
{
if (!_ownHandle)
return;
if (_sql != null)
{
if (_usePool)
{
if (SQLiteBase.ResetConnection(_sql, _sql, canThrow))
{
SQLiteConnectionPool.Add(_fileName, _sql, _poolVersion);
................................................................................
}
#if !NET_COMPACT_20 && TRACE_CONNECTION
Trace.WriteLine(String.Format("Open: {0}", db));
#endif
if (n != SQLiteErrorCode.Ok) throw new SQLiteException(n, null);
_ownHandle = true;
_sql = new SQLiteConnectionHandle(db, _ownHandle);
}
lock (_sql) { /* HACK: Force the SyncBlock to be "created" now. */ }
}
// Bind functions to this connection. If any previous functions of the same name
// were already bound, then the new bindings replace the old.
_functionsArray = SQLiteFunction.BindFunctions(this, connectionFlags);
SetTimeout(0);
|
Changes to System.Data.SQLite/SQLite3_UTF16.cs.
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using System.Runtime.InteropServices;
/// <summary>
/// Alternate SQLite3 object, overriding many text behaviors to support UTF-16 (Unicode)
/// </summary>
internal sealed class SQLite3_UTF16 : SQLite3
{
internal SQLite3_UTF16(SQLiteDateFormats fmt, DateTimeKind kind, string fmtString)
: base(fmt, kind, fmtString)
{
}
///////////////////////////////////////////////////////////////////////////////////////////////
#region IDisposable "Pattern" Members
private bool disposed;
................................................................................
}
#if !NET_COMPACT_20 && TRACE_CONNECTION
Trace.WriteLine(String.Format("Open16: {0}", db));
#endif
if (n != SQLiteErrorCode.Ok) throw new SQLiteException(n, null);
_sql = new SQLiteConnectionHandle(db);
}
lock (_sql) { /* HACK: Force the SyncBlock to be "created" now. */ }
}
_functionsArray = SQLiteFunction.BindFunctions(this, connectionFlags);
SetTimeout(0);
GC.KeepAlive(_sql);
}
|
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>
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|
using System.Runtime.InteropServices;
/// <summary>
/// Alternate SQLite3 object, overriding many text behaviors to support UTF-16 (Unicode)
/// </summary>
internal sealed class SQLite3_UTF16 : SQLite3
{
internal SQLite3_UTF16(SQLiteDateFormats fmt, DateTimeKind kind, string fmtString, bool ownHandle)
: base(fmt, kind, fmtString, ownHandle)
{
}
///////////////////////////////////////////////////////////////////////////////////////////////
#region IDisposable "Pattern" Members
private bool disposed;
................................................................................
}
#if !NET_COMPACT_20 && TRACE_CONNECTION
Trace.WriteLine(String.Format("Open16: {0}", db));
#endif
if (n != SQLiteErrorCode.Ok) throw new SQLiteException(n, null);
base._ownHandle = true;
_sql = new SQLiteConnectionHandle(db, base._ownHandle);
}
lock (_sql) { /* HACK: Force the SyncBlock to be "created" now. */ }
}
_functionsArray = SQLiteFunction.BindFunctions(this, connectionFlags);
SetTimeout(0);
GC.KeepAlive(_sql);
}
|
Changes to System.Data.SQLite/SQLiteConnection.cs.
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#if !PLATFORM_COMPACTFRAMEWORK
/// <summary>
/// Whether or not the connection is enlisted in a distrubuted transaction
/// </summary>
internal SQLiteEnlistment _enlistment;
#endif
/// <summary>
/// The base SQLite object to interop with
/// </summary>
internal SQLiteBase _sql;
/// <summary>
/// The database filename minus path and extension
/// </summary>
................................................................................
///<overloads>
/// Constructs a new SQLiteConnection object
/// </overloads>
/// <summary>
/// Default constructor
/// </summary>
public SQLiteConnection()
: this("")
{
}
/// <summary>
/// Initializes the connection with the specified connection string.
/// </summary>
/// <param name="connectionString">The connection string to use.</param>
public SQLiteConnection(string connectionString)
: this(connectionString, false)
{
// do nothing.
}
/// <summary>
/// Initializes the connection with the specified connection string.
/// </summary>
/// <param name="connectionString">
/// The connection string to use on.
/// </param>
/// <param name="parseViaFramework">
/// Non-zero to parse the connection string using the built-in (i.e.
/// framework provided) parser when opening the connection.
/// </param>
public SQLiteConnection(string connectionString, bool parseViaFramework)
{
................................................................................
{
UnsafeNativeMethods.sqlite3_log(
SQLiteErrorCode.Ok, SQLiteConvert.ToUTF8("logging initialized."));
}
#endif
_parseViaFramework = parseViaFramework;
_flags = SQLiteConnectionFlags.Default;
_connectionState = ConnectionState.Closed;
_connectionString = "";
//_commandList = new List<WeakReference>();
if (connectionString != null)
ConnectionString = connectionString;
}
/// <summary>
/// Clones the settings and connection string from an existing connection. If the existing connection is already open, this
/// function will open its own connection, enumerate any attached databases of the original connection, and automatically
/// attach to them.
/// </summary>
/// <param name="connection">The connection to copy the settings from.</param>
public SQLiteConnection(SQLiteConnection connection)
: this(connection.ConnectionString)
{
string str;
if (connection.State == ConnectionState.Open)
{
Open();
................................................................................
/// created.
/// </returns>
public static object CreateHandle(
IntPtr nativeHandle
)
{
if (nativeHandle == IntPtr.Zero) return null;
return new SQLiteConnectionHandle(nativeHandle);
}
///////////////////////////////////////////////////////////////////////////////////////////////
#region Backup API Members
/// <summary>
/// Backs up the database, using the specified database connection as the
................................................................................
string dateTimeFormat = FindKey(opts, "DateTimeFormatString",
DefaultDateTimeFormatString);
//
// NOTE: SQLite automatically sets the encoding of the database to
// UTF16 if called from sqlite3_open16().
//
if (SQLiteConvert.ToBoolean(FindKey(opts, "UseUTF16Encoding",
DefaultUseUTF16Encoding.ToString())))
{
_sql = new SQLite3_UTF16(dateFormat, kind, dateTimeFormat);
}
else
{
_sql = new SQLite3(dateFormat, kind, dateTimeFormat);
}
}
SQLiteOpenFlagsEnum flags = SQLiteOpenFlagsEnum.None;
if (!SQLiteConvert.ToBoolean(FindKey(opts, "FailIfMissing", DefaultFailIfMissing.ToString())))
flags |= SQLiteOpenFlagsEnum.Create;
................................................................................
//
// NOTE: SQLite automatically sets the encoding of the database to
// UTF16 if called from sqlite3_open16().
//
if (SQLiteConvert.ToBoolean(FindKey(opts,
"UseUTF16Encoding", DefaultUseUTF16Encoding.ToString())))
{
_sql = new SQLite3_UTF16(dateFormat, kind, dateTimeFormat);
}
else
{
_sql = new SQLite3(dateFormat, kind, dateTimeFormat);
}
}
if (_sql != null) return _sql.Shutdown();
throw new InvalidOperationException("Database connection not active.");
}
/// Enables or disabled extended result codes returned by SQLite
|
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#if !PLATFORM_COMPACTFRAMEWORK
/// <summary>
/// Whether or not the connection is enlisted in a distrubuted transaction
/// </summary>
internal SQLiteEnlistment _enlistment;
#endif
/// <summary>
/// This field will be non-zero if this instance owns the native connection
/// handle and should dispose of it when it is no longer needed.
/// </summary>
private bool _ownHandle;
/// <summary>
/// The base SQLite object to interop with
/// </summary>
internal SQLiteBase _sql;
/// <summary>
/// The database filename minus path and extension
/// </summary>
................................................................................
///<overloads>
/// Constructs a new SQLiteConnection object
/// </overloads>
/// <summary>
/// Default constructor
/// </summary>
public SQLiteConnection()
: this((string)null)
{
}
/// <summary>
/// Initializes the connection with the specified connection string.
/// </summary>
/// <param name="connectionString">The connection string to use.</param>
public SQLiteConnection(string connectionString)
: this(connectionString, false)
{
// do nothing.
}
/// <summary>
/// Initializes the connection with a pre-existing native connection handle.
/// </summary>
/// <param name="db">
/// The native connection handle to use.
/// </param>
/// <param name="ownHandle">
/// Non-zero if this instance owns the native connection handle and
/// should dispose of it when it is no longer needed.
/// </param>
internal SQLiteConnection(IntPtr db, bool ownHandle)
: this()
{
_ownHandle = ownHandle;
_sql = new SQLite3(
SQLiteDateFormats.Default, DateTimeKind.Unspecified, null,
_ownHandle);
}
/// <summary>
/// Initializes the connection with the specified connection string.
/// </summary>
/// <param name="connectionString">
/// The connection string to use.
/// </param>
/// <param name="parseViaFramework">
/// Non-zero to parse the connection string using the built-in (i.e.
/// framework provided) parser when opening the connection.
/// </param>
public SQLiteConnection(string connectionString, bool parseViaFramework)
{
................................................................................
{
UnsafeNativeMethods.sqlite3_log(
SQLiteErrorCode.Ok, SQLiteConvert.ToUTF8("logging initialized."));
}
#endif
_parseViaFramework = parseViaFramework;
_ownHandle = true;
_flags = SQLiteConnectionFlags.Default;
_connectionState = ConnectionState.Closed;
_connectionString = null;
if (connectionString != null)
ConnectionString = connectionString;
}
/// <summary>
/// Clones the settings and connection string from an existing connection. If the existing connection is already open, this
/// function will open its own connection, enumerate any attached databases of the original connection, and automatically
/// attach to them.
/// </summary>
/// <param name="connection">The connection to copy the settings from.</param>
public SQLiteConnection(SQLiteConnection connection)
: this(connection.ConnectionString, connection.ParseViaFramework)
{
string str;
if (connection.State == ConnectionState.Open)
{
Open();
................................................................................
/// created.
/// </returns>
public static object CreateHandle(
IntPtr nativeHandle
)
{
if (nativeHandle == IntPtr.Zero) return null;
return new SQLiteConnectionHandle(nativeHandle, true);
}
///////////////////////////////////////////////////////////////////////////////////////////////
#region Backup API Members
/// <summary>
/// Backs up the database, using the specified database connection as the
................................................................................
string dateTimeFormat = FindKey(opts, "DateTimeFormatString",
DefaultDateTimeFormatString);
//
// NOTE: SQLite automatically sets the encoding of the database to
// UTF16 if called from sqlite3_open16().
//
_ownHandle = true;
if (SQLiteConvert.ToBoolean(FindKey(opts, "UseUTF16Encoding",
DefaultUseUTF16Encoding.ToString())))
{
_sql = new SQLite3_UTF16(dateFormat, kind, dateTimeFormat, _ownHandle);
}
else
{
_sql = new SQLite3(dateFormat, kind, dateTimeFormat, _ownHandle);
}
}
SQLiteOpenFlagsEnum flags = SQLiteOpenFlagsEnum.None;
if (!SQLiteConvert.ToBoolean(FindKey(opts, "FailIfMissing", DefaultFailIfMissing.ToString())))
flags |= SQLiteOpenFlagsEnum.Create;
................................................................................
//
// NOTE: SQLite automatically sets the encoding of the database to
// UTF16 if called from sqlite3_open16().
//
if (SQLiteConvert.ToBoolean(FindKey(opts,
"UseUTF16Encoding", DefaultUseUTF16Encoding.ToString())))
{
_sql = new SQLite3_UTF16(dateFormat, kind, dateTimeFormat, _ownHandle);
}
else
{
_sql = new SQLite3(dateFormat, kind, dateTimeFormat, _ownHandle);
}
}
if (_sql != null) return _sql.Shutdown();
throw new InvalidOperationException("Database connection not active.");
}
/// Enables or disabled extended result codes returned by SQLite
|
Changes to System.Data.SQLite/SQLiteLog.cs.
177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 |
#endif
//
// NOTE: Create an instance of the SQLite wrapper class.
//
if (_sql == null)
_sql = new SQLite3(SQLiteDateFormats.Default,
DateTimeKind.Unspecified, null);
//
// NOTE: Create a single "global" (i.e. per-process) callback
// to register with SQLite. This callback will pass the
// event on to any registered handler. We only want to
// do this once.
//
|
| |
177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 |
#endif
//
// NOTE: Create an instance of the SQLite wrapper class.
//
if (_sql == null)
_sql = new SQLite3(SQLiteDateFormats.Default,
DateTimeKind.Unspecified, null, true);
//
// NOTE: Create a single "global" (i.e. per-process) callback
// to register with SQLite. This callback will pass the
// event on to any registered handler. We only want to
// do this once.
//
|
Changes to System.Data.SQLite/SQLiteModuleBase.cs.
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{
}
///////////////////////////////////////////////////////////////////////
public class SQLiteIndexConstraint
{
private SQLiteModuleBase.UnsafeNativeMethods.sqlite3_index_constraint constraint;
}
///////////////////////////////////////////////////////////////////////
public class SQLiteIndexOrderBy
{
private SQLiteModuleBase.UnsafeNativeMethods.sqlite3_index_orderby orderBy;
}
///////////////////////////////////////////////////////////////////////
public class SQLiteIndexConstraintUsage
{
private SQLiteModuleBase.UnsafeNativeMethods.sqlite3_index_constraint_usage constraintUsage;
}
///////////////////////////////////////////////////////////////////////
public class SQLiteIndex
{
SQLiteIndexConstraint[] Constraints;
................................................................................
double estimatedCost; /* Estimated cost of using this index */
}
///////////////////////////////////////////////////////////////////////
public class SQLiteVirtualTableCursor
{
private SQLiteModuleBase.UnsafeNativeMethods.sqlite3_vtab_cursor cursor;
}
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate int xFunc(
IntPtr context,
int argc,
[MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 1)]
IntPtr[] argv
);
public interface ISQLiteNativeModule
{
SQLiteErrorCode xCreate(IntPtr db, IntPtr pAux, int argc, ref IntPtr[] argv, ref IntPtr vTab, ref IntPtr error);
SQLiteErrorCode xConnect(IntPtr db, IntPtr pAux, int argc, ref IntPtr[] argv, ref IntPtr vTab, ref IntPtr error);
SQLiteErrorCode xBestIndex(IntPtr vTab, IntPtr index);
SQLiteErrorCode xDisconnect(IntPtr vTab);
SQLiteErrorCode xDestroy(IntPtr vTab);
SQLiteErrorCode xOpen(IntPtr vTab, ref IntPtr cursor);
SQLiteErrorCode xClose(IntPtr cursor);
SQLiteErrorCode xFilter(IntPtr cursor, int idxNum, IntPtr idxStr, int argc, IntPtr[] argv);
SQLiteErrorCode xNext(IntPtr cursor);
SQLiteErrorCode xEof(IntPtr cursor);
SQLiteErrorCode xColumn(IntPtr cursor, IntPtr context, int index);
SQLiteErrorCode xRowId(IntPtr cursor, ref long rowId);
SQLiteErrorCode xUpdate(IntPtr vtab, int nData, ref IntPtr apData, ref long rowId);
SQLiteErrorCode xBegin(IntPtr vtab);
SQLiteErrorCode xSync(IntPtr vtab);
SQLiteErrorCode xCommit(IntPtr vtab);
SQLiteErrorCode xRollback(IntPtr vtab);
SQLiteErrorCode xFindFunction(IntPtr pVtab, int nArg, IntPtr zName, ref xFunc pxFunc, ref IntPtr ppArg);
SQLiteErrorCode xRename(IntPtr pVtab, IntPtr zNew);
SQLiteErrorCode xSavepoint(IntPtr pVtab, int iSavepoint);
SQLiteErrorCode xRelease(IntPtr pVtab, int iSavepoint);
SQLiteErrorCode xRollbackTo(IntPtr pVtab, int iSavepoint);
}
................................................................................
#else
[SecurityPermission(SecurityAction.LinkDemand, UnmanagedCode = true)]
#endif
public abstract class SQLiteModuleBase : ISQLiteManagedModule, ISQLiteNativeModule, IDisposable
{
#region Unsafe Native Methods Class
[SuppressUnmanagedCodeSecurity()]
internal static class UnsafeNativeMethods
{
// https://www.sqlite.org/vtab.html
[StructLayout(LayoutKind.Sequential)]
public struct sqlite3_module
{
................................................................................
sqlite3_index_constraint_usage[] aConstraintUsage;
int idxNum; /* Number used to identify the index */
string idxStr; /* String, possibly obtained from sqlite3_malloc */
int needToFreeIdxStr; /* Free idxStr using sqlite3_free() if true */
int orderByConsumed; /* True if output is already ordered */
double estimatedCost; /* Estimated cost of using this index */
}
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xCreate(
IntPtr db,
IntPtr pAux,
int argc,
[MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 2)]
ref IntPtr[] argv,
ref IntPtr vTab,
ref IntPtr error
);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xConnect(
IntPtr db,
IntPtr pAux,
int argc,
[MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 2)]
ref IntPtr[] argv,
ref IntPtr vTab,
ref IntPtr error
);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xBestIndex(
[MarshalAs(UnmanagedType.LPStruct)]
IntPtr vTab,
[MarshalAs(UnmanagedType.LPStruct)]
IntPtr index
);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xDisconnect(
[MarshalAs(UnmanagedType.LPStruct)]
IntPtr vTab
);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xDestroy(
[MarshalAs(UnmanagedType.LPStruct)]
IntPtr vTab
);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xOpen(
[MarshalAs(UnmanagedType.LPStruct)]
IntPtr vTab,
ref IntPtr cursor
);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xClose(
[MarshalAs(UnmanagedType.LPStruct)]
IntPtr cursor
................................................................................
IntPtr cursor,
ref long rowId
);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xUpdate(
[MarshalAs(UnmanagedType.LPStruct)]
IntPtr vtab,
int nData,
ref IntPtr apData,
ref long rowId
);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xBegin(
[MarshalAs(UnmanagedType.LPStruct)]
IntPtr vtab
);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xSync(
[MarshalAs(UnmanagedType.LPStruct)]
IntPtr vtab
);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xCommit(
[MarshalAs(UnmanagedType.LPStruct)]
IntPtr vtab
);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xRollback(
[MarshalAs(UnmanagedType.LPStruct)]
IntPtr vtab
);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xFindFunction(
[MarshalAs(UnmanagedType.LPStruct)]
IntPtr pVtab,
int nArg,
................................................................................
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xRollbackTo(
[MarshalAs(UnmanagedType.LPStruct)]
IntPtr pVtab,
int iSavepoint
);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate void xDestroyModule(
IntPtr pClientData
);
private static readonly int SQLITE_INDEX_CONSTRAINT_EQ = 2;
private static readonly int SQLITE_INDEX_CONSTRAINT_GT = 4;
private static readonly int SQLITE_INDEX_CONSTRAINT_LE = 8;
private static readonly int SQLITE_INDEX_CONSTRAINT_LT = 16;
private static readonly int SQLITE_INDEX_CONSTRAINT_GE = 32;
private static readonly int SQLITE_INDEX_CONSTRAINT_MATCH = 64;
[DllImport("sqlite3", CallingConvention = CallingConvention.Cdecl)]
internal static extern void sqlite3_create_module_v2(
IntPtr db,
IntPtr name,
IntPtr pModule,
IntPtr pClientData,
xDestroyModule xDestroy
);
[DllImport("sqlite3", CallingConvention = CallingConvention.Cdecl)]
internal static extern SQLiteErrorCode sqlite3_declare_vtab(IntPtr db, IntPtr zSQL);
[DllImport("sqlite3", CallingConvention = CallingConvention.Cdecl)]
internal static extern IntPtr sqlite3_mprintf(IntPtr format, __arglist);
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Private Data
private IntPtr database;
#endregion
///////////////////////////////////////////////////////////////////////
private UnsafeNativeMethods.sqlite3_module CreateNativeModule()
{
UnsafeNativeMethods.sqlite3_module module =
new UnsafeNativeMethods.sqlite3_module();
module.iVersion = 2;
module.xCreate = new UnsafeNativeMethods.xCreate(xCreate);
module.xConnect = new UnsafeNativeMethods.xConnect(xConnect);
module.xBestIndex = new UnsafeNativeMethods.xBestIndex(xBestIndex);
module.xDisconnect = new UnsafeNativeMethods.xDisconnect(xDisconnect);
module.xDestroy = new UnsafeNativeMethods.xDestroy(xDestroy);
module.xOpen = new UnsafeNativeMethods.xOpen(xOpen);
module.xClose = new UnsafeNativeMethods.xClose(xClose);
module.xFilter = new UnsafeNativeMethods.xFilter(xFilter);
module.xNext = new UnsafeNativeMethods.xNext(xNext);
module.xEof = new UnsafeNativeMethods.xEof(xEof);
module.xColumn = new UnsafeNativeMethods.xColumn(xColumn);
module.xRowId = new UnsafeNativeMethods.xRowId(xRowId);
module.xUpdate = new UnsafeNativeMethods.xUpdate(xUpdate);
module.xBegin = new UnsafeNativeMethods.xBegin(xBegin);
module.xSync = new UnsafeNativeMethods.xSync(xSync);
module.xCommit = new UnsafeNativeMethods.xCommit(xCommit);
module.xRollback = new UnsafeNativeMethods.xRollback(xRollback);
module.xFindFunction = new UnsafeNativeMethods.xFindFunction(xFindFunction);
module.xRename = new UnsafeNativeMethods.xRename(xRename);
module.xSavepoint = new UnsafeNativeMethods.xSavepoint(xSavepoint);
module.xRelease = new UnsafeNativeMethods.xRelease(xRelease);
module.xRollbackTo = new UnsafeNativeMethods.xRollbackTo(xRollbackTo);
IntPtr foo = IntPtr.Zero;
Marshal.PtrToStructure(foo, typeof(UnsafeNativeMethods.sqlite3_module));
return module;
}
///////////////////////////////////////////////////////////////////////
public SQLiteModuleBase()
{
}
///////////////////////////////////////////////////////////////////////
public SQLiteErrorCode xCreate(
IntPtr db,
IntPtr pAux,
int argc,
ref IntPtr[] argv,
ref IntPtr vTab,
ref IntPtr error
)
{
return SQLiteErrorCode.Ok;
}
public SQLiteErrorCode xConnect(
IntPtr db,
IntPtr pAux,
int argc,
ref IntPtr[] argv,
ref IntPtr vTab,
ref IntPtr error
)
{
return SQLiteErrorCode.Ok;
}
public SQLiteErrorCode xBestIndex(
IntPtr vTab,
IntPtr index
)
{
return SQLiteErrorCode.Ok;
}
public SQLiteErrorCode xDisconnect(
IntPtr vTab
)
{
return SQLiteErrorCode.Ok;
}
public SQLiteErrorCode xDestroy(
IntPtr vTab
)
{
return SQLiteErrorCode.Ok;
}
public SQLiteErrorCode xOpen(
IntPtr vTab,
ref IntPtr cursor
)
{
return SQLiteErrorCode.Ok;
}
public SQLiteErrorCode xClose(
IntPtr cursor
)
{
return SQLiteErrorCode.Ok;
}
public SQLiteErrorCode xFilter(
IntPtr cursor,
int idxNum,
IntPtr idxStr,
int argc,
IntPtr[] argv
)
{
return SQLiteErrorCode.Ok;
}
public SQLiteErrorCode xNext(
IntPtr cursor
)
{
return SQLiteErrorCode.Ok;
}
public SQLiteErrorCode xEof(
IntPtr cursor
)
{
return SQLiteErrorCode.Ok;
}
public SQLiteErrorCode xColumn(
IntPtr cursor,
IntPtr context,
int index
)
{
return SQLiteErrorCode.Ok;
}
public SQLiteErrorCode xRowId(
IntPtr cursor,
ref long rowId
)
{
return SQLiteErrorCode.Ok;
}
public SQLiteErrorCode xUpdate(
IntPtr vtab,
int nData,
ref IntPtr apData,
ref long rowId
)
{
return SQLiteErrorCode.Ok;
}
public SQLiteErrorCode xBegin(
IntPtr vtab
)
{
return SQLiteErrorCode.Ok;
}
public SQLiteErrorCode xSync(
IntPtr vtab
)
{
return SQLiteErrorCode.Ok;
}
public SQLiteErrorCode xCommit(
IntPtr vtab
)
{
return SQLiteErrorCode.Ok;
}
public SQLiteErrorCode xRollback(
IntPtr vtab
)
{
return SQLiteErrorCode.Ok;
}
public SQLiteErrorCode xFindFunction(
IntPtr pVtab,
int nArg,
IntPtr zName,
ref xFunc pxFunc,
ref IntPtr ppArg
)
{
return SQLiteErrorCode.Ok;
}
public SQLiteErrorCode xRename(
IntPtr pVtab,
IntPtr zNew
)
{
return SQLiteErrorCode.Ok;
}
public SQLiteErrorCode xSavepoint(
IntPtr pVtab,
int iSavepoint
)
{
return SQLiteErrorCode.Ok;
}
public SQLiteErrorCode xRelease(
IntPtr pVtab,
int iSavepoint
)
{
return SQLiteErrorCode.Ok;
}
public SQLiteErrorCode xRollbackTo(
IntPtr pVtab,
int iSavepoint
)
{
return SQLiteErrorCode.Ok;
}
///////////////////////////////////////////////////////////////////////
public abstract SQLiteErrorCode Create(SQLiteConnection connection, IntPtr pClientData, string[] argv, ref string error);
public abstract SQLiteErrorCode Connect(SQLiteConnection connection, IntPtr pClientData, string[] argv, ref string error);
public abstract SQLiteErrorCode BestIndex(ref SQLiteIndex index);
public abstract SQLiteErrorCode Disconnect();
public abstract SQLiteErrorCode Destroy();
public abstract SQLiteErrorCode Open(ref SQLiteVirtualTableCursor cursor);
public abstract SQLiteErrorCode Close(SQLiteVirtualTableCursor cursor);
public abstract SQLiteErrorCode Filter(SQLiteVirtualTableCursor cursor, int idxNum, string idxStr, SQLiteValue[] values);
public abstract SQLiteErrorCode Next(SQLiteVirtualTableCursor cursor);
public abstract SQLiteErrorCode Eof(SQLiteVirtualTableCursor cursor);
public abstract SQLiteErrorCode Column(SQLiteVirtualTableCursor cursor, SQLiteContext context, int index);
public abstract SQLiteErrorCode RowId(SQLiteVirtualTableCursor cursor, ref long rowId);
public abstract SQLiteErrorCode Update(SQLiteValue[] values, ref long rowId);
public abstract SQLiteErrorCode Begin();
public abstract SQLiteErrorCode Sync();
public abstract SQLiteErrorCode Commit();
public abstract SQLiteErrorCode Rollback();
public abstract SQLiteErrorCode FindFunction(string zName, ref SQLiteFunction function, object[] args);
public abstract SQLiteErrorCode Rename(string zNew);
public abstract SQLiteErrorCode Savepoint(int iSavepoint);
public abstract SQLiteErrorCode Release(int iSavepoint);
public abstract SQLiteErrorCode RollbackTo(int iSavepoint);
///////////////////////////////////////////////////////////////////////
#region IDisposable Members
public void Dispose()
{
Dispose(true);
|
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29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 .. 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 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 ... 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 ... 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 ... 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 ... 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 |
{
}
///////////////////////////////////////////////////////////////////////
public class SQLiteIndexConstraint
{
private SQLiteModuleBase.UnsafeNativeMethods2.sqlite3_index_constraint constraint;
}
///////////////////////////////////////////////////////////////////////
public class SQLiteIndexOrderBy
{
private SQLiteModuleBase.UnsafeNativeMethods2.sqlite3_index_orderby orderBy;
}
///////////////////////////////////////////////////////////////////////
public class SQLiteIndexConstraintUsage
{
private SQLiteModuleBase.UnsafeNativeMethods2.sqlite3_index_constraint_usage constraintUsage;
}
///////////////////////////////////////////////////////////////////////
public class SQLiteIndex
{
SQLiteIndexConstraint[] Constraints;
................................................................................
double estimatedCost; /* Estimated cost of using this index */
}
///////////////////////////////////////////////////////////////////////
public class SQLiteVirtualTableCursor
{
private SQLiteModuleBase.UnsafeNativeMethods2.sqlite3_vtab_cursor cursor;
}
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate int xFunc(
IntPtr context,
int argc,
[MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 1)]
IntPtr[] argv
);
public interface ISQLiteNativeModule
{
SQLiteErrorCode xCreate(IntPtr db, IntPtr pAux, int argc, ref IntPtr[] argv, ref IntPtr pVtab, ref IntPtr error);
SQLiteErrorCode xConnect(IntPtr db, IntPtr pAux, int argc, ref IntPtr[] argv, ref IntPtr pVtab, ref IntPtr error);
SQLiteErrorCode xBestIndex(IntPtr pVtab, IntPtr index);
SQLiteErrorCode xDisconnect(IntPtr pVtab);
SQLiteErrorCode xDestroy(IntPtr pVtab);
SQLiteErrorCode xOpen(IntPtr pVtab, ref IntPtr cursor);
SQLiteErrorCode xClose(IntPtr cursor);
SQLiteErrorCode xFilter(IntPtr cursor, int idxNum, IntPtr idxStr, int argc, IntPtr[] argv);
SQLiteErrorCode xNext(IntPtr cursor);
SQLiteErrorCode xEof(IntPtr cursor);
SQLiteErrorCode xColumn(IntPtr cursor, IntPtr context, int index);
SQLiteErrorCode xRowId(IntPtr cursor, ref long rowId);
SQLiteErrorCode xUpdate(IntPtr pVtab, int nData, ref IntPtr apData, ref long rowId);
SQLiteErrorCode xBegin(IntPtr pVtab);
SQLiteErrorCode xSync(IntPtr pVtab);
SQLiteErrorCode xCommit(IntPtr pVtab);
SQLiteErrorCode xRollback(IntPtr pVtab);
SQLiteErrorCode xFindFunction(IntPtr pVtab, int nArg, IntPtr zName, ref xFunc pxFunc, ref IntPtr ppArg);
SQLiteErrorCode xRename(IntPtr pVtab, IntPtr zNew);
SQLiteErrorCode xSavepoint(IntPtr pVtab, int iSavepoint);
SQLiteErrorCode xRelease(IntPtr pVtab, int iSavepoint);
SQLiteErrorCode xRollbackTo(IntPtr pVtab, int iSavepoint);
}
................................................................................
#else
[SecurityPermission(SecurityAction.LinkDemand, UnmanagedCode = true)]
#endif
public abstract class SQLiteModuleBase : ISQLiteManagedModule, ISQLiteNativeModule, IDisposable
{
#region Unsafe Native Methods Class
[SuppressUnmanagedCodeSecurity()]
internal static class UnsafeNativeMethods2
{
// https://www.sqlite.org/vtab.html
[StructLayout(LayoutKind.Sequential)]
public struct sqlite3_module
{
................................................................................
sqlite3_index_constraint_usage[] aConstraintUsage;
int idxNum; /* Number used to identify the index */
string idxStr; /* String, possibly obtained from sqlite3_malloc */
int needToFreeIdxStr; /* Free idxStr using sqlite3_free() if true */
int orderByConsumed; /* True if output is already ordered */
double estimatedCost; /* Estimated cost of using this index */
}
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xCreate(
IntPtr db,
IntPtr pAux,
int argc,
[MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 2)]
ref IntPtr[] argv,
ref IntPtr pVtab,
ref IntPtr error
);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xConnect(
IntPtr db,
IntPtr pAux,
int argc,
[MarshalAs(UnmanagedType.LPArray, SizeParamIndex = 2)]
ref IntPtr[] argv,
ref IntPtr pVtab,
ref IntPtr error
);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xBestIndex(
[MarshalAs(UnmanagedType.LPStruct)]
IntPtr pVtab,
[MarshalAs(UnmanagedType.LPStruct)]
IntPtr index
);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xDisconnect(
[MarshalAs(UnmanagedType.LPStruct)]
IntPtr pVtab
);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xDestroy(
[MarshalAs(UnmanagedType.LPStruct)]
IntPtr pVtab
);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xOpen(
[MarshalAs(UnmanagedType.LPStruct)]
IntPtr pVtab,
ref IntPtr cursor
);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xClose(
[MarshalAs(UnmanagedType.LPStruct)]
IntPtr cursor
................................................................................
IntPtr cursor,
ref long rowId
);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xUpdate(
[MarshalAs(UnmanagedType.LPStruct)]
IntPtr pVtab,
int nData,
ref IntPtr apData,
ref long rowId
);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xBegin(
[MarshalAs(UnmanagedType.LPStruct)]
IntPtr pVtab
);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xSync(
[MarshalAs(UnmanagedType.LPStruct)]
IntPtr pVtab
);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xCommit(
[MarshalAs(UnmanagedType.LPStruct)]
IntPtr pVtab
);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xRollback(
[MarshalAs(UnmanagedType.LPStruct)]
IntPtr pVtab
);
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xFindFunction(
[MarshalAs(UnmanagedType.LPStruct)]
IntPtr pVtab,
int nArg,
................................................................................
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate SQLiteErrorCode xRollbackTo(
[MarshalAs(UnmanagedType.LPStruct)]
IntPtr pVtab,
int iSavepoint
);
private static readonly int SQLITE_INDEX_CONSTRAINT_EQ = 2;
private static readonly int SQLITE_INDEX_CONSTRAINT_GT = 4;
private static readonly int SQLITE_INDEX_CONSTRAINT_LE = 8;
private static readonly int SQLITE_INDEX_CONSTRAINT_LT = 16;
private static readonly int SQLITE_INDEX_CONSTRAINT_GE = 32;
private static readonly int SQLITE_INDEX_CONSTRAINT_MATCH = 64;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Private Methods
private UnsafeNativeMethods2.sqlite3_module CreateNativeModule()
{
UnsafeNativeMethods2.sqlite3_module module =
new UnsafeNativeMethods2.sqlite3_module();
module.iVersion = 2;
module.xCreate = new UnsafeNativeMethods2.xCreate(xCreate);
module.xConnect = new UnsafeNativeMethods2.xConnect(xConnect);
module.xBestIndex = new UnsafeNativeMethods2.xBestIndex(xBestIndex);
module.xDisconnect = new UnsafeNativeMethods2.xDisconnect(xDisconnect);
module.xDestroy = new UnsafeNativeMethods2.xDestroy(xDestroy);
module.xOpen = new UnsafeNativeMethods2.xOpen(xOpen);
module.xClose = new UnsafeNativeMethods2.xClose(xClose);
module.xFilter = new UnsafeNativeMethods2.xFilter(xFilter);
module.xNext = new UnsafeNativeMethods2.xNext(xNext);
module.xEof = new UnsafeNativeMethods2.xEof(xEof);
module.xColumn = new UnsafeNativeMethods2.xColumn(xColumn);
module.xRowId = new UnsafeNativeMethods2.xRowId(xRowId);
module.xUpdate = new UnsafeNativeMethods2.xUpdate(xUpdate);
module.xBegin = new UnsafeNativeMethods2.xBegin(xBegin);
module.xSync = new UnsafeNativeMethods2.xSync(xSync);
module.xCommit = new UnsafeNativeMethods2.xCommit(xCommit);
module.xRollback = new UnsafeNativeMethods2.xRollback(xRollback);
module.xFindFunction = new UnsafeNativeMethods2.xFindFunction(xFindFunction);
module.xRename = new UnsafeNativeMethods2.xRename(xRename);
module.xSavepoint = new UnsafeNativeMethods2.xSavepoint(xSavepoint);
module.xRelease = new UnsafeNativeMethods2.xRelease(xRelease);
module.xRollbackTo = new UnsafeNativeMethods2.xRollbackTo(xRollbackTo);
return module;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region Public Constructors
public SQLiteModuleBase()
{
}
#endregion
///////////////////////////////////////////////////////////////////////
#region ISQLiteNativeModule Members
public SQLiteErrorCode xCreate(
IntPtr db,
IntPtr pAux,
int argc,
ref IntPtr[] argv,
ref IntPtr pVtab,
ref IntPtr error
)
{
SQLiteConnection connection = new SQLiteConnection(db, false);
pVtab = UnsafeNativeMethods.sqlite3_malloc(Marshal.SizeOf(typeof(
UnsafeNativeMethods2.sqlite3_vtab)));
string errorStr = null;
return Create(null, IntPtr.Zero, null, ref errorStr);
}
///////////////////////////////////////////////////////////////////////
public SQLiteErrorCode xConnect(
IntPtr db,
IntPtr pAux,
int argc,
ref IntPtr[] argv,
ref IntPtr pVtab,
ref IntPtr error
)
{
return SQLiteErrorCode.Ok;
}
///////////////////////////////////////////////////////////////////////
public SQLiteErrorCode xBestIndex(
IntPtr pVtab,
IntPtr index
)
{
return SQLiteErrorCode.Ok;
}
///////////////////////////////////////////////////////////////////////
public SQLiteErrorCode xDisconnect(
IntPtr pVtab
)
{
return SQLiteErrorCode.Ok;
}
///////////////////////////////////////////////////////////////////////
public SQLiteErrorCode xDestroy(
IntPtr pVtab
)
{
return SQLiteErrorCode.Ok;
}
///////////////////////////////////////////////////////////////////////
public SQLiteErrorCode xOpen(
IntPtr pVtab,
ref IntPtr cursor
)
{
return SQLiteErrorCode.Ok;
}
///////////////////////////////////////////////////////////////////////
public SQLiteErrorCode xClose(
IntPtr cursor
)
{
return SQLiteErrorCode.Ok;
}
///////////////////////////////////////////////////////////////////////
public SQLiteErrorCode xFilter(
IntPtr cursor,
int idxNum,
IntPtr idxStr,
int argc,
IntPtr[] argv
)
{
return SQLiteErrorCode.Ok;
}
///////////////////////////////////////////////////////////////////////
public SQLiteErrorCode xNext(
IntPtr cursor
)
{
return SQLiteErrorCode.Ok;
}
///////////////////////////////////////////////////////////////////////
public SQLiteErrorCode xEof(
IntPtr cursor
)
{
return SQLiteErrorCode.Ok;
}
///////////////////////////////////////////////////////////////////////
public SQLiteErrorCode xColumn(
IntPtr cursor,
IntPtr context,
int index
)
{
return SQLiteErrorCode.Ok;
}
///////////////////////////////////////////////////////////////////////
public SQLiteErrorCode xRowId(
IntPtr cursor,
ref long rowId
)
{
return SQLiteErrorCode.Ok;
}
///////////////////////////////////////////////////////////////////////
public SQLiteErrorCode xUpdate(
IntPtr pVtab,
int nData,
ref IntPtr apData,
ref long rowId
)
{
return SQLiteErrorCode.Ok;
}
///////////////////////////////////////////////////////////////////////
public SQLiteErrorCode xBegin(
IntPtr pVtab
)
{
return SQLiteErrorCode.Ok;
}
///////////////////////////////////////////////////////////////////////
public SQLiteErrorCode xSync(
IntPtr pVtab
)
{
return SQLiteErrorCode.Ok;
}
///////////////////////////////////////////////////////////////////////
public SQLiteErrorCode xCommit(
IntPtr pVtab
)
{
return SQLiteErrorCode.Ok;
}
///////////////////////////////////////////////////////////////////////
public SQLiteErrorCode xRollback(
IntPtr pVtab
)
{
return SQLiteErrorCode.Ok;
}
///////////////////////////////////////////////////////////////////////
public SQLiteErrorCode xFindFunction(
IntPtr pVtab,
int nArg,
IntPtr zName,
ref xFunc pxFunc,
ref IntPtr ppArg
)
{
return SQLiteErrorCode.Ok;
}
///////////////////////////////////////////////////////////////////////
public SQLiteErrorCode xRename(
IntPtr pVtab,
IntPtr zNew
)
{
return SQLiteErrorCode.Ok;
}
///////////////////////////////////////////////////////////////////////
public SQLiteErrorCode xSavepoint(
IntPtr pVtab,
int iSavepoint
)
{
return SQLiteErrorCode.Ok;
}
///////////////////////////////////////////////////////////////////////
public SQLiteErrorCode xRelease(
IntPtr pVtab,
int iSavepoint
)
{
return SQLiteErrorCode.Ok;
}
///////////////////////////////////////////////////////////////////////
public SQLiteErrorCode xRollbackTo(
IntPtr pVtab,
int iSavepoint
)
{
return SQLiteErrorCode.Ok;
}
#endregion
///////////////////////////////////////////////////////////////////////
#region ISQLiteManagedModule Members
public abstract SQLiteErrorCode Create(
SQLiteConnection connection,
IntPtr pClientData,
string[] argv,
ref string error
);
///////////////////////////////////////////////////////////////////////
public abstract SQLiteErrorCode Connect(
SQLiteConnection connection,
IntPtr pClientData,
string[] argv,
ref string error
);
///////////////////////////////////////////////////////////////////////
public abstract SQLiteErrorCode BestIndex(
ref SQLiteIndex index
);
///////////////////////////////////////////////////////////////////////
public abstract SQLiteErrorCode Disconnect();
///////////////////////////////////////////////////////////////////////
public abstract SQLiteErrorCode Destroy();
///////////////////////////////////////////////////////////////////////
public abstract SQLiteErrorCode Open(
ref SQLiteVirtualTableCursor cursor
);
///////////////////////////////////////////////////////////////////////
public abstract SQLiteErrorCode Close(
SQLiteVirtualTableCursor cursor
);
///////////////////////////////////////////////////////////////////////
public abstract SQLiteErrorCode Filter(
SQLiteVirtualTableCursor cursor,
int idxNum,
string idxStr,
SQLiteValue[] values
);
///////////////////////////////////////////////////////////////////////
public abstract SQLiteErrorCode Next(
SQLiteVirtualTableCursor cursor
);
///////////////////////////////////////////////////////////////////////
public abstract SQLiteErrorCode Eof(
SQLiteVirtualTableCursor cursor
);
///////////////////////////////////////////////////////////////////////
public abstract SQLiteErrorCode Column(
SQLiteVirtualTableCursor cursor,
SQLiteContext context,
int index
);
///////////////////////////////////////////////////////////////////////
public abstract SQLiteErrorCode RowId(
SQLiteVirtualTableCursor cursor,
ref long rowId
);
///////////////////////////////////////////////////////////////////////
public abstract SQLiteErrorCode Update(
SQLiteValue[] values,
ref long rowId
);
///////////////////////////////////////////////////////////////////////
public abstract SQLiteErrorCode Begin();
///////////////////////////////////////////////////////////////////////
public abstract SQLiteErrorCode Sync();
///////////////////////////////////////////////////////////////////////
public abstract SQLiteErrorCode Commit();
///////////////////////////////////////////////////////////////////////
public abstract SQLiteErrorCode Rollback();
///////////////////////////////////////////////////////////////////////
public abstract SQLiteErrorCode FindFunction(
string zName,
ref SQLiteFunction function,
object[] args
);
///////////////////////////////////////////////////////////////////////
public abstract SQLiteErrorCode Rename(
string zNew
);
///////////////////////////////////////////////////////////////////////
public abstract SQLiteErrorCode Savepoint(
int iSavepoint
);
///////////////////////////////////////////////////////////////////////
public abstract SQLiteErrorCode Release(
int iSavepoint
);
///////////////////////////////////////////////////////////////////////
public abstract SQLiteErrorCode RollbackTo(
int iSavepoint
);
#endregion
///////////////////////////////////////////////////////////////////////
#region IDisposable Members
public void Dispose()
{
Dispose(true);
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Changes to System.Data.SQLite/UnsafeNativeMethods.cs.
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#if !PLATFORM_COMPACTFRAMEWORK
[DllImport(SQLITE_DLL, CallingConvention = CallingConvention.Cdecl)]
#else
[DllImport(SQLITE_DLL)]
#endif
internal static extern int sqlite3_backup_pagecount(IntPtr backup);
#endregion
}
#if PLATFORM_COMPACTFRAMEWORK
internal abstract class CriticalHandle : IDisposable
{
private bool _isClosed;
................................................................................
#if PLATFORM_COMPACTFRAMEWORK
internal readonly object syncRoot = new object();
#endif
///////////////////////////////////////////////////////////////////////
public static implicit operator IntPtr(SQLiteConnectionHandle db)
{
if (db != null)
{
#if PLATFORM_COMPACTFRAMEWORK
lock (db.syncRoot)
#endif
................................................................................
}
}
return IntPtr.Zero;
}
///////////////////////////////////////////////////////////////////////
internal SQLiteConnectionHandle(IntPtr db)
: this()
{
#if PLATFORM_COMPACTFRAMEWORK
lock (syncRoot)
#endif
{
SetHandle(db);
}
}
///////////////////////////////////////////////////////////////////////
private SQLiteConnectionHandle()
: base(IntPtr.Zero)
{
#if COUNT_HANDLE
Interlocked.Increment(
ref UnsafeNativeMethods.connectionCount);
#endif
}
///////////////////////////////////////////////////////////////////////
protected override bool ReleaseHandle()
{
try
{
#if !PLATFORM_COMPACTFRAMEWORK
IntPtr localHandle = Interlocked.Exchange(
ref handle, IntPtr.Zero);
#if SQLITE_STANDARD
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#if !PLATFORM_COMPACTFRAMEWORK
[DllImport(SQLITE_DLL, CallingConvention = CallingConvention.Cdecl)]
#else
[DllImport(SQLITE_DLL)]
#endif
internal static extern int sqlite3_backup_pagecount(IntPtr backup);
#if !PLATFORM_COMPACTFRAMEWORK
[UnmanagedFunctionPointer(CallingConvention.Cdecl)]
public delegate void xDestroyModule(IntPtr pClientData);
#endif
#if !PLATFORM_COMPACTFRAMEWORK
[DllImport(SQLITE_DLL, CallingConvention = CallingConvention.Cdecl)]
#else
[DllImport(SQLITE_DLL)]
#endif
internal static extern SQLiteErrorCode sqlite3_create_module_v2(
IntPtr db,
IntPtr name,
IntPtr pModule,
IntPtr pClientData,
#if !PLATFORM_COMPACTFRAMEWORK
xDestroyModule xDestroy
#else
IntPtr xDestroy
#endif
);
#if !PLATFORM_COMPACTFRAMEWORK
[DllImport(SQLITE_DLL, CallingConvention = CallingConvention.Cdecl)]
#else
[DllImport(SQLITE_DLL)]
#endif
internal static extern SQLiteErrorCode sqlite3_declare_vtab(IntPtr db, IntPtr zSQL);
#if !PLATFORM_COMPACTFRAMEWORK
[DllImport(SQLITE_DLL, CallingConvention = CallingConvention.Cdecl)]
#else
[DllImport(SQLITE_DLL)]
#endif
internal static extern IntPtr sqlite3_mprintf(IntPtr format, __arglist);
#endregion
}
#if PLATFORM_COMPACTFRAMEWORK
internal abstract class CriticalHandle : IDisposable
{
private bool _isClosed;
................................................................................
#if PLATFORM_COMPACTFRAMEWORK
internal readonly object syncRoot = new object();
#endif
///////////////////////////////////////////////////////////////////////
private bool ownHandle;
///////////////////////////////////////////////////////////////////////
public static implicit operator IntPtr(SQLiteConnectionHandle db)
{
if (db != null)
{
#if PLATFORM_COMPACTFRAMEWORK
lock (db.syncRoot)
#endif
................................................................................
}
}
return IntPtr.Zero;
}
///////////////////////////////////////////////////////////////////////
internal SQLiteConnectionHandle(IntPtr db, bool ownHandle)
: this(ownHandle)
{
#if PLATFORM_COMPACTFRAMEWORK
lock (syncRoot)
#endif
{
this.ownHandle = ownHandle;
SetHandle(db);
}
}
///////////////////////////////////////////////////////////////////////
private SQLiteConnectionHandle(bool ownHandle)
: base(IntPtr.Zero)
{
#if COUNT_HANDLE
if (ownHandle)
Interlocked.Increment(ref UnsafeNativeMethods.connectionCount);
#endif
}
///////////////////////////////////////////////////////////////////////
protected override bool ReleaseHandle()
{
#if PLATFORM_COMPACTFRAMEWORK
lock (syncRoot)
#endif
{
if (!ownHandle) return true;
}
try
{
#if !PLATFORM_COMPACTFRAMEWORK
IntPtr localHandle = Interlocked.Exchange(
ref handle, IntPtr.Zero);
#if SQLITE_STANDARD
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