Esempio n. 1
0
        internal override void Open(string strFilename, SQLiteOpenFlagsEnum flags, int maxPoolSize, bool usePool)
        {
            if (_sql != null)
            {
                return;
            }

            _usePool = usePool;
            if (usePool)
            {
                _fileName = strFilename;
                _sql      = SQLiteConnectionPool.Remove(strFilename, maxPoolSize, out _poolVersion);
            }

            if (_sql == null)
            {
                IntPtr db;

#if !SQLITE_STANDARD
                int n = UnsafeNativeMethods.sqlite3_open_interop(ToUTF8(strFilename), (int)flags, out db);
#else
                int n = UnsafeNativeMethods.sqlite3_open_v2(ToUTF8(strFilename), out db, (int)flags, IntPtr.Zero);
#endif
                if (n > 0)
                {
                    throw new SQLiteException(n, null);
                }

                _sql = db;
            }
            // 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);
            SetTimeout(0);
        }
Esempio n. 2
0
        internal override void Open(string strFilename, SQLiteConnectionFlags connectionFlags, SQLiteOpenFlagsEnum openFlags, int maxPoolSize, bool usePool)
        {
            if (_sql != null)
            {
                return;
            }

            _usePool  = usePool;
            _fileName = strFilename;

            if (usePool)
            {
                _sql = SQLiteConnectionPool.Remove(strFilename, maxPoolSize, out _poolVersion);

#if DEBUG && !NET_COMPACT_20
                Trace.WriteLine(String.Format("Open (Pool): {0}", (_sql != null) ? _sql.ToString() : "<null>"));
#endif
            }

            if (_sql == null)
            {
                IntPtr db;

#if !SQLITE_STANDARD
                int n = UnsafeNativeMethods.sqlite3_open16_interop(ToUTF8(strFilename), (int)openFlags, out db);
#else
                if ((openFlags & SQLiteOpenFlagsEnum.Create) == 0 && System.IO.File.Exists(strFilename) == false)
                {
                    throw new SQLiteException((int)SQLiteErrorCode.CantOpen, strFilename);
                }

                int n = UnsafeNativeMethods.sqlite3_open16(strFilename, out db);
#endif

#if DEBUG && !NET_COMPACT_20
                Trace.WriteLine(String.Format("Open: {0}", db));
#endif

                if (n > 0)
                {
                    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);
        }
Esempio n. 3
0
        internal override void Open(string strFilename, SQLiteConnectionFlags connectionFlags, SQLiteOpenFlagsEnum openFlags, int maxPoolSize, bool usePool)
        {
            if (_sql != null)
            {
                return;
            }

            _usePool = usePool;
            if (usePool)
            {
                _fileName = strFilename;
                _sql      = SQLiteConnectionPool.Remove(strFilename, maxPoolSize, out _poolVersion);
            }

            if (_sql == null)
            {
                IntPtr db;

#if !SQLITE_STANDARD
                int n = UnsafeNativeMethods.sqlite3_open16_interop(ToUTF8(strFilename), (int)openFlags, out db);
#else
                if ((openFlags & SQLiteOpenFlagsEnum.Create) == 0 && System.IO.File.Exists(strFilename) == false)
                {
                    throw new SQLiteException((int)SQLiteErrorCode.CantOpen, strFilename);
                }

                int n = UnsafeNativeMethods.sqlite3_open16(strFilename, out db);
#endif

#if DEBUG && !NET_COMPACT_20
                Trace.WriteLine(String.Format("Open: {0}", db));
#endif

                if (n > 0)
                {
                    throw new SQLiteException(n, null);
                }

                _sql = db;
            }
            _functionsArray = SQLiteFunction.BindFunctions(this, connectionFlags);
        }
Esempio n. 4
0
 internal override void Open(string strFilename, SQLiteOpenFlagsEnum flags, int maxPoolSize, bool usePool)
 {
     if (base._sql == null)
     {
         base._usePool = usePool;
         if (usePool)
         {
             base._fileName = strFilename;
             base._sql      = SQLiteConnectionPool.Remove(strFilename, maxPoolSize, out this._poolVersion);
         }
         if (base._sql == null)
         {
             IntPtr ptr;
             int    errorCode = UnsafeNativeMethods.sqlite3_open16_interop(SQLiteConvert.ToUTF8(strFilename), (int)flags, out ptr);
             if (errorCode > 0)
             {
                 throw new SQLiteException(errorCode, null);
             }
             base._sql = ptr;
         }
         base._functionsArray = SQLiteFunction.BindFunctions(this);
     }
 }
Esempio n. 5
0
        internal override void Open(string strFilename, SQLiteConnectionFlags connectionFlags, SQLiteOpenFlagsEnum openFlags, int maxPoolSize, bool usePool)
        {
            //
            // NOTE: If the database connection is currently open, attempt to
            //       close it now.  This must be done because the file name or
            //       other parameters that may impact the underlying database
            //       connection may have changed.
            //
            if (_sql != null)
            {
                Close(true);
            }

            //
            // NOTE: If the connection was not closed successfully, throw an
            //       exception now.
            //
            if (_sql != null)
            {
                throw new SQLiteException("connection handle is still active");
            }

            _usePool  = usePool;
            _fileName = strFilename;

            if (usePool)
            {
                _sql = SQLiteConnectionPool.Remove(strFilename, maxPoolSize, out _poolVersion);

#if !NET_COMPACT_20 && TRACE_CONNECTION
                Trace.WriteLine(String.Format("Open16 (Pool): {0}", (_sql != null) ? _sql.ToString() : "<null>"));
#endif
            }

            if (_sql == null)
            {
                try
                {
                    // do nothing.
                }
                finally /* NOTE: Thread.Abort() protection. */
                {
                    IntPtr          db = IntPtr.Zero;
                    SQLiteErrorCode n;

#if !SQLITE_STANDARD
                    if ((connectionFlags & SQLiteConnectionFlags.NoExtensionFunctions) != SQLiteConnectionFlags.NoExtensionFunctions)
                    {
                        n = UnsafeNativeMethods.sqlite3_open16_interop(ToUTF8(strFilename), openFlags, ref db);
                    }
                    else
#endif
                    {
                        //
                        // NOTE: This flag check is designed to enforce the constraint that opening
                        //       a database file that does not already exist requires specifying the
                        //       "Create" flag, even when a native API is used that does not accept
                        //       a flags parameter.
                        //
                        if (((openFlags & SQLiteOpenFlagsEnum.Create) != SQLiteOpenFlagsEnum.Create) && !File.Exists(strFilename))
                        {
                            throw new SQLiteException(SQLiteErrorCode.CantOpen, strFilename);
                        }

                        n = UnsafeNativeMethods.sqlite3_open16(strFilename, ref db);
                    }

#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, true);
                }
                lock (_sql) { /* HACK: Force the SyncBlock to be "created" now. */ }

                SQLiteConnection.OnChanged(null, new ConnectionEventArgs(
                                               SQLiteConnectionEventType.NewCriticalHandle, null, null,
                                               null, null, _sql, strFilename, new object[] { strFilename,
                                                                                             connectionFlags, openFlags, maxPoolSize, usePool }));
            }

            // Bind functions to this connection.  If any previous functions of the same name
            // were already bound, then the new bindings replace the old.
            if ((connectionFlags & SQLiteConnectionFlags.NoBindFunctions) != SQLiteConnectionFlags.NoBindFunctions)
            {
                if (_functions == null)
                {
                    _functions = new List <SQLiteFunction>();
                }

                _functions.AddRange(new List <SQLiteFunction>(SQLiteFunction.BindFunctions(this, connectionFlags)));
            }

            SetTimeout(0);
            GC.KeepAlive(_sql);
        }
Esempio n. 6
0
        internal override void Open(string strFilename, string vfsName, SQLiteConnectionFlags connectionFlags, SQLiteOpenFlagsEnum openFlags, int maxPoolSize, bool usePool)
        {
            //
            // NOTE: If the database connection is currently open, attempt to
            //       close it now.  This must be done because the file name or
            //       other parameters that may impact the underlying database
            //       connection may have changed.
            //
            if (_sql != null)
            {
                Close(false);
            }

            //
            // NOTE: If the connection was not closed successfully, throw an
            //       exception now.
            //
            if (_sql != null)
            {
                throw new SQLiteException("connection handle is still active");
            }

            _usePool  = usePool;
            _fileName = strFilename;
            _flags    = connectionFlags;

            if (usePool)
            {
                _sql = SQLiteConnectionPool.Remove(strFilename, maxPoolSize, out _poolVersion);

                SQLiteConnection.OnChanged(null, new ConnectionEventArgs(
                                               SQLiteConnectionEventType.OpenedFromPool, null, null,
                                               null, null, _sql, strFilename, new object[] {
                    typeof(SQLite3_UTF16), strFilename, vfsName,
                    connectionFlags, openFlags, maxPoolSize, usePool,
                    _poolVersion
                }));

#if !NET_COMPACT_20 && TRACE_CONNECTION
                Trace.WriteLine(HelperMethods.StringFormat(
                                    CultureInfo.CurrentCulture,
                                    "Open16 (Pool): {0}",
                                    HandleToString()));
#endif
            }

            if (_sql == null)
            {
                try
                {
                    // do nothing.
                }
                finally /* NOTE: Thread.Abort() protection. */
                {
                    IntPtr          db = IntPtr.Zero;
                    SQLiteErrorCode n;

                    int extFuncs = HelperMethods.HasFlags(connectionFlags, SQLiteConnectionFlags.NoExtensionFunctions) ? 0 : 1;

#if !SQLITE_STANDARD
                    if ((vfsName != null) || (extFuncs != 0))
                    {
                        n = UnsafeNativeMethods.sqlite3_open16_interop(ToUTF8(strFilename), ToUTF8(vfsName), openFlags, extFuncs, ref db);
                    }
                    else
#endif
                    {
                        //
                        // NOTE: This flag check is designed to enforce the constraint that opening
                        //       a database file that does not already exist requires specifying the
                        //       "Create" flag, even when a native API is used that does not accept
                        //       a flags parameter.
                        //
                        if (((openFlags & SQLiteOpenFlagsEnum.Create) != SQLiteOpenFlagsEnum.Create) && !File.Exists(strFilename))
                        {
                            throw new SQLiteException(SQLiteErrorCode.CantOpen, strFilename);
                        }

                        if (vfsName != null)
                        {
                            throw new SQLiteException(SQLiteErrorCode.CantOpen, HelperMethods.StringFormat(
                                                          CultureInfo.CurrentCulture,
                                                          "cannot open using UTF-16 and VFS \"{0}\": need interop assembly", vfsName));
                        }

                        n = UnsafeNativeMethods.sqlite3_open16(strFilename, ref db);
                    }

#if !NET_COMPACT_20 && TRACE_CONNECTION
                    Trace.WriteLine(HelperMethods.StringFormat(
                                        CultureInfo.CurrentCulture,
                                        "Open16: {0}", db));
#endif

                    if (n != SQLiteErrorCode.Ok)
                    {
                        throw new SQLiteException(n, null);
                    }
                    _sql = new SQLiteConnectionHandle(db, true);
                }
                lock (_sql) { /* HACK: Force the SyncBlock to be "created" now. */ }

                SQLiteConnection.OnChanged(null, new ConnectionEventArgs(
                                               SQLiteConnectionEventType.NewCriticalHandle, null,
                                               null, null, null, _sql, strFilename, new object[] {
                    typeof(SQLite3_UTF16), strFilename, vfsName,
                    connectionFlags, openFlags, maxPoolSize, usePool
                }));
            }

            // Bind functions to this connection.  If any previous functions of the same name
            // were already bound, then the new bindings replace the old.
            if (!HelperMethods.HasFlags(connectionFlags, SQLiteConnectionFlags.NoBindFunctions))
            {
                if (_functions == null)
                {
                    _functions = new Dictionary <SQLiteFunctionAttribute, SQLiteFunction>();
                }

                foreach (KeyValuePair <SQLiteFunctionAttribute, SQLiteFunction> pair
                         in SQLiteFunction.BindFunctions(this, connectionFlags))
                {
                    _functions[pair.Key] = pair.Value;
                }
            }

            SetTimeout(0);
            GC.KeepAlive(_sql);
        }
Esempio n. 7
0
        internal override void Open(string strFilename, SQLiteConnectionFlags connectionFlags, SQLiteOpenFlagsEnum openFlags, int maxPoolSize, bool usePool)
        {
            if (_sql != null)
            {
                return;
            }

            _usePool  = usePool;
            _fileName = strFilename;

            if (usePool)
            {
                _sql = SQLiteConnectionPool.Remove(strFilename, maxPoolSize, out _poolVersion);

#if !NET_COMPACT_20 && TRACE_CONNECTION
                Trace.WriteLine(String.Format("Open16 (Pool): {0}", (_sql != null) ? _sql.ToString() : "<null>"));
#endif
            }

            if (_sql == null)
            {
                try
                {
                    // do nothing.
                }
                finally /* NOTE: Thread.Abort() protection. */
                {
                    IntPtr          db;
                    SQLiteErrorCode n;

#if !SQLITE_STANDARD
                    if ((connectionFlags & SQLiteConnectionFlags.NoExtensionFunctions) != SQLiteConnectionFlags.NoExtensionFunctions)
                    {
                        n = UnsafeNativeMethods.sqlite3_open16_interop(ToUTF8(strFilename), openFlags, out db);
                    }
                    else
#endif
                    {
                        //
                        // NOTE: This flag check is designed to enforce the constraint that opening
                        //       a database file that does not already exist requires specifying the
                        //       "Create" flag, even when a native API is used that does not accept
                        //       a flags parameter.
                        //
                        if (((openFlags & SQLiteOpenFlagsEnum.Create) != SQLiteOpenFlagsEnum.Create) && !File.Exists(strFilename))
                        {
                            throw new SQLiteException(SQLiteErrorCode.CantOpen, strFilename);
                        }

                        n = UnsafeNativeMethods.sqlite3_open16(strFilename, out db);
                    }

#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);
        }