bool Parse_PrepareOk_Header(MySqlStreamReader reader) { //this is first step *** if (!reader.Ensure(PACKET_HEADER_LENGTH + 1)) { return(_needMoreData = true); } _currentHeader = reader.ReadPacketHeader(); byte type = reader.PeekByte(); switch (type) { case ERROR_CODE: _parsingState = PrepareResponseParseState.Error_Content; break; case EOF_CODE: case OK_CODE: _parsingState = PrepareResponseParseState.OkPrepare_Content; break; default: throw new NotSupportedException("Packet type don't match!!"); } return(false); }
void StoreBuffer(MySqlStreamReader reader, int length) { if (ms == null) { ms = new MemoryStream(); //buffer data to this } ms.Write(reader.ReadBuffer(length), 0, length); //reader.SkipForward(length); // throw new NotSupportedException(); ////TODO: review buffer mx here **** //byte[] dataTemp = _mysqlStreamReader.ReadBuffer((int)length); //int existingLargeDataBufferLen = (largeDataBuffer == null) ? // 0 : // largeDataBuffer.Length; //if (existingLargeDataBufferLen > 0) //{ // //merge ... // byte[] newData = new byte[existingLargeDataBufferLen + dataTemp.Length]; // Buffer.BlockCopy(largeDataBuffer, 0, newData, 0, largeDataBuffer.Length); // Buffer.BlockCopy(dataTemp, 0, newData, largeDataBuffer.Length, dataTemp.Length); // largeDataBuffer = newData; //} //else //{ // largeDataBuffer = dataTemp; //} }
bool Parse_Ok_Content(MySqlStreamReader reader) { if (!reader.Ensure(_currentHeader.ContentLength)) //check if length is enough to parse { return(_needMoreData = true); } if (_currentMultResultSet != null) { //in multiple result set mode *** //see https://dev.mysql.com/doc/internals/en/multi-resultset.html // var okPacket = new OkPacket(_currentHeader, _isProtocol41); okPacket.ParsePacketContent(reader); _parseResult = _currentMultResultSet; _parsingState = ResultPacketState.ShouldEnd; //* // _currentMultResultSet = null; //reset } else { var okPacket = new OkPacket(_currentHeader, _isProtocol41); okPacket.ParsePacketContent(reader); _parseResult = new MySqlOkResult(okPacket); _parsingState = ResultPacketState.ShouldEnd; //* } return(true); }
//---------------------------------------------------- bool Parse_BindingField_Header(MySqlStreamReader reader) { if (!reader.Ensure(PACKET_HEADER_LENGTH + 1)) { return(_needMoreData = true); //need more } _currentHeader = reader.ReadPacketHeader(); byte type = reader.PeekByte(); switch (type) { case ERROR_CODE: _parsingState = PrepareResponseParseState.Error_Content; break; case EOF_CODE: _parsingState = PrepareResponseParseState.BindingField_EOF; break; default: _parsingState = PrepareResponseParseState.BindingField_Content; break; } return(false); }
bool Parse_Field_Content(MySqlStreamReader reader) { if (!reader.Ensure(_currentHeader.ContentLength)) //check if length is enough to parse { #if DEBUG reader.dbugMonitorData1 = true; #endif return(_needMoreData = true); } #if DEBUG if (reader.dbugMonitorData1) { } #endif var fieldPacket = new FieldPacket(_currentHeader, _isProtocol41); fieldPacket.ParsePacketContent(reader); fieldPacket.FieldIndex = _tableHeader.ColumnCount; //set this before add to field list _tableHeader.AddField(fieldPacket); #if DEBUG //TODO:review here if (fieldPacket.dbugFailure) { throw new NotSupportedException(); } #endif //next state => field header of next field _parsingState = ResultPacketState.Field_Header; return(false); }
bool Parse_Field_Header(MySqlStreamReader reader) { if (!reader.Ensure(PACKET_HEADER_LENGTH + 1)) //check if length is enough to parse { return(_needMoreData = true); } _currentHeader = reader.ReadPacketHeader(); byte packetType = reader.PeekByte(); switch (packetType) { case ERROR_CODE: _parsingState = ResultPacketState.Error_Content; break; case EOF_CODE: case OK_CODE: _parsingState = ResultPacketState.Field_EOF; break; default: //next state => field content of this field _parsingState = ResultPacketState.Field_Content; break; } return(false); }
public override void Parse(MySqlStreamReader reader) { _finalResult = null; while (!StepParse(reader)) { ; } //StepParse() return true if //1. need more data or //2. finish }
bool Parse_Field_EOF(MySqlStreamReader reader) { if (!reader.Ensure(_currentHeader.ContentLength)) //check if length is enough to parse { return(_needMoreData = true); } var eofPacket = new EofPacket(_currentHeader, this._isProtocol41); eofPacket.ParsePacketContent(reader); _parsingState = ResultPacketState.Row_Header; return(false); }
public override void Parse(MySqlStreamReader reader) { _finalResult = null; //1.create connection frame //_writer.Reset(); PacketHeader header = reader.ReadPacketHeader(); _handshake = new HandshakePacket(header); //check if _handshake.ParsePacketContent(reader); _finalResult = new MySqlHandshakeResult(_handshake); }
bool Parse_Error_Content(MySqlStreamReader reader) { if (!reader.Ensure(_currentHeader.ContentLength)) //check if length is enough to parse { return(_needMoreData = true); } var errPacket = new ErrPacket(_currentHeader); errPacket.ParsePacketContent(reader); //------------------------ _parseResult = new MySqlErrorResult(errPacket); _parsingState = ResultPacketState.ShouldEnd; return(true);//finished }
bool Parse_ColumnField_Content(MySqlStreamReader reader) { if (!reader.Ensure(_currentHeader.ContentLength)) { return(_needMoreData = true); } var field = new FieldPacket(_currentHeader, _isProtocol41); field.ParsePacketContent(reader); field.FieldIndex = _tableHeader.ColumnCount; //set this before add to field list _tableHeader.AddField(field); //back to field header _parsingState = PrepareResponseParseState.ColumnField_Header; return(false); }
//---------------------------------------------------- bool ParseErrorPacket(MySqlStreamReader reader) { if (!reader.Ensure(_currentHeader.ContentLength)) { return(_needMoreData = true); } var errPacket = new ErrPacket(_currentHeader); errPacket.ParsePacketContent(reader); // _finalResult = new MySqlErrorResult(errPacket); _parsingState = PrepareResponseParseState.ShouldEnd; reader.Reset(); return(true); }
/// <summary> /// parse header part of the result set /// </summary> bool Parse_Header_Content(MySqlStreamReader reader) { if (!reader.Ensure(_currentHeader.ContentLength)) { return(_needMoreData = true); } //can parse var resultSetHeaderPacket = new ResultSetHeaderPacket(_currentHeader); resultSetHeaderPacket.ParsePacketContent(reader); _tableHeader = new TableHeader(this.ForPrepareResult); _parsingState = ResultPacketState.Field_Header; _rows = new List <DataRowPacket>(); return(false); }
bool Parse_ColumnField_EOF(MySqlStreamReader reader) { if (!reader.Ensure(_currentHeader.ContentLength)) { return(_needMoreData = true); } var eofPacket = new EofPacket(_currentHeader, this._isProtocol41); eofPacket.ParsePacketContent(reader); // _finalResult = new MySqlPrepareResponseResult(_okPrepare, _tableHeader); _parsingState = PrepareResponseParseState.ShouldEnd; reader.Reset(); return(true);//finish }
bool Parse_Row_EOF(MySqlStreamReader reader) { if (!reader.Ensure(_currentHeader.ContentLength)) //check if length is enough to parse { return(_needMoreData = true); } //finish all of each row var eofPacket = new EofPacket(_currentHeader, this._isProtocol41); eofPacket.ParsePacketContent(reader); if (((eofPacket.serverStatus & (int)MySqlServerStatus.SERVER_MORE_RESULTS_EXISTS)) != 0) { var tableResult = new MySqlTableResult(_tableHeader, _rows); _rows = null;//reset //more than one result table //mu if (_currentMultResultSet != null) { _currentMultResultSet.AddTableResult(tableResult); } else { //first time _currentMultResultSet = new MySqlMultiTableResult(); _currentMultResultSet.AddTableResult(tableResult);; //not set _parseResult*** because this not finish } //-------------------- //see: https://dev.mysql.com/doc/internals/en/multi-resultset.html //may has more than 1 result _parsingState = ResultPacketState.Header_Header; return(false); } else { //after finish we create a result table //the move rows into the table _parseResult = new MySqlTableResult(_tableHeader, _rows); //not link to the rows anymore _rows = null; _currentMultResultSet = null; _parsingState = ResultPacketState.ShouldEnd; //*** return(true); //end } }
public override void Parse(MySqlStreamReader reader) { //reset final result _parseResult = null; while (!StepParse(reader)) { ; } //StepParse() return true if //1. need more data or //2. finish reader.ClearReadBuffer(); if (_needMoreData) { //at any state if need more buffer //then stop parsing and return if (_supportPartialRelease) { if (_rows != null && _rows.Count > 0) { _parseResult = new MySqlTableResult(_tableHeader, _rows.ToArray()) { HasFollower = true }; } if (_generateResultMode) { //generate new result #if DEBUG if (_rows != null) { } #endif _rows.Clear(); } } } else if (_parsingState == ResultPacketState.ShouldEnd) { //reset reader.Reset(); _parsingState = ResultPacketState.Header_Header; } }
bool Parse_Row_Header(MySqlStreamReader reader) { if (!reader.Ensure(PACKET_HEADER_LENGTH + 1)) { return(_needMoreData = true); } _currentHeader = reader.ReadPacketHeader(); if (_currentHeader.ContentLength == Packet.MAX_PACKET_LENGTH) { //need more than 1 packet for row content _needMoreThan1Packet = true; _parsingState = ResultPacketState.Row_Content; return(false); } else if (_currentHeader.ContentLength > Packet.MAX_PACKET_LENGTH) { throw new NotSupportedException("???"); } if (_needMoreThan1Packet) { //switch to row content _parsingState = ResultPacketState.Row_Content; } else { byte packetType = reader.PeekByte(); switch (packetType) { case ERROR_CODE: _parsingState = ResultPacketState.Error_Content; break; case EOF_CODE: //0x00 or 0xfe the OK packet header _parsingState = ResultPacketState.Row_EOF; break; default: _parsingState = ResultPacketState.Row_Content; break; } } return(false); }
bool StepParse(MySqlStreamReader reader) { //reset everytime before actual parse _needMoreData = false; switch (_parsingState) { case ResultPacketState.Header_Header: return(Parse_Header_Header(reader)); case ResultPacketState.Header_Content: return(Parse_Header_Content(reader)); //--------------------------------------- case ResultPacketState.Field_Header: return(Parse_Field_Header(reader)); case ResultPacketState.Field_Content: return(Parse_Field_Content(reader)); case ResultPacketState.Field_EOF: return(Parse_Field_EOF(reader)); //--------------------------------------- case ResultPacketState.Row_Header: return(Parse_Row_Header(reader)); case ResultPacketState.Row_Content: return(Parse_Row_Content(reader)); case ResultPacketState.Row_EOF: return(Parse_Row_EOF(reader)); //--------------------------------------- case ResultPacketState.Error_Content: return(Parse_Error_Content(reader)); case ResultPacketState.Ok_Content: return(Parse_Ok_Content(reader)); default: throw new Exception("unknown step"); } }
/// <summary> /// return ***true*** if finish or need more data /// </summary> /// <param name="reader"></param> /// <returns></returns> bool StepParse(MySqlStreamReader reader) { switch (_parsingState) { case PrepareResponseParseState.OkPrepare_Header: return(Parse_PrepareOk_Header(reader)); case PrepareResponseParseState.OkPrepare_Content: return(Parse_PrepareOk_Content(reader)); //------------------------------------------------ case PrepareResponseParseState.BindingField_Header: return(Parse_BindingField_Header(reader)); case PrepareResponseParseState.BindingField_Content: return(Parse_BindingField_Content(reader)); case PrepareResponseParseState.BindingField_EOF: return(Parse_BindingField_EOF(reader)); //------------------------------------------------ case PrepareResponseParseState.ColumnField_Header: return(Parse_ColumnField_Header(reader)); case PrepareResponseParseState.ColumnField_Content: return(Parse_ColumnField_Content(reader)); case PrepareResponseParseState.ColumnField_EOF: return(Parse_ColumnField_EOF(reader)); //------------------------------------------------ case PrepareResponseParseState.ShouldEnd: reader.Reset(); return(true); case PrepareResponseParseState.Error_Content: return(ParseErrorPacket(reader)); default: throw new Exception("unknown step?"); } }
bool Parse_BindingField_EOF(MySqlStreamReader reader) { if (!reader.Ensure(_currentHeader.ContentLength)) { return(_needMoreData = true); } var eofPacket = new EofPacket(_currentHeader, _isProtocol41); eofPacket.ParsePacketContent(reader); if (_okPrepare.num_columns > 0) { _parsingState = PrepareResponseParseState.ColumnField_Header; return(false); } else { _finalResult = new MySqlPrepareResponseResult(_okPrepare, _tableHeader); _parsingState = PrepareResponseParseState.ShouldEnd; reader.Reset(); return(true); } }
bool Parse_PrepareOk_Content(MySqlStreamReader reader) { if (!reader.Ensure(_currentHeader.ContentLength)) { return(_needMoreData = true); } var okPrepare = new OkPrepareStmtPacket(_currentHeader); okPrepare.ParsePacketContent(reader); _okPrepare = okPrepare; //---------------------------------------------------- _tableHeader = new TableHeader(true); //---------------------------------------------------- //*** 3 possible way after read prepare ok header*** if (okPrepare.num_params == 0) { //if prepare stmt dosn't have binding parameters if (okPrepare.num_columns > 0) { //has some column _parsingState = PrepareResponseParseState.ColumnField_Header; } else { _finalResult = new MySqlPrepareResponseResult(okPrepare, _tableHeader); _parsingState = PrepareResponseParseState.ShouldEnd; reader.Reset(); return(true); //finish } } else { _parsingState = PrepareResponseParseState.BindingField_Header; } return(false); }
public override void ParsePacketContent(MySqlStreamReader r) { throw new NotImplementedException(); }
public override void ParsePacketContent(MySqlStreamReader r) { throw new NotImplementedException(); //ParsePacketHeader(parser); //this.command = parser.ParseByte(); }
public override void ParsePacketContent(MySqlStreamReader r) { if (protocol41) { clientFlags = r.U4(); //4 maxPacketSize = r.U4(); //4 charsetNumber = r.ReadByte(); r.ReadFiller(23); user = r.ReadNullTerminatedString(); scrambleBuff = r.ReadLengthCodedBuffer(); database = r.ReadNullTerminatedString(); } else { clientFlags = r.U2();//2 maxPacketSize = r.U3();//3 user = r.ReadNullTerminatedString(); scrambleBuff = r.ReadBuffer(8); database = r.ReadLengthCodedString(); } }
public override void ParsePacketContent(MySqlStreamReader r) { _fieldCount = r.ReadLengthCodedNumber(); if (r.ReachedPacketEnd()) { return; } if (_fieldCount == 0) { _extraStr = r.ReadPacketTerminatedString(); } else { _extraNumber = r.ReadLengthCodedNumber(); _extraStr = r.ReadPacketTerminatedString();//null; } }
public override void ParsePacketContent(MySqlStreamReader r) { _fieldCount = r.ReadByte(); affectedRows = r.ReadLengthCodedNumber(); insertId = r.ReadLengthCodedNumber(); if (_protocol41) { _serverStatus = r.U2(); _warningCount = r.U2(); } //TODO: review here again //https://dev.mysql.com/doc/internals/en/packet-OK_Packet.html _message = r.ReadPacketTerminatedString(); //var m = this.message.match(/\schanged:\s * (\d +) / i); //if (m !== null) //{ // this.changedRows = parseInt(m[1], 10); //} }
bool Parse_Row_Content(MySqlStreamReader reader) { if (!reader.Ensure(_currentHeader.ContentLength)) { return _needMoreData = true; } if (_currentHeader.ContentLength > Packet.MAX_PACKET_LENGTH) { throw new NotSupportedException("???"); } else if (_currentHeader.ContentLength >= Packet.MAX_PACKET_LENGTH) { //can't complete in this round //so store data into temp extra large buffer //and set isLargeData= true StoreBuffer(reader, (int)_currentHeader.ContentLength); isLargeData = true; //we still in the row content state _parsingState = ResultPacketState.Row_Header; return false; } //-------------------------------- if (_generateResultMode) { //this is normal mode (opposite to JustFlushOutMode) //in this mode we parse packet content //and add it to the output rows //---------------------------------- //in this version row buffer len must < int.MaxLength if (_currentHeader.ContentLength > int.MaxValue) { throw new NotSupportedException("not support this length"); } //------------------------------------ if (isLargeData) { if (ms == null) { //it should not be null here throw new NotSupportedException();//? } ms.Write(reader.ReadBuffer((int)_currentHeader.ContentLength), 0, (int)_currentHeader.ContentLength); _rows.Add(new DataRowPacket(_currentHeader, ms.ToArray())); ms.Close(); ms.Dispose(); ms = null; isLargeData = false; //reset } else { _rows.Add(new DataRowPacket(_currentHeader, reader.ReadBuffer((int)_currentHeader.ContentLength))); } } else { //just flush data*** //not create data row if (_currentHeader.ContentLength > int.MaxValue) { throw new Exception("not support content length> int.MaxValue"); } reader.SkipForward((int)_currentHeader.ContentLength); } //----------------------------------------------------------------------- //after this row, next state = next row header _parsingState = ResultPacketState.Row_Header; return false; }
public abstract void Parse(MySqlStreamReader reader);
bool Parse_PrepareOk_Content(MySqlStreamReader reader) { if (!reader.Ensure(_currentHeader.ContentLength)) { return _needMoreData = true; } var okPrepare = new OkPrepareStmtPacket(_currentHeader); okPrepare.ParsePacketContent(reader); _okPrepare = okPrepare; //---------------------------------------------------- _tableHeader = new TableHeader(true); //---------------------------------------------------- //*** 3 possible way after read prepare ok header*** if (okPrepare.num_params == 0) { //if prepare stmt dosn't have binding parameters if (okPrepare.num_columns > 0) { //has some column _parsingState = PrepareResponseParseState.ColumnField_Header; } else { _finalResult = new MySqlPrepareResponseResult(okPrepare, _tableHeader); _parsingState = PrepareResponseParseState.ShouldEnd; reader.Reset(); return true; //finish } } else { _parsingState = PrepareResponseParseState.BindingField_Header; } return false; }
bool Parse_Row_Header(MySqlStreamReader reader) { if (!reader.Ensure(PACKET_HEADER_LENGTH + 1)) { return _needMoreData = true; } _currentHeader = reader.ReadPacketHeader(); if (_currentHeader.ContentLength == Packet.MAX_PACKET_LENGTH) { //need more than 1 packet for row content _parsingState = ResultPacketState.Row_Content; return false; } else if (_currentHeader.ContentLength > Packet.MAX_PACKET_LENGTH) { throw new NotSupportedException("???"); } byte packetType = reader.PeekByte(); switch (packetType) { case ERROR_CODE: _parsingState = ResultPacketState.Error_Content; break; case EOF_CODE://0x00 or 0xfe the OK packet header _parsingState = ResultPacketState.Row_EOF; break; default: _parsingState = ResultPacketState.Row_Content; break; } return false; }
public override void ParsePacketContent(MySqlStreamReader r) { _fieldCount = r.ReadByte(); _errno = r.U2();//2 if (r.PeekByte() == 0x23) { _sqlStateMarker = r.ReadChar(); _sqlState = r.ReadString(5); } message = r.ReadPacketTerminatedString(); #if DEBUG throw new Exception(_sqlStateMarker + _sqlState + " " + message); #endif }
//---------------------------------------------------- bool Parse_ColumnField_Header(MySqlStreamReader reader) { if (!reader.Ensure(PACKET_HEADER_LENGTH + 1)) { return _needMoreData = true; } _currentHeader = reader.ReadPacketHeader(); byte type = reader.PeekByte();//1 switch (type) { case ERROR_CODE: _parsingState = PrepareResponseParseState.Error_Content; break; case EOF_CODE: //? _parsingState = PrepareResponseParseState.ColumnField_EOF; break; default: _parsingState = PrepareResponseParseState.ColumnField_Content; break; } return false; }
bool Parse_ColumnField_Content(MySqlStreamReader reader) { if (!reader.Ensure(_currentHeader.ContentLength)) { return _needMoreData = true; } var field = new FieldPacket(_currentHeader, _isProtocol41); field.ParsePacketContent(reader); field.FieldIndex = _tableHeader.ColumnCount; //set this before add to field list _tableHeader.AddField(field); //back to field header _parsingState = PrepareResponseParseState.ColumnField_Header; return false; }
bool Parse_ColumnField_EOF(MySqlStreamReader reader) { if (!reader.Ensure(_currentHeader.ContentLength)) { return _needMoreData = true; } var eofPacket = new EofPacket(_currentHeader, this._isProtocol41); eofPacket.ParsePacketContent(reader); // _finalResult = new MySqlPrepareResponseResult(_okPrepare, _tableHeader); _parsingState = PrepareResponseParseState.ShouldEnd; reader.Reset(); return true;//finish }
//---------------------------------------------------- bool ParseErrorPacket(MySqlStreamReader reader) { if (!reader.Ensure(_currentHeader.ContentLength)) { return _needMoreData = true; } var errPacket = new ErrPacket(_currentHeader); errPacket.ParsePacketContent(reader); // _finalResult = new MySqlErrorResult(errPacket); _parsingState = PrepareResponseParseState.ShouldEnd; reader.Reset(); return true; }
void StoreBuffer(MySqlStreamReader reader, int length) { if (ms == null) { ms = new MemoryStream(); //buffer data to this } ms.Write(reader.ReadBuffer(length), 0, length); //reader.SkipForward(length); // throw new NotSupportedException(); ////TODO: review buffer mx here **** //byte[] dataTemp = _mysqlStreamReader.ReadBuffer((int)length); //int existingLargeDataBufferLen = (largeDataBuffer == null) ? // 0 : // largeDataBuffer.Length; //if (existingLargeDataBufferLen > 0) //{ // //merge ... // byte[] newData = new byte[existingLargeDataBufferLen + dataTemp.Length]; // Buffer.BlockCopy(largeDataBuffer, 0, newData, 0, largeDataBuffer.Length); // Buffer.BlockCopy(dataTemp, 0, newData, largeDataBuffer.Length, dataTemp.Length); // largeDataBuffer = newData; //} //else //{ // largeDataBuffer = dataTemp; //} }
bool Parse_PrepareOk_Header(MySqlStreamReader reader) { //this is first step *** if (!reader.Ensure(PACKET_HEADER_LENGTH + 1)) { return _needMoreData = true; } _currentHeader = reader.ReadPacketHeader(); byte type = reader.PeekByte(); switch (type) { case ERROR_CODE: _parsingState = PrepareResponseParseState.Error_Content; break; case EOF_CODE: case OK_CODE: _parsingState = PrepareResponseParseState.OkPrepare_Content; break; default: throw new NotSupportedException("Packet type don't match!!"); } return false; }
bool Parse_Row_EOF(MySqlStreamReader reader) { if (!reader.Ensure(_currentHeader.ContentLength)) //check if length is enough to parse { return _needMoreData = true; } //finish all of each row var eofPacket = new EofPacket(_currentHeader, this._isProtocol41); eofPacket.ParsePacketContent(reader); if (((eofPacket.serverStatus & (int)MySqlServerStatus.SERVER_MORE_RESULTS_EXISTS)) != 0) { var tableResult = new MySqlTableResult(_tableHeader, _rows); _rows = null;//reset //more than one result table //mu if (_currentMultResultSet != null) { _currentMultResultSet.AddTableResult(tableResult); } else { //first time _currentMultResultSet = new MySqlMultiTableResult(); _currentMultResultSet.AddTableResult(tableResult); ; //not set _parseResult*** because this not finish } //-------------------- //see: https://dev.mysql.com/doc/internals/en/multi-resultset.html //may has more than 1 result _parsingState = ResultPacketState.Header_Header; return false; } else { //after finish we create a result table //the move rows into the table _parseResult = new MySqlTableResult(_tableHeader, _rows); //not link to the rows anymore _rows = null; _currentMultResultSet = null; _parsingState = ResultPacketState.ShouldEnd;//*** return true;//end } }
bool Parse_Row_Content(MySqlStreamReader reader) { if (!reader.Ensure(_currentHeader.ContentLength)) { return(_needMoreData = true); } if (_currentHeader.ContentLength > Packet.MAX_PACKET_LENGTH) { throw new NotSupportedException("???"); } else if (_currentHeader.ContentLength >= Packet.MAX_PACKET_LENGTH) { //can't complete in this round //so store data into temp extra large buffer //and set isLargeData= true StoreBuffer(reader, (int)_currentHeader.ContentLength); isLargeData = true; //we still in the row content state _parsingState = ResultPacketState.Row_Header; return(false); } //-------------------------------- if (_generateResultMode) { //this is normal mode (opposite to JustFlushOutMode) //in this mode we parse packet content //and add it to the output rows //---------------------------------- //in this version row buffer len must < int.MaxLength if (_currentHeader.ContentLength > int.MaxValue) { throw new NotSupportedException("not support this length"); } //------------------------------------ if (isLargeData) { if (ms == null) { //it should not be null here throw new NotSupportedException(); //? } ms.Write(reader.ReadBuffer((int)_currentHeader.ContentLength), 0, (int)_currentHeader.ContentLength); _rows.Add(new DataRowPacket(_currentHeader, ms.ToArray())); #if NET20 ms.Close(); #endif ms.Dispose(); ms = null; isLargeData = false; //reset } else { _rows.Add(new DataRowPacket(_currentHeader, reader.ReadBuffer((int)_currentHeader.ContentLength))); } } else { //just flush data*** //not create data row if (_currentHeader.ContentLength > int.MaxValue) { throw new Exception("not support content length> int.MaxValue"); } reader.SkipForward((int)_currentHeader.ContentLength); } //----------------------------------------------------------------------- //after this row, next state = next row header _parsingState = ResultPacketState.Row_Header; return(false); }
public override void ParsePacketContent(MySqlStreamReader r) { //we already have header *** protocolVersion = r.ReadByte();//1 serverVertion = r.ReadNullTerminatedString(); threadId = r.U4();//4 scrambleBuff1 = r.ReadBuffer(8); filler1 = r.ReadByte(); serverCapabilities1 = r.U2();//2 serverLanguage = r.ReadByte(); serverStatus = r.U2();//2 protocol41 = (serverCapabilities1 & (1 << 9)) > 0; if (protocol41) { serverCapabilities2 = r.U2(); scrambleLength = r.ReadByte(); filler2 = r.ReadBuffer(10); scrambleBuff2 = r.ReadBuffer(12); filler3 = r.ReadByte(); } else { filler2 = r.ReadBuffer(13); } if (r.ReadPosition == r.CurrentInputLength) { return; } pluginData = r.ReadPacketTerminatedString(); var last = pluginData.Length - 1; if (pluginData[last] == '\0') { pluginData = pluginData.Substring(0, last); } }
public abstract void Parse(MySqlStreamReader reader);
public override void ParsePacketContent(MySqlStreamReader r) { _status = r.ReadByte();//alway 0 statement_id = r.ReadUnsigedNumber(4); num_columns = r.ReadUnsigedNumber(2); num_params = r.ReadUnsigedNumber(2); r.ReadFiller(1);//reserved_1 waring_count = r.ReadUnsigedNumber(2); }
/// <summary> /// return ***true*** if finish or need more data /// </summary> /// <param name="reader"></param> /// <returns></returns> bool StepParse(MySqlStreamReader reader) { switch (_parsingState) { case PrepareResponseParseState.OkPrepare_Header: return Parse_PrepareOk_Header(reader); case PrepareResponseParseState.OkPrepare_Content: return Parse_PrepareOk_Content(reader); //------------------------------------------------ case PrepareResponseParseState.BindingField_Header: return Parse_BindingField_Header(reader); case PrepareResponseParseState.BindingField_Content: return Parse_BindingField_Content(reader); case PrepareResponseParseState.BindingField_EOF: return Parse_BindingField_EOF(reader); //------------------------------------------------ case PrepareResponseParseState.ColumnField_Header: return Parse_ColumnField_Header(reader); case PrepareResponseParseState.ColumnField_Content: return Parse_ColumnField_Content(reader); case PrepareResponseParseState.ColumnField_EOF: return Parse_ColumnField_EOF(reader); //------------------------------------------------ case PrepareResponseParseState.ShouldEnd: reader.Reset(); return true; case PrepareResponseParseState.Error_Content: return ParseErrorPacket(reader); default: throw new Exception("unknown step?"); } }
public override void ParsePacketContent(MySqlStreamReader r) { //we 've set _rowDataBuffer from ctor throw new NotSupportedException(); }
public override void Parse(MySqlStreamReader reader) { _finalResult = null; while (!StepParse(reader)) ; //StepParse() return true if //1. need more data or //2. finish }
public override void ParsePacketContent(MySqlStreamReader r) { _QUERY_CMD = r.ReadByte();//1 _sql = r.ReadPacketTerminatedString(); }
public override void Parse(MySqlStreamReader reader) { //reset final result _parseResult = null; while (!StepParse(reader)) ; //StepParse() return true if //1. need more data or //2. finish if (_needMoreData) { //at any state if need more buffer //then stop parsing and return if (_supportPartialRelease) { if (_rows != null && _rows.Count > 0) { _parseResult = new MySqlTableResult(_tableHeader, _rows) { HasFollower = true }; } if (_generateResultMode) { //generate new result _rows = new List<DataRowPacket>(); } } } else if (_parsingState == ResultPacketState.ShouldEnd) { //reset reader.Reset(); _parsingState = ResultPacketState.Header_Header; } }
/// <summary> /// parse only body part, please ensure content length before parse /// </summary> /// <param name="r"></param> public abstract void ParsePacketContent(MySqlStreamReader r);
bool Parse_Error_Content(MySqlStreamReader reader) { if (!reader.Ensure(_currentHeader.ContentLength)) //check if length is enough to parse { return _needMoreData = true; } var errPacket = new ErrPacket(_currentHeader); errPacket.ParsePacketContent(reader); //------------------------ _parseResult = new MySqlErrorResult(errPacket); _parsingState = ResultPacketState.ShouldEnd; return true;//finished }
public override void ParsePacketContent(MySqlStreamReader r) { fieldCount = r.ReadByte(); if (protocol41) { warningCount = r.U2();//2 serverStatus = r.U2();//2 } }
public override void Parse(MySqlStreamReader reader) { _finalResult = null; //1.create connection frame //_writer.Reset(); PacketHeader header = reader.ReadPacketHeader(); _handshake = new HandshakePacket(header); //check if _handshake.ParsePacketContent(reader); _finalResult = new MySqlHandshakeResult(_handshake); }
public override void ParsePacketContent(MySqlStreamReader r) { if (protocol41) { catalog = r.ReadLengthCodedString();//3,100,101,102,103 (always "def") schema = r.ReadLengthCodedString(); table = r.ReadLengthCodedString(); orgTable = r.ReadLengthCodedString(); name = r.ReadLengthCodedString(); orgName = r.ReadLengthCodedString(); //next_length (lenenc_int) -- length of the following fields (always 0x0c) *** uint lengthCodedNumber = r.ReadLengthCodedNumber(); if (lengthCodedNumber != 0x0c) { //var err = new TypeError('Received invalid field length'); //err.code = 'PARSER_INVALID_FIELD_LENGTH'; //throw err; #if DEBUG if (lengthCodedNumber == 0) { //error //this package is error packet //server may send the correct one? dbugFailure = true; return; } #endif throw new Exception("Received invalid field length"); } charsetNr = r.U2();//2 maxLengthOfField = r.U4();//4 columnType = r.ReadByte();//1 flags = r.U2();//2 maxShownDecimalDigits = r.ReadByte(); filler = r.ReadBuffer(2); if (filler[0] != 0x0 || filler[1] != 0x0) { //var err = new TypeError('Received invalid filler'); //err.code = 'PARSER_INVALID_FILLER'; //throw err; throw new Exception("Received invalid filler"); } // parsed flags //this.zeroFill = (this.flags & 0x0040 ? true : false); zeroFill = ((flags & 0x0040) == 0x0040 ? true : false); if (r.ReachedPacketEnd()) { return; } //---- //if command was COM_FIELD_LIST { // lenenc_int length of default- values //string[$len] default values //} strDefault = r.ReadLengthCodedString(); } else { table = r.ReadLengthCodedString(); name = r.ReadLengthCodedString(); maxLengthOfField = r.ReadUnsigedNumber(r.ReadByte()); columnType = (int)r.ReadUnsigedNumber(r.ReadByte()); } }
bool Parse_Field_EOF(MySqlStreamReader reader) { if (!reader.Ensure(_currentHeader.ContentLength)) //check if length is enough to parse { return _needMoreData = true; } var eofPacket = new EofPacket(_currentHeader, this._isProtocol41); eofPacket.ParsePacketContent(reader); _parsingState = ResultPacketState.Row_Header; return false; }