bool Parse_Ok_Content(MySqlStreamReader reader)
{
if (!reader.Ensure(_currentHeader.ContentLength)) //check if length is enough to parse
{
return(_needMoreData = true);
}
if (this._currentMultResultSet != null)
{
//in multiple result set mode ***
//see https://dev.mysql.com/doc/internals/en/multi-resultset.html
//
var okPacket = new OkPacket(_currentHeader, this._isProtocol41);
okPacket.ParsePacketContent(reader);
_parseResult = _currentMultResultSet;
_parsingState = ResultPacketState.ShouldEnd; //*
//
_currentMultResultSet = null; //reset
}
else
{
var okPacket = new OkPacket(_currentHeader, this._isProtocol41);
okPacket.ParsePacketContent(reader);
_parseResult = new MySqlOkResult(okPacket);
_parsingState = ResultPacketState.ShouldEnd; //*
}
return(true);
}
public override void Parse(MySqlStreamReader reader)
{
_finalResult = null;
while (!StepParse(reader))
{
;
}
//StepParse() return true if
//1. need more data or
//2. finish
}
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 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);
}
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;
}
}
/// <summary>
/// return true if not complete
/// </summary>
/// <param name="recvIO"></param>
/// <returns></returns>
public bool ParseData(RecvIO recvIO)
{
//we need to parse some data here
//load incomming data into ms
//load data from recv buffer into the ms
//---------------
//copy all to stream
//may not complete in first round ***
_mysqlStreamReader.AppendBuffer(recvIO, recvIO.BytesTransferred);
_currentPacketParser.Parse(_mysqlStreamReader);
//-----------------------------------------------
//some large table may not complete in first round
ParseResult = _currentPacketParser.ParseResult;
return(!(_isCompleted = !_currentPacketParser.NeedMoreData));
//--------------------
//not need to wait here
//just return ***
//--------------------
}
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_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);
}
}
void HandleReceive(RecvEventCode recvEventCode)
{
switch (recvEventCode)
{
default: throw new NotSupportedException();
case RecvEventCode.SocketError:
{
UnBindSocket(true);
}
break;
case RecvEventCode.NoMoreReceiveData:
{
}
break;
case RecvEventCode.HasSomeData:
{
//process some data
//there some data to process
//parse the data
#if DEBUG
if (dbugPleaseBreak)
{
}
#endif
bool needMoreData = _mysqlParserMx.ParseData(recvIO);
//please note that: result packet may not ready in first round
//but parser mx may 'release' some part of the result (eg. large table)
MySqlResult result = _mysqlParserMx.ParseResult; //'release' result
//---------------------------------------------------------------
if (result != null)
{
//if we has some 'release' result from parser mx
if (needMoreData)
{
//this is 'partial result'
if (whenRecvData == null)
{
//?
}
//-------------------------
//partial release data here
//before recv next
//because we want to 'sync'
//the series of result
whenRecvData(result);
//-------------------------
}
else
{
//when recv complete***
Action <MySqlResult> tmpWhenRecvData = whenRecvData;
//delete recv handle **before** invoke it, and
//reset state to 'rest' state
this.whenRecvData = null;
this._workingState = WorkingState.Rest;
tmpWhenRecvData(result);
}
}
//--------------------------
if (needMoreData)
{
//so if it need more data then start receive next
recvIO.StartReceive(); //***
}
else
{
}
//--------------------------
}
break;
}
}
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_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 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;
}
}
public override void Parse(MySqlStreamReader reader)
{
_finalResult = null;
while (!StepParse(reader)) ;
//StepParse() return true if
//1. need more data or
//2. finish
}
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_Ok_Content(MySqlStreamReader reader)
{
if (!reader.Ensure(_currentHeader.ContentLength)) //check if length is enough to parse
{
return _needMoreData = true;
}
if (this._currentMultResultSet != null)
{
//in multiple result set mode ***
//see https://dev.mysql.com/doc/internals/en/multi-resultset.html
//
var okPacket = new OkPacket(_currentHeader, this._isProtocol41);
okPacket.ParsePacketContent(reader);
_parseResult = _currentMultResultSet;
_parsingState = ResultPacketState.ShouldEnd; //*
//
_currentMultResultSet = null;//reset
}
else
{
var okPacket = new OkPacket(_currentHeader, this._isProtocol41);
okPacket.ParsePacketContent(reader);
_parseResult = new MySqlOkResult(okPacket);
_parsingState = ResultPacketState.ShouldEnd; //*
}
return true;
}
//----------------------------------------------------
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;
}
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
}
