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 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
}
}
void RecvPacket_A(Action whenRecv)
{
_recvComplete = false;
bool isFirstRecv = true;
//before start recv
_conn.StartReceive(result =>
{
if (result == null)
{
throw new NotSupportedException();
}
else
{
switch (result.Kind)
{
default: throw new NotSupportedException(); //unknown
case MySqlResultKind.Ok:
{
OkPacket = (result as MySqlOkResult).okpacket;
RecvComplete();
}
break;
case MySqlResultKind.Error:
{
MySqlErrorResult error = result as MySqlErrorResult;
Error = error.errPacket;
RecvComplete();
if (_errorListener != null)
{
_errorListener(error);
}
else
{
//ERROR
throw new MySqlExecException(error);
}
}
break;
case MySqlResultKind.PrepareResponse:
{
//The server will send a OK_Packet if the statement could be reset, a ERR_Packet if not.
//on prepare
MySqlPrepareResponseResult response = result as MySqlPrepareResponseResult;
_prepareContext = new PreparedContext(
response.okPacket.statement_id,
_sqlStrTemplate,
response.tableHeader);
RecvComplete();
}
break;
case MySqlResultKind.TableResult:
{
//support partial table mode
//last sub table is not partial table
//and must notify reader first***
//before call RecvComplete();
//-----------------------------------------
MySqlTableResult tableResult = result as MySqlTableResult;
//***
_recvComplete = !tableResult.HasFollower;
//the _tableResultListener may modifid by other state (Close)
//if don't lock we need to store it to local var
_tableResultListener?.Invoke(tableResult);
//-----------------------------------------
if (!tableResult.HasFollower)
{
RecvComplete();
}
}
break;
case MySqlResultKind.MultiTableResult:
{
MySqlMultiTableResult multiTables = result as MySqlMultiTableResult;
List <MySqlTableResult> subTables = multiTables.subTables;
int j = subTables.Count;
for (int i = 0; i < j; ++i)
{
MySqlTableResult table = subTables[i];
if (i < j - 1)
{
//not the last one
//(the last one may complete or not complete)
table.HasFollower = true;
//the _tableResultListener may modifid by other state (Close)
//if don't lock we need to store it to local var
_tableResultListener?.Invoke(table);
}
else
{
//this is the last one in the series
//support partial table mode
//last sub table is not partial table
//and must notify reader first***
//before call RecvComplete();
_recvComplete = !table.HasFollower;
//the _tableResultListener may modifid by other state (Close)
//if don't lock we need to store it to local var
_tableResultListener?.Invoke(table);
if (!table.HasFollower)
{
RecvComplete();
}
}
}
}
break;
}
}
//-----------------
//exec once
if (isFirstRecv)
{
isFirstRecv = false;
whenRecv();
whenRecv = null;
}
//-----------------
});
}
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_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;
}