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_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)));
reader.ClearReadBuffer();
}
}
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);
}