//----------------------------------------------------
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_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);
}
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_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);
}
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_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_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;
}
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;
}