void ParseReceivePacket()
{
//TODO: review here, optimized buffer
_receiveBuffer = new byte[DEFAULT_BUFFER_SIZE];
var socket = _conn.socket;
int receive = socket.Receive(_receiveBuffer);
if (receive == 0)
{
return;
}
//---------------------------------------------------
//TODO: review err handling
_parser.LoadNewBuffer(_receiveBuffer, receive);
switch (_receiveBuffer[4])
{
case ERROR_CODE:
LoadError = new ErrPacket();
LoadError.ParsePacket(_parser);
break;
case 0xfe: //0x00 or 0xfe the OK packet header
case OK_CODE:
OkPacket = new OkPacket(_conn.IsProtocol41);
OkPacket.ParsePacket(_parser);
break;
default:
ParseResultSet();
break;
}
}
public void Connect()
{
if (State == ConnectionState.Connected)
{
throw new NotSupportedException("already connected");
}
var endpoint = new IPEndPoint(IPAddress.Parse(config.host), config.port);
socket.Connect(endpoint);
byte[] buffer = new byte[512];
int count = socket.Receive(buffer);
if (count > 0)
{
_writer.Reset();
_parser.LoadNewBuffer(buffer, count);
_handshake = new HandshakePacket();
_handshake.ParsePacket(_parser);
threadId = _handshake.threadId;
byte[] token = MakeToken(config.password,
GetScrollbleBuffer(_handshake.scrambleBuff1, _handshake.scrambleBuff2));
_writer.IncrementPacketNumber();
//------------------------------------------
var authPacket = new ClientAuthenticationPacket();
authPacket.SetValues(config.user, token, config.database, _handshake.protocol41);
authPacket.WritePacket(_writer);
byte[] sendBuff = _writer.ToArray();
byte[] receiveBuff = new byte[512];
//-------------------------------------------
//send data
int sendNum = socket.Send(sendBuff);
int receiveNum = socket.Receive(receiveBuff);
_parser.LoadNewBuffer(receiveBuff, receiveNum);
if (receiveBuff[4] == 255)
{
ErrPacket errPacket = new ErrPacket();
errPacket.ParsePacket(_parser);
return;
}
else
{
OkPacket okPacket = new OkPacket(_handshake.protocol41);
okPacket.ParsePacket(_parser);
}
_writer.Reset();
GetMaxAllowedPacket();
_writer.SetMaxAllowedPacket(_maxPacketSize);
}
}