protected Exception HandleErrorResponse(TCPBinaryReader response)
{
if (response.Command != 0x80000000)
throw new InvalidOperationException("Call to HandleErrorResponse for non-error response");
var exceptionClassCode = response.ReadInt32();
var msg = response.ReadString();
switch(exceptionClassCode)
{
case ServerInternalException.CODE: return new ServerInternalException(msg);
case ServerInvalidArgumentException.CODE: return new ServerInvalidArgumentException(msg);
case ServerStreamAlreadyChangedException.CODE: return new ServerStreamAlreadyChangedException(msg);
case InvalidProtocolException.CODE: return new InvalidProtocolException(msg);
default:
return new NotSupportedException("Unknown server exception code: " + exceptionClassCode);
}
}
protected TCPBinaryReader SendReceive(TCPBinaryWriter request)
{
lock (m_Lock)
{
OpenIfClosed();
//
byte[] data;
var dataSize = request.Finish(out data);
var stream = m_TcpClient.GetStream();
stream.Write(data, 0, dataSize);
stream.Flush();
//
var recvData = new TCPBinaryReader(TCPCommunicationSignature.Response, ReadBuffer);
if (!recvData.IsComplete)
throw new IOException("Incomplete response received");
if (recvData.Command == TCPCommunicationSignature.CmdException)
{
throw HandleErrorResponse(recvData);
}
if (recvData.Command != request.Command && recvData.Command != TCPCommunicationSignature.CmdException)
throw new InvalidProtocolException("Invalid response command");
return recvData;
}
}