private void SendConnack(uint clientIndex, bool cleanSession, byte returnCode, bool isWebSocketClient) { MqttMsgConnack connack = MsgBuilder.BuildConnack(cleanSession, returnCode); if (!isWebSocketClient) { tcpServer.Send(clientIndex, connack.GetBytes()); } else { wsServer.Send(clientIndex, connack.GetBytes()); } //Send(clientIndex, connack.GetBytes(), connack.GetBytes().Length); }