public void Close()
        {
            if (socketClient == null)
            {
                return;
            }

            if (socketListener != null)
            {
                socketListener.StopListening();
            }

            socketClient.Close();
            socketListener = null;
            socketClient   = null;
        }
 public void Stop()
 {
     socketListener.StopListening();
     clientSocket = null;
 }