如何正确关闭一个socket

public void StopSocket(Action stopSocketCallBack)
    {
        isSocketRunning = false;


        if (clientSocket != null)
        {
clientSocket.LingerState = new LingerOption (false, 5);
clientSocket.Shutdown (SocketShutdown.Both);
                       clientSocket.Close();
        }


stopSocketCallBack ();
    }