TCP套接字客户端处于接收状态 [英] TCP Socket Client in receiving state

问题描述

您好，我有一个程序，该程序使用连接到服务器的套接字，并等待使用Socket.receive接收数据.

这里的问题是，我需要每60秒发送一条消息，以查看服务器是否仍在运行，然后返回到接收状态.我一直在尝试使用ReceiveTimeout，但是以某种方式关闭了套接字(至少在调试中，我已经看到Socket.Connected == false)，就像MSDN所说的那样，它将抛出SocketExeption .HELP PLEASE！

Hello, I have a program that uses a socket that connects to a server, and waits for receiving data using the Socket.receive.

The question here is that, I need to send an message every 60 seconds to see if the server is still alive and then get back to receive state. I''ve been trying to use the ReceiveTimeout, but this, somehow, Closes the Socket (at least in debug i''ve seen that the Socket.Connected == false) and just like the MSDN says, it will throw an SocketExeption.HELP PLEASE!

IPEndPoint EPhost = new IPEndPoint(hostadd, port);
           s.Connect(EPhost);
           Byte[] receive = new Byte[1024];
           s.ReceiveTimeout = 2000;
           while (true)
           {
               try
               {
                   Console.WriteLine("RECEIVING");
                   s.ReceiveTimeout = 2000;
                   s.Receive(receive);
                   
               }
               catch (SocketException sex)
               {
                  //I HAVE NO IDEIA WHAT I SHOULD DO HERE.

               }
           }

推荐答案

您无需停止接收即可发送.

当然，如果服务器将响应发送到您的ping，则必须在接收处理程序中期望它.

尼克

You don''t need to stop your receive to do a send.

Of course, if the server sends a response to your ping, you''ll have to expect that in your receive handler.

Nick

我对套接字不是很熟悉，但是会使用类似Socket.Poll方法的方法来实现您的目的吗? http://msdn.microsoft.com/en-us/library/system.net.sockets.socket.poll.aspx [ ^ ]

I am not very familiar with sockets, but would using something like the Socket.Poll method work for your purposes? http://msdn.microsoft.com/en-us/library/system.net.sockets.socket.poll.aspx[^]

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