如何在 .NET 中重用套接字? [英] How to reuse socket in .NET?

问题描述

我正在尝试重新连接到我已断开连接的套接字，但由于某种原因它不允许它，即使我调用 Disconnect 方法并将参数reuseSocket"设置为 true.

_socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);_socket.Connect(ipAddress, 端口);//...接收数据_socket.Disconnect(true);//重用Socket = true//...等待_socket.Connect(ipAddress, 端口);//抛出一个 InvalidOperationException:

<块引用>

一旦套接字断开，你只能重新连接异步的，并且只对一个不同的端点.BeginConnect 必须在不会退出的线程上调用直到手术结束完成.

我做错了什么?

解决方案

可以这样设置socket选项

_socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.DontLinger, True)

如果不起作用，请尝试其他选项

_socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.DontLinger, false)_Socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, True)_Socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 500)_Socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.SendTimeout, 超时)

I am trying to reconnect to a socket that I have disconnected from but it won't allow it for some reason even though I called the Disconnect method with the argument "reuseSocket" set to true.

_socket = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);
_socket.Connect(ipAddress, port);
//...receive data
_socket.Disconnect(true); //reuseSocket = true
//...wait
_socket.Connect(ipAddress, port); //throws an InvalidOperationException:

Once the socket has been disconnected, you can only reconnect again asynchronously, and only to a different EndPoint. BeginConnect must be called on a thread that won't exit until the operation has been completed.

What am I doing wrong?

解决方案

You can set the socket options like this

_socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.DontLinger, True)

If it does not work, try some other options

_socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.DontLinger, false)
_Socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReuseAddress, True)
_Socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.ReceiveTimeout, 500)
_Socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.SendTimeout, Timeout)

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