尝试通过重新打开的套接字发送ObjectDisposeException时

问题描述

1. 我正在使用Socket(Socket A = new Socket ...)发送/接收.
2. 当床上发生某些事情(断开连接)时，我试图关闭/放置旧对象，然后实例化一个新的套接字(A = new Socket ...)(相同的主机/端口)
3. connect()阶段检查正常，远程主机可以看到连接.
4. 尝试发送第一个字节时，我立即得到:

有什么想法吗?

try
{
   CCMSocket.SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.NoDelay, true);
   CCMSocket.Connect(CCMServer, CCMPort);
}

现在，使用套接字时，catch子句捕获SocketException，并调用reconnect方法:

Now, when working with the socket, the catch clause catches SocketException, and calls the reconnect method:

try
{
    //Verify the the socket is actually disconnected
    byte[] Empty = new byte[0];
    CCMSocket.Send(Empty);
}
catch (Exception ex)
{
    bool connected = false;
    int reconnectCounter = 0;
    do
    {
        reconnectCounter++;
        Disconnect(); //<-- Just CCMSocket.Disconnect(true) in a try/catch
        if (Connect(CCMServer, CCMPort)) // <-- method given above
        {
            connected = true;
            CCMSocket.Send(LoginData); // this fails
        }
    } while (!connected);
}

推荐答案

让您的Connect方法创建一个 new 套接字并返回该套接字以发送数据.更像是:

Have your Connect method create a new socket and return that socket to send data.Something more like:

try
{
   CCMSocket = new Socket();
   CCMSocket.SetSocketOption(SocketOptionLevel.Tcp, SocketOptionName.NoDelay, true);
   CCMSocket.Connect(CCMServer, CCMPort);
   return CCMSocket
}

和

do
{
    reconnectCounter++;
    Disconnect(); //<-- Just CCMSocket.Disconnect(true) in a try/catch
    var newSocket = Connect(CCMServer, CCMPort); // <-- method given above
    if (newSocket != null)
    {
        connected = true;
        newSocket.Send(LoginData); // should work
        CCMSocket = newSocket; // To make sure existing references work
    }
} while (!connected);

在构建服务器时，您还应该认真考虑异步套接字模式应用程序.

You should also seriously consider the asynchronous socket pattern when building server applications.

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