Question

我正在使用“ Close_Waits”挂起的TCP服务器。我需要一个示例程序来处理来自客户端的持久连接。

我尝试捕获异常，然后关闭捕获中的套接字。但是没有运气！

protected virtual void ReceiveCallBack(IAsyncResult result)
{
    var wrapper = (ConnectedSocketWrapper)result.AsyncState;
    try
    {

        int bytesRead = 0;

        bytesRead = wrapper.ConnectedSocket.EndReceive(result);

        LogInfo("Byte Read" + bytesRead.ToString());

        if (bytesRead > 0)
        {
            LogInfo("inside Byte Read > 0 : " + bytesRead.ToString());
            byte[] dataRead = wrapper.Buffer.Take(bytesRead).ToArray();

            wrapper.ConnectedSocket.BeginReceive(wrapper.Buffer, 0, this.configuration.BytesToReceiveInReadOperation, SocketFlags.None, this.ReceiveCallBack, wrapper);

            DataReceivedByServer dataReceived = new DataReceivedByServer(wrapper.Token, dataRead);

            EventDispatcher.RaiseEvent(dataReceived);

            if (DataReceived != null)
            {
                DataReceived(this, new DataReceivedEventArgs(dataRead, wrapper.Token));
            }

        }
        else
        {
            EventDispatcher.RaiseEvent(new ClientDisconnected(wrapper.Token, "Read 0 bytes (client disconnected gracefully)", wrapper.ConnectedSocket.RemoteEndPoint.ToString()));

            LogInfo("inside Byte Read = 0 : " + bytesRead.ToString());
            Close(wrapper.ConnectedSocket);
            Socket removeSocket;
            connectedSockets.TryRemove(wrapper.Token, out removeSocket);
        }
    }
    catch
    {
        Close(wrapper.ConnectedSocket);
        throw;
    }

}

我需要有一台挂起的TCP服务器来无缝处理请求。

Answer 1

如果您是我，我将检查代码和/或使用此simplsockets，它非常可读。

还要检查这一个MultiProtocolAspNetCore，这是关于如何在TCP的顶部构建ASP.NET Core服务器。

也请阅读这份很棒的TCP/IP .NET Socket FAQ。

如何解决：客户端断开连接后，具有关闭功能的tcp服务器正在等待

1 个答案: