Socket error on service stop

[Jacob D Dixon]

Well I'm new to programming using sockets. What i am trying to do is create a client/server model. The client will report into the server every so often, and the server will send back data telling the agent what to do. (Monitoring software). The problem I am having is closing the socket on the server. I get errors like: A blocking operation was interrupted by a call to WSACancelBlockingCall For my code:

while (running)
{
try
{
Socket socket = this.listener.Accept();

                if (socket != null)
                {
                    Thread handleThread = new Thread(new ParameterizedThreadStart(HandleTheClient));
                    handleThread.Start(socket);
                }
            }
            catch (Exception ex)
            {
                Logging.Log(ex.ToString());
            }
        }

Closing:

protected override void OnStop()
{
running = false;

        if (listener != null)
        {
            listener.Shutdown(SocketShutdown.Both);
            listener.Close();
        }
    }

Now I know the problem is with;

Socket socket = this.listener.Accept();

But how do I fix this? IS the only way to use AcceptAsync? IF you are wondering why I'm not using that then its because I haven't learned it yet. I need to read up on it first. So can I break this block somehow when the service is trying to stop so the service will stop without error or even stop?

[RaviRanjanKr]

Before calling the Accept method, you must first call the Listen method to listen for and queue incoming connection requests. Have you tried it Whatever,still now if you receive a SocketException,you can use the SocketException.ErrorCode property to obtain the specific error code. After getting code you can refer to the Windows Sockets version 2 API error code documentation in the MSDN library for a detailed description of the error. I Hope it will work for you. :)

[Jacob D Dixon]

I didn't show all of my code.. sorry about that. I called the Listen for the WHILE statement. The problem is when doing it this way it blocks at the Accept() method. The way I have it works. I can accept connections and do what I want with the data (I'm sending / receiving serialized data). The problem is when someone goes and tries to stop the service. That is when I try to call the Shutdown and Close method and thats when it hangs I decided to use async sockets

modified on Saturday, November 6, 2010 12:48 PM