Re: Unable to Abort a listening thread

From: MuZZy (leyandrew_at_yahoo.com)
Date: 01/20/05 

Date: Thu, 20 Jan 2005 01:15:30 -0500

MuZZy wrote:
> HI,
>
> As i posted below i have an app with a separate thread listening for a
> tcp client connection.
> In the simplest way it looks like:
>
> void ListenerThreadFunction()
> {
> TcpListener l = new TcpListener(IpAddress.Parse("127.0.0.1"), 8080);
> l.Start();
> Socket client = l.AcceptSocket();
> client.close;
> l.Stop();
> }
>
> This function is invoked from Form1_Load event of the main form:
>
> Thread MyThread = null;
>
> void Form1_Load(...)
> {
> ...
> MyThread = new Thread(new ThreadStarter(ListenerThreadFunction));
> MyThread.Start();
> }
>
> Now, i'm trying to stop the thread if the app is closing:
>
> void Form1_Closing(...)
> {
> ...
> if ((MyThread!=null) && MyThread.isAlive)
> MyThread.Abort();
> }
>
> But it doesn't work - though main form is closed, i still see that the
> app proccess is alive in IDE.
> MSDN says that Abort throws an exception to the thread, but it never
> gets there...
>
> All of described happens of course if server didn't get a connection and
> the thread is alive.
>
> I'm not that good with threads and think that i misuse the concept
> somehow...
> Any suggestions would be highly appreciated!!!
>

I could use Thread.isBackground = true, this way the thread closes when the main app closes,
but i need to be able to close the thread "gracefully" - i have a log file open in that listener thread and i need to close the file before
terminating the thread.

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