Re: checking if thread has ended

From:

"Doug Harrison [MVP]" <dsh@mvps.org>

Newsgroups:

microsoft.public.vc.mfc

Date:

Mon, 28 Jul 2008 18:24:27 -0500

Message-ID:

<vuks84t7ii78sa6dpmu2e5p0fmhjbvcpuq@4ax.com>

On Tue, 29 Jul 2008 04:46:00 +0530, Ashutosh <smbs-msdn@nospam.nospam>
wrote:

Hi,

I am creating a background thread using AfxBeginThread in suspended state, then setting the auto delete member to false then resuming the thread.

Now from the main thread when I call WaitForSingleObject with the thread handle and infinite timeout, it doesn't return even after the thread procedure has ended/returned

Then your thread procedure hasn't returned, or less likely, you have a bug
that is somehow preventing the MFC code which calls your thread function
from returning.

So, how do I check if the thread has terminated? I can use some variable to indicate that, but is there a way to find this using the CWinThread object returned?

What you're doing should work. There is also GetExitCodeThread. If you want
your thread to notify another thread that it is about to exit, it can
PostMessage a user-defined message to a window belonging to that other
thread. The recipient must still WFSO for this to be robust. I talk a lot
about this stuff here:

http://members.cox.net/doug_web/threads.htm

--
Doug Harrison
Visual C++ MVP