Subj : Re: Main thread going away but worker threads executing?
To   : comp.programming.threads
From : Doug Harrison
Date : Fri Jul 22 2005 09:41 am

On Thu, 21 Jul 2005 14:29:54 -0700, Kev wrote:

> I can prove that killing the main thread doesn't automatically kill 
> spawned threads in C#. (I have a function in which I create a few 
> ThreadStart objects and then start threads using them. I call that 
> function from Main() and exit immediately with a message. The other 
> threads continue executing long after the Main thread is gone. I have 
> been able to verify my observations with the Threads window in Visual 
> Studio's debugger.)

That's not true for background threads, which include threadpool threads
and by extension, asynchronous delegates:

Foreground and Background Threads
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/cpguide/html/cpconthreadlevels.asp
 
> However, how do I prove the opposite for unmanaged C/C++? I want to write 
> a very simple C or C++ program (on Windows) that shows a main thread 
> killing all its spawned threads on exiting. I looked at the sample MSDN 
> program with C and Win32 available at http://snipurl.com/gf08 but it 
> couldn't do what I wanted...

See the example I presented in this message:

http://groups-beta.google.com/group/microsoft.public.vc.mfc/msg/e2a814217aacd8a8?hl=en&

-- 
Doug Harrison
dsh@mvps.org

.