Subj : Re: winXP/2k: ExitProcess() & atexit with multiple threads?
To   : comp.programming.threads
From : David Schwartz
Date : Wed Feb 16 2005 04:07 am


"Mile Blenton" <nomejl@blentronix.com> wrote in message 
news:cuv1lr$p70$1@ls219.htnet.hr...

> Recently I've come accross the following behavior when using
> ExitProcess() inside addional thread I create within my prg.
>
> In main thread I attach a function to be called on exit with
> atexit() and create an additional thread with CreateThread().
> At some point inside created thread ExitProcess() is called.
>
> Under winXP (with and without SP1, did not test with SP2),
> user atexit function gets called within context of the
> running thread (in this case it's the additional thread from
> where ExitProcess() is called).
>
> Under win2000 this is not the case, user atexit function will
> not be called when created thread calls ExitProcess, it only
> get's called when main thread terminates or calls ExitProcess
> (or so it would seem from my test prg).
>
>
> Anyone noticed this and has any explanation of this behavior?
> Which beahvior is the right one?
> ...or is it just another win wysiwyg feature and should be
> accepted as such? :)

    Neither behavior is required or more correct, as far as I can tell. If 
you want 'atexit' functions to be run, why not call 'exit'?

    DS

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