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From: Rainer Weikusat <rweikusat@mssgmbh.com>
Newsgroups: comp.os.linux.development.apps
Subject: Re: threading question
Date: Thu, 15 Dec 2011 15:42:43 +0000
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Mark <i@dontgetlotsofspamanymore.invalid> writes:
> On Wed, 14 Dec 2011 11:12:29 -0600, Bill M
> <wpmccormick@just_about_everywhere.com> wrote:
>
>>Let me ask my question a different way: What is the proper method of 
>>cleaning up threads before the main routine exits? If your previous 
>>response answers that question, maybe you could reform your response?
>
> Ensure that all the threads can respond to a termination request.
> Send a termination request to all threads.
> Call pthread_join() for each thread.

There is no required cleanup when a multithreaded process
exits, especially none which would require collecting a return value
from each thread.