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Date:	Tue, 13 Jul 2010 06:54:24 +0100
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Subject:	Re: pthread_mutex_lock doesn't interrupt
From:	Andy Koppe <andy DOT koppe AT gmail DOT com>
To:	cygwin AT cygwin DOT com
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On 13 July 2010 01:08, James Cotton wrote:
> Sorry, I don't have access to the actual POSIX standard

It's at http://www.opengroup.org/onlinepubs/9699919799.

> but my
> interpretation is based on man pages:
>
> https://computing.llnl.gov/tutorials/pthreads/man/pthread_mutex_lock.txt
>
> And certainly nowhere have I see "pthread_mutex_lock blocks signals".
> The signal we are using is SIGUSR1. =C2=A0I don't see why the signal would
> be deferred since there are no signals being blocked. =C2=A0Possibly the
> first signal gets caught and another one comes while in the signal
> handler (where usual that signal should then get blocked) and is
> disrupting the processing.

Makes sense.

Andy

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