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Date: Fri, 07 Dec 2012 10:46:29 +0100
From: =?ISO-8859-1?Q?Andreas_Steenpa=DF?= <steenpass AT mathematik DOT uni-kl DOT de>
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To: cygwin AT cygwin DOT com
Subject: Re: sigwait() ignores non-thread-specific pending signals
References: <50C09142 DOT 1090904 AT mathematik DOT uni-kl DOT de> <20121207012753 DOT GA10201 AT ednor DOT casa DOT cgf DOT cx>
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Le 07/12/2012 02:27, Christopher Faylor a écrit :
> I don't see any difference between Cygwin and Linux when I run the
> test program.
>
> cgf

I re-compiled and ran the test program under Cygwin 1.7.17 as well as on
several Linux machines (Debian/Fedora/Gentoo/Ubuntu, kernel versions
2.6.29/2.6.32/3.0.6/3.2.0/3.2.12/3.4.9/3.6.6, different kinds of CPUs
etc.) and I definitely see a difference.

The difference is that after typing in the commands
kill -SIGUSR2 [pid]
kill -SIGUSR1 [pid]
kill -SIGUSR2 [pid]
kill -SIGUSR1 [pid]
(in this order!) in another console, the program blocks under Cygwin
while it exits normally under Linux. The last output under Cygwin is
'thread 2 waiting for SIGUSR2' while under Linux, one more line 'thread
2 received SIGUSR2' is printed out before the program exits.

Regards,
Andreas


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