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Date: Thu, 28 Jun 2001 11:50:51 -0400
From: Greg Smith <rys AT epaibm DOT rtpnc DOT epa DOT gov>
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To: cygwin AT cygwin DOT com
Subject: Re: Deadly embrace between pthread_cond_wait and pthread_cond_signal
References: <20010627023524 DOT S19058 AT redhat DOT com> <00aa01c0ff1b$44106960$a300a8c0 AT nhv> <20010627112321 DOT A21615 AT redhat DOT com> <037401c0ff5c$ed60ebc0$806410ac AT local> <3B3A86CF DOT DC0FA39A AT nc DOT rr DOT com> <3B3A87BB DOT 3F7AF46 AT nc DOT rr DOT com> <20010627212201 DOT A27163 AT redhat DOT com>
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Yes, you are absolutely correct.  Turns out pthread_kill() in the
Pthreads-win32 implementation is essentially a nop and we had changed
our select() in the thread that we want to signal to time-out when
we compile under windows.

So, I'm happy to say, this problem turned out to be a `personal problem' ;-)

Greg

Christopher Faylor wrote:

> >Seems we do a lotta SIGHUPs to break a listening thread out of his
> >reverie, but sometimes the wrong thead (which has done a recv() on a
> >socket) gets woken up instead, and is not particularly happy with the
> >EINTR error code.
> 
> Unless Robert has performed some magic that I'm not aware of, there is
> currently no way to interrupt anything but the main thread in cygwin.
> 
> This has been on my tuit list for a long time but it will require a
> lot of rework of the signal code.
>

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