From: Ross Johnson <rpj@ise.canberra.edu.au>
To: Simon Gerblich <sgerblich@daronmont.com.au>
Cc: pthreads-win32@sources.redhat.com
Subject: Re: Cancellation points
Date: Mon, 16 Dec 2002 23:24:00 -0000 [thread overview]
Message-ID: <3DFED0FD.3030209@ise.canberra.edu.au> (raw)
In-Reply-To: <8179ED123ECCD611A5490000F822E6EA061B27@pd001649.daronmont.com.au>
Hi Simon,
Sleep() [with uppercase 'S'] is definitely not a cancelation point -
only functions included with pthreads-win32 can be cancelation
points. The POSIX function sleep() isn't provided by pthreads-win32
either.
See the Conformance section of the ANNOUNCE file for all functions
that have been implemented. Any of those that should be cancelation
points are.
Re pthread_mutex_lock(), Thomas Pfaff discovered this bug only a few
days ago and tracked it down (to an error of mine). I will fix it
and drop it into CVS ASAP.
Thanks.
Ross
Simon Gerblich wrote:
> Hi,
>
> I'm having some problems working out which functions are cancellation points
> when using
> pthread_cancel() with pthread_setcanceltype(PTHREAD_CANCEL_DEFERRED, NULL).
> I'm using pthreadsVC.dll on Windows 2000.
>
> Is Sleep() meant to be a cancellation point in WIN32? I've read in the
> Solaris reference
> manual that sleep() and usleep() are cancellation points for pthreads on
> Solaris, but can
> not find a list of cancellation points for pthreads on WIN32.
>
> Also pthread_mutex_lock() is acting as a cancellation point in my code. I
> have to put
> pthread_setcancelstate(PTHREAD_CANCEL_DISABLE, NULL) before my
> calls to pthread_mutex_lock to stop it acting as a cancellation point. If
> the thread
> cancellation occurs in a call to pthread_mutex_lock(), the mutex that was
> being locked
> returns EBUSY when destroyed with pthread_mutex_destroy(). Has anyone else
> seen this happen?
>
> Thanks for any help,
> Simon Gerblich
next prev parent reply other threads:[~2002-12-17 7:24 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-12-16 22:56 Simon Gerblich
2002-12-16 23:24 ` Ross Johnson [this message]
2002-12-17 0:15 ` Ross Johnson
2002-12-17 1:09 ` Norman Vine
2002-12-16 23:00 Simon Gerblich
2002-12-18 16:29 Simon Gerblich
2002-12-19 5:00 Alexander Terekhov
2002-12-19 15:29 Simon Gerblich
2002-12-19 16:53 ` Alexander Terekhov
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