From: Erik Faye-Lund <kusmabite@gmail.com>
To: Jeff King <peff@peff.net>
Cc: Johannes Sixt <j6t@kdbg.org>, git@vger.kernel.org
Subject: Re: [PATCH 5/4] run-command: implement abort_async for pthreads
Date: Fri, 1 Apr 2011 22:13:23 +0200 [thread overview]
Message-ID: <AANLkTi=ro88pwpA+Gfu5p2dB3ntn8PUcwvjHRh3iRy_H@mail.gmail.com> (raw)
In-Reply-To: <20110401200537.GA15778@sigill.intra.peff.net>
On Fri, Apr 1, 2011 at 10:05 PM, Jeff King <peff@peff.net> wrote:
> On Fri, Apr 01, 2011 at 09:57:14PM +0200, Erik Faye-Lund wrote:
>
>> > But this does not help the case at hand in any way. How would you interrupt a
>> > thread that is blocked in ReadFile()? The point of pthread_cancel() is that
>> > it interrupts blocked system calls
>>
>> There is no mention of such a guarantee in POSIX (section 2.9.5 Thread
>> Cancellation), so relying on that is undefined behavior.
>
> Eh? My pthreads(7) says that read() is required to be a cancellation
> point acrroding to POSIX. I didn't dig up the actual reference in the
> standard, though.
I don't understand where the implementor would get that from after
reading through it, but if there's something I've missed we can fix it
by replacing my pthread_cancel with this, no?
static inline int pthread_cancel(pthread_t thread)
{
SetEvent(thread.cancel_event);
CancelSynchronousIo(thread.handle);
}
next prev parent reply other threads:[~2011-04-01 20:13 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-03-31 18:42 [PATCH 0/4] fix hang in git push when pack-objects fails Jeff King
2011-03-31 18:43 ` [PATCH 1/4] teach wait_or_whine a "quiet" mode Jeff King
2011-03-31 20:56 ` Johannes Sixt
2011-04-01 1:35 ` Jeff King
2011-03-31 18:44 ` [PATCH 2/4] finish_async: be quiet when waiting for async process Jeff King
2011-03-31 18:44 ` [PATCH 3/4] run-command: allow aborting async code prematurely Jeff King
2011-04-01 9:36 ` Erik Faye-Lund
2011-04-01 13:59 ` Jeff King
2011-03-31 18:44 ` [PATCH 4/4] send-pack: abort sideband demuxer on pack-objects error Jeff King
2011-04-13 19:53 ` Johannes Sixt
2011-04-14 13:54 ` Jeff King
2011-04-14 19:36 ` Johannes Sixt
2011-04-14 20:21 ` Jeff King
2011-04-14 20:43 ` Johannes Sixt
2011-04-14 20:51 ` Jeff King
2011-04-14 21:05 ` Johannes Sixt
2011-04-14 21:21 ` Junio C Hamano
2011-04-24 20:42 ` [PATCH/RFC 1/2] send-pack --stateless-rpc: properly close the outgoing channel Johannes Sixt
2011-04-24 20:49 ` [PATCH 2/2] send-pack: avoid deadlock when pack-object dies early Johannes Sixt
2011-04-25 16:50 ` Jeff King
2011-04-25 17:41 ` Johannes Sixt
2011-04-25 17:51 ` Junio C Hamano
2011-04-25 21:04 ` [PATCH v2] " Johannes Sixt
2011-04-26 8:23 ` Jeff King
2011-04-25 16:40 ` [PATCH/RFC 1/2] send-pack --stateless-rpc: properly close the outgoing channel Jeff King
2011-03-31 18:45 ` [PATCH 5/4] run-command: implement abort_async for pthreads Jeff King
2011-04-01 9:41 ` Erik Faye-Lund
2011-04-01 10:15 ` Erik Faye-Lund
2011-04-01 17:27 ` Johannes Sixt
2011-04-01 17:38 ` Jeff King
2011-04-01 19:26 ` Erik Faye-Lund
2011-04-01 19:33 ` Erik Faye-Lund
2011-04-01 19:42 ` Johannes Sixt
2011-04-01 19:57 ` Erik Faye-Lund
2011-04-01 20:05 ` Jeff King
2011-04-01 20:13 ` Erik Faye-Lund [this message]
2011-04-01 20:17 ` Jeff King
2011-04-01 20:18 ` Jeff King
2011-04-01 20:34 ` Erik Faye-Lund
2011-04-01 20:36 ` Johannes Sixt
2011-04-01 20:41 ` Erik Faye-Lund
2011-04-01 20:18 ` Johannes Sixt
2011-04-01 20:31 ` Erik Faye-Lund
2011-04-01 21:16 ` Jeff King
2011-04-02 12:27 ` Erik Faye-Lund
2011-04-01 14:00 ` Jeff King
2011-03-31 20:45 ` [PATCH 0/4] fix hang in git push when pack-objects fails Johannes Sixt
2011-04-01 1:34 ` Jeff King
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