From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Michael Kerrisk <mtk-lkml@gmx.net>
Cc: David Woodhouse <dwmw2@infradead.org>,
drepper@redhat.com, jakub@redhat.com,
linux-kernel@vger.kernel.org, bert.hubert@netherlabs.nl,
michael.kerrisk@gmx.net, akpm@osdl.org
Subject: Re: pselect() modifying timeout
Date: Mon, 08 Aug 2005 12:10:12 +0100 [thread overview]
Message-ID: <1123499412.28681.9.camel@localhost.localdomain> (raw)
In-Reply-To: <31556.1123238544@www44.gmx.net>
On Gwe, 2005-08-05 at 12:42 +0200, Michael Kerrisk wrote:
> 1. POSIX made the behaviour of pselect() explicit -- the
> timeout must not be modified. The idea was to avoid the
> vagueness of the select() specification; it had to be vague
> because of existing implementations. By contrast, there were
Unfortunately it made the wrong choice with pselect, as Linux select
experience has shown the modified timeout is *very* useful data to some
applications. So the patch is better than the POSUX behaviour. The
library can wrap it to provide the poorer standards compliant API while
not stopping people using the better one for Linux specific apps.
next prev parent reply other threads:[~2005-08-08 10:44 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-10 22:58 Add pselect, ppoll system calls David Woodhouse
2005-06-12 22:48 ` Alan Cox
2005-06-13 0:26 ` Linus Torvalds
2005-06-13 1:16 ` jnf
2005-06-13 3:26 ` Linus Torvalds
2005-06-13 6:22 ` Ulrich Drepper
2005-06-13 9:16 ` bert hubert
2005-06-13 9:41 ` David Woodhouse
2005-06-13 11:05 ` Christoph Hellwig
2005-06-13 11:14 ` Jakub Jelinek
2005-06-13 11:24 ` David Woodhouse
2005-06-13 15:38 ` Ulrich Drepper
2005-06-13 16:02 ` David Woodhouse
2005-06-13 16:10 ` Ulrich Drepper
2005-06-13 16:29 ` David Woodhouse
2005-06-13 16:31 ` Ulrich Drepper
2005-06-13 21:58 ` David Woodhouse
2005-06-13 22:01 ` Ulrich Drepper
2005-06-13 16:36 ` Jakub Jelinek
2005-06-15 11:36 ` David Woodhouse
2005-08-05 10:42 ` pselect() modifying timeout Michael Kerrisk
2005-08-05 14:50 ` Ulrich Drepper
2005-08-05 20:08 ` Michael Kerrisk
2005-08-08 11:10 ` Alan Cox [this message]
2005-08-05 11:58 ` Add pselect, ppoll system calls Michael Kerrisk
2005-08-05 12:49 ` Michael Kerrisk
2005-08-25 0:04 ` David Woodhouse
2005-08-25 0:34 ` Ulrich Drepper
2005-08-26 6:46 ` Michael Kerrisk
2005-06-13 15:35 ` Ulrich Drepper
2005-06-13 7:23 ` Benjamin Herrenschmidt
2005-06-13 7:29 ` David Woodhouse
2005-06-13 22:56 ` Benjamin Herrenschmidt
2005-06-13 11:15 ` Alan Cox
2005-06-13 11:27 ` David Woodhouse
2005-06-13 15:40 ` Ulrich Drepper
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