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Message-ID: <Pine.LNX.4.64.0808241229170.13864@alien.or.mcafeemobile.com>
Date: Sun, 24 Aug 2008 12:35:33 -0700 (PDT)
From: Davide Libenzi <davidel@...ilserver.org>
To: Michael Kerrisk <mtk.manpages@...glemail.com>
cc: Ulrich Drepper <drepper@...hat.com>,
Andrew Morton <akpm@...ux-foundation.org>,
Al Viro <viro@...iv.linux.org.uk>,
lkml <linux-kernel@...r.kernel.org>
Subject: Re: No NONBLOCK flag for dup3() or epoll_create1()?
On Wed, 20 Aug 2008, Michael Kerrisk wrote:
> Ulrich
>
> I've been doing some testing (2.6.27-rc3) of your new
> file-descriptor-creating syscalls that accept flags. According to
>
> http://udrepper.livejournal.com/20407.html
>
> all of the system calls should accept a *_NONBLOCK flag. All of them do,
> except for two:
> dup3(olfd, newfd, flags)
> and
> epoll_create1(flags).
>
> For epoll_create1() this certainly appears to be an oversight, since I can't
> think of a reason not to support *_NONBLOCK.
Traditionally the no-wait epoll_wait() has been achieved with a zero
timeout, but _NONBLOCK support can be easily added if seen as necessary.
- Davide
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