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From: "Michael Kerrisk" <mtk-manpages@gmx.net>
To: Davide Libenzi <davidel@xmailserver.org>
Cc: linux-kernel@vger.kernel.org, akpm@osdl.org
Subject: Re: timerfd(2) draft man page plus questions
Date: Tue, 17 Jul 2007 23:04:17 +0200	[thread overview]
Message-ID: <20070717210417.257740@gmx.net> (raw)
In-Reply-To: <Pine.LNX.4.64.0707171253570.26781@alien.or.mcafeemobile.com>

> > 1. timer_settime() and setitimer() both permit the caller to obtain 
> > the old value of the timer when modifying an existing timer.  Why 
> > doesn't timerfd() provide this functionality?
> 
> I don't know ;) Would it be any useful?

Well given that the two older APIs both provide this
functionality, it seems that it is desired in applications. It 
is a shame that the new API doesn't have this.  It could be 
added (I'm inclined to say, it should be): the only problem
is that the syscall is now out in the wild, so a change at
this point would not be ABI compatible.  However, it only just 
got into the wild (and hasn't made it into glibc yet), so now
would be a good time to fix it, if you are agreeable, and the
kernel gatekeepers are prepared to tolerate the ABI change.

Cheers,

Michael
-- 
Michael Kerrisk
maintainer of Linux man pages Sections 2, 3, 4, 5, and 7 

Want to help with man page maintenance?  
Grab the latest tarball at
http://www.kernel.org/pub/linux/docs/manpages , 
read the HOWTOHELP file and grep the source 
files for 'FIXME'.


  reply	other threads:[~2007-07-17 21:04 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-07-17  7:15 timerfd(2) draft man page plus questions Michael Kerrisk
2007-07-17 19:55 ` Davide Libenzi
2007-07-17 21:04   ` Michael Kerrisk [this message]
2007-07-17 22:06     ` Davide Libenzi
2007-07-17 22:35       ` Michael Kerrisk
  -- strict thread matches above, loose matches on Subject: below --
2007-07-17 23:15 Michael Kerrisk

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