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From: "David M. Lloyd" <dmlloyd@flurg.com>
To: Davide Libenzi <davidel@xmailserver.org>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Andrew Morton <akpm@linux-foundation.org>,
	Linus Torvalds <torvalds@linux-foundation.org>
Subject: Re: [patch 2/5] signalfd v2 - signalfd core ...
Date: Thu, 08 Mar 2007 08:31:04 -0600	[thread overview]
Message-ID: <1173364264.6891.3.camel@localhost> (raw)
In-Reply-To: <Pine.LNX.4.64.0703071712210.3672@alien.or.mcafeemobile.com>

On Wed, 2007-03-07 at 17:21 -0800, Davide Libenzi wrote:
> int signalfd_dequeue(int fd, siginfo_t *info, long timeo);
> 
> The "fd" parameter must ba a signalfd file descriptor. The "info" parameter
> is a pointer to the siginfo that will receive the dequeued signal, and
> "timeo" is a timeout in milliseconds, or -1 for infinite.
> The signalfd_dequeue function returns 0 if successfull.

Does this support non-blocking mode?  It doesn't seem to at my level of
understanding anyway.  If I use this with EPOLLET for example, I'd
expect to get a single EPOLLIN when a signal arrives, which would
indicate to me that I must call signalfd_dequeue() in a loop until I get
EAGAIN in order to be sure I've consumed all the outstanding signals so
that the edge-triggered notification can be "re-armed".

Make sense?

- DML


  reply	other threads:[~2007-03-08 14:31 UTC|newest]

Thread overview: 29+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-03-08  1:21 [patch 2/5] signalfd v2 - signalfd core Davide Libenzi
2007-03-08 14:31 ` David M. Lloyd [this message]
2007-03-08 15:45   ` Davide Libenzi
2007-03-08 16:22     ` Linus Torvalds
2007-03-08 16:29       ` Davide Libenzi
2007-03-08 16:40         ` Michael K. Edwards
2007-03-08 17:28           ` Linus Torvalds
2007-03-08 20:53             ` Michael K. Edwards
2007-03-30 23:24             ` Denis Vlasenko
2007-03-08 17:15         ` Linus Torvalds
2007-03-08 19:21           ` Davide Libenzi
2007-03-08 19:27             ` Linus Torvalds
2007-03-08 19:33               ` Davide Libenzi
2007-03-08 20:48               ` Marko Macek
2007-03-08 21:03               ` Marko Macek
2007-03-09 20:22               ` Kent Overstreet
2007-03-08 19:34             ` Avi Kivity
2007-03-08 19:40               ` Davide Libenzi
2007-03-08 23:57       ` Jeremy Fitzhardinge
2007-03-09  0:10         ` Linus Torvalds
2007-03-09 21:33   ` Davide Libenzi
  -- strict thread matches above, loose matches on Subject: below --
2007-03-08 20:43 Oleg Nesterov
2007-03-08 21:12 ` Davide Libenzi
2007-03-08 21:56   ` Oleg Nesterov
2007-03-08 22:11     ` Linus Torvalds
2007-03-08 22:59       ` Davide Libenzi
2007-03-08 23:05     ` Davide Libenzi
2007-03-09  0:14       ` Oleg Nesterov
2007-03-09  1:16         ` Davide Libenzi

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