From: "Steve M. Robbins" <steve@sumost.ca>
To: Philippe Gerum <rpm@xenomai.org>
Cc: Xenomai@xenomai.org
Subject: Re: [Xenomai] Message Pipe services behaviour
Date: Mon, 3 Nov 2014 12:37:47 -0600 [thread overview]
Message-ID: <20141103183747.GB15262@sumost.ca> (raw)
In-Reply-To: <5457AD81.7090200@xenomai.org>
On Mon, Nov 03, 2014 at 05:29:53PM +0100, Philippe Gerum wrote:
> Just to make sure we are on the same page, as Dietmar mentioned in an
> earlier mail, read() as implemented by the rt-pipe driver only returns
> _one_ message at a time, although > 1 could be pending. One has to
> iterate over a read() loop using a non-blocking fd on the /dev/rtp
> device to get them all.
Aha! Thanks (and to Dietmar). I completely missed this fact. I'll
go re-write the read as a loop and see if it works better. I should read
until the read() returns 0 (bytes read)?
Thanks,
-Steve
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next prev parent reply other threads:[~2014-11-03 18:37 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-10-29 16:11 [Xenomai] Message Pipe services behaviour Steve M. Robbins
2014-10-29 17:30 ` Philippe Gerum
2014-10-31 20:00 ` Steve M. Robbins
2014-11-01 9:54 ` Philippe Gerum
2014-11-02 0:53 ` Steve M. Robbins
2014-11-03 8:18 ` Philippe Gerum
2014-11-03 15:59 ` Steve M. Robbins
2014-11-03 16:29 ` Philippe Gerum
2014-11-03 18:37 ` Steve M. Robbins [this message]
2014-11-03 20:01 ` Philippe Gerum
2014-11-03 20:03 ` Gilles Chanteperdrix
2014-11-03 20:18 ` Philippe Gerum
2014-11-03 22:22 ` Steve M. Robbins
2014-11-03 8:54 ` dietmar.schindler
2014-11-03 9:08 ` Philippe Gerum
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