From: Jan Kiszka <jan.kiszka@domain.hid>
To: Steven Seeger <steve@domain.hid>
Cc: "xenomai@xenomai.org" <xenomai@xenomai.org>
Subject: Re: [Xenomai-help] resume/suspend periodic timing issue
Date: Tue, 28 Feb 2006 17:01:14 +0100 [thread overview]
Message-ID: <440473CA.6000205@domain.hid> (raw)
In-Reply-To: <C029B04C.2587%steve@domain.hid>
[-- Attachment #1: Type: text/plain, Size: 732 bytes --]
Steven Seeger wrote:
> Well, the thread suspends when it's done playing, and when new data arrives
> in the buffer via /dev/dsp, the thread is then resumed. I just wonder what
> the point of suspend/resume is, then, if we're supposed to just use
> rt_task_set_periodic to create a new timeline. Right now I am doing this,
> and then suspending, and then before I resume, I make another timeline.
>
Well, and this is racy in case the resume - for what reason ever - takes
place before the suspend. It will get lost then, and your player will
miss a job. One should better model this via an event (don't count
multiple wakeups) or a semaphore (each wakeup counts and is paired with
a wait in the player task).
Jan
[-- Attachment #2: OpenPGP digital signature --]
[-- Type: application/pgp-signature, Size: 250 bytes --]
next prev parent reply other threads:[~2006-02-28 16:01 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-27 14:20 [Xenomai-help] resume/suspend periodic timing issue Steven Seeger
2006-02-27 18:39 ` Gilles Chanteperdrix
2006-02-28 13:45 ` Steven Seeger
2006-02-28 13:55 ` Gilles Chanteperdrix
2006-02-28 14:07 ` Steven Seeger
2006-02-28 14:21 ` Jan Kiszka
2006-02-28 14:24 ` Steven Seeger
2006-02-28 15:10 ` Philippe Gerum
2006-02-28 15:13 ` Steven Seeger
2006-02-28 15:27 ` Jan Kiszka
2006-02-28 15:29 ` Steven Seeger
2006-02-28 15:43 ` Jan Kiszka
2006-02-28 15:46 ` Steven Seeger
2006-02-28 16:01 ` Jan Kiszka [this message]
2006-02-28 16:27 ` Steven Seeger
2006-02-28 15:29 ` Philippe Gerum
2006-02-28 15:31 ` Steven Seeger
2006-02-28 16:20 ` Philippe Gerum
2006-02-28 16:28 ` Steven Seeger
2006-02-28 16:37 ` Philippe Gerum
2006-02-28 17:24 ` Steven Seeger
2006-02-28 17:53 ` [Xenomai-core] rt_task_wait_period() and overruns Philippe Gerum
2006-02-28 18:02 ` [Xenomai-core] Re: [Xenomai-help] " Philippe Gerum
2006-02-28 18:15 ` Steven Seeger
2006-03-01 10:22 ` Philippe Gerum
2006-03-01 15:25 ` Dmitry Adamushko
2006-03-01 16:00 ` Philippe Gerum
2006-03-01 19:01 ` Dmitry Adamushko
2006-03-03 11:29 ` Philippe Gerum
2006-02-28 13:57 ` [Xenomai-help] resume/suspend periodic timing issue Philippe Gerum
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=440473CA.6000205@domain.hid \
--to=jan.kiszka@domain.hid \
--cc=steve@domain.hid \
--cc=xenomai@xenomai.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.