From: Jan Kiszka <jan.kiszka@domain.hid>
To: Rodrigo Rosenfeld Rosas <lbocseg@domain.hid>
Cc: xenomai@xenomai.org
Subject: Re: [Xenomai-help] Have condition variables Priority Inheritance Protection (PIP)?
Date: Fri, 28 Apr 2006 22:42:33 +0200 [thread overview]
Message-ID: <44527E39.7090501@domain.hid> (raw)
In-Reply-To: <200604281736.28169.lbocseg@domain.hid>
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Rodrigo Rosenfeld Rosas wrote:
> Hi,
> Having a look at cond.c in the native skin, I didn't understand why it is not
> passed the PIP flag to xnsynch_init(). I mean, why the code is not
> xnsynch_init(&cond->synch_base,XNSYNCH_PIP);
>
> instead of
>
> xnsynch_init(&cond->synch_base,XNSYNCH_PRIO);
>
> ?
>
> Could someone please point me the reason?
>
Just as with semaphores: there is no ownership concept for condition
variables. Thus, who should be boosted to your priority in case you
decide to wait on such a resource?
Jan
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next prev parent reply other threads:[~2006-04-28 20:42 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-04-28 20:36 [Xenomai-help] Have condition variables Priority Inheritance Protection (PIP)? Rodrigo Rosenfeld Rosas
2006-04-28 20:42 ` Jan Kiszka [this message]
2006-05-02 12:36 ` Rodrigo Rosenfeld Rosas
2006-05-03 7:57 ` Jan Kiszka
2006-05-03 16:15 ` Rodrigo Rosenfeld Rosas
2006-05-04 6:54 ` Jan Kiszka
2006-05-04 13:58 ` Rodrigo Rosenfeld Rosas
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