From mboxrd@z Thu Jan  1 00:00:00 1970
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Date: Sat, 05 Jun 2010 22:46:50 +0200
From: Jan Kiszka <jan.kiszka@domain.hid>
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Subject: Re: [Xenomai-core] [Xenomai-git] Jan Kiszka : native: Rework
 handling of pthread carrier thread
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To: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
Cc: xenomai-core <xenomai@xenomai.org>

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Gilles Chanteperdrix wrote:
> Jan Kiszka wrote:
>> Gilles Chanteperdrix wrote:
>>> Not being able to join a deleted task undermines seriously the utilit=
y
>>> of rt_task_join... What is it useful for, then?
>> See the doc: You join or delete, but not both.
>=20
> Looks to me like a workaround: you are not able to handle properly the
> life-cycle of an RT_TASK, so you changed the rules... is there really n=
o
> other way?

First of all, it turns a SEGV into a proper error code. Moreover,
rt_task_join now officially finalizes the object for native (it always
did technically!), as does pthread_join for POSIX. No rule changed, just
rule documentation and violation detection added. One may argue about
join after delete, but for what use case such a change of rt_task_delete
semantic?

Jan


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