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Date: Thu, 21 Aug 2008 14:21:17 +0200
From: Gilles Chanteperdrix <gilles.chanteperdrix@xenomai.org>
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Subject: Re: [Xenomai-help] How to get pid in Xenomai?
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To: =?ISO-8859-1?Q?=22Hans_S=F8ndergaard_=28HSO=29=22?= <HSO@VIAUC.DK>
Cc: "xenomai@xenomai.org" <xenomai@xenomai.org>

Hans S=F8ndergaard (HSO) wrote:
> Hello.
> 1) Can you tell me, how to get the task id for the current (running) rt_t=
ask?
> I have tried to use getpid(), but this function always gives the same id =
as result.
> I am running several periodic rt_tasks and need their id's.

You can use rt_task_self() or pthread_self(), they will return a unique
pointer for the task. If you would like the Linux pid of the task, you
can do what cyclictest does, i.e. issue the gettid syscall.

>=20
> 2) In Xenomai the priority inheritance protocol is implemented.
> Safety-Critical Java (http://jcp.org/en/jsr/detail?id=3D302) requires the=
 priority ceiling emulation protocol.
> Have you any plan to implement and include this protocol in Xenomai?

Not that I know of, but it may be easy enough to implement, so I guess
your patch would be welcome.

--=20
                                                 Gilles.