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From: Richard Weinberger <richard.weinberger@gmail.com>
Date: Tue, 14 Apr 2020 10:30:17 +0200
Message-ID: <CAFLxGvz7ewnVv57QiEfCG76tjGcJ5v9KSg0QNHwtMa0Hihp_dQ@mail.gmail.com>
Subject: Re: rt_task_unblock() POSIX alternative
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To: =?UTF-8?Q?Petr_=C4=8Cervenka?= <grugh@centrum.cz>
Cc: Jan Kiszka <jan.kiszka@siemens.com>, Xenomai <xenomai@xenomai.org>

On Tue, Apr 14, 2020 at 10:16 AM Petr =C4=8Cervenka <grugh@centrum.cz> wrot=
e:
>
> Hello Richard.
> Sorry for late answer because of the Easter.
>
>  > I gave your program a try.
> > With this changes it works (at least how I understand your test case).
>  >
> > Task started
> > Set period: 5s
> > Task livind: 9.9e-05s
> > Waiting for join
> > Signal handler: 41
> > Signal handler end
> > Task livind: 0.999s
> > Task ended
>  >
> > ...
>
> There has to be something with my version of Xenomai, IPIPE or configurat=
ion. Not even your example is working for me. Morover in your example outpu=
t is clearly visible, that the first waiting is interrupted 9.9e-05s after =
first attempt to wait by some unknown signal. Such thing has never happened=
 to me in POSIX, only in Alchemy.

I fear there seems to be a confusion between POSIX tasks and POSIX skin.
Is your goal programming Xenomai realtime threads using POSIX alike APIs?
Or are you looking for a pedant of rt_task_unblock() to unblock a
POSIX task, without Xenomai realtime threads?

The solution I provided is for the latter case.

--=20
Thanks,
//richard