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From: Richard Weinberger <richard.weinberger@gmail.com>
Date: Wed, 8 Apr 2020 12:06:06 +0200
Message-ID: <CAFLxGvxyysB-5KUmVGx3q_oeTzrU6Q5LSRk=FCTZ4n2Ahm4-2A@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 Wed, Apr 8, 2020 at 11:44 AM Petr =C4=8Cervenka <grugh@centrum.cz> wrote=
:
>
> > Use pthread_kill() plus a custom signal. Such as SIGRTMIN + 2.
> Calling of kill() or pthread_kill() does not help. Nothing is able to int=
errupt read() from timerfd (only pthread_cancel). Do I have to prepare the =
task or timerfd to be interruptible by a signal?

Using the signal you can interrupt the system call. Of course only if
the system call is currently interruptable.
pthread_cancel() in async mode also just sends a signal (SIGCANCEL)
and terminates the thread in a more or less sane way.

--=20
Thanks,
//richard