From: Alexandre Bique <bique.alexandre@gmail.com>
To: Florian Weimer <fweimer@redhat.com>
Cc: Alexandre Bique via Libc-help <libc-help@sourceware.org>
Subject: Re: Yield to specific thread?
Date: Thu, 20 May 2021 13:09:27 +0200 [thread overview]
Message-ID: <CAP737oKSO-Sx0MEQLOwjmmMyea+BEDvZEwtQNmxcM0+9ep8ytg@mail.gmail.com> (raw)
In-Reply-To: <877djtsm5h.fsf@oldenburg.str.redhat.com>
On Thu, May 20, 2021 at 1:03 PM Florian Weimer <fweimer@redhat.com> wrote:
>
> * Alexandre Bique via Libc-help:
>
> > Ideally I'd like to do:
> > A produces a request
> > A sched_yield_to(B)
> > B processes the request
> > B sched_yield_to(A)
>
> This looks like an application for a condition variable or perhaps a
> barrier. If there is just a single writer, the kernel should wake up
> the desired thread.
I don't think conditions or barriers would solve the problem. Because
they would just put the waiting threads on the wake up queue like the
read() on the pipe would.
next prev parent reply other threads:[~2021-05-20 11:09 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-20 10:42 Alexandre Bique
2021-05-20 11:02 ` Florian Weimer
2021-05-20 11:09 ` Alexandre Bique [this message]
2021-05-20 11:20 ` Konstantin Kharlamov
2021-05-20 11:54 ` Alexandre Bique
2021-05-25 18:21 ` Adhemerval Zanella
2021-05-26 9:36 ` Tadeus Prastowo
2021-05-26 14:09 ` Alexandre Bique
2021-05-20 12:27 ` Godmar Back
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