public inbox for linux-kernel@vger.kernel.org
 help / color / mirror / Atom feed
From: Jamie Lokier <jamie@shareable.org>
To: linux-kernel@vger.kernel.org
Cc: Ingo Molnar <mingo@elte.hu>, Ulrich Drepper <drepper@redhat.com>
Subject: Question about threads and signals
Date: Sat, 18 Jan 2003 03:24:50 +0000	[thread overview]
Message-ID: <20030118032450.GA18282@bjl1.asuk.net> (raw)

Dear POSIX thread experts (i.e. Ingo and Ulrich),

I have a teensy question.  Using the new Linux 2.5 threads + glibc/NPTL:

1. If a signal is delivered to a thread, is it masked for the duration of
   the handler in (a) just that thread or (b) all threads?

   In other words, if I have 3 threads and SIGIO is not blocked in any
   of them, is it possible for my SIGIO handler to be called up to 3
   times concurrently?  Or is the blocked mask somehow shared?

   Is the same thing true of SIGCHLD?  SIGSEGV?

2. Is this true of POSIX threads in general, or just Linux?

Thanks,
-- Jamie





             reply	other threads:[~2003-01-18  3:15 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2003-01-18  3:24 Jamie Lokier [this message]
2003-01-18  3:51 ` Question about threads and signals Ulrich Drepper
2003-01-18  4:49   ` Jamie Lokier

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=20030118032450.GA18282@bjl1.asuk.net \
    --to=jamie@shareable.org \
    --cc=drepper@redhat.com \
    --cc=linux-kernel@vger.kernel.org \
    --cc=mingo@elte.hu \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox