From: ludovic.courtes@inria.fr (Ludovic Courtès)
To: 14640@debbugs.gnu.org
Subject: bug#14640: SA_RESTART prevents execution of signal handlers
Date: Mon, 17 Jun 2013 15:54:45 +0200 [thread overview]
Message-ID: <87sj0gx2oq.fsf@inria.fr> (raw)
When using SA_RESTART, signal handlers are never executed, as in this
example (checked on 2.0.9+):
--8<---------------cut here---------------start------------->8---
(sigaction SIGALRM
(lambda (signum)
(pk 'sig signum))
SA_RESTART)
(alarm 3)
(pk 'char (read-char))
--8<---------------cut here---------------end--------------->8---
Presumably this is because the read(2) syscall is automatically
restarted, leaving no chance for the handler async to run.
Ludo’.
next reply other threads:[~2013-06-17 13:54 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-17 13:54 Ludovic Courtès [this message]
2016-06-21 6:37 ` bug#14640: SA_RESTART prevents execution of signal handlers Andy Wingo
2016-06-21 7:48 ` Ludovic Courtès
2016-06-21 7:59 ` Andy Wingo
2016-06-21 9:46 ` Ludovic Courtès
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