From: ludo@gnu.org (Ludovic Courtès)
To: Doug Evans <xdje42@gmail.com>
Cc: guile-devel@gnu.org
Subject: Signal delivery
Date: Tue, 18 Feb 2014 18:42:36 +0100 [thread overview]
Message-ID: <87ob2471wz.fsf_-_@gnu.org> (raw)
In-Reply-To: <CAP9bCMSzaQGktnNJfB388v50uRFxLEtug7EbdA9nsWVjyhJcfQ@mail.gmail.com> (Doug Evans's message of "Tue, 18 Feb 2014 09:31:00 -0800")
(Dropping GDB.)
Doug Evans <xdje42@gmail.com> skribis:
> On Tue, Feb 18, 2014 at 3:20 AM, Ludovic Courtès <ludo@gnu.org> wrote:
[...]
>> (I think we should aim to get rid of the signal-delivery thread
>> eventually, and I remember Mark mentioned it before too.)
>
> Note that Python queues the asyncs directly from the signal handler,
> even when it has thread support.
> I'm not sure if there are any problems in Python's implementation;
> asyncs can be queued from any thread but only the main thread runs them.
>
> Guile would need to come up with its own implementation of course;
> plus Guile can direct signals to any thread.
There are two difficulties:
1. The signal handler can only call async-signal-safe functions, which
complicates things.
2. In Guile, the ‘sigaction’ procedure can specify the thread that
will run the async.
Ludo’.
next prev parent reply other threads:[~2014-02-18 17:42 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <wrbvbwejihe.fsf@sspiff.org>
[not found] ` <wrbr471jxjg.fsf@sspiff.org>
[not found] ` <834n3x8o7m.fsf@gnu.org>
2014-02-17 20:59 ` [PATCH v2] Improved ^c support for gdb/guile Doug Evans
2014-02-17 21:13 ` Eli Zaretskii
2014-02-18 0:37 ` Doug Evans
2014-02-18 11:20 ` Ludovic Courtès
2014-02-18 16:01 ` Eli Zaretskii
2014-02-18 16:45 ` Ludovic Courtès
2014-02-18 16:56 ` Eli Zaretskii
2014-02-18 17:45 ` Ludovic Courtès
2014-02-18 17:59 ` Eli Zaretskii
2014-02-18 23:08 ` Ludovic Courtès
2014-02-18 17:32 ` MinGW patches Ludovic Courtès
2014-02-18 18:16 ` Eli Zaretskii
2014-02-22 10:33 ` [PATCH] Remove unneeded HAVE_POSIX conditionals Eli Zaretskii
2014-02-22 14:52 ` Mark H Weaver
2014-02-22 15:41 ` Eli Zaretskii
2014-02-26 21:42 ` Ludovic Courtès
2014-02-22 10:50 ` [PATCH] Implement open-process and related functions on MinGW Eli Zaretskii
2014-02-22 14:59 ` Mark H Weaver
2014-02-22 15:43 ` Eli Zaretskii
2014-02-22 15:54 ` Mark H Weaver
2014-02-22 16:35 ` Eli Zaretskii
2014-02-23 5:50 ` Mark H Weaver
2014-02-23 17:54 ` Eli Zaretskii
2014-02-24 18:33 ` Mark H Weaver
2014-02-24 21:06 ` Eli Zaretskii
2014-02-28 7:22 ` Mark H Weaver
2014-02-28 9:10 ` Eli Zaretskii
2014-02-28 10:20 ` Mark H Weaver
2014-02-28 11:26 ` Eli Zaretskii
2014-02-24 21:12 ` Eli Zaretskii
2014-02-22 18:20 ` Eli Zaretskii
2014-02-22 22:02 ` Mark H Weaver
2014-02-23 3:45 ` Eli Zaretskii
2014-02-23 4:40 ` Mark H Weaver
2014-02-23 17:46 ` Eli Zaretskii
2014-02-23 20:14 ` Mark H Weaver
2014-02-22 10:57 ` MinGW patches Eli Zaretskii
2014-02-22 12:23 ` Neil Jerram
2014-02-22 13:02 ` Eli Zaretskii
2014-02-22 11:06 ` Eli Zaretskii
2014-02-22 15:59 ` Mark H Weaver
2014-02-22 16:36 ` Eli Zaretskii
2014-02-23 14:21 ` Mark H Weaver
2014-02-23 18:06 ` Eli Zaretskii
2014-02-19 7:50 ` [PATCH v2] Improved ^c support for gdb/guile Mark H Weaver
2014-02-19 16:42 ` Eli Zaretskii
2014-02-18 17:31 ` Doug Evans
2014-02-18 17:42 ` Ludovic Courtès [this message]
2014-02-18 17:56 ` Signal delivery Doug Evans
2014-02-18 23:06 ` Ludovic Courtès
2014-02-19 1:58 ` Doug Evans
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