From: Julian Graham <joolean@gmail.com>
To: Mark H Weaver <mhw@netris.org>
Cc: "Guile Users" <guile-user@gnu.org>, "Ludovic Courtès" <ludo@gnu.org>
Subject: Re: Why launch the Guile signal delivery thread on exit? (was Re: guile 2.0.9 build on mingw)
Date: Wed, 19 Jun 2013 12:06:41 -0400 [thread overview]
Message-ID: <CANdC_RBannDr+-mrkgNE0N8J7kYiwbQzRgpeD-AZH5R+xoLbcw@mail.gmail.com> (raw)
In-Reply-To: <87li67cck5.fsf_-_@tines.lan>
Hi Mark and Eli,
On Tue, Jun 18, 2013 at 5:51 PM, Mark H Weaver <mhw@netris.org> wrote:
> Could you help us understand some code you added to Guile in 2007?
Wow, that was a long time ago! :)
> Julian, can you remember why you did this? I don't understand the
> comment above. What does "it" refer to? I would that guess that "it"
> is the signal handling thread, but how could we be shutting down that
> thread if it hadn't yet been launched?
My memories a bit foggy (and I won't be able to take a deep dive into
the code until I get home from work), but my recollection is that
there was something slightly dangerous about calling
`scm_i_close_signal_pipe' if the signal handling thread hadn't been
launched, since if it launched during shutdown it would hang. (See my
comments in `scm_i_close_signal_pipe' to that effect.) So I think I
opted to start it explicitly to avoid this possibility. Admittedly
it's not terribly elegant.
Does that help?
Regards,
Julian
next prev parent reply other threads:[~2013-06-19 16:06 UTC|newest]
Thread overview: 64+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-05-20 19:46 guile 2.0.9 build on mingw Panicz Maciej Godek
2013-05-20 20:05 ` Eli Zaretskii
2013-05-20 20:46 ` Andy Wingo
2013-05-20 21:09 ` objc
2013-05-21 2:43 ` Eli Zaretskii
2013-05-22 15:26 ` Eli Zaretskii
2013-06-07 8:37 ` Eli Zaretskii
2013-06-07 12:44 ` Ludovic Courtès
2013-06-07 14:59 ` Eli Zaretskii
2013-06-09 17:10 ` Eli Zaretskii
2013-06-09 20:33 ` Ludovic Courtès
2013-06-09 21:16 ` Andy Wingo
2013-06-09 21:35 ` Ludovic Courtès
2013-06-10 16:18 ` Eli Zaretskii
2013-06-10 16:18 ` Eli Zaretskii
2013-06-10 16:23 ` Eli Zaretskii
2013-06-10 19:09 ` Mark H Weaver
2013-06-10 19:49 ` Eli Zaretskii
2013-06-10 20:54 ` Mark H Weaver
2013-06-11 16:53 ` Eli Zaretskii
2013-06-11 22:11 ` Ludovic Courtès
2013-06-12 17:46 ` Eli Zaretskii
2013-06-18 21:51 ` Why launch the Guile signal delivery thread on exit? (was Re: guile 2.0.9 build on mingw) Mark H Weaver
2013-06-19 15:51 ` Eli Zaretskii
2013-06-19 16:06 ` Julian Graham [this message]
2013-06-19 19:20 ` Ludovic Courtès
2013-06-12 17:57 ` guile 2.0.9 build on mingw Eli Zaretskii
2013-06-13 13:26 ` Eli Zaretskii
2013-06-16 14:19 ` Ludovic Courtès
2013-06-13 13:33 ` Eli Zaretskii
2013-06-16 14:36 ` Ludovic Courtès
2013-06-16 15:40 ` Eli Zaretskii
2013-06-16 14:55 ` Ludovic Courtès
2013-06-16 15:47 ` Eli Zaretskii
2013-06-16 18:59 ` Ludovic Courtès
2013-06-13 13:40 ` Eli Zaretskii
2013-06-16 14:59 ` Ludovic Courtès
2013-06-17 15:41 ` Eli Zaretskii
2013-06-18 20:45 ` Ludovic Courtès
2013-06-18 22:28 ` Mark H Weaver
2013-06-19 3:03 ` Eli Zaretskii
2013-06-19 19:26 ` Ludovic Courtès
2013-06-19 20:02 ` Eli Zaretskii
2013-06-19 2:59 ` Eli Zaretskii
2013-06-19 15:56 ` Eli Zaretskii
2013-06-19 19:38 ` Ludovic Courtès
2013-06-13 13:41 ` Eli Zaretskii
2013-06-16 15:04 ` Ludovic Courtès
2013-06-16 15:48 ` Eli Zaretskii
2013-06-16 14:44 ` Ludovic Courtès
2013-06-16 15:41 ` Eli Zaretskii
2013-06-12 17:59 ` Eli Zaretskii
2013-06-16 14:46 ` Ludovic Courtès
2013-06-12 18:02 ` Eli Zaretskii
2013-06-16 19:50 ` Ludovic Courtès
2013-06-16 20:22 ` Eli Zaretskii
2013-06-17 15:45 ` Mark H Weaver
2013-06-18 17:17 ` Eli Zaretskii
2013-06-18 19:31 ` Eli Zaretskii
2013-06-18 20:19 ` Ludovic Courtès
2013-06-19 2:53 ` Eli Zaretskii
2013-06-19 19:28 ` Ludovic Courtès
2013-06-19 19:56 ` Eli Zaretskii
2013-05-26 20:41 ` Panicz Maciej Godek
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