From: Eli Zaretskii <eliz@gnu.org>
To: mituharu@math.s.chiba-u.ac.jp
Cc: 28630@debbugs.gnu.org, tom@tromey.com, agrambot@gmail.com
Subject: bug#28630: 27.0.50; C-g while a non-main thread is sitting crashes Emacs
Date: Mon, 09 Oct 2017 14:01:05 +0300 [thread overview]
Message-ID: <834lr8shzi.fsf@gnu.org> (raw)
In-Reply-To: <c537db12f0f40f1ddf2b243a7ad4f0df.squirrel@weber.math.s.chiba-u.ac.jp> (mituharu@math.s.chiba-u.ac.jp)
> Date: Mon, 9 Oct 2017 19:34:28 +0900
> From: mituharu@math.s.chiba-u.ac.jp
> Cc: agrambot@gmail.com,
> 28630@debbugs.gnu.org,
> tom@tromey.com
>
> In both Examples, the main thread is not blocking at pselect, but
> thread-join (sys_cond_wait internally), i.e., without monitoring
> the keyboard descriptor. The secondary one is blocking at pselect
> in sit-for (Example 1) or sleep-for (Example 2). So "none of
> other threads is monitoring the keyboard input channel" part
> becomes true for the secondary thread after returning from
> pselect.
OK, with thread-join this is so. Sorry for missing that part.
In any case, on TTY frames C-g triggers SIGINT, and we always deliver
signals to the main thread. If we want to be able to handle keyboard
input in non-main threads, we should change how signals are handled in
Emacs.
next prev parent reply other threads:[~2017-10-09 11:01 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-09-28 7:22 bug#28630: 27.0.50; C-g while a non-main thread is sitting crashes Emacs Alex
2017-10-01 3:18 ` Alex
2017-10-01 15:01 ` Eli Zaretskii
2017-10-01 18:10 ` Alex
2017-10-01 18:32 ` Eli Zaretskii
2017-10-02 4:30 ` YAMAMOTO Mitsuharu
2017-10-02 12:43 ` YAMAMOTO Mitsuharu
2017-10-02 16:08 ` Eli Zaretskii
2017-10-04 7:39 ` Eli Zaretskii
2017-10-04 7:49 ` YAMAMOTO Mitsuharu
2017-10-04 8:16 ` Eli Zaretskii
2017-10-04 8:32 ` YAMAMOTO Mitsuharu
2017-10-04 9:23 ` Eli Zaretskii
2017-10-05 3:27 ` YAMAMOTO Mitsuharu
2017-10-05 7:24 ` Eli Zaretskii
2017-10-07 13:53 ` Philipp Stephani
2017-10-07 14:24 ` Eli Zaretskii
2017-10-07 14:50 ` Eli Zaretskii
2017-10-09 8:21 ` YAMAMOTO Mitsuharu
2017-10-09 8:38 ` Eli Zaretskii
2017-10-09 10:34 ` mituharu
2017-10-09 11:01 ` Eli Zaretskii [this message]
2017-10-04 7:39 ` YAMAMOTO Mitsuharu
2017-10-04 8:14 ` Eli Zaretskii
2017-10-02 5:11 ` Eric Abrahamsen
2017-10-02 15:54 ` Eli Zaretskii
2017-10-03 9:35 ` Dmitry Gutov
2017-10-03 14:38 ` Eli Zaretskii
2017-10-03 14:50 ` Philipp Stephani
2017-10-03 15:45 ` Eli Zaretskii
2017-10-03 16:22 ` Philipp Stephani
2017-10-03 16:35 ` Eli Zaretskii
2017-10-03 17:04 ` Philipp Stephani
2017-10-01 10:08 ` Alan Third
2017-10-01 15:03 ` Eli Zaretskii
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