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From: Eli Zaretskii <eliz@gnu.org>
To: Lars Ingebrigtsen <larsi@gnus.org>
Cc: 50043@debbugs.gnu.org
Subject: bug#50043: 28.0.50; USABLE_SIGOI undef code paths do not work correctly
Date: Fri, 13 Aug 2021 18:51:53 +0300	[thread overview]
Message-ID: <83zgtlbaw6.fsf@gnu.org> (raw)
In-Reply-To: <87mtpla013.fsf@gnus.org> (message from Lars Ingebrigtsen on Fri,  13 Aug 2021 16:31:52 +0200)

> From: Lars Ingebrigtsen <larsi@gnus.org>
> Cc: 50043@debbugs.gnu.org
> Date: Fri, 13 Aug 2021 16:31:52 +0200
> 
> Eli Zaretskii <eliz@gnu.org> writes:
> 
> > can you tell where does it hang, and why?  Bonus points for explaining
> > why the same scenario doesn't hang for USABLE_SIGIO platforms.
> 
> It's hanging here:
> 
> x_get_foreign_selection (Lisp_Object selection_symbol, Lisp_Object target_type,
> 			 Lisp_Object time_stamp, Lisp_Object frame)
> {
> [...]
>   wait_reading_process_output (secs, nsecs, 0, false,
> 			       reading_selection_reply, NULL, 0);
> 
> That is, it's not really hanging hanging, but this sometimes takes a
> couple of seconds without SIGIO, while it returns instantaneously with
> SIGOI.

Do you understand which code un-hangs it when USABLE_SIGIO is defined?
Or is it a SIGIO signal that arrives and does that?  If the latter,
any idea what causes that SIGIO?

Thanks.





  reply	other threads:[~2021-08-13 15:51 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-08-13 11:56 bug#50043: 28.0.50; USABLE_SIGOI undef code paths do not work correctly Lars Ingebrigtsen
2021-08-13 13:16 ` Eli Zaretskii
2021-08-13 14:31   ` Lars Ingebrigtsen
2021-08-13 15:51     ` Eli Zaretskii [this message]
2021-08-14 11:52       ` Lars Ingebrigtsen
2021-11-15 15:19         ` Ken Brown
2021-11-15 17:24           ` Eli Zaretskii
2021-11-15 19:26             ` Ken Brown
2021-11-16 17:44               ` Eli Zaretskii
2021-11-16 23:06                 ` Ken Brown
2021-11-17  7:41                   ` Lars Ingebrigtsen
2021-11-17 14:25                     ` Ken Brown
2021-11-17 13:14                   ` Eli Zaretskii
2021-11-17 14:19                     ` Ken Brown
2021-11-17 14:34                       ` Eli Zaretskii
2021-11-17 14:59                         ` Ken Brown
2021-11-17 16:56                           ` Eli Zaretskii
2021-11-17 17:25                             ` Ken Brown
2021-11-17 17:37                               ` Eli Zaretskii
2021-11-17 17:45                                 ` Ken Brown

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