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From: Stefan Monnier <monnier@iro.umontreal.ca>
To: Eli Zaretskii <eliz@gnu.org>
Cc: alexanderm@web.de, yyoncho@gmail.com, emacs-devel@gnu.org
Subject: Re: Questions about throw-on-input
Date: Mon, 11 May 2020 13:27:05 -0400	[thread overview]
Message-ID: <jwva72ebczj.fsf-monnier+emacs@gnu.org> (raw)
In-Reply-To: <83d07abg0v.fsf@gnu.org> (Eli Zaretskii's message of "Mon, 11 May 2020 19:19:44 +0300")

>> > It is unusual for non-main threads to wait for keyboard input
>> > descriptor.  You shouldn't rely on that because it can only work very
>> > rarely, if at all, and when it does, you are likely to see serious
>> > problems.  Normally, the 'pselect' call issued by a non-main thread
>> > will not mark the keyboard descriptor as being waited for.
>> Should input-pending-p and friends catch that case and signal an error, then?
> Do we want that?

I don't know.  But hanging because `select` doesn't return the needed
information doesn't seem right either.

Maybe rather than signal an error, we should somehow make the main
thread run that code, so as to return the right answer?


        Stefan




  reply	other threads:[~2020-05-11 17:27 UTC|newest]

Thread overview: 52+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-10 13:47 Questions about throw-on-input Alexander Miller
2020-05-11 14:13 ` Eli Zaretskii
2020-05-11 15:21   ` Stefan Monnier
2020-05-11 16:19     ` Eli Zaretskii
2020-05-11 17:27       ` Stefan Monnier [this message]
2020-05-11 17:39         ` Alexander Miller
2020-05-11 18:23           ` Eli Zaretskii
2020-05-11 18:24           ` Stefan Monnier
2020-05-11 19:48             ` Alexander Miller
2020-05-11 20:14               ` Stefan Monnier
2020-05-12 22:33                 ` Alexander Miller
2020-05-13 14:43                   ` Eli Zaretskii
2020-05-13 18:47                     ` Alexander Miller
2020-05-14  8:32                     ` Philipp Stephani
2020-05-14 14:23                       ` Eli Zaretskii
2020-05-14 14:37                         ` Philipp Stephani
2020-05-14 16:56                       ` Drew Adams
2020-05-15  3:21                         ` Richard Stallman
2020-05-15  3:54                           ` Stefan Monnier
2020-05-15  8:19                             ` Arthur Miller
2020-05-15 15:45                               ` Stefan Monnier
2020-05-15 16:46                                 ` Yuan Fu
2020-05-15 17:31                                   ` Stefan Monnier
2020-05-15 17:50                                     ` yyoncho
2020-05-15 18:44                                       ` Alexander Miller
2020-05-15 18:55                                         ` Stefan Monnier
2020-05-15 19:46                                         ` Philipp Stephani
2020-05-15 18:00                                     ` Andrea Corallo
2020-05-15 17:35                                 ` Arthur Miller
2020-05-15 19:47                                 ` chad
2020-05-16 11:29                                   ` Eli Zaretskii
2020-05-12  2:39           ` Daniel Colascione
2020-05-12 14:37             ` Eli Zaretskii
2020-05-11 18:17         ` Eli Zaretskii
  -- strict thread matches above, loose matches on Subject: below --
2020-05-09 13:09 Alexander Miller
2020-05-10 11:11 ` yyoncho
2020-05-07  7:31 Ivan Yonchovski
2020-05-07 12:36 ` Eli Zaretskii
2020-05-07 14:28   ` Ivan Yonchovski
2020-05-07 21:11   ` yyoncho
2020-05-08  1:58     ` Stefan Monnier
2020-05-08  4:36       ` yyoncho
2020-05-08  4:43         ` yyoncho
2020-05-12  4:15       ` Michael Heerdegen
2020-05-08 10:41     ` Eli Zaretskii
2020-05-08 11:23       ` Ivan Yonchovski
2020-05-08 11:45         ` Eli Zaretskii
2020-05-08 11:55           ` yyoncho
2020-05-08 14:55         ` Stefan Monnier
2020-05-08 18:04           ` yyoncho
2020-05-07 13:49 ` Stefan Monnier
2020-05-07 15:36   ` Ivan Yonchovski

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