From: Ihor Radchenko <yantar92@posteo.net>
To: Eli Zaretskii <eliz@gnu.org>
Cc: Po Lu <luangruo@yahoo.com>,
acm@muc.de, incal@dataswamp.org, emacs-devel@gnu.org
Subject: Re: Emacs design and architecture. How about copy-on-write?
Date: Thu, 21 Sep 2023 10:08:21 +0000 [thread overview]
Message-ID: <8734z7260a.fsf@localhost> (raw)
In-Reply-To: <83v8c5awj0.fsf@gnu.org>
Eli Zaretskii <eliz@gnu.org> writes:
>> We will have a window whose point does not reflect its contents on the
>> display. A supervening redisplay within the main thread will give due
>> consideration to its new value when it does transpire.
>
> I don't understand why only the main thread is allowed to do that.
> What is special in the main thread wrt redisplay that other threads
> are forbidden from doing that? Would it be okay to have a separate
> non-main redisplay thread, for example? if not, why not?
Apart from toolkit considerations, consider two asynchronous threads
requesting to display something in the echo area. We cannot allow one
thread "cancel" displaying its message by another thread - this will
lose one of the messages that should be displayed to user. So, there at
least should be some kind of queue for threads trying to display
something in the same window.
Another scenario is one thread displaying multiline message while
another thread displaying a window adjacent to echo area. Let's say that
the thread redisplaying window started running first, considered its
window geometry, and started calculating the glyph matrix according to
the known number of lines fitting that window height. Then, "message"
thread wants to resize echo area to fit its multiline message. What
should the "window" thread do? Should it cancel its redisplay? Restart
it? Wait for the "message" thread to finish? It is not very clear and
likely depend on the specific scenario at hand.
--
Ihor Radchenko // yantar92,
Org mode contributor,
Learn more about Org mode at <https://orgmode.org/>.
Support Org development at <https://liberapay.com/org-mode>,
or support my work at <https://liberapay.com/yantar92>
next prev parent reply other threads:[~2023-09-21 10:08 UTC|newest]
Thread overview: 373+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-27 15:14 Shrinking the C core Arthur Miller
2023-08-27 16:29 ` Eli Zaretskii
2023-08-28 5:32 ` Gerd Möllmann
2023-08-28 6:23 ` Arthur Miller
2023-08-28 6:21 ` Arthur Miller
2023-08-28 1:31 ` Richard Stallman
2023-08-28 5:50 ` Arthur Miller
2023-08-28 12:20 ` Po Lu
2023-08-28 14:39 ` Arthur Miller
2023-08-28 15:17 ` Po Lu
2023-08-29 2:41 ` Arthur Miller
2023-08-28 1:41 ` Po Lu
2023-08-28 2:53 ` chad
2023-08-28 3:43 ` Emanuel Berg
2023-08-28 4:53 ` Arthur Miller
2023-08-28 5:36 ` Po Lu
2023-08-28 6:55 ` Arthur Miller
2023-08-28 7:31 ` Po Lu
2023-08-28 8:06 ` Ihor Radchenko
2023-08-28 14:30 ` Arthur Miller
2023-08-28 15:09 ` Ihor Radchenko
2023-08-29 2:20 ` Arthur Miller
2023-08-28 15:14 ` Po Lu
2023-08-29 2:36 ` Arthur Miller
2023-08-29 4:07 ` Po Lu
2023-08-31 1:07 ` Emanuel Berg
2023-08-28 14:08 ` Arthur Miller
2023-08-28 15:08 ` Po Lu
2023-08-29 2:06 ` Arthur Miller
2023-08-29 4:15 ` Po Lu
2023-08-29 11:50 ` Eli Zaretskii
2023-08-29 3:57 ` Arthur Miller
2023-09-01 1:18 ` Richard Stallman
2023-08-31 2:07 ` Richard Stallman
2023-09-01 14:58 ` Arthur Miller
2023-09-01 16:36 ` tomas
2023-09-04 1:32 ` Richard Stallman
2023-09-04 1:44 ` Emanuel Berg
2023-09-04 5:49 ` Rudolf Schlatte
2023-09-04 14:08 ` Emanuel Berg
2023-09-07 1:21 ` Richard Stallman
2023-09-07 1:54 ` Emanuel Berg
2023-09-07 7:02 ` tomas
2023-09-07 7:36 ` Alfred M. Szmidt
2023-09-07 7:56 ` Emanuel Berg
2023-09-07 8:19 ` Ihor Radchenko
2023-09-07 8:39 ` Emanuel Berg
2023-09-07 9:28 ` Alfred M. Szmidt
2023-09-09 1:00 ` Emanuel Berg
2023-09-09 6:25 ` Po Lu
2023-09-09 7:24 ` Eli Zaretskii
2023-09-07 9:31 ` Eli Zaretskii
2023-09-07 9:39 ` Ihor Radchenko
2023-09-09 1:06 ` Emanuel Berg
2023-09-11 0:43 ` Richard Stallman
2023-09-11 12:24 ` Eli Zaretskii
2023-09-11 12:43 ` tomas
2023-09-13 5:59 ` Emanuel Berg
2023-09-12 4:44 ` Gerd Möllmann
2023-09-12 12:25 ` João Távora
2023-09-12 11:31 ` Lynn Winebarger
2023-09-12 13:00 ` Emacs design and architecture (was: Shrinking the C core) Eli Zaretskii
2023-09-13 20:52 ` Lynn Winebarger
2023-09-13 21:19 ` Christopher Dimech
2023-09-14 6:01 ` Eli Zaretskii
2023-09-15 0:13 ` Richard Stallman
2023-09-15 4:39 ` Emacs design and architecture Werner LEMBERG
2023-09-17 0:43 ` Richard Stallman
2023-09-17 13:22 ` Werner LEMBERG
2023-09-14 5:57 ` Emacs design and architecture (was: Shrinking the C core) Eli Zaretskii
2023-09-14 6:30 ` Emacs design and architecture Gerd Möllmann
2023-09-14 6:38 ` Po Lu
2023-09-14 6:49 ` Gerd Möllmann
2023-09-14 15:03 ` Helmut Eller
2023-09-14 15:30 ` Gerd Möllmann
2023-09-14 16:21 ` Helmut Eller
2023-09-17 0:46 ` Richard Stallman
2023-09-17 13:02 ` Björn Bidar
2023-09-19 10:19 ` Richard Stallman
2023-09-14 16:23 ` Philip Kaludercic
2023-09-14 16:50 ` joakim
2023-09-14 16:30 ` Emacs design and architecture (was: Shrinking the C core) Lynn Winebarger
2023-09-14 16:52 ` Eli Zaretskii
2023-09-14 21:35 ` Dmitry Gutov
2023-09-15 5:50 ` Eli Zaretskii
2023-09-15 6:51 ` Yuri Khan
2023-09-15 7:23 ` Emacs design and architecture Max Brieiev
2023-09-15 7:30 ` Emacs design and architecture (was: Shrinking the C core) Eli Zaretskii
2023-09-15 9:32 ` Emacs design and architecture Gerd Möllmann
2023-09-15 15:52 ` Dmitry Gutov
2023-09-15 18:36 ` Gerd Möllmann
2023-09-15 18:42 ` Eli Zaretskii
2023-09-15 19:19 ` Gerd Möllmann
2023-09-15 22:20 ` Dmitry Gutov
2023-09-15 23:58 ` Emanuel Berg
2023-09-16 6:00 ` Eli Zaretskii
2023-09-17 12:16 ` Emanuel Berg
2023-09-17 14:24 ` Eli Zaretskii
2023-09-17 15:36 ` Emacs design and architecture. How about copy-on-write? Alan Mackenzie
2023-09-18 10:30 ` Eli Zaretskii
2023-09-18 11:38 ` Alan Mackenzie
2023-09-18 12:08 ` Eli Zaretskii
2023-09-18 12:49 ` Ihor Radchenko
2023-09-18 14:27 ` Eli Zaretskii
2023-09-18 15:55 ` Ihor Radchenko
2023-09-18 17:47 ` Eli Zaretskii
2023-09-18 22:48 ` Emanuel Berg
2023-09-19 10:53 ` Eli Zaretskii
2023-09-19 11:14 ` Emanuel Berg
2023-09-19 12:37 ` Ihor Radchenko
2023-09-19 19:21 ` Emanuel Berg
2023-09-20 9:56 ` Ihor Radchenko
2023-09-22 15:50 ` Emanuel Berg
2023-09-22 16:15 ` Ihor Radchenko
2023-09-22 16:22 ` Emanuel Berg
2023-09-22 18:08 ` Eli Zaretskii
2023-09-19 19:34 ` Emanuel Berg
2023-09-20 9:59 ` Ihor Radchenko
2023-09-20 10:22 ` Po Lu
2023-09-20 10:56 ` Ihor Radchenko
2023-09-20 11:11 ` Po Lu
2023-09-20 11:53 ` Ihor Radchenko
2023-09-20 11:58 ` Po Lu
2023-09-20 12:05 ` Ihor Radchenko
2023-09-20 13:35 ` Po Lu
2023-09-20 15:53 ` Eli Zaretskii
2023-09-21 0:55 ` Po Lu
2023-09-21 3:35 ` Po Lu
2023-09-21 7:27 ` Eli Zaretskii
2023-09-21 7:34 ` Po Lu
2023-09-21 8:13 ` Eli Zaretskii
2023-09-21 8:35 ` Ihor Radchenko
2023-09-21 9:59 ` Eli Zaretskii
2023-09-21 10:13 ` Ihor Radchenko
2023-09-21 11:49 ` Po Lu
2023-09-21 23:43 ` Dmitry Gutov
2023-09-21 12:57 ` Eli Zaretskii
2023-09-21 13:12 ` Po Lu
2023-09-21 13:29 ` Eli Zaretskii
2023-09-21 13:35 ` Po Lu
2023-09-21 13:49 ` Eli Zaretskii
2023-09-21 13:57 ` Po Lu
2023-09-21 14:10 ` Eli Zaretskii
2023-09-21 9:14 ` Po Lu
2023-09-22 15:59 ` Emanuel Berg
2023-09-22 16:45 ` [External] : " Drew Adams
2023-09-25 13:31 ` Emanuel Berg
2023-09-19 12:38 ` Eli Zaretskii
2023-09-19 12:57 ` Po Lu
2023-09-19 14:36 ` Eli Zaretskii
2023-09-20 1:05 ` Po Lu
2023-09-20 12:02 ` Eli Zaretskii
2023-09-20 12:09 ` Ihor Radchenko
2023-09-20 12:27 ` Po Lu
2023-09-19 19:38 ` Emanuel Berg
2023-09-20 12:35 ` Eli Zaretskii
2023-09-22 14:22 ` Emanuel Berg
2023-09-22 15:51 ` Eli Zaretskii
2023-09-22 16:00 ` Emanuel Berg
2023-09-22 19:00 ` Eli Zaretskii
2023-09-22 21:14 ` Emanuel Berg
2023-09-22 16:11 ` Ihor Radchenko
2023-09-22 16:14 ` Eli Zaretskii
2023-09-22 16:27 ` Ihor Radchenko
2023-09-22 17:19 ` Emanuel Berg
2023-09-22 16:13 ` tomas
2023-09-19 11:36 ` Ihor Radchenko
2023-09-19 12:34 ` Eli Zaretskii
2023-09-19 13:35 ` Ihor Radchenko
2023-09-19 14:14 ` Eli Zaretskii
2023-09-19 15:15 ` Dmitry Gutov
2023-09-19 15:37 ` Eli Zaretskii
2023-09-19 16:01 ` Dmitry Gutov
2023-09-19 17:54 ` Eli Zaretskii
2023-09-19 20:21 ` Dmitry Gutov
2023-09-20 11:28 ` Eli Zaretskii
2023-09-20 11:38 ` Ihor Radchenko
2023-09-20 14:35 ` Eli Zaretskii
2023-09-21 10:41 ` Ihor Radchenko
2023-09-21 13:26 ` Eli Zaretskii
2023-09-22 10:05 ` Ihor Radchenko
2023-09-22 11:53 ` Eli Zaretskii
2023-09-22 12:49 ` Ihor Radchenko
2023-09-22 13:01 ` Eli Zaretskii
2023-09-22 13:08 ` Ihor Radchenko
2023-09-20 12:21 ` Po Lu
2023-09-20 14:51 ` Eli Zaretskii
2023-09-20 19:39 ` Dmitry Gutov
2023-09-21 4:31 ` Eli Zaretskii
2023-09-21 10:41 ` Dmitry Gutov
2023-09-21 22:21 ` Stefan Kangas
2023-09-21 23:01 ` Dmitry Gutov
2023-09-21 0:41 ` Po Lu
2023-09-21 2:23 ` Adam Porter
2023-09-21 2:53 ` Po Lu
2023-09-21 7:25 ` Eli Zaretskii
2023-09-21 7:48 ` Po Lu
2023-09-21 8:18 ` Eli Zaretskii
2023-09-21 9:25 ` Po Lu
2023-09-21 9:39 ` Ihor Radchenko
2023-09-21 10:36 ` Dmitry Gutov
2023-09-21 10:48 ` Ihor Radchenko
2023-09-21 11:10 ` Dmitry Gutov
2023-09-21 11:17 ` Ihor Radchenko
2023-09-21 11:27 ` Dmitry Gutov
2023-09-21 11:36 ` Debouncing slow mode line constructs (was: Emacs design and architecture. How about copy-on-write?) Ihor Radchenko
2023-09-21 11:56 ` Dmitry Gutov
2023-09-22 10:07 ` Ihor Radchenko
2023-09-22 11:55 ` Eli Zaretskii
2023-09-22 12:50 ` Ihor Radchenko
2023-09-22 13:04 ` Eli Zaretskii
2023-09-22 13:10 ` Ihor Radchenko
2023-09-22 13:14 ` Eli Zaretskii
2023-09-23 10:54 ` Ihor Radchenko
2023-09-21 13:48 ` Eli Zaretskii
2023-09-22 10:23 ` Ihor Radchenko
2023-09-22 12:08 ` Eli Zaretskii
2023-09-22 13:03 ` Ihor Radchenko
2023-09-22 13:06 ` Eli Zaretskii
2023-09-22 13:19 ` Ihor Radchenko
2023-09-22 14:41 ` Eli Zaretskii
2023-09-23 11:10 ` Ihor Radchenko
2023-09-22 12:52 ` Dmitry Gutov
2023-09-22 15:05 ` [External] : " Drew Adams
2023-09-21 13:00 ` Emacs design and architecture. How about copy-on-write? Eli Zaretskii
2023-09-21 13:30 ` Dmitry Gutov
2023-09-21 13:44 ` Eli Zaretskii
2023-09-22 1:29 ` Dmitry Gutov
2023-09-22 10:51 ` Ihor Radchenko
2023-09-22 10:28 ` Ihor Radchenko
2023-09-22 12:26 ` Eli Zaretskii
2023-09-22 13:06 ` Ihor Radchenko
2023-09-22 13:12 ` Eli Zaretskii
2023-09-21 10:03 ` Eli Zaretskii
2023-09-20 19:22 ` Dmitry Gutov
2023-09-21 4:29 ` Eli Zaretskii
2023-09-21 20:24 ` Richard Stallman
2023-09-20 9:47 ` Ihor Radchenko
2023-09-20 14:02 ` Eli Zaretskii
2023-09-21 10:29 ` Ihor Radchenko
2023-09-21 14:02 ` Eli Zaretskii
2023-09-22 10:48 ` Ihor Radchenko
2023-09-22 12:34 ` Eli Zaretskii
2023-09-23 11:07 ` Ihor Radchenko
2023-09-23 11:23 ` Eli Zaretskii
2023-09-23 12:53 ` Dmitry Gutov
2023-09-23 13:01 ` Eli Zaretskii
2023-09-23 13:08 ` Dmitry Gutov
2023-09-23 13:15 ` Eli Zaretskii
2023-09-23 14:09 ` Ihor Radchenko
2023-09-24 0:29 ` Dmitry Gutov
2023-09-23 14:23 ` Yuri Khan
2023-09-23 14:25 ` Dmitry Gutov
2023-09-18 13:30 ` Po Lu
2023-09-18 13:34 ` Po Lu
2023-09-18 13:55 ` Ihor Radchenko
2023-09-18 15:04 ` Eli Zaretskii
2023-09-18 23:41 ` Po Lu
2023-09-19 14:25 ` Eli Zaretskii
2023-09-20 1:01 ` Po Lu
2023-09-20 11:56 ` Eli Zaretskii
2023-09-20 12:13 ` Po Lu
2023-09-20 14:46 ` Eli Zaretskii
2023-09-20 18:50 ` Dmitry Gutov
2023-09-21 4:23 ` Eli Zaretskii
2023-09-21 10:08 ` Ihor Radchenko [this message]
2023-09-21 10:12 ` Eli Zaretskii
2023-09-21 10:35 ` Ihor Radchenko
2023-09-21 13:13 ` Eli Zaretskii
2023-09-19 21:37 ` Björn Bidar
2023-09-19 10:20 ` Richard Stallman
2023-09-18 21:38 ` Emacs design and architecture Emanuel Berg
2023-09-16 8:41 ` Gerd Möllmann
2023-09-16 11:02 ` Dmitry Gutov
2023-09-16 11:59 ` Sebastian Miele
2023-09-16 13:00 ` Po Lu
2023-09-16 13:08 ` Gerd Möllmann
2023-09-16 13:25 ` Po Lu
2023-09-16 14:20 ` Björn Bidar
2023-09-16 16:33 ` Dmitry Gutov
2023-09-16 17:07 ` Gerd Möllmann
2023-09-16 17:30 ` Dmitry Gutov
2023-09-16 18:33 ` Gerd Möllmann
2023-09-16 19:18 ` Lynn Winebarger
2023-09-16 20:02 ` Gerd Möllmann
2023-09-16 19:40 ` Dmitry Gutov
2023-09-16 20:01 ` Gerd Möllmann
2023-09-16 23:50 ` Po Lu
2023-09-16 16:24 ` Dmitry Gutov
2023-09-16 23:46 ` Po Lu
2023-09-17 6:08 ` Immanuel Litzroth
2023-09-17 6:43 ` Po Lu
2023-09-17 18:51 ` Dmitry Gutov
2023-09-18 0:11 ` Po Lu
2023-09-18 10:46 ` Dmitry Gutov
2023-09-18 11:12 ` Po Lu
2023-09-18 11:19 ` Dmitry Gutov
2023-09-20 18:35 ` Richard Stallman
2023-09-20 18:59 ` Eli Zaretskii
2023-09-17 23:02 ` Richard Stallman
2023-09-19 18:22 ` chad
2023-09-21 20:26 ` Richard Stallman
2023-09-22 0:31 ` Bob Rogers
2023-09-23 7:13 ` Richard Stallman
2023-09-18 18:48 ` Dmitry Gutov
2023-09-19 23:14 ` Richard Stallman
2023-09-17 23:03 ` Richard Stallman
2023-09-15 23:26 ` Emanuel Berg
2023-09-16 9:09 ` Gerd Möllmann
2023-09-17 7:34 ` Gerd Möllmann
2023-09-17 15:44 ` Helmut Eller
2023-09-17 16:23 ` Eli Zaretskii
2023-09-18 6:36 ` Gerd Möllmann
2023-09-15 15:10 ` Emacs design and architecture (was: Shrinking the C core) Dmitry Gutov
2023-09-15 15:13 ` Dmitry Gutov
2023-09-17 0:45 ` Richard Stallman
2023-09-17 6:31 ` Eli Zaretskii
2023-09-19 10:22 ` Richard Stallman
2023-09-19 14:31 ` Eli Zaretskii
2023-10-12 12:27 ` Richard Stallman
2023-09-13 6:12 ` Shrinking the C core Emanuel Berg
2023-09-05 4:23 ` Arthur Miller
2023-09-06 0:58 ` Richard Stallman
2023-09-06 1:12 ` Emanuel Berg
2023-09-06 5:04 ` Arthur Miller
2023-09-06 11:29 ` Alan Mackenzie
2023-09-06 23:03 ` Emanuel Berg
2023-09-07 7:00 ` tomas
2023-09-07 7:23 ` Emanuel Berg
2023-09-07 5:30 ` Po Lu
2023-09-07 6:15 ` Emanuel Berg
2023-09-11 0:43 ` Richard Stallman
2023-09-11 12:05 ` Eli Zaretskii
2023-09-12 23:55 ` Richard Stallman
2023-09-13 6:34 ` Emanuel Berg
2023-09-07 8:51 ` Manuel Giraud via Emacs development discussions.
2023-09-07 9:20 ` Po Lu
2023-09-07 9:34 ` Eli Zaretskii
2023-09-08 2:00 ` Arthur Miller
2023-09-08 7:35 ` Gerd Möllmann
2023-09-09 10:05 ` João Távora
2023-09-08 15:38 ` [External] : " Drew Adams
2023-09-09 11:55 ` Arthur Miller
2023-09-09 12:55 ` Eli Zaretskii
2023-09-09 13:20 ` Arthur Miller
2023-09-10 0:09 ` Drew Adams
2023-09-11 0:40 ` Richard Stallman
2023-09-11 15:10 ` João Távora
2023-09-11 16:12 ` Drew Adams
2023-09-11 20:37 ` Tomas Hlavaty
2023-09-11 21:10 ` João Távora
2023-09-12 19:52 ` Tomas Hlavaty
2023-09-12 20:52 ` João Távora
2023-09-15 8:43 ` Emanuel Berg
2023-09-11 21:09 ` Eric S. Raymond
2023-09-12 2:05 ` Arthur Miller
2023-09-12 4:38 ` Gerd Möllmann
2023-09-12 5:48 ` Arthur Miller
2023-09-12 2:30 ` Arthur Miller
2023-09-12 12:15 ` Emanuel Berg
2023-09-12 12:32 ` Emanuel Berg
2023-09-12 19:57 ` Tomas Hlavaty
2023-09-13 0:00 ` Richard Stallman
2023-09-08 17:58 ` Bob Rogers
2023-09-15 21:59 ` Emanuel Berg
2023-09-17 23:03 ` Richard Stallman
2023-09-09 0:39 ` Richard Stallman
2023-09-09 12:50 ` Arthur Miller
2023-09-12 0:27 ` Richard Stallman
2023-08-28 7:45 ` Andrea Monaco
2023-08-28 14:35 ` Arthur Miller
-- strict thread matches above, loose matches on Subject: below --
2023-09-20 20:51 Emacs design and architecture. How about copy-on-write? zhanghj
2023-09-21 9:43 Payas Relekar
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