From: Paul Eggert <eggert@cs.ucla.edu>
To: rms@gnu.org
Cc: lekktu@gmail.com, 12450@debbugs.gnu.org
Subject: bug#12450: Remove configure's --without-sync-input option.
Date: Sat, 15 Sep 2012 20:15:36 -0700 [thread overview]
Message-ID: <50554458.6040308@cs.ucla.edu> (raw)
In-Reply-To: <E1TD0hX-0007c6-C5@fencepost.gnu.org>
On 09/15/2012 03:18 PM, Richard Stallman wrote:
> I have a vague memory that the sync input code had an important flaw
> -- that for certain display-updating tasks (perhaps
> mouse-highlighting) it could cause a delay until Emacs was read to
> accept input, which the other code could do instantly.
>
> I don't know if this is true now, and I'm not sure of the memory at all.
> But it would be good to investigate this question.
Yes, that topic came up in 2008 when SYNC_INPUT was made the
default on non-Windows hosts. That discussion concluded that it's
not a problem in practice, because SYNC_INPUT does not postpone
X11 event processing indefinitely; it postpones it only until the
next QUIT or UNBLOCK_INPUT. Please see Stefan's comment in
<http://lists.gnu.org/archive/html/emacs-devel/2008-03/msg01368.html>,
along with the surrounding thread. The remaining issues noted in
that thread all seem to have been fixed since then, for the
SYNC_INPUT case.
next prev parent reply other threads:[~2012-09-16 3:15 UTC|newest]
Thread overview: 43+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-15 7:54 bug#12450: Remove configure's --without-sync-input option Paul Eggert
2012-09-15 9:32 ` Eli Zaretskii
2012-09-15 10:14 ` Paul Eggert
2012-09-15 11:03 ` Eli Zaretskii
2012-09-15 19:59 ` Paul Eggert
2012-09-15 20:15 ` Eli Zaretskii
2012-09-15 20:31 ` Paul Eggert
2012-09-16 6:33 ` Eli Zaretskii
2012-09-16 7:47 ` Paul Eggert
2012-09-16 8:05 ` Eli Zaretskii
2012-09-16 8:17 ` Paul Eggert
2012-09-16 8:21 ` Eli Zaretskii
2012-09-16 8:24 ` Eli Zaretskii
2012-09-16 8:34 ` Paul Eggert
2012-09-16 8:53 ` Eli Zaretskii
2012-09-15 21:12 ` Stefan Monnier
2012-09-16 5:55 ` Eli Zaretskii
2012-09-16 14:58 ` Stefan Monnier
2012-09-16 15:45 ` Eli Zaretskii
2012-09-16 16:30 ` Paul Eggert
2012-09-16 18:40 ` Eli Zaretskii
2012-09-16 19:55 ` Jan Djärv
2012-09-16 18:37 ` Stefan Monnier
2012-09-16 9:33 ` Daniel Colascione
2012-09-16 10:43 ` Eli Zaretskii
2012-09-16 15:10 ` Stefan Monnier
2012-09-16 15:40 ` Eli Zaretskii
2012-09-15 22:18 ` Richard Stallman
2012-09-16 3:15 ` Paul Eggert [this message]
2012-09-16 6:10 ` Eli Zaretskii
2012-09-16 8:23 ` Paul Eggert
2012-09-16 8:32 ` Eli Zaretskii
2012-09-16 21:48 ` Paul Eggert
2012-09-17 7:42 ` Eli Zaretskii
2012-09-21 20:50 ` Paul Eggert
2012-09-22 9:03 ` Eli Zaretskii
2012-09-22 9:34 ` Paul Eggert
2012-09-22 9:50 ` Eli Zaretskii
2012-09-22 10:01 ` Paul Eggert
2012-09-16 9:52 ` Daniel Colascione
2012-09-16 10:44 ` Eli Zaretskii
2012-09-16 10:56 ` Daniel Colascione
2012-09-17 7:41 ` Eli Zaretskii
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=50554458.6040308@cs.ucla.edu \
--to=eggert@cs.ucla.edu \
--cc=12450@debbugs.gnu.org \
--cc=lekktu@gmail.com \
--cc=rms@gnu.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
Code repositories for project(s) associated with this external index
https://git.savannah.gnu.org/cgit/emacs.git
https://git.savannah.gnu.org/cgit/emacs/org-mode.git
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.