From: Po Lu via "Bug reports for GNU Emacs, the Swiss army knife of text editors" <bug-gnu-emacs@gnu.org>
To: Spencer Baugh <sbaugh@janestreet.com>
Cc: Eli Zaretskii <eliz@gnu.org>, 63865@debbugs.gnu.org
Subject: bug#63865: 29.0.90; call-process while owning the X selection hangs other processes
Date: Sun, 04 Jun 2023 08:12:34 +0800 [thread overview]
Message-ID: <87sfb8m6fh.fsf@yahoo.com> (raw)
In-Reply-To: <ierh6roafsu.fsf@janestreet.com> (Spencer Baugh's message of "Sat, 03 Jun 2023 08:30:57 -0400")
Spencer Baugh <sbaugh@janestreet.com> writes:
> "Emacs can not respond to selection requests when it is not reading
> keyboard input." sounds like a bug to me! Even if it's hard to fix,
> it's still a bug.
>
> If I'm implementing some package and I decide to use call-process for
> some long operation, then some user uses my package and it runs
> call-process, and they get bored while waiting and switch away from
> Emacs, they'll experience a hang in some other application. That hang
> seems clearly undesirable!
>
> (I should mention that Slack (and possibly all Electron applications)
> have worse behavior than I originally said: They don't just hang on
> paste, their UI hangs completely while Emacs is in call-process. (I
> guess these applications are constantly requesting the selection or
> something?) Which is an extremely bad experience for the users of
> packages which use call-process...)
>
> I'm personally working around this by replacing call-process with
> start-process and accept-process-output. Because otherwise my packages
> (and any other package using call-process ever) will cause random hangs
> in other applications, which is obviously bad and not something anyone
> would want.
>
> So perhaps call-process on Unix should be reimplemented in terms of
> those functions? Or if that would change behavior too much, perhaps
> call-process should be deprecated in favor of some new helper built on
> those?
Do you expect completely arbitrary Lisp code (which may perform _any_
operations, including reading user input) to run inside call-process?
Because Emacs runs such code upon receiving a selection request.
Hangs in badly implemented programs are a small price to pay for such
flexibility. Try getting a clipboard manager: it may resolve the issue.
next prev parent reply other threads:[~2023-06-04 0:12 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-06-03 1:55 bug#63865: 29.0.90; call-process while owning the X selection hangs other processes Spencer Baugh
2023-06-03 6:02 ` Eli Zaretskii
2023-06-03 7:11 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-06-03 9:12 ` Eli Zaretskii
2023-06-03 9:31 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-06-03 11:10 ` Spencer Baugh
2023-06-03 11:16 ` Eli Zaretskii
2023-06-03 12:07 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-06-03 12:30 ` Spencer Baugh
2023-06-03 12:55 ` Eli Zaretskii
2023-06-03 13:10 ` Spencer Baugh
2023-06-03 13:48 ` Eli Zaretskii
2023-06-03 14:12 ` Spencer Baugh
2023-06-03 14:24 ` Eli Zaretskii
2023-06-03 14:41 ` Spencer Baugh
2023-06-03 15:02 ` Eli Zaretskii
2023-06-03 15:34 ` Spencer Baugh
2023-06-03 15:50 ` Eli Zaretskii
2023-06-04 0:18 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-06-03 16:21 ` Andreas Schwab
2023-06-03 17:03 ` Spencer Baugh
2023-06-03 17:07 ` Eli Zaretskii
2023-06-04 0:15 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-06-04 0:13 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-06-04 0:12 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors [this message]
2023-06-23 14:26 ` Spencer Baugh
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
List information: https://www.gnu.org/software/emacs/
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87sfb8m6fh.fsf@yahoo.com \
--to=bug-gnu-emacs@gnu.org \
--cc=63865@debbugs.gnu.org \
--cc=eliz@gnu.org \
--cc=luangruo@yahoo.com \
--cc=sbaugh@janestreet.com \
/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 public inbox
https://git.savannah.gnu.org/cgit/emacs.git
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).