all messages for Emacs-related lists mirrored at yhetil.org
 help / color / mirror / code / Atom feed
From: "Elias Mårtenson" <lokedhs@gmail.com>
To: emacs-devel <emacs-devel@gnu.org>
Subject: call-process blocks the active thread
Date: Fri, 8 Sep 2017 11:00:42 +0800	[thread overview]
Message-ID: <CADtN0WL1G-aUw_BdnLL_5OQ4S9psUZjGs4yee50+3fPLM6BpFg@mail.gmail.com> (raw)

[-- Attachment #1: Type: text/plain, Size: 437 bytes --]

I was trying to use ‘call-process’ in a thread in order to not have to deal
with process buffers and the like while still being able to run an external
program in the background.

As it turns out, ‘call-process’ hangs all of Emacs while the external
program is run.

To reproduce, simply type M-: (make-thread (lambda () (call-process "sleep"
nil nil nil "2")))

This will hang Emacs for 2 seconds.

Regards,
Elias

[-- Attachment #2: Type: text/html, Size: 575 bytes --]

             reply	other threads:[~2017-09-08  3:00 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-09-08  3:00 Elias Mårtenson [this message]
2017-09-08  3:56 ` call-process blocks the active thread Eric Abrahamsen
2017-09-08  7:01 ` Eli Zaretskii
2017-09-08  7:45   ` Stefan Monnier
2017-09-08  8:06     ` Eli Zaretskii
2017-09-08 10:36   ` Elias Mårtenson
2017-09-08 11:27     ` Philipp Stephani
2017-09-08 12:16     ` Eli Zaretskii
2017-09-08 16:12       ` Tom Tromey
2017-09-08 18:43         ` Tom Tromey

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=CADtN0WL1G-aUw_BdnLL_5OQ4S9psUZjGs4yee50+3fPLM6BpFg@mail.gmail.com \
    --to=lokedhs@gmail.com \
    --cc=emacs-devel@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.