GNU bug report logs - #5645
23.1.92; read-event blocks in batch mode

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Package: emacs;

Reported by: Michael Albinus <michael.albinus <at> gmx.de>

Date: Thu, 25 Feb 2010 04:49:02 UTC

Severity: normal

Done: Michael Albinus <michael.albinus <at> gmx.de>

Bug is archived. No further changes may be made.

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From: Chong Yidong <cyd <at> stupidchicken.com>
To: Michael Albinus <michael.albinus <at> gmx.de>
Cc: 5645 <at> debbugs.gnu.org
Subject: bug#5645: 23.1.92; read-event blocks in batch mode
Date: Fri, 26 Feb 2010 19:09:02 -0500

Michael Albinus <michael.albinus <at> gmx.de> writes:

> Call
>
> # emacs -Q --batch --eval '(read-event nil nil 0.1)'
>
> It does not return.

This is a technical limitation of batch mode.  Input is acquired via
getchar(): see kbd_buffer_get_event in keyboard.c.  Unfortunately,
getchar() blocks until input in submitted on standard input.
This bug report was last modified 12 years and 311 days ago.

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