From: Chong Yidong <cyd@stupidchicken.com>
Cc: Nick Roberts <nickrob@snap.net.nz>,
Romain Francoise <romain@orebokech.com>,
emacs-devel@gnu.org
Subject: Re: C-g crash redux
Date: Thu, 03 Aug 2006 20:32:43 -0400 [thread overview]
Message-ID: <87zmelfihg.fsf@stupidchicken.com> (raw)
In-Reply-To: <m3u04te9m9.fsf@kfs-l.imdomain.dk> (Kim F. Storm's message of "Fri, 04 Aug 2006 00:29:34 +0200")
>> Typing C-g, which runs interrupt_signal, runs quit_throw_to_read_char
>> instead of Fsignal during when waiting_for_input is set (as it is
>> during wait_reading_process_output). If I understand correctly, the
>> purpose is to enable read-char to return a `C-g' character; and that's
>> why it's both undesirable and unnecesssary to use a
>> record_unwind_protect inside wait_reading_process_output.
>
> Ok, I see.
>
> But how do we ensure that waiting_for_user_input_p is restored
> correctly on C-g?
>
> Or isn't that necessary?
That's not necessary, since quit_throw_to_read_char calls
clear_waiting_for_input, which resets waiting_for_input to 0.
I guess someone worked all this out at some time in the past. I added
a comment to the code to clarify this.
next prev parent reply other threads:[~2006-08-04 0:32 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-02 20:50 C-g crash redux Romain Francoise
2006-08-02 22:07 ` Nick Roberts
2006-08-02 23:21 ` Kim F. Storm
2006-08-03 2:40 ` Nick Roberts
2006-08-03 15:13 ` Chong Yidong
2006-08-03 22:29 ` Kim F. Storm
2006-08-04 0:32 ` Chong Yidong [this message]
2006-08-04 1:49 ` Nick Roberts
2006-08-04 11:12 ` Kim F. Storm
2006-08-04 15:26 ` Chong Yidong
2006-08-04 16:03 ` Chong Yidong
2006-08-04 20:59 ` Richard Stallman
2006-08-04 22:07 ` Nick Roberts
2006-08-04 23:35 ` Kim F. Storm
2006-08-05 5:45 ` David Kastrup
2006-08-06 18:28 ` Richard Stallman
2006-08-06 20:58 ` Nick Roberts
2006-08-04 0:59 ` Nick Roberts
2006-08-03 4:16 ` Chong Yidong
2006-08-03 5:40 ` Nick Roberts
2006-08-03 7:17 ` Romain Francoise
2006-08-03 7:35 ` Stefan Monnier
2006-08-03 19:15 ` Richard Stallman
2006-08-03 19:14 ` Richard Stallman
2006-08-03 15:50 ` Richard Stallman
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