From: "Óscar Fuentes" <ofv@wanadoo.es>
To: emacs-devel@gnu.org
Cc: 3681@emacsbugs.donarmstrong.com
Subject: Re: Breakpoint ignored.
Date: Sun, 18 Oct 2009 20:46:16 +0200 [thread overview]
Message-ID: <87ljj8y1zb.fsf@telefonica.net> (raw)
In-Reply-To: jwvaazowyw2.fsf-monnier+emacs@gnu.org
Stefan Monnier <monnier@iro.umontreal.ca> writes:
>>> C-h k á says `self-insert-command' is invoked, wich is a built-in
>>> function. So I follow the link to the source code to learn that the C
>>> function is Fself_insert_command, then invoke emacs and set a breakpoint
>>> on it, but gdb does not stop when a character is typed (and displayed),
>>> as if no breakpoint was active.
>>>
>>> What I'm missing?
>
>> You are probably missing the fact that Emacs tries to optimize the
>> case of insertion of a single character. See this part of keyboard.c:
>
> Note also that you can remove this whole `if' if you want. It's only
> meant to be an optimization, so before trying to fix/debug the optimized
> code, try and see if the problem manifests itself in the
> non-optimized code.
Thanks. Already debugged the issue as far as my knowledge of emacs/X
goes.
command_loop_1 does not notice that á was typed until another character
comes. My guess is that emacs does not receive the notification until
something else comes from X (another character or an expired timer,
which is the case when blink-cursor-mode is on).
--
Óscar
next prev parent reply other threads:[~2009-10-18 18:46 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-10-18 2:55 Breakpoint ignored Óscar Fuentes
2009-10-18 4:19 ` Eli Zaretskii
2009-10-18 14:39 ` Stefan Monnier
2009-10-18 18:46 ` Óscar Fuentes [this message]
2009-10-19 2:39 ` Richard Stallman
2009-10-19 3:18 ` Stefan Monnier
2009-10-19 6:22 ` Miles Bader
2009-10-19 13:19 ` Stefan Monnier
2009-10-19 22:53 ` Richard Stallman
2009-10-20 0:59 ` David Kastrup
2009-10-20 1:44 ` Óscar Fuentes
2009-10-20 2:03 ` Stefan Monnier
2009-10-21 4:58 ` Richard Stallman
2009-10-19 3:35 ` Daniel Colascione
2009-10-19 9:20 ` Andreas Schwab
2009-10-19 13:21 ` Stefan Monnier
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