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Re: blink-cursor-end sometimes fails and disrupts pre-command-hook
From: |
Chong Yidong |
Subject: |
Re: blink-cursor-end sometimes fails and disrupts pre-command-hook |
Date: |
Sat, 19 Aug 2006 11:07:52 -0400 |
User-agent: |
Gnus/5.11 (Gnus v5.11) Emacs/22.0.50 (gnu/linux) |
"Ken Manheimer" <address@hidden> writes:
> i've been having a hell of a time tracking down a
> user-configuration-sensitive blink-cursor error, and can't even report
> a case to reproduce it.
>
> after my first keystroke in an emacs session, i find the error message
> in the *Messages* buffer:
>
> Error in pre-command-hook: (error Invalid timer)
>
> after a bunch of searching, i determined the problem was happening in
> blink-cursor-end running off of the pre-command-hook.
If blink-cursor-end is being run, that means that blink-cursor-start
has been called. If blink-cursor-start completed, blink-cursor-timer
should be non-nil. There isn't a lot of possibilities for
blink-cursor-timer to be nil inside blink-cursor-end.
One possibility is a rogue interrupt handler:
* blink-cursor-end is interrupted before it can cancel
blink-cursor-timer; or blink-cursor-start is interrupted before it
can set blink-cursor-timer
* Something inside the interrupt handler runs pre-command-hook, so
blink-cursor-end runs, and blink-cursor-timer is set to nil.
* Execution resumes. blink-cursor-timer is now nil.
However, I don't know any way an interrupt handler could end up
running a pre-command-hook.
So this is very strange.
- blink-cursor-end sometimes fails and disrupts pre-command-hook, Ken Manheimer, 2006/08/18
- Re: blink-cursor-end sometimes fails and disrupts pre-command-hook,
Chong Yidong <=
- Message not available
- Message not available
- Message not available
- Message not available
- Re: blink-cursor-end sometimes fails and disrupts pre-command-hook, Chong Yidong, 2006/08/19
- Re: blink-cursor-end sometimes fails and disrupts pre-command-hook, Ken Manheimer, 2006/08/19
- Re: blink-cursor-end sometimes fails and disrupts pre-command-hook, Chong Yidong, 2006/08/19
- Re: blink-cursor-end sometimes fails and disrupts pre-command-hook, Ken Manheimer, 2006/08/19
- Re: blink-cursor-end sometimes fails and disrupts pre-command-hook, Stuart D. Herring, 2006/08/21
Re: blink-cursor-end sometimes fails and disrupts pre-command-hook, Richard Stallman, 2006/08/20