* A question about file lock
@ 2013-06-10 7:23 Xue Fuqiao
2013-06-10 15:26 ` Eli Zaretskii
0 siblings, 1 reply; 2+ messages in thread
From: Xue Fuqiao @ 2013-06-10 7:23 UTC (permalink / raw)
To: emacs-devel
Hi list,
I have a question regarding file locks. In (info "(elisp) File Locks"):
-- Function: unlock-buffer
[...]
If the buffer is not modified, then the file should not be locked,
so this function does nothing.
What if Emacs or the operating system crashes? Will the lock files
disappear? If not, after the crash, does this function work?
--
Best regards, Xue Fuqiao.
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: A question about file lock
2013-06-10 7:23 A question about file lock Xue Fuqiao
@ 2013-06-10 15:26 ` Eli Zaretskii
0 siblings, 0 replies; 2+ messages in thread
From: Eli Zaretskii @ 2013-06-10 15:26 UTC (permalink / raw)
To: Xue Fuqiao; +Cc: emacs-devel
> Date: Mon, 10 Jun 2013 15:23:59 +0800
> From: Xue Fuqiao <xfq.free@gmail.com>
>
> -- Function: unlock-buffer
> [...]
> If the buffer is not modified, then the file should not be locked,
> so this function does nothing.
>
> What if Emacs or the operating system crashes? Will the lock files
> disappear?
No.
> If not, after the crash, does this function work?
Yes. The information recorded in the name of the lock file includes
the system start time, so Emacs knows that the lock file is stale and
ignores it.
^ permalink raw reply [flat|nested] 2+ messages in thread
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2013-06-10 7:23 A question about file lock Xue Fuqiao
2013-06-10 15:26 ` Eli Zaretskii
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