From: Eli Zaretskii <eliz@gnu.org>
To: Qiantan Hong <qhong@mit.edu>
Cc: emacs-devel@gnu.org
Subject: Re: LOCK-BUFFER when two buffer visits the same buffer
Date: Sat, 11 Dec 2021 13:39:29 +0200 [thread overview]
Message-ID: <83czm3qsjy.fsf@gnu.org> (raw)
In-Reply-To: <A43E7F95-03A7-4925-A0A5-484591EC0F72@mit.edu> (message from Qiantan Hong on Sat, 11 Dec 2021 10:00:00 +0000)
> From: Qiantan Hong <qhong@mit.edu>
> Date: Sat, 11 Dec 2021 10:00:00 +0000
> Accept-Language: en-US
>
> I do lock-buffer in the first buffer, then in the second buffer,
> and I killed the second buffer, the lock is gone — even it seems
> that buffer one should hold the lock!
lock-buffer doesn't support what you are evidently trying to do. Its
intended use is to prevent simultaneous modifications of a file by two
users, or by a single user from two separate instances of Emacs. You
want reference counting (and probably also locking the file in the
filesystem), and that isn't supported.
prev parent reply other threads:[~2021-12-11 11:39 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-11 10:00 LOCK-BUFFER when two buffer visits the same buffer Qiantan Hong
2021-12-11 11:29 ` Tassilo Horn
2021-12-11 12:06 ` Qiantan Hong
2021-12-11 11:39 ` Eli Zaretskii [this message]
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