From: Eli Zaretskii <eliz@gnu.org>
To: "Mattias Engdegård" <mattiase@acm.org>
Cc: michael.albinus@gmx.de, 35418@debbugs.gnu.org
Subject: bug#35418: [PATCH] Don't poll auto-revert files that use notification
Date: Sat, 27 Apr 2019 19:52:56 +0300 [thread overview]
Message-ID: <83d0l7v193.fsf@gnu.org> (raw)
In-Reply-To: <DB035878-69EB-4006-A926-B703F0ABFCE0@acm.org> (message from Mattias Engdegård on Sat, 27 Apr 2019 18:19:36 +0200)
> From: Mattias Engdegård <mattiase@acm.org>
> Date: Sat, 27 Apr 2019 18:19:36 +0200
> Cc: Eli Zaretskii <eliz@gnu.org>, 35418@debbugs.gnu.org
>
> The reason is that file-notify does not call inotify-add-watch on individual files, as in your example above, but on their containing directory ("/tmp" in your example). When monitoring a directory with two hard links to the same file, and the file is changed, inotify (sensibly) only reports a change to one of the links (the one employed for the change). Thus, the logic is in the Linux kernel, not in filenotify.
>
> For kqueue it is different: here, changes to files are not reported when a watch is monitoring their directory, so filenotify.el sets kqueue watches on each file instead. The same could be done with inotify (and w32notify, if I read the code right), but watching directories has certain advantages.
w32notify cannot watch a single file, because the Windows notification
machinery is directory-oriented, and reports all changes in the
directory.
next prev parent reply other threads:[~2019-04-27 16:52 UTC|newest]
Thread overview: 101+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-04-24 18:14 bug#35418: [PATCH] Don't poll auto-revert files that use notification Mattias Engdegård
2019-04-24 18:58 ` Eli Zaretskii
2019-04-24 19:36 ` Michael Albinus
2019-04-26 20:46 ` Mattias Engdegård
2019-04-27 9:40 ` Michael Albinus
2019-04-27 16:28 ` Mattias Engdegård
2019-04-25 9:56 ` Mattias Engdegård
2019-04-25 10:04 ` Eli Zaretskii
2019-04-25 18:07 ` Mattias Engdegård
2019-04-27 9:27 ` Michael Albinus
2019-04-27 9:54 ` Eli Zaretskii
2019-04-27 10:23 ` Michael Albinus
2019-04-27 16:19 ` Mattias Engdegård
2019-04-27 16:52 ` Eli Zaretskii [this message]
2019-04-28 10:21 ` Mattias Engdegård
2019-04-29 7:53 ` Michael Albinus
2019-04-29 11:06 ` Mattias Engdegård
2019-04-29 12:18 ` Michael Albinus
2019-04-29 16:24 ` Eli Zaretskii
2019-04-29 18:29 ` Mattias Engdegård
2019-04-29 20:17 ` Michael Albinus
2019-04-30 3:57 ` Eli Zaretskii
2019-04-30 11:41 ` Mattias Engdegård
2019-04-30 12:59 ` Michael Albinus
2019-04-30 13:56 ` Mattias Engdegård
2019-04-30 14:19 ` Michael Albinus
2019-04-29 16:23 ` Eli Zaretskii
2019-04-29 19:21 ` Mattias Engdegård
2019-04-29 19:56 ` Michael Albinus
2019-04-30 21:09 ` Mattias Engdegård
2019-05-01 17:45 ` Eli Zaretskii
2019-05-01 19:41 ` Mattias Engdegård
2019-05-02 12:18 ` Michael Albinus
2019-05-02 12:53 ` Mattias Engdegård
2019-05-02 13:02 ` Michael Albinus
2019-05-03 12:00 ` Mattias Engdegård
2019-05-03 13:44 ` Eli Zaretskii
2019-05-03 14:47 ` Mattias Engdegård
2019-05-04 9:04 ` Eli Zaretskii
2019-05-04 11:21 ` Mattias Engdegård
2019-05-04 13:41 ` Eli Zaretskii
2019-05-04 16:53 ` Michael Albinus
2019-05-04 17:08 ` Eli Zaretskii
2019-05-04 18:50 ` Mattias Engdegård
2019-05-04 19:43 ` Michael Albinus
2019-05-04 20:31 ` Michael Albinus
2019-05-04 20:46 ` Mattias Engdegård
2019-05-05 8:22 ` Michael Albinus
2019-05-05 9:58 ` Mattias Engdegård
2019-05-08 8:34 ` Mattias Engdegård
2019-05-08 8:47 ` Eli Zaretskii
2019-05-08 10:18 ` Mattias Engdegård
2019-05-08 10:58 ` Eli Zaretskii
2019-05-08 11:48 ` Mattias Engdegård
2019-05-08 12:35 ` Eli Zaretskii
2019-05-08 12:58 ` Mattias Engdegård
2019-05-08 13:09 ` Michael Albinus
2019-05-08 13:28 ` Eli Zaretskii
2019-05-08 14:13 ` Mattias Engdegård
2019-05-08 17:24 ` Eli Zaretskii
2019-05-08 18:17 ` Michael Albinus
2019-05-09 11:50 ` Michael Albinus
2019-05-10 15:22 ` Mattias Engdegård
2019-05-12 8:48 ` Michael Albinus
2019-05-12 19:49 ` Mattias Engdegård
2019-05-13 13:35 ` Michael Albinus
2019-05-14 12:41 ` Mattias Engdegård
2019-05-14 14:52 ` Michael Albinus
2019-05-08 10:23 ` Mattias Engdegård
2019-05-09 10:00 ` Mattias Engdegård
2019-05-09 10:48 ` Eli Zaretskii
2019-05-09 11:15 ` Mattias Engdegård
2019-05-10 9:49 ` Michael Albinus
2019-05-10 12:27 ` Mattias Engdegård
2019-05-10 12:43 ` Michael Albinus
2019-05-13 11:34 ` Mattias Engdegård
2019-05-13 15:08 ` Michael Albinus
2019-05-18 17:39 ` Mattias Engdegård
2019-05-19 9:12 ` Michael Albinus
2019-05-19 20:25 ` Mattias Engdegård
2019-05-20 7:30 ` Michael Albinus
2019-05-20 19:19 ` Mattias Engdegård
2019-04-29 7:19 ` Michael Albinus
2019-04-29 11:54 ` Mattias Engdegård
2019-04-29 12:26 ` Michael Albinus
2019-04-29 18:58 ` Mattias Engdegård
2019-04-29 20:04 ` Michael Albinus
2019-04-30 15:14 ` Eli Zaretskii
2019-04-24 19:59 ` Michael Albinus
2019-04-25 9:58 ` Mattias Engdegård
2019-04-25 11:04 ` Michael Albinus
2019-04-25 15:22 ` Mattias Engdegård
2019-04-30 1:03 ` Zhang Haijun
2019-04-30 7:06 ` Michael Albinus
2019-05-01 2:17 ` Zhang Haijun
2019-05-01 2:59 ` Zhang Haijun
2019-05-01 3:10 ` Zhang Haijun
2019-05-02 12:30 ` Michael Albinus
2019-05-02 13:24 ` Zhang Haijun
2019-05-02 12:28 ` Michael Albinus
2019-05-02 12:24 ` Michael Albinus
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