[debbugs-tracker] bug#18880: closed (25.0.50; inotify-based file notifications missing sometimes)

[GNU bug Tracking System]

Your message dated Tue, 17 Feb 2015 20:30:52 +0100
with message-id <address@hidden>
and subject line Re: bug#18880: 25.0.50; inotify-based file notifications 
missing sometimes
has caused the debbugs.gnu.org bug report #18880,
regarding 25.0.50; inotify-based file notifications missing sometimes
to be marked as done.

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-- 
18880: http://debbugs.gnu.org/cgi/bugreport.cgi?bug=18880
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> --- Begin Message ---
>
>
>
> Subject: 
>
> 25.0.50; inotify-based file notifications missing sometimes
>
>
>
>
> Date: 
>
> Tue, 28 Oct 2014 17:11:10 -0700
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>
>
>
> This bug is about an issue on the emacs-devel-mailing list:
>
>  http://lists.gnu.org/archive/html/emacs-devel/2014-10/msg00911.html
>
> The main message is copied below:
>
> I ran into an issue with inotify-base file notifications when looking at
> auto-revert stuff from an earlier thread. To show the issue, I build
> the latest emacs from source using
>
>  ./configure --with-file-notification=inotify
>
> I then run
>
>  ./emacs --eval "`cat  /tmp/tstnotify.el`" -Q -nw
>
> with tstnotify.el being
>
>  (progn
>    (require 'filenotify)
>
>    (dolist (fil '("/tmp/tst1" "/tmp/tst2"))
>      (file-notify-add-watch fil  '(change attribute-change)
>                             (lambda (event)
>                               (message "notify event %s" event)))
>      (find-file fil))
>    (switch-to-buffer "*Messages*"))
>
>
> Here I ask for notifications for two files, and print out the events as
> they come in. While emacs is running this way, I modify those two files
> using an external tool. I would expect to see modification events for
> both of these files, but I only see them for one of the files.
>
> The issue is that emacs doesn't ask inotify to look at the two files, it
> asks it to look at the containing directory (/tmp in both cases),
> filtering out all the files we don't care about later. inotify is being
> intelligent, notices that we're asking to monitor the same object twice
> (/tmp), and simply returns the same descriptor a second time. Emacs is
> assuming a unique descriptor, and the result is that we only get
> notifications for one file.
>
>
>
> --- End Message ---
> --- Begin Message ---
>
>
>
> Subject: 
>
> Re: bug#18880: 25.0.50; inotify-based file notifications missing sometimes
>
>
>
>
> Date: 
>
> Tue, 17 Feb 2015 20:30:52 +0100
>
>
>
>
> User-agent: 
>
> Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux)
>
>
>
>
> Version: 24.5
>
> Michael Albinus <address@hidden> writes:
>
> > I've committed a patch to the emacs-24 branch; could you, please, check?
>
> No reaction for weeks; I set this bug as closed. If there are still
> problems, please reopen.
>
> Best regards, Michael.
>
>
> --- End Message ---