Bug 23925 - DBus Daemon fails to detect newly installed .service files after it is started
Summary: DBus Daemon fails to detect newly installed .service files after it is started
Alias: None
Product: dbus
Classification: Unclassified
Component: core (show other bugs)
Version: unspecified
Hardware: Other All
: medium normal
Assignee: Havoc Pennington
QA Contact: John (J5) Palmieri
: 23921 (view as bug list)
Depends on:
Reported: 2009-09-14 05:06 UTC by George Goldberg
Modified: 2013-09-03 19:20 UTC (History)
3 users (show)

See Also:
i915 platform:
i915 features:

monitor service directories for changes (4.63 KB, patch)
2010-02-18 13:11 UTC, Colin Walters
Details | Splinter Review

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Description George Goldberg 2009-09-14 05:06:36 UTC
If I compile and install a program that installs a .service file so that it can be autostarted by dbus, it is not included in the result of a subsequent call to org.freedesktop.DBus.ListActivatableNames until I either call org.freedesktop.DBus.ReloadConfig or restart the dbus daemon.
Comment 1 John (J5) Palmieri 2009-09-14 10:36:56 UTC
What platform are you on and did you enable dnotify, inotify or kqueue for monitoring directory changes?

Comment 2 John (J5) Palmieri 2009-09-14 10:37:41 UTC
Or rather does your platform compile d-bus with one of those features enabled?
Comment 3 George Goldberg 2009-09-14 13:45:38 UTC
I'm running Debian Linux unstable (on AMD64 platform), using stock distribution packages.

From looking at the buildd logs, it looks like the package is build with the following ./configure flags: 

/build/buildd/dbus-1.2.16/./configure --build=x86_64-linux-gnu --prefix=/usr --includedir="\${prefix}/include" --mandir="\${prefix}/share/man" --infodir="\${prefix}/share/info" --sysconfdir=/etc --localstatedir=/var --libexecdir="\${prefix}/lib/dbus-1.0" --disable-maintainer-mode --disable-dependency-tracking --srcdir=.   --enable-xml-docs --enable-doxygen-docs 

If there's any more information I can provide, please let me know.
Comment 4 Simon McVittie 2009-09-14 13:46:01 UTC
Debian appears to run ./configure with no special arguments (regarding inotify etc. at least), which in practice results in inotify being chosen on Linux: e.g. <https://buildd.debian.org/fetch.cgi?&pkg=dbus&ver=1.2.16-2&arch=amd64&stamp=1247704719&file=log>, <https://buildd.debian.org/fetch.cgi?&pkg=dbus&ver=1.2.1-3&arch=i386&stamp=1217461701&file=log> (reached from <https://buildd.debian.org/pkg.cgi?pkg=dbus>)
Comment 5 Colin Walters 2010-02-16 08:51:09 UTC
Yes, this is a bug it appears; we need to call get_servicedirs in bus.c and add them to the monitored directories.
Comment 6 Colin Walters 2010-02-18 13:11:24 UTC
Created attachment 33400 [details] [review]
monitor service directories for changes

Tested manually; adding infrastructure to this kind of thing to the test suite would be useful but a little nontrivial.
Comment 7 Will Thompson 2010-02-18 14:33:48 UTC
Comment on attachment 33400 [details] [review]
monitor service directories for changes

This looks fine to me! (Modulo inotify_add_watch() not being documented to raise ENOENT if the target doesn't exist, but I'm quite happy to believe that it does.)
Comment 8 Simon McVittie 2011-01-10 06:56:48 UTC
Already fixed: Colin seems to have committed this before 1.2.22.
Comment 9 Simon McVittie 2013-09-03 19:20:28 UTC
*** Bug 23921 has been marked as a duplicate of this bug. ***

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