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David Zeuthen aab6d9ed1c GDBus: Handle autolaunching on UNIX/Freedesktop OSes 
Also add a 'address' G_DBUS_DEBUG option that will print out useful
debug information such as

  GDBus-debug:Address: In g_dbus_address_get_for_bus_sync() for bus type `session'
  GDBus-debug:Address: env var DBUS_SESSION_BUS_ADDRESS is not set
  GDBus-debug:Address: env var DBUS_SYSTEM_BUS_ADDRESS is not set
  GDBus-debug:Address: env var DBUS_STARTER_BUS_TYPE is not set
  GDBus-debug:Address: Running `dbus-launch --autolaunch=05e508961149264c9b750a4c494aa6f7 --binary-syntax --close-stderr' to get bus address (possibly autolaunching)
  GDBus-debug:Address: dbus-launch output:
    0000: 75 6e 69 78  3a 61 62 73  74 72 61 63  74 3d 2f 74    unix:abstract=/t
    0010: 6d 70 2f 64  62 75 73 2d  77 42 41 6f  4b 59 49 52    mp/dbus-wBAoKYIR
    0020: 7a 75 2c 67  75 69 64 3d  30 34 30 64  31 33 66 33    zu,guid=040d13f3
    0030: 30 61 30 62  35 32 63 32  30 66 36 32  63 34 31 63    0a0b52c20f62c41c
    0040: 30 30 30 30  35 30 38 64  00 d2 38 00  00 01 00 40    0000508d..8....@
    0050: 05 00 00 00  00                                       .....
  GDBus-debug:Address: dbus-launch stderr output:
  14542: Autolaunch enabled (using X11).
  14542: --exit-with-session automatically enabled
  14542: Connected to X11 display ':0.0'
  14542: === Parent dbus-launch continues
  14542: Waiting for babysitter's intermediate parent
  14542: Reading address from bus
  14542: Reading PID from daemon
  14542: Saving x11 address
  14542: Created window 88080385
  14542: session file: /root/.dbus/session-bus/05e508961149264c9b750a4c494aa6f7-0
  14542: dbus-launch exiting
  GDBus-debug:Address: Returning address `unix:abstract=/tmp/dbus-wBAoKYIRzu,guid=040d13f30a0b52c20f62c41c0000508d' for bus type `session'

and

  GDBus-debug:Address: In g_dbus_address_get_for_bus_sync() for bus type `session'
  GDBus-debug:Address: env var DBUS_SESSION_BUS_ADDRESS is not set
  GDBus-debug:Address: env var DBUS_SYSTEM_BUS_ADDRESS is not set
  GDBus-debug:Address: env var DBUS_STARTER_BUS_TYPE is not set
  GDBus-debug:Address: Running `dbus-launch --autolaunch=05e508961149264c9b750a4c494aa6f7 --binary-syntax --close-stderr' to get bus address (possibly autolaunching)
  GDBus-debug:Address: dbus-launch output:
    0000: 75 6e 69 78  3a 61 62 73  74 72 61 63  74 3d 2f 74    unix:abstract=/t
    0010: 6d 70 2f 64  62 75 73 2d  77 42 41 6f  4b 59 49 52    mp/dbus-wBAoKYIR
    0020: 7a 75 2c 67  75 69 64 3d  30 34 30 64  31 33 66 33    zu,guid=040d13f3
    0030: 30 61 30 62  35 32 63 32  30 66 36 32  63 34 31 63    0a0b52c20f62c41c
    0040: 30 30 30 30  35 30 38 64  00 d2 38 00  00 01 00 40    0000508d..8....@
    0050: 05 00 00 00  00                                       .....
  GDBus-debug:Address: dbus-launch stderr output:
  14549: Autolaunch enabled (using X11).
  14549: --exit-with-session automatically enabled
  14549: Connected to X11 display ':0.0'
  14549: dbus-daemon is already running. Returning existing parameters.
  14549: dbus-launch exiting
  GDBus-debug:Address: Returning address `unix:abstract=/tmp/dbus-wBAoKYIRzu,guid=040d13f30a0b52c20f62c41c0000508d' for bus type `session'

Note that things work exactly like libdbus, e.g. from the
dbus-launch(1) man page:

  Whenever an autolaunch occurs, the application that had to start a
  new bus will be in its own little world; it can effectively end up
  starting a whole new session if it tries to use a lot of bus
  services. This can be suboptimal or even totally broken, depending
  on the app and what it tries to do.

  [...]

  You can always avoid autolaunch by manually setting
  DBUS_SESSION_BUS_ADDRESS. Autolaunch happens because the default
  address if none is set is "autolaunch:", so if any other address is
  set there will be no autolaunch. You can however include autolaunch
  in an explicit session bus address as a fallback, for example
  DBUS_SESSION_BUS_ADDRESS="something:,autolaunch:" - in that case if
  the first address doesn't work, processes will autolaunch. (The bus
  address variable contains a comma-separated list of addresses to
  try.)

Signed-off-by: David Zeuthen <davidz@redhat.com>
2010-07-06 17:03:36 -04:00
..
.gitignore .gitignore updates for gsettings stuff 2010-04-27 17:04:57 -04:00
gdbus.xml Add --xml to gdbus-tool to print raw introspected XML 2010-06-14 00:02:57 +02:00
gio-docs.xml Remove gsettings-schema-convert tool 2010-06-21 13:24:40 -04:00
gio-querymodules.xml Add a man page for gio-querymodules 2010-04-18 15:54:54 -04:00
gio-sections.txt Bug 622124 - implement flags for GSettings 2010-07-01 19:06:02 -04:00
gio.types Merge the wip/gapplication branch 2010-06-07 13:48:42 -04:00
glib-compile-schemas.xml Remove gsettings-schema-convert tool 2010-06-21 13:24:40 -04:00
gsettings.xml Rename gsettings-tool to gsettings 2010-04-22 01:17:02 -04:00
gvfs-overview.odg update the overview image of the gio docs 2009-06-08 17:29:22 +02:00
gvfs-overview.png update the overview image of the gio docs 2009-06-08 17:29:22 +02:00
Makefile.am GIO doc cleanups 2010-06-23 09:25:30 -04:00
migrating-gconf.xml Remove gsettings-schema-convert tool 2010-06-21 13:24:40 -04:00
migrating-gdbus.xml Bug 621213 – GDBusProxy and well-known names 2010-06-11 18:21:27 -04:00
migrating-gnome-vfs.xml Add a migration chapter for dbus bits 2010-05-06 17:58:29 -04:00
migrating-posix.xml Remove duplicate copies of migration docs 2010-05-27 13:07:54 -04:00
overview.xml GDBus: Handle autolaunching on UNIX/Freedesktop OSes 2010-07-06 17:03:36 -04:00
version.xml.in gio/ docs/reference/gio Merged gio-standalone into glib. 2007-11-26 16:13:05 +00:00