This also allows us to nuke the priv-> pointers and save a couple of
indirections.

Signed-off-by: David Zeuthen <davidz@redhat.com>

 - add G_VARIANT_TYPE_BYTESTRING, _BYTESTRING_ARRAY, _STRING_ARRAY

 - remove g_variant_{new,get}_byte_array functions

 - add g_variant_{new,get,dup}_bytestring{,_array} functions

 - remove undocumented support for deserialising arrays of objectpaths
   or signature strngs using g_variant_get_strv()

 - add and document new format strings '^ay', '^&ay', '^aay' and '^a&ay'

 - update GApplication to use the new API

 - update GSettings binding code to use the new API

 - add tests

E.g. move these C structures out of public header files and into their
respective C files. Also nuke padding since this is no longer needed.

This leaves only GDBusProxy as an extendable type.

Signed-off-by: David Zeuthen <davidz@redhat.com>

Add g_dbus_connection_flush{_finish,sync}().

https://bugzilla.gnome.org/show_bug.cgi?id=618882



Signed-off-by: David Zeuthen <davidz@redhat.com>

While this a dangerous thing to allow (collissions, reply_serial not
matching up etc.), the added flexibility makes this a good trade-off -
for example, with this feature, it's now a lot easier to build message
routers.

Signed-off-by: David Zeuthen <davidz@redhat.com>

but only if it was not explicitly selected.

Also emit GDBusProxy::g-properties-changed when dropping (when the
name owner vanishes) or populating (when loading properties) the
property cache.

https://bugzilla.gnome.org/show_bug.cgi?id=623538



Signed-off-by: David Zeuthen <davidz@redhat.com>

Remove misleading (and always true) check on the name that the
NameOwnerChanged signal is for.

https://bugzilla.gnome.org/show_bug.cgi?id=623537



Signed-off-by: David Zeuthen <davidz@redhat.com>

gettext can't handle macros, so we have to use literal format
specifiers, unfortunately.

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>

Changes this error

 DBUS_SESSION_BUS_ADDRESS= \
 gdbus introspect --session \
                  --dest org.freedesktop.DBus \
                  --object-path /org/freedesktop/DBus
 **
 GLib-GIO:ERROR:gdbusaddress.c:913:g_dbus_address_get_stream_sync: assertion failed: (last_error != NULL)
 Aborted (core dumped)

to

 DBUS_SESSION_BUS_ADDRESS= \
 gdbus introspect --session \
                  --dest org.freedesktop.DBus \
                  --object-path /org/freedesktop/DBus
 Error connecting: The given address is empty

which is much more preferable.

Signed-off-by: David Zeuthen <davidz@redhat.com>

We must set XDG_DATA_HOME early on, and we must clear error
before using it.

Since the name has been interned already at pspec creation time,
we can just call g_intern_string().