Use the D-Bus connection helper whenever we need a connection to
NM, which by default tries to use a private connection instead of
the shared bus connection whenever the user is root. Doing this
by default will not change the behavior of libnm-glib, and allows
tools like nmcli and libnm-glib-using clients to work in minimal
environments (those without a bus daemon) by default.
When using a private connection, we need to use dbus_g_proxy_new_for_peer()
because the bus isn't involved. Since many parts of libnm-glib create a
proxy for their corresponding remote object, consolidate the proxy creation
logic.
A later patch will add logic to use a private connection versus a bus-based
one.
Implement GInitable and GAsyncInitable in NMObject, with
implementations that synchronously or asynchonously load all
properties, and change _nm_object_ensure_inited() to run
g_initable_init().
Update the object/object-array property handling to initialize the
objects after creating them (synchronously or asynchronously,
according to the situation), so that they will have all of their
properties preloaded before they are ever visible to the caller.
Move the non-blocking/non-failable parts of various objects'
constructor() methods to constructed(), and move the blocking/failable
parts to init(), and implement init_async() methods with non-blocking
versions of the blocking methods.
Make nm_device_new() and nm_client_new() call
_nm_object_ensure_inited(), to preserve the behaviour formerly
enforced by their construct() methods, that properties are guaranteed
to be initialized before any signals involving them are emitted.
Add generic handling for "properties" that consist of a "Get" method,
an "Added" signal, and a "Removed" signal, reusing some of the code
for handling object-array-valued properties. And load the values of
pseudo properties from _nm_object_reload/ensure_properties as well.
Add an "object_type" field to NMPropertiesInfo, and use that with
DBUS_TYPE_G_OBJECT_PATH and DBUS_TYPE_G_ARRAY_OF_OBJECT_PATH
properties so that we don't need custom marshallers for each one.
When creating an NMDevice or NMActiveConnection, we need to fetch an
extra property first to figure out the exact subclass to use, so add a
bit of infrastructure for that as well. Also, do that preprocessing
asynchronously when processing a property change notification, so that
it doesn't block the main loop.
Rather than having every property getter method have code to fetch
that specific property's value, just call the new
_nm_object_ensure_inited() (which makes sure that we've read all the
property values on the object at least once), and then return the
cached value. (After we've read the initial property values, the
PropertiesChanged signal handler will ensure that the values are kept
up to date, so we can always just return cached property values after
that point.)
This then lets us get rid of _nm_object_get_property() and its
wrappers.
Rename _nm_object_handle_properties_changed(), etc, to be about
properties in general, rather than just property changes.
Interpret func==NULL in NMPropertiesInfo as meaning "use
_nm_object_demarshal_generic", and then reorder the fields so that you
can just leave that field out in the declarations when it's NULL.
Add a way to register properties that exist in D-Bus but aren't
tracked by the NMObjects, and use that for NMDevice's D-Bus Ip4Address
property, replacing the existing hack.
Also add a few other missing properties noticed along the way.
* nm-object.c
- (nm_object_queue_notify): don't notify multiple times for the same
property
* nm-object-private.h
- (handle_ptr_array_return): return NULL if the given array is NULL or
if it has zero elements
* nm-ip4-config.c
- (finalize): use g_ptr_array_foreach() when freeing domains
- (nm_ip4_config_get_domains): use handle_ptr_array_return()
* nm-active-connection.c
- (nm_active_connection_get_devices): use handle_ptr_array_return()
* nm-device-802-11-wireless.c
nm-device-802-11-wireless.h
- (nm_device_802_11_wireless_get_access_points): return const; use
handle_ptr_array_return()
* nm-types.c
- (nm_object_array_demarshal): always create an array, even of length
zero, to distinguish between "NM returned no items" and "haven't
asked NM yet"
* nm-client.c
- (dispose): free active connections too
- (proxy_name_owner_changed): free active connections too when NM goes
away
- (nm_client_get_devices): return const; use handle_ptr_array_return()
- (nm_client_get_active_connections): use handle_ptr_array_return()
git-svn-id: http://svn-archive.gnome.org/svn/NetworkManager/trunk@3506 4912f4e0-d625-0410-9fb7-b9a5a253dbdc
Massive fixup of libnm-glib to:
a) have all objects (with the exception of VPN) cache their properties and
update them asynchronously on PropertiesChanged signals from NM
b) return internal const data for most attributes/properties instead of
allocated values that the caller must free
c) cache wrapped objects such that a given D-Bus path will always map to the
same GObject returned by libnm-glib
d) remove a few signals and move them to GObject property notifications
e) match recent NM D-Bus API changes for activation/deactivation
f) remove some private functions from libnm-glib headers
git-svn-id: http://svn-archive.gnome.org/svn/NetworkManager/trunk@3491 4912f4e0-d625-0410-9fb7-b9a5a253dbdc
