Most of the stuff was done by 762df85234.
But to allow this piece of code:
from gi.repository import NMClient
nmclient = NMClient.Client()
print nmclient.get_active_connections()
we also need to set "dbus-path" property in NMClient constuctor(),
else parent NMObject is not properly constructed.
Bindings (like GObject Introspection) almost always create objects
using g_object_new() by default and don't use our helper functions
like nm_client_new(). Thus we need to make sure that if the
object is created in that way, any property accesses or functions
that return properties ensure that the object is fully initialized,
which is what the _new() functions were supposed to do. In one
case in NMClient that was missing (getting active connections)
and wasn't happening at all in NMRemoteSettings, which are our two
entry points into libnm-glib.
This allows this python+GI sequence to return the expected active
connection list:
from gi.repository import NMClient
nmclient = NMClient.Client(dbus_path='/org/freedesktop/NetworkManager')
active = nmclient.get_active_connections()
print(active)
where previously it returned an empty list because the NMClient
wasn't fully initialized by the time nm_client_get_active_connections()
was called.
Add nm_device_connection_compatible() that returns an error when it fails.
nm_device_connection_valid() does the same work except it doesn't set GError.
First: object creation requests get triggered each time a property
that refers to the object is read. That can happen from a couple
of places around the same time (like initialization) and to be
expected. But when those requests are processed (after we've
determined the type of object to create) a previous request may
have already created the object. If that's the case don't create
a duplicate.
Second: properties can also be updated from a few places which
don't know about each other (from both regular code and the
"pseudo property" signal handlers) so when adding objects to
array properties, make sure the object hasn't already been
added to that array.
Active Device objects held a reference to their ActiveConnection
which also held a reference back to the Device. Ensure that's
broken so everyone can get disposed correctly.
When NM was registering all of its enum types by hand, it was using
NamesLikeThis rather than the default names-like-this for the "nick"
values. When we switched to using glib-mkenums, this resulted in
dbus-glib using different strings for the D-Bus error names, causing
compatibility problems.
Fix this by using glib-mkenums annotations to manually fix all the
enum values back to what they were before. (This can't be done in a
more automated way, because the old names aren't 100% consistent. Eg,
"UNKNOWN" frequently becomes "UnknownError" rather than just
"Unknown".)
NM emits coalesced PropertiesChanged signals, which might be
delayed slightly and thus sent after the StateChanged signal
for devices. Clients of libnm-glib listening for the
'state-changed' signal and then querying the state manually
using nm_device_get_state() would still see the old state until
it was updated via the delayed PropertiesChanged signal
processing. Since when the StateChanged signal comes in the
device is already in the new state, just update the state and
leave the GObject property notify signal to the
PropertiesChanged signal handling code so that clients have
an accurate device state.
Fix handle_object_array_property() to deal with receiving an empty
list correctly (rather than warning and leaving the property with its
previous value still set).
Also, add two more untracked properties that shouldn't be warned about
(NMDevice:device-type and NMActiveConnection:vpn, both of which are
only used at construct time).
Rather than generating enum classes by hand (and complaining in each
file that "this should really be standard"), use glib-mkenums.
Unfortunately, we need a very new version of glib-mkenums in order to
deal with NM's naming conventions and to fix a few other bugs, so just
import that into the source tree temporarily.
Also, to simplify the use of glib-mkenums, import Makefile.glib from
https://bugzilla.gnome.org/654395.
To avoid having to run glib-mkenums for every subdirectory of src/,
add a new "generated" directory, and put the generated enums files
there.
Finally, use Makefile.glib for marshallers too, and generate separate
ones for libnm-glib and NetworkManager.
The notifications for child objects (like NMClient's device-added
signal or NMDeviceWifi's access-point-added signal) could get emitted
before the child objects were actually constructed, because
object_created() decrements the properties-retrieved tracking
variable, which wasn't always incremented before calling that
function.
Need to initialize libnm-util to get GValue transforms registered
so the property values print out as strings. Then actually print
some debugging information about properties.
Some property updates (mainly those dealing with properties that
hold objects themsevles) weren't being done in a synchronous manner
when synchronicity was requested. Make sure that happens.
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.
Most of the code was using dbus_g_proxy_call() directly, but there
were some leftover uses of the generated bindings. Make things more
consistent by using dbus_g_proxy_call() everywhere, and stop building
the -bindings.h files.
Adds a new "master" property to NMActiveConnection containing the path
of the master NMDevice if the connection has a master.
Signed-off-by: Thomas Graf <tgraf@redhat.com>
