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bluetooth: Parse media transport's properties

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Add the code to parse the properties of the media transport object when
a PropertiesChanged signal is received.

Note that the transport might have an owner other than BlueZ, and thus
the property changes would be emitted from arbitrary senders. For
performance reasons, the installed match considers the interface name
where the property has changed.

It could be possible to install and remove the D-Bus matches dynamically
when a new owner is registered/unregistered, but filtering based on the
interface name seems good enough already.
This commit is contained in:
Mikel Astiz 2013-05-10 10:30:44 +02:00 • committed by Arun Raghavan
parent 235611a7d1
commit 2f79fb580a
1 changed files with 29 additions and 0 deletions
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29
src/modules/bluetooth/bluetooth-util.c
View file

@ -1094,6 +1094,24 @@ static int transport_parse_property(pa_bluetooth_transport *t, DBusMessageIter *
return 0;
}
static int parse_transport_properties(pa_bluetooth_transport *t, DBusMessageIter *i) {
DBusMessageIter element_i;
dbus_message_iter_recurse(i, &element_i);
while (dbus_message_iter_get_arg_type(&element_i) == DBUS_TYPE_DICT_ENTRY) {
DBusMessageIter dict_i;
dbus_message_iter_recurse(&element_i, &dict_i);
transport_parse_property(t, &dict_i);
dbus_message_iter_next(&element_i);
}
return 0;
}
static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *userdata) {
DBusError err;
pa_bluetooth_discovery *y;
@ -1315,6 +1333,13 @@ static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *us
}
parse_device_properties(d, &arg_i, true);
} else if (pa_streq(interface, "org.bluez.MediaTransport1")) {
pa_bluetooth_transport *t;
if (!(t = pa_hashmap_get(y->transports, dbus_message_get_path(m))))
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
parse_transport_properties(t, &arg_i);
}
return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
@ -1979,6 +2004,8 @@ pa_bluetooth_discovery* pa_bluetooth_discovery_get(pa_core *c) {
"type='signal',sender='org.bluez',interface='org.freedesktop.DBus.ObjectManager',member='InterfacesRemoved'",
"type='signal',sender='org.bluez',interface='org.freedesktop.DBus.Properties',member='PropertiesChanged'"
",arg0='org.bluez.Device1'",
"type='signal',interface='org.freedesktop.DBus.Properties',member='PropertiesChanged'"
",arg0='org.bluez.MediaTransport1'",
NULL) < 0) {
pa_log("Failed to add D-Bus matches: %s", err.message);
goto fail;
@ -2056,6 +2083,8 @@ void pa_bluetooth_discovery_unref(pa_bluetooth_discovery *y) {
"type='signal',sender='org.bluez',interface='org.freedesktop.DBus.ObjectManager',member='InterfacesRemoved'",
"type='signal',sender='org.bluez',interface='org.freedesktop.DBus.Properties',member='PropertiesChanged'"
",arg0='org.bluez.Device1'",
"type='signal',interface='org.freedesktop.DBus.Properties',member='PropertiesChanged'"
",arg0='org.bluez.MediaTransport1'",
NULL);
if (y->filter_added)