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bluetooth: Detect BlueZ 5

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Check the existence of ObjectManager to detect the version of the
running daemon. If the interface exists, it should be BlueZ 5.
This commit is contained in:
Mikel Astiz 2013-04-29 18:27:58 +02:00 • committed by Arun Raghavan
parent aacac20e76
commit 2247b18739
1 changed files with 50 additions and 2 deletions
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52
src/modules/bluetooth/bluetooth-util.c
View file

@ -61,12 +61,19 @@
" </interface>" \
"</node>"
typedef enum pa_bluez_version {
BLUEZ_VERSION_UNKNOWN,
BLUEZ_VERSION_4,
BLUEZ_VERSION_5,
} pa_bluez_version_t;
struct pa_bluetooth_discovery {
PA_REFCNT_DECLARE;
pa_core *core;
pa_dbus_connection *connection;
PA_LLIST_HEAD(pa_dbus_pending, pending);
pa_bluez_version_t version;
bool adapters_listed;
pa_hashmap *devices;
pa_hashmap *transports;
@ -880,6 +887,46 @@ static void list_adapters(pa_bluetooth_discovery *y) {
send_and_add_to_pending(y, m, get_properties_reply, NULL);
}
static void get_managed_objects_reply(DBusPendingCall *pending, void *userdata) {
DBusMessage *r;
pa_dbus_pending *p;
pa_bluetooth_discovery *y;
pa_assert_se(p = userdata);
pa_assert_se(y = p->context_data);
pa_assert_se(r = dbus_pending_call_steal_reply(pending));
if (dbus_message_is_error(r, DBUS_ERROR_UNKNOWN_METHOD)) {
pa_log_info("D-Bus ObjectManager not detected so falling back to BlueZ version 4 API.");
y->version = BLUEZ_VERSION_4;
list_adapters(y);
goto finish;
}
if (dbus_message_get_type(r) == DBUS_MESSAGE_TYPE_ERROR) {
pa_log("GetManagedObjects() failed: %s: %s", dbus_message_get_error_name(r), pa_dbus_get_error_message(r));
goto finish;
}
pa_log_info("D-Bus ObjectManager detected so assuming BlueZ version 5.");
y->version = BLUEZ_VERSION_5;
finish:
dbus_message_unref(r);
PA_LLIST_REMOVE(pa_dbus_pending, y->pending, p);
pa_dbus_pending_free(p);
}
static void init_bluez(pa_bluetooth_discovery *y) {
DBusMessage *m;
pa_assert(y);
pa_assert_se(m = dbus_message_new_method_call("org.bluez", "/", "org.freedesktop.DBus.ObjectManager",
"GetManagedObjects"));
send_and_add_to_pending(y, m, get_managed_objects_reply, NULL);
}
static int transport_parse_property(pa_bluetooth_transport *t, DBusMessageIter *i) {
const char *key;
DBusMessageIter variant_i;
@ -1023,11 +1070,12 @@ static DBusHandlerResult filter_cb(DBusConnection *bus, DBusMessage *m, void *us
pa_log_debug("Bluetooth daemon disappeared.");
remove_all_devices(y);
y->adapters_listed = false;
y->version = BLUEZ_VERSION_UNKNOWN;
}
if (new_owner && *new_owner) {
pa_log_debug("Bluetooth daemon appeared.");
list_adapters(y);
init_bluez(y);
}
}
@ -1710,7 +1758,7 @@ pa_bluetooth_discovery* pa_bluetooth_discovery_get(pa_core *c) {
pa_assert_se(dbus_connection_register_object_path(conn, A2DP_SOURCE_ENDPOINT, &vtable_endpoint, y));
pa_assert_se(dbus_connection_register_object_path(conn, A2DP_SINK_ENDPOINT, &vtable_endpoint, y));
list_adapters(y);
init_bluez(y);
return y;