* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
- * Public License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
- * Boston, MA 02111-1307, USA.
+ * Public License along with this library; if not, see <http://www.gnu.org/licenses/>.
*
* Author: David Zeuthen <davidz@redhat.com>
*/
*
* #GDBusObjectManagerClient is used to create, monitor and delete object
* proxies for remote objects exported by a #GDBusObjectManagerServer (or any
- * code implementing the <ulink
- * url="http://dbus.freedesktop.org/doc/dbus-specification.html#standard-interfaces-objectmanager">org.freedesktop.DBus.ObjectManager</ulink>
+ * code implementing the
+ * [org.freedesktop.DBus.ObjectManager](http://dbus.freedesktop.org/doc/dbus-specification.html#standard-interfaces-objectmanager)
* interface).
*
* Once an instance of this type has been created, you can connect to
* is set to the new name owner (this includes emission of the
* #GObject::notify signal). Furthermore, you are guaranteed that
* #GDBusObjectManagerClient:name-owner will alternate between a name owner
- * (e.g. <literal>:1.42</literal>) and %NULL even in the case where
+ * (e.g. `:1.42`) and %NULL even in the case where
* the name of interest is atomically replaced
*
* Ultimately, #GDBusObjectManagerClient is used to obtain #GDBusProxy
* instances. All signals (including the
- * <literal>org.freedesktop.DBus.Properties::PropertiesChanged</literal>
- * signal) delivered to #GDBusProxy instances are guaranteed to
- * originate from the name owner. This guarantee along with the
- * behavior described above, means that certain race conditions
- * including the <emphasis><quote>half the proxy is from the old owner
- * and the other half is from the new owner</quote></emphasis> problem
- * cannot happen.
+ * org.freedesktop.DBus.Properties::PropertiesChanged signal)
+ * delivered to #GDBusProxy instances are guaranteed to originate
+ * from the name owner. This guarantee along with the behavior
+ * described above, means that certain race conditions including the
+ * "half the proxy is from the old owner and the other half is from
+ * the new owner" problem cannot happen.
*
* To avoid having the application connect to signals on the returned
* #GDBusObjectProxy and #GDBusProxy objects, the
* #GDBusObjectManagerClient::interface-proxy-signal.
*
* Note that all callbacks and signals are emitted in the
- * <link linkend="g-main-context-push-thread-default">thread-default main loop</link>
+ * [thread-default main context][g-main-context-push-thread-default]
* that the #GDBusObjectManagerClient object was constructed
* in. Additionally, the #GDBusObjectProxy and #GDBusProxy objects
* originating from the #GDBusObjectManagerClient object will be created in
static void dbus_object_manager_interface_init (GDBusObjectManagerIface *iface);
G_DEFINE_TYPE_WITH_CODE (GDBusObjectManagerClient, g_dbus_object_manager_client, G_TYPE_OBJECT,
+ G_ADD_PRIVATE (GDBusObjectManagerClient)
G_IMPLEMENT_INTERFACE (G_TYPE_INITABLE, initable_iface_init)
G_IMPLEMENT_INTERFACE (G_TYPE_ASYNC_INITABLE, async_initable_iface_init)
G_IMPLEMENT_INTERFACE (G_TYPE_DBUS_OBJECT_MANAGER, dbus_object_manager_interface_init));
break;
default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (_object, prop_id, pspec);
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (manager, prop_id, pspec);
break;
}
}
GParamSpec *pspec)
{
GDBusObjectManagerClient *manager = G_DBUS_OBJECT_MANAGER_CLIENT (_object);
+ const gchar *name;
switch (prop_id)
{
case PROP_NAME:
g_assert (manager->priv->name == NULL);
- g_assert (g_dbus_is_name (g_value_get_string (value)));
- manager->priv->name = g_value_dup_string (value);
+ name = g_value_get_string (value);
+ g_assert (name == NULL || g_dbus_is_name (name));
+ manager->priv->name = g_strdup (name);
break;
case PROP_FLAGS:
break;
default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID (_object, prop_id, pspec);
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (manager, prop_id, pspec);
break;
}
}
* connect signals to all interface proxies managed by @manager.
*
* This signal is emitted in the
- * <link linkend="g-main-context-push-thread-default">thread-default main loop</link>
+ * [thread-default main context][g-main-context-push-thread-default]
* that @manager was constructed in.
*
* Since: 2.30
* connect signals to all interface proxies managed by @manager.
*
* This signal is emitted in the
- * <link linkend="g-main-context-push-thread-default">thread-default main loop</link>
+ * [thread-default main context][g-main-context-push-thread-default]
* that @manager was constructed in.
*
* Since: 2.30
G_TYPE_DBUS_PROXY,
G_TYPE_VARIANT,
G_TYPE_STRV);
-
- g_type_class_add_private (klass, sizeof (GDBusObjectManagerClientPrivate));
}
static void
g_dbus_object_manager_client_init (GDBusObjectManagerClient *manager)
{
- manager->priv = G_TYPE_INSTANCE_GET_PRIVATE (manager,
- G_TYPE_DBUS_OBJECT_MANAGER_CLIENT,
- GDBusObjectManagerClientPrivate);
+ manager->priv = g_dbus_object_manager_client_get_instance_private (manager);
g_mutex_init (&manager->priv->lock);
manager->priv->map_object_path_to_object_proxy = g_hash_table_new_full (g_str_hash,
g_str_equal,
* g_dbus_object_manager_client_new_sync:
* @connection: A #GDBusConnection.
* @flags: Zero or more flags from the #GDBusObjectManagerClientFlags enumeration.
- * @name: The owner of the control object (unique or well-known name).
+ * @name: (allow-none): The owner of the control object (unique or well-known name), or %NULL when not using a message bus connection.
* @object_path: The object path of the control object.
* @get_proxy_type_func: (allow-none): A #GDBusProxyTypeFunc function or %NULL to always construct #GDBusProxy proxies.
* @get_proxy_type_user_data: User data to pass to @get_proxy_type_func.
*
* This is an asynchronous failable constructor. When the result is
* ready, @callback will be invoked in the
- * <link linkend="g-main-context-push-thread-default">thread-default main loop</link>
+ * [thread-default main context][g-main-context-push-thread-default]
* of the thread you are calling this method from. You can
* then call g_dbus_object_manager_client_new_finish() to get the result. See
* g_dbus_object_manager_client_new_sync() for the synchronous version.
*
* This is an asynchronous failable constructor. When the result is
* ready, @callback will be invoked in the
- * <link linkend="g-main-context-push-thread-default">thread-default main loop</link>
+ * [thread-default main loop][g-main-context-push-thread-default]
* of the thread you are calling this method from. You can
* then call g_dbus_object_manager_client_new_for_bus_finish() to get the result. See
* g_dbus_object_manager_client_new_for_bus_sync() for the synchronous version.
* g_dbus_object_manager_client_get_name:
* @manager: A #GDBusObjectManagerClient
*
- * Gets the name that @manager is for.
+ * Gets the name that @manager is for, or %NULL if not a message bus
+ * connection.
*
* Returns: A unique or well-known name. Do not free, the string
* belongs to @manager.
* #GObject::notify signal to track changes to the
* #GDBusObjectManagerClient:name-owner property.
*
- * Returns: The name owner or %NULL if no name owner exists. Free with
- * g_free().
+ * Returns: (nullable): The name owner or %NULL if no name owner
+ * exists. Free with g_free().
*
* Since: 2.30
*/
//g_debug ("yay, signal_cb %s %s: %s\n", signal_name, object_path, g_variant_print (parameters, TRUE));
+ g_object_ref (manager);
if (g_strcmp0 (interface_name, "org.freedesktop.DBus.Properties") == 0)
{
if (g_strcmp0 (signal_name, "PropertiesChanged") == 0)
g_object_unref (interface);
}
}
+ g_object_unref (manager);
out:
g_clear_object (&object_proxy);
subscribe_signals (GDBusObjectManagerClient *manager,
const gchar *name_owner)
{
- GError *error;
+ GError *error = NULL;
GVariant *ret;
g_return_if_fail (G_IS_DBUS_OBJECT_MANAGER_CLIENT (manager));
g_return_if_fail (manager->priv->signal_subscription_id == 0);
- g_return_if_fail (g_dbus_is_unique_name (name_owner));
+ g_return_if_fail (name_owner == NULL || g_dbus_is_unique_name (name_owner));
- /* the bus daemon may not implement path_prefix so gracefully
- * handle this by using a fallback
- */
- manager->priv->match_rule = g_strdup_printf ("type='signal',sender='%s',path_namespace='%s'",
- name_owner,
- manager->priv->object_path);
-
- error = NULL;
- ret = g_dbus_connection_call_sync (manager->priv->connection,
- "org.freedesktop.DBus",
- "/org/freedeskop/DBus",
- "org.freedesktop.DBus",
- "AddMatch",
- g_variant_new ("(s)",
- manager->priv->match_rule),
- NULL, /* reply_type */
- G_DBUS_CALL_FLAGS_NONE,
- -1, /* default timeout */
- NULL, /* TODO: Cancellable */
- &error);
- if (ret != NULL)
+ if (name_owner != NULL)
{
+ /* Only add path_namespace if it's non-'/'. This removes a no-op key from
+ * the match rule, and also works around a D-Bus bug where
+ * path_namespace='/' matches nothing in D-Bus versions < 1.6.18.
+ *
+ * See: https://bugs.freedesktop.org/show_bug.cgi?id=70799 */
+ if (g_str_equal (manager->priv->object_path, "/"))
+ {
+ manager->priv->match_rule = g_strdup_printf ("type='signal',sender='%s'",
+ name_owner);
+ }
+ else
+ {
+ manager->priv->match_rule = g_strdup_printf ("type='signal',sender='%s',path_namespace='%s'",
+ name_owner, manager->priv->object_path);
+ }
+
+ /* The bus daemon may not implement path_namespace so gracefully
+ * handle this by using a fallback triggered if @error is set. */
+ ret = g_dbus_connection_call_sync (manager->priv->connection,
+ "org.freedesktop.DBus",
+ "/org/freedesktop/DBus",
+ "org.freedesktop.DBus",
+ "AddMatch",
+ g_variant_new ("(s)",
+ manager->priv->match_rule),
+ NULL, /* reply_type */
+ G_DBUS_CALL_FLAGS_NONE,
+ -1, /* default timeout */
+ NULL, /* TODO: Cancellable */
+ &error);
+
/* yay, bus daemon supports path_namespace */
- g_variant_unref (ret);
+ if (ret != NULL)
+ g_variant_unref (ret);
+ }
+ if (error == NULL)
+ {
/* still need to ask GDBusConnection for the callbacks */
manager->priv->signal_subscription_id =
g_dbus_connection_signal_subscribe (manager->priv->connection,
*/
g_dbus_connection_call (manager->priv->connection,
"org.freedesktop.DBus",
- "/org/freedeskop/DBus",
+ "/org/freedesktop/DBus",
"org.freedesktop.DBus",
"RemoveMatch",
g_variant_new ("(s)",
new_name_owner = g_dbus_proxy_get_name_owner (manager->priv->control_proxy);
manager->priv->name_owner = NULL;
+ g_object_ref (manager);
if (g_strcmp0 (old_name_owner, new_name_owner) != 0)
{
GList *l;
}
g_free (old_name_owner);
+ g_object_unref (manager);
}
static gboolean
proxy_flags = G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES;
if (manager->priv->flags & G_DBUS_OBJECT_MANAGER_CLIENT_FLAGS_DO_NOT_AUTO_START)
- proxy_flags |= G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START;;
+ proxy_flags |= G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START;
manager->priv->control_proxy = g_dbus_proxy_new_sync (manager->priv->connection,
proxy_flags,
G_CALLBACK (on_notify_g_name_owner),
manager);
+ g_signal_connect (manager->priv->control_proxy,
+ "g-signal",
+ G_CALLBACK (on_control_proxy_g_signal),
+ manager);
+
manager->priv->name_owner = g_dbus_proxy_get_name_owner (manager->priv->control_proxy);
- if (manager->priv->name_owner == NULL)
+ if (manager->priv->name_owner == NULL && manager->priv->name != NULL)
{
/* it's perfectly fine if there's no name owner.. we're just going to
* wait until one is ready
}
else
{
- /* yay, we have a name owner */
- g_signal_connect (manager->priv->control_proxy,
- "g-signal",
- G_CALLBACK (on_control_proxy_g_signal),
- manager);
+ /* yay, we can get the objects */
subscribe_signals (manager,
manager->priv->name_owner);
value = g_dbus_proxy_call_sync (manager->priv->control_proxy,
GList *interface_added_signals, *l;
GDBusProxy *interface_proxy;
- g_return_if_fail (g_dbus_is_unique_name (name_owner));
+ g_return_if_fail (name_owner == NULL || g_dbus_is_unique_name (name_owner));
g_mutex_lock (&manager->priv->lock);
g_mutex_unlock (&manager->priv->lock);
/* now that we don't hold the lock any more, emit signals */
+ g_object_ref (manager);
for (l = interface_added_signals; l != NULL; l = l->next)
{
interface_proxy = G_DBUS_PROXY (l->data);
op);
g_signal_emit_by_name (manager, "object-added", op);
}
+ g_object_unref (manager);
g_object_unref (op);
-
}
static void
num_interfaces_to_remove = g_strv_length ((gchar **) interface_names);
/* see if we are going to completety remove the object */
+ g_object_ref (manager);
if (num_interfaces_to_remove == num_interfaces)
{
g_object_ref (op);
}
g_object_unref (op);
}
+ g_object_unref (manager);
out:
;
}
GVariant *ifaces_and_properties;
GVariantIter iter;
- g_return_if_fail (g_dbus_is_unique_name (name_owner));
+ g_return_if_fail (name_owner == NULL || g_dbus_is_unique_name (name_owner));
arg0 = g_variant_get_child_value (value, 0);
g_variant_iter_init (&iter, arg0);
projects / platform / upstream / glib.git / blobdiff