* 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>
*/
LAST_SIGNAL,
};
-guint signals[LAST_SIGNAL] = {0};
+static guint signals[LAST_SIGNAL] = {0};
static void dbus_interface_iface_init (GDBusInterfaceIface *dbus_interface_iface);
static void initable_iface_init (GInitableIface *initable_iface);
static void async_initable_iface_init (GAsyncInitableIface *async_initable_iface);
G_DEFINE_TYPE_WITH_CODE (GDBusProxy, g_dbus_proxy, G_TYPE_OBJECT,
+ G_ADD_PRIVATE (GDBusProxy)
G_IMPLEMENT_INTERFACE (G_TYPE_DBUS_INTERFACE, dbus_interface_iface_init)
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_ASYNC_INITABLE, async_initable_iface_init))
static void
g_dbus_proxy_dispose (GObject *object)
* Ensure that interactions with this proxy conform to the given
* interface. This is mainly to ensure that malformed data received
* from the other peer is ignored. The given #GDBusInterfaceInfo is
- * said to be the <emphasis>expected interface</emphasis>.
+ * said to be the "expected interface".
*
* The checks performed are:
- * <itemizedlist>
- * <listitem><para>
- * When completing a method call, if the type signature of
- * the reply message isn't what's expected, the reply is
- * discarded and the #GError is set to %G_IO_ERROR_INVALID_ARGUMENT.
- * </para></listitem>
- * <listitem><para>
- * Received signals that have a type signature mismatch are dropped and
- * a warning is logged via g_warning().
- * </para></listitem>
- * <listitem><para>
- * Properties received via the initial <literal>GetAll()</literal> call
- * or via the <literal>::PropertiesChanged</literal> signal (on the
- * <ulink url="http://dbus.freedesktop.org/doc/dbus-specification.html#standard-interfaces-properties">org.freedesktop.DBus.Properties</ulink> interface) or
- * set using g_dbus_proxy_set_cached_property() with a type signature
- * mismatch are ignored and a warning is logged via g_warning().
- * </para></listitem>
- * </itemizedlist>
+ * - When completing a method call, if the type signature of
+ * the reply message isn't what's expected, the reply is
+ * discarded and the #GError is set to %G_IO_ERROR_INVALID_ARGUMENT.
+ *
+ * - Received signals that have a type signature mismatch are dropped and
+ * a warning is logged via g_warning().
+ *
+ * - Properties received via the initial <literal>GetAll()</literal> call
+ * or via the <literal>::PropertiesChanged</literal> signal (on the
+ * <ulink url="http://dbus.freedesktop.org/doc/dbus-specification.html#standard-interfaces-properties">org.freedesktop.DBus.Properties</ulink> interface) or
+ * set using g_dbus_proxy_set_cached_property() with a type signature
+ * mismatch are ignored and a warning is logged via g_warning().
+ *
* Note that these checks are never done on methods, signals and
* properties that are not referenced in the given
* #GDBusInterfaceInfo, since extending a D-Bus interface on the
/**
* GDBusProxy:g-name-owner:
*
- * The unique name that owns #GDBusProxy:name or %NULL if no-one
+ * The unique name that owns #GDBusProxy:g-name or %NULL if no-one
* currently owns that name. You may connect to #GObject::notify signal to
* track changes to this property.
*
* that both @changed_properties and @invalidated_properties are
* guaranteed to never be %NULL (either may be empty though).
*
+ * If the proxy has the flag
+ * %G_DBUS_PROXY_FLAGS_GET_INVALIDATED_PROPERTIES set, then
+ * @invalidated_properties will always be empty.
+ *
* This signal corresponds to the
* <literal>PropertiesChanged</literal> D-Bus signal on the
* <literal>org.freedesktop.DBus.Properties</literal> interface.
/**
* GDBusProxy::g-signal:
* @proxy: The #GDBusProxy emitting the signal.
- * @sender_name: The sender of the signal or %NULL if the connection is not a bus connection.
+ * @sender_name: (allow-none): The sender of the signal or %NULL if the connection is not a bus connection.
* @signal_name: The name of the signal.
* @parameters: A #GVariant tuple with parameters for the signal.
*
G_TYPE_STRING,
G_TYPE_VARIANT);
-
- g_type_class_add_private (klass, sizeof (GDBusProxyPrivate));
}
static void
g_dbus_proxy_init (GDBusProxy *proxy)
{
- proxy->priv = G_TYPE_INSTANCE_GET_PRIVATE (proxy, G_TYPE_DBUS_PROXY, GDBusProxyPrivate);
+ proxy->priv = g_dbus_proxy_get_instance_private (proxy);
proxy->priv->signal_subscription_data = g_slice_new0 (SignalSubscriptionData);
proxy->priv->signal_subscription_data->ref_count = 1;
proxy->priv->signal_subscription_data->proxy = proxy;
g_free (property_name);
}
+typedef struct
+{
+ GDBusProxy *proxy;
+ gchar *prop_name;
+} InvalidatedPropGetData;
+
+static void
+invalidated_property_get_cb (GDBusConnection *connection,
+ GAsyncResult *res,
+ gpointer user_data)
+{
+ InvalidatedPropGetData *data = user_data;
+ const gchar *invalidated_properties[] = {NULL};
+ GVariantBuilder builder;
+ GVariant *value = NULL;
+ GVariant *unpacked_value = NULL;
+
+ /* errors are fine, the other end could have disconnected */
+ value = g_dbus_connection_call_finish (connection, res, NULL);
+ if (value == NULL)
+ {
+ goto out;
+ }
+
+ if (!g_variant_is_of_type (value, G_VARIANT_TYPE ("(v)")))
+ {
+ g_warning ("Expected type '(v)' for Get() reply, got '%s'", g_variant_get_type_string (value));
+ goto out;
+ }
+
+ g_variant_get (value, "(v)", &unpacked_value);
+
+ /* synthesize the a{sv} in the PropertiesChanged signal */
+ g_variant_builder_init (&builder, G_VARIANT_TYPE ("a{sv}"));
+ g_variant_builder_add (&builder, "{sv}", data->prop_name, unpacked_value);
+
+ G_LOCK (properties_lock);
+ insert_property_checked (data->proxy,
+ data->prop_name, /* adopts string */
+ unpacked_value); /* adopts value */
+ data->prop_name = NULL;
+ G_UNLOCK (properties_lock);
+
+ g_signal_emit (data->proxy,
+ signals[PROPERTIES_CHANGED_SIGNAL], 0,
+ g_variant_builder_end (&builder), /* consumed */
+ invalidated_properties);
+
+
+ out:
+ if (value != NULL)
+ g_variant_unref (value);
+ g_object_unref (data->proxy);
+ g_free (data->prop_name);
+ g_slice_free (InvalidatedPropGetData, data);
+}
+
static void
on_properties_changed (GDBusConnection *connection,
const gchar *sender_name,
gpointer user_data)
{
SignalSubscriptionData *data = user_data;
+ gboolean emit_g_signal = FALSE;
GDBusProxy *proxy;
const gchar *interface_name_for_signal;
GVariant *changed_properties;
if (!g_variant_is_of_type (parameters, G_VARIANT_TYPE ("(sa{sv}as)")))
{
- g_warning ("Value for PropertiesChanged signal with type `%s' does not match `(sa{sv}as)'",
+ g_warning ("Value for PropertiesChanged signal with type '%s' does not match '(sa{sv}as)'",
g_variant_get_type_string (parameters));
G_UNLOCK (properties_lock);
goto out;
insert_property_checked (proxy,
key, /* adopts string */
value); /* adopts value */
+ emit_g_signal = TRUE;
}
- for (n = 0; invalidated_properties[n] != NULL; n++)
+ if (proxy->priv->flags & G_DBUS_PROXY_FLAGS_GET_INVALIDATED_PROPERTIES)
+ {
+ if (proxy->priv->name_owner != NULL)
+ {
+ for (n = 0; invalidated_properties[n] != NULL; n++)
+ {
+ InvalidatedPropGetData *data;
+ data = g_slice_new0 (InvalidatedPropGetData);
+ data->proxy = g_object_ref (proxy);
+ data->prop_name = g_strdup (invalidated_properties[n]);
+ g_dbus_connection_call (proxy->priv->connection,
+ proxy->priv->name_owner,
+ proxy->priv->object_path,
+ "org.freedesktop.DBus.Properties",
+ "Get",
+ g_variant_new ("(ss)", proxy->priv->interface_name, data->prop_name),
+ G_VARIANT_TYPE ("(v)"),
+ G_DBUS_CALL_FLAGS_NONE,
+ -1, /* timeout */
+ NULL, /* GCancellable */
+ (GAsyncReadyCallback) invalidated_property_get_cb,
+ data);
+ }
+ }
+ }
+ else
{
- g_hash_table_remove (proxy->priv->properties, invalidated_properties[n]);
+ emit_g_signal = TRUE;
+ for (n = 0; invalidated_properties[n] != NULL; n++)
+ {
+ g_hash_table_remove (proxy->priv->properties, invalidated_properties[n]);
+ }
}
G_UNLOCK (properties_lock);
- /* emit signal */
- g_signal_emit (proxy, signals[PROPERTIES_CHANGED_SIGNAL],
- 0,
- changed_properties,
- invalidated_properties);
+ if (emit_g_signal)
+ {
+ g_signal_emit (proxy, signals[PROPERTIES_CHANGED_SIGNAL],
+ 0,
+ changed_properties,
+ invalidated_properties);
+ }
out:
if (changed_properties != NULL)
if (!g_variant_is_of_type (result, G_VARIANT_TYPE ("(a{sv})")))
{
- g_warning ("Value for GetAll reply with type `%s' does not match `(a{sv})'",
+ g_warning ("Value for GetAll reply with type '%s' does not match '(a{sv})'",
g_variant_get_type_string (result));
goto out;
}
* org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.Epiphany2
* was not provided by any .service files
*
+ * or (see #677718)
+ *
+ * org.freedesktop.systemd1.Masked: Unit polkit.service is masked.
+ *
* This doesn't mean that the name doesn't have an owner, just
- * that it's not provided by a .service file. So just proceed to
- * invoke GetNameOwner() if dealing with that error.
+ * that it's not provided by a .service file or can't currently
+ * be started.
+ *
+ * In particular, in both cases, it could be that a service
+ * owner will actually appear later. So instead of erroring out,
+ * we just proceed to invoke GetNameOwner() if dealing with the
+ * kind of errors above.
*/
- if (error->domain == G_DBUS_ERROR &&
- error->code == G_DBUS_ERROR_SERVICE_UNKNOWN)
+ if (error->domain == G_DBUS_ERROR && error->code == G_DBUS_ERROR_SERVICE_UNKNOWN)
{
g_error_free (error);
}
else
{
- g_prefix_error (&error,
- _("Error calling StartServiceByName for %s: "),
- data->proxy->priv->name);
- goto failed;
+ gchar *remote_error = g_dbus_error_get_remote_error (error);
+ if (g_strcmp0 (remote_error, "org.freedesktop.systemd1.Masked") == 0)
+ {
+ g_error_free (error);
+ g_free (remote_error);
+ }
+ else
+ {
+ g_prefix_error (&error,
+ _("Error calling StartServiceByName for %s: "),
+ data->proxy->priv->name);
+ g_free (remote_error);
+ goto failed;
+ }
}
}
else
callback,
user_data,
NULL);
+ g_simple_async_result_set_check_cancellable (data->simple, cancellable);
/* Check name ownership asynchronously - possibly also start the service */
if (proxy->priv->name == NULL)
}
else
{
- if (proxy->priv->flags & G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START)
+ if ((proxy->priv->flags & G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START) ||
+ (proxy->priv->flags & G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START_AT_CONSTRUCTION))
{
async_init_call_get_name_owner (data);
}
data->callback,
data->user_data,
NULL);
+ g_simple_async_result_set_check_cancellable (simple, data->cancellable);
g_simple_async_result_take_error (simple, error);
g_simple_async_result_complete_in_idle (simple);
g_object_unref (simple);
* @name: (allow-none): A bus name (well-known or unique) or %NULL if @connection is not a message bus connection.
* @object_path: An object path.
* @interface_name: A D-Bus interface name.
- * @cancellable: A #GCancellable or %NULL.
+ * @cancellable: (allow-none): A #GCancellable or %NULL.
* @callback: Callback function to invoke when the proxy is ready.
* @user_data: User data to pass to @callback.
*
* to handle signals from the remote object.
*
* If @name is a well-known name and the
- * %G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START flag isn't set and no name
- * owner currently exists, the message bus will be requested to launch
- * a name owner for the name.
+ * %G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START and %G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START_AT_CONSTRUCTION
+ * flags aren't set and no name owner currently exists, the message bus
+ * will be requested to launch a name owner for the name.
*
* This is a failable asynchronous constructor - when the proxy is
* ready, @callback will be invoked and you can use
* to handle signals from the remote object.
*
* If @name is a well-known name and the
- * %G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START flag isn't set and no name
- * owner currently exists, the message bus will be requested to launch
- * a name owner for the name.
+ * %G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START and %G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START_AT_CONSTRUCTION
+ * flags aren't set and no name owner currently exists, the message bus
+ * will be requested to launch a name owner for the name.
*
* This is a synchronous failable constructor. See g_dbus_proxy_new()
* and g_dbus_proxy_new_finish() for the asynchronous version.
* @name: A bus name (well-known or unique).
* @object_path: An object path.
* @interface_name: A D-Bus interface name.
- * @cancellable: A #GCancellable or %NULL.
+ * @cancellable: (allow-none): A #GCancellable or %NULL.
* @callback: Callback function to invoke when the proxy is ready.
* @user_data: User data to pass to @callback.
*
* @name: A bus name (well-known or unique).
* @object_path: An object path.
* @interface_name: A D-Bus interface name.
- * @cancellable: A #GCancellable or %NULL.
+ * @cancellable: (allow-none): A #GCancellable or %NULL.
* @error: Return location for error or %NULL.
*
* Like g_dbus_proxy_new_sync() but takes a #GBusType instead of a #GDBusConnection.
const gchar *target_interface_name;
gchar *destination;
GVariantType *reply_type;
+ GAsyncReadyCallback my_callback;
g_return_if_fail (G_IS_DBUS_PROXY (proxy));
g_return_if_fail (g_dbus_is_member_name (method_name) || g_dbus_is_interface_name (method_name));
reply_type = NULL;
split_interface_name = NULL;
- simple = g_simple_async_result_new (G_OBJECT (proxy),
- callback,
- user_data,
- g_dbus_proxy_call_internal);
+ /* g_dbus_connection_call() is optimised for the case of a NULL
+ * callback. If we get a NULL callback from our user then make sure
+ * we pass along a NULL callback for ourselves as well.
+ */
+ if (callback != NULL)
+ {
+ my_callback = (GAsyncReadyCallback) reply_cb;
+ simple = g_simple_async_result_new (G_OBJECT (proxy),
+ callback,
+ user_data,
+ g_dbus_proxy_call_internal);
+ g_simple_async_result_set_check_cancellable (simple, cancellable);
+ }
+ else
+ {
+ my_callback = NULL;
+ simple = NULL;
+ }
G_LOCK (properties_lock);
destination = g_strdup (get_destination_for_call (proxy));
if (destination == NULL)
{
- g_simple_async_result_set_error (simple,
- G_IO_ERROR,
- G_IO_ERROR_FAILED,
- _("Cannot invoke method; proxy is for a well-known name without an owner and proxy was constructed with the G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START flag"));
+ if (simple != NULL)
+ {
+ g_simple_async_result_set_error (simple,
+ G_IO_ERROR,
+ G_IO_ERROR_FAILED,
+ _("Cannot invoke method; proxy is for a well-known name without an owner and proxy was constructed with the G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START flag"));
+ g_simple_async_result_complete_in_idle (simple);
+ g_object_unref (simple);
+ }
G_UNLOCK (properties_lock);
goto out;
}
timeout_msec == -1 ? proxy->priv->timeout_msec : timeout_msec,
fd_list,
cancellable,
- (GAsyncReadyCallback) reply_cb,
+ my_callback,
simple);
#else
g_dbus_connection_call (proxy->priv->connection,
flags,
timeout_msec == -1 ? proxy->priv->timeout_msec : timeout_msec,
cancellable,
- (GAsyncReadyCallback) reply_cb,
+ my_callback,
simple);
#endif
* @flags: Flags from the #GDBusCallFlags enumeration.
* @timeout_msec: The timeout in milliseconds (with %G_MAXINT meaning
* "infinite") or -1 to use the proxy default timeout.
- * @cancellable: A #GCancellable or %NULL.
- * @callback: A #GAsyncReadyCallback to call when the request is satisfied or %NULL if you don't
+ * @cancellable: (allow-none): A #GCancellable or %NULL.
+ * @callback: (allow-none): A #GAsyncReadyCallback to call when the request is satisfied or %NULL if you don't
* care about the result of the method invocation.
* @user_data: The data to pass to @callback.
*
* -1,
* NULL,
* (GAsyncReadyCallback) two_strings_done,
- * &data);
+ * &data);
* ]|
*
* If @proxy has an expected interface (see
* the operation. See g_dbus_proxy_call_sync() for the synchronous
* version of this method.
*
+ * If @callback is %NULL then the D-Bus method call message will be sent with
+ * the %G_DBUS_MESSAGE_FLAGS_NO_REPLY_EXPECTED flag set.
+ *
* Since: 2.26
*/
void
* @flags: Flags from the #GDBusCallFlags enumeration.
* @timeout_msec: The timeout in milliseconds (with %G_MAXINT meaning
* "infinite") or -1 to use the proxy default timeout.
- * @cancellable: A #GCancellable or %NULL.
+ * @cancellable: (allow-none): A #GCancellable or %NULL.
* @error: Return location for error or %NULL.
*
* Synchronously invokes the @method_name method on @proxy.
* G_DBUS_CALL_FLAGS_NONE,
* -1,
* NULL,
- * &error);
+ * &error);
* ]|
*
* The calling thread is blocked until a reply is received. See
* @timeout_msec: The timeout in milliseconds (with %G_MAXINT meaning
* "infinite") or -1 to use the proxy default timeout.
* @fd_list: (allow-none): A #GUnixFDList or %NULL.
- * @cancellable: A #GCancellable or %NULL.
- * @callback: A #GAsyncReadyCallback to call when the request is satisfied or %NULL if you don't
+ * @cancellable: (allow-none): A #GCancellable or %NULL.
+ * @callback: (allow-none): A #GAsyncReadyCallback to call when the request is satisfied or %NULL if you don't
* care about the result of the method invocation.
* @user_data: The data to pass to @callback.
*
/**
* g_dbus_proxy_call_with_unix_fd_list_finish:
* @proxy: A #GDBusProxy.
- * @out_fd_list: (out): Return location for a #GUnixFDList or %NULL.
+ * @out_fd_list: (out) (allow-none): Return location for a #GUnixFDList or %NULL.
* @res: A #GAsyncResult obtained from the #GAsyncReadyCallback passed to g_dbus_proxy_call_with_unix_fd_list().
* @error: Return location for error or %NULL.
*
* @timeout_msec: The timeout in milliseconds (with %G_MAXINT meaning
* "infinite") or -1 to use the proxy default timeout.
* @fd_list: (allow-none): A #GUnixFDList or %NULL.
- * @out_fd_list: (out): Return location for a #GUnixFDList or %NULL.
- * @cancellable: A #GCancellable or %NULL.
+ * @out_fd_list: (out) (allow-none): Return location for a #GUnixFDList or %NULL.
+ * @cancellable: (allow-none): A #GCancellable or %NULL.
* @error: Return location for error or %NULL.
*
* Like g_dbus_proxy_call_sync() but also takes and returns #GUnixFDList objects.