gdbus: Add skeleton of DBus.Properties interface

This interface is responsible for handling properties of all objects in
a given path. Right now it only registers itself, doing nothing useful.
A conversion to this new layout will be done by subsequent patches.

org.freedesktop.org.DBus.Properties spec can be found at
http://dbus.freedesktop.org/doc/dbus-specification.html#standard-interfaces-properties

diff --git a/gdbus/object.c b/gdbus/object.c
index 24e8285..6c11528 100644 (file)
--- a/gdbus/object.c
+++ b/gdbus/object.c
@@ -507,6 +507,48 @@ static const GDBusMethodTable introspect_methods[] = {
        { }
 };
 
+static DBusMessage *properties_get(DBusConnection *connection,
+                                       DBusMessage *message, void *user_data)
+{
+       return NULL;
+}
+
+static DBusMessage *properties_get_all(DBusConnection *connection,
+                                       DBusMessage *message, void *user_data)
+{
+       return NULL;
+}
+
+static DBusMessage *properties_set(DBusConnection *connection,
+                                       DBusMessage *message, void *user_data)
+{
+       return dbus_message_new_method_return(message);
+}
+
+static const GDBusMethodTable properties_methods[] = {
+       { GDBUS_METHOD("Get",
+                       GDBUS_ARGS({ "interface", "s" }, { "name", "s" }),
+                       GDBUS_ARGS({ "value", "v" }),
+                       properties_get) },
+       { GDBUS_ASYNC_METHOD("Set", NULL,
+                       GDBUS_ARGS({ "interface", "s" }, { "name", "s" },
+                                                       { "value", "v" }),
+                       properties_set) },
+       { GDBUS_METHOD("GetAll",
+                       GDBUS_ARGS({ "interface", "s" }),
+                       GDBUS_ARGS({ "properties", "a{sv}" }),
+                       properties_get_all) },
+       { }
+};
+
+static const GDBusSignalTable properties_signals[] = {
+       { GDBUS_SIGNAL("PropertiesChanged",
+                       GDBUS_ARGS({ "interface", "s" },
+                                       { "changed_properties", "a{sv}" },
+                                       { "invalidated_properties", "as"})) },
+       { }
+};
+
 static void add_interface(struct generic_data *data, const char *name,
                                const GDBusMethodTable *methods,
                                const GDBusSignalTable *signals,
@@ -557,6 +599,9 @@ static struct generic_data *object_path_ref(DBusConnection *connection,
        add_interface(data, DBUS_INTERFACE_INTROSPECTABLE,
                        introspect_methods, NULL, NULL, data, NULL);
 
+       add_interface(data, DBUS_INTERFACE_PROPERTIES, properties_methods,
+                                       properties_signals, NULL, data, NULL);
+
        return data;
 }
 
@@ -596,6 +641,7 @@ static void object_path_unref(DBusConnection *connection, const char *path)
                return;
 
        remove_interface(data, DBUS_INTERFACE_INTROSPECTABLE);
+       remove_interface(data, DBUS_INTERFACE_PROPERTIES);
 
        invalidate_parent_data(connection, path);