X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fubus.git;a=blobdiff_plain;f=ubusd_obj.c;h=3859c45728cbbd1ebe8c4ffff3976101b8c7708e;hp=2248a08422e2e5b4ae02db595deaa9c1b81f6d60;hb=e52db46c9c5d8eabe5abaccf28468c6e0b99be95;hpb=9f911f14bf5febf67d70114b4afb152c6b596ed6

diff --git a/ubusd_obj.c b/ubusd_obj.c
index 2248a08..3859c45 100644
--- a/ubusd_obj.c
+++ b/ubusd_obj.c
@@ -112,6 +112,8 @@ struct ubus_object *ubusd_create_object_internal(struct ubus_object_type *type,
 	obj->type = type;
 	INIT_LIST_HEAD(&obj->list);
 	INIT_LIST_HEAD(&obj->events);
+	INIT_LIST_HEAD(&obj->subscribers);
+	INIT_LIST_HEAD(&obj->target_list);
 	if (type)
 		type->refcount++;
 
@@ -162,8 +164,47 @@ free:
 	return NULL;
 }
 
+void ubus_subscribe(struct ubus_object *obj, struct ubus_object *target)
+{
+	struct ubus_subscription *s;
+	bool first = list_empty(&target->subscribers);
+
+	s = calloc(1, sizeof(*s));
+	if (!s)
+		return;
+
+	s->subscriber = obj;
+	s->target = target;
+	list_add(&s->list, &target->subscribers);
+	list_add(&s->target_list, &obj->target_list);
+
+	if (first)
+		ubus_notify_subscription(target);
+}
+
+void ubus_unsubscribe(struct ubus_subscription *s)
+{
+	struct ubus_object *obj = s->target;
+
+	list_del(&s->list);
+	list_del(&s->target_list);
+	free(s);
+
+	if (list_empty(&obj->subscribers))
+		ubus_notify_subscription(obj);
+}
+
 void ubusd_free_object(struct ubus_object *obj)
 {
+	struct ubus_subscription *s, *tmp;
+
+	list_for_each_entry_safe(s, tmp, &obj->target_list, target_list) {
+		ubus_unsubscribe(s);
+	}
+	list_for_each_entry_safe(s, tmp, &obj->subscribers, list) {
+		ubus_notify_unsubscribe(s);
+	}
+
 	ubusd_event_cleanup_object(obj);
 	if (obj->path.key) {
 		ubusd_send_obj_event(obj, false);