X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fubus.git;a=blobdiff_plain;f=ubusd_obj.c;h=8923821e0827fe3fb904ae57e212ed7cc33f0016;hp=3dd2d7fc3eba0c8ecd11b653ae51914b0499e0f9;hb=7b79b6226e737e28aafb4e9b668b86b5f180314b;hpb=df1af726e211eaaea870f7d2cbc326e5974b9b09

diff --git a/ubusd_obj.c b/ubusd_obj.c
index 3dd2d7f..8923821 100644
--- a/ubusd_obj.c
+++ b/ubusd_obj.c
@@ -1,3 +1,16 @@
+/*
+ * Copyright (C) 2011 Felix Fietkau <nbd@openwrt.org>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License version 2.1
+ * as published by the Free Software Foundation
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ */
+
 #include "ubusd.h"
 #include "ubusd_obj.h"
 
@@ -99,6 +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++;
 
@@ -119,9 +134,6 @@ struct ubus_object *ubusd_create_object(struct ubus_client *cl, struct blob_attr
 	else if (attr[UBUS_ATTR_SIGNATURE])
 		type = ubus_create_obj_type(attr[UBUS_ATTR_SIGNATURE]);
 
-	if (!!type ^ !!attr[UBUS_ATTR_OBJPATH])
-		return NULL;
-
 	obj = ubusd_create_object_internal(type, 0);
 	if (type)
 		ubus_unref_object_type(type);
@@ -135,7 +147,7 @@ struct ubus_object *ubusd_create_object(struct ubus_client *cl, struct blob_attr
 			goto free;
 
 		if (avl_insert(&path, &obj->path) != 0) {
-			free(obj->path.key);
+			free((void *) obj->path.key);
 			obj->path.key = NULL;
 			goto free;
 		}
@@ -152,13 +164,52 @@ 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);
 		avl_delete(&path, &obj->path);
-		free(obj->path.key);
+		free((void *) obj->path.key);
 	}
 	if (!list_empty(&obj->list))
 		list_del(&obj->list);
@@ -168,7 +219,7 @@ void ubusd_free_object(struct ubus_object *obj)
 	free(obj);
 }
 
-static void __init ubusd_obj_init(void)
+static void __constructor ubusd_obj_init(void)
 {
 	ubus_init_id_tree(&objects);
 	ubus_init_id_tree(&obj_types);