X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fubus.git;a=blobdiff_plain;f=libubus.h;h=19a421779c560eff922b036f957d741dbb8b7e7a;hp=e0e418b143921cb5ba7a2b0a74c778cdb0ff6a6b;hb=a69f062cbd4041229f8d29ef9647bf783df414c1;hpb=c0c06ec7ead11ca201bcbf0d1c7e986c7d3c90c0

diff --git a/libubus.h b/libubus.h
index e0e418b..19a4217 100644
--- a/libubus.h
+++ b/libubus.h
@@ -11,6 +11,9 @@
  * GNU General Public License for more details.
  */
 
+#ifndef __LIBUBUS_H
+#define __LIBUBUS_H
+
 #include <libubox/avl.h>
 #include <libubox/list.h>
 #include <libubox/blobmsg.h>
@@ -26,6 +29,7 @@ struct ubus_request;
 struct ubus_request_data;
 struct ubus_object_data;
 struct ubus_event_handler;
+struct ubus_subscriber;
 
 typedef void (*ubus_lookup_handler_t)(struct ubus_context *ctx,
 				      struct ubus_object_data *obj,
@@ -33,6 +37,9 @@ typedef void (*ubus_lookup_handler_t)(struct ubus_context *ctx,
 typedef int (*ubus_handler_t)(struct ubus_context *ctx, struct ubus_object *obj,
 			      struct ubus_request_data *req,
 			      const char *method, struct blob_attr *msg);
+typedef void (*ubus_state_handler_t)(struct ubus_context *ctx, struct ubus_object *obj);
+typedef void (*ubus_remove_handler_t)(struct ubus_context *ctx,
+				      struct ubus_subscriber *obj, uint32_t id);
 typedef void (*ubus_event_handler_t)(struct ubus_context *ctx, struct ubus_event_handler *ev,
 				     const char *type, struct blob_attr *msg);
 typedef void (*ubus_data_handler_t)(struct ubus_request *req,
@@ -80,10 +87,20 @@ struct ubus_object {
 	const char *path;
 	struct ubus_object_type *type;
 
+	ubus_state_handler_t subscribe_cb;
+	bool has_subscribers;
+
 	const struct ubus_method *methods;
 	int n_methods;
 };
 
+struct ubus_subscriber {
+	struct ubus_object obj;
+
+	ubus_handler_t cb;
+	ubus_remove_handler_t remove_cb;
+};
+
 struct ubus_event_handler {
 	struct ubus_object obj;
 
@@ -120,6 +137,8 @@ struct ubus_request_data {
 	uint32_t object;
 	uint32_t peer;
 	uint32_t seq;
+	bool deferred;
+	bool notify;
 };
 
 struct ubus_request {
@@ -144,6 +163,7 @@ struct ubus_request {
 
 
 struct ubus_context *ubus_connect(const char *path);
+int ubus_reconnect(struct ubus_context *ctx, const char *path);
 void ubus_free(struct ubus_context *ctx);
 
 const char *ubus_strerror(int error);
@@ -185,6 +205,11 @@ int ubus_add_object(struct ubus_context *ctx, struct ubus_object *obj);
 /* remove the object from the ubus connection */
 int ubus_remove_object(struct ubus_context *ctx, struct ubus_object *obj);
 
+/* add a subscriber notifications from another object */
+int ubus_register_subscriber(struct ubus_context *ctx, struct ubus_subscriber *obj);
+int ubus_subscribe(struct ubus_context *ctx, struct ubus_subscriber *obj, uint32_t id);
+int ubus_unsubscribe(struct ubus_context *ctx, struct ubus_subscriber *obj, uint32_t id);
+
 /* ----------- rpc ----------- */
 
 /* invoke a method on a specific object */
@@ -200,6 +225,17 @@ int ubus_invoke_async(struct ubus_context *ctx, uint32_t obj, const char *method
 int ubus_send_reply(struct ubus_context *ctx, struct ubus_request_data *req,
 		    struct blob_attr *msg);
 
+static inline void ubus_defer_request(struct ubus_context *ctx,
+				      struct ubus_request_data *req,
+				      struct ubus_request_data *new_req)
+{
+    memcpy(new_req, req, sizeof(*req));
+    req->deferred = true;
+}
+
+void ubus_complete_deferred_request(struct ubus_context *ctx,
+				    struct ubus_request_data *req, int ret);
+
 /* ----------- events ----------- */
 
 int ubus_send_event(struct ubus_context *ctx, const char *id,
@@ -214,3 +250,5 @@ static inline int ubus_unregister_event_handler(struct ubus_context *ctx,
 {
     return ubus_remove_object(ctx, &ev->obj);
 }
+
+#endif