void *(*create_value)(void *creation_closure),
void (*free_value)(void*),
void *creation_closure);
+
+ int (*subscribe_eventid)(
+ struct afb_request *request,
+ struct afb_eventid *eventid);
+
+ int (*unsubscribe_eventid)(
+ struct afb_request *request,
+ struct afb_eventid *eventid);
};