+int ust_app_start_trace(struct ltt_ust_session *usess, struct ust_app *app);
+int ust_app_stop_trace(struct ltt_ust_session *usess, struct ust_app *app);
+int ust_app_start_trace_all(struct ltt_ust_session *usess);
+int ust_app_stop_trace_all(struct ltt_ust_session *usess);
+int ust_app_destroy_trace(struct ltt_ust_session *usess, struct ust_app *app);
+int ust_app_destroy_trace_all(struct ltt_ust_session *usess);
+int ust_app_list_events(struct lttng_event **events);
+int ust_app_disable_channel_all(struct ltt_ust_session *usess,
+ struct ltt_ust_channel *uchan);
+int ust_app_enable_channel_all(struct ltt_ust_session *usess,
+ struct ltt_ust_channel *uchan);
+int ust_app_enable_event_all(struct ltt_ust_session *usess,
+ struct ltt_ust_channel *uchan, struct ltt_ust_event *uevent);
+int ust_app_disable_event_all(struct ltt_ust_session *usess,
+ struct ltt_ust_channel *uchan);
+int ust_app_disable_event(struct ltt_ust_session *usess,
+ struct ltt_ust_channel *uchan, char *event_name);