+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);
+void ust_app_global_update(struct ltt_ust_session *usess, int sock);