event_haveevents 137 opal/mca/event/libevent2022/libevent/event.c static int event_haveevents(struct event_base *); event_haveevents 1619 opal/mca/event/libevent2022/libevent/event.c if (!event_haveevents(base) && !N_ACTIVE_CALLBACKS(base)) {