pacemakerd_event_cb  332 daemons/pacemakerd/pacemakerd.c     pcmk_register_ipc_callback(old_instance, pacemakerd_event_cb, NULL);
pacemakerd_event_cb  444 lib/pacemaker/pcmk_cluster_queries.c                                  pacemakerd_event_cb, dispatch_type, true);
pacemakerd_event_cb  945 tools/crm_mon.c     pcmk_register_ipc_callback(pacemakerd_api, pacemakerd_event_cb, (void *) &state);