sd_event_add_post  133 src/login/logind-button.c         r = sd_event_add_post(b->manager->event, &b->check_event_source, button_recheck, b);
sd_event_add_post   86 src/systemd/sd-event.h int sd_event_add_post(sd_event *e, sd_event_source **s, sd_event_handler_t callback, void *userdata);