int manager_get_user_from_creds(Manager *m, sd_bus_message *message, uid_t uid, sd_bus_error *error, User **ret);
int manager_get_seat_from_creds(Manager *m, sd_bus_message *message, const char *name, sd_bus_error *error, Seat **ret);
-#if 0 /// UNNEEDED by elogind
int manager_setup_wall_message_timer(Manager *m);
bool logind_wall_tty_filter(const char *tty, void *userdata);
-#endif // 0
int manager_dispatch_delayed(Manager *manager, bool timeout);