Condition *unit_find_failed_condition(Unit *u);
+int unit_arm_timer(Unit *u, sd_event_source **source, bool relative, usec_t usec, sd_event_time_handler_t handler);
+
/* Macros which append UNIT= or USER_UNIT= to the message */
#define log_unit_full_errno_zerook(unit, level, error, ...) \