(void) serialize_item(f, "state", timer_state_to_string(t->state));
(void) serialize_item(f, "result", timer_result_to_string(t->result));
- if (t->last_trigger.realtime > 0)
+ if (dual_timestamp_is_set(&t->last_trigger))
(void) serialize_usec(f, "last-trigger-realtime", t->last_trigger.realtime);
if (t->last_trigger.monotonic > 0)