ordered_events__init
ordered_events__init(&top->qe.data[0], deliver_event, top);
ordered_events__init(&top->qe.data[1], deliver_event, top);
ordered_events__init(&trace.oe.data, ordered_events__deliver_event, &trace);
ordered_events__init(oe, old_deliver, oe->data);
void ordered_events__init(struct ordered_events *oe, ordered_events__deliver_t deliver,
ordered_events__init(&session->ordered_events,