APM_MAX_EVENTS
if (++as->event_tail >= APM_MAX_EVENTS)
if (++as->event_head >= APM_MAX_EVENTS)
if (++as->event_tail >= APM_MAX_EVENTS)
apm_event_t events[APM_MAX_EVENTS];
q->event_tail = (q->event_tail + 1) % APM_MAX_EVENTS;
q->event_head = (q->event_head + 1) % APM_MAX_EVENTS;
q->event_tail = (q->event_tail + 1) % APM_MAX_EVENTS;
apm_event_t events[APM_MAX_EVENTS];