package store type eventQueue struct { Events []*Event Size int Front int Back int Capacity int } func (eq *eventQueue) insert(e *Event) { eq.Events[eq.Back] = e eq.Back = (eq.Back + 1) % eq.Capacity if eq.Size == eq.Capacity { //dequeue eq.Front = (eq.Front + 1) % eq.Capacity } else { eq.Size++ } }