Method Do

utils/once.go:31–42

Do handles once logic.

(f func())

// Do handles once logic.
func (o *Once) Do(f func()) {
	if atomic.LoadUint32(&o.done) == 1 {
		return
	}
	// Slow-path.
	o.m.Lock()
	defer o.m.Unlock()
	if o.done == 0 {
		defer atomic.StoreUint32(&o.done, 1)
		f()
	}
}

// Reset make the once object to be initialized once again.
func (o *Once) Reset() {