Method decreaseOnceFunc

pkg/cache/lrucache.go:82–89

(rc *refCounter)

}

func (c *LRUCache) decreaseOnceFunc(rc *refCounter) func() {
	var once sync.Once
	return func() {
		c.mu.Lock()
		defer c.mu.Unlock()
		once.Do(func() { rc.dec() })
	}
}

type refCounter struct {
	onEvicted func(key string, value interface{})