Method Walk

kv/table/cache.go:242–256

Walk walks the old entries, if it's expired, need to remove.

(fn func(entry *cacheEntry) bool)

// Walk walks the old entries, if it's expired, need to remove.
func (c *LRUCache) Walk(fn func(entry *cacheEntry) bool) {
	size := len(c.items)
	for i := 0; i < size; i++ {
		// get oldest entry
		ent := c.evictList.Back()
		if ent != nil {
			entry := ent.Value.(*cacheEntry)
			if fn(entry) {
				c.removeElement(ent)
			} else {
				break
			}
		}
	}
}

// Purge is used to completely clear the cache.
func (c *LRUCache) Purge(fn func(entry *cacheEntry)) {