Documentation
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Overview ¶
Package lru implements an LRU cache. lru用于实现LRU cache
Index ¶
Constants ¶
This section is empty.
Variables ¶
This section is empty.
Functions ¶
This section is empty.
Types ¶
type Cache ¶
type Cache struct {
// MaxEntries is the maximum number of cache entries before
// an item is evicted. Zero means no limit.
// 最大入口数 也就是缓冲最多存几条数据 超过了就会触发淘汰 0表示没有限制
MaxEntries int
// OnEvicted optionally specifies a callback function to be
// executed when an entry is purged from the cache.
// 销毁前的回调
OnEvicted func(key Key, value interface{})
// contains filtered or unexported fields
}
Cache is an LRU cache. It is not safe for concurrent access. cache结构用于实现LRU cache 算法,并发访问不安全
func New ¶
New creates a new Cache. If maxEntries is zero, the cache has no limit and it's assumed that eviction is done by the caller. 初始化一个cache类型的实例
func (*Cache) RemoveOldest ¶
func (c *Cache) RemoveOldest()
RemoveOldest removes the oldest item from the cache. 删除最久的
type Key ¶
type Key interface{}
A Key may be any value that is comparable. See http://golang.org/ref/spec#Comparison_operators 任意类型
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