lru_cache

Documentation

Index

• Variables
• type LRUCache
  • func NewLRUCache(capacity int, options ...*LRUCacheOptions) *LRUCache
  • func (cache *LRUCache) ComputeIfAbsent(key interface{}, callback func() interface{}) (result interface{})
  • func (cache *LRUCache) ComputeIfPresent(key interface{}, callback func(value interface{}) interface{}) (result interface{})
  • func (cache *LRUCache) Contains(key interface{}) (result bool)
  • func (cache *LRUCache) Delete(key interface{}) bool
  • func (cache *LRUCache) DeleteAll()
  • func (cache *LRUCache) DeleteWithoutEviction(key interface{}) (existed bool, keyToEvict interface{}, valueToEvict interface{})
  • func (cache *LRUCache) Get(key interface{}) (result interface{})
  • func (cache *LRUCache) GetCapacity() int
  • func (cache *LRUCache) GetSize() int
  • func (cache *LRUCache) Set(key interface{}, value interface{})
• type LRUCacheOptions

Variables

var DEFAULT_OPTIONS = &LRUCacheOptions{
	EvictionCallback:  nil,
	EvictionBatchSize: 1,
	IdleTimeout:       30 * time.Second,
}

Types

type LRUCache

type LRUCache struct {
	// contains filtered or unexported fields
}

func NewLRUCache

func NewLRUCache(capacity int, options ...*LRUCacheOptions) *LRUCache

func (*LRUCache) ComputeIfAbsent

func (cache *LRUCache) ComputeIfAbsent(key interface{}, callback func() interface{}) (result interface{})

func (*LRUCache) ComputeIfPresent

func (cache *LRUCache) ComputeIfPresent(key interface{}, callback func(value interface{}) interface{}) (result interface{})

Calls the callback if an entry with the given key exists. The result of the callback is written back into the cache. If the callback returns nil the entry is removed from the cache. Returns the updated entry.

func (*LRUCache) Contains

func (cache *LRUCache) Contains(key interface{}) (result bool)

func (*LRUCache) Delete

func (cache *LRUCache) Delete(key interface{}) bool

func (*LRUCache) DeleteAll

func (cache *LRUCache) DeleteAll()

func (*LRUCache) DeleteWithoutEviction

func (cache *LRUCache) DeleteWithoutEviction(key interface{}) (existed bool, keyToEvict interface{}, valueToEvict interface{})

func (*LRUCache) Get

func (cache *LRUCache) Get(key interface{}) (result interface{})

func (*LRUCache) GetCapacity

func (cache *LRUCache) GetCapacity() int

func (*LRUCache) GetSize

func (cache *LRUCache) GetSize() int

func (*LRUCache) Set

func (cache *LRUCache) Set(key interface{}, value interface{})

type LRUCacheOptions

type LRUCacheOptions struct {
	EvictionCallback  func(keyOrBatchedKeys interface{}, valueOrBatchedValues interface{})
	EvictionBatchSize uint64
	IdleTimeout       time.Duration
}