cache

package

v0.1.1 Latest Latest Go to latest Published: Oct 16, 2020 License: GPL-3.0 Imports: 2 Imported by: 0

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

func New(config CtorConfig) *Cache

func (c *Cache) Capacity() int

func (c *Cache) Contains(key KeyType) bool

func (c *Cache) Get(key KeyType) (ValueType, bool)

查询缓存中是否存在 key，存在则 ok = true，并返回 value 不存在，则尝试调用初始化函数生成 value 并存入缓存中，存入成功，也会返回 true

func (c *Cache) Len() int

func (c *Cache) Purge()

func (c *Cache) Query(key KeyType) (value ValueType, ok bool)

查询缓存中是否存在 key，存在则 ok = true，并返回 value 不存在则 ok = false

func (c *Cache) Remove(key KeyType) bool

func (c *Cache) Set(key KeyType, value ValueType) (evicted bool)

type CtorConfig struct {
	Capacity  int
	AllocFunc ValueAllocationFunc
}

type KeyType = interface{}

type ValueAllocationFunc func(key KeyType) (value ValueType, ok bool)

type ValueType = interface{}