memorydb

Documentation

Index

• func NewLRUCache(capacity int) db.Database
• type LRUCache
  • func (c *LRUCache) Close()
  • func (c *LRUCache) Delete(key []byte) error
  • func (c *LRUCache) EnlargeCapacity(newCapacity int) error
  • func (c *LRUCache) Get(key []byte) ([]byte, error)
  • func (c *LRUCache) Keys() []interface{}
  • func (c *LRUCache) Len() int
  • func (c *LRUCache) Put(key []byte, value []byte) error
• type Pair

Functions

func NewLRUCache

func NewLRUCache(capacity int) db.Database

NewLRUCache New function

Types

type LRUCache

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

LRUCache cache struct

func (*LRUCache) Close

func (c *LRUCache) Close()

func (*LRUCache) Delete

func (c *LRUCache) Delete(key []byte) error

Del delete cached value from cache Params:

• key: cache key

func (*LRUCache) EnlargeCapacity

func (c *LRUCache) EnlargeCapacity(newCapacity int) error

EnlargeCapacity enlarge the capacity of cache

func (*LRUCache) Get

func (c *LRUCache) Get(key []byte) ([]byte, error)

Get get cached value from LRU cache Params:

• key: cache key

Return:

• value: cache value
• ok : true if found, false if not

func (*LRUCache) Keys

func (c *LRUCache) Keys() []interface{}

Keys get keys of items in cache

func (*LRUCache) Len

func (c *LRUCache) Len() int

Len get number of items in cache

func (*LRUCache) Put

func (c *LRUCache) Put(key []byte, value []byte) error

Add add a key-value pair to LRU cache Params:

• key : cache key
• value: cache value

Return:

• evictOrNot: true if eviction occurs, false if not

type Pair

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

Pair <key, value>