memorydb

Documentation

Index

• func NewlruDB(size uint32) (*lruDB, error)
• type DB
  • func New() *DB
  • func (s *DB) Close() error
  • func (s *DB) Destroy() error
  • func (s *DB) DestroyClosed() error
  • func (s *DB) Get(key []byte) ([]byte, error)
  • func (s *DB) Has(key []byte) error
  • func (s *DB) Init() error
  • func (s *DB) IsInterfaceNil() bool
  • func (s *DB) Put(key, val []byte) error
  • func (s *DB) RangeKeys(handler func(key []byte, value []byte) bool)
  • func (s *DB) Remove(key []byte) error

Functions

func NewlruDB

func NewlruDB(size uint32) (*lruDB, error)

NewlruDB creates a lruDB according to size

Types

type DB

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

DB represents the memory database storage. It holds a map of key value pairs and a mutex to handle concurrent accesses to the map

func New

func New() *DB

New creates a new memorydb object

func (*DB) Close

func (s *DB) Close() error

Close closes the files/resources associated to the storage medium

func (*DB) Destroy

func (s *DB) Destroy() error

Destroy removes the storage medium stored data

func (*DB) DestroyClosed

func (s *DB) DestroyClosed() error

DestroyClosed removes the storage medium stored data

func (*DB) Get

func (s *DB) Get(key []byte) ([]byte, error)

Get gets the value associated to the key, or reports an error

func (*DB) Has

func (s *DB) Has(key []byte) error

Has returns true if the given key is present in the persistence medium, false otherwise

func (*DB) Init

func (s *DB) Init() error

Init initializes the storage medium and prepares it for usage

func (*DB) IsInterfaceNil

func (s *DB) IsInterfaceNil() bool

IsInterfaceNil returns true if there is no value under the interface

func (*DB) Put

func (s *DB) Put(key, val []byte) error

Put adds the value to the (key, val) storage medium

func (*DB) RangeKeys

func (s *DB) RangeKeys(handler func(key []byte, value []byte) bool)

RangeKeys will iterate over all contained (key, value) pairs calling the provided handler

func (*DB) Remove

func (s *DB) Remove(key []byte) error

Remove removes the data associated to the given key