state

Documentation

Index

• type PersistentStorage
  • func NewPersistentStorage(path string) (*PersistentStorage, error)
  • func (p PersistentStorage) Bytes(key []byte) (res []byte, err error)
  • func (p PersistentStorage) Close() error
  • func (p PersistentStorage) SetBytes(key []byte, value []byte) error
  • func (p PersistentStorage) SetUInt32(key []byte, value uint32) error
  • func (p PersistentStorage) UInt32(key []byte) (n uint32, err error)

Types

type PersistentStorage

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

PersistentStorage is a wrapper around persistent K:V db that provides thread safe functions to set and fetch state variables of the Inner Ring and Storage applications.

func NewPersistentStorage

func NewPersistentStorage(path string) (*PersistentStorage, error)

NewPersistentStorage creates a new instance of a storage with 0o600 rights.

func (PersistentStorage) Bytes

func (p PersistentStorage) Bytes(key []byte) (res []byte, err error)

Bytes reads binary value by specified key. Returns nil if value is missing.

func (PersistentStorage) Close

func (p PersistentStorage) Close() error

Close closes persistent database instance.

func (PersistentStorage) SetBytes

func (p PersistentStorage) SetBytes(key []byte, value []byte) error

SetBytes saves binary value in the storage by specified key.

func (PersistentStorage) SetUInt32

func (p PersistentStorage) SetUInt32(key []byte, value uint32) error

SetUInt32 sets a uint32 value in the storage.

func (PersistentStorage) UInt32

func (p PersistentStorage) UInt32(key []byte) (n uint32, err error)

UInt32 returns a uint32 value from persistent storage. If the value does not exist, returns 0.