mem

Documentation

Overview

Package mem implements an in-memory blob store.

Index

• type Store
  • func New() *Store
  • func (s *Store) AnchorMapRef(_ context.Context) (bs.Ref, error)
  • func (s *Store) Delete(_ context.Context, ref bs.Ref) error
  • func (s *Store) Get(_ context.Context, ref bs.Ref) (bs.Blob, error)
  • func (s *Store) ListRefs(ctx context.Context, start bs.Ref, f func(bs.Ref) error) error
  • func (s *Store) Put(_ context.Context, b bs.Blob) (bs.Ref, bool, error)
  • func (s *Store) UpdateAnchorMap(ctx context.Context, f anchor.UpdateFunc) error

Types

type Store

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

Store is a memory-based implementation of a blob store.

func New

func New() *Store

New produces a new Store.

func (*Store) AnchorMapRef

func (s *Store) AnchorMapRef(_ context.Context) (bs.Ref, error)

AnchorMapRef implements anchor.Getter.

func (*Store) Delete

func (s *Store) Delete(_ context.Context, ref bs.Ref) error

Delete implements bs.DeleterStore.

func (*Store) Get

func (s *Store) Get(_ context.Context, ref bs.Ref) (bs.Blob, error)

Get gets the blob with hash `ref`.

func (*Store) ListRefs

func (s *Store) ListRefs(ctx context.Context, start bs.Ref, f func(bs.Ref) error) error

ListRefs produces all blob refs in the store, in lexicographic order.

func (*Store) Put

func (s *Store) Put(_ context.Context, b bs.Blob) (bs.Ref, bool, error)

Put adds a blob to the store if it wasn't already present.

func (*Store) UpdateAnchorMap

func (s *Store) UpdateAnchorMap(ctx context.Context, f anchor.UpdateFunc) error

UpdateAnchorMap implements anchor.Store. It uses optimistic locking and can return anchor.ErrUpdateConflict.