datastores

package

v0.0.0-...-32b09db Latest Latest Go to latest Published: Aug 28, 2022 License: EPL-2.0 Imports: 15 Imported by: 0

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Repository

github.com/zzzhr1990/go-ipfs-util

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Open Source Insights

Documentation ¶

Index ¶

Constants
func BlockCount(fsize int64) int
func CalSha1(b []byte, r io.Reader) ([]byte, error)
func CalcFileGcid(filename string) (string, error)
func DecodeBlock(ctx context.Context, b blocks.Block) (int64, ipld.Node, error)
func GetEtag(filename string) (etag string, err error)
type EmptyBlockstore
- func NewEmptyBlockstore(fileSize int64, ctx context.Context) *EmptyBlockstore

Constants ¶

View Source

const (
	BLOCK_BITS = 22 // Indicate that the blocksize is 4M
	BLOCK_SIZE = 1 << BLOCK_BITS
)

Variables ¶

This section is empty.

Functions ¶

func BlockCount ¶

func BlockCount(fsize int64) int

func CalSha1 ¶

func CalSha1(b []byte, r io.Reader) ([]byte, error)

func CalcFileGcid ¶

func CalcFileGcid(filename string) (string, error)

func DecodeBlock ¶

func DecodeBlock(ctx context.Context, b blocks.Block) (int64, ipld.Node, error)

func GetEtag ¶

func GetEtag(filename string) (etag string, err error)

Types ¶

type EmptyBlockstore ¶

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

func NewEmptyBlockstore ¶

func NewEmptyBlockstore(fileSize int64, ctx context.Context) *EmptyBlockstore

func (*EmptyBlockstore) AllKeysChan ¶

func (s *EmptyBlockstore) AllKeysChan(ctx context.Context) (<-chan cid.Cid, error)

AllKeysChan returns a channel from which the CIDs in the Blockstore can be read. It should respect the given context, closing the channel if it becomes Done.

func (*EmptyBlockstore) DeleteBlock ¶

func (s *EmptyBlockstore) DeleteBlock(context.Context, cid.Cid) error

func (*EmptyBlockstore) FileSHA1 ¶

func (s *EmptyBlockstore) FileSHA1() []byte

func (*EmptyBlockstore) Get ¶

func (s *EmptyBlockstore) Get(context.Context, cid.Cid) (blocks.Block, error)

func (*EmptyBlockstore) GetBlockCount ¶

func (s *EmptyBlockstore) GetBlockCount() int64

func (*EmptyBlockstore) GetFileSize ¶

func (s *EmptyBlockstore) GetFileSize() int64

func (*EmptyBlockstore) GetSize ¶

func (s *EmptyBlockstore) GetSize(context.Context, cid.Cid) (int, error)

GetSize returns the CIDs mapped BlockSize

func (*EmptyBlockstore) Has ¶

func (s *EmptyBlockstore) Has(context.Context, cid.Cid) (bool, error)

func (*EmptyBlockstore) HashOnRead ¶

func (s *EmptyBlockstore) HashOnRead(enabled bool)

HashOnRead specifies if every read block should be rehashed to make sure it matches its CID.

func (*EmptyBlockstore) HeadSHA1 ¶

func (s *EmptyBlockstore) HeadSHA1() []byte

func (*EmptyBlockstore) NodeMap ¶

func (s *EmptyBlockstore) NodeMap() map[string]blocks.Block

func (*EmptyBlockstore) Put ¶

func (s *EmptyBlockstore) Put(ctx context.Context, b blocks.Block) error

Put puts a given block to the underlying datastore

func (*EmptyBlockstore) PutMany ¶

func (s *EmptyBlockstore) PutMany(ctx context.Context, blocks []blocks.Block) error

PutMany puts a slice of blocks at the same time using batching capabilities of the underlying datastore whenever possible.

func (*EmptyBlockstore) Reslove ¶

func (s *EmptyBlockstore) Reslove(cidString string, intptr *int64, currentBlockIDPtr *int) error

func (*EmptyBlockstore) SumWcsEtag ¶

func (s *EmptyBlockstore) SumWcsEtag() string

func (*EmptyBlockstore) SumXL ¶

func (s *EmptyBlockstore) SumXL() []byte

Source Files ¶

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