random

package

v0.0.0-...-ebe581b Latest Latest Go to latest Published: Mar 22, 2024 License: Apache-2.0 Imports: 17 Imported by: 0

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Repository

github.com/PaddlePaddle/PaddleDTX

Documentation ¶

Index ¶

type RandomCopier
- func New(privkey ecdsa.PrivateKey) *RandomCopier

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

This section is empty.

Types ¶

type RandomCopier ¶

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

RandomCopier selects Storage Nodes randomly from healthy candidates.

You can call Push() to push slices onto Storage Node, and Pull() to pull slices from Storage Node.
If you want more Storage Nodes, you can call ReplicaExpansion(),
and it pulls slices from original nodes and decrypts and re-encrypts those slices,
then push them onto new Storage Nodes.

func New ¶

func New(privkey ecdsa.PrivateKey) *RandomCopier

func (*RandomCopier) Pull ¶

func (m *RandomCopier) Pull(ctx context.Context, id, storIndex, fileID string, node *blockchain.Node) (io.ReadCloser, error)

Pull pulls slice from storage no

func (*RandomCopier) Push ¶

func (m *RandomCopier) Push(ctx context.Context, id, sourceID string, r io.Reader, node *blockchain.Node) (string, error)

Push pushes slices onto Storage Node returns storage index of slice

func (*RandomCopier) ReplicaExpansion ¶

func (m *RandomCopier) ReplicaExpansion(ctx context.Context, opt *copier.ReplicaExpOptions,
	enc common.CommonEncryptor, challengeAlgorithm, sourceID, fileID string) (
	nSlice []blockchain.PublicSliceMeta, eSlices []encryptor.EncryptedSlice, err error)

ReplicaExpansion slice performs Replica-Expand, that is to

pull slices from original nodes and decrypt and re-encrypt those slices,
then push them onto new Storage Nodes.

func (*RandomCopier) Select ¶

func (m *RandomCopier) Select(slice slicer.Slice, nodes blockchain.NodeHs, opt *copier.SelectOptions) (
	copier.LocatedSlice, error)

Select selects nodes for a slice randomly from healthy candidates

Source Files ¶

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