util

Documentation

Index

• Constants
• func BuildFileNode(item Finfo, bufDs ipld.DAGService, cidBuilder cid.Builder) (node ipld.Node, err error)
• func CalculateCommpHashHash(reader io.Reader, PadPieceSize uint64) (commCid cid.Cid, pieceSize uint64, err error)
• type CarHeader
• type FSBuilder
  • func NewFSBuilder(root *dag.ProtoNode, ds ipld.DAGService) *FSBuilder
  • func (b *FSBuilder) Build() (rootn *FsNode, err error)
• type Finfo
• type FsNode
  • func GenerateCar(ctx context.Context, fileList []Finfo, parentPath string, output io.Writer) (ipldDag *FsNode, cid string, err error)

Constants

const BufSize = (4 << 20) / 128 * 127

const UnixfsChunkSize uint64 = 1 << 20

const UnixfsLinksPerLevel = 1 << 10

Functions

func BuildFileNode

func BuildFileNode(item Finfo, bufDs ipld.DAGService, cidBuilder cid.Builder) (node ipld.Node, err error)

func CalculateCommpHashHash

func CalculateCommpHashHash(reader io.Reader, PadPieceSize uint64) (commCid cid.Cid, pieceSize uint64, err error)

Types

type CarHeader

type CarHeader struct {
	Roots   []cid.Cid
	Version uint64
}

type FSBuilder

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

func NewFSBuilder

func NewFSBuilder(root *dag.ProtoNode, ds ipld.DAGService) *FSBuilder

func (*FSBuilder) Build

func (b *FSBuilder) Build() (rootn *FsNode, err error)

type Finfo

type Finfo struct {
	Path  string
	Size  int64
	Start int64
	End   int64
}

type FsNode

type FsNode struct {
	Name string
	Hash string
	Size uint64
	Link []FsNode
}

func GenerateCar

func GenerateCar(ctx context.Context, fileList []Finfo, parentPath string, output io.Writer) (ipldDag *FsNode, cid string, err error)