blockrecorder

package

v0.0.0-...-75360cb Latest Latest Go to latest Published: Jan 11, 2023 License: Apache-2.0, MIT Imports: 9 Imported by: 0

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Repository

github.com/beatlec/filecoin-project-go-fil-markets

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Documentation ¶

Overview ¶

Package blockrecorder provides utilits to record locations of CIDs to a temporary metadata file, since writing a CAR happens BEFORE we actually hand off for sealing. The metadata file is later used to populate the PieceStore

Index ¶

func RecordEachBlockTo(out io.Writer) car.OnNewCarBlockFunc
type PieceBlockMetadata
- func ReadBlockMetadata(input io.Reader) ([]PieceBlockMetadata, error)
- func (t *PieceBlockMetadata) MarshalCBOR(w io.Writer) error
- func (t *PieceBlockMetadata) UnmarshalCBOR(r io.Reader) (err error)

Constants ¶

This section is empty.

Variables ¶

This section is empty.

Functions ¶

func RecordEachBlockTo ¶

func RecordEachBlockTo(out io.Writer) car.OnNewCarBlockFunc

RecordEachBlockTo returns a OnNewCarBlockFunc that records the exact location of a given block's data in a CAR file, and writes that data to the given writer

Types ¶

type PieceBlockMetadata ¶

type PieceBlockMetadata struct {
	CID    cid.Cid
	Offset uint64
	Size   uint64
}

PieceBlockMetadata is a record of where a given CID lives in a piece, in terms of its offset and size

func ReadBlockMetadata ¶

func ReadBlockMetadata(input io.Reader) ([]PieceBlockMetadata, error)

ReadBlockMetadata reads previously recorded block metadata

func (*PieceBlockMetadata) MarshalCBOR ¶

func (t *PieceBlockMetadata) MarshalCBOR(w io.Writer) error

func (*PieceBlockMetadata) UnmarshalCBOR ¶

func (t *PieceBlockMetadata) UnmarshalCBOR(r io.Reader) (err error)

Source Files ¶

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