filesection

package
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Published: Feb 27, 2019 License: MIT Imports: 1 Imported by: 0

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Functions

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Types

type FileSection

type FileSection struct {
	File   ReadWriterAt
	Offset int64
	Length int64
}

FileSection of a file.

type Piece

type Piece []FileSection

Piece is contiguous sections of files. When piece hashes in torrent file is being calculated all files are concatenated and splitted into pieces in length specified in the torrent file.

func (Piece) ReadAt

func (p Piece) ReadAt(b []byte, off int64) (int, error)

ReadAt implements io.ReaderAt interface. It reads bytes from s at given offset into p. Used when uploading blocks of a piece.

func (Piece) Write

func (p Piece) Write(b []byte) (n int, err error)

Write implements io.Writer interface. It writes the bytes in p into files in s. Used when writing a downloaded piece (all blocks) after hash check is done. Calling write does not change the current position in s, so len(p) must be equal to total length of the all files in s in order to issue a full write.

type ReadWriterAt

type ReadWriterAt interface {
	io.ReaderAt
	io.WriterAt
}

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