33 lines
549 B
Go
33 lines
549 B
Go
package metainfo
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import (
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"github.com/anacrolix/missinggo"
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)
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type Piece struct {
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Info *Info
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i pieceIndex
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}
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type pieceIndex = int
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func (p Piece) Length() int64 {
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if int(p.i) == p.Info.NumPieces()-1 {
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return p.Info.TotalLength() - int64(p.i)*p.Info.PieceLength
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}
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return p.Info.PieceLength
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}
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func (p Piece) Offset() int64 {
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return int64(p.i) * p.Info.PieceLength
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}
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func (p Piece) Hash() (ret Hash) {
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missinggo.CopyExact(&ret, p.Info.Pieces[p.i*HashSize:(p.i+1)*HashSize])
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return
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}
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func (p Piece) Index() pieceIndex {
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return p.i
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}
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