55 lines
1.2 KiB
Go
55 lines
1.2 KiB
Go
package storage
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import (
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"io"
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"log"
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"os"
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"github.com/anacrolix/torrent/metainfo"
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)
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type filePieceImpl struct {
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*fileTorrentImpl
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p metainfo.Piece
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io.WriterAt
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io.ReaderAt
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}
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var _ PieceImpl = (*filePieceImpl)(nil)
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func (me *filePieceImpl) pieceKey() metainfo.PieceKey {
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return metainfo.PieceKey{me.infoHash, me.p.Index()}
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}
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func (fs *filePieceImpl) Completion() Completion {
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c, err := fs.completion.Get(fs.pieceKey())
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if err != nil {
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log.Printf("error getting piece completion: %s", err)
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c.Ok = false
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return c
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}
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if c.Complete {
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// If it's allegedly complete, check that its constituent files have the necessary length.
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for _, fi := range extentCompleteRequiredLengths(fs.p.Info, fs.p.Offset(), fs.p.Length()) {
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s, err := os.Stat(fs.files[fi.fileIndex].path)
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if err != nil || s.Size() < fi.length {
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c.Complete = false
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break
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}
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}
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}
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if !c.Complete {
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// The completion was wrong, fix it.
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fs.completion.Set(fs.pieceKey(), false)
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}
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return c
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}
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func (fs *filePieceImpl) MarkComplete() error {
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return fs.completion.Set(fs.pieceKey(), true)
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}
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func (fs *filePieceImpl) MarkNotComplete() error {
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return fs.completion.Set(fs.pieceKey(), false)
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}
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