58 lines
1.1 KiB
Go
58 lines
1.1 KiB
Go
package storage
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import (
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"encoding/binary"
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"path/filepath"
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"time"
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"github.com/anacrolix/missinggo/expect"
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"github.com/boltdb/bolt"
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"github.com/anacrolix/torrent/metainfo"
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)
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const (
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// Chosen to match the usual chunk size in a torrent client. This way,
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// most chunk writes are to exactly one full item in bolt DB.
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chunkSize = 1 << 14
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)
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type boltDBClient struct {
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db *bolt.DB
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}
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type boltDBTorrent struct {
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cl *boltDBClient
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ih metainfo.Hash
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}
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func NewBoltDB(filePath string) ClientImpl {
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db, err := bolt.Open(filepath.Join(filePath, "bolt.db"), 0600, &bolt.Options{
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Timeout: time.Second,
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})
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expect.Nil(err)
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db.NoSync = true
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return &boltDBClient{db}
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}
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func (me *boltDBClient) Close() error {
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return me.db.Close()
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}
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func (me *boltDBClient) OpenTorrent(info *metainfo.Info, infoHash metainfo.Hash) (TorrentImpl, error) {
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return &boltDBTorrent{me, infoHash}, nil
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}
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func (me *boltDBTorrent) Piece(p metainfo.Piece) PieceImpl {
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ret := &boltDBPiece{
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p: p,
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db: me.cl.db,
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ih: me.ih,
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}
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copy(ret.key[:], me.ih[:])
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binary.BigEndian.PutUint32(ret.key[20:], uint32(p.Index()))
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return ret
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}
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func (boltDBTorrent) Close() error { return nil }
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