7 "github.com/anacrolix/missinggo/v2/bitmap"
9 "github.com/anacrolix/chansync"
10 request_strategy "github.com/anacrolix/torrent/request-strategy"
11 "github.com/anacrolix/torrent/types"
14 func (cl *Client) requester() {
16 update := func() chansync.Signaled {
20 return cl.updateRequests.Signaled()
23 case <-cl.closed.Done():
25 case <-time.After(100 * time.Millisecond):
28 case <-cl.closed.Done():
31 case <-time.After(time.Second):
36 func (cl *Client) tickleRequester() {
37 cl.updateRequests.Broadcast()
40 func (cl *Client) doRequests() {
41 ts := make([]request_strategy.Torrent, 0, len(cl.torrents))
42 for _, t := range cl.torrents {
43 rst := request_strategy.Torrent{
44 StableId: uintptr(unsafe.Pointer(t)),
47 rst.Capacity = t.storage.Capacity
49 for i := range t.pieces {
51 rst.Pieces = append(rst.Pieces, request_strategy.Piece{
52 Request: !t.ignorePieceForRequests(i),
53 Priority: p.purePriority(),
54 Partial: t.piecePartiallyDownloaded(i),
55 Availability: p.availability,
56 Length: int64(p.length()),
57 NumPendingChunks: int(t.pieceNumPendingChunks(i)),
58 IterPendingChunks: func(f func(types.ChunkSpec)) {
59 p.iterUndirtiedChunks(func(cs ChunkSpec) bool {
66 t.iterPeers(func(p *Peer) {
70 if p.piecesReceivedSinceLastRequestUpdate > p.maxPiecesReceivedBetweenRequestUpdates {
71 p.maxPiecesReceivedBetweenRequestUpdates = p.piecesReceivedSinceLastRequestUpdate
73 p.piecesReceivedSinceLastRequestUpdate = 0
74 rst.Peers = append(rst.Peers, request_strategy.Peer{
75 HasPiece: p.peerHasPiece,
76 MaxRequests: p.nominalMaxRequests(),
77 HasExistingRequest: func(r request_strategy.Request) bool {
78 _, ok := p.actualRequestState.Requests[r]
81 Choking: p.peerChoking,
82 PieceAllowedFast: func(i pieceIndex) bool {
83 return p.peerAllowedFast.Contains(bitmap.BitIndex(i))
85 DownloadRate: p.downloadRate(),
86 Age: time.Since(p.completedHandshake),
92 nextPeerStates := request_strategy.Run(request_strategy.Input{
94 MaxUnverifiedBytes: cl.config.MaxUnverifiedBytes,
96 for p, state := range nextPeerStates {
97 setPeerNextRequestState(p, state)
103 func (p *peerId) Uintptr() uintptr {
104 return uintptr(unsafe.Pointer(p))
107 func setPeerNextRequestState(_p request_strategy.PeerId, rp request_strategy.PeerNextRequestState) {
108 p := (*Peer)(_p.(*peerId))
109 p.nextRequestState = rp
110 p.onNextRequestStateChanged()
113 func (p *Peer) applyNextRequestState() bool {
114 next := p.nextRequestState
115 current := p.actualRequestState
116 if !p.setInterested(next.Interested) {
119 for req := range current.Requests {
120 if _, ok := next.Requests[req]; !ok {
126 for req := range next.Requests {
127 more, err := p.request(req)