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()
22 // We can probably tune how often to heed this signal. TODO: Currently disabled to retain
23 // existing behaviour, while the signalling is worked out.
26 case <-cl.closed.LockedChan(cl.locker()):
29 case <-time.After(100 * time.Millisecond):
34 func (cl *Client) tickleRequester() {
35 cl.updateRequests.Broadcast()
38 func (cl *Client) doRequests() {
39 ts := make([]request_strategy.Torrent, 0, len(cl.torrents))
40 for _, t := range cl.torrents {
41 rst := request_strategy.Torrent{
42 StableId: uintptr(unsafe.Pointer(t)),
45 rst.Capacity = t.storage.Capacity
47 for i := range t.pieces {
49 rst.Pieces = append(rst.Pieces, request_strategy.Piece{
50 Request: !t.ignorePieceForRequests(i),
51 Priority: p.purePriority(),
52 Partial: t.piecePartiallyDownloaded(i),
53 Availability: p.availability,
54 Length: int64(p.length()),
55 NumPendingChunks: int(t.pieceNumPendingChunks(i)),
56 IterPendingChunks: func(f func(types.ChunkSpec)) {
57 p.iterUndirtiedChunks(func(cs ChunkSpec) bool {
64 t.iterPeers(func(p *Peer) {
68 if p.piecesReceivedSinceLastRequestUpdate > p.maxPiecesReceivedBetweenRequestUpdates {
69 p.maxPiecesReceivedBetweenRequestUpdates = p.piecesReceivedSinceLastRequestUpdate
71 p.piecesReceivedSinceLastRequestUpdate = 0
72 rst.Peers = append(rst.Peers, request_strategy.Peer{
73 HasPiece: p.peerHasPiece,
74 MaxRequests: p.nominalMaxRequests(),
75 HasExistingRequest: func(r request_strategy.Request) bool {
76 _, ok := p.actualRequestState.Requests[r]
79 Choking: p.peerChoking,
80 PieceAllowedFast: func(i pieceIndex) bool {
81 return p.peerAllowedFast.Contains(bitmap.BitIndex(i))
83 DownloadRate: p.downloadRate(),
84 Age: time.Since(p.completedHandshake),
90 nextPeerStates := request_strategy.Run(request_strategy.Input{
92 MaxUnverifiedBytes: cl.config.MaxUnverifiedBytes,
94 for p, state := range nextPeerStates {
95 setPeerNextRequestState(p, state)
101 func (p *peerId) Uintptr() uintptr {
102 return uintptr(unsafe.Pointer(p))
105 func setPeerNextRequestState(_p request_strategy.PeerId, rp request_strategy.PeerNextRequestState) {
106 p := (*Peer)(_p.(*peerId))
107 p.nextRequestState = rp
108 p.onNextRequestStateChanged()
111 func (p *Peer) applyNextRequestState() bool {
112 next := p.nextRequestState
113 current := p.actualRequestState
114 if !p.setInterested(next.Interested) {
117 for req := range current.Requests {
118 if _, ok := next.Requests[req]; !ok {
124 for req := range next.Requests {
125 more, err := p.request(req)