Drop support for go 1.20

[btrtrc.git] / requesting.go

diff --git a/requesting.go b/requesting.go
index 7fbfccfbba1776a69c59d1d8a9123cf8f7bb2ccf..8b9db971b537630e65dd41ca9618f8a708f6a698 100644 (file)
--- a/requesting.go
+++ b/requesting.go
@@ -9,9 +9,9 @@ import (
        "time"
        "unsafe"
 
+       "github.com/anacrolix/generics/heap"
        "github.com/anacrolix/log"
        "github.com/anacrolix/multiless"
-       "github.com/lispad/go-generics-tools/binheap"
 
        requestStrategy "github.com/anacrolix/torrent/request-strategy"
        typedRoaring "github.com/anacrolix/torrent/typed-roaring"
@@ -80,14 +80,6 @@ type desiredPeerRequests struct {
        pieceStates    []requestStrategy.PieceRequestOrderState
 }
 
-func (p *desiredPeerRequests) Len() int {
-       return len(p.requestIndexes)
-}
-
-func (p *desiredPeerRequests) Less(i, j int) bool {
-       return p.lessByValue(p.requestIndexes[i], p.requestIndexes[j])
-}
-
 func (p *desiredPeerRequests) lessByValue(leftRequest, rightRequest RequestIndex) bool {
        t := p.peer.t
        leftPieceIndex := t.pieceIndexOfRequestIndex(leftRequest)
@@ -168,21 +160,6 @@ func (p *desiredPeerRequests) lessByValue(leftRequest, rightRequest RequestIndex
        return ml.Less()
 }
 
-func (p *desiredPeerRequests) Swap(i, j int) {
-       p.requestIndexes[i], p.requestIndexes[j] = p.requestIndexes[j], p.requestIndexes[i]
-}
-
-func (p *desiredPeerRequests) Push(x interface{}) {
-       p.requestIndexes = append(p.requestIndexes, x.(RequestIndex))
-}
-
-func (p *desiredPeerRequests) Pop() interface{} {
-       last := len(p.requestIndexes) - 1
-       x := p.requestIndexes[last]
-       p.requestIndexes = p.requestIndexes[:last]
-       return x
-}
-
 type desiredRequestState struct {
        Requests   desiredPeerRequests
        Interested bool
@@ -272,10 +249,12 @@ func (p *Peer) maybeUpdateActualRequestState() {
 func (p *Peer) applyRequestState(next desiredRequestState) {
        current := &p.requestState
        if !p.setInterested(next.Interested) {
-               panic("insufficient write buffer")
+               return
        }
        more := true
-       requestHeap := binheap.FromSlice(next.Requests.requestIndexes, next.Requests.lessByValue)
+       requestHeap := heap.InterfaceForSlice(&next.Requests.requestIndexes, next.Requests.lessByValue)
+       heap.Init(requestHeap)
+
        t := p.t
        originalRequestCount := current.Requests.GetCardinality()
        // We're either here on a timer, or because we ran out of requests. Both are valid reasons to
@@ -286,7 +265,7 @@ func (p *Peer) applyRequestState(next desiredRequestState) {
                        originalRequestCount, p.needRequestUpdate))
        }
        for requestHeap.Len() != 0 && maxRequests(current.Requests.GetCardinality()+current.Cancelled.GetCardinality()) < p.nominalMaxRequests() {
-               req := requestHeap.Pop()
+               req := heap.Pop(requestHeap)
                existing := t.requestingPeer(req)
                if existing != nil && existing != p {
                        // Don't steal from the poor.