X-Git-Url: http://www.git.stargrave.org/?a=blobdiff_plain;f=misc.go;h=7d3007ecee74eb92f58eee434dfb9431a86f9098;hb=HEAD;hp=4a6e1debe3d21634ca2a6f5d40590d8132183a66;hpb=175b826e738c76d1a96e435bc5396e054ca5796a;p=btrtrc.git

diff --git a/misc.go b/misc.go
index 4a6e1deb..7d3007ec 100644
--- a/misc.go
+++ b/misc.go
@@ -4,12 +4,14 @@ import (
 	"errors"
 	"net"
 
+	"github.com/RoaringBitmap/roaring"
 	"github.com/anacrolix/missinggo/v2"
-	"github.com/anacrolix/torrent/types"
 	"golang.org/x/time/rate"
 
 	"github.com/anacrolix/torrent/metainfo"
 	pp "github.com/anacrolix/torrent/peer_protocol"
+	"github.com/anacrolix/torrent/types"
+	"github.com/anacrolix/torrent/types/infohash"
 )
 
 type (
@@ -43,7 +45,7 @@ func newRequestFromMessage(msg *pp.Message) Request {
 }
 
 // The size in bytes of a metadata extension piece.
-func metadataPieceSize(totalSize int, piece int) int {
+func metadataPieceSize(totalSize, piece int) int {
 	ret := totalSize - piece*(1<<14)
 	if ret > 1<<14 {
 		ret = 1 << 14
@@ -99,7 +101,7 @@ func validateInfo(info *metainfo.Info) error {
 	return nil
 }
 
-func chunkIndexSpec(index pp.Integer, pieceLength, chunkSize pp.Integer) ChunkSpec {
+func chunkIndexSpec(index, pieceLength, chunkSize pp.Integer) ChunkSpec {
 	ret := ChunkSpec{pp.Integer(index) * chunkSize, chunkSize}
 	if ret.Begin+ret.Length > pieceLength {
 		ret.Length = pieceLength - ret.Begin
@@ -113,7 +115,8 @@ func connLessTrusted(l, r *Peer) bool {
 
 func connIsIpv6(nc interface {
 	LocalAddr() net.Addr
-}) bool {
+},
+) bool {
 	ra := nc.LocalAddr()
 	rip := addrIpOrNil(ra)
 	return rip.To4() == nil && rip.To16() != nil
@@ -142,6 +145,16 @@ func max(as ...int64) int64 {
 	return ret
 }
 
+func maxInt(as ...int) int {
+	ret := as[0]
+	for _, a := range as[1:] {
+		if a > ret {
+			ret = a
+		}
+	}
+	return ret
+}
+
 func min(as ...int64) int64 {
 	ret := as[0]
 	for _, a := range as[1:] {
@@ -166,6 +179,16 @@ var unlimited = rate.NewLimiter(rate.Inf, 0)
 
 type (
 	pieceIndex = int
-	InfoHash   = metainfo.Hash
-	IpPort     = missinggo.IpPort
+	// Deprecated: Use infohash.T directly to avoid unnecessary imports.
+	InfoHash = infohash.T
+	IpPort   = missinggo.IpPort
 )
+
+func boolSliceToBitmap(slice []bool) (rb roaring.Bitmap) {
+	for i, b := range slice {
+		if b {
+			rb.AddInt(i)
+		}
+	}
+	return
+}