change preload

src/server/torr/apihelper.go

@@ -6,11 +6,10 @@ import (
 	"sort"
 	"time"
 
-	"server/log"
-	sets "server/settings"
-
 	"github.com/anacrolix/torrent"
 	"github.com/anacrolix/torrent/metainfo"
+	"server/log"
+	sets "server/settings"
 )
 
 var (
@@ -128,3 +127,16 @@ func Shutdown() {
 func WriteStatus(w io.Writer) {
 	bts.client.WriteStatus(w)
 }
+
+func Preload(torr *Torrent, index int) {
+	if !sets.BTsets.PreloadBuffer {
+		size := int64(20 * 1024 * 1024)
+		if size > sets.BTsets.CacheSize {
+			size = sets.BTsets.CacheSize
+		}
+		torr.Preload(index, size)
+	} else {
+		size := int64(float32(sets.BTsets.ReaderReadAHead) / 100.0 * float32(sets.BTsets.CacheSize))
+		torr.Preload(index, size)
+	}
+}

src/server/torr/storage/torrstor/readerloader.go

@@ -20,7 +20,7 @@ func (r *Reader) getPieceNum(offset int64) int {
 }
 
 func (r *Reader) getReaderRange() (int64, int64) {
-	prc := int64(settings.BTsets.ReaderPreload)
+	prc := int64(settings.BTsets.ReaderReadAHead)
 	beginOffset := r.offset - r.cache.capacity*(100-prc)/100
 	endOffset := r.offset + r.cache.capacity*prc/100