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Don't allocate pieces map unless necessary when filling responsive requests

This commit is contained in:
Matt Joiner 2014-11-19 20:01:32 -06:00
parent 8518b54cde
commit a893e685b0
1 changed files with 4 additions and 1 deletions
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5
download_strategies.go
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@ -176,6 +176,9 @@ type requestFiller struct {
// Wrapper around connection.request that tracks request heat.
func (me *requestFiller) request(req request) bool {
if me.pieces == nil {
me.pieces = make(map[int]struct{})
}
me.pieces[int(req.Index)] = struct{}{}
if me.c.RequestPending(req) {
return true
@ -330,7 +333,7 @@ func (me *requestFiller) readahead() bool {
}
func (me *responsiveDownloadStrategy) FillRequests(t *torrent, c *connection) (pieces []int) {
rf := requestFiller{c, t, me, make(map[int]struct{}, t.NumPieces())}
rf := requestFiller{c: c, t: t, s: me}
rf.Run()
for p := range rf.pieces {
pieces = append(pieces, p)