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early out if no entries in wantlist #539

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merged 1 commit into from
Jan 11, 2015
Merged

early out if no entries in wantlist #539

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8 changes: 7 additions & 1 deletion exchange/bitswap/bitswap.go
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Original file line number Diff line number Diff line change
Expand Up @@ -225,6 +225,12 @@ func (bs *bitswap) sendWantlistToPeers(ctx context.Context, peers <-chan peer.ID
}

func (bs *bitswap) sendWantlistToProviders(ctx context.Context) {
entries := bs.wantlist.Entries()
if len(entries) == 0 {
log.Debug("No entries in wantlist, skipping send routine.")
return
}

log := log.Prefix("bitswap(%s).sendWantlistToProviders ", bs.self)
log.Debugf("begin")
defer log.Debugf("end")
Expand All @@ -237,7 +243,7 @@ func (bs *bitswap) sendWantlistToProviders(ctx context.Context) {

// Get providers for all entries in wantlist (could take a while)
wg := sync.WaitGroup{}
for _, e := range bs.wantlist.Entries() {
for _, e := range entries {
wg.Add(1)
go func(k u.Key) {
defer wg.Done()
Expand Down