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eth/downloader: fix a potential issue against future refactors

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Péter Szilágyi 2017-05-02 16:14:35 +03:00
parent 5884606ec3
commit 96c2ab22e0
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1 changed files with 4 additions and 0 deletions
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4
eth/downloader/downloader.go
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@ -1491,6 +1491,10 @@ func (d *Downloader) qosTuner() {
func (d *Downloader) qosReduceConfidence() {
// If we have a single peer, confidence is always 1
peers := uint64(d.peers.Len())
if peers == 0 {
// Ensure peer connectivity races don't catch us off guard
return
}
if peers == 1 {
atomic.StoreUint64(&d.rttConfidence, 1000000)
return