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Add comments to applyRequestState continue clauses #3

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Add comments to applyRequestState continue clauses #3

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7 changes: 7 additions & 0 deletions requesting.go
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Original file line number Diff line number Diff line change
Expand Up @@ -312,12 +312,19 @@ func (p *Peer) applyRequestState(next desiredRequestState) {
panic("changed")
}

// don't add requests on receipt of a reject - because this causes request back
// to potentially permanently unresponsive peers - which just adds network noise. If
// the peer can handle more requests it will send an "unchoked" message - which
// will cause it to get added back to the request queue
if p.needRequestUpdate == "Peer.remoteRejectedRequest" {
continue
}

existing := t.requestingPeer(req)
if existing != nil && existing != p {
// don't steal on cancel - because this is triggered by t.cancelRequest below
// which means that the cancelled can immediately try to steal back a request
// it has lost which can lead to circular cancel/add processing
if p.needRequestUpdate == "Peer.cancel" {
continue
}
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