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Always send retransmissions, irrespective of congestion state

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This should probably only apply to RTOs, but we currently don't have a signal to distinguish them in the queue.
This commit is contained in:
Lucas Clemente 2017-06-06 11:18:10 +02:00
parent 5321723ef1
commit e44298a9cc
2 changed files with 13 additions and 1 deletions
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6
ackhandler/sent_packet_handler.go
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@ -333,7 +333,11 @@ func (h *sentPacketHandler) SendingAllowed() bool {
h.bytesInFlight,
h.congestion.GetCongestionWindow())
}
return !(congestionLimited || maxTrackedLimited)
// Workaround for #555:
// Always allow sending of retransmissions. This should probably be limited
// to RTOs, but we currently don't have a nice way of distinguishing them.
haveRetransmissions := len(h.retransmissionQueue) > 0
return !maxTrackedLimited && (!congestionLimited || haveRetransmissions)
}
func (h *sentPacketHandler) retransmitOldestTwoPackets() {