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ignore the delay field for ACKs sent in Initial and Handshake packets

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This commit is contained in:
Marten Seemann 2019-05-08 14:15:42 +09:00
parent 6c27967c8a
commit f981339bc0
2 changed files with 21 additions and 3 deletions
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7
internal/ackhandler/sent_packet_handler.go
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@ -205,7 +205,12 @@ func (h *sentPacketHandler) ReceivedAck(ackFrame *wire.AckFrame, withPacketNumbe
// maybe update the RTT
if p := pnSpace.history.GetPacket(ackFrame.LargestAcked()); p != nil {
h.rttStats.UpdateRTT(rcvTime.Sub(p.SendTime), ackFrame.DelayTime, rcvTime)
// don't use the ack delay for Initial and Handshake packets
var ackDelay time.Duration
if encLevel == protocol.Encryption1RTT {
ackDelay = ackFrame.DelayTime
}
h.rttStats.UpdateRTT(rcvTime.Sub(p.SendTime), ackDelay, rcvTime)
if h.logger.Debug() {
h.logger.Debugf("\tupdated RTT: %s (σ: %s)", h.rttStats.SmoothedRTT(), h.rttStats.MeanDeviation())
}