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simplify removing of acked packets from packet history

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This commit is contained in:
Marten Seemann
2020-04-01 13:37:17 +07:00
parent b9ab1d172d
commit 37f1a3fdda
1 changed files with 23 additions and 24 deletions
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47
internal/ackhandler/sent_packet_handler.go
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@@ -271,19 +271,13 @@ func (h *sentPacketHandler) ReceivedAck(ack *wire.AckFrame, encLevel protocol.En
}
}
priorInFlight := h.bytesInFlight
ackedPackets, err := h.determineNewlyAckedPackets(ack, encLevel)
if err != nil || len(ackedPackets) == 0 {
return err
}
priorInFlight := h.bytesInFlight
for _, p := range ackedPackets {
if p.LargestAcked != protocol.InvalidPacketNumber && encLevel == protocol.Encryption1RTT {
h.lowestNotConfirmedAcked = utils.MaxPacketNumber(h.lowestNotConfirmedAcked, p.LargestAcked+1)
}
if err := h.onPacketAcked(p); err != nil {
return err
}
if p.includedInBytesInFlight {
h.congestion.OnPacketAcked(p.PacketNumber, p.Length, priorInFlight, rcvTime)
}
@@ -352,6 +346,28 @@ func (h *sentPacketHandler) determineNewlyAckedPackets(
}
h.logger.Debugf("\tnewly acked packets (%d): %#x", len(pns), pns)
}
for _, p := range ackedPackets {
if packet := pnSpace.history.GetPacket(p.PacketNumber); packet == nil {
continue
}
if p.LargestAcked != protocol.InvalidPacketNumber && encLevel == protocol.Encryption1RTT {
h.lowestNotConfirmedAcked = utils.MaxPacketNumber(h.lowestNotConfirmedAcked, p.LargestAcked+1)
}
for _, f := range p.Frames {
if f.OnAcked != nil {
f.OnAcked(f.Frame)
}
}
if p.includedInBytesInFlight {
h.bytesInFlight -= p.Length
}
if err := pnSpace.history.Remove(p.PacketNumber); err != nil {
return nil, err
}
}
return ackedPackets, err
}
@@ -563,23 +579,6 @@ func (h *sentPacketHandler) GetLossDetectionTimeout() time.Time {
return h.alarm
}
func (h *sentPacketHandler) onPacketAcked(p *Packet) error {
pnSpace := h.getPacketNumberSpace(p.EncryptionLevel)
if packet := pnSpace.history.GetPacket(p.PacketNumber); packet == nil {
return nil
}
for _, f := range p.Frames {
if f.OnAcked != nil {
f.OnAcked(f.Frame)
}
}
if p.includedInBytesInFlight {
h.bytesInFlight -= p.Length
}
return pnSpace.history.Remove(p.PacketNumber)
}
func (h *sentPacketHandler) PeekPacketNumber(encLevel protocol.EncryptionLevel) (protocol.PacketNumber, protocol.PacketNumberLen) {
pnSpace := h.getPacketNumberSpace(encLevel)