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force sending of a retransmittable packet every 20 packets

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This commit is contained in:
Marten Seemann
2017-08-07 15:50:49 +07:00
parent 843764aea3
commit 79bb3a9bd3
6 changed files with 63 additions and 4 deletions
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9
ackhandler/sent_packet_handler.go
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@@ -40,6 +40,8 @@ type sentPacketHandler struct {
lastSentPacketNumber protocol.PacketNumber
skippedPackets []protocol.PacketNumber
numNonRetransmittablePackets int // number of non-retransmittable packets since the last retransmittable packet
LargestAcked protocol.PacketNumber
largestReceivedPacketWithAck protocol.PacketNumber
@@ -89,6 +91,10 @@ func (h *sentPacketHandler) largestInOrderAcked() protocol.PacketNumber {
return h.LargestAcked
}
func (h *sentPacketHandler) ShouldSendRetransmittablePacket() bool {
return h.numNonRetransmittablePackets >= protocol.MaxNonRetransmittablePackets
}
func (h *sentPacketHandler) SentPacket(packet *Packet) error {
if packet.PacketNumber <= h.lastSentPacketNumber {
return errPacketNumberNotIncreasing
@@ -116,6 +122,9 @@ func (h *sentPacketHandler) SentPacket(packet *Packet) error {
packet.SendTime = now
h.bytesInFlight += packet.Length
h.packetHistory.PushBack(*packet)
h.numNonRetransmittablePackets = 0
} else {
h.numNonRetransmittablePackets++
}
h.congestion.OnPacketSent(