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simplify pruning of old ACK ranges

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This commit is contained in:
Marten Seemann 2020-02-20 18:49:22 +07:00
parent f317a471bb
commit a5fc72047e
11 changed files with 94 additions and 50 deletions
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10
internal/ackhandler/received_packet_handler.go
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@ -32,6 +32,8 @@ const (
)
type receivedPacketHandler struct {
sentPackets sentPacketTracker
initialPackets *receivedPacketTracker
handshakePackets *receivedPacketTracker
appDataPackets *receivedPacketTracker
@ -42,11 +44,13 @@ type receivedPacketHandler struct {
var _ ReceivedPacketHandler = &receivedPacketHandler{}
func newReceivedPacketHandler(
sentPackets sentPacketTracker,
rttStats *congestion.RTTStats,
logger utils.Logger,
version protocol.VersionNumber,
) ReceivedPacketHandler {
return &receivedPacketHandler{
sentPackets: sentPackets,
initialPackets: newReceivedPacketTracker(rttStats, logger, version),
handshakePackets: newReceivedPacketTracker(rttStats, logger, version),
appDataPackets: newReceivedPacketTracker(rttStats, logger, version),
@ -74,6 +78,7 @@ func (h *receivedPacketHandler) ReceivedPacket(
if h.lowest1RTTPacket == protocol.InvalidPacketNumber || pn < h.lowest1RTTPacket {
h.lowest1RTTPacket = pn
}
h.appDataPackets.IgnoreBelow(h.sentPackets.GetLowestPacketNotConfirmedAcked())
h.appDataPackets.ReceivedPacket(pn, rcvTime, shouldInstigateAck)
default:
panic(fmt.Sprintf("received packet with unknown encryption level: %s", encLevel))
@ -81,11 +86,6 @@ func (h *receivedPacketHandler) ReceivedPacket(
return nil
}
// only to be used with 1-RTT packets
func (h *receivedPacketHandler) IgnoreBelow(pn protocol.PacketNumber) {
h.appDataPackets.IgnoreBelow(pn)
}
func (h *receivedPacketHandler) DropPackets(encLevel protocol.EncryptionLevel) {
switch encLevel {
case protocol.EncryptionInitial: