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change ReceivedPacketHandler such that it can generate ACKs for packet number 0

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This commit is contained in:
Marten Seemann
2017-12-04 11:42:16 +07:00
parent a79e9ee35e
commit f90029ef64
7 changed files with 27 additions and 29 deletions
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14
ackhandler/received_packet_handler.go
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@@ -12,7 +12,7 @@ var errInvalidPacketNumber = errors.New("ReceivedPacketHandler: Invalid packet n
type receivedPacketHandler struct {
largestObserved protocol.PacketNumber
lowerLimit protocol.PacketNumber
ignoreBelow protocol.PacketNumber
largestObservedReceivedTime time.Time
packetHistory *receivedPacketHistory
@@ -47,7 +47,7 @@ func (h *receivedPacketHandler) ReceivedPacket(packetNumber protocol.PacketNumbe
h.largestObservedReceivedTime = time.Now()
}
if packetNumber <= h.lowerLimit {
if packetNumber < h.ignoreBelow {
return nil
}
@@ -58,11 +58,11 @@ func (h *receivedPacketHandler) ReceivedPacket(packetNumber protocol.PacketNumbe
return nil
}
// SetLowerLimit sets a lower limit for acking packets.
// Packets with packet numbers smaller or equal than p will not be acked.
func (h *receivedPacketHandler) SetLowerLimit(p protocol.PacketNumber) {
h.lowerLimit = p
h.packetHistory.DeleteUpTo(p)
// IgnoreBelow sets a lower limit for acking packets.
// Packets with packet numbers smaller than p will not be acked.
func (h *receivedPacketHandler) IgnoreBelow(p protocol.PacketNumber) {
h.ignoreBelow = p
h.packetHistory.DeleteBelow(p)
}
func (h *receivedPacketHandler) maybeQueueAck(packetNumber protocol.PacketNumber, shouldInstigateAck bool) {