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rename AckHandler package to AckHandlerLegacy

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This commit is contained in:
Marten Seemann
2016-06-18 22:32:51 +07:00
parent 288cb9e143
commit eb03ed5334
16 changed files with 42 additions and 42 deletions
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58
ackhandler/stop_waiting_manager.go
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@@ -1,58 +0,0 @@
package ackhandler
import (
"github.com/lucas-clemente/quic-go/frames"
"github.com/lucas-clemente/quic-go/protocol"
)
// StopWaitingManager manages StopWaitingFrames
type stopWaitingManager struct {
// sentStopWaitings map[protocol.PacketNumber]protocol.PacketNumber // map[LeastUnacked]stopWaitingSentWithPacketNumber
lastNewStopWaitingFirstSentWithPacketNumber protocol.PacketNumber
maxRetransmittedPacketNumber protocol.PacketNumber
currentStopWaitingFrame *frames.StopWaitingFrame
currentStopWaitingFrameSent bool
}
// NewStopWaitingManager creates a new StopWaitingManager
func NewStopWaitingManager() StopWaitingManager {
return &stopWaitingManager{
currentStopWaitingFrame: nil,
}
}
// RegisterPacketForRetransmission prepares the StopWaitingFrame, if necessary
func (h *stopWaitingManager) RegisterPacketForRetransmission(packet *Packet) {
// out-of-order retransmission. A StopWaitingFrame with a higher LeastUnacked was already queued (or sent in the past), no need to send another one again
if packet.PacketNumber < h.maxRetransmittedPacketNumber {
return
}
if h.currentStopWaitingFrame == nil || h.currentStopWaitingFrame.LeastUnacked <= packet.PacketNumber { // <= because for StopWaitingFrames LeastUnacked = packet.PacketNumber + 1
h.currentStopWaitingFrame = &frames.StopWaitingFrame{
LeastUnacked: packet.PacketNumber + 1,
Entropy: byte(packet.Entropy),
}
h.maxRetransmittedPacketNumber = packet.PacketNumber
h.currentStopWaitingFrameSent = false
}
}
// GetStopWaitingFrame gets the StopWaitingFrame that needs to be sent. It returns nil if no StopWaitingFrame needs to be sent
func (h *stopWaitingManager) GetStopWaitingFrame() *frames.StopWaitingFrame {
return h.currentStopWaitingFrame
}
// SentStopWaitingWithPacket must be called after sending out a StopWaitingFrame with a packet
func (h *stopWaitingManager) SentStopWaitingWithPacket(packetNumber protocol.PacketNumber) {
if !h.currentStopWaitingFrameSent {
h.lastNewStopWaitingFirstSentWithPacketNumber = packetNumber
}
h.currentStopWaitingFrameSent = true
}
// ReceivedAckForPacketNumber should be called after receiving an ACK
func (h *stopWaitingManager) ReceivedAckForPacketNumber(packetNumber protocol.PacketNumber) {
if packetNumber >= h.lastNewStopWaitingFirstSentWithPacketNumber {
h.currentStopWaitingFrame = nil
}
}