rename AckHandler package to AckHandlerLegacy

ackhandlerlegacy/interfaces.go

@@ -0,0 +1,41 @@
+package ackhandlerlegacy
+
+import (
+	"time"
+
+	"github.com/lucas-clemente/quic-go/frames"
+	"github.com/lucas-clemente/quic-go/protocol"
+)
+
+// SentPacketHandler handles ACKs received for outgoing packets
+type SentPacketHandler interface {
+	SentPacket(packet *Packet) error
+	ReceivedAck(ackFrame *frames.AckFrameLegacy) error
+
+	ProbablyHasPacketForRetransmission() bool
+	DequeuePacketForRetransmission() (packet *Packet)
+
+	BytesInFlight() protocol.ByteCount
+	GetLargestObserved() protocol.PacketNumber
+
+	CongestionAllowsSending() bool
+	CheckForError() error
+
+	TimeOfFirstRTO() time.Time
+}
+
+// ReceivedPacketHandler handles ACKs needed to send for incoming packets
+type ReceivedPacketHandler interface {
+	ReceivedPacket(packetNumber protocol.PacketNumber, entropyBit bool) error
+	ReceivedStopWaiting(*frames.StopWaitingFrame) error
+
+	GetAckFrame(dequeue bool) (*frames.AckFrameLegacy, error)
+}
+
+// StopWaitingManager manages StopWaitings for sent packets
+type StopWaitingManager interface {
+	RegisterPacketForRetransmission(packet *Packet)
+	GetStopWaitingFrame() *frames.StopWaitingFrame
+	SentStopWaitingWithPacket(packetNumber protocol.PacketNumber)
+	ReceivedAckForPacketNumber(packetNumber protocol.PacketNumber)
+}