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2d64953e0e
There's no need for a check if more than protocol.MaxTrackedSentPackets packets were sent. There are certain situations where we allow (via SendingAllowed()) sending of more packets, and we shouldn't throw an error when the session then actually sends these packets.
48 lines
1.8 KiB
Go
48 lines
1.8 KiB
Go
package ackhandler
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import (
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"time"
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"github.com/lucas-clemente/quic-go/internal/protocol"
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"github.com/lucas-clemente/quic-go/internal/wire"
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)
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// SentPacketHandler handles ACKs received for outgoing packets
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type SentPacketHandler interface {
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// SentPacket may modify the packet
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SentPacket(packet *Packet)
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ReceivedAck(ackFrame *wire.AckFrame, withPacketNumber protocol.PacketNumber, encLevel protocol.EncryptionLevel, recvTime time.Time) error
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SetHandshakeComplete()
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// SendingAllowed says if a packet can be sent.
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// Sending packets might not be possible because:
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// * we're congestion limited
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// * we're tracking the maximum number of sent packets
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SendingAllowed() bool
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// TimeUntilSend is the time when the next packet should be sent.
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// It is used for pacing packets.
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TimeUntilSend() time.Time
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// ShouldSendNumPackets returns the number of packets that should be sent immediately.
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// It always returns a number greater or equal than 1.
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// A number greater than 1 is returned when the pacing delay is smaller than the minimum pacing delay.
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// Note that the number of packets is only calculated based on the pacing algorithm.
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// Before sending any packet, SendingAllowed() must be called to learn if we can actually send it.
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ShouldSendNumPackets() int
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GetStopWaitingFrame(force bool) *wire.StopWaitingFrame
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GetLowestPacketNotConfirmedAcked() protocol.PacketNumber
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DequeuePacketForRetransmission() (packet *Packet)
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GetLeastUnacked() protocol.PacketNumber
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GetAlarmTimeout() time.Time
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OnAlarm()
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}
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// ReceivedPacketHandler handles ACKs needed to send for incoming packets
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type ReceivedPacketHandler interface {
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ReceivedPacket(packetNumber protocol.PacketNumber, rcvTime time.Time, shouldInstigateAck bool) error
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IgnoreBelow(protocol.PacketNumber)
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GetAlarmTimeout() time.Time
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GetAckFrame() *wire.AckFrame
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}
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