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package congestion
import (
"github.com/quic-go/quic-go/internal/monotime"
"github.com/quic-go/quic-go/internal/protocol"
)
// A SendAlgorithm performs congestion control
type SendAlgorithm interface {
TimeUntilSend(bytesInFlight protocol.ByteCount) monotime.Time
HasPacingBudget(now monotime.Time) bool
OnPacketSent(sentTime monotime.Time, bytesInFlight protocol.ByteCount, packetNumber protocol.PacketNumber, bytes protocol.ByteCount, isRetransmittable bool)
CanSend(bytesInFlight protocol.ByteCount) bool
MaybeExitSlowStart()
OnPacketAcked(number protocol.PacketNumber, ackedBytes protocol.ByteCount, priorInFlight protocol.ByteCount, eventTime monotime.Time)
OnCongestionEvent(number protocol.PacketNumber, lostBytes protocol.ByteCount, priorInFlight protocol.ByteCount)
OnRetransmissionTimeout(packetsRetransmitted bool)
SetMaxDatagramSize(protocol.ByteCount)
}
// A SendAlgorithmWithDebugInfos is a SendAlgorithm that exposes some debug infos
type SendAlgorithmWithDebugInfos interface {
SendAlgorithm
InSlowStart() bool
InRecovery() bool
GetCongestionWindow() protocol.ByteCount
}
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