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woodpecker/vendor/github.com/lucas-clemente/quic-go/congestion/interface.go

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2017-07-25 01:15:25 +02:00
package congestion
import (
"time"
"github.com/lucas-clemente/quic-go/protocol"
)
// A SendAlgorithm performs congestion control and calculates the congestion window
type SendAlgorithm interface {
TimeUntilSend(now time.Time, bytesInFlight protocol.ByteCount) time.Duration
OnPacketSent(sentTime time.Time, bytesInFlight protocol.ByteCount, packetNumber protocol.PacketNumber, bytes protocol.ByteCount, isRetransmittable bool) bool
GetCongestionWindow() protocol.ByteCount
MaybeExitSlowStart()
OnPacketAcked(number protocol.PacketNumber, ackedBytes protocol.ByteCount, bytesInFlight protocol.ByteCount)
OnPacketLost(number protocol.PacketNumber, lostBytes protocol.ByteCount, bytesInFlight protocol.ByteCount)
SetNumEmulatedConnections(n int)
OnRetransmissionTimeout(packetsRetransmitted bool)
OnConnectionMigration()
RetransmissionDelay() time.Duration
// Experiments
SetSlowStartLargeReduction(enabled bool)
}
// SendAlgorithmWithDebugInfo adds some debug functions to SendAlgorithm
type SendAlgorithmWithDebugInfo interface {
SendAlgorithm
BandwidthEstimate() Bandwidth
// Stuff only used in testing
HybridSlowStart() *HybridSlowStart
SlowstartThreshold() protocol.PacketNumber
RenoBeta() float32
InRecovery() bool
}