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use PRR when deciding if we're congestion limited

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This commit is contained in:
Marten Seemann 2019-05-19 16:49:55 +02:00
parent 42381ea6f2
commit 3e67c12d76
7 changed files with 93 additions and 66 deletions
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8
internal/congestion/cubic_sender.go
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@ -63,6 +63,7 @@ type cubicSender struct {
}
var _ SendAlgorithm = &cubicSender{}
var _ SendAlgorithmWithDebugInfos = &cubicSender{}
// NewCubicSender makes a new cubic sender
func NewCubicSender(clock Clock, rttStats *RTTStats, reno bool, initialCongestionWindow, initialMaxCongestionWindow protocol.ByteCount) *cubicSender {
@ -112,6 +113,13 @@ func (c *cubicSender) OnPacketSent(
c.hybridSlowStart.OnPacketSent(packetNumber)
}
func (c *cubicSender) CanSend(bytesInFlight protocol.ByteCount) bool {
if c.InRecovery() {
return c.prr.CanSend(c.GetCongestionWindow(), bytesInFlight, c.GetSlowStartThreshold())
}
return bytesInFlight < c.GetCongestionWindow()
}
func (c *cubicSender) InRecovery() bool {
return c.largestAckedPacketNumber != protocol.InvalidPacketNumber && c.largestAckedPacketNumber <= c.largestSentAtLastCutback
}