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// Copyright 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef QUICHE_QUIC_CORE_CONGESTION_CONTROL_BBR2_PROBE_RTT_H_
#define QUICHE_QUIC_CORE_CONGESTION_CONTROL_BBR2_PROBE_RTT_H_
#include "quiche/quic/core/congestion_control/bbr2_misc.h"
#include "quiche/quic/core/quic_time.h"
#include "quiche/quic/core/quic_types.h"
#include "quiche/quic/platform/api/quic_export.h"
namespace quic {
class Bbr2Sender;
class QUIC_EXPORT_PRIVATE Bbr2ProbeRttMode final : public Bbr2ModeBase {
public:
using Bbr2ModeBase::Bbr2ModeBase;
void Enter(QuicTime now,
const Bbr2CongestionEvent* congestion_event) override;
void Leave(QuicTime /*now*/,
const Bbr2CongestionEvent* /*congestion_event*/) override {}
Bbr2Mode OnCongestionEvent(
QuicByteCount prior_in_flight, QuicTime event_time,
const AckedPacketVector& acked_packets,
const LostPacketVector& lost_packets,
const Bbr2CongestionEvent& congestion_event) override;
Limits<QuicByteCount> GetCwndLimits() const override;
bool IsProbingForBandwidth() const override { return false; }
Bbr2Mode OnExitQuiescence(QuicTime now,
QuicTime quiescence_start_time) override;
struct QUIC_EXPORT_PRIVATE DebugState {
QuicByteCount inflight_target;
QuicTime exit_time = QuicTime::Zero();
};
DebugState ExportDebugState() const;
private:
const Bbr2Params& Params() const;
QuicByteCount InflightTarget() const;
QuicTime exit_time_ = QuicTime::Zero();
};
QUIC_EXPORT_PRIVATE std::ostream& operator<<(
std::ostream& os, const Bbr2ProbeRttMode::DebugState& state);
} // namespace quic
#endif // QUICHE_QUIC_CORE_CONGESTION_CONTROL_BBR2_PROBE_RTT_H_