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ton/rldp2/Bbr.h
2020-07-06 17:07:20 +03:00

48 lines
1.4 KiB
C++

/*
This file is part of TON Blockchain Library.
TON Blockchain Library is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
TON Blockchain Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with TON Blockchain Library. If not, see <http://www.gnu.org/licenses/>.
Copyright 2017-2020 Telegram Systems LLP
*/
#pragma once
#include "td/utils/int_types.h"
#include "td/utils/Time.h"
namespace ton {
namespace rldp2 {
struct RttStats;
struct BdwStats;
struct Bbr {
public:
void step(const RttStats &rtt_stats, const BdwStats &bdw_stats, td::uint64 in_flight, td::Timestamp now);
double get_rate() const;
td::uint32 get_window_size() const;
private:
double bdw_peak_{-1};
td::uint32 bdw_peak_at_round{0};
td::uint32 probe_bdw_cycle_{0};
td::Timestamp probe_bdw_cycle_at_;
double rtt_min_{0};
double bdw_max_{0};
enum class State { Start, Drain, ProbeRtt, ProbeBdw } state_ = State::Start;
};
} // namespace rldp2
} // namespace ton