mirror of
https://github.com/danog/libtgvoip.git
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69 lines
1.6 KiB
C++
69 lines
1.6 KiB
C++
//
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// libtgvoip is free and unencumbered public domain software.
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// For more information, see http://unlicense.org or the UNLICENSE file
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// you should have received with this source code distribution.
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//
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#ifndef LIBTGVOIP_CONGESTIONCONTROL_H
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#define LIBTGVOIP_CONGESTIONCONTROL_H
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#include <stdlib.h>
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#include <stdint.h>
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#include "tools/threading.h"
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#include "tools/Buffers.h"
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#define TGVOIP_CONCTL_ACT_INCREASE 1
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#define TGVOIP_CONCTL_ACT_DECREASE 2
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#define TGVOIP_CONCTL_ACT_NONE 0
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#define TGVOIP_CONCTL_LOST_AFTER 2
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namespace tgvoip
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{
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struct tgvoip_congestionctl_packet_t
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{
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uint32_t seq;
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double sendTime;
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size_t size;
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};
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typedef struct tgvoip_congestionctl_packet_t tgvoip_congestionctl_packet_t;
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class CongestionControl
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{
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public:
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CongestionControl();
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~CongestionControl();
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void PacketSent(uint32_t seq, size_t size);
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void PacketLost(uint32_t seq);
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void PacketAcknowledged(uint32_t seq);
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double GetAverageRTT();
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double GetMinimumRTT();
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size_t GetInflightDataSize();
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size_t GetCongestionWindow();
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size_t GetAcknowledgedDataSize();
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void Tick();
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int GetBandwidthControlAction();
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uint32_t GetSendLossCount();
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private:
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HistoricBuffer<double, 100> rttHistory;
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HistoricBuffer<size_t, 30> inflightHistory;
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std::array<tgvoip_congestionctl_packet_t, 100> inflightPackets{};
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uint32_t lossCount = 0;
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double tmpRtt = 0.0;
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double lastActionTime = 0;
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double lastActionRtt = 0;
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double stateTransitionTime = 0;
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uint32_t tmpRttCount = 0;
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uint32_t lastSentSeq = 0;
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uint32_t tickCount = 0;
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size_t inflightDataSize = 0;
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size_t cwnd;
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};
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} // namespace tgvoip
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#endif //LIBTGVOIP_CONGESTIONCONTROL_H
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