64 lines
1.4 KiB
C++
64 lines
1.4 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 "threading.h"
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#include "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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namespace tgvoip{
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struct tgvoip_congestionctl_packet_t{
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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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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 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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tgvoip_congestionctl_packet_t inflightPackets[100];
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uint32_t lossCount;
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double tmpRtt;
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double lastActionTime;
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double lastActionRtt;
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double stateTransitionTime;
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int tmpRttCount;
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uint32_t lastSentSeq;
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uint32_t tickCount;
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size_t inflightDataSize;
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size_t cwnd;
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Mutex mutex;
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};
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}
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#endif //LIBTGVOIP_CONGESTIONCONTROL_H
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