SentPacketHistory.h

//
//  SentPacketHistory.h
//  libraries/networking/src
//
//  Created by Yixin Wang on 6/5/2014
//
//  Distributed under the Apache License, Version 2.0.
//  See the accompanying file LICENSE or http://www.apache.org/licenses/LICENSE-2.0.html
//
 
#ifndef hifi_SentPacketHistory_h
#define hifi_SentPacketHistory_h
 
#include <stdint.h>
 
#include <QtCore/QByteArray>
#include <QtCore/QReadWriteLock>
 
#include "NLPacket.h"
#include "RingBufferHistory.h"
#include "SequenceNumberStats.h"
 
class NLPacket;
 
class SentPacketHistory {
 
public:
    SentPacketHistory(int size = MAX_REASONABLE_SEQUENCE_GAP);
 
    void untrackedPacketSent(uint16_t sequenceNumber);
 
    void packetSent(uint16_t sequenceNumber, const NLPacket& packet);
    const NLPacket* getPacket(uint16_t sequenceNumber) const;
 
private:
    mutable QReadWriteLock _packetsLock { QReadWriteLock::Recursive };
    RingBufferHistory<std::unique_ptr<NLPacket>> _sentPackets;    // circular buffer
 
    uint16_t _newestSequenceNumber;
};
 
#endif