PacketTracker.hpp

#pragma once
 
#include <cstdint>
 
enum class PacketReceiveRes {
  New,   
  Dup,   
  Out,   
  TooOld 
};
 
class PacketTracker {
public:
  PacketTracker();
 
  std::uint32_t getNextSequence();
 
  PacketReceiveRes onPacketReceived(std::uint32_t sequence);
 
  std::uint32_t getAck() const;
 
  std::uint32_t getAckBits() const;
 
  static bool isPacketinAck(std::uint32_t sequence, std::uint32_t ack,
                            std::uint32_t ackBits);
 
private:
  std::uint32_t _nextSequence;
  bool _hasReceivedPacket;
  std::uint32_t _lastReceived;
  std::uint32_t _receivedBits;
};