Retro68/LaunchAPPL/Common/ReliableStream.h

55 lines
1.1 KiB
C
Raw Normal View History

#ifndef RELIABLESTREAM_H_
#define RELIABLESTREAM_H_
#include "Stream.h"
#include <vector>
#include <list>
class ReliableStream : public Stream, public StreamListener
{
Stream& stream;
static const int maxInFlight = 4;
static const int packetSize = 1024;
unsigned receivedInputPacket = 0;
unsigned sentOutputPacket = 0;
unsigned ackedOutputPacket = 0;
void sendOnePacket();
void sendPackets();
void nack();
void ack();
void gotNack(uint8_t id);
void gotAck(uint8_t id);
void processIncoming();
enum class State
{
waiting,
skipping,
receiving
};
State state = State::waiting;
std::vector<uint8_t> incomingPacket;
int inputMatchMagic1, inputMatchMagic2;
std::list<std::vector<uint8_t>> packetsToSend;
std::list<std::vector<uint8_t>> sentPackets;
public:
ReliableStream(Stream& stream);
virtual ~ReliableStream();
virtual void write(const void* p, size_t n) override;
virtual void flushWrite() override;
virtual size_t onReceive(const uint8_t* p, size_t n) override;
};
#endif