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/* Starshatter: The Open Source Project
Copyright (c) 2021-2022, Starshatter: The Open Source Project Contributors
Copyright (c) 2011-2012, Starshatter OpenSource Distribution Contributors
Copyright (c) 1997-2006, Destroyer Studios LLC.
AUTHOR: John DiCamillo
OVERVIEW
========
One side of a UDP net link connection
*/
#ifndef NetPeer_h
#define NetPeer_h
#include <mutex>
#include <windows.h>
#include "NetAddr.h"
#include "List.h"
// +-------------------------------------------------------------------+
class NetGram;
class NetMsg;
// +-------------------------------------------------------------------+
class NetPeer
{
public:
static const char* TYPENAME() { return "NetPeer"; }
enum STATUS { OK, SEND_OVERFLOW, RECV_OVERFLOW };
NetPeer(const NetAddr& addr, DWORD id);
~NetPeer();
int operator == (const NetPeer& p) const { return netid == p.netid; }
bool SendMessage(NetMsg* msg);
NetMsg* GetMessage();
NetGram* ComposeGram();
bool ReceiveGram(NetGram* g, List<NetMsg>* q=0);
const NetAddr& Address() const { return addr; }
DWORD NetID() const { return netid; }
DWORD Sequence() const { return sequence; }
int GetMaxPPS() const { return pps; }
void SetMaxPPS(int p) { pps = p; }
int GetMaxBPS() const { return bps; }
void SetMaxBPS(int b) { bps = b; }
int GetMaxQSize() const { return max_qsize; }
void SetMaxQSize(int q) { max_qsize = q; }
DWORD GetChunkSize() const { return chunk_size; }
void SetChunkSize(DWORD s) { chunk_size = s; }
DWORD LastReceiveTime() const { return last_recv_time; }
void SetLastReceiveTime(DWORD t) { last_recv_time = t; }
private:
bool OKtoSend() const;
void CheckMultiRecv(List<NetMsg>* q);
NetAddr addr; // remote network address
DWORD sequence; // highest packet id received
DWORD netid; // unique id for this peer
int pps; // max packets per second
int bps; // max bits per second
int max_qsize; // max bytes in either queue
int status; // ok or error code
DWORD chunk_size; // size of multipart message chunk
enum HIST { HIST_SIZE=8 };
DWORD last_recv_time; // time of last received packet
DWORD hist_time[HIST_SIZE]; // history for pps check
DWORD hist_size[HIST_SIZE]; // history for bps check
int hist_indx; // index into history
int send_size; // total bytes in send list
int recv_size; // total bytes in recv list
List<NetMsg> send_list; // queue of messages waiting to be sent
List<NetMsg> recv_list; // queue of messages waiting to be read
List<NetMsg> multi_send_list;
List<NetMsg> multi_recv_list;
std::mutex sync;
};
#endif // NetPeer_h
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