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/* Starshatter OpenSource Distribution
Copyright (c) 1997-2004, Destroyer Studios LLC.
All Rights Reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
* Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
* Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
* Neither the name "Destroyer Studios" nor the names of its contributors
may be used to endorse or promote products derived from this software
without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
POSSIBILITY OF SUCH DAMAGE.
SUBSYSTEM: NetEx.lib
FILE: NetPeer.h
AUTHOR: John DiCamillo
OVERVIEW
========
One side of a UDP net link connection
*/
#ifndef NetPeer_h
#define NetPeer_h
#include <windows.h>
#include "NetAddr.h"
#include "List.h"
#include "ThreadSync.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;
ThreadSync sync;
};
#endif // NetPeer_h
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