112 lines
2.7 KiB
C
112 lines
2.7 KiB
C
/*
|
|
* PVVMUD a 3D MUD
|
|
* Copyright (C) 1998-1999 Programvareverkstedet (pvv@pvv.org)
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
|
|
*
|
|
*/
|
|
#include <algorithm>
|
|
#include "pvvmud.H"
|
|
#include "pingpong.H"
|
|
|
|
CPingPong::CPingPong(BYTE maxPing){
|
|
m_currPing = 0;
|
|
m_numPing = 0;
|
|
m_maxPing = maxPing;
|
|
m_pingPong = (pingPong_t*)malloc(m_maxPing*sizeof(pingPong_t));
|
|
for (int index = 0; index < m_maxPing; index++)
|
|
m_pingPong[index].state = PS_NOTUSED;
|
|
m_firstPing = TRUE;
|
|
}
|
|
|
|
CPingPong::~CPingPong(){
|
|
free(m_pingPong);
|
|
}
|
|
|
|
delta_t CPingPong::getDeltaVector(DWORD * deltaTime){
|
|
delta_t delta(m_numPing);
|
|
|
|
for (int index = 0; index < m_numPing; index++){
|
|
delta[index] = m_pingPong[index].reciveTime
|
|
- m_pingPong[index].sendTime;
|
|
}
|
|
|
|
sort(delta.begin(),delta.end());
|
|
|
|
*deltaTime = delta[m_numPing/2];
|
|
|
|
return delta;
|
|
}
|
|
|
|
BYTE CPingPong::sendPing(DWORD sendTime){
|
|
|
|
BYTE currPing = m_currPing;
|
|
|
|
m_currPing++;
|
|
if (m_numPing < m_currPing) m_numPing = m_currPing;
|
|
if (m_currPing >= m_maxPing) m_currPing = 0;
|
|
|
|
m_pingPong[currPing].sendTime = sendTime;
|
|
m_pingPong[currPing].state = PS_WAIT;
|
|
|
|
return currPing;
|
|
}
|
|
|
|
long CPingPong::recivePong(DWORD reciveTime, BYTE sequenceNumber,
|
|
DWORD serverTime)
|
|
{
|
|
|
|
m_pingPong[sequenceNumber].reciveTime = reciveTime;
|
|
m_pingPong[sequenceNumber].serverTime = serverTime;
|
|
m_pingPong[sequenceNumber].state = PS_OK;
|
|
DWORD sendTime = m_pingPong[sequenceNumber].sendTime;
|
|
|
|
DWORD timeDelta = reciveTime - sendTime;
|
|
|
|
if (timeDelta > 10000){
|
|
m_pingPong[sequenceNumber].state = PS_BAD;
|
|
}
|
|
|
|
DWORD deltaTime;
|
|
delta_t delta = getDeltaVector(&deltaTime);
|
|
|
|
long timediff = sendTime - (serverTime + deltaTime/2);
|
|
|
|
if (m_firstPing){
|
|
m_firstPing = FALSE;
|
|
return timediff;
|
|
}
|
|
|
|
return timediff/2;
|
|
|
|
}
|
|
|
|
|
|
ostream& operator<<(ostream&s,CPingPong&p){
|
|
s << (int)p.m_numPing << "/" << (int)p.m_maxPing << " :";
|
|
|
|
DWORD deltaTime;
|
|
delta_t delta = p.getDeltaVector(&deltaTime);
|
|
|
|
for (int index = 0; index < p.m_numPing; index++){
|
|
s << " " << delta[index];
|
|
}
|
|
|
|
s << " : " << deltaTime/2;
|
|
|
|
return s;
|
|
}
|
|
|