khanat-opennel-code/code/nel/samples/net/net_layer5/flood_service.cpp

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2011-08-13 15:39:55 +00:00
// NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
// Copyright (C) 2010 Winch Gate Property Limited
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
/*
* Layer 4 and Service example, ping server.
*
* This ping service expects pings, sends pongs back.
*
* To run this program, ensure there is a file "ping_service.cfg"
* containing the location of the naming service (NSHost, NSPort)
* in the working directory. The naming service must be running.
*/
// We're using the NeL Service framework, and layer 5
#include "nel/net/service.h"
#include "nel/misc/time_nl.h"
#include "nel/misc/thread.h"
using namespace std;
using namespace NLNET;
using namespace NLMISC;
//
const uint NumThreads = 10;
volatile TTime PingDates[NumThreads];
volatile bool ServiceReady = false;
void cbPong(CMessage &msgin, const std::string &serviceName, TServiceId sid)
{
uint32 counter;
msgin.serial( counter );
TTime pingTime = CTime::getLocalTime()-PingDates[counter];
PingDates[counter] = 0;
nlinfo("Received PONG %u (%u ms)", counter, pingTime);
CMessage msgout("ACK_POS");
CUnifiedNetwork::getInstance()->send("PLS", msgout);
}
void sendPing(uint i)
{
PingDates[i] = CTime::getLocalTime();
uint32 counter = i;
CMessage msgout("PING");
msgout.serial( counter );
nlinfo( "Send PING %d", counter);
CUnifiedNetwork::getInstance()->send("PS", msgout);
nlinfo( "PING %d sent", counter);
}
class CPinger : public IRunnable
{
private:
static volatile uint _PingerCount;
uint _PingerId;
public:
CPinger()
{
_PingerId = _PingerCount++;
}
void run()
{
uint i;
uint totalPing = 0;
while (!ServiceReady)
{
nlSleep(10);
}
while (totalPing < 200)
{
i = rand()*200/RAND_MAX+200;
nlSleep(i);
if (PingDates[_PingerId] == 0)
{
sendPing(_PingerId);
++totalPing;
}
}
}
};
volatile uint CPinger::_PingerCount = 0;
//
void cbPos(CMessage &msgin, const std::string &serviceName, TServiceId sid)
{
CMessage msgout("POS");
CUnifiedNetwork::getInstance()->send("GPMS", msgout);
nlinfo( "Received POS from %s, send POS to GPMS", serviceName.c_str());
}
void cbAckPos(CMessage &msgin, const std::string &serviceName, TServiceId sid)
{
nlinfo( "Received ACK_POS from %s", serviceName.c_str());
}
//
void cbUpPS(const std::string &serviceName, TServiceId sid, void *arg)
{
nlinfo("Ping Service connecting");
}
void cbDownPS(const std::string &serviceName, TServiceId sid, void *arg)
{
nlinfo("Ping Service disconnecting");
}
//
void cbUpService(const std::string &serviceName, TServiceId sid, void *arg)
{
nlinfo("Service %s %d is up", serviceName.c_str(), sid.get());
}
void cbDownService(const std::string &serviceName, TServiceId sid, void *arg)
{
nlinfo("Service %s %d is down", serviceName.c_str(), sid.get());
}
/*
* Callback array for messages received from a client
*/
TUnifiedCallbackItem CallbackArray[] =
{
{ "PONG", cbPong },
{ "POS", cbPos },
{ "ACK_POS", cbAckPos }
};
//
class CFloodService : public IService
{
public:
bool update()
{
ServiceReady = true;
return true;
}
/*
* Initialization
*/
void init()
{
// Connect to the ping service
CUnifiedNetwork *instance = CUnifiedNetwork::getInstance();
instance->setServiceUpCallback("PS", cbUpPS, NULL);
instance->setServiceDownCallback("PS", cbDownPS, NULL);
instance->setServiceUpCallback("*", cbUpService, NULL);
instance->setServiceDownCallback("*", cbDownService, NULL);
uint i;
for (i=0; i<NumThreads; ++i)
{
IRunnable *runnable = (IRunnable *)(new CPinger());
IThread *thread = IThread::create(runnable);
thread->start();
}
}
};
/*
* Declare a service with the class IService, the names "PS" (short) and "ping_service" (long).
* The port is automatically allocated (0) and the main callback array is CallbackArray.
*/
NLNET_SERVICE_MAIN( CFloodService, "FLS", "flood_service", 0, CallbackArray, "", "" )