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

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2013-06-19 04:53:08 +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 5 and Service example, front-end server.
*
* This front-end server expects pings, and forward them to
* the real ping server. When the ping server sends a pong back,
* the front-end server forwards it to the client.
*
* Even if the connection to the ping server is broken, our
* front-end server will keep storing the ping messages and
* will forward them when the connection is restored.
*
* To run this program, ensure there is a file "frontend_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/displayer.h"
#include "nel/misc/command.h"
#include "nel/misc/hierarchical_timer.h"
#include "nel/misc/bit_mem_stream.h"
#include <deque>
using namespace std;
using namespace NLNET;
using namespace NLMISC;
//
TTime pingDate;
/*
* Callback function called when receiving a "PONG" message
*
* Arguments:
* - msgin: the incoming message (coming from the ping server)
* - from: the "sockid" of the sender (usually useless for a CCallbackClient)
* - clientofthepingserver: the CCallbackNetBase object (which really is a CCallbackClient object)
*
* Input (expected message from the ping server): PONG
* - uint32: ping counter
* - TSockId: "sock id" of the client who sent the ping
*
* Output (sent message to a client): PONG
* - uint32: ping counter
*/
void cbPong(CMessage &msgin, const std::string &serviceName, TServiceId sid)
{
uint32 counter;
msgin.serial( counter );
TTime pingTime = CTime::getLocalTime()-pingDate;
nlinfo("Received PONG %u (%u ms)", counter, pingTime);
}
void sendPing()
{
pingDate = CTime::getLocalTime();
uint32 counter = 0;
CMessage msgout("PING");
msgout.serial( counter );
nlinfo( "Send PING 0");
CUnifiedNetwork::getInstance()->send("PS", msgout);
}
//
void cbPos(CMessage &msgin, const std::string &serviceName, TServiceId sid)
{
// decode the message
TCPUCycle v1 = CTime::getPerformanceTime ();
uint32 nbid;
msgin.serial (nbid);
for (uint i = 0; i < nbid; i++)
{
uint64 id;
msgin.serial (id);
}
TCPUCycle v2 = CTime::getPerformanceTime ();
nlinfo("Received POS from %s (serial: %.2fs)", serviceName.c_str(), CTime::ticksToSecond(v2-v1));
}
TTime t = 0;
void sendRequestVision ()
{
// nlSleep (1000);
CMessage msgout("ASK_VISION");
CUnifiedNetwork::getInstance()->send("GPMS", msgout);
nlinfo ("ask a new vision");
t = CTime::getLocalTime ();
}
void cbVision(CMessage &msgin, const std::string &serviceName, TServiceId sid)
{
uint32 NbValue;
uint32 Value;
t = CTime::getLocalTime() - t;
//H_BEFORE (Vision);
TCPUCycle v1 = CTime::getPerformanceTime ();
//H_BEFORE (serial);
msgin.serial (NbValue);
//H_AFTER (serial);
//H_BEFORE (serials);
for (uint i = 0; i < NbValue; i++)
msgin.serial( Value );
//H_AFTER (serials);
TCPUCycle v2 = CTime::getPerformanceTime ();
nlinfo("%dms of lag, Received Vision with %d values in %.2fms", (uint32) t, NbValue, CTime::ticksToSecond (v2-v1)*1000.0f);
// sendRequestVision();
//H_AFTER (Vision);
}
void sendPos()
{
nlinfo("Simulate receive pos from client, send POS to GPMS");
CMessage msgout("POS");
CUnifiedNetwork::getInstance()->send("GPMS", msgout);
}
//
void cbUpGPMS(const std::string &serviceName, TServiceId sid, void *arg)
{
nlinfo( "GPMS connecting.");
sendRequestVision ();
}
//
void cbUpPS(const std::string &serviceName, TServiceId sid, void *arg)
{
nlinfo( "Ping Service connecting.");
sendPing();
}
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 message received from the ping service
*/
NLNET::TUnifiedCallbackItem CallbackArray[] =
{
{ "POS", cbPos },
{ "PONG", cbPong },
{ "VISION", cbVision }
};
/*
* CFrontEndService, based on IService
*/
class CFrontEndService : public NLNET::IService
{
public:
bool update()
{
static TTime lastPing = CTime::getLocalTime();
static TTime lastGetPos = CTime::getLocalTime();
TTime ctime = CTime::getLocalTime();
// check vision every 2 seconds
if (ctime - lastPing> 2000)
{
sendRequestVision();
lastPing = ctime;
}
/*
// check ping every 15 seconds
if (ctime - lastPing> 15000)
{
sendPing();
lastPing = ctime;
}
// do as if receive a position every second
if (ctime - lastGetPos > 1000)
{
sendPos();
lastGetPos = ctime;
}
*/
return true;
}
/*
* Initialization
*/
void init()
{
/* uint32 u = 0xFFFFFFFF;
uint32 z = 0;
uint32 res = 0;
CBitMemStream bms2;
bms2.serial (u, 1);
bms2.serial (z, 18);
bms2.serial (u, 4);
bms2.serial (z, 3);
nlinfo ("len %d", bms2.length());
bms2.invert ();
nlinfo ("len %d", bms2.length());
bms2.invert ();
nlinfo ("len %d", bms2.length());
*/
/* CBitMemStream bms;
nlinfo ("len %d", bms.length());
bms.serial (u, 1);
bms.serial (z, 18);
bms.serial (u, 4);
bms.serial (z, 3);
bms.serial (u, 30);
nlinfo ("len %d", bms.length());
bms.clear ();
nlinfo ("len %d", bms.length());
bms.serial (z, 1);
bms.serial (u, 18);
bms.serial (z, 4);
bms.serial (u, 3);
bms.serial (z, 30);
nlinfo ("len %d", bms.length());
vector<uint32> cont;
for(uint i=0;i<32;i++) cont.push_back(i);
bms.serialCont (cont);
nlinfo ("len %d", bms.length());
bms.invert ();
nlinfo ("len %d", bms.length());
while (bms.getPosInBit() != 30+3+4+18+1)
{
nlinfo ("%d", bms.getPosInBit());
bms.serial (res, 1);
nlinfo ((res==0)?"0":"1");
}
nlinfo ("%d", bms.getPosInBit());
vector<uint32> cont2;
bms.serialCont (cont2);
nlinfo ("%d", bms.getPosInBit());
for(uint j=0;j<cont2.size();j++) nlinfo ("const %d %d",j, cont2[j]);
nlinfo ("%d", bms.getPosInBit());
*/
// Connect to the ping service
NLNET::CUnifiedNetwork *instance = NLNET::CUnifiedNetwork::getInstance();
instance->setServiceUpCallback("PS", cbUpPS, NULL);
instance->setServiceDownCallback("PS", cbDownPS, NULL);
instance->setServiceUpCallback("GPMS", cbUpGPMS, NULL);
instance->setServiceUpCallback("*", cbUpService, NULL);
instance->setServiceDownCallback("*", cbDownService, NULL);
}
};
/*
* Declare a service with the class CFrontEndService, the names "FS" (short) and "frontend_service" (long).
* The port is set to 37000 and the main callback array is CallbackArray.
*/
NLNET_SERVICE_MAIN( CFrontEndService, "FS", "frontend_service", 37000, CallbackArray, "", "" )