khanat-opennel-code/code/nel/samples/net/udp/client.cpp

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// 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/>.
//
// Includes
//
#include "nel/misc/types_nl.h"
#include "nel/misc/debug.h"
#include "nel/misc/mem_stream.h"
#include "nel/misc/time_nl.h"
#include "nel/misc/config_file.h"
#include "nel/net/udp_sock.h"
#include "nel/net/callback_client.h"
#include "nel/net/inet_address.h"
#include "nel/net/udp_sim_sock.h"
#include "graph.h"
#ifdef USE_3D
#include "nel/3d/u_driver.h"
#include "nel/3d/u_scene.h"
#include "nel/3d/u_camera.h"
#include "nel/3d/u_instance.h"
#include "nel/3d/u_animation_set.h"
#include "nel/3d/u_play_list.h"
#include "nel/3d/u_play_list_manager.h"
#include "nel/3d/u_text_context.h"
#include "nel/3d/u_texture.h"
#include "nel/3d/event_mouse_listener.h"
using namespace NL3D;
#endif
#ifndef UDP_DIR
#define UDP_DIR "."
#endif // UDP_DIR
//
// Namespaces
//
using namespace std;
using namespace NLMISC;
using namespace NLNET;
//
// Variables
//
// must be increase at each version and must be the same value as the server
uint32 Version = 2;
string ServerAddr = "itsalive.nevrax.org"; // ldserver
uint16 UDPPort = 45455;
uint16 TCPPort = 45456;
uint32 MaxUDPPacketSize = 1000;
CUdpSimSock *UdpSock = NULL;
uint8 Mode = 0;
uint64 Session = 0;
string ConnectionName;
CConfigFile ConfigFile;
#ifdef USE_3D
CGraph FpsGraph ("frame rate (fps)", 10.0f, 110.0f, 100.0f, 100.0f, CRGBA(128,0,0,128), 1000, 150.0f);
CGraph DownloadGraph ("download (bps)", 10.0f, 260.0f, 100.0f, 100.0f, CRGBA(0,0,128,128), 1000, 20000.0f);
CGraph UploadGraph ("upload (bps)", 10.0f, 360.0f, 100.0f, 100.0f, CRGBA(0,128,128,128), 1000, 20000.0f);
CGraph LagGraph ("lag (ms)", 150.0f, 110.0f, 100.0f, 100.0f, CRGBA(128,64,64,128), 100000, 2000.0f);
#endif
//
// Functions
//
void exit (const string &reason)
{
if (!reason.empty())
InfoLog->displayRawNL ("%s", reason.c_str());
InfoLog->displayRawNL ("Press <enter> to exit");
getchar ();
exit(EXIT_FAILURE);
}
//
// Config file functions
//
void createConfigFile()
{
FILE *fp = fopen ("client.cfg", "wt");
if (fp == NULL)
{
InfoLog->displayRawNL ("Can't create client.cfg");
}
else
{
fprintf (fp, "ServerAddress = \"%s\";\n", ServerAddr.c_str());
fprintf (fp, "SimInLag = 0;\n");
fprintf (fp, "SimInPacketLost = 0;\n");
fprintf (fp, "SimOutLag = 0;\n");
fprintf (fp, "SimOutPacketLost = 0;\n");
fprintf (fp, "SimOutPacketDuplication = 0;\n");
fprintf (fp, "SimOutPacketDisordering = 0;\n");
fprintf (fp, "ConnectionName = \"\";\n");
fclose (fp);
}
}
void checkConnectionName ()
{
if (ConnectionName.size() > 30)
{
exit ("Bad connection name (must be <= 30 characters)");
}
if (ConnectionName.size() > 0 && ConnectionName[ConnectionName.size()-1] == '\n')
{
ConnectionName = ConnectionName.substr (0, ConnectionName.size()-1);
}
if (ConnectionName.size() <= 0)
{
exit ("Bad connection name (must be > 0 character)");
}
for (uint i = 0; i < ConnectionName.size(); i++)
{
if (!isalnum(ConnectionName[i]))
{
exit ("Bad connection name, only alpha numeric characters is allowed (char '%c' is not alphanum)");
}
}
}
void loadConfigFile ()
{
FILE *fp = fopen ("client.cfg", "rt");
if (fp == NULL)
{
createConfigFile();
}
else
{
fclose (fp);
}
ConfigFile.load ("client.cfg");
// set internet simulation values
CUdpSimSock::setSimValues (ConfigFile);
ServerAddr = ConfigFile.getVar("ServerAddress").asString();
ConnectionName = ConfigFile.getVar("ConnectionName").asString();
if (ConnectionName.empty())
{
InfoLog->displayRawNL ("Please, enter a connection name");
InfoLog->displayRawNL ("(only alphanumeric character limited to 30 character, no space)");
InfoLog->displayRawNL ("For example enter your name and/or your location (ie: \"AceHome\"),");
InfoLog->displayRawNL ("It'll be use to find your stat file easier:");
char cn[128];
if (fgets (cn, 127, stdin) == NULL)
{
exit ("Error during the keyboard scanning");
}
ConnectionName = cn;
checkConnectionName ();
ConfigFile.getVar ("ConnectionName").setAsString(ConnectionName);
ConfigFile.save ();
}
else
{
checkConnectionName ();
}
}
//
// Callbacks
//
void cbInfo (CMessage &msgin, TSockId from, CCallbackNetBase &netbase)
{
string line;
msgin.serial (line);
InfoLog->displayRawNL ("%s", line.c_str());
#ifdef USE_3D
string token = "MeanPongTime ";
string::size_type pos=line.find (token);
string::size_type pos2=line.find (" ", pos+token.size());
float val;
NLMISC::fromString(line.substr (pos+token.size(), pos2-pos-token.size()), val);
LagGraph.addOneValue (val);
#endif
}
void cbInit (CMessage &msgin, TSockId from, CCallbackNetBase &netbase)
{
msgin.serial (Session);
// create the UDP connection
nlassert (UdpSock == NULL);
UdpSock = new CUdpSimSock( false );
try
{
UdpSock->connect( CInetAddress (ServerAddr, UDPPort) );
}
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catch (const Exception &e)
{
InfoLog->displayRawNL ("Cannot connect to remote UDP host '%s': %s", ServerAddr.c_str(), e.what() );
exit ("");
}
}
void cbStart (CMessage &msgin, TSockId from, CCallbackNetBase &netbase)
{
InfoLog->displayRawNL ("Bench is starting..");
Mode = 1;
}
void cbDisconnect (TSockId from, void *arg)
{
exit ("Lost the server connection. You should not have the last client version\nGet it here: http://www.nevrax.org/download/bench.zip");
}
TCallbackItem CallbackArray[] =
{
{ "INIT", cbInit },
{ "INFO", cbInfo },
{ "START", cbStart },
};
//
// Main
//
int main( int argc, char **argv )
{
createDebug ();
DebugLog->addNegativeFilter(" ");
InfoLog->displayRawNL ("\nNevrax UDP benchmark client\n\nPress <CTRL-C> to exit");
CPath::addSearchPath(UDP_DIR);
loadConfigFile ();
CCallbackClient *cc = new CCallbackClient;
cc->addCallbackArray (CallbackArray, sizeof(CallbackArray)/sizeof(CallbackArray[0]));
cc->setDisconnectionCallback (cbDisconnect, NULL);
try
{
InfoLog->displayRawNL ("Try to connect to %s:%d", ServerAddr.c_str(), TCPPort);
cc->connect(CInetAddress (ServerAddr, TCPPort));
CMessage msgout ("INIT");
msgout.serial (ConnectionName);
msgout.serial (Version);
cc->send (msgout);
InfoLog->displayRawNL ("Waiting the server answer...");
}
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catch(const Exception &e)
{
InfoLog->displayRawNL ("Can't connect to %s:%d (%s)\n", ServerAddr.c_str(), TCPPort, e.what());
exit ("");
}
uint8 *packet = new uint8[MaxUDPPacketSize];
uint32 psize;
#ifdef USE_3D
UDriver *Driver = UDriver::createDriver();
Driver->setDisplay(UDriver::CMode(800, 600, 32, true));
UScene *Scene= Driver->createScene(false);
UCamera Camera= Scene->getCam();
Camera.setTransformMode(UTransform::DirectMatrix);
UTextContext *TextContext= Driver->createTextContext(CPath::lookup("n019003l.pfb"));
TextContext->setFontSize(18);
Camera.setPerspective(80*(float)Pi/180, 1.33f, 0.15f, 1000);
CEvent3dMouseListener MouseListener;
MouseListener.addToServer(Driver->EventServer);
MouseListener.setFrustrum(Camera.getFrustum());
MouseListener.setHotSpot(CVector(0,0,0));
CMatrix initMat;
initMat.setPos(CVector(0,-5,0));
MouseListener.setMatrix(initMat);
#endif
while (cc->connected ())
{
#ifdef USE_3D
// Manip.
Camera.setMatrix(MouseListener.getViewMatrix());
Driver->EventServer.pump();
if(Driver->AsyncListener.isKeyPushed(KeyESCAPE))
return EXIT_SUCCESS;
Driver->clearBuffers(CRGBA(255,255,255,0));
Scene->render();
CGraph::render (*Driver, *TextContext);
Driver->swapBuffers();
FpsGraph.addValue (1);
#endif
CConfigFile::checkConfigFiles ();
// update TCP connection
cc->update ();
// update UDP connection
if (UdpSock != NULL)
{
if (Mode == 0)
{
// init the UDP connection
CMemStream msgout;
msgout.serial (Mode);
msgout.serial (Session);
uint32 size = msgout.length();
#ifdef USE_3D
UploadGraph.addValue ((float)size);
#endif
UdpSock->send (msgout.buffer(), size);
nldebug ("Sent init udp connection");
nlSleep (100);
}
while (UdpSock->dataAvailable())
{
psize = MaxUDPPacketSize;
UdpSock->receive (packet, psize);
#ifdef USE_3D
DownloadGraph.addValue ((float)psize);
#endif
CMemStream msgin( true );
memcpy (msgin.bufferToFill (psize), packet, psize);
sint64 t = 0;
msgin.serial (t);
uint32 p = 0;
msgin.serial (p);
uint32 b = 0;
msgin.serial (b);
// I received a ping, send a pong
CMemStream msgout;
msgout.serial (Mode);
msgout.serial (t);
msgout.serial (p);
msgout.serial (b);
uint8 dummy=0;
while (msgout.length() < 200)
msgout.serial (dummy);
uint32 size = msgout.length();
nlassert (size == 200);
#ifdef USE_3D
UploadGraph.addValue ((float)size);
#endif
UdpSock->send (msgout.buffer(), size);
}
}
nlSleep (1);
}
exit ("");
return EXIT_SUCCESS;
}