nel/samples/net/multi_shards/frontend_service.cpp

   1 // NeL - MMORPG Framework <http://dev.ryzom.com/projects/nel/>
   2 // Copyright (C) 2010  Winch Gate Property Limited
   3 //
   4 // This program is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU Affero General Public License as
   6 // published by the Free Software Foundation, either version 3 of the
   7 // License, or (at your option) any later version.
   8 //
   9 // This program is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU Affero General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU Affero General Public License
  15 // along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16
  17
  18 /*
  19  * multi shard example, front-end server.
  20  *
  21  * The goal of the example is to enable you to run 2 differents shards
  22  * on the same computer with a login system.
  23  *
  24  * The naming service, admin executor service, login service, welcome service must be running.
  25  */
  26
  27
  28 // We're using the NeL Service framework and layer 5.
  29 #include "nel/misc/config_file.h"
  30
  31 #include "nel/net/callback_server.h"
  32 #include "nel/net/service.h"
  33 #include "nel/net/login_server.h"
  34
  35 using namespace std;
  36 using namespace NLNET;
  37 using namespace NLMISC;
  38
  39 /*
  40  * Connection callback for a client
  41  */
  42 void onConnectionClient (TSockId from, const CLoginCookie &cookie)
  43 {
  44         nlinfo ("The client with uniq Id %d is connected", cookie.getUserId ());
  45
  46         // store the user id in appId
  47         from->setAppId (cookie.getUserId ());
  48 }
  49
  50
  51 /*
  52  * Disonnection callback for a client
  53  */
  54 void onDisconnectClient (TSockId from, void *arg)
  55 {
  56         nlinfo ("A client with uniq Id %d has disconnected", from->appId ());
  57
  58         // tell the login system that this client is disconnected
  59         CLoginServer::clientDisconnected ((uint32) from->appId ());
  60 }
  61
  62 /*
  63  * CFrontEndService, based on IService
  64  */
  65 class CFrontEndService : public IService
  66 {
  67 private:
  68         /// The server on which the clients connect
  69         CCallbackServer         _FEServer;
  70
  71 public:
  72
  73         /*
  74          * Initialization
  75          */
  76         void init()
  77         {
  78                 // create a special connection for client (using TCP on port 37373)
  79                 uint16  fesPort = 37373;
  80                 try
  81                 {
  82                         fesPort = IService::ConfigFile.getVar("FESPort").asInt();
  83                 }
  84                 catch ( EUnknownVar& )
  85                 {
  86                 }
  87                 _FEServer.init(fesPort);
  88
  89                 // connect and identify this front end to the login system
  90                 CLoginServer::init (_FEServer, onConnectionClient);
  91
  92                 //
  93                 _FEServer.setDisconnectionCallback(onDisconnectClient, NULL);
  94         }
  95
  96         bool    update()
  97         {
  98                 _FEServer.update();
  99                 return true;
 100         }
 101 };
 102
 103 /*
 104  * Declare a service with the class CFrontEndService, the names "FS" (short) and "frontend_service" (long).
 105  * The port is dynamicaly find and there s no callback array.
 106  */
 107 NLNET_SERVICE_MAIN (CFrontEndService, "FS", "frontend_service", 0, EmptyCallbackArray, "", "")