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  1. /***************************************************************************
  2.  *   Copyright (C) November 26, 2008, 3:00 PM by Mattias Runge             *
  3.  *   mattias@runge.se                                                      *
  4.  *   main.cpp                                                              *
  5.  *                                                                         *
  6.  *   This program is free software; you can redistribute it and/or modify  *
  7.  *   it under the terms of the GNU General Public License as published by  *
  8.  *   the Free Software Foundation; either version 2 of the License, or     *
  9.  *   (at your option) any later version.                                   *
  10.  *                                                                         *
  11.  *   This program is distributed in the hope that it will be useful,       *
  12.  *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
  13.  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
  14.  *   GNU General Public License for more details.                          *
  15.  *                                                                         *
  16.  *   You should have received a copy of the GNU General Public License     *
  17.  *   along with this program; if not, write to the                         *
  18.  *   Free Software Foundation, Inc.,                                       *
  19.  *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
  20.  ***************************************************************************/
  21.  
  22. using namespace std;
  23.  
  24. #include <stdlib.h>
  25. #include <iostream>
  26. #include <signal.h>
  27.  
  28. #include "version.h"
  29. #include "Tools/tools.h"
  30. #include "SyslogStream/syslogstream.h"
  31. #include "Settings/settings.h"
  32. #include "CanNet/cannetmanager.h"
  33. #include "Socket/asyncsocket.h"
  34. #include "VM/virtualmachine.h"
  35. #include "CanNet/candebug.h"
  36.  
  37. int cleanUp();
  38. void handler(int status);
  39.  
  40. int main(int argc, char** argv)
  41. {
  42.     signal(SIGTERM, handler);
  43.     signal(SIGINT, handler);
  44.     signal(SIGQUIT, handler);
  45.     signal(SIGABRT, handler);
  46.     signal(SIGPIPE, handler);
  47.  
  48.     SyslogStream &slog = SyslogStream::getInstance();
  49.  
  50.     slog << "Atom " + ftos(VERSION) + " starting...\n";
  51.     slog << "Written by Mattias Runge 2008\n\n";
  52.  
  53.     if (file_exists("/etc/atom.conf"))
  54.     {
  55.         if (!Settings::read("/etc/atom.conf"))
  56.         {
  57.             return cleanUp();
  58.         }
  59.     }
  60.     else
  61.     {
  62.         if (!Settings::read("atom.conf"))
  63.         {
  64.             return cleanUp();
  65.         }
  66.     }
  67.  
  68.     VirtualMachine &vm = VirtualMachine::getInstance();
  69.     vm.start();
  70.  
  71.     CanDebug &canDebug = CanDebug::getInstance();
  72.     canDebug.start();
  73.  
  74.     if (Settings::get("DaemonMode") == "yes")
  75.     {
  76.         slog << "Entering daemon mode...\n";
  77.         if (daemon(0, 0) == -1)
  78.         {
  79.             slog << "Could not enter daemon mode. Exiting...\n";
  80.             return cleanUp();
  81.         }
  82.     }
  83.  
  84.  
  85.  
  86.     CanNetManager &canMan = CanNetManager::getInstance();
  87.  
  88.     canMan.openChannel();
  89.  
  90.     return cleanUp();
  91. }
  92.  
  93. int cleanUp()
  94. {
  95.     SyslogStream &slog = SyslogStream::getInstance();
  96.  
  97.     slog << "\n";
  98.     slog << "Goodbye!\n";
  99.  
  100.     CanDebug::deleteInstance();
  101.     CanNetManager::deleteInstance();
  102.     VirtualMachine::deleteInstance();
  103.     SyslogStream::deleteInstance();
  104.  
  105.     return EXIT_SUCCESS;
  106. }
  107.  
  108. void handler(int status)
  109. {
  110.     //cout << "In the handler function. Status: " << status << endl;
  111.  
  112. /*
  113.     cout << "SIGTERM: " << SIGTERM << endl;
  114.     cout << "SIGINT: " << SIGINT << endl;
  115.     cout << "SIGQUIT: " << SIGQUIT << endl;
  116.     cout << "SIGABRT: " << SIGABRT << endl;
  117.     cout << "SIGIO: " << SIGIO << endl;
  118.     cout << "SIGPIPE: " << SIGPIPE << endl;
  119.  
  120. */
  121.     cleanUp();
  122.  
  123.     /*The SIGTERM signal tells a process to exit, so we exit. You can't make a
  124.     process invincible by ignoreing SIGTERM as there are still the
  125.     SIGKILL and SIGSTOP signals which you can't set a handler for (catch) or
  126.     ignore*/
  127.     exit(EXIT_SUCCESS);
  128. }
  129.