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/***************************************************************************

 *   Copyright (C) November 26, 2008, 3:00 PM by Mattias Runge             *

 *   mattias@runge.se                                                      *

 *   main.cpp                                                              *

 *                                                                         *

 *   This program is free software; you can redistribute it and/or modify  *

 *   it under the terms of the GNU General Public License as published by  *

 *   the Free Software Foundation; either version 2 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 General Public License for more details.                          *

 *                                                                         *

 *   You should have received a copy of the GNU General Public License     *

 *   along with this program; if not, write to the                         *

 *   Free Software Foundation, Inc.,                                       *

 *   59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *

 ***************************************************************************/

using namespace std;

#include <stdlib.h>

#include <iostream>

#include <signal.h>

#include "version.h"

#include "Tools/tools.h"

#include "SyslogStream/syslogstream.h"

#include "Settings/settings.h"

#include "CanNet/cannetmanager.h"

#include "Socket/asyncsocket.h"

#include "VM/virtualmachine.h"

#include "CanNet/candebug.h"

int cleanUp();

void handler(int status);

int main(int argc, char** argv)

{

	signal(SIGTERM, handler);

	signal(SIGINT, handler);

	signal(SIGQUIT, handler);

	signal(SIGABRT, handler);

	signal(SIGPIPE, handler);

	SyslogStream &slog = SyslogStream::getInstance();

	slog << "Atom " + ftos(VERSION) + " starting...\n";

	slog << "Written by Mattias Runge 2008\n\n";

	if (file_exists("/etc/atom.conf"))

	{

		if (!Settings::read("/etc/atom.conf"))

		{

			return cleanUp();

		}

	}

	else

	{

		if (!Settings::read("atom.conf"))

		{

			return cleanUp();

		}

	}

	VirtualMachine &vm = VirtualMachine::getInstance();

	vm.start();

	CanDebug &canDebug = CanDebug::getInstance();

	canDebug.start();

	if (Settings::get("DaemonMode") == "yes")

	{

		slog << "Entering daemon mode...\n";

		if (daemon(0, 0) == -1)

		{

			slog << "Could not enter daemon mode. Exiting...\n";

			return cleanUp();

		}

	}

	CanNetManager &canMan = CanNetManager::getInstance();

	canMan.openChannel();

	return cleanUp();

}

int cleanUp()

{

	SyslogStream &slog = SyslogStream::getInstance();

	slog << "\n";

	slog << "Goodbye!\n";

	CanDebug::deleteInstance();

	CanNetManager::deleteInstance();

	VirtualMachine::deleteInstance();

	SyslogStream::deleteInstance();

	return EXIT_SUCCESS;

}

void handler(int status)

{

	//cout << "In the handler function. Status: " << status << endl;

/*

	cout << "SIGTERM: " << SIGTERM << endl;

	cout << "SIGINT: " << SIGINT << endl;

	cout << "SIGQUIT: " << SIGQUIT << endl;

	cout << "SIGABRT: " << SIGABRT << endl;

	cout << "SIGIO: " << SIGIO << endl;

	cout << "SIGPIPE: " << SIGPIPE << endl;

*/

	cleanUp();

	/*The SIGTERM signal tells a process to exit, so we exit. You can't make a

	process invincible by ignoreing SIGTERM as there are still the

	SIGKILL and SIGSTOP signals which you can't set a handler for (catch) or

	ignore*/

	exit(EXIT_SUCCESS);

}