icinga2/lib/base/singleton.hpp

48 lines
1.7 KiB
C++

/******************************************************************************
* Icinga 2 *
* Copyright (C) 2012-2018 Icinga Development Team (https://icinga.com/) *
* *
* 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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. *
******************************************************************************/
#ifndef SINGLETON_H
#define SINGLETON_H
#include "base/i2-base.hpp"
#include <boost/thread/mutex.hpp>
namespace icinga
{
/**
* A singleton.
*
* @ingroup base
*/
template<typename T>
class Singleton
{
public:
static T *GetInstance()
{
static T instance;
return &instance;
}
};
}
#endif /* SINGLETON_H */