ewol/Sources/etk/etkSingleton.h

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/**
*******************************************************************************
* @file etkSingleton.h
* @brief ewol : singleton system class
* @author Edouard DUPIN
* @date 04/12/2010
* @par Project
* ewol TK
*
* @par Copyright
* Copyright 2011 Edouard DUPIN, all right reserved
*
* This software is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY.
*
* Licence summary :
* You can modify and redistribute the sources code and binaries.
* You can send me the bug-fix
*
* Term of the licence in in the file licence.txt.
*
*******************************************************************************
*/
#ifndef __ETK_SINGLETON_H__
#define __ETK_SINGLETON_H__
namespace etk {
template <typename T>
class Singleton
{
protected:
// Constructeur/destructeur
Singleton() { }
~Singleton() { /*std::cout << "destroying singleton." << std::endl;*/ }
public:
// Interface publique
static T *Get()
{
if (NULL == _singleton)
{
_singleton = new T;
}
return (static_cast<T*> (_singleton));
}
static void Kill()
{
if (NULL != _singleton)
{
delete _singleton;
_singleton = NULL;
}
}
private:
// Unique instance
static T *_singleton;
};
template <typename T>
T *Singleton<T>::_singleton = NULL;
}
#endif