src/Resource/singleton.h

Go to the documentation of this file.

#ifndef SINGLETON_H
#define SINGLETON_H

#include "Assert.h"

extern bool g_shutdown; 
template <class T> class Singleton
{       
        static T* ms_instance; 
public:
        static T* Get();

        static void Free();

protected:
        Singleton();

        virtual ~Singleton();
};

template <class T> T* Singleton<T>::ms_instance = 0;

template <class T> Singleton<T>::Singleton()
{
}

template <class T> Singleton<T>::~Singleton()
{
}

template <class T> T* Singleton<T>::Get()
{
        Assert(!g_shutdown);
        
        if(!ms_instance)
                ms_instance = new T();
        return ms_instance;
}

template <class T> void Singleton<T>::Free()
{
        if( ms_instance )
        {
                delete ms_instance;
                ms_instance = 0;
        }
}

#endif // SINGLETON_H

---