Singleton.hh

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#ifndef SLIC_SINGLETON_HH_
#define SLIC_SINGLETON_HH_ 1
 
template<class T>
 
class Singleton {
 
    public:
 
        static T* instance();
 
        void release();
 
        Singleton();
 
        ~Singleton();
 
    private:
        static T* m_singleton;
};
 
template<class T> T* Singleton<T>::m_singleton = 0;
 
template<class T>
Singleton<T>::Singleton() {
}
 
template<class T>
Singleton<T>::~Singleton() {
}
 
template<class T>
T* Singleton<T>::instance() {
    if (m_singleton == 0) {
        m_singleton = new T;
    }
    return m_singleton;
}
 
template<class T>
void Singleton<T>::release() {
    if (m_singleton == 0)
        return;
    delete m_singleton;
    m_singleton = 0;
}
 
#endif