instance_tracker.h

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namespace pfc {
    template<typename t_object>
    class instance_tracker_server_t {
    public:
        void add(t_object * p_object) {
            m_list.add_item(p_object);
        }
        void remove(t_object * p_object) {
            m_list.remove_item(p_object);
        }

        t_size get_count() const {return m_list.get_count();}
        t_object * get_item(t_size p_index) {return m_list[p_index];}
        t_object * operator[](t_size p_index) {return m_list[p_index];}

    private:
        ptr_list_hybrid_t<t_object,4> m_list;
    };


    template<typename t_object,instance_tracker_server_t<t_object> & p_server>
    class instance_tracker_client_t {
    public:
        instance_tracker_client_t(t_object* p_ptr) : m_ptr(NULL), m_added(false) {initialize(p_ptr);}
        instance_tracker_client_t() : m_ptr(NULL), m_added(false) {}

        void initialize(t_object * p_ptr) {
            uninitialize();
            p_server.add(p_ptr);
            m_ptr = p_ptr;
            m_added = true;
        }

        void uninitialize() {
            if (m_added) {
                p_server.remove(m_ptr);
                m_ptr = NULL;
                m_added = false;
            }
        }

        ~instance_tracker_client_t() {
            uninitialize();
        }
    private:
        bool m_added;
        t_object * m_ptr;
    };
}