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#ifndef REUSABLE_OBJECT_FACTORY
#define REUSABLE_OBJECT_FACTORY
#include <list>
#include <iostream>
#include <typeinfo>
template<class Object> class ReusableObjectFactory {
public:
ReusableObjectFactory() {}
~ReusableObjectFactory() {}
static Object* Instance();
static void Release(Object*);
static void Shutdown();
static void Free();
private:
static std::list<Object*> free;
static std::list<Object*> objects;
};
template<class Object>
std::list<Object*> ReusableObjectFactory<Object>::free;
template<class Object>
std::list<Object*> ReusableObjectFactory<Object>::objects;
template<class Object>
void ReusableObjectFactory<Object>::Shutdown() {
/*
std::cout << "ReusableObjectFactory<"
<< typeid(Object).name()
<< ">::Shutdown Releasing "
<< (objects.size())
<< " objects, "
<< (objects.size()*sizeof(Object))
<< " bytes"
<< std::endl;
*/
typename std::list<Object*>::iterator i;
for (i = objects.begin(); i != objects.end(); ++i)
delete *i;
objects.clear();
free.clear();
}
template<class Object>
void ReusableObjectFactory<Object>::Free() {
/*
std::cout << "ReusableObjectFactory<"
<< typeid(Object).name()
<< ">::Free Releasing "
<< (free.size())
<< " objects, "
<< (free.size()*sizeof(Object))
<< " bytes"
<< std::endl;
*/
typename std::list<Object*>::iterator i;
for (i = free.begin(); i != free.end(); ++i) {
objects.remove(*i);
delete *i;
}
free.clear();
}
template<class Object>
Object* ReusableObjectFactory<Object>::Instance() {
Object* object;
if (free.empty()) {
object = new Object();
objects.push_back(object);
}
else {
object = free.front();
free.pop_front();
}
//std::cout << "ReusableObjectFactory<"
// << typeid(Object).name()
// << ">::Instance "
// << (*object)
// << std::endl;
return object;
}
template<class Object>
void ReusableObjectFactory<Object>::Release(Object* object) {
free.push_back(object);
//std::cout << "ReusableObjectFactory<"
// << typeid(Object).name()
// << ">::Release "
// << (*object)
// << std::endl;
}
#endif
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