+ virtual CullResult cull();
+ virtual ~classbase();
+ private:
+ // uncopyable
+ classbase(const classbase&);
+ void operator=(const classbase&);
+};
+
+/** The base class for inspircd classes that provide a wrapping interface, and
+ * should only exist while being used. Prevents heap allocation.
+ */
+class CoreExport interfacebase
+{
+ public:
+ interfacebase() {}
+ private:
+ interfacebase(const interfacebase&);
+ void operator=(const interfacebase&);
+ void* operator new(size_t);
+ void operator delete(void*);
+};
+
+/** The base class for inspircd classes that support reference counting.
+ * Any objects that do not have a well-defined lifetime should inherit from
+ * this, and should be assigned to a reference<type> object to establish their
+ * lifetime.
+ *
+ * Reference objects should not hold circular references back to themselves,
+ * even indirectly; this will cause a memory leak because the count will never
+ * drop to zero.
+ *
+ * Using a normal pointer for the object is recommended if you can assure that
+ * at least one reference<> will remain as long as that pointer is used; this
+ * will avoid the slight overhead of changing the reference count.
+ */
+class CoreExport refcountbase
+{
+ mutable unsigned int refcount;
+ public:
+ refcountbase();
+ virtual ~refcountbase();
+ inline unsigned int GetReferenceCount() const { return refcount; }
+ friend class reference_base;
+ void* operator new(size_t);
+ void operator delete(void*);
+ private:
+ // uncopyable
+ refcountbase(const refcountbase&);
+ void operator=(const refcountbase&);
+};
+
+class CoreExport reference_base
+{
+ protected:
+ template<typename T> static inline unsigned int inc(T* v) { return ++(v->refcount); }
+ template<typename T> static inline unsigned int dec(T* v) { return --(v->refcount); }
+
+};
+
+template <typename T>
+class reference : public reference_base
+{
+ T* value;
+ public:
+ reference() : value(0) { }
+ reference(T* v) : value(v) { if (value) inc(value); }
+ reference(const reference<T>& v) : value(v.value) { if (value) inc(value); }
+ reference<T>& operator=(const reference<T>& other)
+ {
+ if (other.value)
+ inc(other.value);
+ this->reference::~reference();
+ value = other.value;
+ return *this;
+ }
+
+ ~reference()
+ {
+ if (value)
+ {
+ int rc = dec(value);
+ if (rc == 0)
+ delete value;
+ }
+ }
+ inline operator bool() const { return value; }
+ inline operator T*() const { return value; }
+ inline T* operator->() const { return value; }
+ inline T& operator*() const { return *value; }
+ inline bool operator<(const reference<T>& other) const { return value < other.value; }
+ inline bool operator>(const reference<T>& other) const { return value > other.value; }
+ inline bool operator==(const reference<T>& other) const { return value == other.value; }
+ inline bool operator!=(const reference<T>& other) const { return value != other.value; }
+ private:
+ void* operator new(size_t);
+ void operator delete(void*);