104 lines
3.7 KiB
C++
104 lines
3.7 KiB
C++
#pragma once
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namespace pfc {
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class NOVTABLE refcounted_object_root
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{
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public:
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void refcount_add_ref() throw() {++m_counter;}
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void refcount_release() throw() {if (--m_counter == 0) delete this;}
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void _refcount_release_temporary() throw() {--m_counter;}//for internal use only!
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protected:
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refcounted_object_root() {}
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virtual ~refcounted_object_root() {}
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private:
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refcounter m_counter;
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};
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template<typename T>
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class refcounted_object_ptr_t {
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private:
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typedef refcounted_object_ptr_t<T> t_self;
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public:
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inline refcounted_object_ptr_t() throw() : m_ptr(NULL) {}
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inline refcounted_object_ptr_t(T* p_ptr) throw() : m_ptr(NULL) {copy(p_ptr);}
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inline refcounted_object_ptr_t(const t_self & p_source) throw() : m_ptr(NULL) {copy(p_source);}
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inline refcounted_object_ptr_t(t_self && p_source) throw() { m_ptr = p_source.m_ptr; p_source.m_ptr = NULL; }
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template<typename t_source>
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inline refcounted_object_ptr_t(t_source * p_ptr) throw() : m_ptr(NULL) {copy(p_ptr);}
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template<typename t_source>
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inline refcounted_object_ptr_t(const refcounted_object_ptr_t<t_source> & p_source) throw() : m_ptr(NULL) {copy(p_source);}
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inline ~refcounted_object_ptr_t() throw() {if (m_ptr != NULL) m_ptr->refcount_release();}
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template<typename t_source>
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inline void copy(t_source * p_ptr) throw() {
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T* torel = pfc::replace_t(m_ptr,pfc::safe_ptr_cast<T>(p_ptr));
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if (m_ptr != NULL) m_ptr->refcount_add_ref();
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if (torel != NULL) torel->refcount_release();
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}
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template<typename t_source>
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inline void copy(const refcounted_object_ptr_t<t_source> & p_source) throw() {copy(p_source.get_ptr());}
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inline const t_self & operator=(const t_self & p_source) throw() {copy(p_source); return *this;}
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inline const t_self & operator=(t_self && p_source) throw() {attach(p_source.detach()); return *this;}
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inline const t_self & operator=(T * p_ptr) throw() {copy(p_ptr); return *this;}
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template<typename t_source> inline t_self & operator=(const refcounted_object_ptr_t<t_source> & p_source) throw() {copy(p_source); return *this;}
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template<typename t_source> inline t_self & operator=(t_source * p_ptr) throw() {copy(p_ptr); return *this;}
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inline void release() throw() {
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T * temp = pfc::replace_t(m_ptr,(T*)NULL);
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if (temp != NULL) temp->refcount_release();
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}
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inline T& operator*() const throw() {return *m_ptr;}
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inline T* operator->() const throw() {PFC_ASSERT(m_ptr != NULL);return m_ptr;}
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inline T* get_ptr() const throw() {return m_ptr;}
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inline bool is_valid() const throw() {return m_ptr != NULL;}
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inline bool is_empty() const throw() {return m_ptr == NULL;}
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inline bool operator==(const t_self & p_item) const throw() {return m_ptr == p_item.get_ptr();}
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inline bool operator!=(const t_self & p_item) const throw() {return m_ptr != p_item.get_ptr();}
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inline bool operator>(const t_self & p_item) const throw() {return m_ptr > p_item.get_ptr();}
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inline bool operator<(const t_self & p_item) const throw() {return m_ptr < p_item.get_ptr();}
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inline T* _duplicate_ptr() const throw()//should not be used ! temporary !
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{
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if (m_ptr) m_ptr->refcount_add_ref();
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return m_ptr;
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}
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inline T* detach() throw() {//should not be used ! temporary !
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T* ret = m_ptr;
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m_ptr = 0;
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return ret;
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}
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inline void attach(T * p_ptr) throw() {//should not be used ! temporary !
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release();
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m_ptr = p_ptr;
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}
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inline t_self & operator<<(t_self & p_source) throw() {attach(p_source.detach());return *this;}
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inline t_self & operator>>(t_self & p_dest) throw() {p_dest.attach(detach());return *this;}
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private:
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T* m_ptr;
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};
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template<typename T>
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class traits_t<refcounted_object_ptr_t<T> > : public traits_default {
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public:
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enum { realloc_safe = true, constructor_may_fail = false};
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};
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}; |