mirror of https://github.com/PrimeDecomp/prime.git
64 lines
1.6 KiB
C++
64 lines
1.6 KiB
C++
#ifndef _RSTL_RC_PTR
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#define _RSTL_RC_PTR
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#include "types.h"
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namespace rstl {
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class CRefData {
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public:
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CRefData(const void* ptr) : x0_ptr(ptr), x4_refCount(1) {}
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CRefData(const void* ptr, int refCount) : x0_ptr(ptr), x4_refCount(refCount) {}
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void* GetPtr() const { return const_cast< void* >(x0_ptr); }
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int GetRefCount() const { return x4_refCount; }
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int AddRef() { return ++x4_refCount; }
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int DelRef() { return --x4_refCount; }
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const void* x0_ptr;
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int x4_refCount;
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static CRefData sNull;
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};
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template < typename T >
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class rc_ptr {
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public:
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rc_ptr() : x0_refData(&CRefData::sNull) { x0_refData->AddRef(); }
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rc_ptr(const T* ptr) : x0_refData(new CRefData(ptr)) {}
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rc_ptr(const rc_ptr& other) : x0_refData(other.x0_refData) { x0_refData->AddRef(); }
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~rc_ptr() { ReleaseData(); }
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T* GetPtr() const { return static_cast< T* >(x0_refData->GetPtr()); }
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void ReleaseData();
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T* operator->() const { return GetPtr(); }
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T& operator*() const { return *GetPtr(); }
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operator bool() const { return GetPtr() != nullptr; }
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private:
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CRefData* x0_refData;
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};
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template < typename T >
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void rc_ptr< T >::ReleaseData() {
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if (x0_refData->DelRef() <= 0) {
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delete GetPtr();
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delete x0_refData;
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}
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}
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template < typename T >
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class ncrc_ptr : public rc_ptr< T > {
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public:
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ncrc_ptr() {}
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ncrc_ptr(T* ptr) : rc_ptr< T >(ptr) {}
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ncrc_ptr(const rc_ptr< T >& other) : rc_ptr< T >(other) {}
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};
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template < typename T >
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bool operator==(const rc_ptr< T >& left, const rc_ptr< T >& right) {
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return left.GetPtr() == right.GetPtr();
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}
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} // namespace rstl
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#endif // _RSTL_RC_PTR
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