RxObjectImpl.h

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// Copyright (C) 2002-2024, Open Design Alliance (the "Alliance"). 
// All rights reserved. 
// 
// This software and its documentation and related materials are owned by 
// the Alliance. The software may only be incorporated into application 
// programs owned by members of the Alliance, subject to a signed 
// Membership Agreement and Supplemental Software License Agreement with the
// Alliance. The structure and organization of this software are the valuable  
// trade secrets of the Alliance and its suppliers. The software is also 
// protected by copyright law and international treaty provisions. Application  
// programs incorporating this software must include the following statement 
// with their copyright notices:
//   
//   This application incorporates Open Design Alliance software pursuant to a license 
//   agreement with Open Design Alliance.
//   Open Design Alliance Copyright (C) 2002-2024 by Open Design Alliance. 
//   All rights reserved.
//
// By use of this software, its documentation or related materials, you 
// acknowledge and accept the above terms.
 
 
 
 
#if !defined(OdRxObjectImpl_INCLUDED_)
#define OdRxObjectImpl_INCLUDED_
 
#include "OdaCommon.h"
#include "TD_PackPush.h"
 
#include "RxObject.h"
#include "OdMutex.h"

template<class T, class TInterface = T>
class OdRxObjectImpl : public T
{
  OdRefCounter m_nRefCounter;

  OdRxObjectImpl& operator = (const OdRxObjectImpl&);

  OdRxObjectImpl(OdRxObjectImpl&&);
 
protected:
  ODRX_HEAP_OPERATORS();
 
public:
  template<typename... Args>
  OdRxObjectImpl(Args&&... args)
    : T(std::forward<Args>(args)...)
  {
    m_nRefCounter = 1;
  }

  void addRef()
  {
    ++m_nRefCounter;
  }

  void release() ODRX_NOEXCEPT
  {
                ODA_ASSERT((m_nRefCounter > 0));
                if (!(--m_nRefCounter))
                {
      delete this;
                }
  }

  long numRefs() const { return m_nRefCounter; }

  template<typename... Args>
  static OdSmartPtr<TInterface> createObject(Args&&... args)
  {
    return OdSmartPtr<TInterface>(static_cast<TInterface*>(new OdRxObjectImpl<T, TInterface>(std::forward<Args>(args)...)), kOdRxObjAttach);
  }
};
 
// VS 2013 does support arguments forwarding but does not quite support `using`
#if (defined(_MSC_VER) && (_MSC_VER > 1800)) || (defined(__cplusplus) && (__cplusplus > 199711L))
template<class T, class TInterface = T> using OdRxObjectImpl2 = OdRxObjectImpl<T, TInterface>;
#else
#define OdRxObjectImpl2 OdRxObjectImpl
#endif

#define RXIMPL_CONSTR(ClassName) OdRxObjectImpl<ClassName>::createObject()

#define ABSTRACTIMPL_CONSTR(CLASS) OdRxObjectImpl<CLASS##Impl>::createObject()
 
template<class T, class TImpl>
class OdObjectWithImpl : public T
{
protected:
#ifdef ODA_NEED_TEMP_USING
  using T::m_pImpl;
#endif
public:
  TImpl m_Impl;
  inline OdObjectWithImpl() : T(&m_Impl)
  {
  }
  inline ~OdObjectWithImpl()
  {
    m_pImpl = NULL;
  }
  static OdSmartPtr<T> createObject()
  {
    return OdSmartPtr<T>((T*)new OdObjectWithImpl<T, TImpl>, kOdRxObjAttach);
  }
};
 
#define OD_IDCAT(ID, Postf) ID##Postf
 
#define RXIMPLOBJCONSTRUCT(ClassName) OdRxObjectImpl<OdObjectWithImpl<ClassName, OD_IDCAT(ClassName,Impl)> >::createObject()
 
#define IMPLOBJCONSTRUCT(ClassName) OdObjectWithImpl<ClassName, OD_IDCAT(ClassName,Impl)>::createObject()
 
 
#include "TD_PackPop.h"
 
#endif // !defined(OdRxObjectImpl_INCLUDED_)