object.h

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#ifndef __base_object_h
#define __base_object_h
 
#include <ext/atomicity.h>
 
#include <assert.h>
#include <lib/base/smartptr.h>
#include <lib/base/elock.h>
 
#include <lib/base/eerror.h>
 
typedef int RESULT;
 
class iObject
{
private:
    /* we don't allow the default operator here, as it would break the refcount. */
  void operator=(const iObject &);
protected:
  virtual ~iObject() { }
#ifdef SWIG
  virtual void AddRef()=0;
  virtual void Release()=0;
#endif
public:
  void operator delete(void *p) { ::operator delete(p); }
#ifndef SWIG
  virtual void AddRef()=0;
  virtual void Release()=0;
#endif
};
 
#ifndef SWIG
 
class oRefCount
{
  mutable _Atomic_word ref;
public:
  oRefCount(): ref(0) {}
 
  int operator++()
  {
    return __gnu_cxx::__exchange_and_add(&ref, 1) + 1;
  }
 
  int operator--()
  {
    return __gnu_cxx::__exchange_and_add(&ref, -1) - 1;
  }
 
  operator int() const
  {
    return __gnu_cxx::__exchange_and_add(&ref, 0);
  }
};
 
    #define DECLARE_REF(x)      \
      public: \
          void AddRef();    \
          void Release();   \
      private:\
          oRefCount ref;
 
    #define DEFINE_REF(c) \
      void c::AddRef() \
      { \
        ++ref; \
      } \
      void c::Release() \
      { \
        if (!(--ref)) \
          delete this; \
      }
 
#else  // SWIG
  #define DECLARE_REF(x) \
    private: \
      void AddRef(); \
      void Release();
#endif  // SWIG
 
#endif  // __base_object_h