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/* SPDX-License-Identifier: GPL-2.0-or-later */
#pragma once
/** \file
* \ingroup freestyle
* \brief Base Class for most shared objects (Node, Rep). Defines the addRef, release system.
* \brief Inspired by COM IUnknown system.
*/
#ifdef WITH_CXX_GUARDEDALLOC
# include "MEM_guardedalloc.h"
#endif
namespace Freestyle {
class BaseObject {
public:
inline BaseObject()
{
_ref_counter = 0;
}
virtual ~BaseObject()
{
}
/** At least makes a release on this.
* The BaseObject::destroy method must be explicitly called at the end of any overloaded destroy
*/
virtual int destroy()
{
return release();
}
/** Increments the reference counter */
inline int addRef()
{
return ++_ref_counter;
}
/** Decrements the reference counter */
inline int release()
{
if (_ref_counter) {
_ref_counter--;
}
return _ref_counter;
}
private:
unsigned _ref_counter;
#ifdef WITH_CXX_GUARDEDALLOC
MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:BaseObject")
#endif
};
} /* namespace Freestyle */
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