77 lines
1.8 KiB
C++
77 lines
1.8 KiB
C++
/*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software Foundation,
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* Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef __FREESTYLE_BASE_OBJECT_H__
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#define __FREESTYLE_BASE_OBJECT_H__
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/** \file
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* \ingroup freestyle
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* \brief Base Class for most shared objects (Node, Rep). Defines the addRef, release system.
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* \brief Inspired by COM IUnknown system.
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*/
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#ifdef WITH_CXX_GUARDEDALLOC
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# include "MEM_guardedalloc.h"
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#endif
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namespace Freestyle {
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class BaseObject {
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public:
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inline BaseObject()
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{
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_ref_counter = 0;
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}
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virtual ~BaseObject()
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{
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}
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/*! At least makes a release on this.
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* The BaseObject::destroy method must be explicitly called at the end of any overloaded destroy
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*/
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virtual int destroy()
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{
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return release();
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}
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/*! Increments the reference counter */
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inline int addRef()
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{
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return ++_ref_counter;
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}
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/*! Decrements the reference counter */
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inline int release()
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{
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if (_ref_counter) {
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_ref_counter--;
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}
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return _ref_counter;
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}
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private:
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unsigned _ref_counter;
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#ifdef WITH_CXX_GUARDEDALLOC
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MEM_CXX_CLASS_ALLOC_FUNCS("Freestyle:BaseObject")
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#endif
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};
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} /* namespace Freestyle */
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#endif // __FREESTYLE_BASE_OBJECT_H__
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