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//
// Filename : BaseObject.h
// Author(s) : Stephane Grabli
// Purpose : Base Class for most shared objects (Node, Rep).
// Defines the addRef, release system.
// Inspired by COM IUnknown system.
// Date of creation : 06/02/2002
//
///////////////////////////////////////////////////////////////////////////////
//
// Copyright (C) : Please refer to the COPYRIGHT file distributed
// with this source distribution.
//
// This program is free software; you can redistribute it and/or
// modify it under the terms of the GNU General Public License
// as published by the Free Software Foundation; either version 2
// of the License, or (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
//
///////////////////////////////////////////////////////////////////////////////
#ifndef BASEOBJECT_H
# define BASEOBJECT_H
#include "FreestyleConfig.h"
class LIB_SYSTEM_EXPORT BaseObject
{
public:
inline BaseObject() {
_ref_counter = 0;
}
virtual ~BaseObject() {}
/*! At least makes a release on this.
* The BaseObject::destroy method must be
* explicitely 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;
};
#endif // BASEOBJECT_H
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