74 lines
2.0 KiB
C++
Executable File
74 lines
2.0 KiB
C++
Executable File
//
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// Filename : BaseObject.h
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// Author(s) : Stephane Grabli
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// Purpose : Base Class for most shared objects (Node, Rep).
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// Defines the addRef, release system.
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// Inspired by COM IUnknown system.
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// Date of creation : 06/02/2002
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//
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///////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (C) : Please refer to the COPYRIGHT file distributed
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// with this source distribution.
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//
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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
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// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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//
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///////////////////////////////////////////////////////////////////////////////
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#ifndef BASEOBJECT_H
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# define BASEOBJECT_H
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#include "FreestyleConfig.h"
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class LIB_SYSTEM_EXPORT BaseObject
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{
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public:
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inline BaseObject() {
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_ref_counter = 0;
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}
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virtual ~BaseObject() {}
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/*! At least makes a release on this.
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* The BaseObject::destroy method must be
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* explicitely called at the end of any
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* overloaded destroy
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*/
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virtual int destroy() {
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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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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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if (_ref_counter)
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_ref_counter--;
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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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};
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#endif // BASEOBJECT_H
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