77 lines
2.6 KiB
C++
77 lines
2.6 KiB
C++
/***************************************************************************
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* Copyright (c) 2002 Jürgen Riegel <juergen.riegel@web.de> *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU Library General Public License (LGPL) *
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* as published by the Free Software Foundation; either version 2 of *
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* the License, or (at your option) any later version. *
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* for detail see the LICENCE text file. *
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* *
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* FreeCAD 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 Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with FreeCAD; if not, write to the Free Software *
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
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* USA *
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* *
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***************************************************************************/
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#include "PreCompiled.h"
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#ifndef _PreComp_
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# include <iostream>
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# include <assert.h>
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#endif
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#include <QAtomicInt>
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#include "Handle.h"
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#include "Exception.h"
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using namespace Base;
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//**************************************************************************
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// Construction/Destruction
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Handled::Handled()
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: _lRefCount(new QAtomicInt(0))
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{
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}
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Handled::~Handled()
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{
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if (static_cast<int>(*_lRefCount) != 0)
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std::cerr << "Reference counter of deleted object is not zero!!!!!" << std::endl;
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delete _lRefCount;
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}
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void Handled::ref() const
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{
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_lRefCount->ref();
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}
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void Handled::unref() const
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{
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assert(*_lRefCount > 0);
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if (!_lRefCount->deref()) {
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delete this;
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}
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}
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int Handled::getRefCount(void) const
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{
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return static_cast<int>(*_lRefCount);
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}
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const Handled& Handled::operator = (const Handled&)
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{
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// we must not assign _lRefCount
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return *this;
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}
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