120ca87015
git-svn-id: https://free-cad.svn.sourceforge.net/svnroot/free-cad/trunk@5000 e8eeb9e2-ec13-0410-a4a9-efa5cf37419d
77 lines
2.6 KiB
C++
77 lines
2.6 KiB
C++
/***************************************************************************
|
|
* (c) Jürgen Riegel (juergen.riegel@web.de) 2002 *
|
|
* *
|
|
* This file is part of the FreeCAD CAx development system. *
|
|
* *
|
|
* This program is free software; you can redistribute it and/or modify *
|
|
* it under the terms of the GNU Library General Public License (LGPL) *
|
|
* as published by the Free Software Foundation; either version 2 of *
|
|
* the License, or (at your option) any later version. *
|
|
* for detail see the LICENCE text file. *
|
|
* *
|
|
* FreeCAD 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 Library General Public License for more details. *
|
|
* *
|
|
* You should have received a copy of the GNU Library General Public *
|
|
* License along with FreeCAD; if not, write to the Free Software *
|
|
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 *
|
|
* USA *
|
|
* *
|
|
* Juergen Riegel 2002 *
|
|
***************************************************************************/
|
|
|
|
|
|
#include "PreCompiled.h"
|
|
|
|
#ifndef _PreComp_
|
|
# include <assert.h>
|
|
#endif
|
|
|
|
#include <QAtomicInt>
|
|
|
|
#include "Handle.h"
|
|
#include "Exception.h"
|
|
|
|
using namespace Base;
|
|
|
|
//**************************************************************************
|
|
// Construction/Destruction
|
|
|
|
Handled::Handled()
|
|
: _lRefCount(new QAtomicInt(0))
|
|
{
|
|
}
|
|
|
|
Handled::~Handled()
|
|
{
|
|
if ((int)(*_lRefCount) != 0)
|
|
throw Exception("Reference counter of deleted object is not zero!!!!!\n");
|
|
delete _lRefCount;
|
|
}
|
|
|
|
void Handled::ref() const
|
|
{
|
|
_lRefCount->ref();
|
|
}
|
|
|
|
void Handled::unref() const
|
|
{
|
|
assert(_lRefCount > 0);
|
|
if (!_lRefCount->deref()) {
|
|
delete this;
|
|
}
|
|
}
|
|
|
|
int Handled::getRefCount(void) const
|
|
{
|
|
return (int)(*_lRefCount);
|
|
}
|
|
|
|
const Handled& Handled::operator = (const Handled&)
|
|
{
|
|
// we must not assign _lRefCount
|
|
return *this;
|
|
}
|