OpenTTD-patches/src/misc/countedobj.cpp

33 lines
955 B
C++

/* $Id$ */
/*
* This file is part of OpenTTD.
* OpenTTD 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, version 2.
* OpenTTD 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 OpenTTD. If not, see <http://www.gnu.org/licenses/>.
*/
/** @file countedobj.cpp Support for reference counted objects. */
#include "../stdafx.h"
#include "countedptr.hpp"
#include "../safeguards.h"
int32 SimpleCountedObject::AddRef()
{
return ++m_ref_cnt;
}
int32 SimpleCountedObject::Release()
{
int32 res = --m_ref_cnt;
assert(res >= 0);
if (res == 0) {
FinalRelease();
delete this;
}
return res;
}