mirror of https://github.com/OpenTTD/OpenTTD.git
36 lines
1.0 KiB
C++
36 lines
1.0 KiB
C++
/*
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* This file is part of OpenTTD.
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* 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.
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* 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.
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* 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/>.
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*/
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/** @file countedobj.cpp Support for reference counted objects. */
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#include "../stdafx.h"
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#include "countedptr.hpp"
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#include "../safeguards.h"
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int32_t SimpleCountedObject::AddRef()
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{
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return ++m_ref_cnt;
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}
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int32_t SimpleCountedObject::Release()
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{
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int32_t res = --m_ref_cnt;
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assert(res >= 0);
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if (res == 0) {
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try {
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FinalRelease(); // may throw, for example ScriptTest/ExecMode
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} catch (...) {
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delete this;
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throw;
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}
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delete this;
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}
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return res;
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}
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