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https://github.com/FirebirdSQL/firebird.git
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59 lines
1.3 KiB
C
59 lines
1.3 KiB
C
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/*
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* The contents of this file are subject to the Initial
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* Developer's Public License Version 1.0 (the "License");
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* you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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* http://www.ibphoenix.com/main.nfs?a=ibphoenix&page=ibp_idpl.
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*
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* Software distributed under the License is distributed AS IS,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied.
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* See the License for the specific language governing rights
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* and limitations under the License.
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*
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* The Original Code was created by Vlad Horsun
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* for the Firebird Open Source RDBMS project.
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*
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* Copyright (c) 2008 Vlad Horsun <hvlad@users.sf.net>
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* and all contributors signed below.
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*
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* All Rights Reserved.
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* Contributor(s): ______________________________________.
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*
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* Dmitry Yemanov <dimitr@users.sf.net>
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*/
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#ifndef COMMON_REF_COUNTED_H
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#define COMMON_REF_COUNTED_H
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#include "../common/classes/fb_atomic.h"
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namespace Firebird
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{
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class RefCounted
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{
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public:
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virtual int addRef()
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{
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return ++m_refCnt;
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}
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virtual int release()
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{
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const int refCnt = --m_refCnt;
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if (!refCnt)
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delete this;
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return refCnt;
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}
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protected:
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RefCounted() : m_refCnt(0) {}
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virtual ~RefCounted() {}
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private:
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Firebird::AtomicCounter m_refCnt;
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};
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}; // namespace
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#endif // COMMON_REF_COUNTED_H
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