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55 lines
1.3 KiB
55 lines
1.3 KiB
/* shared.h - internal tool for refcounting -*- c++ -*-
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Copyright (C) 2003 Klarälvdalens Datakonsult AB
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This file is part of GPGME++.
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GPGME++ is free software; you can redistribute it and/or modify it
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under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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GPGME++ is distributed in the hope that it will be useful, but
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WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with GPGME; if not, write to the Free Software Foundation,
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Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#ifndef __GPGMEPP_SHARED_H__
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#define __GPGMEPP_SHARED_H__
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#include <cassert>
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namespace GpgME {
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class Shared {
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protected:
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Shared() : mRefCount( 0 ) {}
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virtual ~Shared() {
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assert( mRefCount <= 0 );
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}
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public:
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int ref() { return ++mRefCount; }
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int deref() { return unref(); }
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int unref() {
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if ( --mRefCount <= 0 ) {
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delete this;
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return 0;
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}
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return mRefCount;
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}
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int refCount() { return mRefCount; }
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private:
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int mRefCount;
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};
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}
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#endif // __GPGMEPP_SHARED_H__
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