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-/* shared.h - internal tool for refcounting -*- c++ -*-
- Copyright (C) 2003 Klarälvdalens Datakonsult AB
-
- This file is part of GPGME++.
-
- GPGME++ 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; either version 2 of the License, or
- (at your option) any later version.
-
- GPGME++ 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 GPGME; if not, write to the Free Software Foundation,
- Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#ifndef __GPGMEPP_SHARED_H__
-#define __GPGMEPP_SHARED_H__
-
-#include <cassert>
-
-namespace GpgME {
-
- class Shared {
- protected:
- Shared() : mRefCount( 0 ) {}
- virtual ~Shared() {
- assert( mRefCount <= 0 );
- }
-
- public:
- int ref() { return ++mRefCount; }
- int deref() { return unref(); }
- int unref() {
- if ( --mRefCount <= 0 ) {
- delete this;
- return 0;
- }
- return mRefCount;
- }
- int refCount() { return mRefCount; }
-
- private:
- int mRefCount;
- };
-
-}
-
-
-#endif // __GPGMEPP_SHARED_H__