144 lines
4.5 KiB
C++
144 lines
4.5 KiB
C++
/*************************************************************************
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*
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* $RCSfile: autoobject.hxx,v $
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*
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* $Revision: 1.1 $
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*
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* last change: $Author: jb $ $Date: 2002-03-28 08:41:26 $
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*
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* The Contents of this file are made available subject to the terms of
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* either of the following licenses
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*
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* - GNU Lesser General Public License Version 2.1
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* - Sun Industry Standards Source License Version 1.1
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*
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* Sun Microsystems Inc., October, 2000
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2000 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but 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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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*
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* Sun Industry Standards Source License Version 1.1
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* =================================================
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* The contents of this file are subject to the Sun Industry Standards
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* Source License Version 1.1 (the "License"); You may not use this file
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* except in compliance with the License. You may obtain a copy of the
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* License at http://www.openoffice.org/license.html.
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*
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* Software provided under this License is provided on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
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* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
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* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
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* See the License for the specific provisions governing your rights and
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* obligations concerning the Software.
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*
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* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
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*
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* Copyright: 2000 by Sun Microsystems, Inc.
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*
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* All Rights Reserved.
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*
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* Contributor(s): _______________________________________
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*
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*
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************************************************************************/
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#ifndef CONFIGMGR_AUTOOBJECT_HXX
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#define CONFIGMGR_AUTOOBJECT_HXX
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#ifndef CONFIGMGR_UTILITY_HXX_
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#include "utility.hxx"
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#endif
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#ifndef _OSL_MUTEX_HXX_
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#include <osl/mutex.hxx>
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#endif
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namespace configmgr
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{
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////////////////////////////////////////////////////////////////////////////////
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using ::rtl::OUString;
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//-----------------------------------------------------------------------------
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template < class Object >
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class AutoObject : Noncopyable
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{
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public:
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typedef Object object_type;
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typedef Object * Ptr;
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public:
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AutoObject() : m_pObject(NULL) {}
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AutoObject(Object * _obj) : m_pObject(_obj) {}
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~AutoObject() { delete m_pObject; }
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bool is() const;
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Ptr get() const;
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Ptr getOrCreate();
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osl::Mutex & mutex() const { return m_aMutex; }
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private:
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Ptr internalCreate();
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private:
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mutable osl::Mutex m_aMutex;
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Ptr m_pObject;
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};
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//-----------------------------------------------------------------------------
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template < class Object >
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inline
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Object * AutoObject<Object>::get() const
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{
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// osl::MutexGuard aGuard(m_aMutex);
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return m_pObject;
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}
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//-----------------------------------------------------------------------------
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template < class Object >
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inline
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bool AutoObject<Object>::is() const
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{
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return get() != NULL;
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}
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//-----------------------------------------------------------------------------
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template < class Object >
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Object * AutoObject<Object>::getOrCreate()
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{
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Object * p = get();
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return p ? p : internalCreate();
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}
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//-----------------------------------------------------------------------------
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template < class Object >
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Object * AutoObject<Object>::internalCreate()
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{
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osl::MutexGuard aGuard(m_aMutex);
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if (m_pObject == NULL)
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m_pObject = new Object();
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return m_pObject;
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}
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//-----------------------------------------------------------------------------
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////////////////////////////////////////////////////////////////////////////////
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} // namespace configmgr
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#endif
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