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Diffstat (limited to 'connectivity/source/inc/OSubComponent.hxx')
| -rw-r--r-- | connectivity/source/inc/OSubComponent.hxx | 135 |
1 files changed, 135 insertions, 0 deletions
diff --git a/connectivity/source/inc/OSubComponent.hxx b/connectivity/source/inc/OSubComponent.hxx new file mode 100644 index 000000000000..da7f1f48bada --- /dev/null +++ b/connectivity/source/inc/OSubComponent.hxx @@ -0,0 +1,135 @@ +/************************************************************************* + * + * $RCSfile: OSubComponent.hxx,v $ + * + * $Revision: 1.1.1.1 $ + * + * last change: $Author: hr $ $Date: 2000-09-18 16:14:24 $ + * + * The Contents of this file are made available subject to the terms of + * either of the following licenses + * + * - GNU Lesser General Public License Version 2.1 + * - Sun Industry Standards Source License Version 1.1 + * + * Sun Microsystems Inc., October, 2000 + * + * GNU Lesser General Public License Version 2.1 + * ============================================= + * Copyright 2000 by Sun Microsystems, Inc. + * 901 San Antonio Road, Palo Alto, CA 94303, USA + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License version 2.1, as published by the Free Software Foundation. + * + * This library 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * + * Sun Industry Standards Source License Version 1.1 + * ================================================= + * The contents of this file are subject to the Sun Industry Standards + * Source License Version 1.1 (the "License"); You may not use this file + * except in compliance with the License. You may obtain a copy of the + * License at http://www.openoffice.org/license.html. + * + * Software provided under this License is provided on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, + * WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS, + * MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING. + * See the License for the specific provisions governing your rights and + * obligations concerning the Software. + * + * The Initial Developer of the Original Code is: Sun Microsystems, Inc. + * + * Copyright: 2000 by Sun Microsystems, Inc. + * + * All Rights Reserved. + * + * Contributor(s): _______________________________________ + * + * + ************************************************************************/ +#ifndef _CONNECTIVITY_OSUBCOMPONENT_HXX_ +#define _CONNECTIVITY_OSUBCOMPONENT_HXX_ + +#ifndef _CPPUHELPER_WEAK_HXX_ +#include <cppuhelper/Weak.hxx> +#endif + +namespace connectivity +{ + + //************************************************************ + // OSubComponent + //************************************************************ + template <class T > class OSubComponent + { + protected: + // the parent must support the tunnel implementation + ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > m_xParent; + T* m_pChildImpl; + + public: + OSubComponent(const ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >& _xParent) : m_xParent(_xParent) + { + m_pChildImpl = (T*)this; + } + + + protected: + void dispose_ChildImpl() + { + ::osl::MutexGuard aGuard( m_pChildImpl->rBHelper.rMutex ); + m_xParent = NULL; + } + void relase_ChildImpl() + { + if (osl_decrementInterlockedCount( &m_pChildImpl->m_refCount ) == 0) + { + if (! m_pChildImpl->rBHelper.bDisposed) + { + ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > xHoldAlive( *m_pChildImpl ); + + // remember the parent + ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface > xParent; + { + ::osl::MutexGuard aGuard( m_pChildImpl->rBHelper.rMutex ); + xParent = m_xParent; + m_xParent = NULL; + } + + // First dispose + m_pChildImpl->dispose(); + + // only the alive ref holds the object + OSL_ASSERT( m_pChildImpl->m_refCount == 1 ); + + // release the parent in the ~ + if (xParent.is()) + { + ::osl::MutexGuard aGuard( m_pChildImpl->rBHelper.rMutex ); + m_xParent = xParent; + } + + // destroy the object if xHoldAlive decrement the refcount to 0 + return; + } + } + // restore the reference count + osl_incrementInterlockedCount( &m_pChildImpl->m_refCount ); + // as we cover the job of the componenthelper we use the ... + // ((::cppu::OWeakObject*)m_pChildImpl)->release(); + } + }; +} +#endif // _CONNECTIVITY_OSUBCOMPONENT_HXX_ + |