91 lines
2.9 KiB
C++
91 lines
2.9 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <apitools.hxx>
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#include <cppuhelper/typeprovider.hxx>
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#include <sal/log.hxx>
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using namespace ::com::sun::star::uno;
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using namespace ::com::sun::star::lang;
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using namespace cppu;
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using namespace osl;
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// various helper functions
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// OSubComponent
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OSubComponent::OSubComponent(Mutex& _rMutex, const Reference< XInterface > & xParent)
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:WeakComponentImplHelper(_rMutex)
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,m_xParent(xParent)
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{
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}
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OSubComponent::~OSubComponent()
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{
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m_xParent = nullptr;
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}
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// XInterface
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void OSubComponent::release() noexcept
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{
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if (osl_atomic_decrement( &m_refCount ) == 0 )
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{
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if (! rBHelper.bDisposed)
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{
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// *before* again incrementing our ref count, ensure that our weak connection point
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// will not create references to us anymore (via XAdapter::queryAdapted)
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disposeWeakConnectionPoint();
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Reference< XInterface > xHoldAlive( *this );
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// remember the parent
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Reference< XInterface > xParent;
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{
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MutexGuard aGuard( rBHelper.rMutex );
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xParent = m_xParent;
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m_xParent = nullptr;
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}
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SAL_WARN_IF( m_refCount != 1, "dbaccess.core", "OSubComponent::release: invalid ref count (before dispose)!" );
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// First dispose
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dispose();
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// only the alive ref holds the object
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SAL_WARN_IF( m_refCount != 1, "dbaccess.core", "OSubComponent::release: invalid ref count (after dispose)!" );
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// release the parent in the ~
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if (xParent.is())
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{
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MutexGuard aGuard( rBHelper.rMutex );
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m_xParent = std::move(xParent);
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}
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// destroy the object if xHoldAlive decrement the refcount to 0
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return;
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}
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}
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// restore the reference count
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osl_atomic_increment( &m_refCount );
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// as we cover the job of the WeakComponentImplHelper we use the ...
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OWeakObject::release();
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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