e57314f61f
since most of the time we don’t need a heavyweight uno::Sequence. Adds a new method getElementsAsVector(). Change-Id: I9e72bef0c0c723ffd0dd7d4152db5baec6784a7a Reviewed-on: https://gerrit.libreoffice.org/15747 Reviewed-by: Noel Grandin <noelgrandin@gmail.com> Tested-by: Noel Grandin <noelgrandin@gmail.com>
666 lines
20 KiB
C++
666 lines
20 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 <cppuhelper/interfacecontainer.hxx>
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#include <cppuhelper/queryinterface.hxx>
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#include <cppuhelper/propshlp.hxx>
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#include <osl/diagnose.h>
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#include <osl/mutex.hxx>
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#include <memory>
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#include <com/sun/star/lang/XEventListener.hpp>
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#include <iterator>
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using namespace osl;
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using namespace com::sun::star::uno;
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using namespace com::sun::star::lang;
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namespace cppu
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{
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#ifdef _MSC_VER
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#pragma warning( disable: 4786 )
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#endif
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OInterfaceIteratorHelper::OInterfaceIteratorHelper( OInterfaceContainerHelper & rCont_ )
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: rCont( rCont_ )
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{
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MutexGuard aGuard( rCont.rMutex );
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if( rCont.bInUse )
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// worst case, two iterators at the same time
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rCont.copyAndResetInUse();
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bIsList = rCont_.bIsList;
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aData = rCont_.aData;
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if( bIsList )
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{
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rCont.bInUse = sal_True;
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nRemain = aData.pAsVector->size();
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}
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else if( aData.pAsInterface )
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{
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aData.pAsInterface->acquire();
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nRemain = 1;
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}
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else
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nRemain = 0;
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}
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OInterfaceIteratorHelper::~OInterfaceIteratorHelper()
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{
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bool bShared;
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{
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MutexGuard aGuard( rCont.rMutex );
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// bResetInUse protect the iterator against recursion
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bShared = aData.pAsVector == rCont.aData.pAsVector && rCont.bIsList;
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if( bShared )
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{
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OSL_ENSURE( rCont.bInUse, "OInterfaceContainerHelper must be in use" );
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rCont.bInUse = sal_False;
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}
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}
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if( !bShared )
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{
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if( bIsList )
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// Sequence owned by the iterator
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delete aData.pAsVector;
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else if( aData.pAsInterface )
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// Interface is acquired by the iterator
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aData.pAsInterface->release();
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}
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}
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XInterface * OInterfaceIteratorHelper::next()
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{
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if( nRemain )
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{
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nRemain--;
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if( bIsList )
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return (*aData.pAsVector)[nRemain].get();
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else if( aData.pAsInterface )
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return aData.pAsInterface;
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}
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// exception
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return 0;
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}
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void OInterfaceIteratorHelper::remove()
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{
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if( bIsList )
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{
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OSL_ASSERT( nRemain >= 0 &&
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nRemain < static_cast<sal_Int32>(aData.pAsVector->size()) );
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XInterface * p = (*aData.pAsVector)[nRemain].get();
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rCont.removeInterface( * reinterpret_cast< const Reference< XInterface > * >( &p ) );
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}
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else
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{
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OSL_ASSERT( 0 == nRemain );
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rCont.removeInterface( * reinterpret_cast< const Reference< XInterface > * >(&aData.pAsInterface));
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}
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}
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OInterfaceContainerHelper::OInterfaceContainerHelper( Mutex & rMutex_ )
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: rMutex( rMutex_ )
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, bInUse( sal_False )
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, bIsList( sal_False )
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{
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}
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OInterfaceContainerHelper::~OInterfaceContainerHelper()
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{
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OSL_ENSURE( !bInUse, "~OInterfaceContainerHelper but is in use" );
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if( bIsList )
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delete aData.pAsVector;
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else if( aData.pAsInterface )
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aData.pAsInterface->release();
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}
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sal_Int32 OInterfaceContainerHelper::getLength() const
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{
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MutexGuard aGuard( rMutex );
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if( bIsList )
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return aData.pAsVector->size();
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else if( aData.pAsInterface )
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return 1;
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return 0;
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}
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std::vector< Reference<XInterface> > OInterfaceContainerHelper::getElementsAsVector() const
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{
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MutexGuard aGuard( rMutex );
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if( bIsList )
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return *aData.pAsVector;
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else if( aData.pAsInterface )
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{
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Reference<XInterface> x( aData.pAsInterface );
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return { x };
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}
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return std::vector< Reference< XInterface > >();
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}
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css::uno::Sequence< Reference<XInterface> > OInterfaceContainerHelper::getElements() const
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{
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MutexGuard aGuard( rMutex );
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if( bIsList )
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return css::uno::Sequence< Reference<XInterface> >( aData.pAsVector->data(), static_cast<sal_Int32>(aData.pAsVector->size()) );
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else if( aData.pAsInterface )
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{
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Reference<XInterface> x( aData.pAsInterface );
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return Sequence< Reference< XInterface > >( &x, 1 );
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}
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return Sequence< Reference< XInterface > >();
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}
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void OInterfaceContainerHelper::copyAndResetInUse()
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{
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OSL_ENSURE( bInUse, "OInterfaceContainerHelper not in use" );
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if( bInUse )
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{
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// this should be the worst case. If a iterator is active
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// and a new Listener is added.
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if( bIsList )
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aData.pAsVector = new std::vector< Reference< XInterface > >( *aData.pAsVector );
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else if( aData.pAsInterface )
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aData.pAsInterface->acquire();
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bInUse = sal_False;
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}
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}
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sal_Int32 OInterfaceContainerHelper::addInterface( const Reference<XInterface> & rListener )
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{
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OSL_ASSERT( rListener.is() );
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MutexGuard aGuard( rMutex );
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if( bInUse )
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copyAndResetInUse();
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if( bIsList )
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{
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aData.pAsVector->push_back( rListener );
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return aData.pAsVector->size();
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}
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else if( aData.pAsInterface )
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{
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std::vector< Reference< XInterface > > * pSeq = new std::vector< Reference< XInterface > >( 2 );
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(*pSeq)[0] = aData.pAsInterface;
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(*pSeq)[1] = rListener;
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aData.pAsInterface->release();
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aData.pAsVector = pSeq;
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bIsList = sal_True;
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return 2;
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}
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else
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{
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aData.pAsInterface = rListener.get();
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if( rListener.is() )
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rListener->acquire();
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return 1;
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}
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}
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sal_Int32 OInterfaceContainerHelper::removeInterface( const Reference<XInterface> & rListener )
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{
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OSL_ASSERT( rListener.is() );
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MutexGuard aGuard( rMutex );
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if( bInUse )
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copyAndResetInUse();
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if( bIsList )
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{
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// It is not valid to compare the pointer directly, but it's faster.
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bool bFound = false;
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for( auto it = std::begin(*aData.pAsVector); it != std::end(*aData.pAsVector); ++it )
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{
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if( (*it).get() == rListener.get() )
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{
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aData.pAsVector->erase(it);
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bFound = true;
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break;
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}
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}
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if (!bFound)
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{
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// interface not found, use the correct compare method
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for( auto it = std::begin(*aData.pAsVector); it != std::end(*aData.pAsVector); ++it )
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{
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if( *it == rListener )
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{
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aData.pAsVector->erase(it);
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break;
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}
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}
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}
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if( aData.pAsVector->size() == 1 )
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{
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XInterface * p = (*aData.pAsVector)[0].get();
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p->acquire();
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delete aData.pAsVector;
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aData.pAsInterface = p;
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bIsList = sal_False;
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return 1;
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}
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else
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return aData.pAsVector->size();
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}
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else if( aData.pAsInterface && Reference<XInterface>( aData.pAsInterface ) == rListener )
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{
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aData.pAsInterface->release();
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aData.pAsInterface = 0;
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}
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return aData.pAsInterface ? 1 : 0;
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}
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void OInterfaceContainerHelper::disposeAndClear( const EventObject & rEvt )
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{
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ClearableMutexGuard aGuard( rMutex );
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OInterfaceIteratorHelper aIt( *this );
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// Release container, in case new entries come while disposing
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OSL_ENSURE( !bIsList || bInUse, "OInterfaceContainerHelper not in use" );
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if( !bIsList && aData.pAsInterface )
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aData.pAsInterface->release();
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// set the member to null, use the iterator to delete the values
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aData.pAsInterface = NULL;
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bIsList = sal_False;
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bInUse = sal_False;
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aGuard.clear();
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while( aIt.hasMoreElements() )
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{
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try
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{
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Reference<XEventListener > xLst( aIt.next(), UNO_QUERY );
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if( xLst.is() )
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xLst->disposing( rEvt );
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}
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catch ( RuntimeException & )
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{
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// be robust, if e.g. a remote bridge has disposed already.
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// there is no way to delegate the error to the caller :o(.
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}
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}
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}
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void OInterfaceContainerHelper::clear()
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{
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ClearableMutexGuard aGuard( rMutex );
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OInterfaceIteratorHelper aIt( *this );
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// Release container, in case new entries come while disposing
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OSL_ENSURE( !bIsList || bInUse, "OInterfaceContainerHelper not in use" );
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if( !bIsList && aData.pAsInterface )
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aData.pAsInterface->release();
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// set the member to null, use the iterator to delete the values
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aData.pAsInterface = 0;
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bIsList = sal_False;
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bInUse = sal_False;
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// release mutex before aIt destructor call
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aGuard.clear();
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}
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// specialized class for type
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typedef ::std::vector< std::pair < Type , void* > > t_type2ptr;
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OMultiTypeInterfaceContainerHelper::OMultiTypeInterfaceContainerHelper( Mutex & rMutex_ )
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: rMutex( rMutex_ )
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{
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m_pMap = new t_type2ptr();
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}
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OMultiTypeInterfaceContainerHelper::~OMultiTypeInterfaceContainerHelper()
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{
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t_type2ptr * pMap = static_cast<t_type2ptr *>(m_pMap);
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t_type2ptr::iterator iter = pMap->begin();
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t_type2ptr::iterator end = pMap->end();
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while( iter != end )
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{
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delete static_cast<OInterfaceContainerHelper*>((*iter).second);
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(*iter).second = 0;
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++iter;
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}
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delete pMap;
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}
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Sequence< Type > OMultiTypeInterfaceContainerHelper::getContainedTypes() const
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{
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t_type2ptr * pMap = static_cast<t_type2ptr *>(m_pMap);
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t_type2ptr::size_type nSize;
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::osl::MutexGuard aGuard( rMutex );
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nSize = pMap->size();
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if( nSize )
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{
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::com::sun::star::uno::Sequence< Type > aInterfaceTypes( nSize );
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Type * pArray = aInterfaceTypes.getArray();
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t_type2ptr::iterator iter = pMap->begin();
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t_type2ptr::iterator end = pMap->end();
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sal_Int32 i = 0;
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while( iter != end )
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{
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// are interfaces added to this container?
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if( static_cast<OInterfaceContainerHelper*>((*iter).second)->getLength() )
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// yes, put the type in the array
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pArray[i++] = (*iter).first;
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++iter;
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}
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if( (t_type2ptr::size_type)i != nSize ) {
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// may be empty container, reduce the sequence to the right size
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aInterfaceTypes = ::com::sun::star::uno::Sequence< Type >( pArray, i );
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}
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return aInterfaceTypes;
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}
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return ::com::sun::star::uno::Sequence< Type >();
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}
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static t_type2ptr::iterator findType(t_type2ptr *pMap, const Type & rKey )
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{
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t_type2ptr::iterator iter = pMap->begin();
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t_type2ptr::iterator end = pMap->end();
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while( iter != end )
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{
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if (iter->first == rKey)
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break;
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++iter;
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}
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return iter;
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}
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OInterfaceContainerHelper * OMultiTypeInterfaceContainerHelper::getContainer( const Type & rKey ) const
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{
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::osl::MutexGuard aGuard( rMutex );
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t_type2ptr * pMap = static_cast<t_type2ptr *>(m_pMap);
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t_type2ptr::iterator iter = findType( pMap, rKey );
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if( iter != pMap->end() )
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return static_cast<OInterfaceContainerHelper*>((*iter).second);
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return 0;
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}
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sal_Int32 OMultiTypeInterfaceContainerHelper::addInterface(
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const Type & rKey, const Reference< XInterface > & rListener )
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{
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::osl::MutexGuard aGuard( rMutex );
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t_type2ptr * pMap = static_cast<t_type2ptr *>(m_pMap);
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t_type2ptr::iterator iter = findType( pMap, rKey );
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if( iter == pMap->end() )
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{
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OInterfaceContainerHelper * pLC = new OInterfaceContainerHelper( rMutex );
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pMap->push_back(std::pair<Type, void*>(rKey, pLC));
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return pLC->addInterface( rListener );
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}
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else
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return static_cast<OInterfaceContainerHelper*>((*iter).second)->addInterface( rListener );
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}
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sal_Int32 OMultiTypeInterfaceContainerHelper::removeInterface(
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const Type & rKey, const Reference< XInterface > & rListener )
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{
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::osl::MutexGuard aGuard( rMutex );
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// search container with id nUik
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t_type2ptr * pMap = static_cast<t_type2ptr *>(m_pMap);
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t_type2ptr::iterator iter = findType( pMap, rKey );
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// container found?
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if( iter != pMap->end() )
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return static_cast<OInterfaceContainerHelper*>((*iter).second)->removeInterface( rListener );
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// no container with this id. Always return 0
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return 0;
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}
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void OMultiTypeInterfaceContainerHelper::disposeAndClear( const EventObject & rEvt )
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{
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t_type2ptr::size_type nSize = 0;
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std::unique_ptr<OInterfaceContainerHelper *[]> ppListenerContainers;
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{
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::osl::MutexGuard aGuard( rMutex );
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t_type2ptr * pMap = static_cast<t_type2ptr *>(m_pMap);
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nSize = pMap->size();
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if( nSize )
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{
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typedef OInterfaceContainerHelper* ppp;
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ppListenerContainers.reset(new ppp[nSize]);
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//ppListenerContainers = new (ListenerContainer*)[nSize];
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t_type2ptr::iterator iter = pMap->begin();
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t_type2ptr::iterator end = pMap->end();
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t_type2ptr::size_type i = 0;
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while( iter != end )
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{
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ppListenerContainers[i++] = static_cast<OInterfaceContainerHelper*>((*iter).second);
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++iter;
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}
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}
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}
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// create a copy, because do not fire event in a guarded section
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for( t_type2ptr::size_type i = 0;
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i < nSize; i++ )
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{
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if( ppListenerContainers[i] )
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ppListenerContainers[i]->disposeAndClear( rEvt );
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}
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}
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void OMultiTypeInterfaceContainerHelper::clear()
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{
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::osl::MutexGuard aGuard( rMutex );
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t_type2ptr * pMap = static_cast<t_type2ptr *>(m_pMap);
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t_type2ptr::iterator iter = pMap->begin();
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t_type2ptr::iterator end = pMap->end();
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while( iter != end )
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{
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static_cast<OInterfaceContainerHelper*>((*iter).second)->clear();
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++iter;
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}
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}
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// specialized class for long
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typedef ::std::vector< std::pair < sal_Int32 , void* > > t_long2ptr;
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static t_long2ptr::iterator findLong(t_long2ptr *pMap, sal_Int32 nKey )
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{
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t_long2ptr::iterator iter = pMap->begin();
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t_long2ptr::iterator end = pMap->end();
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while( iter != end )
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{
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if (iter->first == nKey)
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break;
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++iter;
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}
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return iter;
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}
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OMultiTypeInterfaceContainerHelperInt32::OMultiTypeInterfaceContainerHelperInt32( Mutex & rMutex_ )
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: m_pMap( NULL )
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, rMutex( rMutex_ )
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{
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// delay pMap allocation until necessary.
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}
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OMultiTypeInterfaceContainerHelperInt32::~OMultiTypeInterfaceContainerHelperInt32()
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{
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if (!m_pMap)
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return;
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t_long2ptr * pMap = static_cast<t_long2ptr *>(m_pMap);
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t_long2ptr::iterator iter = pMap->begin();
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t_long2ptr::iterator end = pMap->end();
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while( iter != end )
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|
{
|
|
delete static_cast<OInterfaceContainerHelper*>((*iter).second);
|
|
(*iter).second = 0;
|
|
++iter;
|
|
}
|
|
delete pMap;
|
|
}
|
|
|
|
Sequence< sal_Int32 > OMultiTypeInterfaceContainerHelperInt32::getContainedTypes() const
|
|
{
|
|
t_long2ptr * pMap = static_cast<t_long2ptr *>(m_pMap);
|
|
t_long2ptr::size_type nSize;
|
|
|
|
::osl::MutexGuard aGuard( rMutex );
|
|
nSize = pMap ? pMap->size() : 0;
|
|
if( nSize )
|
|
{
|
|
::com::sun::star::uno::Sequence< sal_Int32 > aInterfaceTypes( nSize );
|
|
sal_Int32 * pArray = aInterfaceTypes.getArray();
|
|
|
|
t_long2ptr::iterator iter = pMap->begin();
|
|
t_long2ptr::iterator end = pMap->end();
|
|
|
|
sal_Int32 i = 0;
|
|
while( iter != end )
|
|
{
|
|
// are interfaces added to this container?
|
|
if( static_cast<OInterfaceContainerHelper*>((*iter).second)->getLength() )
|
|
// yes, put the type in the array
|
|
pArray[i++] = (*iter).first;
|
|
++iter;
|
|
}
|
|
if( (t_long2ptr::size_type)i != nSize ) {
|
|
// may be empty container, reduce the sequence to the right size
|
|
aInterfaceTypes = ::com::sun::star::uno::Sequence< sal_Int32 >( pArray, i );
|
|
}
|
|
return aInterfaceTypes;
|
|
}
|
|
return ::com::sun::star::uno::Sequence< sal_Int32 >();
|
|
}
|
|
|
|
OInterfaceContainerHelper * OMultiTypeInterfaceContainerHelperInt32::getContainer( const sal_Int32 & rKey ) const
|
|
{
|
|
::osl::MutexGuard aGuard( rMutex );
|
|
|
|
if (!m_pMap)
|
|
return 0;
|
|
t_long2ptr * pMap = static_cast<t_long2ptr *>(m_pMap);
|
|
t_long2ptr::iterator iter = findLong( pMap, rKey );
|
|
if( iter != pMap->end() )
|
|
return static_cast<OInterfaceContainerHelper*>((*iter).second);
|
|
return 0;
|
|
}
|
|
|
|
sal_Int32 OMultiTypeInterfaceContainerHelperInt32::addInterface(
|
|
const sal_Int32 & rKey, const Reference< XInterface > & rListener )
|
|
{
|
|
::osl::MutexGuard aGuard( rMutex );
|
|
if (!m_pMap)
|
|
m_pMap = new t_long2ptr();
|
|
t_long2ptr * pMap = static_cast<t_long2ptr *>(m_pMap);
|
|
t_long2ptr::iterator iter = findLong( pMap, rKey );
|
|
if( iter == pMap->end() )
|
|
{
|
|
OInterfaceContainerHelper * pLC = new OInterfaceContainerHelper( rMutex );
|
|
pMap->push_back(std::pair< sal_Int32, void* >(rKey, pLC));
|
|
return pLC->addInterface( rListener );
|
|
}
|
|
else
|
|
return static_cast<OInterfaceContainerHelper*>((*iter).second)->addInterface( rListener );
|
|
}
|
|
|
|
sal_Int32 OMultiTypeInterfaceContainerHelperInt32::removeInterface(
|
|
const sal_Int32 & rKey, const Reference< XInterface > & rListener )
|
|
{
|
|
::osl::MutexGuard aGuard( rMutex );
|
|
|
|
if (!m_pMap)
|
|
return 0;
|
|
// search container with id nUik
|
|
t_long2ptr * pMap = static_cast<t_long2ptr *>(m_pMap);
|
|
t_long2ptr::iterator iter = findLong( pMap, rKey );
|
|
// container found?
|
|
if( iter != pMap->end() )
|
|
return static_cast<OInterfaceContainerHelper*>((*iter).second)->removeInterface( rListener );
|
|
|
|
// no container with this id. Always return 0
|
|
return 0;
|
|
}
|
|
|
|
void OMultiTypeInterfaceContainerHelperInt32::disposeAndClear( const EventObject & rEvt )
|
|
{
|
|
t_long2ptr::size_type nSize = 0;
|
|
std::unique_ptr<OInterfaceContainerHelper *[]> ppListenerContainers;
|
|
{
|
|
::osl::MutexGuard aGuard( rMutex );
|
|
if (!m_pMap)
|
|
return;
|
|
|
|
t_long2ptr * pMap = static_cast<t_long2ptr *>(m_pMap);
|
|
nSize = pMap->size();
|
|
if( nSize )
|
|
{
|
|
typedef OInterfaceContainerHelper* ppp;
|
|
ppListenerContainers.reset(new ppp[nSize]);
|
|
|
|
t_long2ptr::iterator iter = pMap->begin();
|
|
t_long2ptr::iterator end = pMap->end();
|
|
|
|
t_long2ptr::size_type i = 0;
|
|
while( iter != end )
|
|
{
|
|
ppListenerContainers[i++] = static_cast<OInterfaceContainerHelper*>((*iter).second);
|
|
++iter;
|
|
}
|
|
}
|
|
}
|
|
|
|
// create a copy, because do not fire event in a guarded section
|
|
for( t_long2ptr::size_type i = 0;
|
|
i < nSize; i++ )
|
|
{
|
|
if( ppListenerContainers[i] )
|
|
ppListenerContainers[i]->disposeAndClear( rEvt );
|
|
}
|
|
}
|
|
|
|
void OMultiTypeInterfaceContainerHelperInt32::clear()
|
|
{
|
|
::osl::MutexGuard aGuard( rMutex );
|
|
if (!m_pMap)
|
|
return;
|
|
t_long2ptr * pMap = static_cast<t_long2ptr *>(m_pMap);
|
|
t_long2ptr::iterator iter = pMap->begin();
|
|
t_long2ptr::iterator end = pMap->end();
|
|
|
|
while( iter != end )
|
|
{
|
|
static_cast<OInterfaceContainerHelper*>((*iter).second)->clear();
|
|
++iter;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|