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office-gobmx/cppuhelper/source/interfacecontainer.cxx
Mike Kaganski b23e4d2bac cppuhelper: MSVC: pragma warning: make more specific, remove obsolete 
Change-Id: Ib097ea1764d275a3123d0dccf05d52315b4858a1
Reviewed-on: https://gerrit.libreoffice.org/48971
Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Mike Kaganski <mike.kaganski@collabora.com>
2018-02-01 06:52:50 +01:00

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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0 .
*/
#include <cppuhelper/interfacecontainer.hxx>
#include <cppuhelper/queryinterface.hxx>
#include <cppuhelper/propshlp.hxx>
#include <osl/diagnose.h>
#include <osl/mutex.hxx>
#include <memory>
#include <com/sun/star/lang/XEventListener.hpp>
using namespace osl;
using namespace com::sun::star::uno;
using namespace com::sun::star::lang;
namespace cppu
{
/**
* Remove an element from an interface sequence.
*/
static void sequenceRemoveElementAt( Sequence< Reference< XInterface > > & rSeq, sal_Int32 index )
{
sal_Int32 nNewLen = rSeq.getLength() - 1;
Sequence< Reference< XInterface > > aDestSeq( rSeq.getLength() - 1 );
// getArray on a const sequence is faster
const Reference< XInterface > * pSource = rSeq.getConstArray();
Reference< XInterface > * pDest = aDestSeq.getArray();
sal_Int32 i = 0;
for( ; i < index; i++ )
pDest[i] = pSource[i];
for( sal_Int32 j = i ; j < nNewLen; j++ )
pDest[j] = pSource[j+1];
rSeq = aDestSeq;
}
OInterfaceIteratorHelper::OInterfaceIteratorHelper( OInterfaceContainerHelper & rCont_ )
: rCont( rCont_ )
{
MutexGuard aGuard( rCont.rMutex );
if( rCont.bInUse )
// worst case, two iterators at the same time
rCont.copyAndResetInUse();
bIsList = rCont_.bIsList;
aData = rCont_.aData;
if( bIsList )
{
rCont.bInUse = true;
nRemain = aData.pAsSequence->getLength();
}
else if( aData.pAsInterface )
{
aData.pAsInterface->acquire();
nRemain = 1;
}
else
nRemain = 0;
}
OInterfaceIteratorHelper::~OInterfaceIteratorHelper()
{
bool bShared;
{
MutexGuard aGuard( rCont.rMutex );
// bResetInUse protect the iterator against recursion
bShared = aData.pAsSequence == rCont.aData.pAsSequence && rCont.bIsList;
if( bShared )
{
OSL_ENSURE( rCont.bInUse, "OInterfaceContainerHelper must be in use" );
rCont.bInUse = false;
}
}
if( !bShared )
{
if( bIsList )
// Sequence owned by the iterator
delete aData.pAsSequence;
else if( aData.pAsInterface )
// Interface is acquired by the iterator
aData.pAsInterface->release();
}
}
XInterface * OInterfaceIteratorHelper::next()
{
if( nRemain )
{
nRemain--;
if( bIsList )
// typecase to const,so the getArray method is faster
return aData.pAsSequence->getConstArray()[nRemain].get();
if( aData.pAsInterface )
return aData.pAsInterface;
}
// exception
return nullptr;
}
void OInterfaceIteratorHelper::remove()
{
if( bIsList )
{
OSL_ASSERT( nRemain >= 0 &&
nRemain < aData.pAsSequence->getLength() );
XInterface * p = aData.pAsSequence->getConstArray()[nRemain].get();
rCont.removeInterface( * reinterpret_cast< const Reference< XInterface > * >( &p ) );
}
else
{
OSL_ASSERT( 0 == nRemain );
rCont.removeInterface( * reinterpret_cast< const Reference< XInterface > * >(&aData.pAsInterface));
}
}
OInterfaceContainerHelper::OInterfaceContainerHelper( Mutex & rMutex_ )
: rMutex( rMutex_ )
, bInUse( false )
, bIsList( false )
{
}
OInterfaceContainerHelper::~OInterfaceContainerHelper()
{
OSL_ENSURE( !bInUse, "~OInterfaceContainerHelper but is in use" );
if( bIsList )
delete aData.pAsSequence;
else if( aData.pAsInterface )
aData.pAsInterface->release();
}
sal_Int32 OInterfaceContainerHelper::getLength() const
{
MutexGuard aGuard( rMutex );
if( bIsList )
return aData.pAsSequence->getLength();
if( aData.pAsInterface )
return 1;
return 0;
}
Sequence< Reference<XInterface> > OInterfaceContainerHelper::getElements() const
{
MutexGuard aGuard( rMutex );
if( bIsList )
return *aData.pAsSequence;
if( aData.pAsInterface )
{
Reference<XInterface> x( aData.pAsInterface );
return Sequence< Reference< XInterface > >( &x, 1 );
}
return Sequence< Reference< XInterface > >();
}
void OInterfaceContainerHelper::copyAndResetInUse()
{
OSL_ENSURE( bInUse, "OInterfaceContainerHelper not in use" );
if( bInUse )
{
// this should be the worst case. If a iterator is active
// and a new Listener is added.
if( bIsList )
aData.pAsSequence = new Sequence< Reference< XInterface > >( *aData.pAsSequence );
else if( aData.pAsInterface )
aData.pAsInterface->acquire();
bInUse = false;
}
}
sal_Int32 OInterfaceContainerHelper::addInterface( const Reference<XInterface> & rListener )
{
OSL_ASSERT( rListener.is() );
MutexGuard aGuard( rMutex );
if( bInUse )
copyAndResetInUse();
if( bIsList )
{
sal_Int32 nLen = aData.pAsSequence->getLength();
aData.pAsSequence->realloc( nLen +1 );
aData.pAsSequence->getArray()[ nLen ] = rListener;
return nLen +1;
}
if( aData.pAsInterface )
{
Sequence< Reference< XInterface > > * pSeq = new Sequence< Reference< XInterface > >( 2 );
Reference<XInterface> * pArray = pSeq->getArray();
pArray[0] = aData.pAsInterface;
pArray[1] = rListener;
aData.pAsInterface->release();
aData.pAsSequence = pSeq;
bIsList = true;
return 2;
}
aData.pAsInterface = rListener.get();
if( rListener.is() )
rListener->acquire();
return 1;
}
sal_Int32 OInterfaceContainerHelper::removeInterface( const Reference<XInterface> & rListener )
{
OSL_ASSERT( rListener.is() );
MutexGuard aGuard( rMutex );
if( bInUse )
copyAndResetInUse();
if( bIsList )
{
const Reference<XInterface> * pL = aData.pAsSequence->getConstArray();
sal_Int32 nLen = aData.pAsSequence->getLength();
sal_Int32 i;
for( i = 0; i < nLen; i++ )
{
// It is not valid to compare the pointer directly, but it's faster.
if( pL[i].get() == rListener.get() )
{
sequenceRemoveElementAt( *aData.pAsSequence, i );
break;
}
}
if( i == nLen )
{
// interface not found, use the correct compare method
for( i = 0; i < nLen; i++ )
{
if( pL[i] == rListener )
{
sequenceRemoveElementAt(*aData.pAsSequence, i );
break;
}
}
}
if( aData.pAsSequence->getLength() == 1 )
{
XInterface * p = aData.pAsSequence->getConstArray()[0].get();
p->acquire();
delete aData.pAsSequence;
aData.pAsInterface = p;
bIsList = false;
return 1;
}
return aData.pAsSequence->getLength();
}
if( aData.pAsInterface && Reference<XInterface>( aData.pAsInterface ) == rListener )
{
aData.pAsInterface->release();
aData.pAsInterface = nullptr;
}
return aData.pAsInterface ? 1 : 0;
}
void OInterfaceContainerHelper::disposeAndClear( const EventObject & rEvt )
{
ClearableMutexGuard aGuard( rMutex );
OInterfaceIteratorHelper aIt( *this );
// Release container, in case new entries come while disposing
OSL_ENSURE( !bIsList || bInUse, "OInterfaceContainerHelper not in use" );
if( !bIsList && aData.pAsInterface )
aData.pAsInterface->release();
// set the member to null, use the iterator to delete the values
aData.pAsInterface = nullptr;
bIsList = false;
bInUse = false;
aGuard.clear();
while( aIt.hasMoreElements() )
{
try
{
Reference<XEventListener > xLst( aIt.next(), UNO_QUERY );
if( xLst.is() )
xLst->disposing( rEvt );
}
catch ( RuntimeException & )
{
// be robust, if e.g. a remote bridge has disposed already.
// there is no way to delegate the error to the caller :o(.
}
}
}
void OInterfaceContainerHelper::clear()
{
ClearableMutexGuard aGuard( rMutex );
OInterfaceIteratorHelper aIt( *this );
// Release container, in case new entries come while disposing
OSL_ENSURE( !bIsList || bInUse, "OInterfaceContainerHelper not in use" );
if( !bIsList && aData.pAsInterface )
aData.pAsInterface->release();
// set the member to null, use the iterator to delete the values
aData.pAsInterface = nullptr;
bIsList = false;
bInUse = false;
// release mutex before aIt destructor call
aGuard.clear();
}
// specialized class for type
typedef std::vector< std::pair < Type , void* > > t_type2ptr;
OMultiTypeInterfaceContainerHelper::OMultiTypeInterfaceContainerHelper( Mutex & rMutex_ )
: rMutex( rMutex_ )
{
m_pMap = new t_type2ptr;
}
OMultiTypeInterfaceContainerHelper::~OMultiTypeInterfaceContainerHelper()
{
t_type2ptr * pMap = static_cast<t_type2ptr *>(m_pMap);
t_type2ptr::iterator iter = pMap->begin();
t_type2ptr::iterator end = pMap->end();
while( iter != end )
{
delete static_cast<OInterfaceContainerHelper*>((*iter).second);
(*iter).second = nullptr;
++iter;
}
delete pMap;
}
Sequence< Type > OMultiTypeInterfaceContainerHelper::getContainedTypes() const
{
t_type2ptr * pMap = static_cast<t_type2ptr *>(m_pMap);
t_type2ptr::size_type nSize;
::osl::MutexGuard aGuard( rMutex );
nSize = pMap->size();
if( nSize )
{
css::uno::Sequence< Type > aInterfaceTypes( nSize );
Type * pArray = aInterfaceTypes.getArray();
t_type2ptr::iterator iter = pMap->begin();
t_type2ptr::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( static_cast<t_type2ptr::size_type>(i) != nSize ) {
// may be empty container, reduce the sequence to the right size
aInterfaceTypes = css::uno::Sequence< Type >( pArray, i );
}
return aInterfaceTypes;
}
return css::uno::Sequence< Type >();
}
static t_type2ptr::iterator findType(t_type2ptr *pMap, const Type & rKey )
{
t_type2ptr::iterator iter = pMap->begin();
t_type2ptr::iterator end = pMap->end();
while( iter != end )
{
if (iter->first == rKey)
break;
++iter;
}
return iter;
}
OInterfaceContainerHelper * OMultiTypeInterfaceContainerHelper::getContainer( const Type & rKey ) const
{
::osl::MutexGuard aGuard( rMutex );
t_type2ptr * pMap = static_cast<t_type2ptr *>(m_pMap);
t_type2ptr::iterator iter = findType( pMap, rKey );
if( iter != pMap->end() )
return static_cast<OInterfaceContainerHelper*>((*iter).second);
return nullptr;
}
sal_Int32 OMultiTypeInterfaceContainerHelper::addInterface(
const Type & rKey, const Reference< XInterface > & rListener )
{
::osl::MutexGuard aGuard( rMutex );
t_type2ptr * pMap = static_cast<t_type2ptr *>(m_pMap);
t_type2ptr::iterator iter = findType( pMap, rKey );
if( iter == pMap->end() )
{
OInterfaceContainerHelper * pLC = new OInterfaceContainerHelper( rMutex );
pMap->push_back(std::pair<Type, void*>(rKey, pLC));
return pLC->addInterface( rListener );
}
return static_cast<OInterfaceContainerHelper*>((*iter).second)->addInterface( rListener );
}
sal_Int32 OMultiTypeInterfaceContainerHelper::removeInterface(
const Type & rKey, const Reference< XInterface > & rListener )
{
::osl::MutexGuard aGuard( rMutex );
// search container with id nUik
t_type2ptr * pMap = static_cast<t_type2ptr *>(m_pMap);
t_type2ptr::iterator iter = findType( 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 OMultiTypeInterfaceContainerHelper::disposeAndClear( const EventObject & rEvt )
{
t_type2ptr::size_type nSize = 0;
std::unique_ptr<OInterfaceContainerHelper *[]> ppListenerContainers;
{
::osl::MutexGuard aGuard( rMutex );
t_type2ptr * pMap = static_cast<t_type2ptr *>(m_pMap);
nSize = pMap->size();
if( nSize )
{
typedef OInterfaceContainerHelper* ppp;
ppListenerContainers.reset(new ppp[nSize]);
//ppListenerContainers = new (ListenerContainer*)[nSize];
t_type2ptr::iterator iter = pMap->begin();
t_type2ptr::iterator end = pMap->end();
t_type2ptr::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_type2ptr::size_type i = 0;
i < nSize; i++ )
{
if( ppListenerContainers[i] )
ppListenerContainers[i]->disposeAndClear( rEvt );
}
}
void OMultiTypeInterfaceContainerHelper::clear()
{
::osl::MutexGuard aGuard( rMutex );
t_type2ptr * pMap = static_cast<t_type2ptr *>(m_pMap);
t_type2ptr::iterator iter = pMap->begin();
t_type2ptr::iterator end = pMap->end();
while( iter != end )
{
static_cast<OInterfaceContainerHelper*>((*iter).second)->clear();
++iter;
}
}
// specialized class for long
typedef std::vector< std::pair < sal_Int32 , void* > > t_long2ptr;
static t_long2ptr::iterator findLong(t_long2ptr *pMap, sal_Int32 nKey )
{
t_long2ptr::iterator iter = pMap->begin();
t_long2ptr::iterator end = pMap->end();
while( iter != end )
{
if (iter->first == nKey)
break;
++iter;
}
return iter;
}
OMultiTypeInterfaceContainerHelperInt32::OMultiTypeInterfaceContainerHelperInt32( Mutex & rMutex_ )
: m_pMap( nullptr )
, rMutex( rMutex_ )
{
// delay pMap allocation until necessary.
}
OMultiTypeInterfaceContainerHelperInt32::~OMultiTypeInterfaceContainerHelperInt32()
{
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 )
{
delete static_cast<OInterfaceContainerHelper*>((*iter).second);
(*iter).second = nullptr;
++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 )
{
css::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( static_cast<t_long2ptr::size_type>(i) != nSize ) {
// may be empty container, reduce the sequence to the right size
aInterfaceTypes = css::uno::Sequence< sal_Int32 >( pArray, i );
}
return aInterfaceTypes;
}
return css::uno::Sequence< sal_Int32 >();
}
OInterfaceContainerHelper * OMultiTypeInterfaceContainerHelperInt32::getContainer( const sal_Int32 & rKey ) const
{
::osl::MutexGuard aGuard( rMutex );
if (!m_pMap)
return nullptr;
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 nullptr;
}
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 );
}
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: */
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