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diff --git a/comphelper/source/property/MasterPropertySet.cxx b/comphelper/source/property/MasterPropertySet.cxx
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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 <comphelper/MasterPropertySet.hxx>
+#include <comphelper/MasterPropertySetInfo.hxx>
+#include <comphelper/ChainablePropertySet.hxx>
+#include <comphelper/ChainablePropertySetInfo.hxx>
+#include <comphelper/solarmutex.hxx>
+
+
+#include <memory>
+#include <vector>
+#include <optional>
+
+namespace {
+
+class AutoOGuardArray
+{
+ std::vector<std::optional< osl::Guard< comphelper::SolarMutex > >> maGuardArray;
+
+public:
+ explicit AutoOGuardArray( sal_Int32 nNumElements );
+
+ std::optional< osl::Guard< comphelper::SolarMutex > > & operator[] ( sal_Int32 i ) { return maGuardArray[i]; }
+};
+
+}
+
+AutoOGuardArray::AutoOGuardArray( sal_Int32 nNumElements ) : maGuardArray(nNumElements)
+{
+}
+
+
+using namespace ::comphelper;
+using namespace ::com::sun::star;
+using namespace ::com::sun::star::uno;
+using namespace ::com::sun::star::lang;
+using namespace ::com::sun::star::beans;
+
+
+SlaveData::SlaveData ( ChainablePropertySet *pSlave)
+: mxSlave ( pSlave )
+, mbInit ( false )
+{
+}
+
+MasterPropertySet::MasterPropertySet( comphelper::MasterPropertySetInfo* pInfo, comphelper::SolarMutex* pMutex )
+ noexcept
+: mpMutex ( pMutex )
+, mnLastId ( 0 )
+, mxInfo ( pInfo )
+{
+}
+
+MasterPropertySet::~MasterPropertySet()
+ noexcept
+{
+ for( const auto& rSlave : maSlaveMap )
+ delete rSlave.second;
+}
+
+// XPropertySet
+Reference< XPropertySetInfo > SAL_CALL MasterPropertySet::getPropertySetInfo( )
+{
+ return mxInfo;
+}
+
+void MasterPropertySet::registerSlave ( ChainablePropertySet *pNewSet )
+ noexcept
+{
+ maSlaveMap [ ++mnLastId ] = new SlaveData ( pNewSet );
+ mxInfo->add ( pNewSet->mxInfo->maMap, mnLastId );
+}
+
+void SAL_CALL MasterPropertySet::setPropertyValue( const OUString& rPropertyName, const Any& rValue )
+{
+ // acquire mutex in c-tor and releases it in the d-tor (exception safe!).
+ std::optional< osl::Guard< comphelper::SolarMutex > > xMutexGuard;
+ if (mpMutex)
+ xMutexGuard.emplace( mpMutex );
+
+ PropertyDataHash::const_iterator aIter = mxInfo->maMap.find ( rPropertyName );
+
+ if( aIter == mxInfo->maMap.end())
+ throw UnknownPropertyException( rPropertyName, static_cast< XPropertySet* >( this ) );
+
+ if ( (*aIter).second->mnMapId == 0 ) // 0 means it's one of ours !
+ {
+ _preSetValues();
+ _setSingleValue( *((*aIter).second->mpInfo), rValue );
+ _postSetValues();
+ }
+ else
+ {
+ ChainablePropertySet * pSlave = maSlaveMap [ (*aIter).second->mnMapId ]->mxSlave.get();
+
+ // acquire mutex in c-tor and releases it in the d-tor (exception safe!).
+ std::optional< osl::Guard< comphelper::SolarMutex > > xMutexGuard2;
+ if (pSlave->mpMutex)
+ xMutexGuard2.emplace( pSlave->mpMutex );
+
+ pSlave->_preSetValues();
+ pSlave->_setSingleValue( *((*aIter).second->mpInfo), rValue );
+ pSlave->_postSetValues();
+ }
+}
+
+Any SAL_CALL MasterPropertySet::getPropertyValue( const OUString& rPropertyName )
+{
+ // acquire mutex in c-tor and releases it in the d-tor (exception safe!).
+ std::optional< osl::Guard< comphelper::SolarMutex > > xMutexGuard;
+ if (mpMutex)
+ xMutexGuard.emplace( mpMutex );
+
+ PropertyDataHash::const_iterator aIter = mxInfo->maMap.find ( rPropertyName );
+
+ if( aIter == mxInfo->maMap.end())
+ throw UnknownPropertyException( rPropertyName, static_cast< XPropertySet* >( this ) );
+
+ Any aAny;
+ if ( (*aIter).second->mnMapId == 0 ) // 0 means it's one of ours !
+ {
+ _preGetValues();
+ _getSingleValue( *((*aIter).second->mpInfo), aAny );
+ _postGetValues();
+ }
+ else
+ {
+ ChainablePropertySet * pSlave = maSlaveMap [ (*aIter).second->mnMapId ]->mxSlave.get();
+
+ // acquire mutex in c-tor and releases it in the d-tor (exception safe!).
+ std::optional< osl::Guard< comphelper::SolarMutex > > xMutexGuard2;
+ if (pSlave->mpMutex)
+ xMutexGuard2.emplace( pSlave->mpMutex );
+
+ pSlave->_preGetValues();
+ pSlave->_getSingleValue( *((*aIter).second->mpInfo), aAny );
+ pSlave->_postGetValues();
+ }
+ return aAny;
+}
+
+void SAL_CALL MasterPropertySet::addPropertyChangeListener( const OUString&, const Reference< XPropertyChangeListener >& )
+{
+ // todo
+}
+
+void SAL_CALL MasterPropertySet::removePropertyChangeListener( const OUString&, const Reference< XPropertyChangeListener >& )
+{
+ // todo
+}
+
+void SAL_CALL MasterPropertySet::addVetoableChangeListener( const OUString&, const Reference< XVetoableChangeListener >& )
+{
+ // todo
+}
+
+void SAL_CALL MasterPropertySet::removeVetoableChangeListener( const OUString&, const Reference< XVetoableChangeListener >& )
+{
+ // todo
+}
+
+// XMultiPropertySet
+void SAL_CALL MasterPropertySet::setPropertyValues( const Sequence< OUString >& aPropertyNames, const Sequence< Any >& aValues )
+{
+ // acquire mutex in c-tor and releases it in the d-tor (exception safe!).
+ std::optional< osl::Guard< comphelper::SolarMutex > > xMutexGuard;
+ if (mpMutex)
+ xMutexGuard.emplace( mpMutex );
+
+ const sal_Int32 nCount = aPropertyNames.getLength();
+
+ if( nCount != aValues.getLength() )
+ throw IllegalArgumentException();
+
+ if( !nCount )
+ return;
+
+ _preSetValues();
+
+ const Any * pAny = aValues.getConstArray();
+ const OUString * pString = aPropertyNames.getConstArray();
+ PropertyDataHash::const_iterator aEnd = mxInfo->maMap.end(), aIter;
+
+ //!! have a unique_ptr to an array of OGuards in order to have the
+ //!! allocated memory properly freed (exception safe!).
+ //!! Since the array itself has unique_ptrs as members we have to use a
+ //!! helper class 'AutoOGuardArray' in order to have
+ //!! the acquired locks properly released.
+ AutoOGuardArray aOGuardArray( nCount );
+
+ for ( sal_Int32 i = 0; i < nCount; ++i, ++pString, ++pAny )
+ {
+ aIter = mxInfo->maMap.find ( *pString );
+ if ( aIter == aEnd )
+ throw RuntimeException( *pString, static_cast< XPropertySet* >( this ) );
+
+ if ( (*aIter).second->mnMapId == 0 ) // 0 means it's one of ours !
+ _setSingleValue( *((*aIter).second->mpInfo), *pAny );
+ else
+ {
+ SlaveData * pSlave = maSlaveMap [ (*aIter).second->mnMapId ];
+ if (!pSlave->IsInit())
+ {
+ // acquire mutex in c-tor and releases it in the d-tor (exception safe!).
+ if (pSlave->mxSlave->mpMutex)
+ aOGuardArray[i].emplace( pSlave->mxSlave->mpMutex );
+
+ pSlave->mxSlave->_preSetValues();
+ pSlave->SetInit ( true );
+ }
+ pSlave->mxSlave->_setSingleValue( *((*aIter).second->mpInfo), *pAny );
+ }
+ }
+
+ _postSetValues();
+ for( const auto& rSlave : maSlaveMap )
+ {
+ if( rSlave.second->IsInit() )
+ {
+ rSlave.second->mxSlave->_postSetValues();
+ rSlave.second->SetInit( false );
+ }
+ }
+}
+
+Sequence< Any > SAL_CALL MasterPropertySet::getPropertyValues( const Sequence< OUString >& aPropertyNames )
+{
+ // acquire mutex in c-tor and releases it in the d-tor (exception safe!).
+ std::optional< osl::Guard< comphelper::SolarMutex > > xMutexGuard;
+ if (mpMutex)
+ xMutexGuard.emplace( mpMutex );
+
+ const sal_Int32 nCount = aPropertyNames.getLength();
+
+ Sequence < Any > aValues ( nCount );
+
+ if( nCount )
+ {
+ _preGetValues();
+
+ Any * pAny = aValues.getArray();
+ const OUString * pString = aPropertyNames.getConstArray();
+ PropertyDataHash::const_iterator aEnd = mxInfo->maMap.end(), aIter;
+
+ //!! have a unique_ptr to an array of OGuards in order to have the
+ //!! allocated memory properly freed (exception safe!).
+ //!! Since the array itself has unique_ptrs as members we have to use a
+ //!! helper class 'AutoOGuardArray' in order to have
+ //!! the acquired locks properly released.
+ AutoOGuardArray aOGuardArray( nCount );
+
+ for ( sal_Int32 i = 0; i < nCount; ++i, ++pString, ++pAny )
+ {
+ aIter = mxInfo->maMap.find ( *pString );
+ if ( aIter == aEnd )
+ throw RuntimeException( *pString, static_cast< XPropertySet* >( this ) );
+
+ if ( (*aIter).second->mnMapId == 0 ) // 0 means it's one of ours !
+ _getSingleValue( *((*aIter).second->mpInfo), *pAny );
+ else
+ {
+ SlaveData * pSlave = maSlaveMap [ (*aIter).second->mnMapId ];
+ if (!pSlave->IsInit())
+ {
+ // acquire mutex in c-tor and releases it in the d-tor (exception safe!).
+ if (pSlave->mxSlave->mpMutex)
+ aOGuardArray[i].emplace( pSlave->mxSlave->mpMutex );
+
+ pSlave->mxSlave->_preGetValues();
+ pSlave->SetInit ( true );
+ }
+ pSlave->mxSlave->_getSingleValue( *((*aIter).second->mpInfo), *pAny );
+ }
+ }
+
+ _postSetValues();
+ for( const auto& rSlave : maSlaveMap )
+ {
+ if( rSlave.second->IsInit() )
+ {
+ rSlave.second->mxSlave->_postSetValues();
+ rSlave.second->SetInit( false );
+ }
+ }
+ }
+ return aValues;
+}
+
+void SAL_CALL MasterPropertySet::addPropertiesChangeListener( const Sequence< OUString >&, const Reference< XPropertiesChangeListener >& )
+{
+ // todo
+}
+
+void SAL_CALL MasterPropertySet::removePropertiesChangeListener( const Reference< XPropertiesChangeListener >& )
+{
+ // todo
+}
+
+void SAL_CALL MasterPropertySet::firePropertiesChangeEvent( const Sequence< OUString >&, const Reference< XPropertiesChangeListener >& )
+{
+ // todo
+}
+
+// XPropertyState
+PropertyState SAL_CALL MasterPropertySet::getPropertyState( const OUString& PropertyName )
+{
+ PropertyDataHash::const_iterator aIter = mxInfo->maMap.find( PropertyName );
+ if( aIter == mxInfo->maMap.end())
+ throw UnknownPropertyException( PropertyName, static_cast< XPropertySet* >( this ) );
+
+ // 0 means it's one of ours !
+ if ( (*aIter).second->mnMapId != 0 )
+ {
+ ChainablePropertySet * pSlave = maSlaveMap [ (*aIter).second->mnMapId ]->mxSlave.get();
+
+ // acquire mutex in c-tor and releases it in the d-tor (exception safe!).
+ std::optional< osl::Guard< comphelper::SolarMutex > > xMutexGuard;
+ if (pSlave->mpMutex)
+ xMutexGuard.emplace( pSlave->mpMutex );
+ }
+
+ return PropertyState_AMBIGUOUS_VALUE;
+}
+
+Sequence< PropertyState > SAL_CALL MasterPropertySet::getPropertyStates( const Sequence< OUString >& rPropertyNames )
+{
+ const sal_Int32 nCount = rPropertyNames.getLength();
+
+ Sequence< PropertyState > aStates( nCount );
+ if( nCount )
+ {
+ PropertyState * pState = aStates.getArray();
+ const OUString * pString = rPropertyNames.getConstArray();
+ PropertyDataHash::const_iterator aEnd = mxInfo->maMap.end(), aIter;
+
+ for ( sal_Int32 i = 0; i < nCount; ++i, ++pString, ++pState )
+ {
+ aIter = mxInfo->maMap.find ( *pString );
+ if ( aIter == aEnd )
+ throw UnknownPropertyException( *pString, static_cast< XPropertySet* >( this ) );
+
+ // 0 means it's one of ours !
+ if ( (*aIter).second->mnMapId != 0 )
+ {
+ SlaveData * pSlave = maSlaveMap [ (*aIter).second->mnMapId ];
+ if (!pSlave->IsInit())
+ {
+ pSlave->SetInit ( true );
+ }
+ }
+ }
+ for( const auto& rSlave : maSlaveMap )
+ {
+ if( rSlave.second->IsInit() )
+ {
+ rSlave.second->SetInit( false );
+ }
+ }
+ }
+ return aStates;
+}
+
+void SAL_CALL MasterPropertySet::setPropertyToDefault( const OUString& rPropertyName )
+{
+ PropertyDataHash::const_iterator aIter = mxInfo->maMap.find ( rPropertyName );
+
+ if( aIter == mxInfo->maMap.end())
+ throw UnknownPropertyException( rPropertyName, static_cast< XPropertySet* >( this ) );
+}
+
+Any SAL_CALL MasterPropertySet::getPropertyDefault( const OUString& rPropertyName )
+{
+ PropertyDataHash::const_iterator aIter = mxInfo->maMap.find ( rPropertyName );
+
+ if( aIter == mxInfo->maMap.end())
+ throw UnknownPropertyException( rPropertyName, static_cast< XPropertySet* >( this ) );
+ return Any();
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */