Adding upstream version 4:7.4.7.upstream/4%7.4.7upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 596 insertions, 0 deletions

diff --git a/cppuhelper/source/interfacecontainer.cxx b/cppuhelper/source/interfacecontainer.cxx
new file mode 100644
index 000000000..c97a8ba99
--- /dev/null
+++ b/cppuhelper/source/interfacecontainer.cxx
@@ -0,0 +1,596 @@
+/* -*- 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/propshlp.hxx>
+#include <comphelper/sequence.hxx>
+
+#include <o3tl/safeint.hxx>
+#include <osl/diagnose.h>
+#include <osl/mutex.hxx>
+#include <sal/log.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
+{
+
+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.pAsVector->size();
+    }
+    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.pAsVector == rCont.aData.pAsVector && 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.pAsVector;
+        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.pAsVector)[nRemain].get();
+        if( aData.pAsInterface )
+            return aData.pAsInterface;
+    }
+    // exception
+    return nullptr;
+}
+
+void OInterfaceIteratorHelper::remove()
+{
+    if( bIsList )
+    {
+        OSL_ASSERT( nRemain >= 0 &&
+                    o3tl::make_unsigned(nRemain) < aData.pAsVector->size() );
+        XInterface * p = (*aData.pAsVector)[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.pAsVector;
+    else if( aData.pAsInterface )
+        aData.pAsInterface->release();
+}
+
+sal_Int32 OInterfaceContainerHelper::getLength() const
+{
+    MutexGuard aGuard( rMutex );
+    if( bIsList )
+        return aData.pAsVector->size();
+    if( aData.pAsInterface )
+        return 1;
+    return 0;
+}
+
+Sequence< Reference<XInterface> > OInterfaceContainerHelper::getElements() const
+{
+    MutexGuard aGuard( rMutex );
+    if( bIsList )
+        return comphelper::containerToSequence(*aData.pAsVector);
+    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 an iterator is active
+        // and a new Listener is added.
+        if( bIsList )
+            aData.pAsVector= new std::vector< Reference< XInterface > >( *aData.pAsVector );
+        else if( aData.pAsInterface )
+            aData.pAsInterface->acquire();
+
+        bInUse = false;
+    }
+}
+
+sal_Int32 OInterfaceContainerHelper::addInterface( const Reference<XInterface> & rListener )
+{
+    SAL_WARN_IF( !rListener.is(), "cppuhelper", "rListener is empty" );
+    MutexGuard aGuard( rMutex );
+    if( bInUse )
+        copyAndResetInUse();
+
+    if( bIsList )
+    {
+        aData.pAsVector->push_back(rListener);
+        return aData.pAsVector->size();
+    }
+    if( aData.pAsInterface )
+    {
+        Reference<XInterface> tmp(aData.pAsInterface);
+        aData.pAsInterface->release();
+        aData.pAsVector = new std::vector<Reference<XInterface>>(2);
+        (*aData.pAsVector)[0] = std::move(tmp);
+        (*aData.pAsVector)[1] = rListener;
+        bIsList = true;
+        return 2;
+    }
+    aData.pAsInterface = rListener.get();
+    if( rListener.is() )
+        rListener->acquire();
+    return 1;
+}
+
+sal_Int32 OInterfaceContainerHelper::removeInterface( const Reference<XInterface> & rListener )
+{
+    SAL_WARN_IF( !rListener.is(), "cppuhelper", "rListener is empty" );
+    MutexGuard aGuard( rMutex );
+    if( bInUse )
+        copyAndResetInUse();
+
+    if( bIsList )
+    {
+        // It is not valid to compare the pointer directly, but it's faster.
+        auto findIt = std::find_if(aData.pAsVector->begin(), aData.pAsVector->end(),
+                    [&](const Reference<XInterface>& r)
+                    { return r.get() == rListener.get(); });
+        if (findIt != aData.pAsVector->end())
+        {
+            aData.pAsVector->erase(findIt);
+        }
+        else
+        {
+            // interface not found, use the correct compare method
+            for( auto it = aData.pAsVector->begin(); it != aData.pAsVector->end(); ++it )
+            {
+                if( *it == rListener )
+                {
+                    aData.pAsVector->erase(it);
+                    break;
+                }
+            }
+        }
+
+        if( aData.pAsVector->size() == 1 )
+        {
+            XInterface * p = (*aData.pAsVector)[0].get();
+            p->acquire();
+            delete aData.pAsVector;
+            aData.pAsInterface = p;
+            bIsList = false;
+            return 1;
+        }
+        return aData.pAsVector->size();
+    }
+    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()
+{
+    MutexGuard aGuard( rMutex );
+    // Release container, in case new entries come while disposing
+    OSL_ENSURE( !bIsList || bInUse, "OInterfaceContainerHelper not in use" );
+    if (bInUse)
+        copyAndResetInUse();
+    if (bIsList)
+        delete aData.pAsVector;
+    else if (aData.pAsInterface)
+        aData.pAsInterface->release();
+    aData.pAsInterface = nullptr;
+    bIsList = false;
+}
+
+// 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);
+
+    for (auto& rItem : *pMap)
+    {
+        delete static_cast<OInterfaceContainerHelper*>(rItem.second);
+        rItem.second = nullptr;
+    }
+    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();
+
+        sal_Int32 i = 0;
+        for (const auto& rItem : *pMap)
+        {
+            // are interfaces added to this container?
+            if( static_cast<OInterfaceContainerHelper*>(rItem.second)->getLength() )
+                // yes, put the type in the array
+                pArray[i++] = rItem.first;
+        }
+        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 )
+{
+    return std::find_if(pMap->begin(), pMap->end(),
+        [&rKey](const t_type2ptr::value_type& rItem) { return rItem.first == rKey; });
+}
+
+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::size_type i = 0;
+            for (const auto& rItem : *pMap)
+            {
+                ppListenerContainers[i++] = static_cast<OInterfaceContainerHelper*>(rItem.second);
+            }
+        }
+    }
+
+    // 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);
+
+    for (auto& rItem : *pMap)
+    {
+        static_cast<OInterfaceContainerHelper*>(rItem.second)->clear();
+    }
+}
+
+// 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 )
+{
+    return std::find_if(pMap->begin(), pMap->end(),
+        [&nKey](const t_long2ptr::value_type& rItem) { return rItem.first == nKey; });
+}
+
+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);
+
+    for (auto& rItem : *pMap)
+    {
+        delete static_cast<OInterfaceContainerHelper*>(rItem.second);
+        rItem.second = nullptr;
+    }
+    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();
+
+        sal_Int32 i = 0;
+        for (const auto& rItem : *pMap)
+        {
+            // are interfaces added to this container?
+            if( static_cast<OInterfaceContainerHelper*>(rItem.second)->getLength() )
+                // yes, put the type in the array
+                pArray[i++] = rItem.first;
+        }
+        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::size_type i = 0;
+            for (const auto& rItem : *pMap)
+            {
+                ppListenerContainers[i++] = static_cast<OInterfaceContainerHelper*>(rItem.second);
+            }
+        }
+    }
+
+    // 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);
+
+    for (auto& rItem : *pMap)
+    {
+        static_cast<OInterfaceContainerHelper*>(rItem.second)->clear();
+    }
+}
+
+}
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */