office-gobmx/cppuhelper/source/interfacecontainer.cxx
2011-02-03 23:39:38 +01:00

705 lines
21 KiB
C++

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
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*
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*
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*
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
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// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_cppuhelper.hxx"
#include <cppuhelper/interfacecontainer.hxx>
#include <cppuhelper/queryinterface.hxx>
#include <cppuhelper/propshlp.hxx>
#include <osl/diagnose.h>
#include <osl/mutex.hxx>
#include <boost/unordered_map.hpp>
#include <com/sun/star/lang/XEventListener.hpp>
using namespace osl;
using namespace com::sun::star::uno;
using namespace com::sun::star::lang;
namespace cppu
{
/**
* Reallocate the sequence.
*/
static void realloc( Sequence< Reference< XInterface > > & rSeq, sal_Int32 nNewLen )
SAL_THROW( () )
{
rSeq.realloc( nNewLen );
}
/**
* Remove an element from an interface sequence.
*/
static void sequenceRemoveElementAt( Sequence< Reference< XInterface > > & rSeq, sal_Int32 index )
SAL_THROW( () )
{
sal_Int32 nNewLen = rSeq.getLength() - 1;
Sequence< Reference< XInterface > > aDestSeq( rSeq.getLength() - 1 );
// getArray on a const sequence is faster
const Reference< XInterface > * pSource = ((const Sequence< Reference< XInterface > > &)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;
}
#ifdef _MSC_VER
#pragma warning( disable: 4786 )
#endif
OInterfaceIteratorHelper::OInterfaceIteratorHelper( OInterfaceContainerHelper & rCont_ )
SAL_THROW( () )
: 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 = sal_True;
nRemain = aData.pAsSequence->getLength();
}
else if( aData.pAsInterface )
{
aData.pAsInterface->acquire();
nRemain = 1;
}
else
nRemain = 0;
}
OInterfaceIteratorHelper::~OInterfaceIteratorHelper() SAL_THROW( () )
{
sal_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 = sal_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() SAL_THROW( () )
{
if( nRemain )
{
nRemain--;
if( bIsList )
// typecase to const,so the getArray method is faster
return aData.pAsSequence->getConstArray()[nRemain].get();
else if( aData.pAsInterface )
return aData.pAsInterface;
}
// exception
return 0;
}
void OInterfaceIteratorHelper::remove() SAL_THROW( () )
{
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_ ) SAL_THROW( () )
: rMutex( rMutex_ )
, bInUse( sal_False )
, bIsList( sal_False )
{
}
OInterfaceContainerHelper::~OInterfaceContainerHelper() SAL_THROW( () )
{
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 SAL_THROW( () )
{
MutexGuard aGuard( rMutex );
if( bIsList )
return aData.pAsSequence->getLength();
else if( aData.pAsInterface )
return 1;
return 0;
}
Sequence< Reference<XInterface> > OInterfaceContainerHelper::getElements() const SAL_THROW( () )
{
MutexGuard aGuard( rMutex );
if( bIsList )
return *aData.pAsSequence;
else if( aData.pAsInterface )
{
Reference<XInterface> x( aData.pAsInterface );
return Sequence< Reference< XInterface > >( &x, 1 );
}
return Sequence< Reference< XInterface > >();
}
void OInterfaceContainerHelper::copyAndResetInUse() SAL_THROW( () )
{
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 = sal_False;
}
}
sal_Int32 OInterfaceContainerHelper::addInterface( const Reference<XInterface> & rListener ) SAL_THROW( () )
{
OSL_ASSERT( rListener.is() );
MutexGuard aGuard( rMutex );
if( bInUse )
copyAndResetInUse();
if( bIsList )
{
sal_Int32 nLen = aData.pAsSequence->getLength();
realloc( *aData.pAsSequence, nLen +1 );
aData.pAsSequence->getArray()[ nLen ] = rListener;
return nLen +1;
}
else 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 = sal_True;
return 2;
}
else
{
aData.pAsInterface = rListener.get();
if( rListener.is() )
rListener->acquire();
return 1;
}
}
sal_Int32 OInterfaceContainerHelper::removeInterface( const Reference<XInterface> & rListener ) SAL_THROW( () )
{
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 direkt, but is is is much
// more 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 = sal_False;
return 1;
}
else
return aData.pAsSequence->getLength();
}
else if( aData.pAsInterface && Reference<XInterface>( aData.pAsInterface ) == rListener )
{
aData.pAsInterface->release();
aData.pAsInterface = 0;
}
return aData.pAsInterface ? 1 : 0;
}
void OInterfaceContainerHelper::disposeAndClear( const EventObject & rEvt ) SAL_THROW( () )
{
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 = NULL;
bIsList = sal_False;
bInUse = sal_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() SAL_THROW( () )
{
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 = 0;
bIsList = sal_False;
bInUse = sal_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_ )
SAL_THROW( () )
: rMutex( rMutex_ )
{
m_pMap = new t_type2ptr();
}
OMultiTypeInterfaceContainerHelper::~OMultiTypeInterfaceContainerHelper()
SAL_THROW( () )
{
t_type2ptr * pMap = (t_type2ptr *)m_pMap;
t_type2ptr::iterator iter = pMap->begin();
t_type2ptr::iterator end = pMap->end();
while( iter != end )
{
delete (OInterfaceContainerHelper*)(*iter).second;
(*iter).second = 0;
++iter;
}
delete pMap;
}
Sequence< Type > OMultiTypeInterfaceContainerHelper::getContainedTypes() const
SAL_THROW( () )
{
t_type2ptr * pMap = (t_type2ptr *)m_pMap;
t_type2ptr::size_type nSize;
::osl::MutexGuard aGuard( rMutex );
nSize = pMap->size();
if( nSize )
{
::com::sun::star::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( ((OInterfaceContainerHelper*)(*iter).second)->getLength() )
// yes, put the type in the array
pArray[i++] = (*iter).first;
++iter;
}
if( (t_type2ptr::size_type)i != nSize ) {
// may be empty container, reduce the sequence to the right size
aInterfaceTypes = ::com::sun::star::uno::Sequence< Type >( pArray, i );
}
return aInterfaceTypes;
}
return ::com::sun::star::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
SAL_THROW( () )
{
::osl::MutexGuard aGuard( rMutex );
t_type2ptr * pMap = (t_type2ptr *)m_pMap;
t_type2ptr::iterator iter = findType( pMap, rKey );
if( iter != pMap->end() )
return (OInterfaceContainerHelper*) (*iter).second;
return 0;
}
sal_Int32 OMultiTypeInterfaceContainerHelper::addInterface(
const Type & rKey, const Reference< XInterface > & rListener )
SAL_THROW( () )
{
::osl::MutexGuard aGuard( rMutex );
t_type2ptr * pMap = (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 );
}
else
return ((OInterfaceContainerHelper*)(*iter).second)->addInterface( rListener );
}
sal_Int32 OMultiTypeInterfaceContainerHelper::removeInterface(
const Type & rKey, const Reference< XInterface > & rListener )
SAL_THROW( () )
{
::osl::MutexGuard aGuard( rMutex );
// search container with id nUik
t_type2ptr * pMap = (t_type2ptr *)m_pMap;
t_type2ptr::iterator iter = findType( pMap, rKey );
// container found?
if( iter != pMap->end() )
return ((OInterfaceContainerHelper*)(*iter).second)->removeInterface( rListener );
// no container with this id. Always return 0
return 0;
}
void OMultiTypeInterfaceContainerHelper::disposeAndClear( const EventObject & rEvt )
SAL_THROW( () )
{
t_type2ptr::size_type nSize = 0;
OInterfaceContainerHelper ** ppListenerContainers = NULL;
{
::osl::MutexGuard aGuard( rMutex );
t_type2ptr * pMap = (t_type2ptr *)m_pMap;
nSize = pMap->size();
if( nSize )
{
typedef OInterfaceContainerHelper* ppp;
ppListenerContainers = 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++] = (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 );
}
delete [] ppListenerContainers;
}
void OMultiTypeInterfaceContainerHelper::clear()
SAL_THROW( () )
{
::osl::MutexGuard aGuard( rMutex );
t_type2ptr * pMap = (t_type2ptr *)m_pMap;
t_type2ptr::iterator iter = pMap->begin();
t_type2ptr::iterator end = pMap->end();
while( iter != end )
{
((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_ )
SAL_THROW( () )
: m_pMap( NULL )
, rMutex( rMutex_ )
{
// delay pMap allocation until necessary.
}
OMultiTypeInterfaceContainerHelperInt32::~OMultiTypeInterfaceContainerHelperInt32()
SAL_THROW( () )
{
if (!m_pMap)
return;
t_long2ptr * pMap = (t_long2ptr *)m_pMap;
t_long2ptr::iterator iter = pMap->begin();
t_long2ptr::iterator end = pMap->end();
while( iter != end )
{
delete (OInterfaceContainerHelper*)(*iter).second;
(*iter).second = 0;
++iter;
}
delete pMap;
}
Sequence< sal_Int32 > OMultiTypeInterfaceContainerHelperInt32::getContainedTypes() const
SAL_THROW( () )
{
t_long2ptr * pMap = (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( ((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
SAL_THROW( () )
{
::osl::MutexGuard aGuard( rMutex );
if (!m_pMap)
return 0;
t_long2ptr * pMap = (t_long2ptr *)m_pMap;
t_long2ptr::iterator iter = findLong( pMap, rKey );
if( iter != pMap->end() )
return (OInterfaceContainerHelper*) (*iter).second;
return 0;
}
sal_Int32 OMultiTypeInterfaceContainerHelperInt32::addInterface(
const sal_Int32 & rKey, const Reference< XInterface > & rListener )
SAL_THROW( () )
{
::osl::MutexGuard aGuard( rMutex );
if (!m_pMap)
m_pMap = new t_long2ptr();
t_long2ptr * pMap = (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 ((OInterfaceContainerHelper*)(*iter).second)->addInterface( rListener );
}
sal_Int32 OMultiTypeInterfaceContainerHelperInt32::removeInterface(
const sal_Int32 & rKey, const Reference< XInterface > & rListener )
SAL_THROW( () )
{
::osl::MutexGuard aGuard( rMutex );
if (!m_pMap)
return 0;
// search container with id nUik
t_long2ptr * pMap = (t_long2ptr *)m_pMap;
t_long2ptr::iterator iter = findLong( pMap, rKey );
// container found?
if( iter != pMap->end() )
return ((OInterfaceContainerHelper*)(*iter).second)->removeInterface( rListener );
// no container with this id. Always return 0
return 0;
}
void OMultiTypeInterfaceContainerHelperInt32::disposeAndClear( const EventObject & rEvt )
SAL_THROW( () )
{
t_long2ptr::size_type nSize = 0;
OInterfaceContainerHelper ** ppListenerContainers = NULL;
{
::osl::MutexGuard aGuard( rMutex );
if (!m_pMap)
return;
t_long2ptr * pMap = (t_long2ptr *)m_pMap;
nSize = pMap->size();
if( nSize )
{
typedef OInterfaceContainerHelper* ppp;
ppListenerContainers = 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++] = (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 );
}
delete [] ppListenerContainers;
}
void OMultiTypeInterfaceContainerHelperInt32::clear()
SAL_THROW( () )
{
::osl::MutexGuard aGuard( rMutex );
if (!m_pMap)
return;
t_long2ptr * pMap = (t_long2ptr *)m_pMap;
t_long2ptr::iterator iter = pMap->begin();
t_long2ptr::iterator end = pMap->end();
while( iter != end )
{
((OInterfaceContainerHelper*)(*iter).second)->clear();
++iter;
}
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */