462 lines
16 KiB
C++
462 lines
16 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/implbase.hxx>
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#include <cppuhelper/compbase.hxx>
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#include <osl/diagnose.h>
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#include <rtl/instance.hxx>
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#include <rtl/string.hxx>
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#include <rtl/uuid.h>
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#include <com/sun/star/lang/XComponent.hpp>
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#include "com/sun/star/uno/RuntimeException.hpp"
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using namespace ::osl;
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using namespace ::com::sun::star;
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using namespace ::com::sun::star::uno;
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using rtl::OUString;
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using rtl::OString;
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namespace
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{
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class theImplHelperInitMutex : public rtl::Static<Mutex, theImplHelperInitMutex>{};
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}
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namespace cppu
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{
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//==================================================================================================
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Mutex & SAL_CALL getImplHelperInitMutex(void) SAL_THROW(())
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{
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return theImplHelperInitMutex::get();
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}
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// ClassDataBase
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//__________________________________________________________________________________________________
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ClassDataBase::ClassDataBase() SAL_THROW(())
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: bOffsetsInit( sal_False )
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, nType2Offset( 0 )
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, nClassCode( 0 )
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, pTypes( 0 )
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, pId( 0 )
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{
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}
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//__________________________________________________________________________________________________
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ClassDataBase::ClassDataBase( sal_Int32 nClassCode_ ) SAL_THROW(())
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: bOffsetsInit( sal_False )
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, nType2Offset( 0 )
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, nClassCode( nClassCode_ )
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, pTypes( 0 )
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, pId( 0 )
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{
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}
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//__________________________________________________________________________________________________
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ClassDataBase::~ClassDataBase() SAL_THROW(())
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{
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delete pTypes;
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delete pId;
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for ( sal_Int32 nPos = nType2Offset; nPos--; )
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{
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typelib_typedescription_release(
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(typelib_TypeDescription *)((ClassData *)this)->arType2Offset[nPos].pTD );
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}
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}
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// ClassData
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//__________________________________________________________________________________________________
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void ClassData::writeTypeOffset( const Type & rType, sal_Int32 nOffset ) SAL_THROW(())
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{
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arType2Offset[nType2Offset].nOffset = nOffset;
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arType2Offset[nType2Offset].pTD = 0;
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typelib_typedescriptionreference_getDescription(
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(typelib_TypeDescription **)&arType2Offset[nType2Offset].pTD, rType.getTypeLibType() );
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if (arType2Offset[nType2Offset].pTD)
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++nType2Offset;
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#if OSL_DEBUG_LEVEL > 1
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else
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{
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OString msg( "### cannot get type description for " );
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msg += OUStringToOString( rType.getTypeName(), RTL_TEXTENCODING_ASCII_US );
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OSL_FAIL( msg.getStr() );
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}
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#endif
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}
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//__________________________________________________________________________________________________
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void ClassData::initTypeProvider() SAL_THROW(())
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{
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::osl::MutexGuard aGuard( ::osl::Mutex::getGlobalMutex() );
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if (! pTypes)
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{
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// create id
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pId = new Sequence< sal_Int8 >( 16 );
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rtl_createUuid( (sal_uInt8 *)pId->getArray(), 0, sal_True );
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// collect types
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Sequence< Type > * types = new Sequence< Type >(
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nType2Offset + 1 + (nClassCode == 4 ? 2 : nClassCode) );
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Type * pTypeAr = types->getArray();
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// given types
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sal_Int32 nPos = nType2Offset;
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while (nPos--)
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pTypeAr[nPos] = ((typelib_TypeDescription *)arType2Offset[nPos].pTD)->pWeakRef;
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// XTypeProvider
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pTypeAr[nType2Offset] = ::getCppuType( (const Reference< lang::XTypeProvider > *)0 );
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// class code extra types: [[XComponent,] XWeak[, XAggregation]]
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switch (nClassCode)
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{
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case 4:
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pTypeAr[nType2Offset +2] = ::getCppuType( (const Reference< lang::XComponent > *)0 );
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pTypeAr[nType2Offset +1] = ::getCppuType( (const Reference< XWeak > *)0 );
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break;
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case 3:
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pTypeAr[nType2Offset +3] = ::getCppuType( (const Reference< lang::XComponent > *)0 );
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case 2:
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pTypeAr[nType2Offset +2] = ::getCppuType( (const Reference< XAggregation > *)0 );
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case 1:
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pTypeAr[nType2Offset +1] = ::getCppuType( (const Reference< XWeak > *)0 );
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}
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pTypes = types;
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}
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}
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//__________________________________________________________________________________________________
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Sequence< Type > ClassData::getTypes() SAL_THROW(())
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{
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if (! pTypes)
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initTypeProvider();
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return *pTypes;
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}
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//__________________________________________________________________________________________________
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Sequence< sal_Int8 > ClassData::getImplementationId() SAL_THROW(())
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{
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if (! pTypes)
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initTypeProvider();
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return *pId;
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}
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//--------------------------------------------------------------------------------------------------
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static inline sal_Bool td_equals(
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typelib_TypeDescription * pTD, typelib_TypeDescriptionReference * pType )
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SAL_THROW(())
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{
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return (pTD->pWeakRef == pType ||
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(pTD->pTypeName->length == pType->pTypeName->length &&
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rtl_ustr_compare( pTD->pTypeName->buffer, pType->pTypeName->buffer ) == 0));
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}
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//__________________________________________________________________________________________________
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Any ClassData::query( const Type & rType, lang::XTypeProvider * pBase ) SAL_THROW(())
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{
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if (rType == ::getCppuType( (const Reference< XInterface > *)0 ))
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return Any( &pBase, ::getCppuType( (const Reference< XInterface > *)0 ) );
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for ( sal_Int32 nPos = 0; nPos < nType2Offset; ++nPos )
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{
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const Type_Offset & rTO = arType2Offset[nPos];
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typelib_InterfaceTypeDescription * pTD = rTO.pTD;
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while (pTD)
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{
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if (td_equals( (typelib_TypeDescription *)pTD,
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*(typelib_TypeDescriptionReference **)&rType ))
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{
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void * pInterface = (char *)pBase + rTO.nOffset;
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return Any( &pInterface, (typelib_TypeDescription *)pTD );
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}
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pTD = pTD->pBaseTypeDescription;
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}
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}
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if (rType == ::getCppuType( (const Reference< lang::XTypeProvider > *)0 ))
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return Any( &pBase, ::getCppuType( (const Reference< lang::XTypeProvider > *)0 ) );
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return Any();
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}
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//##################################################################################################
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//##################################################################################################
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//##################################################################################################
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// WeakComponentImplHelperBase
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//__________________________________________________________________________________________________
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WeakComponentImplHelperBase::WeakComponentImplHelperBase( Mutex & rMutex )
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SAL_THROW(())
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: rBHelper( rMutex )
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{
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}
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//__________________________________________________________________________________________________
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WeakComponentImplHelperBase::~WeakComponentImplHelperBase()
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SAL_THROW(())
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{
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}
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//__________________________________________________________________________________________________
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void WeakComponentImplHelperBase::disposing()
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{
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}
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//__________________________________________________________________________________________________
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Any WeakComponentImplHelperBase::queryInterface( Type const & rType )
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throw (RuntimeException)
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{
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if (rType == ::getCppuType( (Reference< lang::XComponent > const *)0 ))
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{
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void * p = static_cast< lang::XComponent * >( this );
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return Any( &p, rType );
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}
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return OWeakObject::queryInterface( rType );
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}
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//__________________________________________________________________________________________________
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void WeakComponentImplHelperBase::acquire()
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throw ()
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{
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OWeakObject::acquire();
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}
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//__________________________________________________________________________________________________
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void WeakComponentImplHelperBase::release()
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throw ()
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{
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if (osl_atomic_decrement( &m_refCount ) == 0) {
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// ensure no other references are created, via the weak connection point, from now on
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disposeWeakConnectionPoint();
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// restore reference count:
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osl_atomic_increment( &m_refCount );
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if (! rBHelper.bDisposed) {
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try {
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dispose();
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}
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catch (RuntimeException const& exc) { // don't break throw ()
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OSL_FAIL(
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OUStringToOString(
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exc.Message, RTL_TEXTENCODING_ASCII_US ).getStr() );
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static_cast<void>(exc);
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}
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OSL_ASSERT( rBHelper.bDisposed );
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}
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OWeakObject::release();
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}
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}
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//__________________________________________________________________________________________________
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void WeakComponentImplHelperBase::dispose()
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throw (RuntimeException)
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{
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ClearableMutexGuard aGuard( rBHelper.rMutex );
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if (!rBHelper.bDisposed && !rBHelper.bInDispose)
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{
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rBHelper.bInDispose = sal_True;
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aGuard.clear();
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try
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{
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// side effect: keeping a reference to this
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lang::EventObject aEvt( static_cast< OWeakObject * >( this ) );
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try
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{
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rBHelper.aLC.disposeAndClear( aEvt );
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disposing();
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}
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catch (...)
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{
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MutexGuard aGuard2( rBHelper.rMutex );
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// bDisposed and bInDispose must be set in this order:
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rBHelper.bDisposed = sal_True;
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rBHelper.bInDispose = sal_False;
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throw;
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}
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MutexGuard aGuard2( rBHelper.rMutex );
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// bDisposed and bInDispose must be set in this order:
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rBHelper.bDisposed = sal_True;
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rBHelper.bInDispose = sal_False;
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}
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catch (RuntimeException &)
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{
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throw;
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}
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catch (Exception & exc)
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{
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throw RuntimeException(
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OUString(
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"unexpected UNO exception caught: ") +
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exc.Message, Reference< XInterface >() );
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}
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}
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}
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//__________________________________________________________________________________________________
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void WeakComponentImplHelperBase::addEventListener(
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Reference< lang::XEventListener > const & xListener )
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throw (RuntimeException)
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{
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ClearableMutexGuard aGuard( rBHelper.rMutex );
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if (rBHelper.bDisposed || rBHelper.bInDispose)
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{
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aGuard.clear();
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lang::EventObject aEvt( static_cast< OWeakObject * >( this ) );
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xListener->disposing( aEvt );
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}
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else
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{
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rBHelper.addListener( ::getCppuType( &xListener ), xListener );
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}
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}
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//__________________________________________________________________________________________________
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void WeakComponentImplHelperBase::removeEventListener(
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Reference< lang::XEventListener > const & xListener )
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throw (RuntimeException)
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{
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rBHelper.removeListener( ::getCppuType( &xListener ), xListener );
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}
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// WeakAggComponentImplHelperBase
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//__________________________________________________________________________________________________
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WeakAggComponentImplHelperBase::WeakAggComponentImplHelperBase( Mutex & rMutex )
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SAL_THROW(())
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: rBHelper( rMutex )
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{
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}
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//__________________________________________________________________________________________________
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WeakAggComponentImplHelperBase::~WeakAggComponentImplHelperBase()
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SAL_THROW(())
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{
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}
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//__________________________________________________________________________________________________
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void WeakAggComponentImplHelperBase::disposing()
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{
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}
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//__________________________________________________________________________________________________
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Any WeakAggComponentImplHelperBase::queryInterface( Type const & rType )
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throw (RuntimeException)
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{
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return OWeakAggObject::queryInterface( rType );
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}
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//__________________________________________________________________________________________________
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Any WeakAggComponentImplHelperBase::queryAggregation( Type const & rType )
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throw (RuntimeException)
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{
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if (rType == ::getCppuType( (Reference< lang::XComponent > const *)0 ))
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{
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void * p = static_cast< lang::XComponent * >( this );
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return Any( &p, rType );
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}
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return OWeakAggObject::queryAggregation( rType );
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}
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//__________________________________________________________________________________________________
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void WeakAggComponentImplHelperBase::acquire()
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throw ()
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{
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OWeakAggObject::acquire();
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}
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//__________________________________________________________________________________________________
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void WeakAggComponentImplHelperBase::release()
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throw ()
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{
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Reference<XInterface> const xDelegator_(xDelegator);
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if (xDelegator_.is()) {
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OWeakAggObject::release();
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}
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else if (osl_atomic_decrement( &m_refCount ) == 0) {
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// ensure no other references are created, via the weak connection point, from now on
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disposeWeakConnectionPoint();
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// restore reference count:
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osl_atomic_increment( &m_refCount );
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if (! rBHelper.bDisposed) {
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try {
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dispose();
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}
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catch (RuntimeException const& exc) { // don't break throw ()
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OSL_FAIL(
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OUStringToOString(
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exc.Message, RTL_TEXTENCODING_ASCII_US ).getStr() );
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static_cast<void>(exc);
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}
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OSL_ASSERT( rBHelper.bDisposed );
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}
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OWeakAggObject::release();
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}
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}
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//__________________________________________________________________________________________________
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void WeakAggComponentImplHelperBase::dispose()
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throw (RuntimeException)
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{
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ClearableMutexGuard aGuard( rBHelper.rMutex );
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if (!rBHelper.bDisposed && !rBHelper.bInDispose)
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{
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rBHelper.bInDispose = sal_True;
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aGuard.clear();
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try
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{
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// side effect: keeping a reference to this
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lang::EventObject aEvt( static_cast< OWeakObject * >( this ) );
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try
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{
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rBHelper.aLC.disposeAndClear( aEvt );
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disposing();
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}
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catch (...)
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{
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MutexGuard aGuard2( rBHelper.rMutex );
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// bDisposed and bInDispose must be set in this order:
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rBHelper.bDisposed = sal_True;
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rBHelper.bInDispose = sal_False;
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throw;
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}
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MutexGuard aGuard2( rBHelper.rMutex );
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// bDisposed and bInDispose must be set in this order:
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rBHelper.bDisposed = sal_True;
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rBHelper.bInDispose = sal_False;
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}
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catch (RuntimeException &)
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{
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throw;
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}
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catch (Exception & exc)
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{
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throw RuntimeException(
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OUString(
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"unexpected UNO exception caught: ") +
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exc.Message, Reference< XInterface >() );
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}
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}
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}
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//__________________________________________________________________________________________________
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void WeakAggComponentImplHelperBase::addEventListener(
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Reference< lang::XEventListener > const & xListener )
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throw (RuntimeException)
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{
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ClearableMutexGuard aGuard( rBHelper.rMutex );
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if (rBHelper.bDisposed || rBHelper.bInDispose)
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{
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aGuard.clear();
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lang::EventObject aEvt( static_cast< OWeakObject * >( this ) );
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xListener->disposing( aEvt );
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}
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else
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{
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rBHelper.addListener( ::getCppuType( &xListener ), xListener );
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}
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}
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//__________________________________________________________________________________________________
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void WeakAggComponentImplHelperBase::removeEventListener(
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Reference< lang::XEventListener > const & xListener )
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throw (RuntimeException)
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{
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rBHelper.removeListener( ::getCppuType( &xListener ), xListener );
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}
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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