| /************************************************************** |
| * |
| * 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 |
| * |
| * Unless required by applicable law or agreed to in writing, |
| * software distributed under the License is distributed on an |
| * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY |
| * KIND, either express or implied. See the License for the |
| * specific language governing permissions and limitations |
| * under the License. |
| * |
| *************************************************************/ |
| |
| |
| |
| // MARKER(update_precomp.py): autogen include statement, do not remove |
| #include "precompiled_cppuhelper.hxx" |
| #include <sal/alloca.h> |
| |
| #include <string.h> |
| #include <osl/diagnose.h> |
| #include <rtl/byteseq.hxx> |
| #include <rtl/ustrbuf.hxx> |
| #include <rtl/uuid.h> |
| #include <cppuhelper/compbase_ex.hxx> |
| |
| #include "com/sun/star/uno/RuntimeException.hpp" |
| |
| using namespace ::cppu; |
| using namespace ::osl; |
| using namespace ::rtl; |
| using namespace ::com::sun::star; |
| using namespace ::com::sun::star::uno; |
| |
| namespace cppu |
| { |
| |
| /** Shared mutex for implementation helper initialization. |
| Not for public use. |
| */ |
| ::osl::Mutex & SAL_CALL getImplHelperInitMutex(void) SAL_THROW( () ); |
| |
| //-------------------------------------------------------------------------------------------------- |
| static inline void checkInterface( Type const & rType ) |
| SAL_THROW( (RuntimeException) ) |
| { |
| if (TypeClass_INTERFACE != rType.getTypeClass()) |
| { |
| OUStringBuffer buf( 64 ); |
| buf.appendAscii( RTL_CONSTASCII_STRINGPARAM("querying for interface \"") ); |
| buf.append( rType.getTypeName() ); |
| buf.appendAscii( RTL_CONSTASCII_STRINGPARAM("\": no interface type!") ); |
| OUString msg( buf.makeStringAndClear() ); |
| #if OSL_DEBUG_LEVEL > 0 |
| OString str( OUStringToOString( msg, RTL_TEXTENCODING_ASCII_US ) ); |
| OSL_ENSURE( 0, str.getStr() ); |
| #endif |
| throw RuntimeException( msg, Reference< XInterface >() ); |
| } |
| } |
| //-------------------------------------------------------------------------------------------------- |
| static inline bool isXInterface( rtl_uString * pStr ) SAL_THROW( () ) |
| { |
| return (((OUString const *)&pStr)->equalsAsciiL( RTL_CONSTASCII_STRINGPARAM("com.sun.star.uno.XInterface") ) != sal_False); |
| } |
| //-------------------------------------------------------------------------------------------------- |
| static inline void * makeInterface( sal_IntPtr nOffset, void * that ) SAL_THROW( () ) |
| { |
| return (((char *)that) + nOffset); |
| } |
| //-------------------------------------------------------------------------------------------------- |
| static inline bool __td_equals( |
| typelib_TypeDescriptionReference const * pTDR1, |
| typelib_TypeDescriptionReference const * pTDR2 ) |
| SAL_THROW( () ) |
| { |
| return ((pTDR1 == pTDR2) || |
| ((OUString const *)&pTDR1->pTypeName)->equals( *(OUString const *)&pTDR2->pTypeName ) != sal_False); |
| } |
| //-------------------------------------------------------------------------------------------------- |
| static inline type_entry * __getTypeEntries( class_data * cd ) |
| SAL_THROW( (RuntimeException) ) |
| { |
| type_entry * pEntries = cd->m_typeEntries; |
| if (! cd->m_storedTypeRefs) // not inited? |
| { |
| MutexGuard guard( getImplHelperInitMutex() ); |
| if (! cd->m_storedTypeRefs) // not inited? |
| { |
| // get all types |
| for ( sal_Int32 n = cd->m_nTypes; n--; ) |
| { |
| type_entry * pEntry = &pEntries[ n ]; |
| Type const & rType = (*pEntry->m_type.getCppuType)( 0 ); |
| OSL_ENSURE( rType.getTypeClass() == TypeClass_INTERFACE, "### wrong helper init: expected interface!" ); |
| OSL_ENSURE( ! isXInterface( rType.getTypeLibType()->pTypeName ), "### want to implement XInterface: template argument is XInterface?!?!?!" ); |
| if (rType.getTypeClass() != TypeClass_INTERFACE) |
| { |
| OUStringBuffer buf( 48 ); |
| buf.appendAscii( RTL_CONSTASCII_STRINGPARAM("type \"") ); |
| buf.append( rType.getTypeName() ); |
| buf.appendAscii( RTL_CONSTASCII_STRINGPARAM("\" is no interface type!") ); |
| OUString msg( buf.makeStringAndClear() ); |
| #if OSL_DEBUG_LEVEL > 0 |
| OString str( OUStringToOString( msg, RTL_TEXTENCODING_ASCII_US ) ); |
| OSL_ENSURE( 0, str.getStr() ); |
| #endif |
| throw RuntimeException( msg, Reference< XInterface >() ); |
| } |
| // ref is statically held by getCppuType() |
| pEntry->m_type.typeRef = rType.getTypeLibType(); |
| } |
| cd->m_storedTypeRefs = sal_True; |
| } |
| } |
| return pEntries; |
| } |
| //-------------------------------------------------------------------------------------------------- |
| static inline void __fillTypes( Type * types, class_data * cd ) |
| SAL_THROW( (RuntimeException) ) |
| { |
| type_entry * pEntries = __getTypeEntries( cd ); |
| for ( sal_Int32 n = cd->m_nTypes; n--; ) |
| { |
| types[ n ] = pEntries[ n ].m_type.typeRef; |
| } |
| } |
| //-------------------------------------------------------------------------------------------------- |
| namespace { |
| |
| bool recursivelyFindType( |
| typelib_TypeDescriptionReference const * demandedType, |
| typelib_InterfaceTypeDescription const * type, sal_IntPtr * offset) |
| { |
| // This code assumes that the vtables of a multiple-inheritance class (the |
| // offset amount by which to adjust the this pointer) follow one another in |
| // the object layout, and that they contain slots for the inherited classes |
| // in a specifc order. In theory, that need not hold for any given |
| // platform; in practice, it seems to work well on all supported platforms: |
| next: |
| for (sal_Int32 i = 0; i < type->nBaseTypes; ++i) { |
| if (i > 0) { |
| *offset += sizeof (void *); |
| } |
| typelib_InterfaceTypeDescription const * base = type->ppBaseTypes[i]; |
| // ignore XInterface: |
| if (base->nBaseTypes > 0) { |
| if (__td_equals( |
| reinterpret_cast< |
| typelib_TypeDescriptionReference const * >(base), |
| demandedType)) |
| { |
| return true; |
| } |
| // Profiling showed that it is important to speed up the common case |
| // of only one base: |
| if (type->nBaseTypes == 1) { |
| type = base; |
| goto next; |
| } |
| if (recursivelyFindType(demandedType, base, offset)) { |
| return true; |
| } |
| } |
| } |
| return false; |
| } |
| |
| } |
| |
| static inline void * __queryDeepNoXInterface( |
| typelib_TypeDescriptionReference * pDemandedTDR, class_data * cd, void * that ) |
| SAL_THROW( (RuntimeException) ) |
| { |
| type_entry * pEntries = __getTypeEntries( cd ); |
| sal_Int32 nTypes = cd->m_nTypes; |
| sal_Int32 n; |
| |
| // try top interfaces without getting td |
| for ( n = 0; n < nTypes; ++n ) |
| { |
| if (__td_equals( pEntries[ n ].m_type.typeRef, pDemandedTDR )) |
| { |
| return makeInterface( pEntries[ n ].m_offset, that ); |
| } |
| } |
| // query deep getting td |
| for ( n = 0; n < nTypes; ++n ) |
| { |
| typelib_TypeDescription * pTD = 0; |
| TYPELIB_DANGER_GET( &pTD, pEntries[ n ].m_type.typeRef ); |
| if (pTD) |
| { |
| // exclude top (already tested) and bottom (XInterface) interface |
| OSL_ENSURE( |
| reinterpret_cast< typelib_InterfaceTypeDescription * >(pTD)-> |
| nBaseTypes > 0, |
| "### want to implement XInterface:" |
| " template argument is XInterface?!?!?!" ); |
| sal_IntPtr offset = pEntries[n].m_offset; |
| bool found = recursivelyFindType( |
| pDemandedTDR, |
| reinterpret_cast< typelib_InterfaceTypeDescription * >(pTD), |
| &offset); |
| TYPELIB_DANGER_RELEASE( pTD ); |
| if (found) { |
| return makeInterface( offset, that ); |
| } |
| } |
| else |
| { |
| OUStringBuffer buf( 64 ); |
| buf.appendAscii( RTL_CONSTASCII_STRINGPARAM("cannot get type description for type \"") ); |
| buf.append( pEntries[ n ].m_type.typeRef->pTypeName ); |
| buf.appendAscii( RTL_CONSTASCII_STRINGPARAM("\"!") ); |
| OUString msg( buf.makeStringAndClear() ); |
| #if OSL_DEBUG_LEVEL > 0 |
| OString str( OUStringToOString( msg, RTL_TEXTENCODING_ASCII_US ) ); |
| OSL_ENSURE( 0, str.getStr() ); |
| #endif |
| throw RuntimeException( msg, Reference< XInterface >() ); |
| } |
| } |
| return 0; |
| } |
| |
| // ImplHelper |
| //================================================================================================== |
| Any SAL_CALL ImplHelper_query( |
| Type const & rType, class_data * cd, void * that ) |
| SAL_THROW( (RuntimeException) ) |
| { |
| checkInterface( rType ); |
| typelib_TypeDescriptionReference * pTDR = rType.getTypeLibType(); |
| |
| void * p; |
| // shortcut for XInterface |
| if (isXInterface( pTDR->pTypeName )) |
| { |
| // take first one |
| p = makeInterface( cd->m_typeEntries[ 0 ].m_offset, that ); |
| } |
| else |
| { |
| p = __queryDeepNoXInterface( pTDR, cd, that ); |
| if (! p) |
| { |
| return Any(); |
| } |
| } |
| return Any( &p, pTDR ); |
| } |
| //================================================================================================== |
| Any SAL_CALL ImplHelper_queryNoXInterface( |
| Type const & rType, class_data * cd, void * that ) |
| SAL_THROW( (RuntimeException) ) |
| { |
| checkInterface( rType ); |
| typelib_TypeDescriptionReference * pTDR = rType.getTypeLibType(); |
| |
| void * p = __queryDeepNoXInterface( pTDR, cd, that ); |
| if (p) |
| { |
| return Any( &p, pTDR ); |
| } |
| else |
| { |
| return Any(); |
| } |
| } |
| //================================================================================================== |
| Sequence< sal_Int8 > SAL_CALL ImplHelper_getImplementationId( class_data * cd ) |
| SAL_THROW( (RuntimeException) ) |
| { |
| if (! cd->m_createdId) |
| { |
| sal_uInt8 * id = (sal_uInt8 *)alloca( 16 ); |
| ::rtl_createUuid( (sal_uInt8 *)id, 0, sal_True ); |
| |
| MutexGuard guard( getImplHelperInitMutex() ); |
| if (! cd->m_createdId) |
| { |
| memcpy( cd->m_id, id, 16 ); |
| cd->m_createdId = sal_True; |
| } |
| } |
| |
| sal_Sequence * seq = 0; |
| ::rtl_byte_sequence_constructFromArray( &seq, cd->m_id, 16 ); |
| return Sequence< sal_Int8 >( seq, SAL_NO_ACQUIRE ); |
| } |
| //================================================================================================== |
| Sequence< Type > SAL_CALL ImplHelper_getTypes( |
| class_data * cd ) |
| SAL_THROW( (RuntimeException) ) |
| { |
| Sequence< Type > types( cd->m_nTypes ); |
| Type * pTypes = types.getArray(); |
| __fillTypes( pTypes, cd ); |
| return types; |
| } |
| //================================================================================================== |
| Sequence< Type > SAL_CALL ImplInhHelper_getTypes( |
| class_data * cd, Sequence< Type > const & rAddTypes ) |
| SAL_THROW( (RuntimeException) ) |
| { |
| sal_Int32 nImplTypes = cd->m_nTypes; |
| sal_Int32 nAddTypes = rAddTypes.getLength(); |
| Sequence< Type > types( nImplTypes + nAddTypes ); |
| Type * pTypes = types.getArray(); |
| __fillTypes( pTypes, cd ); |
| // append base types |
| Type const * pAddTypes = rAddTypes.getConstArray(); |
| while (nAddTypes--) |
| { |
| pTypes[ nImplTypes + nAddTypes ] = pAddTypes[ nAddTypes ]; |
| } |
| return types; |
| } |
| |
| // WeakImplHelper |
| //================================================================================================== |
| Any SAL_CALL WeakImplHelper_query( |
| Type const & rType, class_data * cd, void * that, OWeakObject * pBase ) |
| SAL_THROW( (RuntimeException) ) |
| { |
| checkInterface( rType ); |
| typelib_TypeDescriptionReference * pTDR = rType.getTypeLibType(); |
| |
| // shortcut XInterface to OWeakObject |
| if (! isXInterface( pTDR->pTypeName )) |
| { |
| void * p = __queryDeepNoXInterface( pTDR, cd, that ); |
| if (p) |
| { |
| return Any( &p, pTDR ); |
| } |
| } |
| return pBase->OWeakObject::queryInterface( rType ); |
| } |
| //================================================================================================== |
| Sequence< Type > SAL_CALL WeakImplHelper_getTypes( |
| class_data * cd ) |
| SAL_THROW( (RuntimeException) ) |
| { |
| sal_Int32 nTypes = cd->m_nTypes; |
| Sequence< Type > types( nTypes +1 ); |
| Type * pTypes = types.getArray(); |
| __fillTypes( pTypes, cd ); |
| pTypes[ nTypes ] = ::getCppuType( (Reference< XWeak > const *)0 ); |
| return types; |
| } |
| |
| // WeakAggImplHelper |
| //================================================================================================== |
| Any SAL_CALL WeakAggImplHelper_queryAgg( |
| Type const & rType, class_data * cd, void * that, OWeakAggObject * pBase ) |
| SAL_THROW( (RuntimeException) ) |
| { |
| checkInterface( rType ); |
| typelib_TypeDescriptionReference * pTDR = rType.getTypeLibType(); |
| |
| // shortcut XInterface to OWeakAggObject |
| if (! isXInterface( pTDR->pTypeName )) |
| { |
| void * p = __queryDeepNoXInterface( pTDR, cd, that ); |
| if (p) |
| { |
| return Any( &p, pTDR ); |
| } |
| } |
| return pBase->OWeakAggObject::queryAggregation( rType ); |
| } |
| //================================================================================================== |
| Sequence< Type > SAL_CALL WeakAggImplHelper_getTypes( |
| class_data * cd ) |
| SAL_THROW( (RuntimeException) ) |
| { |
| sal_Int32 nTypes = cd->m_nTypes; |
| Sequence< Type > types( nTypes +2 ); |
| Type * pTypes = types.getArray(); |
| __fillTypes( pTypes, cd ); |
| pTypes[ nTypes++ ] = ::getCppuType( (Reference< XWeak > const *)0 ); |
| pTypes[ nTypes ] = ::getCppuType( (const Reference< XAggregation > *)0 ); |
| return types; |
| } |
| |
| // WeakComponentImplHelper |
| //================================================================================================== |
| Any SAL_CALL WeakComponentImplHelper_query( |
| Type const & rType, class_data * cd, void * that, WeakComponentImplHelperBase * pBase ) |
| SAL_THROW( (RuntimeException) ) |
| { |
| checkInterface( rType ); |
| typelib_TypeDescriptionReference * pTDR = rType.getTypeLibType(); |
| |
| // shortcut XInterface to WeakComponentImplHelperBase |
| if (! isXInterface( pTDR->pTypeName )) |
| { |
| void * p = __queryDeepNoXInterface( pTDR, cd, that ); |
| if (p) |
| { |
| return Any( &p, pTDR ); |
| } |
| } |
| return pBase->WeakComponentImplHelperBase::queryInterface( rType ); |
| } |
| //================================================================================================== |
| Sequence< Type > SAL_CALL WeakComponentImplHelper_getTypes( |
| class_data * cd ) |
| SAL_THROW( (RuntimeException) ) |
| { |
| sal_Int32 nTypes = cd->m_nTypes; |
| Sequence< Type > types( nTypes +2 ); |
| Type * pTypes = types.getArray(); |
| __fillTypes( pTypes, cd ); |
| pTypes[ nTypes++ ] = ::getCppuType( (Reference< XWeak > const *)0 ); |
| pTypes[ nTypes ] = ::getCppuType( (Reference< lang::XComponent > const *)0 ); |
| return types; |
| } |
| |
| // WeakAggComponentImplHelper |
| //================================================================================================== |
| Any SAL_CALL WeakAggComponentImplHelper_queryAgg( |
| Type const & rType, class_data * cd, void * that, WeakAggComponentImplHelperBase * pBase ) |
| SAL_THROW( (RuntimeException) ) |
| { |
| checkInterface( rType ); |
| typelib_TypeDescriptionReference * pTDR = rType.getTypeLibType(); |
| |
| // shortcut XInterface to WeakAggComponentImplHelperBase |
| if (! isXInterface( pTDR->pTypeName )) |
| { |
| void * p = __queryDeepNoXInterface( pTDR, cd, that ); |
| if (p) |
| { |
| return Any( &p, pTDR ); |
| } |
| } |
| return pBase->WeakAggComponentImplHelperBase::queryAggregation( rType ); |
| } |
| //================================================================================================== |
| Sequence< Type > SAL_CALL WeakAggComponentImplHelper_getTypes( |
| class_data * cd ) |
| SAL_THROW( (RuntimeException) ) |
| { |
| sal_Int32 nTypes = cd->m_nTypes; |
| Sequence< Type > types( nTypes +3 ); |
| Type * pTypes = types.getArray(); |
| __fillTypes( pTypes, cd ); |
| pTypes[ nTypes++ ] = ::getCppuType( (Reference< XWeak > const *)0 ); |
| pTypes[ nTypes++ ] = ::getCppuType( (const Reference< XAggregation > *)0 ); |
| pTypes[ nTypes ] = ::getCppuType( (const Reference< lang::XComponent > *)0 ); |
| return types; |
| } |
| |
| } |
