Files
libreoffice/bridges/source/cpp_uno/gcc3_linux_sparc/cpp2uno.cxx
Jens-Heiner Rechtien b5e9363a3d INTEGRATION: CWS ooo20030412 (1.1.4); FILE ADDED
2003/04/11 09:09:44 mh 1.1.4.1: join: from ooo11beta
2003-04-28 15:28:48 +00:00

679 lines
24 KiB
C++

/*************************************************************************
*
* $RCSfile: cpp2uno.cxx,v $
*
* $Revision: 1.2 $
*
* last change: $Author: hr $ $Date: 2003-04-28 16:28:42 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (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.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
#define LEAK_STATIC_DATA
// #define TRACE(x) OSL_TRACE(x)
#define TRACE(x)
#include <malloc.h>
#include <list>
#include <map>
#include <typeinfo>
#ifndef _RTL_ALLOC_H_
#include <rtl/alloc.h>
#endif
#ifndef _OSL_MUTEX_HXX_
#include <osl/mutex.hxx>
#endif
#ifndef _TYPELIB_TYPEDESCRIPTION_HXX_
#include <typelib/typedescription.hxx>
#endif
#ifndef _UNO_DATA_H_
#include <uno/data.h>
#endif
#ifndef _BRIDGES_CPP_UNO_BRIDGE_HXX_
#include <bridges/cpp_uno/bridge.hxx>
#endif
#ifndef _BRIDGES_CPP_UNO_TYPE_MISC_HXX_
#include <bridges/cpp_uno/type_misc.hxx>
#endif
#include "share.hxx"
using namespace com::sun::star::uno;
using namespace std;
using namespace osl;
using namespace rtl;
namespace CPPU_CURRENT_NAMESPACE
{
//==================================================================================================
rtl_StandardModuleCount g_moduleCount = MODULE_COUNT_INIT;
//==================================================================================================
static typelib_TypeClass cpp2uno_call(
cppu_cppInterfaceProxy * pThis,
const typelib_TypeDescription * pMemberTypeDescr,
typelib_TypeDescriptionReference * pReturnTypeRef, // 0 indicates void return
sal_Int32 nParams, typelib_MethodParameter * pParams,
void ** pCallStack,
sal_Int64 * pRegisterReturn /* space for register return */ )
{
// pCallStack: [ret ptr], this, params
char * pCppStack = (char *)pCallStack;
// return
typelib_TypeDescription * pReturnTypeDescr = 0;
if (pReturnTypeRef)
TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef );
void * pUnoReturn = 0;
void * pCppReturn = 0; // complex return ptr: if != 0 && != pUnoReturn, reconversion need
if (pReturnTypeDescr)
{
if (cppu_isSimpleType( pReturnTypeDescr ))
pUnoReturn = pRegisterReturn; // direct way for simple types
else // complex return via ptr (pCppReturn)
{
pCppReturn = *(void**)pCppStack;
pUnoReturn = (cppu_relatesToInterface( pReturnTypeDescr )
? alloca( pReturnTypeDescr->nSize )
: pCppReturn); // direct way
pCppStack += sizeof( void* );
}
}
// pop this
pCppStack += sizeof( void* );
// stack space
OSL_ENSURE( sizeof(void *) == sizeof(sal_Int32), "### unexpected size!" );
// parameters
void ** pUnoArgs = (void **)alloca( 4 * sizeof(void *) * nParams );
void ** pCppArgs = pUnoArgs + nParams;
// indizes of values this have to be converted (interface conversion cpp<=>uno)
sal_Int32 * pTempIndizes = (sal_Int32 *)(pUnoArgs + (2 * nParams));
// type descriptions for reconversions
typelib_TypeDescription ** ppTempParamTypeDescr = (typelib_TypeDescription **)(pUnoArgs + (3 * nParams));
sal_Int32 nTempIndizes = 0;
for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos )
{
const typelib_MethodParameter & rParam = pParams[nPos];
typelib_TypeDescription * pParamTypeDescr = 0;
TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef );
if (!rParam.bOut && cppu_isSimpleType( pParamTypeDescr )) // value
{
pCppArgs[nPos] = pUnoArgs[nPos] =
adjustPointer( pCppStack, pParamTypeDescr );
switch (pParamTypeDescr->eTypeClass)
{
case typelib_TypeClass_HYPER:
case typelib_TypeClass_UNSIGNED_HYPER:
case typelib_TypeClass_DOUBLE:
pCppStack += sizeof(sal_Int32); // extra long
}
// no longer needed
TYPELIB_DANGER_RELEASE( pParamTypeDescr );
}
else // ptr to complex value | ref
{
pCppArgs[nPos] = *(void **)pCppStack;
if (! rParam.bIn) // is pure out
{
// uno out is unconstructed mem!
pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize );
pTempIndizes[nTempIndizes] = nPos;
// will be released at reconversion
ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
}
// is in/inout
else if (cppu_relatesToInterface( pParamTypeDescr ))
{
uno_copyAndConvertData( pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize ),
*(void **)pCppStack, pParamTypeDescr,
&pThis->pBridge->aCpp2Uno );
pTempIndizes[nTempIndizes] = nPos; // has to be reconverted
// will be released at reconversion
ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
}
else // direct way
{
pUnoArgs[nPos] = *(void **)pCppStack;
// no longer needed
TYPELIB_DANGER_RELEASE( pParamTypeDescr );
}
}
pCppStack += sizeof(sal_Int32); // standard parameter length
}
// ExceptionHolder
uno_Any aUnoExc; // Any will be constructed by callee
uno_Any * pUnoExc = &aUnoExc;
// invoke uno dispatch call
(*pThis->pUnoI->pDispatcher)( pThis->pUnoI, pMemberTypeDescr, pUnoReturn, pUnoArgs, &pUnoExc );
// in case an exception occured...
if (pUnoExc)
{
// destruct temporary in/inout params
for ( ; nTempIndizes--; )
{
sal_Int32 nIndex = pTempIndizes[nTempIndizes];
if (pParams[nIndex].bIn) // is in/inout => was constructed
uno_destructData( pUnoArgs[nIndex], ppTempParamTypeDescr[nTempIndizes], 0 );
TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndizes] );
}
if (pReturnTypeDescr)
TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
raiseException( &aUnoExc, &pThis->pBridge->aUno2Cpp ); // has to destruct the any
// is here for dummy
return typelib_TypeClass_VOID;
}
else // else no exception occured...
{
// temporary params
for ( ; nTempIndizes--; )
{
sal_Int32 nIndex = pTempIndizes[nTempIndizes];
typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndizes];
if (pParams[nIndex].bOut) // inout/out
{
// convert and assign
uno_destructData( pCppArgs[nIndex], pParamTypeDescr, cpp_release );
uno_copyAndConvertData( pCppArgs[nIndex], pUnoArgs[nIndex], pParamTypeDescr,
&pThis->pBridge->aUno2Cpp );
}
// destroy temp uno param
uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, 0 );
TYPELIB_DANGER_RELEASE( pParamTypeDescr );
}
// return
if (pCppReturn) // has complex return
{
if (pUnoReturn != pCppReturn) // needs reconversion
{
uno_copyAndConvertData( pCppReturn, pUnoReturn, pReturnTypeDescr,
&pThis->pBridge->aUno2Cpp );
// destroy temp uno return
uno_destructData( pUnoReturn, pReturnTypeDescr, 0 );
}
// complex return ptr is set to eax
*(void **)pRegisterReturn = pCppReturn;
}
if (pReturnTypeDescr)
{
typelib_TypeClass eRet = (typelib_TypeClass)pReturnTypeDescr->eTypeClass;
TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
return eRet;
}
else
return typelib_TypeClass_VOID;
}
}
//==================================================================================================
static typelib_TypeClass cpp_mediate(
sal_Int32 nVtableCall,
void ** pCallStack,
sal_Int64 * pRegisterReturn /* space for register return */ )
{
OSL_ENSURE( sizeof(sal_Int32)==sizeof(void *), "### unexpected!" );
// pCallStack: this, params
// eventual [ret*] lies at pCallStack -1
// so count down pCallStack by one to keep it simple
// _this_ ptr is patched cppu_XInterfaceProxy object
cppu_cppInterfaceProxy * pCppI = NULL;
pCppI = (cppu_cppInterfaceProxy *)(XInterface *)*pCallStack;
if( nVtableCall & 0x80000000 )
{
pCallStack--;
nVtableCall &= 0x7fffffff;
}
typelib_InterfaceTypeDescription * pTypeDescr = pCppI->pTypeDescr;
OSL_ENSURE( nVtableCall < pTypeDescr->nMapFunctionIndexToMemberIndex,
"### illegal vtable index!" );
if (nVtableCall >= pTypeDescr->nMapFunctionIndexToMemberIndex)
{
throw RuntimeException( OUString::createFromAscii("illegal vtable index!"), (XInterface *)pCppI );
}
// determine called method
OSL_ENSURE( nVtableCall < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!" );
sal_Int32 nMemberPos = pTypeDescr->pMapFunctionIndexToMemberIndex[nVtableCall];
OSL_ENSURE( nMemberPos < pTypeDescr->nAllMembers, "### illegal member index!" );
TypeDescription aMemberDescr( pTypeDescr->ppAllMembers[nMemberPos] );
#if defined BRIDGES_DEBUG
OString cstr( OUStringToOString( aMemberDescr.get()->pTypeName, RTL_TEXTENCODING_ASCII_US ) );
fprintf( stderr, "calling %s, nVtableCall=%d\n", cstr.getStr(), nVtableCall );
#endif
typelib_TypeClass eRet;
switch (aMemberDescr.get()->eTypeClass)
{
case typelib_TypeClass_INTERFACE_ATTRIBUTE:
{
if (pTypeDescr->pMapMemberIndexToFunctionIndex[nMemberPos] == nVtableCall)
{
// is GET method
eRet = cpp2uno_call(
pCppI, aMemberDescr.get(),
((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef,
0, 0, // no params
pCallStack, pRegisterReturn );
}
else
{
// is SET method
typelib_MethodParameter aParam;
aParam.pTypeRef =
((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef;
aParam.bIn = sal_True;
aParam.bOut = sal_False;
eRet = cpp2uno_call(
pCppI, aMemberDescr.get(),
0, // indicates void return
1, &aParam,
pCallStack, pRegisterReturn );
}
break;
}
case typelib_TypeClass_INTERFACE_METHOD:
{
// is METHOD
switch (nVtableCall)
{
case 1: // acquire()
pCppI->acquireProxy(); // non virtual call!
eRet = typelib_TypeClass_VOID;
break;
case 2: // release()
pCppI->releaseProxy(); // non virtual call!
eRet = typelib_TypeClass_VOID;
break;
case 0: // queryInterface() opt
{
typelib_TypeDescription * pTD = 0;
TYPELIB_DANGER_GET( &pTD, reinterpret_cast< Type * >( pCallStack[2] )->getTypeLibType() );
if (pTD)
{
XInterface * pInterface = 0;
(*pCppI->pBridge->pCppEnv->getRegisteredInterface)(
pCppI->pBridge->pCppEnv,
(void **)&pInterface, pCppI->oid.pData, (typelib_InterfaceTypeDescription *)pTD );
if (pInterface)
{
::uno_any_construct(
reinterpret_cast< uno_Any * >( pCallStack[0] ),
&pInterface, pTD, cpp_acquire );
pInterface->release();
TYPELIB_DANGER_RELEASE( pTD );
*(void **)pRegisterReturn = pCallStack[0];
eRet = typelib_TypeClass_ANY;
break;
}
TYPELIB_DANGER_RELEASE( pTD );
}
} // else perform queryInterface()
default:
eRet = cpp2uno_call(
pCppI, aMemberDescr.get(),
((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pReturnTypeRef,
((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->nParams,
((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pParams,
pCallStack, pRegisterReturn );
}
break;
}
default:
{
throw RuntimeException( OUString::createFromAscii("no member description found!"), (XInterface *)pCppI );
// is here for dummy
eRet = typelib_TypeClass_VOID;
}
}
return eRet;
}
//==================================================================================================
class MediateClassData
{
public:
struct ClassDataBuffer
{
void* m_pVTable;
~ClassDataBuffer();
};
private:
map< OUString, ClassDataBuffer* > m_aClassData;
Mutex m_aMutex;
void createVTable( ClassDataBuffer*, typelib_InterfaceTypeDescription* );
public:
const ClassDataBuffer* getClassData( typelib_InterfaceTypeDescription* );
MediateClassData() {}
~MediateClassData();
};
//__________________________________________________________________________________________________
MediateClassData::ClassDataBuffer::~ClassDataBuffer()
{
delete m_pVTable;
}
//__________________________________________________________________________________________________
MediateClassData::~MediateClassData()
{
TRACE( "> calling ~MediateClassData(): freeing mediate vtables... <\n" );
// this MUST be the absolute last one which is called!
for ( map< OUString, ClassDataBuffer* >::iterator iPos( m_aClassData.begin() ); iPos != m_aClassData.end(); ++iPos )
{
// todo
// delete (*iPos).second;
}
}
//__________________________________________________________________________________________________
const MediateClassData::ClassDataBuffer* MediateClassData::getClassData( typelib_InterfaceTypeDescription* pType )
{
MutexGuard aGuard( m_aMutex );
map< OUString, ClassDataBuffer* >::iterator element = m_aClassData.find( pType->aBase.pTypeName );
if( element != m_aClassData.end() )
return (*element).second;
ClassDataBuffer* pBuffer = new ClassDataBuffer();
createVTable( pBuffer, pType );
m_aClassData[ pType->aBase.pTypeName ] = pBuffer;
return pBuffer;
}
//==================================================================================================
/**
* is called on incoming vtable calls
* (called by asm snippets)
*/
static void cpp_vtable_call()
{
int nTableEntry;
void** pCallStack;
volatile sal_Int64 nRegReturn;
// nTableEntry and pCallStack are delivered in registers as usual
// but cpp_vtable_call is declared void.
// the reason is that this way the compiler won't clobber the
// call stack prepared by the assembler snippet to save its input
// registers
// also restore %i2 here which was clobbered to jump here
__asm__( "st %%i0, %0\n\t"
"st %%i1, %1\n\t"
"ld [%%fp+68], %%i0\n\t"
"ld [%%fp+72], %%i1\n\t"
"ld [%%fp+76], %%i2\n\t"
: : "m"(nTableEntry), "m"(pCallStack) );
sal_Bool bComplex = nTableEntry & 0x80000000 ? sal_True : sal_False;
typelib_TypeClass aType =
cpp_mediate( nTableEntry, pCallStack+17, &nRegReturn );
switch( aType )
{
case typelib_TypeClass_BOOLEAN:
case typelib_TypeClass_BYTE:
__asm__( "ld %0, %%l0\n\t"
"ldsb [%%l0], %%i0\n"
: : "m"(&nRegReturn) );
break;
case typelib_TypeClass_CHAR:
case typelib_TypeClass_SHORT:
case typelib_TypeClass_UNSIGNED_SHORT:
__asm__( "ld %0, %%l0\n\t"
"ldsh [%%l0], %%i0\n"
: : "m"(&nRegReturn) );
break;
case typelib_TypeClass_HYPER:
case typelib_TypeClass_UNSIGNED_HYPER:
__asm__( "ld %0, %%l0\n\t"
"ld [%%l0], %%i0\n\t"
"ld %1, %%l0\n\t"
"ld [%%l0], %%i1\n\t"
: : "m"(&nRegReturn), "m"(((long*)&nRegReturn) +1) );
break;
case typelib_TypeClass_FLOAT:
__asm__( "ld %0, %%l0\n\t"
"ld [%%l0], %%f0\n"
: : "m"(&nRegReturn) );
break;
case typelib_TypeClass_DOUBLE:
__asm__( "ld %0, %%l0\n\t"
"ldd [%%l0], %%f0\n"
: : "m"(&nRegReturn) );
break;
case typelib_TypeClass_VOID:
break;
default:
__asm__( "ld %0, %%l0\n\t"
"ld [%%l0], %%i0\n"
: : "m"(&nRegReturn) );
break;
}
if( bComplex )
{
__asm__( "add %i7, 4, %i7\n\t" );
// after call to complex return valued funcion there is an unimp instruction
}
}
//__________________________________________________________________________________________________
void MediateClassData::createVTable( ClassDataBuffer* pBuffer, typelib_InterfaceTypeDescription* pType )
{
// get all member functions
list< sal_Bool > aComplexReturn;
for( int n = 0; n < pType->nAllMembers; n++ )
{
typelib_TypeDescription* pMember = NULL;
TYPELIB_DANGER_GET( &pMember, pType->ppAllMembers[n] );
if( pMember->eTypeClass == typelib_TypeClass_INTERFACE_ATTRIBUTE )
{
typelib_TypeDescription * pRetTD = 0;
TYPELIB_DANGER_GET( &pRetTD, ((typelib_InterfaceAttributeTypeDescription *)pMember)->pAttributeTypeRef );
// get method
aComplexReturn.push_back( !cppu_isSimpleType( pRetTD ) );
// set method
if( ! ((typelib_InterfaceAttributeTypeDescription*)pMember)->bReadOnly )
aComplexReturn.push_back( sal_False );
TYPELIB_DANGER_RELEASE( pRetTD );
}
else
{
typelib_TypeDescription * pRetTD = 0;
TYPELIB_DANGER_GET( &pRetTD, ((typelib_InterfaceMethodTypeDescription *)pMember)->pReturnTypeRef );
aComplexReturn.push_back( !cppu_isSimpleType( pRetTD ) );
TYPELIB_DANGER_RELEASE( pRetTD );
}
TYPELIB_DANGER_RELEASE( pMember );
}
int nSize = aComplexReturn.size();
const int nSnippetSize = 64;
char * pSpace = (char *)rtl_allocateMemory( (2*(nSize+2)*sizeof(void *)) + (nSize*nSnippetSize) );
pBuffer->m_pVTable = (void*)pSpace;
char * pCode = pSpace + (2*(nSize+2)*sizeof(void *));
void ** pvft = (void **)pSpace;
// setup vft and code
for ( sal_Int32 nPos = 0; nPos < nSize; ++nPos )
{
unsigned long * codeSnip = (unsigned long *)(pCode + (nPos*nSnippetSize));
pvft[ nPos ] = codeSnip;
unsigned long nTablePos = nPos;
sal_Bool bComplex = aComplexReturn.front();
if( bComplex )
nTablePos |= 0x80000000;
aComplexReturn.pop_front();
/*
* generate this code
*
* st %o0, [%sp+68] save registers
* st %o1, [%sp+72]
* st %o2, [%sp+76]
* st %o3, [%sp+80]
* st %o4, [%sp+84]
* st %o5, [%sp+88]
*
* mov %sp, %o1 prepare stack ptr for cpp_vtable_call
* sethi %hi( nTablePos ), %o0 prepare table entry
* or %lo( nTablePos ), %o0 (on complex return set high bit
*
* sethi $hi( cpp_vtable_call ), %l0
* or %l0, %lo( cpp_vtable_call ), %l0
* jmp %l0
* nop
*
* Note: %o0 should be restored by cpp_vtable_call if void returned
* %o1 should be restored if not hyper returned
* %o2 must be restored
*
*/
*codeSnip++ = 0xd023a044;
*codeSnip++ = 0xd223a048;
*codeSnip++ = 0xd423a04c;
*codeSnip++ = 0xd623a050;
*codeSnip++ = 0xd823a054;
*codeSnip++ = 0xda23a058;
*codeSnip++ = 0x9210000e;
*codeSnip++ = 0x11000000 | ( nTablePos >> 10 );
*codeSnip++ = 0x90122000 | ( nTablePos & 1023 );
*codeSnip++ = 0x15000000 | ( ((unsigned long)cpp_vtable_call) >> 10 );
*codeSnip++ = 0x9412a000 | ( ((unsigned long)cpp_vtable_call) & 1023 );
*codeSnip++ = 0x81c28000;
*codeSnip++ = 0x01000000;
}
}
//==================================================================================================
void SAL_CALL cppu_cppInterfaceProxy_patchVtable(
XInterface * pCppI, typelib_InterfaceTypeDescription * pTypeDescr ) throw ()
{
static MediateClassData * s_pMediateClassData = 0;
if (! s_pMediateClassData)
{
MutexGuard aGuard( Mutex::getGlobalMutex() );
if (! s_pMediateClassData)
{
#ifdef LEAK_STATIC_DATA
s_pMediateClassData = new MediateClassData();
#else
static MediateClassData s_aMediateClassData;
s_pMediateClassData = &s_aMediateClassData;
#endif
}
}
*(const void **)pCppI = s_pMediateClassData->getClassData( pTypeDescr )->m_pVTable;
}
}
//##################################################################################################
extern "C" SAL_DLLEXPORT sal_Bool SAL_CALL component_canUnload( TimeValue * pTime )
SAL_THROW_EXTERN_C()
{
return CPPU_CURRENT_NAMESPACE::g_moduleCount.canUnload( &CPPU_CURRENT_NAMESPACE::g_moduleCount, pTime );
}
//##################################################################################################
extern "C" SAL_DLLEXPORT void SAL_CALL uno_initEnvironment( uno_Environment * pCppEnv )
SAL_THROW_EXTERN_C()
{
CPPU_CURRENT_NAMESPACE::cppu_cppenv_initEnvironment( pCppEnv );
}
//##################################################################################################
extern "C" SAL_DLLEXPORT void SAL_CALL uno_ext_getMapping(
uno_Mapping ** ppMapping, uno_Environment * pFrom, uno_Environment * pTo )
SAL_THROW_EXTERN_C()
{
CPPU_CURRENT_NAMESPACE::cppu_ext_getMapping( ppMapping, pFrom, pTo );
}