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442 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* This file incorporates work covered by the following license notice:
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed
* with this work for additional information regarding copyright
* ownership. The ASF licenses this file to you under the Apache
* License, Version 2.0 (the "License"); you may not use this file
* except in compliance with the License. You may obtain a copy of
* the License at http://www.apache.org/licenses/LICENSE-2.0 .
*/
#include <sal/alloca.h>
#include <exception>
#include <typeinfo>
#include <rtl/alloc.h>
#include <com/sun/star/uno/genfunc.hxx>
#include <com/sun/star/uno/RuntimeException.hpp>
#include <o3tl/runtimetooustring.hxx>
#include <uno/data.h>
#include <bridge.hxx>
#include <types.hxx>
#include <unointerfaceproxy.hxx>
#include <vtables.hxx>
#include "abi.hxx"
#include "callvirtualmethod.hxx"
#include "share.hxx"
using namespace ::com::sun::star::uno;
namespace {
// Functions for easier insertion of values to registers or stack
// pSV - pointer to the source
// nr - order of the value [will be increased if stored to register]
// pFPR, pGPR - pointer to the registers
// pDS - pointer to the stack [will be increased if stored here]
// The value in %xmm register is already prepared to be retrieved as a float,
// thus we treat float and double the same
void INSERT_FLOAT_DOUBLE(
void const * pSV, sal_uInt32 & nr, double * pFPR, sal_uInt64 *& pDS)
{
if ( nr < x86_64::MAX_SSE_REGS )
pFPR[nr++] = *static_cast<double const *>( pSV );
else
*pDS++ = *static_cast<sal_uInt64 const *>( pSV ); // verbatim!
}
void INSERT_INT64(
void const * pSV, sal_uInt32 & nr, sal_uInt64 * pGPR, sal_uInt64 *& pDS)
{
if ( nr < x86_64::MAX_GPR_REGS )
pGPR[nr++] = *static_cast<sal_uInt64 const *>( pSV );
else
*pDS++ = *static_cast<sal_uInt64 const *>( pSV );
}
void INSERT_INT32(
void const * pSV, sal_uInt32 & nr, sal_uInt64 * pGPR, sal_uInt64 *& pDS)
{
if ( nr < x86_64::MAX_GPR_REGS )
pGPR[nr++] = *static_cast<sal_uInt32 const *>( pSV );
else
*pDS++ = *static_cast<sal_uInt32 const *>( pSV );
}
void INSERT_INT16(
void const * pSV, sal_uInt32 & nr, sal_uInt64 * pGPR, sal_uInt64 *& pDS)
{
if ( nr < x86_64::MAX_GPR_REGS )
pGPR[nr++] = *static_cast<sal_uInt16 const *>( pSV );
else
*pDS++ = *static_cast<sal_uInt16 const *>( pSV );
}
void INSERT_INT8(
void const * pSV, sal_uInt32 & nr, sal_uInt64 * pGPR, sal_uInt64 *& pDS)
{
if ( nr < x86_64::MAX_GPR_REGS )
pGPR[nr++] = *static_cast<sal_uInt8 const *>( pSV );
else
*pDS++ = *static_cast<sal_uInt8 const *>( pSV );
}
}
static void cpp_call(
bridges::cpp_uno::shared::UnoInterfaceProxy * pThis,
bridges::cpp_uno::shared::VtableSlot aVtableSlot,
typelib_TypeDescriptionReference * pReturnTypeRef,
sal_Int32 nParams, typelib_MethodParameter * pParams,
void * pUnoReturn, void * pUnoArgs[], uno_Any ** ppUnoExc )
{
// Maximum space for [complex ret ptr], values | ptr ...
// (but will be used less - some of the values will be in pGPR and pFPR)
sal_uInt64 *pStack = static_cast<sal_uInt64 *>(__builtin_alloca( (nParams + 3) * sizeof(sal_uInt64) ));
sal_uInt64 *pStackStart = pStack;
sal_uInt64 pGPR[x86_64::MAX_GPR_REGS];
sal_uInt32 nGPR = 0;
double pFPR[x86_64::MAX_SSE_REGS];
sal_uInt32 nFPR = 0;
// Return
typelib_TypeDescription * pReturnTypeDescr = nullptr;
TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef );
assert(pReturnTypeDescr);
void * pCppReturn = nullptr; // if != 0 && != pUnoReturn, needs reconversion (see below)
bool bSimpleReturn = true;
if ( pReturnTypeDescr )
{
if ( x86_64::return_in_hidden_param( pReturnTypeRef ) )
bSimpleReturn = false;
if ( bSimpleReturn )
pCppReturn = pUnoReturn; // direct way for simple types
else
{
// complex return via ptr
pCppReturn = bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr )?
__builtin_alloca( pReturnTypeDescr->nSize ) : pUnoReturn;
INSERT_INT64( &pCppReturn, nGPR, pGPR, pStack );
}
}
// Push "this" pointer
void * pAdjustedThisPtr = reinterpret_cast< void ** >( pThis->getCppI() ) + aVtableSlot.offset;
INSERT_INT64( &pAdjustedThisPtr, nGPR, pGPR, pStack );
// Args
void ** pCppArgs = static_cast<void **>(alloca( 3 * sizeof(void *) * nParams ));<--- Obsolete function 'alloca' called. [+]The obsolete function 'alloca' is called. In C++11 and later it is recommended to use std::array<> or a dynamically allocated array instead. The function 'alloca' is dangerous for many reasons (http://stackoverflow.com/questions/1018853/why-is-alloca-not-considered-good-practice and http://linux.die.net/man/3/alloca).
// Indices of values this have to be converted (interface conversion cpp<=>uno)
sal_Int32 * pTempIndices = reinterpret_cast<sal_Int32 *>(pCppArgs + nParams);
// Type descriptions for reconversions
typelib_TypeDescription ** ppTempParamTypeDescr = reinterpret_cast<typelib_TypeDescription **>(pCppArgs + (2 * nParams));
sal_Int32 nTempIndices = 0;
for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos )
{
const typelib_MethodParameter & rParam = pParams[nPos];
typelib_TypeDescription * pParamTypeDescr = nullptr;
TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef );
if (!rParam.bOut && bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr ))
{
uno_copyAndConvertData( pCppArgs[nPos] = alloca( 8 ), pUnoArgs[nPos], pParamTypeDescr,<--- Obsolete function 'alloca' called. [+]The obsolete function 'alloca' is called. In C++11 and later it is recommended to use std::array<> or a dynamically allocated array instead. The function 'alloca' is dangerous for many reasons (http://stackoverflow.com/questions/1018853/why-is-alloca-not-considered-good-practice and http://linux.die.net/man/3/alloca).
pThis->getBridge()->getUno2Cpp() );
switch (pParamTypeDescr->eTypeClass)
{
case typelib_TypeClass_HYPER:
case typelib_TypeClass_UNSIGNED_HYPER:
INSERT_INT64( pCppArgs[nPos], nGPR, pGPR, pStack );
break;
case typelib_TypeClass_LONG:
case typelib_TypeClass_UNSIGNED_LONG:
case typelib_TypeClass_ENUM:
INSERT_INT32( pCppArgs[nPos], nGPR, pGPR, pStack );
break;
case typelib_TypeClass_SHORT:
case typelib_TypeClass_CHAR:
case typelib_TypeClass_UNSIGNED_SHORT:
INSERT_INT16( pCppArgs[nPos], nGPR, pGPR, pStack );
break;
case typelib_TypeClass_BOOLEAN:
case typelib_TypeClass_BYTE:
INSERT_INT8( pCppArgs[nPos], nGPR, pGPR, pStack );
break;
case typelib_TypeClass_FLOAT:
case typelib_TypeClass_DOUBLE:
INSERT_FLOAT_DOUBLE( pCppArgs[nPos], nFPR, pFPR, pStack );
break;
default:
break;
}
// no longer needed
TYPELIB_DANGER_RELEASE( pParamTypeDescr );
}
else // ptr to complex value | ref
{
if (! rParam.bIn) // is pure out
{
// cpp out is constructed mem, uno out is not!
uno_constructData(
pCppArgs[nPos] = alloca( pParamTypeDescr->nSize ),<--- Obsolete function 'alloca' called. [+]The obsolete function 'alloca' is called. In C++11 and later it is recommended to use std::array<> or a dynamically allocated array instead. The function 'alloca' is dangerous for many reasons (http://stackoverflow.com/questions/1018853/why-is-alloca-not-considered-good-practice and http://linux.die.net/man/3/alloca).
pParamTypeDescr );
pTempIndices[nTempIndices] = nPos; // default constructed for cpp call
// will be released at reconversion
ppTempParamTypeDescr[nTempIndices++] = pParamTypeDescr;
}
// is in/inout
else if (bridges::cpp_uno::shared::relatesToInterfaceType( pParamTypeDescr ))
{
uno_copyAndConvertData(
pCppArgs[nPos] = alloca( pParamTypeDescr->nSize ),<--- Obsolete function 'alloca' called. [+]The obsolete function 'alloca' is called. In C++11 and later it is recommended to use std::array<> or a dynamically allocated array instead. The function 'alloca' is dangerous for many reasons (http://stackoverflow.com/questions/1018853/why-is-alloca-not-considered-good-practice and http://linux.die.net/man/3/alloca).
pUnoArgs[nPos], pParamTypeDescr, pThis->getBridge()->getUno2Cpp() );
pTempIndices[nTempIndices] = nPos; // has to be reconverted
// will be released at reconversion
ppTempParamTypeDescr[nTempIndices++] = pParamTypeDescr;
}
else // direct way
{
pCppArgs[nPos] = pUnoArgs[nPos];
// no longer needed
TYPELIB_DANGER_RELEASE( pParamTypeDescr );
}
INSERT_INT64( &(pCppArgs[nPos]), nGPR, pGPR, pStack );
}
}
try
{
try {
CPPU_CURRENT_NAMESPACE::callVirtualMethod(
pAdjustedThisPtr, aVtableSlot.index,
pCppReturn, pReturnTypeRef, bSimpleReturn,
pStackStart, ( pStack - pStackStart ),
pGPR, pFPR );
} catch (const Exception &) {
throw;
} catch (const std::exception & e) {
throw RuntimeException(
"C++ code threw " + o3tl::runtimeToOUString(typeid(e).name())
+ ": " + o3tl::runtimeToOUString(e.what()));
} catch (...) {
throw RuntimeException("C++ code threw unknown exception");
}
*ppUnoExc = nullptr;
// reconvert temporary params
for ( ; nTempIndices--; )
{
sal_Int32 nIndex = pTempIndices[nTempIndices];
typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndices];
if (pParams[nIndex].bIn)
{
if (pParams[nIndex].bOut) // inout
{
uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, nullptr ); // destroy uno value
uno_copyAndConvertData( pUnoArgs[nIndex], pCppArgs[nIndex], pParamTypeDescr,
pThis->getBridge()->getCpp2Uno() );
}
}
else // pure out
{
uno_copyAndConvertData( pUnoArgs[nIndex], pCppArgs[nIndex], pParamTypeDescr,
pThis->getBridge()->getCpp2Uno() );
}
// destroy temp cpp param => cpp: every param was constructed
uno_destructData( pCppArgs[nIndex], pParamTypeDescr, cpp_release );
TYPELIB_DANGER_RELEASE( pParamTypeDescr );
}
// return value
if (pCppReturn && pUnoReturn != pCppReturn)
{
uno_copyAndConvertData( pUnoReturn, pCppReturn, pReturnTypeDescr,
pThis->getBridge()->getCpp2Uno() );
uno_destructData( pCppReturn, pReturnTypeDescr, cpp_release );
}
}
catch (...)
{
// fill uno exception
CPPU_CURRENT_NAMESPACE::fillUnoException(*ppUnoExc, pThis->getBridge()->getCpp2Uno());
// temporary params
for ( ; nTempIndices--; )
{
sal_Int32 nIndex = pTempIndices[nTempIndices];
// destroy temp cpp param => cpp: every param was constructed
uno_destructData( pCppArgs[nIndex], ppTempParamTypeDescr[nTempIndices], cpp_release );
TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndices] );
}
// return type
if (pReturnTypeDescr)
TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
}
}
namespace bridges::cpp_uno::shared {
void unoInterfaceProxyDispatch(
uno_Interface * pUnoI, const typelib_TypeDescription * pMemberDescr,
void * pReturn, void * pArgs[], uno_Any ** ppException )
{
// is my surrogate
bridges::cpp_uno::shared::UnoInterfaceProxy * pThis
= static_cast< bridges::cpp_uno::shared::UnoInterfaceProxy * >(pUnoI);
#if OSL_DEBUG_LEVEL > 0
typelib_InterfaceTypeDescription * pTypeDescr = pThis->pTypeDescr;
#endif
switch (pMemberDescr->eTypeClass)
{
case typelib_TypeClass_INTERFACE_ATTRIBUTE:
{
#if OSL_DEBUG_LEVEL > 0
// determine vtable call index
sal_Int32 nMemberPos = reinterpret_cast<typelib_InterfaceMemberTypeDescription const *>(pMemberDescr)->nPosition;
assert(nMemberPos < pTypeDescr->nAllMembers);
#endif
VtableSlot aVtableSlot(
getVtableSlot(
reinterpret_cast<
typelib_InterfaceAttributeTypeDescription const * >(
pMemberDescr)));
if (pReturn)
{
// dependent dispatch
cpp_call(
pThis, aVtableSlot,
reinterpret_cast<typelib_InterfaceAttributeTypeDescription const *>(pMemberDescr)->pAttributeTypeRef,
0, nullptr, // no params
pReturn, pArgs, ppException );
}
else
{
// is SET
typelib_MethodParameter aParam;
aParam.pTypeRef =
reinterpret_cast<typelib_InterfaceAttributeTypeDescription const *>(pMemberDescr)->pAttributeTypeRef;
aParam.bIn = true;
aParam.bOut = false;
typelib_TypeDescriptionReference * pReturnTypeRef = nullptr;
OUString aVoidName("void");
typelib_typedescriptionreference_new(
&pReturnTypeRef, typelib_TypeClass_VOID, aVoidName.pData );
// dependent dispatch
aVtableSlot.index += 1; // get, then set method
cpp_call(
pThis, aVtableSlot, // get, then set method
pReturnTypeRef,
1, &aParam,
pReturn, pArgs, ppException );
typelib_typedescriptionreference_release( pReturnTypeRef );
}
break;
}
case typelib_TypeClass_INTERFACE_METHOD:
{
#if OSL_DEBUG_LEVEL > 0
// determine vtable call index
sal_Int32 nMemberPos = reinterpret_cast<typelib_InterfaceMemberTypeDescription const *>(pMemberDescr)->nPosition;
assert(nMemberPos < pTypeDescr->nAllMembers);
#endif
VtableSlot aVtableSlot(
getVtableSlot(
reinterpret_cast<
typelib_InterfaceMethodTypeDescription const * >(
pMemberDescr)));
switch (aVtableSlot.index)
{
// standard calls
case 1: // acquire uno interface
(*pUnoI->acquire)( pUnoI );
*ppException = nullptr;
break;
case 2: // release uno interface
(*pUnoI->release)( pUnoI );
*ppException = nullptr;
break;
case 0: // queryInterface() opt
{
typelib_TypeDescription * pTD = nullptr;
TYPELIB_DANGER_GET( &pTD, static_cast< Type * >( pArgs[0] )->getTypeLibType() );
if (pTD)
{
uno_Interface * pInterface = nullptr;
(*pThis->getBridge()->getUnoEnv()->getRegisteredInterface)(
pThis->getBridge()->getUnoEnv(),
reinterpret_cast<void **>(&pInterface), pThis->oid.pData, reinterpret_cast<typelib_InterfaceTypeDescription *>(pTD) );
if (pInterface)
{
::uno_any_construct(
static_cast< uno_Any * >( pReturn ),
&pInterface, pTD, nullptr );
(*pInterface->release)( pInterface );
TYPELIB_DANGER_RELEASE( pTD );
*ppException = nullptr;
break;
}
TYPELIB_DANGER_RELEASE( pTD );
}
[[fallthrough]]; // else perform queryInterface()
}
default:
// dependent dispatch
cpp_call(
pThis, aVtableSlot,
reinterpret_cast<typelib_InterfaceMethodTypeDescription const *>(pMemberDescr)->pReturnTypeRef,
reinterpret_cast<typelib_InterfaceMethodTypeDescription const *>(pMemberDescr)->nParams,
reinterpret_cast<typelib_InterfaceMethodTypeDescription const *>(pMemberDescr)->pParams,
pReturn, pArgs, ppException );
}
break;
}
default:
{
::com::sun::star::uno::RuntimeException aExc(
"illegal member type description!",
::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >() );
Type const & rExcType = cppu::UnoType<decltype(aExc)>::get();
// binary identical null reference
::uno_type_any_construct( *ppException, &aExc, rExcType.getTypeLibType(), nullptr );
}
}
}
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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