341 lines
12 KiB
C++
341 lines
12 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 <malloc.h>
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#include <sal/alloca.h>
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#include <com/sun/star/uno/genfunc.hxx>
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#include "com/sun/star/uno/RuntimeException.hpp"
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#include <uno/data.h>
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#include "bridge.hxx"
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#include "types.hxx"
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#include "unointerfaceproxy.hxx"
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#include "vtables.hxx"
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#include "share.hxx"
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#include "callvirtualmethod.hxx"
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using namespace ::com::sun::star::uno;
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namespace
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{
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static void cpp_call(
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bridges::cpp_uno::shared::UnoInterfaceProxy * pThis,
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bridges::cpp_uno::shared::VtableSlot aVtableSlot,
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typelib_TypeDescriptionReference * pReturnTypeRef,
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sal_Int32 nParams, typelib_MethodParameter * pParams,
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void * pUnoReturn, void * pUnoArgs[], uno_Any ** ppUnoExc )
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{
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// max space for: [complex ret ptr], values|ptr ...
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char * pCppStack =
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(char *)alloca( sizeof(sal_Int32) + ((nParams+2) * sizeof(sal_Int64)) );
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char * pCppStackStart = pCppStack;
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// return
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typelib_TypeDescription * pReturnTypeDescr = 0;
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TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef );
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assert(pReturnTypeDescr);
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void * pCppReturn = 0; // if != 0 && != pUnoReturn, needs reconversion
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if (pReturnTypeDescr)
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{
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if (bridges::cpp_uno::shared::isSimpleType( pReturnTypeDescr ))
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{
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pCppReturn = pUnoReturn; // direct way for simple types
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}
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else
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{
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// complex return via ptr
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pCppReturn = *(void **)pCppStack
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= (bridges::cpp_uno::shared::relatesToInterfaceType(
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pReturnTypeDescr )
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? alloca( pReturnTypeDescr->nSize )
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: pUnoReturn); // direct way
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pCppStack += sizeof(void *);
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}
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}
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// push this
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void * pAdjustedThisPtr = reinterpret_cast< void ** >(pThis->getCppI())
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+ aVtableSlot.offset;
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*(void**)pCppStack = pAdjustedThisPtr;
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pCppStack += sizeof( void* );
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// stack space
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static_assert(sizeof(void *) == sizeof(sal_Int32), "### unexpected size!");
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// args
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void ** pCppArgs = (void **)alloca( 3 * sizeof(void *) * nParams );
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// indices of values this have to be converted (interface conversion cpp<=>uno)
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sal_Int32 * pTempIndices = (sal_Int32 *)(pCppArgs + nParams);
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// type descriptions for reconversions
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typelib_TypeDescription ** ppTempParamTypeDescr = (typelib_TypeDescription **)(pCppArgs + (2 * nParams));
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sal_Int32 nTempIndices = 0;
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for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos )
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{
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const typelib_MethodParameter & rParam = pParams[nPos];
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typelib_TypeDescription * pParamTypeDescr = 0;
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TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef );
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if (!rParam.bOut
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&& bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr ))
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{
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uno_copyAndConvertData( pCppArgs[nPos] = pCppStack, pUnoArgs[nPos], pParamTypeDescr,
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pThis->getBridge()->getUno2Cpp() );
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switch (pParamTypeDescr->eTypeClass)
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{
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case typelib_TypeClass_HYPER:
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case typelib_TypeClass_UNSIGNED_HYPER:
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case typelib_TypeClass_DOUBLE:
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pCppStack += sizeof(sal_Int32); // extra long
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}
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// no longer needed
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TYPELIB_DANGER_RELEASE( pParamTypeDescr );
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}
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else // ptr to complex value | ref
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{
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if (! rParam.bIn) // is pure out
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{
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// cpp out is constructed mem, uno out is not!
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uno_constructData(
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*(void **)pCppStack = pCppArgs[nPos] = alloca( pParamTypeDescr->nSize ),
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pParamTypeDescr );
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pTempIndices[nTempIndices] = nPos; // default constructed for cpp call
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// will be released at reconversion
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ppTempParamTypeDescr[nTempIndices++] = pParamTypeDescr;
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}
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// is in/inout
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else if (bridges::cpp_uno::shared::relatesToInterfaceType(
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pParamTypeDescr ))
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{
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uno_copyAndConvertData(
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*(void **)pCppStack = pCppArgs[nPos] = alloca( pParamTypeDescr->nSize ),
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pUnoArgs[nPos], pParamTypeDescr,
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pThis->getBridge()->getUno2Cpp() );
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pTempIndices[nTempIndices] = nPos; // has to be reconverted
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// will be released at reconversion
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ppTempParamTypeDescr[nTempIndices++] = pParamTypeDescr;
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}
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else // direct way
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{
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*(void **)pCppStack = pCppArgs[nPos] = pUnoArgs[nPos];
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// no longer needed
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TYPELIB_DANGER_RELEASE( pParamTypeDescr );
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}
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}
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pCppStack += sizeof(sal_Int32); // standard parameter length
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}
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try
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{
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assert( !( (pCppStack - pCppStackStart ) & 3) && "UNALIGNED STACK !!! (Please DO panic)");
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CPPU_CURRENT_NAMESPACE::callVirtualMethod(
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pAdjustedThisPtr, aVtableSlot.index,
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pCppReturn, pReturnTypeDescr->eTypeClass,
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(sal_Int32 *)pCppStackStart, (pCppStack - pCppStackStart) / sizeof(sal_Int32) );
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// NO exception occurred...
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*ppUnoExc = 0;
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// reconvert temporary params
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for ( ; nTempIndices--; )
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{
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sal_Int32 nIndex = pTempIndices[nTempIndices];
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typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndices];
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if (pParams[nIndex].bIn)
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{
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if (pParams[nIndex].bOut) // inout
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{
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uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, 0 ); // destroy uno value
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uno_copyAndConvertData( pUnoArgs[nIndex], pCppArgs[nIndex], pParamTypeDescr,
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pThis->getBridge()->getCpp2Uno() );
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}
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}
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else // pure out
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{
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uno_copyAndConvertData( pUnoArgs[nIndex], pCppArgs[nIndex], pParamTypeDescr,
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pThis->getBridge()->getCpp2Uno() );
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}
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// destroy temp cpp param => cpp: every param was constructed
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uno_destructData( pCppArgs[nIndex], pParamTypeDescr, cpp_release );
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TYPELIB_DANGER_RELEASE( pParamTypeDescr );
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}
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// return value
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if (pCppReturn && pUnoReturn != pCppReturn)
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{
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uno_copyAndConvertData( pUnoReturn, pCppReturn, pReturnTypeDescr,
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pThis->getBridge()->getCpp2Uno() );
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uno_destructData( pCppReturn, pReturnTypeDescr, cpp_release );
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}
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}
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catch (...)
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{
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// fill uno exception
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fillUnoException( CPPU_CURRENT_NAMESPACE::__cxa_get_globals()->caughtExceptions, *ppUnoExc, pThis->getBridge()->getCpp2Uno() );
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// temporary params
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for ( ; nTempIndices--; )
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{
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sal_Int32 nIndex = pTempIndices[nTempIndices];
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// destroy temp cpp param => cpp: every param was constructed
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uno_destructData( pCppArgs[nIndex], ppTempParamTypeDescr[nTempIndices], cpp_release );
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TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndices] );
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}
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// return type
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if (pReturnTypeDescr)
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TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
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}
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}
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}
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namespace bridges { namespace cpp_uno { namespace shared {
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void unoInterfaceProxyDispatch(
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uno_Interface * pUnoI, const typelib_TypeDescription * pMemberDescr,
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void * pReturn, void * pArgs[], uno_Any ** ppException )
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{
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// is my surrogate
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bridges::cpp_uno::shared::UnoInterfaceProxy * pThis
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= static_cast< bridges::cpp_uno::shared::UnoInterfaceProxy * >(pUnoI);
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typelib_InterfaceTypeDescription * pTypeDescr = pThis->pTypeDescr;
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switch (pMemberDescr->eTypeClass)
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{
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case typelib_TypeClass_INTERFACE_ATTRIBUTE:
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{
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VtableSlot aVtableSlot(
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getVtableSlot(
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reinterpret_cast<
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typelib_InterfaceAttributeTypeDescription const * >(
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pMemberDescr)));
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if (pReturn)
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{
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// dependent dispatch
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cpp_call(
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pThis, aVtableSlot,
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((typelib_InterfaceAttributeTypeDescription *)pMemberDescr)->pAttributeTypeRef,
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0, 0, // no params
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pReturn, pArgs, ppException );
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}
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else
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{
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// is SET
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typelib_MethodParameter aParam;
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aParam.pTypeRef =
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((typelib_InterfaceAttributeTypeDescription *)pMemberDescr)->pAttributeTypeRef;
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aParam.bIn = sal_True;
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aParam.bOut = sal_False;
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typelib_TypeDescriptionReference * pReturnTypeRef = 0;
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OUString aVoidName("void");
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typelib_typedescriptionreference_new(
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&pReturnTypeRef, typelib_TypeClass_VOID, aVoidName.pData );
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// dependent dispatch
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aVtableSlot.index += 1; // get, then set method
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cpp_call(
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pThis, aVtableSlot,
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pReturnTypeRef,
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1, &aParam,
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pReturn, pArgs, ppException );
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typelib_typedescriptionreference_release( pReturnTypeRef );
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}
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break;
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}
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case typelib_TypeClass_INTERFACE_METHOD:
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{
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VtableSlot aVtableSlot(
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getVtableSlot(
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reinterpret_cast<
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typelib_InterfaceMethodTypeDescription const * >(
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pMemberDescr)));
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switch (aVtableSlot.index)
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{
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// standard calls
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case 1: // acquire uno interface
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(*pUnoI->acquire)( pUnoI );
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*ppException = 0;
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break;
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case 2: // release uno interface
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(*pUnoI->release)( pUnoI );
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*ppException = 0;
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break;
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case 0: // queryInterface() opt
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{
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typelib_TypeDescription * pTD = 0;
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TYPELIB_DANGER_GET( &pTD, reinterpret_cast< Type * >( pArgs[0] )->getTypeLibType() );
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if (pTD)
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{
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uno_Interface * pInterface = 0;
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(*pThis->pBridge->getUnoEnv()->getRegisteredInterface)(
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pThis->pBridge->getUnoEnv(),
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(void **)&pInterface, pThis->oid.pData, (typelib_InterfaceTypeDescription *)pTD );
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if (pInterface)
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{
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::uno_any_construct(
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reinterpret_cast< uno_Any * >( pReturn ),
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&pInterface, pTD, 0 );
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(*pInterface->release)( pInterface );
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TYPELIB_DANGER_RELEASE( pTD );
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*ppException = 0;
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break;
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}
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TYPELIB_DANGER_RELEASE( pTD );
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}
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} // else perform queryInterface()
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default:
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// dependent dispatch
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cpp_call(
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pThis, aVtableSlot,
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((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->pReturnTypeRef,
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((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->nParams,
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((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->pParams,
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pReturn, pArgs, ppException );
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}
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break;
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}
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default:
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{
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::com::sun::star::uno::RuntimeException aExc(
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"illegal member type description!",
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::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >() );
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Type const & rExcType = cppu::UnoType<decltype(aExc)>::get();
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// binary identical null reference
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::uno_type_any_construct( *ppException, &aExc, rExcType.getTypeLibType(), 0 );
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}
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}
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}
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} } }
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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