563 lines
20 KiB
C++
563 lines
20 KiB
C++
/*************************************************************************
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*
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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*
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* Copyright 2000, 2010 Oracle and/or its affiliates.
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*
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* OpenOffice.org - a multi-platform office productivity suite
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*
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* This file is part of OpenOffice.org.
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*
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* OpenOffice.org is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License version 3
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* only, as published by the Free Software Foundation.
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*
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* OpenOffice.org is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License version 3 for more details
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* (a copy is included in the LICENSE file that accompanied this code).
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*
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* You should have received a copy of the GNU Lesser General Public License
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* version 3 along with OpenOffice.org. If not, see
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* <http://www.openoffice.org/license.html>
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* for a copy of the LGPLv3 License.
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*
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************************************************************************/
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// MARKER(update_precomp.py): autogen include statement, do not remove
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#include "precompiled_bridges.hxx"
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#include <hash_map>
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#include <sal/alloca.h>
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#include <rtl/alloc.h>
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#include <osl/mutex.hxx>
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#include <uno/data.h>
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#include <typelib/typedescription.hxx>
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#include <bridges/cpp_uno/bridge.hxx>
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#include <bridges/cpp_uno/type_misc.hxx>
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#include "share.hxx"
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using namespace ::osl;
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using namespace ::rtl;
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using namespace ::com::sun::star::uno;
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namespace CPPU_CURRENT_NAMESPACE
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{
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//==================================================================================================
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rtl_StandardModuleCount g_moduleCount = MODULE_COUNT_INIT;
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//==================================================================================================
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static typelib_TypeClass cpp2uno_call(
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cppu_cppInterfaceProxy * pThis,
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const typelib_TypeDescription * pMemberTypeDescr,
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typelib_TypeDescriptionReference * pReturnTypeRef, // 0 indicates void return
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sal_Int32 nParams, typelib_MethodParameter * pParams,
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void ** pCallStack,
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sal_Int64 * pRegisterReturn /* space for register return */ )
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{
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// pCallStack: ret, [return ptr], this, params
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char * pCppStack = (char *)(pCallStack +1);
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// return
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typelib_TypeDescription * pReturnTypeDescr = 0;
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if (pReturnTypeRef)
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TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef );
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void * pUnoReturn = 0;
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void * pCppReturn = 0; // complex return ptr: if != 0 && != pUnoReturn, reconversion need
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if (pReturnTypeDescr)
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{
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if (cppu_isSimpleType( pReturnTypeDescr ))
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{
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pUnoReturn = pRegisterReturn; // direct way for simple types
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}
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else // complex return via ptr (pCppReturn)
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{
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pCppReturn = *(void **)pCppStack;
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pCppStack += sizeof(void *);
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pUnoReturn = (cppu_relatesToInterface( pReturnTypeDescr )
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? alloca( pReturnTypeDescr->nSize )
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: pCppReturn); // direct way
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}
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}
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// pop this
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pCppStack += sizeof( void* );
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// stack space
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OSL_ENSURE( sizeof(void *) == sizeof(sal_Int32), "### unexpected size!" );
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// parameters
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void ** pUnoArgs = (void **)alloca( 4 * sizeof(void *) * nParams );
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void ** pCppArgs = pUnoArgs + nParams;
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// indizes of values this have to be converted (interface conversion cpp<=>uno)
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sal_Int32 * pTempIndizes = (sal_Int32 *)(pUnoArgs + (2 * nParams));
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// type descriptions for reconversions
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typelib_TypeDescription ** ppTempParamTypeDescr = (typelib_TypeDescription **)(pUnoArgs + (3 * nParams));
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sal_Int32 nTempIndizes = 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 && cppu_isSimpleType( pParamTypeDescr )) // value
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{
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pCppArgs[nPos] = pCppStack;
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pUnoArgs[nPos] = pCppStack;
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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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pCppArgs[nPos] = *(void **)pCppStack;
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if (! rParam.bIn) // is pure out
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{
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// uno out is unconstructed mem!
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pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize );
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pTempIndizes[nTempIndizes] = nPos;
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// will be released at reconversion
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ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
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}
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// is in/inout
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else if (cppu_relatesToInterface( pParamTypeDescr ))
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{
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uno_copyAndConvertData( pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize ),
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*(void **)pCppStack, pParamTypeDescr,
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&pThis->pBridge->aCpp2Uno );
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pTempIndizes[nTempIndizes] = nPos; // has to be reconverted
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// will be released at reconversion
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ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
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}
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else // direct way
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{
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pUnoArgs[nPos] = *(void **)pCppStack;
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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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// ExceptionHolder
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uno_Any aUnoExc; // Any will be constructed by callee
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uno_Any * pUnoExc = &aUnoExc;
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// invoke uno dispatch call
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(*pThis->pUnoI->pDispatcher)( pThis->pUnoI, pMemberTypeDescr, pUnoReturn, pUnoArgs, &pUnoExc );
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// in case an exception occured...
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if (pUnoExc)
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{
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// destruct temporary in/inout params
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for ( ; nTempIndizes--; )
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{
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sal_Int32 nIndex = pTempIndizes[nTempIndizes];
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if (pParams[nIndex].bIn) // is in/inout => was constructed
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uno_destructData( pUnoArgs[nIndex], ppTempParamTypeDescr[nTempIndizes], 0 );
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TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndizes] );
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}
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if (pReturnTypeDescr)
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TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
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raiseException( &aUnoExc, &pThis->pBridge->aUno2Cpp ); // has to destruct the any
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// is here for dummy
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return typelib_TypeClass_VOID;
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}
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else // else no exception occured...
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{
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// temporary params
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for ( ; nTempIndizes--; )
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{
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sal_Int32 nIndex = pTempIndizes[nTempIndizes];
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typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndizes];
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if (pParams[nIndex].bOut) // inout/out
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{
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// convert and assign
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uno_destructData( pCppArgs[nIndex], pParamTypeDescr, cpp_release );
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uno_copyAndConvertData( pCppArgs[nIndex], pUnoArgs[nIndex], pParamTypeDescr,
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&pThis->pBridge->aUno2Cpp );
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}
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// destroy temp uno param
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uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, 0 );
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TYPELIB_DANGER_RELEASE( pParamTypeDescr );
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}
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// return
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if (pCppReturn) // has complex return
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{
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if (pUnoReturn != pCppReturn) // needs reconversion
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{
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uno_copyAndConvertData( pCppReturn, pUnoReturn, pReturnTypeDescr,
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&pThis->pBridge->aUno2Cpp );
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// destroy temp uno return
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uno_destructData( pUnoReturn, pReturnTypeDescr, 0 );
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}
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// complex return ptr is set to eax
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*(void **)pRegisterReturn = pCppReturn;
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}
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if (pReturnTypeDescr)
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{
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typelib_TypeClass eRet = (typelib_TypeClass)pReturnTypeDescr->eTypeClass;
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TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
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return eRet;
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}
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else
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return typelib_TypeClass_VOID;
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}
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}
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//==================================================================================================
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static typelib_TypeClass cpp_mediate(
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sal_Int32 nVtableCall,
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void ** pCallStack,
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sal_Int64 * pRegisterReturn /* space for register return */ )
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{
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OSL_ENSURE( sizeof(sal_Int32)==sizeof(void *), "### unexpected!" );
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// pCallStack: ret adr, [ret *], this, params
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// _this_ ptr is patched cppu_XInterfaceProxy object
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cppu_cppInterfaceProxy * pCppI = NULL;
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if( nVtableCall & 0x80000000 )
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{
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nVtableCall &= 0x7fffffff;
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pCppI = (cppu_cppInterfaceProxy *)(XInterface *)*(pCallStack +2);
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}
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else
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{
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pCppI = (cppu_cppInterfaceProxy *)(XInterface *)*(pCallStack +1);
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}
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typelib_InterfaceTypeDescription * pTypeDescr = pCppI->pTypeDescr;
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OSL_ENSURE( nVtableCall < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!" );
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if (nVtableCall >= pTypeDescr->nMapFunctionIndexToMemberIndex)
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{
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throw RuntimeException(
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OUString::createFromAscii("illegal vtable index!"),
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(XInterface *)pCppI );
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}
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// determine called method
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OSL_ENSURE( nVtableCall < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!" );
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sal_Int32 nMemberPos = pTypeDescr->pMapFunctionIndexToMemberIndex[nVtableCall];
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OSL_ENSURE( nMemberPos < pTypeDescr->nAllMembers, "### illegal member index!" );
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TypeDescription aMemberDescr( pTypeDescr->ppAllMembers[nMemberPos] );
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typelib_TypeClass eRet;
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switch (aMemberDescr.get()->eTypeClass)
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{
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case typelib_TypeClass_INTERFACE_ATTRIBUTE:
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{
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if (pTypeDescr->pMapMemberIndexToFunctionIndex[nMemberPos] == nVtableCall)
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{
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// is GET method
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eRet = cpp2uno_call(
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pCppI, aMemberDescr.get(),
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((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef,
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0, 0, // no params
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pCallStack, pRegisterReturn );
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}
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else
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{
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// is SET method
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typelib_MethodParameter aParam;
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aParam.pTypeRef =
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((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef;
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aParam.bIn = sal_True;
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aParam.bOut = sal_False;
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eRet = cpp2uno_call(
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pCppI, aMemberDescr.get(),
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0, // indicates void return
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1, &aParam,
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pCallStack, pRegisterReturn );
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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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// is METHOD
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switch (nVtableCall)
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{
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case 1: // acquire()
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pCppI->acquireProxy(); // non virtual call!
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eRet = typelib_TypeClass_VOID;
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break;
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case 2: // release()
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pCppI->releaseProxy(); // non virtual call!
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eRet = typelib_TypeClass_VOID;
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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 * >( pCallStack[3] )->getTypeLibType() );
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if (pTD)
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{
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XInterface * pInterface = 0;
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(*pCppI->pBridge->pCppEnv->getRegisteredInterface)(
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pCppI->pBridge->pCppEnv,
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(void **)&pInterface, pCppI->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 * >( pCallStack[1] ),
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&pInterface, pTD, cpp_acquire );
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pInterface->release();
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TYPELIB_DANGER_RELEASE( pTD );
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*(void **)pRegisterReturn = pCallStack[1];
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eRet = typelib_TypeClass_ANY;
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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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eRet = cpp2uno_call(
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pCppI, aMemberDescr.get(),
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((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pReturnTypeRef,
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((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->nParams,
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((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pParams,
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pCallStack, pRegisterReturn );
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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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throw RuntimeException(
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OUString::createFromAscii("no member description found!"),
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(XInterface *)pCppI );
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// is here for dummy
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eRet = typelib_TypeClass_VOID;
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}
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}
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return eRet;
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}
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//==================================================================================================
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/**
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* is called on incoming vtable calls
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* (called by asm snippets)
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*/
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static void cpp_vtable_call( int nTableEntry, void** pCallStack ) __attribute__((regparm(2)));
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void cpp_vtable_call( int nTableEntry, void** pCallStack )
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{
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volatile long nRegReturn[2];
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typelib_TypeClass aType = cpp_mediate( nTableEntry, pCallStack, (sal_Int64*)nRegReturn );
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switch( aType )
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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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__asm__( "movl %1, %%edx\n\t"
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"movl %0, %%eax\n"
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: : "m"(nRegReturn[0]), "m"(nRegReturn[1]) );
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break;
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case typelib_TypeClass_FLOAT:
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__asm__( "flds %0\n\t"
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"fstp %%st(0)\n\t"
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"flds %0\n"
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: : "m"(*(float *)nRegReturn) );
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break;
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case typelib_TypeClass_DOUBLE:
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__asm__( "fldl %0\n\t"
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"fstp %%st(0)\n\t"
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"fldl %0\n"
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: : "m"(*(double *)nRegReturn) );
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break;
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// case typelib_TypeClass_UNSIGNED_SHORT:
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// case typelib_TypeClass_SHORT:
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// __asm__( "movswl %0, %%eax\n"
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// : : "m"(nRegReturn) );
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// break;
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default:
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__asm__( "movl %0, %%eax\n"
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: : "m"(nRegReturn[0]) );
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break;
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}
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}
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//==================================================================================================
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class MediateClassData
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{
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typedef ::std::hash_map< OUString, void *, OUStringHash > t_classdata_map;
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t_classdata_map m_map;
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Mutex m_mutex;
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public:
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void const * get_vtable( typelib_InterfaceTypeDescription * pTD ) SAL_THROW( () );
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inline MediateClassData() SAL_THROW( () )
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{}
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~MediateClassData() SAL_THROW( () );
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};
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//__________________________________________________________________________________________________
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MediateClassData::~MediateClassData() SAL_THROW( () )
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{
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OSL_TRACE( "> calling ~MediateClassData(): freeing mediate vtables." );
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for ( t_classdata_map::const_iterator iPos( m_map.begin() ); iPos != m_map.end(); ++iPos )
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{
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::rtl_freeMemory( iPos->second );
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}
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}
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//--------------------------------------------------------------------------------------------------
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static inline void codeSnippet( char * code, sal_uInt32 vtable_pos, bool simple_ret_type ) SAL_THROW( () )
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{
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if (! simple_ret_type)
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vtable_pos |= 0x80000000;
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OSL_ASSERT( sizeof (long) == 4 );
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// mov $nPos, %eax
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*code++ = 0xb8;
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*(long *)code = vtable_pos;
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code += sizeof (long);
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// mov %esp, %edx
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*code++ = 0x89;
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*code++ = 0xe2;
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// jmp cpp_vtable_call
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*code++ = 0xe9;
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*(long *)code = ((char *)cpp_vtable_call) - code - sizeof (long);
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}
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//__________________________________________________________________________________________________
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void const * MediateClassData::get_vtable( typelib_InterfaceTypeDescription * pTD ) SAL_THROW( () )
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{
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void * buffer;
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// avoiding locked counts
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OUString const & unoName = *(OUString const *)&((typelib_TypeDescription *)pTD)->pTypeName;
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{
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MutexGuard aGuard( m_mutex );
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t_classdata_map::const_iterator iFind( m_map.find( unoName ) );
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if (iFind == m_map.end())
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{
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// create new vtable
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sal_Int32 nSlots = pTD->nMapFunctionIndexToMemberIndex;
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buffer = ::rtl_allocateMemory( ((2+ nSlots) * sizeof (void *)) + (nSlots *20) );
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::std::pair< t_classdata_map::iterator, bool > insertion(
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m_map.insert( t_classdata_map::value_type( unoName, buffer ) ) );
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OSL_ENSURE( insertion.second, "### inserting new vtable buffer failed?!" );
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void ** slots = (void **)buffer;
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*slots++ = 0;
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*slots++ = 0; // rtti
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char * code = (char *)(slots + nSlots);
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sal_uInt32 vtable_pos = 0;
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sal_Int32 nAllMembers = pTD->nAllMembers;
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typelib_TypeDescriptionReference ** ppAllMembers = pTD->ppAllMembers;
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for ( sal_Int32 nPos = 0; nPos < nAllMembers; ++nPos )
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{
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typelib_TypeDescription * pTD = 0;
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TYPELIB_DANGER_GET( &pTD, ppAllMembers[ nPos ] );
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OSL_ASSERT( pTD );
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if (typelib_TypeClass_INTERFACE_ATTRIBUTE == pTD->eTypeClass)
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{
|
|
bool simple_ret = cppu_isSimpleType(
|
|
((typelib_InterfaceAttributeTypeDescription *)pTD)->pAttributeTypeRef->eTypeClass );
|
|
// get method
|
|
*slots++ = code;
|
|
codeSnippet( code, vtable_pos++, simple_ret );
|
|
code += 20;
|
|
if (! ((typelib_InterfaceAttributeTypeDescription *)pTD)->bReadOnly)
|
|
{
|
|
// set method
|
|
*slots++ = code;
|
|
codeSnippet( code, vtable_pos++, true );
|
|
code += 20;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
bool simple_ret = cppu_isSimpleType(
|
|
((typelib_InterfaceMethodTypeDescription *)pTD)->pReturnTypeRef->eTypeClass );
|
|
*slots++ = code;
|
|
codeSnippet( code, vtable_pos++, simple_ret );
|
|
code += 20;
|
|
}
|
|
TYPELIB_DANGER_RELEASE( pTD );
|
|
}
|
|
OSL_ASSERT( vtable_pos == nSlots );
|
|
}
|
|
else
|
|
{
|
|
buffer = iFind->second;
|
|
}
|
|
}
|
|
|
|
return ((void **)buffer +2);
|
|
}
|
|
|
|
//==================================================================================================
|
|
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
|
|
}
|
|
}
|
|
*(void const **)pCppI = s_pMediateClassData->get_vtable( pTypeDescr );
|
|
}
|
|
|
|
}
|
|
|
|
extern "C"
|
|
{
|
|
//##################################################################################################
|
|
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 );
|
|
}
|
|
//##################################################################################################
|
|
void SAL_CALL uno_initEnvironment( uno_Environment * pCppEnv )
|
|
SAL_THROW_EXTERN_C()
|
|
{
|
|
CPPU_CURRENT_NAMESPACE::cppu_cppenv_initEnvironment(
|
|
pCppEnv );
|
|
}
|
|
//##################################################################################################
|
|
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 );
|
|
}
|
|
}
|