451 lines
17 KiB
C++
451 lines
17 KiB
C++
/*************************************************************************
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*
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* $RCSfile: uno2cpp.cxx,v $
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*
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* $Revision: 1.4 $
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*
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* last change: $Author: obo $ $Date: 2003-04-01 10:40:19 $
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*
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* The Contents of this file are made available subject to the terms of
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* either of the following licenses
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*
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* - GNU Lesser General Public License Version 2.1
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* - Sun Industry Standards Source License Version 1.1
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*
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* Sun Microsystems Inc., October, 2000
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*
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* GNU Lesser General Public License Version 2.1
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* =============================================
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* Copyright 2000 by Sun Microsystems, Inc.
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* 901 San Antonio Road, Palo Alto, CA 94303, USA
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License version 2.1, as published by the Free Software Foundation.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*
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*
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* Sun Industry Standards Source License Version 1.1
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* =================================================
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* The contents of this file are subject to the Sun Industry Standards
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* Source License Version 1.1 (the "License"); You may not use this file
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* except in compliance with the License. You may obtain a copy of the
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* License at http://www.openoffice.org/license.html.
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*
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* Software provided under this License is provided on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
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* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
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* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
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* See the License for the specific provisions governing your rights and
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* obligations concerning the Software.
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*
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* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
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*
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* Copyright: 2000 by Sun Microsystems, Inc.
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*
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* All Rights Reserved.
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*
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* Contributor(s): _______________________________________
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*
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*
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************************************************************************/
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#include <malloc.h>
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#include <rtl/alloc.h>
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#include <uno/data.h>
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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 ::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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void dummy_can_throw_anything( char const * );
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//==================================================================================================
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static void callVirtualMethod(
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void * pThis,
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sal_Int32 nVtableIndex,
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void * pRegisterReturn,
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typelib_TypeClass eReturnType,
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sal_Int32 * pStackLongs,
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sal_Int32 nStackLongs )
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{
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// parameter list is mixed list of * and values
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// reference parameters are pointers
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OSL_ENSURE( pStackLongs && pThis, "### null ptr!" );
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OSL_ENSURE( (sizeof(void *) == 4) && (sizeof(sal_Int32) == 4), "### unexpected size of int!" );
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OSL_ENSURE( nStackLongs && pStackLongs, "### no stack in callVirtualMethod !" );
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// never called
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if (! pThis) dummy_can_throw_anything("xxx"); // address something
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volatile long edx = 0, eax = 0; // for register returns
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void * stackptr;
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asm volatile (
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"mov %%esp, %6\n\t"
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// copy values
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"mov %0, %%eax\n\t"
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"mov %%eax, %%edx\n\t"
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"dec %%edx\n\t"
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"shl $2, %%edx\n\t"
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"add %1, %%edx\n"
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"Lcopy:\n\t"
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"pushl 0(%%edx)\n\t"
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"sub $4, %%edx\n\t"
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"dec %%eax\n\t"
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"jne Lcopy\n\t"
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// do the actual call
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"mov %2, %%edx\n\t"
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"mov 0(%%edx), %%edx\n\t"
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"mov %3, %%eax\n\t"
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"shl $2, %%eax\n\t"
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"add %%eax, %%edx\n\t"
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"mov 0(%%edx), %%edx\n\t"
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"call *%%edx\n\t"
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// save return registers
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"mov %%eax, %4\n\t"
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"mov %%edx, %5\n\t"
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// cleanup stack
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"mov %6, %%esp\n\t"
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:
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: "m"(nStackLongs), "m"(pStackLongs), "m"(pThis), "m"(nVtableIndex),
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"m"(eax), "m"(edx), "m"(stackptr)
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: "eax", "edx" );
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switch( eReturnType )
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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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((long*)pRegisterReturn)[1] = edx;
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case typelib_TypeClass_LONG:
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case typelib_TypeClass_UNSIGNED_LONG:
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case typelib_TypeClass_CHAR:
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case typelib_TypeClass_ENUM:
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((long*)pRegisterReturn)[0] = eax;
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break;
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case typelib_TypeClass_SHORT:
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case typelib_TypeClass_UNSIGNED_SHORT:
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*(unsigned short*)pRegisterReturn = eax;
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break;
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case typelib_TypeClass_BOOLEAN:
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case typelib_TypeClass_BYTE:
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*(unsigned char*)pRegisterReturn = eax;
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break;
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case typelib_TypeClass_FLOAT:
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asm ( "fstps %0" : : "m"(*(char *)pRegisterReturn) );
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break;
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case typelib_TypeClass_DOUBLE:
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asm ( "fstpl %0\n\t" : : "m"(*(char *)pRegisterReturn) );
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break;
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}
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}
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//==================================================================================================
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static void cpp_call(
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cppu_unoInterfaceProxy * pThis,
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sal_Int32 nVtableCall,
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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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OSL_ENSURE( pReturnTypeDescr, "### expected return type description!" );
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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 (cppu_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 = (cppu_relatesToInterface( 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**)pCppStack = pThis->pCppI;
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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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// args
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void ** pCppArgs = (void **)alloca( 3 * sizeof(void *) * 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 *)(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 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 ))
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{
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uno_copyAndConvertData( pCppArgs[nPos] = pCppStack, pUnoArgs[nPos], pParamTypeDescr,
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&pThis->pBridge->aUno2Cpp );
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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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pTempIndizes[nTempIndizes] = nPos; // default constructed for cpp call
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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(
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*(void **)pCppStack = pCppArgs[nPos] = alloca( pParamTypeDescr->nSize ),
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pUnoArgs[nPos], pParamTypeDescr, &pThis->pBridge->aUno2Cpp );
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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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*(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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OSL_ENSURE( !( (pCppStack - pCppStackStart ) & 3), "UNALIGNED STACK !!! (Please DO panic)" );
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callVirtualMethod(
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pThis->pCppI, nVtableCall,
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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 occured...
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*ppUnoExc = 0;
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// reconvert 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].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->pBridge->aCpp2Uno );
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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->pBridge->aCpp2Uno );
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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->pBridge->aCpp2Uno );
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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( __cxa_get_globals()->caughtExceptions, *ppUnoExc, &pThis->pBridge->aCpp2Uno );
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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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// destroy temp cpp param => cpp: every param was constructed
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uno_destructData( pCppArgs[nIndex], ppTempParamTypeDescr[nTempIndizes], cpp_release );
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TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndizes] );
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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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void SAL_CALL cppu_unoInterfaceProxy_dispatch(
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uno_Interface * pUnoI, const typelib_TypeDescription * pMemberDescr,
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void * pReturn, void * pArgs[], uno_Any ** ppException ) throw ()
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{
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// is my surrogate
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cppu_unoInterfaceProxy * pThis = (cppu_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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// determine vtable call index
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sal_Int32 nMemberPos = ((typelib_InterfaceMemberTypeDescription *)pMemberDescr)->nPosition;
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OSL_ENSURE( nMemberPos < pTypeDescr->nAllMembers, "### member pos out of range!" );
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sal_Int32 nVtableCall = pTypeDescr->pMapMemberIndexToFunctionIndex[nMemberPos];
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OSL_ENSURE( nVtableCall < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!" );
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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, nVtableCall,
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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( RTL_CONSTASCII_USTRINGPARAM("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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cpp_call(
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pThis, nVtableCall +1, // get, then set method
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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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// determine vtable call index
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sal_Int32 nMemberPos = ((typelib_InterfaceMemberTypeDescription *)pMemberDescr)->nPosition;
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OSL_ENSURE( nMemberPos < pTypeDescr->nAllMembers, "### member pos out of range!" );
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sal_Int32 nVtableCall = pTypeDescr->pMapMemberIndexToFunctionIndex[nMemberPos];
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OSL_ENSURE( nVtableCall < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!" );
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switch (nVtableCall)
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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->pUnoEnv->getRegisteredInterface)(
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pThis->pBridge->pUnoEnv,
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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, nVtableCall,
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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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OUString( RTL_CONSTASCII_USTRINGPARAM("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 = ::getCppuType( &aExc );
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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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