bridges/source/cpp_uno/gcc3_linux_arm/uno2cpp.cxx

   1 /*************************************************************************
   2  *
   3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   4  *
   5  * Copyright 2008 by Sun Microsystems, Inc.
   6  *
   7  * OpenOffice.org - a multi-platform office productivity suite
   8  *
   9  * $RCSfile: uno2cpp.cxx,v $
  10  * $Revision: 1.4 $
  11  *
  12  * This file is part of OpenOffice.org.
  13  *
  14  * OpenOffice.org is free software: you can redistribute it and/or modify
  15  * it under the terms of the GNU Lesser General Public License version 3
  16  * only, as published by the Free Software Foundation.
  17  *
  18  * OpenOffice.org is distributed in the hope that it will be useful,
  19  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  20  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  21  * GNU Lesser General Public License version 3 for more details
  22  * (a copy is included in the LICENSE file that accompanied this code).
  23  *
  24  * You should have received a copy of the GNU Lesser General Public License
  25  * version 3 along with OpenOffice.org.  If not, see
  26  * <http://www.openoffice.org/license.html>
  27  * for a copy of the LGPLv3 License.
  28  *
  29  ************************************************************************/
  30
  31 #include <malloc.h>
  32 #include <rtl/alloc.h>
  33
  34 #include <com/sun/star/uno/genfunc.hxx>
  35 #include "com/sun/star/uno/RuntimeException.hpp"
  36 #include <uno/data.h>
  37
  38 #include <bridges/cpp_uno/shared/bridge.hxx>
  39 #include <bridges/cpp_uno/shared/types.hxx>
  40 #include <bridges/cpp_uno/shared/unointerfaceproxy.hxx>
  41 #include <bridges/cpp_uno/shared/vtables.hxx>
  42
  43 #include "share.hxx"
  44
  45 #include <stdio.h>
  46 #include <string.h>
  47
  48 /*
  49  * Based on http://gcc.gnu.org/PR41443
  50  * References to __SOFTFP__ are incorrect for EABI; the __SOFTFP__ code
  51  * should be used for *soft-float ABI* whether or not VFP is enabled,
  52  * and __SOFTFP__ does specifically mean soft-float not soft-float ABI.
  53  *
  54  * Changing the conditionals to __SOFTFP__ || __ARM_EABI__ then
  55  * -mfloat-abi=softfp should work.  -mfloat-abi=hard won't; that would
  56  * need both a new macro to identify the hard-VFP ABI.
  57  */
  58 #if !defined(__ARM_EABI__) && !defined(__SOFTFP__)
  59 #error Not Implemented
  60
  61 /*
  62  some possibly handy code to detect that we have VFP registers
  63  */
  64
  65 #include <sys/types.h>
  66 #include <sys/stat.h>
  67 #include <fcntl.h>
  68 #include <unistd.h>
  69 #include <elf.h>
  70
  71 #define HWCAP_ARM_VFP 64
  72
  73 int hasVFP(void)
  74 {
  75     int fd = open ("/proc/self/auxv", O_RDONLY);
  76     if (fd == -1)
  77         return -1;
  78
  79     int ret = -1;
  80
  81     Elf32_auxv_t buf[128];
  82     ssize_t n;
  83     while ((ret == -1) && ((n = read(fd, buf, sizeof (buf))) > 0))
  84     {
  85         for (int i = 0; i < 128; ++i)
  86         {
  87         if (buf[i].a_type == AT_HWCAP)
  88         {
  89                 ret = (buf[i].a_un.a_val & HWCAP_ARM_VFP) ? true : false;
  90                 break;
  91         }
  92             else if (buf[i].a_type == AT_NULL)
  93             {
  94                 ret = -2;
  95                 break;
  96             }
  97         }
  98     }
  99
 100     close (fd);
 101     return ret;
 102 }
 103
 104 #endif
 105
 106 using namespace ::rtl;
 107 using namespace ::com::sun::star::uno;
 108
 109 namespace arm
 110 {
 111     enum armlimits { MAX_GPR_REGS = 4 };
 112 }
 113
 114 void MapReturn(long r0, long r1, typelib_TypeClass eReturnType, void *pRegisterReturn)
 115 {
 116 #if !defined(__ARM_EABI__) && !defined(__SOFTFP__)
 117     register float fret asm("f0");
 118     register double dret asm("f0");
 119 #endif
 120
 121     switch( eReturnType )
 122     {
 123         case typelib_TypeClass_HYPER:
 124         case typelib_TypeClass_UNSIGNED_HYPER:
 125             ((long*)pRegisterReturn)[1] = r1;
 126         case typelib_TypeClass_LONG:
 127         case typelib_TypeClass_UNSIGNED_LONG:
 128         case typelib_TypeClass_ENUM:
 129             ((long*)pRegisterReturn)[0] = r0;
 130             break;
 131         case typelib_TypeClass_CHAR:
 132         case typelib_TypeClass_SHORT:
 133         case typelib_TypeClass_UNSIGNED_SHORT:
 134             *(unsigned short*)pRegisterReturn = (unsigned short)r0;
 135             break;
 136         case typelib_TypeClass_BOOLEAN:
 137         case typelib_TypeClass_BYTE:
 138             *(unsigned char*)pRegisterReturn = (unsigned char)r0;
 139             break;
 140         case typelib_TypeClass_FLOAT:
 141 #if defined(__ARM_EABI__) || defined(__SOFTFP__)
 142             ((long*)pRegisterReturn)[0] = r0;
 143 #else
 144             *(float*)pRegisterReturn = fret;
 145 #endif
 146         break;
 147         case typelib_TypeClass_DOUBLE:
 148 #if defined(__ARM_EABI__) || defined(__SOFTFP__)
 149             ((long*)pRegisterReturn)[1] = r1;
 150             ((long*)pRegisterReturn)[0] = r0;
 151 #else
 152             *(double*)pRegisterReturn = dret;
 153 #endif
 154             break;
 155         default:
 156             break;
 157     }
 158 }
 159
 160 namespace
 161 {
 162 //================================================================
 163
 164 void callVirtualMethod(
 165     void * pThis,
 166     sal_Int32 nVtableIndex,
 167     void * pRegisterReturn,
 168     typelib_TypeClass eReturnType,
 169     sal_uInt32 *pStack,
 170     sal_uInt32 nStack,
 171     sal_uInt32 *pGPR,
 172     sal_uInt32 nGPR) __attribute__((noinline));
 173
 174 void callVirtualMethod(
 175     void * pThis,
 176     sal_Int32 nVtableIndex,
 177     void * pRegisterReturn,
 178     typelib_TypeClass eReturnType,
 179     sal_uInt32 *pStack,
 180     sal_uInt32 nStack,
 181     sal_uInt32 *pGPR,
 182     sal_uInt32 nGPR)
 183 {
 184     // never called
 185     if (! pThis)
 186         CPPU_CURRENT_NAMESPACE::dummy_can_throw_anything("xxx"); // address something
 187
 188     if ( nStack )
 189     {
 190         // 8-bytes aligned
 191         sal_uInt32 nStackBytes = ( ( nStack + 1 ) >> 1 ) * 8;
 192         sal_uInt32 *stack = (sal_uInt32 *) __builtin_alloca( nStackBytes );
 193         memcpy( stack, pStack, nStackBytes );
 194     }
 195
 196     // Should not happen, but...
 197     if ( nGPR > arm::MAX_GPR_REGS )
 198         nGPR = arm::MAX_GPR_REGS;
 199
 200     sal_uInt32 pMethod = *((sal_uInt32*)pThis);
 201     pMethod += 4 * nVtableIndex;
 202     pMethod = *((sal_uInt32 *)pMethod);
 203
 204     typedef void (*FunctionCall )( sal_uInt32, sal_uInt32, sal_uInt32, sal_uInt32);
 205     FunctionCall pFunc = (FunctionCall)pMethod;
 206
 207     // fill registers
 208     __asm__ __volatile__ (
 209         "ldr r0, [%0, #0]\n\t"
 210         "ldr r1, [%0, #4]\n\t"
 211         "ldr r2, [%0, #8]\n\t"
 212         "ldr r3, [%0, #12]\n\t"
 213         : : "r" (pGPR)
 214         : "r0", "r1", "r2", "r3"
 215     );
 216
 217     // tell gcc that r0 to r3 are not available to it
 218     register sal_uInt32 r0 asm("r0");
 219     register sal_uInt32 r1 asm("r1");
 220     register sal_uInt32 r2 asm("r2");
 221     register sal_uInt32 r3 asm("r3");
 222
 223     (*pFunc)(r0, r1, r2, r3);
 224
 225     // get return value
 226     __asm__ __volatile__ (
 227         "mov %0, r0\n\t"
 228         "mov %1, r1\n\t"
 229         : "=r" (r0), "=r" (r1) : );
 230
 231     MapReturn(r0, r1, eReturnType, pRegisterReturn);
 232 }
 233 }
 234
 235 #define INSERT_INT32( pSV, nr, pGPR, pDS, bOverflow ) \
 236         if ( nr < arm::MAX_GPR_REGS ) \
 237                 pGPR[nr++] = *reinterpret_cast<sal_uInt32 *>( pSV ); \
 238         else \
 239                 bOverFlow = true; \
 240         if (bOverFlow) \
 241                 *pDS++ = *reinterpret_cast<sal_uInt32 *>( pSV );
 242
 243 #ifdef __ARM_EABI__
 244 #define INSERT_INT64( pSV, nr, pGPR, pDS, pStart, bOverflow ) \
 245         if ( (nr < arm::MAX_GPR_REGS) && (nr % 2) ) \
 246         { \
 247                 ++nr; \
 248         } \
 249         if ( nr < arm::MAX_GPR_REGS ) \
 250         { \
 251                 pGPR[nr++] = *reinterpret_cast<sal_uInt32 *>( pSV ); \
 252                 pGPR[nr++] = *(reinterpret_cast<sal_uInt32 *>( pSV ) + 1); \
 253         } \
 254         else \
 255                 bOverFlow = true; \
 256         if (bOverFlow) \
 257     { \
 258         if ( (pDS - pStart) % 2) \
 259                 { \
 260                     ++pDS; \
 261                 } \
 262                 *pDS++ = reinterpret_cast<sal_uInt32 *>( pSV )[0]; \
 263                 *pDS++ = reinterpret_cast<sal_uInt32 *>( pSV )[1]; \
 264     }
 265 #else
 266 #define INSERT_INT64( pSV, nr, pGPR, pDS, pStart, bOverflow ) \
 267         INSERT_INT32( pSV, nr, pGPR, pDS, bOverflow) \
 268         INSERT_INT32( ((sal_uInt32*)pSV)+1, nr, pGPR, pDS, bOverflow)
 269 #endif
 270
 271 #define INSERT_FLOAT( pSV, nr, pFPR, pDS, bOverflow ) \
 272         INSERT_INT32( pSV, nr, pGPR, pDS, bOverflow)
 273
 274 #define INSERT_DOUBLE( pSV, nr, pFPR, pDS, pStart, bOverflow ) \
 275         INSERT_INT64( pSV, nr, pGPR, pDS, pStart, bOverflow )
 276
 277 #define INSERT_INT16( pSV, nr, pGPR, pDS, bOverflow ) \
 278         if ( nr < arm::MAX_GPR_REGS ) \
 279                 pGPR[nr++] = *reinterpret_cast<sal_uInt16 *>( pSV ); \
 280         else \
 281                 bOverFlow = true; \
 282         if (bOverFlow) \
 283                 *pDS++ = *reinterpret_cast<sal_uInt16 *>( pSV );
 284
 285 #define INSERT_INT8( pSV, nr, pGPR, pDS, bOverflow ) \
 286         if ( nr < arm::MAX_GPR_REGS ) \
 287                 pGPR[nr++] = *reinterpret_cast<sal_uInt8 *>( pSV ); \
 288         else \
 289                 bOverFlow = true; \
 290         if (bOverFlow) \
 291                 *pDS++ = *reinterpret_cast<sal_uInt8 *>( pSV );
 292
 293 namespace {
 294 //=======================================================================
 295 static void cpp_call(
 296     bridges::cpp_uno::shared::UnoInterfaceProxy * pThis,
 297     bridges::cpp_uno::shared::VtableSlot aVtableSlot,
 298     typelib_TypeDescriptionReference * pReturnTypeRef,
 299     sal_Int32 nParams, typelib_MethodParameter * pParams,
 300     void * pUnoReturn, void * pUnoArgs[], uno_Any ** ppUnoExc )
 301 {
 302     // max space for: [complex ret ptr], values|ptr ...
 303     sal_uInt32 * pStack = (sal_uInt32 *)__builtin_alloca(
 304         sizeof(sal_Int32) + ((nParams+2) * sizeof(sal_Int64)) );
 305     sal_uInt32 * pStackStart = pStack;
 306
 307     sal_uInt32 pGPR[arm::MAX_GPR_REGS];
 308     sal_uInt32 nGPR = 0;
 309
 310     // return
 311     typelib_TypeDescription * pReturnTypeDescr = 0;
 312     TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef );
 313     OSL_ENSURE( pReturnTypeDescr, "### expected return type description!" );
 314
 315     void * pCppReturn = 0; // if != 0 && != pUnoReturn, needs reconversion
 316
 317     bool bOverFlow = false;
 318
 319     if (pReturnTypeDescr)
 320     {
 321
 322         if (bridges::cpp_uno::shared::isSimpleType( pReturnTypeDescr ))
 323         {
 324             pCppReturn = pUnoReturn; // direct way for simple types
 325         }
 326         else
 327         {
 328             // complex return via ptr
 329             pCppReturn = (bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr )
 330                     ? __builtin_alloca( pReturnTypeDescr->nSize )
 331                     : pUnoReturn); // direct way
 332
 333             INSERT_INT32( &pCppReturn, nGPR, pGPR, pStack, bOverFlow );
 334         }
 335     }
 336     // push this
 337     void * pAdjustedThisPtr = reinterpret_cast< void ** >(pThis->getCppI())
 338         + aVtableSlot.offset;
 339     INSERT_INT32( &pAdjustedThisPtr, nGPR, pGPR, pStack, bOverFlow );
 340
 341     // stack space
 342     OSL_ENSURE( sizeof(void *) == sizeof(sal_Int32), "### unexpected size!" );
 343     // args
 344     void ** pCppArgs  = (void **)alloca( 3 * sizeof(void *) * nParams );
 345     // indizes of values this have to be converted (interface conversion cpp<=>uno)
 346     sal_Int32 * pTempIndizes = (sal_Int32 *)(pCppArgs + nParams);
 347     // type descriptions for reconversions
 348     typelib_TypeDescription ** ppTempParamTypeDescr = (typelib_TypeDescription **)(pCppArgs + (2 * nParams));
 349
 350     sal_Int32 nTempIndizes   = 0;
 351
 352     for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos )
 353     {
 354         const typelib_MethodParameter & rParam = pParams[nPos];
 355         typelib_TypeDescription * pParamTypeDescr = 0;
 356         TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef );
 357
 358         if (!rParam.bOut && bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr ))
 359         {
 360 //            uno_copyAndConvertData( pCppArgs[nPos] = pStack, pUnoArgs[nPos],
 361             uno_copyAndConvertData( pCppArgs[nPos] = alloca(8), pUnoArgs[nPos],
 362                 pParamTypeDescr, pThis->getBridge()->getUno2Cpp() );
 363
 364             switch (pParamTypeDescr->eTypeClass)
 365             {
 366             case typelib_TypeClass_HYPER:
 367             case typelib_TypeClass_UNSIGNED_HYPER:
 368 #ifdef CMC_DEBUG
 369                 fprintf(stderr, "hyper is %lx\n", pCppArgs[nPos]);
 370 #endif
 371                 INSERT_INT64( pCppArgs[nPos], nGPR, pGPR, pStack, pStackStart, bOverFlow );
 372                 break;
 373             case typelib_TypeClass_LONG:
 374             case typelib_TypeClass_UNSIGNED_LONG:
 375             case typelib_TypeClass_ENUM:
 376 #ifdef CMC_DEBUG
 377                 fprintf(stderr, "long is %x\n", pCppArgs[nPos]);
 378 #endif
 379                 INSERT_INT32( pCppArgs[nPos], nGPR, pGPR, pStack, bOverFlow );
 380                 break;
 381             case typelib_TypeClass_SHORT:
 382             case typelib_TypeClass_CHAR:
 383             case typelib_TypeClass_UNSIGNED_SHORT:
 384                 INSERT_INT16( pCppArgs[nPos], nGPR, pGPR, pStack, bOverFlow );
 385                 break;
 386             case typelib_TypeClass_BOOLEAN:
 387             case typelib_TypeClass_BYTE:
 388                 INSERT_INT8( pCppArgs[nPos], nGPR, pGPR, pStack, bOverFlow );
 389                 break;
 390             case typelib_TypeClass_FLOAT:
 391                 INSERT_FLOAT( pCppArgs[nPos], nGPR, pGPR, pStack, bOverFlow );
 392                 break;
 393             case typelib_TypeClass_DOUBLE:
 394                 INSERT_DOUBLE( pCppArgs[nPos], nGPR, pGPR, pStack, pStackStart, bOverFlow );
 395                 break;
 396             }
 397             // no longer needed
 398             TYPELIB_DANGER_RELEASE( pParamTypeDescr );
 399         }
 400         else // ptr to complex value | ref
 401         {
 402             if (! rParam.bIn) // is pure out
 403             {
 404                 // cpp out is constructed mem, uno out is not!
 405                 uno_constructData(
 406                     pCppArgs[nPos] = alloca( pParamTypeDescr->nSize ),
 407                     pParamTypeDescr );
 408                 pTempIndizes[nTempIndizes] = nPos; // default constructed for cpp call
 409                 // will be released at reconversion
 410                 ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
 411             }
 412             // is in/inout
 413             else if (bridges::cpp_uno::shared::relatesToInterfaceType( pParamTypeDescr ))
 414             {
 415                 uno_copyAndConvertData(
 416                     pCppArgs[nPos] = alloca( pParamTypeDescr->nSize ),
 417                     pUnoArgs[nPos], pParamTypeDescr, pThis->getBridge()->getUno2Cpp() );
 418
 419                 pTempIndizes[nTempIndizes] = nPos; // has to be reconverted
 420                 // will be released at reconversion
 421                 ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
 422             }
 423             else // direct way
 424             {
 425                 pCppArgs[nPos] = pUnoArgs[nPos];
 426                 // no longer needed
 427                 TYPELIB_DANGER_RELEASE( pParamTypeDescr );
 428             }
 429             INSERT_INT32( &(pCppArgs[nPos]), nGPR, pGPR, pStack, bOverFlow );
 430         }
 431     }
 432
 433     try
 434     {
 435         callVirtualMethod(
 436             pAdjustedThisPtr, aVtableSlot.index,
 437             pCppReturn, pReturnTypeDescr->eTypeClass,
 438             pStackStart,
 439             (pStack - pStackStart),
 440             pGPR, nGPR);
 441
 442         // NO exception occured...
 443         *ppUnoExc = 0;
 444
 445         // reconvert temporary params
 446         for ( ; nTempIndizes--; )
 447         {
 448             sal_Int32 nIndex = pTempIndizes[nTempIndizes];
 449             typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndizes];
 450
 451             if (pParams[nIndex].bIn)
 452             {
 453                 if (pParams[nIndex].bOut) // inout
 454                 {
 455                     uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, 0 ); // destroy uno value
 456                     uno_copyAndConvertData( pUnoArgs[nIndex], pCppArgs[nIndex], pParamTypeDescr,
 457                                             pThis->getBridge()->getCpp2Uno() );
 458                 }
 459             }
 460             else // pure out
 461             {
 462                 uno_copyAndConvertData( pUnoArgs[nIndex], pCppArgs[nIndex], pParamTypeDescr,
 463                                         pThis->getBridge()->getCpp2Uno() );
 464             }
 465             // destroy temp cpp param => cpp: every param was constructed
 466             uno_destructData( pCppArgs[nIndex], pParamTypeDescr, cpp_release );
 467
 468             TYPELIB_DANGER_RELEASE( pParamTypeDescr );
 469         }
 470         // return value
 471         if (pCppReturn && pUnoReturn != pCppReturn)
 472         {
 473             uno_copyAndConvertData( pUnoReturn, pCppReturn, pReturnTypeDescr,
 474                                     pThis->getBridge()->getCpp2Uno() );
 475             uno_destructData( pCppReturn, pReturnTypeDescr, cpp_release );
 476         }
 477     }
 478     catch (...)
 479     {
 480 //        __asm__ __volatile__ ("sub sp, sp, #2048\n");
 481
 482         // fill uno exception
 483         fillUnoException( CPPU_CURRENT_NAMESPACE::__cxa_get_globals()->caughtExceptions, *ppUnoExc, pThis->getBridge()->getCpp2Uno() );
 484
 485         // temporary params
 486         for ( ; nTempIndizes--; )
 487         {
 488             sal_Int32 nIndex = pTempIndizes[nTempIndizes];
 489             // destroy temp cpp param => cpp: every param was constructed
 490             uno_destructData( pCppArgs[nIndex], ppTempParamTypeDescr[nTempIndizes], cpp_release );
 491             TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndizes] );
 492         }
 493
 494         // return type
 495         if (pReturnTypeDescr)
 496             TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
 497     }
 498 }
 499 }
 500
 501 namespace bridges { namespace cpp_uno { namespace shared {
 502
 503 void unoInterfaceProxyDispatch(
 504     uno_Interface * pUnoI, const typelib_TypeDescription * pMemberDescr,
 505     void * pReturn, void * pArgs[], uno_Any ** ppException )
 506 {
 507     // is my surrogate
 508     bridges::cpp_uno::shared::UnoInterfaceProxy * pThis
 509           = static_cast< bridges::cpp_uno::shared::UnoInterfaceProxy * >(pUnoI);
 510     typelib_InterfaceTypeDescription * pTypeDescr = pThis->pTypeDescr;
 511
 512     switch (pMemberDescr->eTypeClass)
 513     {
 514     case typelib_TypeClass_INTERFACE_ATTRIBUTE:
 515     {
 516         // determine vtable call index
 517         sal_Int32 nMemberPos = ((typelib_InterfaceMemberTypeDescription *)pMemberDescr)->nPosition;
 518         OSL_ENSURE( nMemberPos < pTypeDescr->nAllMembers, "### member pos out of range!" );
 519
 520         VtableSlot aVtableSlot(
 521             getVtableSlot(
 522             reinterpret_cast<typelib_InterfaceAttributeTypeDescription const *>
 523               (pMemberDescr)));
 524
 525         if (pReturn)
 526         {
 527             // dependent dispatch
 528             cpp_call(
 529                 pThis, aVtableSlot,
 530                 ((typelib_InterfaceAttributeTypeDescription *)pMemberDescr)->pAttributeTypeRef,
 531                 0, 0, // no params
 532                 pReturn, pArgs, ppException );
 533         }
 534         else
 535         {
 536             // is SET
 537             typelib_MethodParameter aParam;
 538             aParam.pTypeRef =
 539                 ((typelib_InterfaceAttributeTypeDescription *)pMemberDescr)->pAttributeTypeRef;
 540             aParam.bIn      = sal_True;
 541             aParam.bOut     = sal_False;
 542
 543             typelib_TypeDescriptionReference * pReturnTypeRef = 0;
 544             OUString aVoidName( RTL_CONSTASCII_USTRINGPARAM("void") );
 545             typelib_typedescriptionreference_new(
 546                 &pReturnTypeRef, typelib_TypeClass_VOID, aVoidName.pData );
 547
 548             // dependent dispatch
 549             aVtableSlot.index += 1;
 550             cpp_call(
 551                 pThis, aVtableSlot, // get, then set method
 552                 pReturnTypeRef,
 553                 1, &aParam,
 554                 pReturn, pArgs, ppException );
 555
 556             typelib_typedescriptionreference_release( pReturnTypeRef );
 557         }
 558
 559         break;
 560     }
 561     case typelib_TypeClass_INTERFACE_METHOD:
 562     {
 563         // determine vtable call index
 564         sal_Int32 nMemberPos = ((typelib_InterfaceMemberTypeDescription *)pMemberDescr)->nPosition;
 565         OSL_ENSURE( nMemberPos < pTypeDescr->nAllMembers, "### member pos out of range!" );
 566
 567         VtableSlot aVtableSlot(
 568             getVtableSlot(
 569             reinterpret_cast<typelib_InterfaceMethodTypeDescription const *>
 570               (pMemberDescr)));
 571
 572         switch (aVtableSlot.index)
 573         {
 574             // standard calls
 575         case 1: // acquire uno interface
 576             (*pUnoI->acquire)( pUnoI );
 577             *ppException = 0;
 578             break;
 579         case 2: // release uno interface
 580             (*pUnoI->release)( pUnoI );
 581             *ppException = 0;
 582             break;
 583         case 0: // queryInterface() opt
 584         {
 585             typelib_TypeDescription * pTD = 0;
 586             TYPELIB_DANGER_GET( &pTD, reinterpret_cast< Type * >( pArgs[0] )->getTypeLibType() );
 587             if (pTD)
 588             {
 589                 uno_Interface * pInterface = 0;
 590                 (*pThis->getBridge()->getUnoEnv()->getRegisteredInterface)(
 591                     pThis->getBridge()->getUnoEnv(),
 592                     (void **)&pInterface, pThis->oid.pData, (typelib_InterfaceTypeDescription *)pTD );
 593
 594                 if (pInterface)
 595                 {
 596                     ::uno_any_construct(
 597                         reinterpret_cast< uno_Any * >( pReturn ),
 598                         &pInterface, pTD, 0 );
 599                     (*pInterface->release)( pInterface );
 600                     TYPELIB_DANGER_RELEASE( pTD );
 601                     *ppException = 0;
 602                     break;
 603                 }
 604                 TYPELIB_DANGER_RELEASE( pTD );
 605             }
 606         } // else perform queryInterface()
 607         default:
 608             // dependent dispatch
 609             cpp_call(
 610                 pThis, aVtableSlot,
 611                 ((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->pReturnTypeRef,
 612                 ((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->nParams,
 613                 ((typelib_InterfaceMethodTypeDescription *)pMemberDescr)->pParams,
 614                 pReturn, pArgs, ppException );
 615         }
 616         break;
 617     }
 618     default:
 619     {
 620         ::com::sun::star::uno::RuntimeException aExc(
 621             OUString( RTL_CONSTASCII_USTRINGPARAM("illegal member type description!") ),
 622             ::com::sun::star::uno::Reference< ::com::sun::star::uno::XInterface >() );
 623
 624         Type const & rExcType = ::getCppuType( &aExc );
 625         // binary identical null reference
 626         ::uno_type_any_construct( *ppException, &aExc, rExcType.getTypeLibType(), 0 );
 627     }
 628     }
 629 }
 630
 631 } } }
 632
 633 /* vi:set tabstop=4 shiftwidth=4 expandtab: */