1 /**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 *************************************************************/
21
22
23
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_bridges.hxx"
26
27 #include <com/sun/star/uno/genfunc.hxx>
28 #include <uno/data.h>
29 #include <typelib/typedescription.hxx>
30
31 #include "bridges/cpp_uno/shared/bridge.hxx"
32 #include "bridges/cpp_uno/shared/cppinterfaceproxy.hxx"
33 #include "bridges/cpp_uno/shared/types.hxx"
34 #include "bridges/cpp_uno/shared/vtablefactory.hxx"
35
36 #include "share.hxx"
37 #include <stdio.h>
38
39 //Calling Standards:
40 // "Calling Standard for Alpha Systems"
41 // (Tru64 UNIX Version 5.1 or higher, August 2000)
42 //http://www.tru64unix.compaq.com/docs/base_doc/DOCUMENTATION/V51_HTML/ARH9MBTE/TITLE.HTM
43
44 using namespace ::com::sun::star::uno;
45
46 namespace
47 {
cpp2uno_call(bridges::cpp_uno::shared::CppInterfaceProxy * pThis,const typelib_TypeDescription * pMemberTypeDescr,typelib_TypeDescriptionReference * pReturnTypeRef,sal_Int32 nParams,typelib_MethodParameter * pParams,void ** gpreg,void ** fpreg,void ** ovrflw,sal_Int64 * pRegisterReturn)48 static typelib_TypeClass cpp2uno_call(
49 bridges::cpp_uno::shared::CppInterfaceProxy * pThis,
50 const typelib_TypeDescription * pMemberTypeDescr,
51 typelib_TypeDescriptionReference * pReturnTypeRef, // 0 indicates void return
52 sal_Int32 nParams, typelib_MethodParameter * pParams,
53 void ** gpreg, void ** fpreg, void ** ovrflw,
54 sal_Int64 * pRegisterReturn /* space for register return */ )
55 {
56 #ifdef CMC_DEBUG
57 fprintf(stderr, "as far as cpp2uno_call\n");
58 #endif
59 int nregs = 0; //number of words passed in registers
60
61 // gpreg: [ret *], this, [gpr params]
62 // fpreg: [fpr params]
63 // ovrflw: [gpr or fpr params (properly aligned)]
64
65 // return
66 typelib_TypeDescription * pReturnTypeDescr = 0;
67 if (pReturnTypeRef)
68 TYPELIB_DANGER_GET( &pReturnTypeDescr, pReturnTypeRef );
69
70 void * pUnoReturn = 0;
71 void * pCppReturn = 0; // complex return ptr: if != 0 && != pUnoReturn, reconversion need
72
73 if (pReturnTypeDescr)
74 {
75 if (bridges::cpp_uno::shared::isSimpleType( pReturnTypeDescr ))
76 {
77 pUnoReturn = pRegisterReturn; // direct way for simple types
78 }
79 else // complex return via ptr (pCppReturn)
80 {
81 pCppReturn = *(void **)gpreg;
82 gpreg++;
83 fpreg++;
84 nregs++;
85
86 pUnoReturn = (bridges::cpp_uno::shared::relatesToInterfaceType( pReturnTypeDescr )
87 ? alloca( pReturnTypeDescr->nSize )
88 : pCppReturn); // direct way
89 }
90 }
91 // pop this
92 gpreg++;
93 fpreg++;
94 nregs++;
95
96 // stack space
97 OSL_ENSURE( sizeof(void *) == sizeof(sal_Int64), "### unexpected size!" );
98 // parameters
99 void ** pUnoArgs = (void **)alloca( 4 * sizeof(void *) * nParams );
100 void ** pCppArgs = pUnoArgs + nParams;
101 // indizes of values this have to be converted (interface conversion cpp<=>uno)
102 sal_Int32 * pTempIndizes = (sal_Int32 *)(pUnoArgs + (2 * nParams));
103 // type descriptions for reconversions
104 typelib_TypeDescription ** ppTempParamTypeDescr = (typelib_TypeDescription **)(pUnoArgs + (3 * nParams));
105
106 sal_Int32 nTempIndizes = 0;
107 for ( sal_Int32 nPos = 0; nPos < nParams; ++nPos )
108 {
109 const typelib_MethodParameter & rParam = pParams[nPos];
110 typelib_TypeDescription * pParamTypeDescr = 0;
111 TYPELIB_DANGER_GET( &pParamTypeDescr, rParam.pTypeRef );
112
113 #ifdef CMC_DEBUG
114 fprintf(stderr, "arg %d of %d\n", nPos, nParams);
115 #endif
116
117 if (!rParam.bOut && bridges::cpp_uno::shared::isSimpleType( pParamTypeDescr )) // value
118 {
119 #ifdef CMC_DEBUG
120 fprintf(stderr, "simple type is %d\n", pParamTypeDescr->eTypeClass);
121 #endif
122
123 switch (pParamTypeDescr->eTypeClass)
124 {
125 case typelib_TypeClass_FLOAT:
126 case typelib_TypeClass_DOUBLE:
127 if (nregs < axp::MAX_WORDS_IN_REGS)
128 {
129 if (pParamTypeDescr->eTypeClass == typelib_TypeClass_FLOAT)
130 {
131 float tmp = (float) (*((double *)fpreg));
132 (*((float *) fpreg)) = tmp;
133 }
134
135 pCppArgs[nPos] = pUnoArgs[nPos] = fpreg;
136 gpreg++;
137 fpreg++;
138 nregs++;
139 }
140 else
141 {
142 pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw;
143 ovrflw++;
144 }
145 break;
146 case typelib_TypeClass_BYTE:
147 case typelib_TypeClass_BOOLEAN:
148 if (nregs < axp::MAX_WORDS_IN_REGS)
149 {
150 pCppArgs[nPos] = pUnoArgs[nPos] = gpreg;
151 gpreg++;
152 fpreg++;
153 nregs++;
154 }
155 else
156 {
157 pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw;
158 ovrflw++;
159 }
160 break;
161 case typelib_TypeClass_CHAR:
162 case typelib_TypeClass_SHORT:
163 case typelib_TypeClass_UNSIGNED_SHORT:
164 if (nregs < axp::MAX_WORDS_IN_REGS)
165 {
166 pCppArgs[nPos] = pUnoArgs[nPos] = gpreg;
167 gpreg++;
168 fpreg++;
169 nregs++;
170 }
171 else
172 {
173 pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw;
174 ovrflw++;
175 }
176 break;
177 case typelib_TypeClass_ENUM:
178 case typelib_TypeClass_LONG:
179 case typelib_TypeClass_UNSIGNED_LONG:
180 if (nregs < axp::MAX_WORDS_IN_REGS)
181 {
182 pCppArgs[nPos] = pUnoArgs[nPos] = gpreg;
183 gpreg++;
184 fpreg++;
185 nregs++;
186 }
187 else
188 {
189 pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw;
190 ovrflw++;
191 }
192 break;
193 default:
194 if (nregs < axp::MAX_WORDS_IN_REGS)
195 {
196 pCppArgs[nPos] = pUnoArgs[nPos] = gpreg;
197 gpreg++;
198 fpreg++;
199 nregs++;
200 }
201 else
202 {
203 pCppArgs[nPos] = pUnoArgs[nPos] = ovrflw;
204 ovrflw++;
205 }
206 break;
207 }
208
209 // no longer needed
210 TYPELIB_DANGER_RELEASE( pParamTypeDescr );
211 }
212 else // ptr to complex value | ref
213 {
214 #ifdef CMC_DEBUG
215 fprintf(stderr, "complex, nregs is %d\n", nregs);
216 #endif
217
218 void *pCppStack; //temporary stack pointer
219
220 if (nregs < axp::MAX_WORDS_IN_REGS)
221 {
222 pCppArgs[nPos] = pCppStack = *gpreg;
223 gpreg++;
224 fpreg++;
225 nregs++;
226 }
227 else
228 {
229 pCppArgs[nPos] = pCppStack = *ovrflw;
230 ovrflw++;
231 }
232
233 if (! rParam.bIn) // is pure out
234 {
235 // uno out is unconstructed mem!
236 pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize );
237 pTempIndizes[nTempIndizes] = nPos;
238 // will be released at reconversion
239 ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
240 }
241 // is in/inout
242 else if (bridges::cpp_uno::shared::relatesToInterfaceType( pParamTypeDescr ))
243 {
244 uno_copyAndConvertData( pUnoArgs[nPos] = alloca( pParamTypeDescr->nSize ),
245 pCppStack, pParamTypeDescr,
246 pThis->getBridge()->getCpp2Uno() );
247 pTempIndizes[nTempIndizes] = nPos; // has to be reconverted
248 // will be released at reconversion
249 ppTempParamTypeDescr[nTempIndizes++] = pParamTypeDescr;
250 }
251 else // direct way
252 {
253 pUnoArgs[nPos] = pCppStack;
254 // no longer needed
255 TYPELIB_DANGER_RELEASE( pParamTypeDescr );
256 }
257 }
258 }
259
260 #ifdef CMC_DEBUG
261 fprintf(stderr, "end of params\n");
262 #endif
263
264 // ExceptionHolder
265 uno_Any aUnoExc; // Any will be constructed by callee
266 uno_Any * pUnoExc = &aUnoExc;
267
268 // invoke uno dispatch call
269 (*pThis->getUnoI()->pDispatcher)( pThis->getUnoI(), pMemberTypeDescr, pUnoReturn, pUnoArgs, &pUnoExc );
270
271 // in case an exception occurred...
272 if (pUnoExc)
273 {
274 // destruct temporary in/inout params
275 for ( ; nTempIndizes--; )
276 {
277 sal_Int32 nIndex = pTempIndizes[nTempIndizes];
278
279 if (pParams[nIndex].bIn) // is in/inout => was constructed
280 uno_destructData( pUnoArgs[nIndex], ppTempParamTypeDescr[nTempIndizes], 0 );
281 TYPELIB_DANGER_RELEASE( ppTempParamTypeDescr[nTempIndizes] );
282 }
283 if (pReturnTypeDescr)
284 TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
285
286 CPPU_CURRENT_NAMESPACE::raiseException( &aUnoExc, pThis->getBridge()->getUno2Cpp() ); // has to destruct the any
287 // is here for dummy
288 return typelib_TypeClass_VOID;
289 }
290 else // else no exception occurred...
291 {
292 // temporary params
293 for ( ; nTempIndizes--; )
294 {
295 sal_Int32 nIndex = pTempIndizes[nTempIndizes];
296 typelib_TypeDescription * pParamTypeDescr = ppTempParamTypeDescr[nTempIndizes];
297
298 if (pParams[nIndex].bOut) // inout/out
299 {
300 // convert and assign
301 uno_destructData( pCppArgs[nIndex], pParamTypeDescr, cpp_release );
302 uno_copyAndConvertData( pCppArgs[nIndex], pUnoArgs[nIndex], pParamTypeDescr,
303 pThis->getBridge()->getUno2Cpp() );
304 }
305 // destroy temp uno param
306 uno_destructData( pUnoArgs[nIndex], pParamTypeDescr, 0 );
307
308 TYPELIB_DANGER_RELEASE( pParamTypeDescr );
309 }
310 // return
311 if (pCppReturn) // has complex return
312 {
313 if (pUnoReturn != pCppReturn) // needs reconversion
314 {
315 uno_copyAndConvertData( pCppReturn, pUnoReturn, pReturnTypeDescr,
316 pThis->getBridge()->getUno2Cpp() );
317 // destroy temp uno return
318 uno_destructData( pUnoReturn, pReturnTypeDescr, 0 );
319 }
320 // complex return ptr is set to return reg
321 *(void **)pRegisterReturn = pCppReturn;
322 }
323 if (pReturnTypeDescr)
324 {
325 typelib_TypeClass eRet = (typelib_TypeClass)pReturnTypeDescr->eTypeClass;
326 TYPELIB_DANGER_RELEASE( pReturnTypeDescr );
327 return eRet;
328 }
329 else
330 return typelib_TypeClass_VOID;
331 }
332 }
333
334
335 //============================================================================
cpp_mediate(sal_uInt64 nOffsetAndIndex,void ** gpreg,void ** fpreg,void ** ovrflw,sal_Int64 * pRegisterReturn)336 static typelib_TypeClass cpp_mediate(
337 sal_uInt64 nOffsetAndIndex,
338 void ** gpreg, void ** fpreg, void ** ovrflw,
339 sal_Int64 * pRegisterReturn /* space for register return */ )
340 {
341 OSL_ENSURE( sizeof(sal_Int64)==sizeof(void *), "### unexpected!" );
342
343 sal_Int32 nVtableOffset = (nOffsetAndIndex >> 32);
344 sal_Int32 nFunctionIndex = (nOffsetAndIndex & 0xFFFFFFFF);
345
346 #ifdef CMC_DEBUG
347 fprintf(stderr, "nVTableOffset, nFunctionIndex are %x %x\n", nVtableOffset, nFunctionIndex);
348 #endif
349
350 #ifdef CMC_DEBUG
351 // Let's figure out what is really going on here
352 {
353 fprintf( stderr, "= cpp_mediate () =\nGPR's (%d): ", 6 );
354 for ( unsigned int i = 0; i < 6; ++i )
355 fprintf( stderr, "0x%lx, ", gpreg[i] );
356 fprintf( stderr, "\n");
357 fprintf( stderr, "\nFPR's (%d): ", 6 );
358 for ( unsigned int i = 0; i < 6; ++i )
359 fprintf( stderr, "0x%lx (%f), ", fpreg[i], fpreg[i] );
360 fprintf( stderr, "\n");
361 }
362 #endif
363
364
365 // gpreg: [ret *], this, [other gpr params]
366 // fpreg: [fpr params]
367 // ovrflw: [gpr or fpr params (properly aligned)]
368
369 // _this_ ptr is patched cppu_XInterfaceProxy object
370 void * pThis;
371 if( nFunctionIndex & 0x80000000 )
372 {
373 nFunctionIndex &= 0x7fffffff;
374 pThis = gpreg[1];
375 }
376 else
377 {
378 pThis = gpreg[0];
379 }
380
381 pThis = static_cast< char * >(pThis) - nVtableOffset;
382
383 bridges::cpp_uno::shared::CppInterfaceProxy * pCppI
384 = bridges::cpp_uno::shared::CppInterfaceProxy::castInterfaceToProxy(
385 pThis);
386
387 typelib_InterfaceTypeDescription * pTypeDescr = pCppI->getTypeDescr();
388
389
390 OSL_ENSURE( nFunctionIndex < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!" );
391 if (nFunctionIndex >= pTypeDescr->nMapFunctionIndexToMemberIndex)
392 {
393 throw RuntimeException(
394 rtl::OUString::createFromAscii("illegal vtable index!"),
395 (XInterface *)pCppI );
396 }
397
398 // determine called method
399 OSL_ENSURE( nVtableCall < pTypeDescr->nMapFunctionIndexToMemberIndex, "### illegal vtable index!" );
400 sal_Int32 nMemberPos = pTypeDescr->pMapFunctionIndexToMemberIndex[nFunctionIndex];
401 OSL_ENSURE( nMemberPos < pTypeDescr->nAllMembers, "### illegal member index!" );
402
403 TypeDescription aMemberDescr( pTypeDescr->ppAllMembers[nMemberPos] );
404
405 typelib_TypeClass eRet;
406 switch (aMemberDescr.get()->eTypeClass)
407 {
408 case typelib_TypeClass_INTERFACE_ATTRIBUTE:
409 {
410 if (pTypeDescr->pMapMemberIndexToFunctionIndex[nMemberPos] == nFunctionIndex)
411 {
412 // is GET method
413 eRet = cpp2uno_call(
414 pCppI, aMemberDescr.get(),
415 ((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef,
416 0, 0, // no params
417 gpreg, fpreg, ovrflw, pRegisterReturn );
418 }
419 else
420 {
421 // is SET method
422 typelib_MethodParameter aParam;
423 aParam.pTypeRef =
424 ((typelib_InterfaceAttributeTypeDescription *)aMemberDescr.get())->pAttributeTypeRef;
425 aParam.bIn = sal_True;
426 aParam.bOut = sal_False;
427
428 eRet = cpp2uno_call(
429 pCppI, aMemberDescr.get(),
430 0, // indicates void return
431 1, &aParam,
432 gpreg, fpreg, ovrflw, pRegisterReturn );
433 }
434 break;
435 }
436 case typelib_TypeClass_INTERFACE_METHOD:
437 {
438 // is METHOD
439 switch (nFunctionIndex)
440 {
441 case 1: // acquire()
442 pCppI->acquireProxy(); // non virtual call!
443 eRet = typelib_TypeClass_VOID;
444 break;
445 case 2: // release()
446 pCppI->releaseProxy(); // non virtual call!
447 eRet = typelib_TypeClass_VOID;
448 break;
449 case 0: // queryInterface() opt
450 {
451 typelib_TypeDescription * pTD = 0;
452 TYPELIB_DANGER_GET( &pTD, reinterpret_cast< Type * >( gpreg[2] )->getTypeLibType() );
453 if (pTD)
454 {
455 XInterface * pInterface = 0;
456 (*pCppI->getBridge()->getCppEnv()->getRegisteredInterface)(
457 pCppI->getBridge()->getCppEnv(),
458 (void **)&pInterface, pCppI->getOid().pData,
459 (typelib_InterfaceTypeDescription *)pTD );
460
461 if (pInterface)
462 {
463 ::uno_any_construct(
464 reinterpret_cast< uno_Any * >( gpreg[0] ),
465 &pInterface, pTD, cpp_acquire );
466 pInterface->release();
467 TYPELIB_DANGER_RELEASE( pTD );
468 *(void **)pRegisterReturn = gpreg[0];
469 eRet = typelib_TypeClass_ANY;
470 break;
471 }
472 TYPELIB_DANGER_RELEASE( pTD );
473 }
474 } // else perform queryInterface()
475 default:
476 eRet = cpp2uno_call(
477 pCppI, aMemberDescr.get(),
478 ((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pReturnTypeRef,
479 ((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->nParams,
480 ((typelib_InterfaceMethodTypeDescription *)aMemberDescr.get())->pParams,
481 gpreg, fpreg, ovrflw, pRegisterReturn );
482 }
483 break;
484 }
485 default:
486 {
487 throw RuntimeException(
488 rtl::OUString::createFromAscii("no member description found!"),
489 (XInterface *)pCppI );
490 // is here for dummy
491 eRet = typelib_TypeClass_VOID;
492 }
493 }
494
495 return eRet;
496 }
497
cpp_vtable_call(long r16,long r17,long r18,long r19,long r20,long r21,long firstonstack)498 long cpp_vtable_call(long r16, long r17, long r18, long r19, long r20, long r21, long firstonstack)
499 {
500 register long r1 asm("$1");
501 sal_uInt64 nOffsetAndIndex = r1;
502
503 long sp = (long)&firstonstack;
504
505 sal_uInt64 gpreg[axp::MAX_GPR_REGS];
506 gpreg[0] = r16;
507 gpreg[1] = r17;
508 gpreg[2] = r18;
509 gpreg[3] = r19;
510 gpreg[4] = r20;
511 gpreg[5] = r21;
512
513 double fpreg[axp::MAX_SSE_REGS];
514 register double f16 asm("$f16"); fpreg[0] = f16;
515 register double f17 asm("$f17"); fpreg[1] = f17;
516 register double f18 asm("$f18"); fpreg[2] = f18;
517 register double f19 asm("$f19"); fpreg[3] = f19;
518 register double f20 asm("$f20"); fpreg[4] = f20;
519 register double f21 asm("$f21"); fpreg[5] = f21;
520
521 volatile long nRegReturn[1];
522 #ifdef CMC_DEBUG
523 fprintf(stderr, "before mediate with %lx\n",nOffsetAndIndex);
524 fprintf(stderr, "non-doubles are %x %x %x %x %x %x\n", gpreg[0], gpreg[1], gpreg[2], gpreg[3], gpreg[4], gpreg[5]);
525 fprintf(stderr, "doubles are %f %f %f %f %f %f\n", fpreg[0], fpreg[1], fpreg[2], fpreg[3], fpreg[4], fpreg[5]);
526 #endif
527 typelib_TypeClass aType =
528 cpp_mediate( nOffsetAndIndex, (void**)gpreg, (void**)fpreg, (void**)sp,
529 (sal_Int64*)nRegReturn );
530 #ifdef CMC_DEBUG
531 fprintf(stderr, "after mediate ret is %lx %ld\n", nRegReturn[0], nRegReturn[0]);
532 #endif
533
534 switch( aType )
535 {
536 case typelib_TypeClass_BOOLEAN:
537 case typelib_TypeClass_BYTE:
538 nRegReturn[0] = (unsigned long)(*(unsigned char *)nRegReturn);
539 break;
540 case typelib_TypeClass_CHAR:
541 case typelib_TypeClass_UNSIGNED_SHORT:
542 case typelib_TypeClass_SHORT:
543 nRegReturn[0] = (unsigned long)(*(unsigned short *)nRegReturn);
544 break;
545 case typelib_TypeClass_ENUM:
546 case typelib_TypeClass_UNSIGNED_LONG:
547 case typelib_TypeClass_LONG:
548 nRegReturn[0] = (unsigned long)(*(unsigned int *)nRegReturn);
549 break;
550 case typelib_TypeClass_VOID:
551 default:
552 break;
553 case typelib_TypeClass_FLOAT:
554 {
555 double tmp = (double) (*((float *)nRegReturn));
556 (*((double *) nRegReturn)) = tmp;
557 }
558 //deliberate fall through
559 case typelib_TypeClass_DOUBLE:
560 __asm__ ( "ldt $f0,%0\n\t"
561 : : "m" (*((double*)nRegReturn)) : "$f0");
562 break;
563 }
564 return nRegReturn[0];
565 }
566
567 const int codeSnippetSize = 32;
568
codeSnippet(unsigned char * code,sal_Int32 nFunctionIndex,sal_Int32 nVtableOffset,bool simple_ret_type)569 unsigned char *codeSnippet( unsigned char * code, sal_Int32 nFunctionIndex, sal_Int32 nVtableOffset, bool simple_ret_type )
570 {
571 if (! simple_ret_type)
572 nFunctionIndex |= 0x80000000;
573
574 unsigned char * p = code;
575 *(unsigned int*)&p[0] = 0x47fb0401; /* mov $27,$1 */
576 *(unsigned int*)&p[4] = 0xa43b0010; /* ldq $1,16($27) */
577 *(unsigned int*)&p[8] = 0xa77b0018; /* ldq $27,24($27) */
578 *(unsigned int*)&p[12] = 0x6bfb0000; /* jmp $31,($27),0 */
579 *(unsigned int*)&p[16] = nFunctionIndex;
580 *(unsigned int*)&p[20] = nVtableOffset;
581 *(unsigned long*)&p[24] = (unsigned long)cpp_vtable_call;
582 return (code + codeSnippetSize);
583 }
584 }
585
flushCode(unsigned char const *,unsigned char const *)586 void bridges::cpp_uno::shared::VtableFactory::flushCode(unsigned char const *, unsigned char const *)
587 {
588 //http://www.gnu.org/software/lightning/manual/html_node/Standard-functions.html
589 __asm__ __volatile__("call_pal 0x86");
590 }
591
592 struct bridges::cpp_uno::shared::VtableFactory::Slot { void * fn; };
593
594 bridges::cpp_uno::shared::VtableFactory::Slot *
mapBlockToVtable(void * block)595 bridges::cpp_uno::shared::VtableFactory::mapBlockToVtable(void * block)
596 {
597 return static_cast< Slot * >(block) + 2;
598 }
599
getBlockSize(sal_Int32 slotCount)600 sal_Size bridges::cpp_uno::shared::VtableFactory::getBlockSize(
601 sal_Int32 slotCount)
602 {
603 return (slotCount + 2) * sizeof (Slot) + slotCount * codeSnippetSize;
604 }
605
606 bridges::cpp_uno::shared::VtableFactory::Slot *
initializeBlock(void * block,sal_Int32 slotCount)607 bridges::cpp_uno::shared::VtableFactory::initializeBlock(
608 void * block, sal_Int32 slotCount)
609 {
610 Slot * slots = mapBlockToVtable(block);
611 slots[-2].fn = 0;
612 slots[-1].fn = 0;
613 return slots + slotCount;
614 }
615
addLocalFunctions(Slot ** slots,unsigned char * code,sal_PtrDiff writetoexecdiff,typelib_InterfaceTypeDescription const * type,sal_Int32 functionOffset,sal_Int32 functionCount,sal_Int32 vtableOffset)616 unsigned char * bridges::cpp_uno::shared::VtableFactory::addLocalFunctions(
617 Slot ** slots, unsigned char * code, sal_PtrDiff writetoexecdiff,
618 typelib_InterfaceTypeDescription const * type, sal_Int32 functionOffset,
619 sal_Int32 functionCount, sal_Int32 vtableOffset)
620 {
621 (*slots) -= functionCount;
622 Slot * s = *slots;
623 #ifdef CMC_DEBUG
624 fprintf(stderr, "in addLocalFunctions functionOffset is %x\n",functionOffset);
625 fprintf(stderr, "in addLocalFunctions vtableOffset is %x\n",vtableOffset);
626 #endif
627
628 for (sal_Int32 i = 0; i < type->nMembers; ++i) {
629 typelib_TypeDescription * member = 0;
630 TYPELIB_DANGER_GET(&member, type->ppMembers[i]);
631 OSL_ASSERT(member != 0);
632 switch (member->eTypeClass) {
633 case typelib_TypeClass_INTERFACE_ATTRIBUTE:
634 // Getter:
635 (s++)->fn = code + writetoexecdiff;
636 code = codeSnippet(
637 code, functionOffset++, vtableOffset,
638 bridges::cpp_uno::shared::isSimpleType(
639 reinterpret_cast<
640 typelib_InterfaceAttributeTypeDescription * >(
641 member)->pAttributeTypeRef));
642
643 // Setter:
644 if (!reinterpret_cast<
645 typelib_InterfaceAttributeTypeDescription * >(
646 member)->bReadOnly)
647 {
648 (s++)->fn = code + writetoexecdiff;
649 code = codeSnippet(code, functionOffset++, vtableOffset, true);
650 }
651 break;
652
653 case typelib_TypeClass_INTERFACE_METHOD:
654 (s++)->fn = code + writetoexecdiff;
655 code = codeSnippet(
656 code, functionOffset++, vtableOffset,
657 bridges::cpp_uno::shared::isSimpleType(
658 reinterpret_cast<
659 typelib_InterfaceMethodTypeDescription * >(
660 member)->pReturnTypeRef));
661 break;
662
663 default:
664 OSL_ASSERT(false);
665 break;
666 }
667 TYPELIB_DANGER_RELEASE(member);
668 }
669 return code;
670 }
671
672 /* vi:set tabstop=4 shiftwidth=4 expandtab: */
673