tools/widl/proxy.c

   1 /*
   2  * IDL Compiler
   3  *
   4  * Copyright 2002 Ove Kaaven
   5  * Copyright 2004 Mike McCormack
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #ifdef HAVE_UNISTD_H
  28 # include <unistd.h>
  29 #endif
  30 #include <string.h>
  31 #include <ctype.h>
  32
  33 #include "widl.h"
  34 #include "utils.h"
  35 #include "parser.h"
  36 #include "header.h"
  37 #include "typegen.h"
  38 #include "expr.h"
  39
  40 #define END_OF_LIST(list)       \
  41   do {                          \
  42     if (list) {                 \
  43       while (NEXT_LINK(list))   \
  44         list = NEXT_LINK(list); \
  45     }                           \
  46   } while(0)
  47
  48 static FILE* proxy;
  49 static int indent = 0;
  50
  51 static void print_proxy( const char *format, ... ) __attribute__((format (printf, 1, 2)));
  52 static void print_proxy( const char *format, ... )
  53 {
  54   va_list va;
  55   va_start( va, format );
  56   print( proxy, indent, format, va );
  57   va_end( va );
  58 }
  59
  60 static void write_stubdescproto(void)
  61 {
  62   print_proxy( "static const MIDL_STUB_DESC Object_StubDesc;\n");
  63   print_proxy( "\n");
  64 }
  65
  66 static void write_stubdesc(int expr_eval_routines)
  67 {
  68   print_proxy( "static const MIDL_STUB_DESC Object_StubDesc =\n{\n");
  69   indent++;
  70   print_proxy( "0,\n");
  71   print_proxy( "NdrOleAllocate,\n");
  72   print_proxy( "NdrOleFree,\n");
  73   print_proxy( "{0}, 0, 0, %s, 0,\n", expr_eval_routines ? "ExprEvalRoutines" : "0");
  74   print_proxy( "__MIDL_TypeFormatString.Format,\n");
  75   print_proxy( "1, /* -error bounds_check flag */\n");
  76   print_proxy( "0x%x, /* Ndr library version */\n", get_stub_mode() == MODE_Oif ? 0x50002 : 0x10001);
  77   print_proxy( "0,\n");
  78   print_proxy( "0x50100a4, /* MIDL Version 5.1.164 */\n");
  79   print_proxy( "0,\n");
  80   print_proxy("%s,\n", list_empty(&user_type_list) ? "0" : "UserMarshalRoutines");
  81   print_proxy( "0,  /* notify & notify_flag routine table */\n");
  82   print_proxy( "1,  /* Flags */\n");
  83   print_proxy( "0,  /* Reserved3 */\n");
  84   print_proxy( "0,  /* Reserved4 */\n");
  85   print_proxy( "0   /* Reserved5 */\n");
  86   indent--;
  87   print_proxy( "};\n");
  88   print_proxy( "\n");
  89 }
  90
  91 static void init_proxy(const statement_list_t *stmts)
  92 {
  93   if (proxy) return;
  94   if(!(proxy = fopen(proxy_name, "w")))
  95     error("Could not open %s for output\n", proxy_name);
  96   print_proxy( "/*** Autogenerated by WIDL %s from %s - Do not edit ***/\n", PACKAGE_VERSION, input_name);
  97   print_proxy( "\n");
  98   print_proxy( "#define __midl_proxy\n");
  99   print_proxy( "#include \"objbase.h\"\n");
 100   print_proxy( "\n");
 101   print_proxy( "#ifndef DECLSPEC_HIDDEN\n");
 102   print_proxy( "#define DECLSPEC_HIDDEN\n");
 103   print_proxy( "#endif\n");
 104   print_proxy( "\n");
 105 }
 106
 107 static void clear_output_vars( const var_list_t *args )
 108 {
 109   const var_t *arg;
 110
 111   if (!args) return;
 112   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 113   {
 114       if (is_attr(arg->attrs, ATTR_IN)) continue;
 115       if (!is_attr(arg->attrs, ATTR_OUT)) continue;
 116       if (is_ptr(arg->type))
 117       {
 118           if (type_get_type(type_pointer_get_ref(arg->type)) == TYPE_BASIC) continue;
 119           if (type_get_type(type_pointer_get_ref(arg->type)) == TYPE_ENUM) continue;
 120       }
 121       print_proxy( "if (%s) MIDL_memset( %s, 0, sizeof( *%s ));\n", arg->name, arg->name, arg->name );
 122   }
 123 }
 124
 125 static int need_delegation(const type_t *iface)
 126 {
 127     const type_t *parent = type_iface_get_inherit( iface );
 128     return parent && type_iface_get_inherit(parent) && (parent->ignore || is_local( parent->attrs ));
 129 }
 130
 131 static int get_delegation_indirect(const type_t *iface, const type_t ** delegate_to)
 132 {
 133   const type_t * cur_iface;
 134   for (cur_iface = iface; cur_iface != NULL; cur_iface = type_iface_get_inherit(cur_iface))
 135     if (need_delegation(cur_iface))
 136     {
 137       if(delegate_to)
 138         *delegate_to = type_iface_get_inherit(cur_iface);
 139       return 1;
 140     }
 141   return 0;
 142 }
 143
 144 static int need_delegation_indirect(const type_t *iface)
 145 {
 146   return get_delegation_indirect(iface, NULL);
 147 }
 148
 149 static void free_variable( const var_t *arg, const char *local_var_prefix )
 150 {
 151   unsigned int type_offset = arg->type->typestring_offset;
 152   type_t *type = arg->type;
 153
 154   write_parameter_conf_or_var_exprs(proxy, indent, local_var_prefix, PHASE_FREE, arg, FALSE);
 155
 156   switch (typegen_detect_type(type, arg->attrs, TDT_IGNORE_STRINGS))
 157   {
 158   case TGT_ENUM:
 159   case TGT_BASIC:
 160     break;
 161
 162   case TGT_STRUCT:
 163     if (get_struct_fc(type) != RPC_FC_STRUCT)
 164       print_proxy("/* FIXME: %s code for %s struct type 0x%x missing */\n", __FUNCTION__, arg->name, get_struct_fc(type) );
 165     break;
 166
 167   case TGT_IFACE_POINTER:
 168   case TGT_POINTER:
 169   case TGT_ARRAY:
 170     print_proxy( "NdrClearOutParameters( &__frame->_StubMsg, ");
 171     fprintf(proxy, "&__MIDL_TypeFormatString.Format[%u], ", type_offset );
 172     fprintf(proxy, "(void *)%s );\n", arg->name );
 173     break;
 174
 175   default:
 176     print_proxy("/* FIXME: %s code for %s type %d missing */\n", __FUNCTION__, arg->name, type_get_type(type) );
 177   }
 178 }
 179
 180 static void proxy_free_variables( var_list_t *args, const char *local_var_prefix )
 181 {
 182   const var_t *arg;
 183
 184   if (!args) return;
 185   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 186     if (is_attr(arg->attrs, ATTR_OUT))
 187     {
 188       free_variable( arg, local_var_prefix );
 189       fprintf(proxy, "\n");
 190     }
 191 }
 192
 193 static void gen_proxy(type_t *iface, const var_t *func, int idx,
 194                       unsigned int proc_offset)
 195 {
 196   type_t *rettype = type_function_get_rettype(func->type);
 197   int has_ret = !is_void(rettype);
 198   int has_full_pointer = is_full_pointer_function(func);
 199   const char *callconv = get_attrp(func->type->attrs, ATTR_CALLCONV);
 200   const var_list_t *args = type_get_function_args(func->type);
 201   if (!callconv) callconv = "STDMETHODCALLTYPE";
 202
 203   indent = 0;
 204   if (is_interpreted_func( iface, func ))
 205   {
 206       if (get_stub_mode() == MODE_Oif && !is_callas( func->attrs )) return;
 207       write_type_decl_left(proxy, type_function_get_rettype(func->type));
 208       print_proxy( " %s %s_%s_Proxy(\n", callconv, iface->name, get_name(func));
 209       write_args(proxy, args, iface->name, 1, TRUE);
 210       print_proxy( ")\n");
 211       write_client_call_routine( proxy, iface, func, "Object", proc_offset );
 212       return;
 213   }
 214   print_proxy( "static void __finally_%s_%s_Proxy( struct __proxy_frame *__frame )\n",
 215                iface->name, get_name(func) );
 216   print_proxy( "{\n");
 217   indent++;
 218   if (has_full_pointer) write_full_pointer_free(proxy, indent, func);
 219   print_proxy( "NdrProxyFreeBuffer( __frame->This, &__frame->_StubMsg );\n" );
 220   indent--;
 221   print_proxy( "}\n");
 222   print_proxy( "\n");
 223
 224   write_type_decl_left(proxy, rettype);
 225   print_proxy( " %s %s_%s_Proxy(\n", callconv, iface->name, get_name(func));
 226   write_args(proxy, args, iface->name, 1, TRUE);
 227   print_proxy( ")\n");
 228   print_proxy( "{\n");
 229   indent ++;
 230   print_proxy( "struct __proxy_frame __f, * const __frame = &__f;\n" );
 231   /* local variables */
 232   if (has_ret) {
 233     print_proxy( "%s", "" );
 234     write_type_decl_left(proxy, rettype);
 235     print_proxy( " _RetVal;\n");
 236   }
 237   print_proxy( "RPC_MESSAGE _RpcMessage;\n" );
 238   if (has_ret) {
 239     if (decl_indirect(rettype))
 240       print_proxy("void *_p_%s = &%s;\n",
 241                  "_RetVal", "_RetVal");
 242   }
 243   print_proxy( "\n");
 244
 245   print_proxy( "RpcExceptionInit( __proxy_filter, __finally_%s_%s_Proxy );\n", iface->name, get_name(func) );
 246   print_proxy( "__frame->This = This;\n" );
 247
 248   if (has_full_pointer)
 249     write_full_pointer_init(proxy, indent, func, FALSE);
 250
 251   /* FIXME: trace */
 252   clear_output_vars( type_get_function_args(func->type) );
 253
 254   print_proxy( "RpcTryExcept\n" );
 255   print_proxy( "{\n" );
 256   indent++;
 257   print_proxy( "NdrProxyInitialize(This, &_RpcMessage, &__frame->_StubMsg, &Object_StubDesc, %d);\n", idx);
 258   write_pointer_checks( proxy, indent, func );
 259
 260   print_proxy( "RpcTryFinally\n" );
 261   print_proxy( "{\n" );
 262   indent++;
 263
 264   write_remoting_arguments(proxy, indent, func, "", PASS_IN, PHASE_BUFFERSIZE);
 265
 266   print_proxy( "NdrProxyGetBuffer(This, &__frame->_StubMsg);\n" );
 267
 268   write_remoting_arguments(proxy, indent, func, "", PASS_IN, PHASE_MARSHAL);
 269
 270   print_proxy( "NdrProxySendReceive(This, &__frame->_StubMsg);\n" );
 271   fprintf(proxy, "\n");
 272   print_proxy( "__frame->_StubMsg.BufferStart = _RpcMessage.Buffer;\n" );
 273   print_proxy( "__frame->_StubMsg.BufferEnd   = __frame->_StubMsg.BufferStart + _RpcMessage.BufferLength;\n\n" );
 274
 275   print_proxy("if ((_RpcMessage.DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 276   indent++;
 277   print_proxy("NdrConvert( &__frame->_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 278   indent--;
 279   fprintf(proxy, "\n");
 280
 281   write_remoting_arguments(proxy, indent, func, "", PASS_OUT, PHASE_UNMARSHAL);
 282
 283   if (has_ret)
 284   {
 285       if (decl_indirect(rettype))
 286           print_proxy("MIDL_memset(&%s, 0, sizeof(%s));\n", "_RetVal", "_RetVal");
 287       else if (is_ptr(rettype) || is_array(rettype))
 288           print_proxy("%s = 0;\n", "_RetVal");
 289       write_remoting_arguments(proxy, indent, func, "", PASS_RETURN, PHASE_UNMARSHAL);
 290   }
 291
 292   indent--;
 293   print_proxy( "}\n");
 294   print_proxy( "RpcFinally\n" );
 295   print_proxy( "{\n" );
 296   indent++;
 297   print_proxy( "__finally_%s_%s_Proxy( __frame );\n", iface->name, get_name(func) );
 298   indent--;
 299   print_proxy( "}\n");
 300   print_proxy( "RpcEndFinally\n" );
 301   indent--;
 302   print_proxy( "}\n" );
 303   print_proxy( "RpcExcept(__frame->_StubMsg.dwStubPhase != PROXY_SENDRECEIVE)\n" );
 304   print_proxy( "{\n" );
 305   if (has_ret) {
 306     indent++;
 307     proxy_free_variables( type_get_function_args(func->type), "" );
 308     print_proxy( "_RetVal = NdrProxyErrorHandler(RpcExceptionCode());\n" );
 309     indent--;
 310   }
 311   print_proxy( "}\n" );
 312   print_proxy( "RpcEndExcept\n" );
 313
 314   if (has_ret) {
 315     print_proxy( "return _RetVal;\n" );
 316   }
 317   indent--;
 318   print_proxy( "}\n");
 319   print_proxy( "\n");
 320 }
 321
 322 static void gen_stub(type_t *iface, const var_t *func, const char *cas,
 323                      unsigned int proc_offset)
 324 {
 325   const var_t *arg;
 326   int has_ret = !is_void(type_function_get_rettype(func->type));
 327   int has_full_pointer = is_full_pointer_function(func);
 328
 329   if (is_interpreted_func( iface, func )) return;
 330
 331   indent = 0;
 332   print_proxy( "struct __frame_%s_%s_Stub\n{\n", iface->name, get_name(func));
 333   indent++;
 334   print_proxy( "__DECL_EXCEPTION_FRAME\n" );
 335   print_proxy( "MIDL_STUB_MESSAGE _StubMsg;\n");
 336   print_proxy( "%s * _This;\n", iface->name );
 337   declare_stub_args( proxy, indent, func );
 338   indent--;
 339   print_proxy( "};\n\n" );
 340
 341   print_proxy( "static void __finally_%s_%s_Stub(", iface->name, get_name(func) );
 342   print_proxy( " struct __frame_%s_%s_Stub *__frame )\n{\n", iface->name, get_name(func) );
 343   indent++;
 344   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_FREE);
 345   if (has_full_pointer)
 346     write_full_pointer_free(proxy, indent, func);
 347   indent--;
 348   print_proxy( "}\n\n" );
 349
 350   print_proxy( "void __RPC_STUB %s_%s_Stub(\n", iface->name, get_name(func));
 351   indent++;
 352   print_proxy( "IRpcStubBuffer* This,\n");
 353   print_proxy( "IRpcChannelBuffer *_pRpcChannelBuffer,\n");
 354   print_proxy( "PRPC_MESSAGE _pRpcMessage,\n");
 355   print_proxy( "DWORD* _pdwStubPhase)\n");
 356   indent--;
 357   print_proxy( "{\n");
 358   indent++;
 359   print_proxy( "struct __frame_%s_%s_Stub __f, * const __frame = &__f;\n\n",
 360                iface->name, get_name(func) );
 361
 362   print_proxy("__frame->_This = (%s*)((CStdStubBuffer*)This)->pvServerObject;\n\n", iface->name);
 363
 364   /* FIXME: trace */
 365
 366   print_proxy("NdrStubInitialize(_pRpcMessage, &__frame->_StubMsg, &Object_StubDesc, _pRpcChannelBuffer);\n");
 367   fprintf(proxy, "\n");
 368   print_proxy( "RpcExceptionInit( 0, __finally_%s_%s_Stub );\n", iface->name, get_name(func) );
 369
 370   write_parameters_init(proxy, indent, func, "__frame->");
 371
 372   print_proxy("RpcTryFinally\n");
 373   print_proxy("{\n");
 374   indent++;
 375   if (has_full_pointer)
 376     write_full_pointer_init(proxy, indent, func, TRUE);
 377   print_proxy("if ((_pRpcMessage->DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 378   indent++;
 379   print_proxy("NdrConvert( &__frame->_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 380   indent--;
 381   fprintf(proxy, "\n");
 382
 383   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_IN, PHASE_UNMARSHAL);
 384   fprintf(proxy, "\n");
 385
 386   assign_stub_out_args( proxy, indent, func, "__frame->" );
 387
 388   print_proxy("*_pdwStubPhase = STUB_CALL_SERVER;\n");
 389   fprintf(proxy, "\n");
 390   print_proxy( "%s", has_ret ? "__frame->_RetVal = " : "" );
 391   if (cas) fprintf(proxy, "%s_%s_Stub", iface->name, cas);
 392   else fprintf(proxy, "__frame->_This->lpVtbl->%s", get_name(func));
 393   fprintf(proxy, "(__frame->_This");
 394
 395   if (type_get_function_args(func->type))
 396   {
 397       LIST_FOR_EACH_ENTRY( arg, type_get_function_args(func->type), const var_t, entry )
 398           fprintf(proxy, ", %s__frame->%s", is_array(arg->type) && !type_array_is_decl_as_ptr(arg->type) ? "*" :"" , arg->name);
 399   }
 400   fprintf(proxy, ");\n");
 401   fprintf(proxy, "\n");
 402   print_proxy("*_pdwStubPhase = STUB_MARSHAL;\n");
 403   fprintf(proxy, "\n");
 404
 405   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_BUFFERSIZE);
 406
 407   if (!is_void(type_function_get_rettype(func->type)))
 408     write_remoting_arguments(proxy, indent, func, "__frame->", PASS_RETURN, PHASE_BUFFERSIZE);
 409
 410   print_proxy("NdrStubGetBuffer(This, _pRpcChannelBuffer, &__frame->_StubMsg);\n");
 411
 412   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_MARSHAL);
 413   fprintf(proxy, "\n");
 414
 415   /* marshall the return value */
 416   if (!is_void(type_function_get_rettype(func->type)))
 417     write_remoting_arguments(proxy, indent, func, "__frame->", PASS_RETURN, PHASE_MARSHAL);
 418
 419   indent--;
 420   print_proxy("}\n");
 421   print_proxy("RpcFinally\n");
 422   print_proxy("{\n");
 423   indent++;
 424   print_proxy( "__finally_%s_%s_Stub( __frame );\n", iface->name, get_name(func) );
 425   indent--;
 426   print_proxy("}\n");
 427   print_proxy("RpcEndFinally\n");
 428
 429   print_proxy("_pRpcMessage->BufferLength = __frame->_StubMsg.Buffer - (unsigned char *)_pRpcMessage->Buffer;\n");
 430   indent--;
 431
 432   print_proxy("}\n");
 433   print_proxy("\n");
 434 }
 435
 436 static void gen_stub_thunk( type_t *iface, const var_t *func, unsigned int proc_offset )
 437 {
 438     int has_ret = !is_void( type_function_get_rettype( func->type ));
 439     const var_t *arg, *callas = is_callas( func->attrs );
 440     const var_list_t *args = type_get_function_args( func->type );
 441
 442     indent = 0;
 443     print_proxy( "void __RPC_API %s_%s_Thunk( PMIDL_STUB_MESSAGE pStubMsg )\n",
 444                  iface->name, get_name(func) );
 445     print_proxy( "{\n");
 446     indent++;
 447     write_func_param_struct( proxy, iface, func->type,
 448                              "*pParamStruct = (struct _PARAM_STRUCT *)pStubMsg->StackTop", has_ret );
 449     print_proxy( "%s%s_%s_Stub( pParamStruct->This",
 450                  has_ret ? "pParamStruct->_RetVal = " : "", iface->name, callas->name );
 451     indent++;
 452     if (args) LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 453     {
 454         fprintf( proxy, ",\n%*spParamStruct->%s", 4 * indent, "", arg->name );
 455     }
 456     fprintf( proxy, " );\n" );
 457     indent--;
 458     indent--;
 459     print_proxy( "}\n\n");
 460 }
 461
 462 int count_methods(const type_t *iface)
 463 {
 464     const statement_t *stmt;
 465     int count = 0;
 466
 467     if (type_iface_get_inherit(iface))
 468         count = count_methods(type_iface_get_inherit(iface));
 469
 470     STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 471         const var_t *func = stmt->u.var;
 472         if (!is_callas(func->attrs)) count++;
 473     }
 474     return count;
 475 }
 476
 477 static const statement_t * get_callas_source(const type_t * iface, const var_t * def)
 478 {
 479   const statement_t * source;
 480   STATEMENTS_FOR_EACH_FUNC( source, type_iface_get_stmts(iface)) {
 481     const var_t * cas = is_callas(source->u.var->attrs );
 482     if (cas && !strcmp(def->name, cas->name))
 483       return source;
 484   }
 485   return NULL;
 486 }
 487
 488 static void write_proxy_procformatstring_offsets( const type_t *iface, int skip )
 489 {
 490     const statement_t *stmt;
 491
 492     if (type_iface_get_inherit(iface))
 493         write_proxy_procformatstring_offsets( type_iface_get_inherit(iface), need_delegation(iface));
 494     else
 495         return;
 496
 497     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
 498     {
 499         const var_t *func = stmt->u.var;
 500         int missing = 0;
 501
 502         if (is_callas(func->attrs)) continue;
 503         if (is_local(func->attrs))
 504         {
 505             const statement_t * callas_source = get_callas_source(iface, func);
 506             if (!callas_source)
 507                 missing = 1;
 508             else
 509                 func = callas_source->u.var;
 510         }
 511         if (skip || missing)
 512             print_proxy( "(unsigned short)-1,  /* %s::%s */\n", iface->name, get_name(func));
 513         else
 514             print_proxy( "%u,  /* %s::%s */\n", func->procstring_offset, iface->name, get_name(func));
 515     }
 516 }
 517
 518 static int write_proxy_methods(type_t *iface, int skip)
 519 {
 520   const statement_t *stmt;
 521   int i = 0;
 522
 523   if (type_iface_get_inherit(iface))
 524     i = write_proxy_methods(type_iface_get_inherit(iface),
 525                             need_delegation(iface));
 526   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 527     const var_t *func = stmt->u.var;
 528     if (!is_callas(func->attrs)) {
 529       if (skip || (is_local(func->attrs) && !get_callas_source(iface, func)))
 530           print_proxy( "0,  /* %s::%s */\n", iface->name, get_name(func));
 531       else if (is_interpreted_func( iface, func ) &&
 532                !is_local( func->attrs ) &&
 533                type_iface_get_inherit(iface))
 534           print_proxy( "(void *)-1,  /* %s::%s */\n", iface->name, get_name(func));
 535       else
 536           print_proxy( "%s_%s_Proxy,\n", iface->name, get_name(func));
 537       i++;
 538     }
 539   }
 540   return i;
 541 }
 542
 543 static int write_stub_methods(type_t *iface, int skip)
 544 {
 545   const statement_t *stmt;
 546   int i = 0;
 547
 548   if (type_iface_get_inherit(iface))
 549     i = write_stub_methods(type_iface_get_inherit(iface), need_delegation(iface));
 550   else
 551     return i; /* skip IUnknown */
 552
 553   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 554     const var_t *func = stmt->u.var;
 555     if (!is_callas(func->attrs)) {
 556       int missing = 0;
 557       const char * fname = get_name(func);
 558       if(is_local(func->attrs)) {
 559         const statement_t * callas_source = get_callas_source(iface, func);
 560         if(!callas_source)
 561           missing = 1;
 562         else
 563           fname = get_name(callas_source->u.var);
 564       }
 565       if (i) fprintf(proxy,",\n");
 566       if (skip || missing) print_proxy("STUB_FORWARDING_FUNCTION");
 567       else if (is_interpreted_func( iface, func ))
 568           print_proxy( "(PRPC_STUB_FUNCTION)%s", get_stub_mode() == MODE_Oif ? "NdrStubCall2" : "NdrStubCall" );
 569       else print_proxy( "%s_%s_Stub", iface->name, fname);
 570       i++;
 571     }
 572   }
 573   return i;
 574 }
 575
 576 static void write_thunk_methods( type_t *iface, int skip )
 577 {
 578     const statement_t *stmt;
 579
 580     if (type_iface_get_inherit( iface ))
 581         write_thunk_methods( type_iface_get_inherit(iface), need_delegation(iface) );
 582     else
 583         return; /* skip IUnknown */
 584
 585     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
 586     {
 587         var_t *func = stmt->u.var;
 588         const statement_t * callas_source = NULL;
 589
 590         if (is_callas(func->attrs)) continue;
 591         if (is_local(func->attrs)) callas_source = get_callas_source(iface, func);
 592
 593         if (!skip && callas_source && is_interpreted_func( iface, func ))
 594             print_proxy( "%s_%s_Thunk,\n", iface->name, get_name(callas_source->u.var) );
 595         else
 596             print_proxy( "0, /* %s::%s */\n", iface->name, get_name(func) );
 597     }
 598 }
 599
 600 static void write_proxy(type_t *iface, unsigned int *proc_offset)
 601 {
 602   int count;
 603   const statement_t *stmt;
 604   int first_func = 1;
 605   int needs_stub_thunks = 0;
 606   int needs_inline_stubs = need_inline_stubs( iface ) || need_delegation( iface );
 607
 608   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 609     var_t *func = stmt->u.var;
 610     if (first_func) {
 611       fprintf(proxy, "/*****************************************************************************\n");
 612       fprintf(proxy, " * %s interface\n", iface->name);
 613       fprintf(proxy, " */\n");
 614       first_func = 0;
 615     }
 616     if (!is_local(func->attrs)) {
 617       const var_t *cas = is_callas(func->attrs);
 618       const char *cname = cas ? cas->name : NULL;
 619       int idx = func->type->details.function->idx;
 620       if (cname) {
 621           const statement_t *stmt2;
 622           STATEMENTS_FOR_EACH_FUNC(stmt2, type_iface_get_stmts(iface)) {
 623               const var_t *m = stmt2->u.var;
 624               if (!strcmp(m->name, cname))
 625               {
 626                   idx = m->type->details.function->idx;
 627                   break;
 628               }
 629           }
 630       }
 631       func->procstring_offset = *proc_offset;
 632       gen_proxy(iface, func, idx, *proc_offset);
 633       gen_stub(iface, func, cname, *proc_offset);
 634       if (cas && is_interpreted_func( iface, func ))
 635       {
 636           needs_stub_thunks = 1;
 637           gen_stub_thunk(iface, func, *proc_offset);
 638       }
 639       *proc_offset += get_size_procformatstring_func( iface, func );
 640     }
 641   }
 642
 643   count = count_methods(iface);
 644
 645   print_proxy( "static const unsigned short %s_FormatStringOffsetTable[] =\n", iface->name );
 646   print_proxy( "{\n" );
 647   indent++;
 648   write_proxy_procformatstring_offsets( iface, 0 );
 649   indent--;
 650   print_proxy( "};\n\n" );
 651
 652   /* proxy info */
 653   if (get_stub_mode() == MODE_Oif)
 654   {
 655       print_proxy( "static const MIDL_STUBLESS_PROXY_INFO %s_ProxyInfo =\n", iface->name );
 656       print_proxy( "{\n" );
 657       indent++;
 658       print_proxy( "&Object_StubDesc,\n" );
 659       print_proxy( "__MIDL_ProcFormatString.Format,\n" );
 660       print_proxy( "&%s_FormatStringOffsetTable[-3],\n", iface->name );
 661       print_proxy( "0,\n" );
 662       print_proxy( "0,\n" );
 663       print_proxy( "0\n" );
 664       indent--;
 665       print_proxy( "};\n\n" );
 666   }
 667
 668   /* proxy vtable */
 669   print_proxy( "static %sCINTERFACE_PROXY_VTABLE(%d) _%sProxyVtbl =\n",
 670                need_delegation_indirect(iface) ? "" : "const ", count, iface->name);
 671   print_proxy( "{\n");
 672   indent++;
 673   print_proxy( "{\n");
 674   indent++;
 675   if (get_stub_mode() == MODE_Oif) print_proxy( "&%s_ProxyInfo,\n", iface->name );
 676   print_proxy( "&IID_%s,\n", iface->name);
 677   indent--;
 678   print_proxy( "},\n");
 679   print_proxy( "{\n");
 680   indent++;
 681   write_proxy_methods(iface, FALSE);
 682   indent--;
 683   print_proxy( "}\n");
 684   indent--;
 685   print_proxy( "};\n\n");
 686
 687   /* stub thunk table */
 688   if (needs_stub_thunks)
 689   {
 690       print_proxy( "static const STUB_THUNK %s_StubThunkTable[] =\n", iface->name);
 691       print_proxy( "{\n");
 692       indent++;
 693       write_thunk_methods( iface, 0 );
 694       indent--;
 695       print_proxy( "};\n\n");
 696   }
 697
 698   /* server info */
 699   print_proxy( "static const MIDL_SERVER_INFO %s_ServerInfo =\n", iface->name );
 700   print_proxy( "{\n" );
 701   indent++;
 702   print_proxy( "&Object_StubDesc,\n" );
 703   print_proxy( "0,\n" );
 704   print_proxy( "__MIDL_ProcFormatString.Format,\n" );
 705   print_proxy( "&%s_FormatStringOffsetTable[-3],\n", iface->name );
 706   if (needs_stub_thunks)
 707       print_proxy( "&%s_StubThunkTable[-3],\n", iface->name );
 708   else
 709       print_proxy( "0,\n" );
 710   print_proxy( "0,\n" );
 711   print_proxy( "0,\n" );
 712   print_proxy( "0\n" );
 713   indent--;
 714   print_proxy( "};\n\n" );
 715
 716   /* stub vtable */
 717   if (needs_inline_stubs)
 718   {
 719       print_proxy( "static const PRPC_STUB_FUNCTION %s_table[] =\n", iface->name);
 720       print_proxy( "{\n");
 721       indent++;
 722       write_stub_methods(iface, FALSE);
 723       fprintf(proxy, "\n");
 724       indent--;
 725       fprintf(proxy, "};\n\n");
 726   }
 727   print_proxy( "static %sCInterfaceStubVtbl _%sStubVtbl =\n",
 728                need_delegation_indirect(iface) ? "" : "const ", iface->name);
 729   print_proxy( "{\n");
 730   indent++;
 731   print_proxy( "{\n");
 732   indent++;
 733   print_proxy( "&IID_%s,\n", iface->name);
 734   print_proxy( "&%s_ServerInfo,\n", iface->name );
 735   print_proxy( "%d,\n", count);
 736   if (needs_inline_stubs) print_proxy( "&%s_table[-3]\n", iface->name );
 737   else print_proxy( "0\n" );
 738   indent--;
 739   print_proxy( "},\n");
 740   print_proxy( "{\n");
 741   indent++;
 742   print_proxy( "CStdStubBuffer_%s\n", need_delegation_indirect(iface) ? "DELEGATING_METHODS" : "METHODS");
 743   indent--;
 744   print_proxy( "}\n");
 745   indent--;
 746   print_proxy( "};\n");
 747   print_proxy( "\n");
 748 }
 749
 750 static int does_any_iface(const statement_list_t *stmts, type_pred_t pred)
 751 {
 752   const statement_t *stmt;
 753
 754   if (stmts)
 755     LIST_FOR_EACH_ENTRY(stmt, stmts, const statement_t, entry)
 756     {
 757       if (stmt->type == STMT_LIBRARY)
 758       {
 759           if (does_any_iface(stmt->u.lib->stmts, pred))
 760               return TRUE;
 761       }
 762       else if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
 763       {
 764         if (pred(stmt->u.type))
 765           return TRUE;
 766       }
 767     }
 768
 769   return FALSE;
 770 }
 771
 772 int need_proxy(const type_t *iface)
 773 {
 774     if (!is_object( iface )) return 0;
 775     if (is_local( iface->attrs )) return 0;
 776     if (is_attr( iface->attrs, ATTR_OLEAUTOMATION )) return 0;
 777     if (is_attr( iface->attrs, ATTR_DISPINTERFACE )) return 0;
 778     return 1;
 779 }
 780
 781 int need_stub(const type_t *iface)
 782 {
 783   return !is_object(iface) && !is_local(iface->attrs);
 784 }
 785
 786 int need_proxy_file(const statement_list_t *stmts)
 787 {
 788   return does_any_iface(stmts, need_proxy);
 789 }
 790
 791 int need_inline_stubs(const type_t *iface)
 792 {
 793     const statement_t *stmt;
 794
 795     if (get_stub_mode() == MODE_Os) return 1;
 796
 797     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
 798     {
 799         const var_t *func = stmt->u.var;
 800         if (is_local( func->attrs )) continue;
 801         if (!is_interpreted_func( iface, func )) return 1;
 802     }
 803     return 0;
 804 }
 805
 806 static int need_proxy_and_inline_stubs(const type_t *iface)
 807 {
 808     const statement_t *stmt;
 809
 810     if (!need_proxy( iface )) return 0;
 811     if (get_stub_mode() == MODE_Os) return 1;
 812
 813     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
 814     {
 815         const var_t *func = stmt->u.var;
 816         if (is_local( func->attrs )) continue;
 817         if (!is_interpreted_func( iface, func )) return 1;
 818     }
 819     return 0;
 820 }
 821
 822 int need_stub_files(const statement_list_t *stmts)
 823 {
 824   return does_any_iface(stmts, need_stub);
 825 }
 826
 827 int need_inline_stubs_file(const statement_list_t *stmts)
 828 {
 829   return does_any_iface(stmts, need_inline_stubs);
 830 }
 831
 832 static void write_proxy_stmts(const statement_list_t *stmts, unsigned int *proc_offset)
 833 {
 834   const statement_t *stmt;
 835   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 836   {
 837     if (stmt->type == STMT_LIBRARY)
 838       write_proxy_stmts(stmt->u.lib->stmts, proc_offset);
 839     else if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
 840     {
 841       if (need_proxy(stmt->u.type))
 842         write_proxy(stmt->u.type, proc_offset);
 843     }
 844   }
 845 }
 846
 847 static int cmp_iid( const void *ptr1, const void *ptr2 )
 848 {
 849     const type_t * const *iface1 = ptr1;
 850     const type_t * const *iface2 = ptr2;
 851     const UUID *uuid1 = get_attrp( (*iface1)->attrs, ATTR_UUID );
 852     const UUID *uuid2 = get_attrp( (*iface2)->attrs, ATTR_UUID );
 853     return memcmp( uuid1, uuid2, sizeof(UUID) );
 854 }
 855
 856 static void build_iface_list( const statement_list_t *stmts, type_t **ifaces[], int *count )
 857 {
 858     const statement_t *stmt;
 859
 860     if (!stmts) return;
 861     LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 862     {
 863         if (stmt->type == STMT_LIBRARY)
 864             build_iface_list(stmt->u.lib->stmts, ifaces, count);
 865         else if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
 866         {
 867             type_t *iface = stmt->u.type;
 868             if (type_iface_get_inherit(iface) && need_proxy(iface))
 869             {
 870                 *ifaces = xrealloc( *ifaces, (*count + 1) * sizeof(**ifaces) );
 871                 (*ifaces)[(*count)++] = iface;
 872             }
 873         }
 874     }
 875 }
 876
 877 static type_t **sort_interfaces( const statement_list_t *stmts, int *count )
 878 {
 879     type_t **ifaces = NULL;
 880
 881     *count = 0;
 882     build_iface_list( stmts, &ifaces, count );
 883     qsort( ifaces, *count, sizeof(*ifaces), cmp_iid );
 884     return ifaces;
 885 }
 886
 887 static void write_proxy_routines(const statement_list_t *stmts)
 888 {
 889   int expr_eval_routines;
 890   unsigned int proc_offset = 0;
 891   char *file_id = proxy_token;
 892   int i, count, have_baseiid = 0;
 893   type_t **interfaces;
 894   const type_t * delegate_to;
 895
 896   print_proxy( "#ifndef __REDQ_RPCPROXY_H_VERSION__\n");
 897   print_proxy( "#define __REQUIRED_RPCPROXY_H_VERSION__ %u\n", get_stub_mode() == MODE_Oif ? 475 : 440);
 898   print_proxy( "#endif\n");
 899   print_proxy( "\n");
 900   if (get_stub_mode() == MODE_Oif) print_proxy( "#define USE_STUBLESS_PROXY\n");
 901   print_proxy( "#include \"rpcproxy.h\"\n");
 902   print_proxy( "#ifndef __RPCPROXY_H_VERSION__\n");
 903   print_proxy( "#error This code needs a newer version of rpcproxy.h\n");
 904   print_proxy( "#endif /* __RPCPROXY_H_VERSION__ */\n");
 905   print_proxy( "\n");
 906   print_proxy( "#include \"%s\"\n", header_name);
 907   print_proxy( "\n");
 908
 909   if (does_any_iface(stmts, need_proxy_and_inline_stubs))
 910   {
 911       write_exceptions( proxy );
 912       print_proxy( "\n");
 913       print_proxy( "struct __proxy_frame\n");
 914       print_proxy( "{\n");
 915       print_proxy( "    __DECL_EXCEPTION_FRAME\n");
 916       print_proxy( "    MIDL_STUB_MESSAGE _StubMsg;\n");
 917       print_proxy( "    void             *This;\n");
 918       print_proxy( "};\n");
 919       print_proxy( "\n");
 920       print_proxy("static int __proxy_filter( struct __proxy_frame *__frame )\n");
 921       print_proxy( "{\n");
 922       print_proxy( "    return (__frame->_StubMsg.dwStubPhase != PROXY_SENDRECEIVE);\n");
 923       print_proxy( "}\n");
 924       print_proxy( "\n");
 925   }
 926
 927   write_formatstringsdecl(proxy, indent, stmts, need_proxy);
 928   write_stubdescproto();
 929   write_proxy_stmts(stmts, &proc_offset);
 930
 931   expr_eval_routines = write_expr_eval_routines(proxy, proxy_token);
 932   if (expr_eval_routines)
 933       write_expr_eval_routine_list(proxy, proxy_token);
 934   write_user_quad_list(proxy);
 935   write_stubdesc(expr_eval_routines);
 936
 937   print_proxy( "#if !defined(__RPC_WIN%u__)\n", pointer_size == 8 ? 64 : 32);
 938   print_proxy( "#error Currently only Wine and WIN32 are supported.\n");
 939   print_proxy( "#endif\n");
 940   print_proxy( "\n");
 941   write_procformatstring(proxy, stmts, need_proxy);
 942   write_typeformatstring(proxy, stmts, need_proxy);
 943
 944   interfaces = sort_interfaces(stmts, &count);
 945   fprintf(proxy, "static const CInterfaceProxyVtbl* const _%s_ProxyVtblList[] =\n", file_id);
 946   fprintf(proxy, "{\n");
 947   for (i = 0; i < count; i++)
 948       fprintf(proxy, "    (const CInterfaceProxyVtbl*)&_%sProxyVtbl,\n", interfaces[i]->name);
 949   fprintf(proxy, "    0\n");
 950   fprintf(proxy, "};\n");
 951   fprintf(proxy, "\n");
 952
 953   fprintf(proxy, "static const CInterfaceStubVtbl* const _%s_StubVtblList[] =\n", file_id);
 954   fprintf(proxy, "{\n");
 955   for (i = 0; i < count; i++)
 956       fprintf(proxy, "    &_%sStubVtbl,\n", interfaces[i]->name);
 957   fprintf(proxy, "    0\n");
 958   fprintf(proxy, "};\n");
 959   fprintf(proxy, "\n");
 960
 961   fprintf(proxy, "static PCInterfaceName const _%s_InterfaceNamesList[] =\n", file_id);
 962   fprintf(proxy, "{\n");
 963   for (i = 0; i < count; i++)
 964       fprintf(proxy, "    \"%s\",\n", interfaces[i]->name);
 965   fprintf(proxy, "    0\n");
 966   fprintf(proxy, "};\n");
 967   fprintf(proxy, "\n");
 968
 969   for (i = 0; i < count; i++)
 970       if ((have_baseiid = get_delegation_indirect( interfaces[i], NULL ))) break;
 971
 972   if (have_baseiid)
 973   {
 974       fprintf(proxy, "static const IID * _%s_BaseIIDList[] =\n", file_id);
 975       fprintf(proxy, "{\n");
 976       for (i = 0; i < count; i++)
 977       {
 978           if (get_delegation_indirect(interfaces[i], &delegate_to))
 979               fprintf( proxy, "    &IID_%s,  /* %s */\n", delegate_to->name, interfaces[i]->name );
 980           else
 981               fprintf( proxy, "    0,\n" );
 982       }
 983       fprintf(proxy, "    0\n");
 984       fprintf(proxy, "};\n");
 985       fprintf(proxy, "\n");
 986   }
 987
 988   fprintf(proxy, "static int __stdcall _%s_IID_Lookup(const IID* pIID, int* pIndex)\n", file_id);
 989   fprintf(proxy, "{\n");
 990   fprintf(proxy, "    int low = 0, high = %d;\n", count - 1);
 991   fprintf(proxy, "\n");
 992   fprintf(proxy, "    while (low <= high)\n");
 993   fprintf(proxy, "    {\n");
 994   fprintf(proxy, "        int pos = (low + high) / 2;\n");
 995   fprintf(proxy, "        int res = IID_GENERIC_CHECK_IID(_%s, pIID, pos);\n", file_id);
 996   fprintf(proxy, "        if (!res) { *pIndex = pos; return 1; }\n");
 997   fprintf(proxy, "        if (res > 0) low = pos + 1;\n");
 998   fprintf(proxy, "        else high = pos - 1;\n");
 999   fprintf(proxy, "    }\n");
1000   fprintf(proxy, "    return 0;\n");
1001   fprintf(proxy, "}\n");
1002   fprintf(proxy, "\n");
1003
1004   fprintf(proxy, "const ExtendedProxyFileInfo %s_ProxyFileInfo DECLSPEC_HIDDEN =\n", file_id);
1005   fprintf(proxy, "{\n");
1006   fprintf(proxy, "    (const PCInterfaceProxyVtblList*)_%s_ProxyVtblList,\n", file_id);
1007   fprintf(proxy, "    (const PCInterfaceStubVtblList*)_%s_StubVtblList,\n", file_id);
1008   fprintf(proxy, "    _%s_InterfaceNamesList,\n", file_id);
1009   if (have_baseiid) fprintf(proxy, "    _%s_BaseIIDList,\n", file_id);
1010   else fprintf(proxy, "    0,\n");
1011   fprintf(proxy, "    _%s_IID_Lookup,\n", file_id);
1012   fprintf(proxy, "    %d,\n", count);
1013   fprintf(proxy, "    %d,\n", get_stub_mode() == MODE_Oif ? 2 : 1);
1014   fprintf(proxy, "    0,\n");
1015   fprintf(proxy, "    0,\n");
1016   fprintf(proxy, "    0,\n");
1017   fprintf(proxy, "    0\n");
1018   fprintf(proxy, "};\n");
1019 }
1020
1021 void write_proxies(const statement_list_t *stmts)
1022 {
1023   if (!do_proxies) return;
1024   if (do_everything && !need_proxy_file(stmts)) return;
1025
1026   init_proxy(stmts);
1027   if(!proxy) return;
1028
1029   if (do_win32 && do_win64)
1030   {
1031       fprintf(proxy, "\n#ifndef _WIN64\n\n");
1032       pointer_size = 4;
1033       write_proxy_routines( stmts );
1034       fprintf(proxy, "\n#else /* _WIN64 */\n\n");
1035       pointer_size = 8;
1036       write_proxy_routines( stmts );
1037       fprintf(proxy, "\n#endif /* _WIN64 */\n");
1038   }
1039   else if (do_win32)
1040   {
1041       pointer_size = 4;
1042       write_proxy_routines( stmts );
1043   }
1044   else if (do_win64)
1045   {
1046       pointer_size = 8;
1047       write_proxy_routines( stmts );
1048   }
1049
1050   fclose(proxy);
1051 }