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 /* FIXME: support generation of stubless proxies */
  52
  53 static void print_proxy( const char *format, ... )
  54 {
  55   va_list va;
  56   va_start( va, format );
  57   print( proxy, indent, format, va );
  58   va_end( va );
  59 }
  60
  61 static void write_stubdescproto(void)
  62 {
  63   print_proxy( "static const MIDL_STUB_DESC Object_StubDesc;\n");
  64   print_proxy( "\n");
  65 }
  66
  67 static void write_stubdesc(int expr_eval_routines)
  68 {
  69   print_proxy( "static const MIDL_STUB_DESC Object_StubDesc =\n{\n");
  70   indent++;
  71   print_proxy( "0,\n");
  72   print_proxy( "NdrOleAllocate,\n");
  73   print_proxy( "NdrOleFree,\n");
  74   print_proxy( "{0}, 0, 0, %s, 0,\n", expr_eval_routines ? "ExprEvalRoutines" : "0");
  75   print_proxy( "__MIDL_TypeFormatString.Format,\n");
  76   print_proxy( "1, /* -error bounds_check flag */\n");
  77   print_proxy( "0x10001, /* Ndr library version */\n");
  78   print_proxy( "0,\n");
  79   print_proxy( "0x50100a4, /* MIDL Version 5.1.164 */\n");
  80   print_proxy( "0,\n");
  81   print_proxy("%s,\n", list_empty(&user_type_list) ? "0" : "UserMarshalRoutines");
  82   print_proxy( "0,  /* notify & notify_flag routine table */\n");
  83   print_proxy( "1,  /* Flags */\n");
  84   print_proxy( "0,  /* Reserved3 */\n");
  85   print_proxy( "0,  /* Reserved4 */\n");
  86   print_proxy( "0   /* Reserved5 */\n");
  87   indent--;
  88   print_proxy( "};\n");
  89   print_proxy( "\n");
  90 }
  91
  92 static void init_proxy(const statement_list_t *stmts)
  93 {
  94   if (proxy) return;
  95   if(!(proxy = fopen(proxy_name, "w")))
  96     error("Could not open %s for output\n", proxy_name);
  97   print_proxy( "/*** Autogenerated by WIDL %s from %s - Do not edit ***/\n", PACKAGE_VERSION, input_name);
  98   print_proxy( "\n");
  99   print_proxy( "#ifndef __REDQ_RPCPROXY_H_VERSION__\n");
 100   print_proxy( "#define __REQUIRED_RPCPROXY_H_VERSION__ 440\n");
 101   print_proxy( "#endif /* __REDQ_RPCPROXY_H_VERSION__ */\n");
 102   print_proxy( "\n");
 103   print_proxy( "#define __midl_proxy\n");
 104   print_proxy( "#include \"objbase.h\"\n");
 105   print_proxy( "#include \"rpcproxy.h\"\n");
 106   print_proxy( "#ifndef __RPCPROXY_H_VERSION__\n");
 107   print_proxy( "#error This code needs a newer version of rpcproxy.h\n");
 108   print_proxy( "#endif /* __RPCPROXY_H_VERSION__ */\n");
 109   print_proxy( "\n");
 110   print_proxy( "#include \"%s\"\n", header_name);
 111   print_proxy( "\n");
 112   print_proxy( "#ifndef USE_COMPILER_EXCEPTIONS\n");
 113   print_proxy( "\n");
 114   print_proxy( "#include \"wine/exception.h\"\n");
 115   print_proxy( "#undef RpcTryExcept\n");
 116   print_proxy( "#undef RpcExcept\n");
 117   print_proxy( "#undef RpcEndExcept\n");
 118   print_proxy( "#undef RpcExceptionCode\n");
 119   print_proxy( "\n");
 120   print_proxy( "struct __proxy_frame\n");
 121   print_proxy( "{\n");
 122   print_proxy( "    EXCEPTION_REGISTRATION_RECORD frame;\n");
 123   print_proxy( "    sigjmp_buf                    jmp;\n");
 124   print_proxy( "    DWORD                         code;\n");
 125   print_proxy( "    MIDL_STUB_MESSAGE            *stub;\n");
 126   print_proxy( "};\n");
 127   print_proxy( "\n");
 128   print_proxy( "static DWORD __proxy_exception_handler( EXCEPTION_RECORD *record,\n");
 129   print_proxy( "                                        EXCEPTION_REGISTRATION_RECORD *frame,\n");
 130   print_proxy( "                                        CONTEXT *context,\n");
 131   print_proxy( "                                        EXCEPTION_REGISTRATION_RECORD **pdispatcher )\n");
 132   print_proxy( "{\n");
 133   print_proxy( "    struct __proxy_frame *proxy_frame = (struct __proxy_frame *)frame;\n");
 134   print_proxy( "\n");
 135   print_proxy( "    if (record->ExceptionFlags & (EH_UNWINDING | EH_EXIT_UNWIND | EH_NESTED_CALL))\n");
 136   print_proxy( "        return ExceptionContinueSearch;\n");
 137   print_proxy( "    if (proxy_frame->stub->dwStubPhase == PROXY_SENDRECEIVE)\n");
 138   print_proxy( "        return ExceptionContinueSearch;\n");
 139   print_proxy( "\n");
 140   print_proxy( "    proxy_frame->code = record->ExceptionCode;\n");
 141   print_proxy( "    __wine_rtl_unwind( frame, record );\n");
 142   print_proxy( "    __wine_pop_frame( frame );\n");
 143   print_proxy( "    siglongjmp( proxy_frame->jmp, 1 );\n");
 144   print_proxy( "}\n");
 145   print_proxy( "\n");
 146   print_proxy( "#define RpcTryExcept \\\n");
 147   print_proxy( "    do { \\\n");
 148   print_proxy( "        struct __proxy_frame __proxy_frame; \\\n");
 149   print_proxy( "        __proxy_frame.frame.Handler = __proxy_exception_handler; \\\n");
 150   print_proxy( "        __proxy_frame.stub = &_StubMsg; \\\n");
 151   print_proxy( "        if (!sigsetjmp( __proxy_frame.jmp, 0 )) \\\n");
 152   print_proxy( "        { \\\n");
 153   print_proxy( "            __wine_push_frame( &__proxy_frame.frame ); \\\n");
 154   print_proxy( "            {\n");
 155   print_proxy( "\n");
 156   print_proxy( "#define RpcExcept(expr) \\\n");
 157   print_proxy( "            } \\\n");
 158   print_proxy( "            __wine_pop_frame( &__proxy_frame.frame ); \\\n");
 159   print_proxy( "        } \\\n");
 160   print_proxy( "        else \\\n");
 161   print_proxy( "        {\n");
 162   print_proxy( "\n");
 163   print_proxy( "#define RpcEndExcept \\\n");
 164   print_proxy( "        } \\\n");
 165   print_proxy( "    } while(0);\n");
 166   print_proxy( "\n");
 167   print_proxy( "#define RpcExceptionCode() (__proxy_frame.code)\n");
 168   print_proxy( "\n");
 169   print_proxy( "#endif /* USE_COMPILER_EXCEPTIONS */\n");
 170   print_proxy( "\n");
 171   write_formatstringsdecl(proxy, indent, stmts, need_proxy);
 172   write_stubdescproto();
 173 }
 174
 175 static void clear_output_vars( const var_list_t *args )
 176 {
 177   const var_t *arg;
 178
 179   if (!args) return;
 180   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 181   {
 182     if (is_attr(arg->attrs, ATTR_OUT) && !is_attr(arg->attrs, ATTR_IN)) {
 183       print_proxy( "if(%s)\n", arg->name );
 184       indent++;
 185       print_proxy( "MIDL_memset( %s, 0, sizeof( *%s ));\n", arg->name, arg->name );
 186       indent--;
 187     }
 188   }
 189 }
 190
 191 int is_var_ptr(const var_t *v)
 192 {
 193   return is_ptr(v->type);
 194 }
 195
 196 int cant_be_null(const var_t *v)
 197 {
 198   /* Search backwards for the most recent pointer attribute.  */
 199   const attr_list_t *attrs = v->attrs;
 200   const type_t *type = v->type;
 201
 202   /* context handles have their own checking so they can be null for the
 203    * purposes of null ref pointer checking */
 204   if (is_aliaschain_attr(type, ATTR_CONTEXTHANDLE))
 205       return 0;
 206
 207   if (! attrs && type)
 208   {
 209     attrs = type->attrs;
 210     type = type->ref;
 211   }
 212
 213   while (attrs)
 214   {
 215     int t = get_attrv(attrs, ATTR_POINTERTYPE);
 216
 217     if (t == RPC_FC_FP || t == RPC_FC_OP || t == RPC_FC_UP)
 218       return 0;
 219
 220     if (t == RPC_FC_RP)
 221       return 1;
 222
 223     if (type)
 224     {
 225       attrs = type->attrs;
 226       type = type->ref;
 227     }
 228     else
 229       attrs = NULL;
 230   }
 231
 232   return 1;                             /* Default is RPC_FC_RP.  */
 233 }
 234
 235 static void proxy_check_pointers( const var_list_t *args )
 236 {
 237   const var_t *arg;
 238
 239   if (!args) return;
 240   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 241   {
 242     if (is_var_ptr(arg) && cant_be_null(arg)) {
 243         print_proxy( "if(!%s)\n", arg->name );
 244         indent++;
 245         print_proxy( "RpcRaiseException(RPC_X_NULL_REF_POINTER);\n");
 246         indent--;
 247     }
 248   }
 249 }
 250
 251 static void free_variable( const var_t *arg )
 252 {
 253   unsigned int type_offset = arg->type->typestring_offset;
 254   expr_t *iid;
 255   type_t *type = arg->type;
 256   expr_t *size = get_size_is_expr(type, arg->name);
 257
 258   if (size)
 259   {
 260     print_proxy( "_StubMsg.MaxCount = " );
 261     write_expr(proxy, size, 0, 1, NULL, NULL);
 262     fprintf(proxy, ";\n\n");
 263     print_proxy( "NdrClearOutParameters( &_StubMsg, ");
 264     fprintf(proxy, "&__MIDL_TypeFormatString.Format[%u], ", type_offset );
 265     fprintf(proxy, "(void*)%s );\n", arg->name );
 266     return;
 267   }
 268
 269   switch( type->type )
 270   {
 271   case RPC_FC_BYTE:
 272   case RPC_FC_CHAR:
 273   case RPC_FC_WCHAR:
 274   case RPC_FC_SHORT:
 275   case RPC_FC_USHORT:
 276   case RPC_FC_ENUM16:
 277   case RPC_FC_LONG:
 278   case RPC_FC_ULONG:
 279   case RPC_FC_ENUM32:
 280   case RPC_FC_STRUCT:
 281     break;
 282
 283   case RPC_FC_FP:
 284   case RPC_FC_IP:
 285     iid = get_attrp( arg->attrs, ATTR_IIDIS );
 286     if( iid )
 287     {
 288       print_proxy( "_StubMsg.MaxCount = (unsigned long) " );
 289       write_expr(proxy, iid, 1, 1, NULL, NULL);
 290       print_proxy( ";\n\n" );
 291     }
 292     print_proxy( "NdrClearOutParameters( &_StubMsg, ");
 293     fprintf(proxy, "&__MIDL_TypeFormatString.Format[%u], ", type_offset );
 294     fprintf(proxy, "(void*)%s );\n", arg->name );
 295     break;
 296
 297   default:
 298     print_proxy("/* FIXME: %s code for %s type %d missing */\n", __FUNCTION__, arg->name, type->type );
 299   }
 300 }
 301
 302 static void proxy_free_variables( var_list_t *args )
 303 {
 304   const var_t *arg;
 305
 306   if (!args) return;
 307   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 308     if (is_attr(arg->attrs, ATTR_OUT))
 309     {
 310       free_variable( arg );
 311       fprintf(proxy, "\n");
 312     }
 313 }
 314
 315 static void gen_proxy(type_t *iface, const func_t *cur, int idx,
 316                       unsigned int proc_offset)
 317 {
 318   var_t *def = cur->def;
 319   int has_ret = !is_void(get_func_return_type(cur));
 320   int has_full_pointer = is_full_pointer_function(cur);
 321   const char *callconv = get_attrp(def->type->attrs, ATTR_CALLCONV);
 322   if (!callconv) callconv = "";
 323
 324   indent = 0;
 325   write_type_decl_left(proxy, get_func_return_type(cur));
 326   print_proxy( " %s %s_", callconv, iface->name);
 327   write_name(proxy, def);
 328   print_proxy( "_Proxy(\n");
 329   write_args(proxy, cur->args, iface->name, 1, TRUE);
 330   print_proxy( ")\n");
 331   print_proxy( "{\n");
 332   indent ++;
 333   /* local variables */
 334   if (has_ret) {
 335     print_proxy( "" );
 336     write_type_decl_left(proxy, get_func_return_type(cur));
 337     print_proxy( " _RetVal;\n");
 338   }
 339   print_proxy( "RPC_MESSAGE _RpcMessage;\n" );
 340   print_proxy( "MIDL_STUB_MESSAGE _StubMsg;\n" );
 341   if (has_ret) {
 342     if (decl_indirect(get_func_return_type(cur)))
 343       print_proxy("void *_p_%s = &%s;\n",
 344                  "_RetVal", "_RetVal");
 345   }
 346   print_proxy( "\n");
 347
 348   if (has_full_pointer)
 349     write_full_pointer_init(proxy, indent, cur, FALSE);
 350
 351   /* FIXME: trace */
 352   clear_output_vars( cur->args );
 353
 354   print_proxy( "RpcTryExcept\n" );
 355   print_proxy( "{\n" );
 356   indent++;
 357   print_proxy( "NdrProxyInitialize(This, &_RpcMessage, &_StubMsg, &Object_StubDesc, %d);\n", idx);
 358   proxy_check_pointers( cur->args );
 359
 360   print_proxy( "RpcTryFinally\n" );
 361   print_proxy( "{\n" );
 362   indent++;
 363
 364   write_remoting_arguments(proxy, indent, cur, PASS_IN, PHASE_BUFFERSIZE);
 365
 366   print_proxy( "NdrProxyGetBuffer(This, &_StubMsg);\n" );
 367
 368   write_remoting_arguments(proxy, indent, cur, PASS_IN, PHASE_MARSHAL);
 369
 370   print_proxy( "NdrProxySendReceive(This, &_StubMsg);\n" );
 371   fprintf(proxy, "\n");
 372   print_proxy( "_StubMsg.BufferStart = _RpcMessage.Buffer;\n" );
 373   print_proxy( "_StubMsg.BufferEnd   = _StubMsg.BufferStart + _RpcMessage.BufferLength;\n\n" );
 374
 375   print_proxy("if ((_RpcMessage.DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 376   indent++;
 377   print_proxy("NdrConvert( &_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 378   indent--;
 379   fprintf(proxy, "\n");
 380
 381   write_remoting_arguments(proxy, indent, cur, PASS_OUT, PHASE_UNMARSHAL);
 382
 383   if (has_ret)
 384   {
 385       if (decl_indirect(get_func_return_type(cur)))
 386           print_proxy("MIDL_memset(&%s, 0, sizeof(%s));\n", "_RetVal", "_RetVal");
 387       else if (is_ptr(get_func_return_type(cur)) || is_array(get_func_return_type(cur)))
 388           print_proxy("%s = 0;\n", "_RetVal");
 389       write_remoting_arguments(proxy, indent, cur, PASS_RETURN, PHASE_UNMARSHAL);
 390   }
 391
 392   indent--;
 393   print_proxy( "}\n");
 394   print_proxy( "RpcFinally\n" );
 395   print_proxy( "{\n" );
 396   indent++;
 397   if (has_full_pointer)
 398     write_full_pointer_free(proxy, indent, cur);
 399   print_proxy( "NdrProxyFreeBuffer(This, &_StubMsg);\n" );
 400   indent--;
 401   print_proxy( "}\n");
 402   print_proxy( "RpcEndFinally\n" );
 403   indent--;
 404   print_proxy( "}\n" );
 405   print_proxy( "RpcExcept(_StubMsg.dwStubPhase != PROXY_SENDRECEIVE)\n" );
 406   print_proxy( "{\n" );
 407   if (has_ret) {
 408     indent++;
 409     proxy_free_variables( cur->args );
 410     print_proxy( "_RetVal = NdrProxyErrorHandler(RpcExceptionCode());\n" );
 411     indent--;
 412   }
 413   print_proxy( "}\n" );
 414   print_proxy( "RpcEndExcept\n" );
 415
 416   if (has_ret) {
 417     print_proxy( "return _RetVal;\n" );
 418   }
 419   indent--;
 420   print_proxy( "}\n");
 421   print_proxy( "\n");
 422 }
 423
 424 static void gen_stub(type_t *iface, const func_t *cur, const char *cas,
 425                      unsigned int proc_offset)
 426 {
 427   var_t *def = cur->def;
 428   const var_t *arg;
 429   int has_ret = !is_void(get_func_return_type(cur));
 430   int has_full_pointer = is_full_pointer_function(cur);
 431
 432   indent = 0;
 433   print_proxy( "void __RPC_STUB %s_", iface->name);
 434   write_name(proxy, def);
 435   print_proxy( "_Stub(\n");
 436   indent++;
 437   print_proxy( "IRpcStubBuffer* This,\n");
 438   print_proxy( "IRpcChannelBuffer *_pRpcChannelBuffer,\n");
 439   print_proxy( "PRPC_MESSAGE _pRpcMessage,\n");
 440   print_proxy( "DWORD* _pdwStubPhase)\n");
 441   indent--;
 442   print_proxy( "{\n");
 443   indent++;
 444   print_proxy("%s * _This = (%s*)((CStdStubBuffer*)This)->pvServerObject;\n", iface->name, iface->name);
 445   print_proxy("MIDL_STUB_MESSAGE _StubMsg;\n");
 446   declare_stub_args( proxy, indent, cur );
 447   fprintf(proxy, "\n");
 448
 449   /* FIXME: trace */
 450
 451   print_proxy("NdrStubInitialize(_pRpcMessage, &_StubMsg, &Object_StubDesc, _pRpcChannelBuffer);\n");
 452   fprintf(proxy, "\n");
 453
 454   write_parameters_init(proxy, indent, cur);
 455
 456   print_proxy("RpcTryFinally\n");
 457   print_proxy("{\n");
 458   indent++;
 459   if (has_full_pointer)
 460     write_full_pointer_init(proxy, indent, cur, TRUE);
 461   print_proxy("if ((_pRpcMessage->DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 462   indent++;
 463   print_proxy("NdrConvert( &_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 464   indent--;
 465   fprintf(proxy, "\n");
 466
 467   write_remoting_arguments(proxy, indent, cur, PASS_IN, PHASE_UNMARSHAL);
 468   fprintf(proxy, "\n");
 469
 470   assign_stub_out_args( proxy, indent, cur );
 471
 472   print_proxy("*_pdwStubPhase = STUB_CALL_SERVER;\n");
 473   fprintf(proxy, "\n");
 474   print_proxy("");
 475   if (has_ret) fprintf(proxy, "_RetVal = ");
 476   if (cas) fprintf(proxy, "%s_%s_Stub", iface->name, cas);
 477   else
 478   {
 479       fprintf(proxy, "_This->lpVtbl->");
 480       write_name(proxy, def);
 481   }
 482   fprintf(proxy, "(_This");
 483
 484   if (cur->args)
 485   {
 486       LIST_FOR_EACH_ENTRY( arg, cur->args, const var_t, entry )
 487       {
 488           fprintf(proxy, ", ");
 489           if (arg->type->declarray)
 490               fprintf(proxy, "*");
 491           write_name(proxy, arg);
 492       }
 493   }
 494   fprintf(proxy, ");\n");
 495   fprintf(proxy, "\n");
 496   print_proxy("*_pdwStubPhase = STUB_MARSHAL;\n");
 497   fprintf(proxy, "\n");
 498
 499   write_remoting_arguments(proxy, indent, cur, PASS_OUT, PHASE_BUFFERSIZE);
 500
 501   if (!is_void(get_func_return_type(cur)))
 502     write_remoting_arguments(proxy, indent, cur, PASS_RETURN, PHASE_BUFFERSIZE);
 503
 504   print_proxy("NdrStubGetBuffer(This, _pRpcChannelBuffer, &_StubMsg);\n");
 505
 506   write_remoting_arguments(proxy, indent, cur, PASS_OUT, PHASE_MARSHAL);
 507   fprintf(proxy, "\n");
 508
 509   /* marshall the return value */
 510   if (!is_void(get_func_return_type(cur)))
 511     write_remoting_arguments(proxy, indent, cur, PASS_RETURN, PHASE_MARSHAL);
 512
 513   indent--;
 514   print_proxy("}\n");
 515   print_proxy("RpcFinally\n");
 516   print_proxy("{\n");
 517
 518   write_remoting_arguments(proxy, indent+1, cur, PASS_OUT, PHASE_FREE);
 519
 520   if (has_full_pointer)
 521     write_full_pointer_free(proxy, indent, cur);
 522
 523   print_proxy("}\n");
 524   print_proxy("RpcEndFinally\n");
 525
 526   print_proxy("_pRpcMessage->BufferLength = _StubMsg.Buffer - (unsigned char *)_pRpcMessage->Buffer;\n");
 527   indent--;
 528
 529   print_proxy("}\n");
 530   print_proxy("\n");
 531 }
 532
 533 static int write_proxy_methods(type_t *iface)
 534 {
 535   const func_t *cur;
 536   int i = 0;
 537
 538   if (iface->ref) i = write_proxy_methods(iface->ref);
 539   if (iface->funcs) LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry ) {
 540     var_t *def = cur->def;
 541     if (!is_callas(def->attrs)) {
 542       if (i) fprintf(proxy, ",\n");
 543       print_proxy( "%s_", iface->name);
 544       write_name(proxy, def);
 545       fprintf(proxy, "_Proxy");
 546       i++;
 547     }
 548   }
 549   return i;
 550 }
 551
 552 static int write_stub_methods(type_t *iface)
 553 {
 554   const func_t *cur;
 555   int i = 0;
 556
 557   if (iface->ref) i = write_stub_methods(iface->ref);
 558   else return i; /* skip IUnknown */
 559
 560   if (iface->funcs) LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry ) {
 561     var_t *def = cur->def;
 562     if (!is_local(def->attrs)) {
 563       if (i) fprintf(proxy,",\n");
 564       print_proxy( "%s_", iface->name);
 565       write_name(proxy, def);
 566       fprintf(proxy, "_Stub");
 567       i++;
 568     }
 569   }
 570   return i;
 571 }
 572
 573 static void write_proxy(type_t *iface, unsigned int *proc_offset)
 574 {
 575   int midx = -1, stubs;
 576   const func_t *cur;
 577
 578   if (!iface->funcs) return;
 579
 580   /* FIXME: check for [oleautomation], shouldn't generate proxies/stubs if specified */
 581
 582   fprintf(proxy, "/*****************************************************************************\n");
 583   fprintf(proxy, " * %s interface\n", iface->name);
 584   fprintf(proxy, " */\n");
 585   LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry )
 586   {
 587     const var_t *def = cur->def;
 588     if (!is_local(def->attrs)) {
 589       const var_t *cas = is_callas(def->attrs);
 590       const char *cname = cas ? cas->name : NULL;
 591       int idx = cur->idx;
 592       if (cname) {
 593           const func_t *m;
 594           LIST_FOR_EACH_ENTRY( m, iface->funcs, const func_t, entry )
 595               if (!strcmp(m->def->name, cname))
 596               {
 597                   idx = m->idx;
 598                   break;
 599               }
 600       }
 601       gen_proxy(iface, cur, idx, *proc_offset);
 602       gen_stub(iface, cur, cname, *proc_offset);
 603       *proc_offset += get_size_procformatstring_func( cur );
 604       if (midx == -1) midx = idx;
 605       else if (midx != idx) error("method index mismatch in write_proxy\n");
 606       midx++;
 607     }
 608   }
 609
 610   /* proxy vtable */
 611   print_proxy( "static const CINTERFACE_PROXY_VTABLE(%d) _%sProxyVtbl =\n", midx, iface->name);
 612   print_proxy( "{\n");
 613   indent++;
 614   print_proxy( "{\n", iface->name);
 615   indent++;
 616   print_proxy( "&IID_%s,\n", iface->name);
 617   indent--;
 618   print_proxy( "},\n");
 619   print_proxy( "{\n");
 620   indent++;
 621   write_proxy_methods(iface);
 622   fprintf(proxy, "\n");
 623   indent--;
 624   print_proxy( "}\n");
 625   indent--;
 626   print_proxy( "};\n");
 627   fprintf(proxy, "\n\n");
 628
 629   /* stub vtable */
 630   print_proxy( "static const PRPC_STUB_FUNCTION %s_table[] =\n", iface->name);
 631   print_proxy( "{\n");
 632   indent++;
 633   stubs = write_stub_methods(iface);
 634   fprintf(proxy, "\n");
 635   indent--;
 636   fprintf(proxy, "};\n");
 637   print_proxy( "\n");
 638   print_proxy( "static const CInterfaceStubVtbl _%sStubVtbl =\n", iface->name);
 639   print_proxy( "{\n");
 640   indent++;
 641   print_proxy( "{\n");
 642   indent++;
 643   print_proxy( "&IID_%s,\n", iface->name);
 644   print_proxy( "0,\n");
 645   print_proxy( "%d,\n", stubs+3);
 646   print_proxy( "&%s_table[-3],\n", iface->name);
 647   indent--;
 648   print_proxy( "},\n", iface->name);
 649   print_proxy( "{\n");
 650   indent++;
 651   print_proxy( "CStdStubBuffer_METHODS\n");
 652   indent--;
 653   print_proxy( "}\n");
 654   indent--;
 655   print_proxy( "};\n");
 656   print_proxy( "\n");
 657 }
 658
 659 static int does_any_iface(const statement_list_t *stmts, type_pred_t pred)
 660 {
 661   const statement_t *stmt;
 662
 663   if (stmts)
 664     LIST_FOR_EACH_ENTRY(stmt, stmts, const statement_t, entry)
 665     {
 666       if (stmt->type == STMT_LIBRARY)
 667       {
 668           if (does_any_iface(stmt->u.lib->stmts, pred))
 669               return TRUE;
 670       }
 671       else if (stmt->type == STMT_TYPE && stmt->u.type->type == RPC_FC_IP)
 672       {
 673         if (pred(stmt->u.type))
 674           return TRUE;
 675       }
 676     }
 677
 678   return FALSE;
 679 }
 680
 681 int need_proxy(const type_t *iface)
 682 {
 683   return is_object(iface->attrs) && !is_local(iface->attrs);
 684 }
 685
 686 int need_stub(const type_t *iface)
 687 {
 688   return !is_object(iface->attrs) && !is_local(iface->attrs);
 689 }
 690
 691 int need_proxy_file(const statement_list_t *stmts)
 692 {
 693   return does_any_iface(stmts, need_proxy);
 694 }
 695
 696 int need_stub_files(const statement_list_t *stmts)
 697 {
 698   return does_any_iface(stmts, need_stub);
 699 }
 700
 701 static void write_proxy_stmts(const statement_list_t *stmts, unsigned int *proc_offset)
 702 {
 703   const statement_t *stmt;
 704   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 705   {
 706     if (stmt->type == STMT_LIBRARY)
 707       write_proxy_stmts(stmt->u.lib->stmts, proc_offset);
 708     else if (stmt->type == STMT_TYPE && stmt->u.type->type == RPC_FC_IP)
 709     {
 710       if (need_proxy(stmt->u.type))
 711         write_proxy(stmt->u.type, proc_offset);
 712     }
 713   }
 714 }
 715
 716 static void write_proxy_iface_name_format(const statement_list_t *stmts, const char *format)
 717 {
 718   const statement_t *stmt;
 719   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 720   {
 721     if (stmt->type == STMT_LIBRARY)
 722       write_proxy_iface_name_format(stmt->u.lib->stmts, format);
 723     else if (stmt->type == STMT_TYPE && stmt->u.type->type == RPC_FC_IP)
 724     {
 725       type_t *iface = stmt->u.type;
 726       if (iface->ref && iface->funcs && need_proxy(iface))
 727         fprintf(proxy, format, iface->name);
 728     }
 729   }
 730 }
 731
 732 static void write_iid_lookup(const statement_list_t *stmts, const char *file_id, int *c)
 733 {
 734   const statement_t *stmt;
 735   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 736   {
 737     if (stmt->type == STMT_LIBRARY)
 738       write_iid_lookup(stmt->u.lib->stmts, file_id, c);
 739     else if (stmt->type == STMT_TYPE && stmt->u.type->type == RPC_FC_IP)
 740     {
 741       type_t *iface = stmt->u.type;
 742       if(iface->ref && iface->funcs && need_proxy(iface))
 743       {
 744         fprintf(proxy, "    if (!_%s_CHECK_IID(%d))\n", file_id, *c);
 745         fprintf(proxy, "    {\n");
 746         fprintf(proxy, "        *pIndex = %d;\n", *c);
 747         fprintf(proxy, "        return 1;\n");
 748         fprintf(proxy, "    }\n");
 749         (*c)++;
 750       }
 751     }
 752   }
 753 }
 754
 755 void write_proxies(const statement_list_t *stmts)
 756 {
 757   int expr_eval_routines;
 758   char *file_id = proxy_token;
 759   int c;
 760   unsigned int proc_offset = 0;
 761
 762   if (!do_proxies) return;
 763   if (do_everything && !need_proxy_file(stmts)) return;
 764
 765   init_proxy(stmts);
 766   if(!proxy) return;
 767
 768   write_proxy_stmts(stmts, &proc_offset);
 769
 770   expr_eval_routines = write_expr_eval_routines(proxy, proxy_token);
 771   if (expr_eval_routines)
 772       write_expr_eval_routine_list(proxy, proxy_token);
 773   write_user_quad_list(proxy);
 774   write_stubdesc(expr_eval_routines);
 775
 776   print_proxy( "#if !defined(__RPC_WIN32__)\n");
 777   print_proxy( "#error Currently only Wine and WIN32 are supported.\n");
 778   print_proxy( "#endif\n");
 779   print_proxy( "\n");
 780   write_procformatstring(proxy, stmts, need_proxy);
 781   write_typeformatstring(proxy, stmts, need_proxy);
 782
 783   fprintf(proxy, "static const CInterfaceProxyVtbl* const _%s_ProxyVtblList[] =\n", file_id);
 784   fprintf(proxy, "{\n");
 785   write_proxy_iface_name_format(stmts, "    (const CInterfaceProxyVtbl*)&_%sProxyVtbl,\n");
 786   fprintf(proxy, "    0\n");
 787   fprintf(proxy, "};\n");
 788   fprintf(proxy, "\n");
 789
 790   fprintf(proxy, "static const CInterfaceStubVtbl* const _%s_StubVtblList[] =\n", file_id);
 791   fprintf(proxy, "{\n");
 792   write_proxy_iface_name_format(stmts, "    (const CInterfaceStubVtbl*)&_%sStubVtbl,\n");
 793   fprintf(proxy, "    0\n");
 794   fprintf(proxy, "};\n");
 795   fprintf(proxy, "\n");
 796
 797   fprintf(proxy, "static PCInterfaceName const _%s_InterfaceNamesList[] =\n", file_id);
 798   fprintf(proxy, "{\n");
 799   write_proxy_iface_name_format(stmts, "    \"%s\",\n");
 800   fprintf(proxy, "    0\n");
 801   fprintf(proxy, "};\n");
 802   fprintf(proxy, "\n");
 803
 804   fprintf(proxy, "#define _%s_CHECK_IID(n) IID_GENERIC_CHECK_IID(_%s, pIID, n)\n", file_id, file_id);
 805   fprintf(proxy, "\n");
 806   fprintf(proxy, "int __stdcall _%s_IID_Lookup(const IID* pIID, int* pIndex)\n", file_id);
 807   fprintf(proxy, "{\n");
 808   c = 0;
 809   write_iid_lookup(stmts, file_id, &c);
 810   fprintf(proxy, "    return 0;\n");
 811   fprintf(proxy, "}\n");
 812   fprintf(proxy, "\n");
 813
 814   fprintf(proxy, "const ExtendedProxyFileInfo %s_ProxyFileInfo =\n", file_id);
 815   fprintf(proxy, "{\n");
 816   fprintf(proxy, "    (const PCInterfaceProxyVtblList*)&_%s_ProxyVtblList,\n", file_id);
 817   fprintf(proxy, "    (const PCInterfaceStubVtblList*)&_%s_StubVtblList,\n", file_id);
 818   fprintf(proxy, "    _%s_InterfaceNamesList,\n", file_id);
 819   fprintf(proxy, "    0,\n");
 820   fprintf(proxy, "    &_%s_IID_Lookup,\n", file_id);
 821   fprintf(proxy, "    %d,\n", c);
 822   fprintf(proxy, "    1,\n");
 823   fprintf(proxy, "    0,\n");
 824   fprintf(proxy, "    0,\n");
 825   fprintf(proxy, "    0,\n");
 826   fprintf(proxy, "    0\n");
 827   fprintf(proxy, "};\n");
 828
 829   fclose(proxy);
 830 }