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   if (! attrs && type)
 203   {
 204     attrs = type->attrs;
 205     type = type->ref;
 206   }
 207
 208   while (attrs)
 209   {
 210     int t = get_attrv(attrs, ATTR_POINTERTYPE);
 211
 212     if (t == RPC_FC_FP || t == RPC_FC_OP || t == RPC_FC_UP)
 213       return 0;
 214
 215     if (t == RPC_FC_RP)
 216       return 1;
 217
 218     if (type)
 219     {
 220       attrs = type->attrs;
 221       type = type->ref;
 222     }
 223     else
 224       attrs = NULL;
 225   }
 226
 227   return 1;                             /* Default is RPC_FC_RP.  */
 228 }
 229
 230 static void proxy_check_pointers( const var_list_t *args )
 231 {
 232   const var_t *arg;
 233
 234   if (!args) return;
 235   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 236   {
 237     if (is_var_ptr(arg) && cant_be_null(arg)) {
 238         print_proxy( "if(!%s)\n", arg->name );
 239         indent++;
 240         print_proxy( "RpcRaiseException(RPC_X_NULL_REF_POINTER);\n");
 241         indent--;
 242     }
 243   }
 244 }
 245
 246 static void free_variable( const var_t *arg )
 247 {
 248   unsigned int type_offset = arg->type->typestring_offset;
 249   expr_t *iid;
 250   type_t *type = arg->type;
 251   expr_t *size = get_size_is_expr(type, arg->name);
 252
 253   if (size)
 254   {
 255     print_proxy( "_StubMsg.MaxCount = " );
 256     write_expr(proxy, size, 0, 1, NULL, NULL);
 257     fprintf(proxy, ";\n\n");
 258     print_proxy( "NdrClearOutParameters( &_StubMsg, ");
 259     fprintf(proxy, "&__MIDL_TypeFormatString.Format[%u], ", type_offset );
 260     fprintf(proxy, "(void*)%s );\n", arg->name );
 261     return;
 262   }
 263
 264   switch( type->type )
 265   {
 266   case RPC_FC_BYTE:
 267   case RPC_FC_CHAR:
 268   case RPC_FC_WCHAR:
 269   case RPC_FC_SHORT:
 270   case RPC_FC_USHORT:
 271   case RPC_FC_ENUM16:
 272   case RPC_FC_LONG:
 273   case RPC_FC_ULONG:
 274   case RPC_FC_ENUM32:
 275   case RPC_FC_STRUCT:
 276     break;
 277
 278   case RPC_FC_FP:
 279   case RPC_FC_IP:
 280     iid = get_attrp( arg->attrs, ATTR_IIDIS );
 281     if( iid )
 282     {
 283       print_proxy( "_StubMsg.MaxCount = (unsigned long) " );
 284       write_expr(proxy, iid, 1, 1, NULL, NULL);
 285       print_proxy( ";\n\n" );
 286     }
 287     print_proxy( "NdrClearOutParameters( &_StubMsg, ");
 288     fprintf(proxy, "&__MIDL_TypeFormatString.Format[%u], ", type_offset );
 289     fprintf(proxy, "(void*)%s );\n", arg->name );
 290     break;
 291
 292   default:
 293     print_proxy("/* FIXME: %s code for %s type %d missing */\n", __FUNCTION__, arg->name, type->type );
 294   }
 295 }
 296
 297 static void proxy_free_variables( var_list_t *args )
 298 {
 299   const var_t *arg;
 300
 301   if (!args) return;
 302   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 303     if (is_attr(arg->attrs, ATTR_OUT))
 304     {
 305       free_variable( arg );
 306       fprintf(proxy, "\n");
 307     }
 308 }
 309
 310 static void gen_proxy(type_t *iface, const func_t *cur, int idx,
 311                       unsigned int proc_offset)
 312 {
 313   var_t *def = cur->def;
 314   int has_ret = !is_void(get_func_return_type(cur));
 315   int has_full_pointer = is_full_pointer_function(cur);
 316   const char *callconv = get_attrp(def->type->attrs, ATTR_CALLCONV);
 317   if (!callconv) callconv = "";
 318
 319   indent = 0;
 320   write_type_decl_left(proxy, get_func_return_type(cur));
 321   print_proxy( " %s %s_", callconv, iface->name);
 322   write_name(proxy, def);
 323   print_proxy( "_Proxy(\n");
 324   write_args(proxy, cur->args, iface->name, 1, TRUE);
 325   print_proxy( ")\n");
 326   print_proxy( "{\n");
 327   indent ++;
 328   /* local variables */
 329   if (has_ret) {
 330     print_proxy( "" );
 331     write_type_decl_left(proxy, get_func_return_type(cur));
 332     print_proxy( " _RetVal;\n");
 333   }
 334   print_proxy( "RPC_MESSAGE _RpcMessage;\n" );
 335   print_proxy( "MIDL_STUB_MESSAGE _StubMsg;\n" );
 336   if (has_ret) {
 337     if (decl_indirect(get_func_return_type(cur)))
 338       print_proxy("void *_p_%s = &%s;\n",
 339                  "_RetVal", "_RetVal");
 340   }
 341   print_proxy( "\n");
 342
 343   if (has_full_pointer)
 344     write_full_pointer_init(proxy, indent, cur, FALSE);
 345
 346   /* FIXME: trace */
 347   clear_output_vars( cur->args );
 348
 349   print_proxy( "RpcTryExcept\n" );
 350   print_proxy( "{\n" );
 351   indent++;
 352   print_proxy( "NdrProxyInitialize(This, &_RpcMessage, &_StubMsg, &Object_StubDesc, %d);\n", idx);
 353   proxy_check_pointers( cur->args );
 354
 355   print_proxy( "RpcTryFinally\n" );
 356   print_proxy( "{\n" );
 357   indent++;
 358
 359   write_remoting_arguments(proxy, indent, cur, PASS_IN, PHASE_BUFFERSIZE);
 360
 361   print_proxy( "NdrProxyGetBuffer(This, &_StubMsg);\n" );
 362
 363   write_remoting_arguments(proxy, indent, cur, PASS_IN, PHASE_MARSHAL);
 364
 365   print_proxy( "NdrProxySendReceive(This, &_StubMsg);\n" );
 366   fprintf(proxy, "\n");
 367   print_proxy( "_StubMsg.BufferStart = _RpcMessage.Buffer;\n" );
 368   print_proxy( "_StubMsg.BufferEnd   = _StubMsg.BufferStart + _RpcMessage.BufferLength;\n\n" );
 369
 370   print_proxy("if ((_RpcMessage.DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 371   indent++;
 372   print_proxy("NdrConvert( &_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 373   indent--;
 374   fprintf(proxy, "\n");
 375
 376   write_remoting_arguments(proxy, indent, cur, PASS_OUT, PHASE_UNMARSHAL);
 377
 378   if (has_ret)
 379   {
 380       if (decl_indirect(get_func_return_type(cur)))
 381           print_proxy("MIDL_memset(&%s, 0, sizeof(%s));\n", "_RetVal", "_RetVal");
 382       else if (is_ptr(get_func_return_type(cur)) || is_array(get_func_return_type(cur)))
 383           print_proxy("%s = 0;\n", "_RetVal");
 384       write_remoting_arguments(proxy, indent, cur, PASS_RETURN, PHASE_UNMARSHAL);
 385   }
 386
 387   indent--;
 388   print_proxy( "}\n");
 389   print_proxy( "RpcFinally\n" );
 390   print_proxy( "{\n" );
 391   indent++;
 392   if (has_full_pointer)
 393     write_full_pointer_free(proxy, indent, cur);
 394   print_proxy( "NdrProxyFreeBuffer(This, &_StubMsg);\n" );
 395   indent--;
 396   print_proxy( "}\n");
 397   print_proxy( "RpcEndFinally\n" );
 398   indent--;
 399   print_proxy( "}\n" );
 400   print_proxy( "RpcExcept(_StubMsg.dwStubPhase != PROXY_SENDRECEIVE)\n" );
 401   print_proxy( "{\n" );
 402   if (has_ret) {
 403     indent++;
 404     proxy_free_variables( cur->args );
 405     print_proxy( "_RetVal = NdrProxyErrorHandler(RpcExceptionCode());\n" );
 406     indent--;
 407   }
 408   print_proxy( "}\n" );
 409   print_proxy( "RpcEndExcept\n" );
 410
 411   if (has_ret) {
 412     print_proxy( "return _RetVal;\n" );
 413   }
 414   indent--;
 415   print_proxy( "}\n");
 416   print_proxy( "\n");
 417 }
 418
 419 static void gen_stub(type_t *iface, const func_t *cur, const char *cas,
 420                      unsigned int proc_offset)
 421 {
 422   var_t *def = cur->def;
 423   const var_t *arg;
 424   int has_ret = !is_void(get_func_return_type(cur));
 425   int has_full_pointer = is_full_pointer_function(cur);
 426
 427   indent = 0;
 428   print_proxy( "void __RPC_STUB %s_", iface->name);
 429   write_name(proxy, def);
 430   print_proxy( "_Stub(\n");
 431   indent++;
 432   print_proxy( "IRpcStubBuffer* This,\n");
 433   print_proxy( "IRpcChannelBuffer *_pRpcChannelBuffer,\n");
 434   print_proxy( "PRPC_MESSAGE _pRpcMessage,\n");
 435   print_proxy( "DWORD* _pdwStubPhase)\n");
 436   indent--;
 437   print_proxy( "{\n");
 438   indent++;
 439   print_proxy("%s * _This = (%s*)((CStdStubBuffer*)This)->pvServerObject;\n", iface->name, iface->name);
 440   print_proxy("MIDL_STUB_MESSAGE _StubMsg;\n");
 441   declare_stub_args( proxy, indent, cur );
 442   fprintf(proxy, "\n");
 443
 444   /* FIXME: trace */
 445
 446   print_proxy("NdrStubInitialize(_pRpcMessage, &_StubMsg, &Object_StubDesc, _pRpcChannelBuffer);\n");
 447   fprintf(proxy, "\n");
 448
 449   write_parameters_init(proxy, indent, cur);
 450
 451   print_proxy("RpcTryFinally\n");
 452   print_proxy("{\n");
 453   indent++;
 454   if (has_full_pointer)
 455     write_full_pointer_init(proxy, indent, cur, TRUE);
 456   print_proxy("if ((_pRpcMessage->DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 457   indent++;
 458   print_proxy("NdrConvert( &_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 459   indent--;
 460   fprintf(proxy, "\n");
 461
 462   write_remoting_arguments(proxy, indent, cur, PASS_IN, PHASE_UNMARSHAL);
 463   fprintf(proxy, "\n");
 464
 465   assign_stub_out_args( proxy, indent, cur );
 466
 467   print_proxy("*_pdwStubPhase = STUB_CALL_SERVER;\n");
 468   fprintf(proxy, "\n");
 469   print_proxy("");
 470   if (has_ret) fprintf(proxy, "_RetVal = ");
 471   if (cas) fprintf(proxy, "%s_%s_Stub", iface->name, cas);
 472   else
 473   {
 474       fprintf(proxy, "_This->lpVtbl->");
 475       write_name(proxy, def);
 476   }
 477   fprintf(proxy, "(_This");
 478
 479   if (cur->args)
 480   {
 481       LIST_FOR_EACH_ENTRY( arg, cur->args, const var_t, entry )
 482       {
 483           fprintf(proxy, ", ");
 484           if (arg->type->declarray)
 485               fprintf(proxy, "*");
 486           write_name(proxy, arg);
 487       }
 488   }
 489   fprintf(proxy, ");\n");
 490   fprintf(proxy, "\n");
 491   print_proxy("*_pdwStubPhase = STUB_MARSHAL;\n");
 492   fprintf(proxy, "\n");
 493
 494   write_remoting_arguments(proxy, indent, cur, PASS_OUT, PHASE_BUFFERSIZE);
 495
 496   if (!is_void(get_func_return_type(cur)))
 497     write_remoting_arguments(proxy, indent, cur, PASS_RETURN, PHASE_BUFFERSIZE);
 498
 499   print_proxy("NdrStubGetBuffer(This, _pRpcChannelBuffer, &_StubMsg);\n");
 500
 501   write_remoting_arguments(proxy, indent, cur, PASS_OUT, PHASE_MARSHAL);
 502   fprintf(proxy, "\n");
 503
 504   /* marshall the return value */
 505   if (!is_void(get_func_return_type(cur)))
 506     write_remoting_arguments(proxy, indent, cur, PASS_RETURN, PHASE_MARSHAL);
 507
 508   indent--;
 509   print_proxy("}\n");
 510   print_proxy("RpcFinally\n");
 511   print_proxy("{\n");
 512
 513   write_remoting_arguments(proxy, indent+1, cur, PASS_OUT, PHASE_FREE);
 514
 515   if (has_full_pointer)
 516     write_full_pointer_free(proxy, indent, cur);
 517
 518   print_proxy("}\n");
 519   print_proxy("RpcEndFinally\n");
 520
 521   print_proxy("_pRpcMessage->BufferLength = _StubMsg.Buffer - (unsigned char *)_pRpcMessage->Buffer;\n");
 522   indent--;
 523
 524   print_proxy("}\n");
 525   print_proxy("\n");
 526 }
 527
 528 static int write_proxy_methods(type_t *iface)
 529 {
 530   const func_t *cur;
 531   int i = 0;
 532
 533   if (iface->ref) i = write_proxy_methods(iface->ref);
 534   if (iface->funcs) LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry ) {
 535     var_t *def = cur->def;
 536     if (!is_callas(def->attrs)) {
 537       if (i) fprintf(proxy, ",\n");
 538       print_proxy( "%s_", iface->name);
 539       write_name(proxy, def);
 540       fprintf(proxy, "_Proxy");
 541       i++;
 542     }
 543   }
 544   return i;
 545 }
 546
 547 static int write_stub_methods(type_t *iface)
 548 {
 549   const func_t *cur;
 550   int i = 0;
 551
 552   if (iface->ref) i = write_stub_methods(iface->ref);
 553   else return i; /* skip IUnknown */
 554
 555   if (iface->funcs) LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry ) {
 556     var_t *def = cur->def;
 557     if (!is_local(def->attrs)) {
 558       if (i) fprintf(proxy,",\n");
 559       print_proxy( "%s_", iface->name);
 560       write_name(proxy, def);
 561       fprintf(proxy, "_Stub");
 562       i++;
 563     }
 564   }
 565   return i;
 566 }
 567
 568 static void write_proxy(type_t *iface, unsigned int *proc_offset)
 569 {
 570   int midx = -1, stubs;
 571   const func_t *cur;
 572
 573   if (!iface->funcs) return;
 574
 575   /* FIXME: check for [oleautomation], shouldn't generate proxies/stubs if specified */
 576
 577   fprintf(proxy, "/*****************************************************************************\n");
 578   fprintf(proxy, " * %s interface\n", iface->name);
 579   fprintf(proxy, " */\n");
 580   LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry )
 581   {
 582     const var_t *def = cur->def;
 583     if (!is_local(def->attrs)) {
 584       const var_t *cas = is_callas(def->attrs);
 585       const char *cname = cas ? cas->name : NULL;
 586       int idx = cur->idx;
 587       if (cname) {
 588           const func_t *m;
 589           LIST_FOR_EACH_ENTRY( m, iface->funcs, const func_t, entry )
 590               if (!strcmp(m->def->name, cname))
 591               {
 592                   idx = m->idx;
 593                   break;
 594               }
 595       }
 596       gen_proxy(iface, cur, idx, *proc_offset);
 597       gen_stub(iface, cur, cname, *proc_offset);
 598       *proc_offset += get_size_procformatstring_func( cur );
 599       if (midx == -1) midx = idx;
 600       else if (midx != idx) error("method index mismatch in write_proxy\n");
 601       midx++;
 602     }
 603   }
 604
 605   /* proxy vtable */
 606   print_proxy( "static const CINTERFACE_PROXY_VTABLE(%d) _%sProxyVtbl =\n", midx, iface->name);
 607   print_proxy( "{\n");
 608   indent++;
 609   print_proxy( "{\n", iface->name);
 610   indent++;
 611   print_proxy( "&IID_%s,\n", iface->name);
 612   indent--;
 613   print_proxy( "},\n");
 614   print_proxy( "{\n");
 615   indent++;
 616   write_proxy_methods(iface);
 617   fprintf(proxy, "\n");
 618   indent--;
 619   print_proxy( "}\n");
 620   indent--;
 621   print_proxy( "};\n");
 622   fprintf(proxy, "\n\n");
 623
 624   /* stub vtable */
 625   print_proxy( "static const PRPC_STUB_FUNCTION %s_table[] =\n", iface->name);
 626   print_proxy( "{\n");
 627   indent++;
 628   stubs = write_stub_methods(iface);
 629   fprintf(proxy, "\n");
 630   indent--;
 631   fprintf(proxy, "};\n");
 632   print_proxy( "\n");
 633   print_proxy( "static const CInterfaceStubVtbl _%sStubVtbl =\n", iface->name);
 634   print_proxy( "{\n");
 635   indent++;
 636   print_proxy( "{\n");
 637   indent++;
 638   print_proxy( "&IID_%s,\n", iface->name);
 639   print_proxy( "0,\n");
 640   print_proxy( "%d,\n", stubs+3);
 641   print_proxy( "&%s_table[-3],\n", iface->name);
 642   indent--;
 643   print_proxy( "},\n", iface->name);
 644   print_proxy( "{\n");
 645   indent++;
 646   print_proxy( "CStdStubBuffer_METHODS\n");
 647   indent--;
 648   print_proxy( "}\n");
 649   indent--;
 650   print_proxy( "};\n");
 651   print_proxy( "\n");
 652 }
 653
 654 static int does_any_iface(const statement_list_t *stmts, type_pred_t pred)
 655 {
 656   const statement_t *stmt;
 657
 658   if (stmts)
 659     LIST_FOR_EACH_ENTRY(stmt, stmts, const statement_t, entry)
 660     {
 661       if (stmt->type == STMT_LIBRARY)
 662       {
 663           if (does_any_iface(stmt->u.lib->stmts, pred))
 664               return TRUE;
 665       }
 666       else if (stmt->type == STMT_TYPE && stmt->u.type->type == RPC_FC_IP)
 667       {
 668         if (pred(stmt->u.type))
 669           return TRUE;
 670       }
 671     }
 672
 673   return FALSE;
 674 }
 675
 676 int need_proxy(const type_t *iface)
 677 {
 678   return is_object(iface->attrs) && !is_local(iface->attrs);
 679 }
 680
 681 int need_stub(const type_t *iface)
 682 {
 683   return !is_object(iface->attrs) && !is_local(iface->attrs);
 684 }
 685
 686 int need_proxy_file(const statement_list_t *stmts)
 687 {
 688   return does_any_iface(stmts, need_proxy);
 689 }
 690
 691 int need_stub_files(const statement_list_t *stmts)
 692 {
 693   return does_any_iface(stmts, need_stub);
 694 }
 695
 696 static void write_proxy_stmts(const statement_list_t *stmts, unsigned int *proc_offset)
 697 {
 698   const statement_t *stmt;
 699   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 700   {
 701     if (stmt->type == STMT_LIBRARY)
 702       write_proxy_stmts(stmt->u.lib->stmts, proc_offset);
 703     else if (stmt->type == STMT_TYPE && stmt->u.type->type == RPC_FC_IP)
 704     {
 705       if (need_proxy(stmt->u.type))
 706         write_proxy(stmt->u.type, proc_offset);
 707     }
 708   }
 709 }
 710
 711 static void write_proxy_iface_name_format(const statement_list_t *stmts, const char *format)
 712 {
 713   const statement_t *stmt;
 714   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 715   {
 716     if (stmt->type == STMT_LIBRARY)
 717       write_proxy_iface_name_format(stmt->u.lib->stmts, format);
 718     else if (stmt->type == STMT_TYPE && stmt->u.type->type == RPC_FC_IP)
 719     {
 720       type_t *iface = stmt->u.type;
 721       if (iface->ref && iface->funcs && need_proxy(iface))
 722         fprintf(proxy, format, iface->name);
 723     }
 724   }
 725 }
 726
 727 static void write_iid_lookup(const statement_list_t *stmts, const char *file_id, int *c)
 728 {
 729   const statement_t *stmt;
 730   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 731   {
 732     if (stmt->type == STMT_LIBRARY)
 733       write_iid_lookup(stmt->u.lib->stmts, file_id, c);
 734     else if (stmt->type == STMT_TYPE && stmt->u.type->type == RPC_FC_IP)
 735     {
 736       type_t *iface = stmt->u.type;
 737       if(iface->ref && iface->funcs && need_proxy(iface))
 738       {
 739         fprintf(proxy, "    if (!_%s_CHECK_IID(%d))\n", file_id, *c);
 740         fprintf(proxy, "    {\n");
 741         fprintf(proxy, "        *pIndex = %d;\n", *c);
 742         fprintf(proxy, "        return 1;\n");
 743         fprintf(proxy, "    }\n");
 744         (*c)++;
 745       }
 746     }
 747   }
 748 }
 749
 750 void write_proxies(const statement_list_t *stmts)
 751 {
 752   int expr_eval_routines;
 753   char *file_id = proxy_token;
 754   int c;
 755   unsigned int proc_offset = 0;
 756
 757   if (!do_proxies) return;
 758   if (do_everything && !need_proxy_file(stmts)) return;
 759
 760   init_proxy(stmts);
 761   if(!proxy) return;
 762
 763   write_proxy_stmts(stmts, &proc_offset);
 764
 765   expr_eval_routines = write_expr_eval_routines(proxy, proxy_token);
 766   if (expr_eval_routines)
 767       write_expr_eval_routine_list(proxy, proxy_token);
 768   write_user_quad_list(proxy);
 769   write_stubdesc(expr_eval_routines);
 770
 771   print_proxy( "#if !defined(__RPC_WIN32__)\n");
 772   print_proxy( "#error Currently only Wine and WIN32 are supported.\n");
 773   print_proxy( "#endif\n");
 774   print_proxy( "\n");
 775   write_procformatstring(proxy, stmts, need_proxy);
 776   write_typeformatstring(proxy, stmts, need_proxy);
 777
 778   fprintf(proxy, "static const CInterfaceProxyVtbl* const _%s_ProxyVtblList[] =\n", file_id);
 779   fprintf(proxy, "{\n");
 780   write_proxy_iface_name_format(stmts, "    (const CInterfaceProxyVtbl*)&_%sProxyVtbl,\n");
 781   fprintf(proxy, "    0\n");
 782   fprintf(proxy, "};\n");
 783   fprintf(proxy, "\n");
 784
 785   fprintf(proxy, "static const CInterfaceStubVtbl* const _%s_StubVtblList[] =\n", file_id);
 786   fprintf(proxy, "{\n");
 787   write_proxy_iface_name_format(stmts, "    (const CInterfaceStubVtbl*)&_%sStubVtbl,\n");
 788   fprintf(proxy, "    0\n");
 789   fprintf(proxy, "};\n");
 790   fprintf(proxy, "\n");
 791
 792   fprintf(proxy, "static PCInterfaceName const _%s_InterfaceNamesList[] =\n", file_id);
 793   fprintf(proxy, "{\n");
 794   write_proxy_iface_name_format(stmts, "    \"%s\",\n");
 795   fprintf(proxy, "    0\n");
 796   fprintf(proxy, "};\n");
 797   fprintf(proxy, "\n");
 798
 799   fprintf(proxy, "#define _%s_CHECK_IID(n) IID_GENERIC_CHECK_IID(_%s, pIID, n)\n", file_id, file_id);
 800   fprintf(proxy, "\n");
 801   fprintf(proxy, "int __stdcall _%s_IID_Lookup(const IID* pIID, int* pIndex)\n", file_id);
 802   fprintf(proxy, "{\n");
 803   c = 0;
 804   write_iid_lookup(stmts, file_id, &c);
 805   fprintf(proxy, "    return 0;\n");
 806   fprintf(proxy, "}\n");
 807   fprintf(proxy, "\n");
 808
 809   fprintf(proxy, "const ExtendedProxyFileInfo %s_ProxyFileInfo =\n", file_id);
 810   fprintf(proxy, "{\n");
 811   fprintf(proxy, "    (const PCInterfaceProxyVtblList*)&_%s_ProxyVtblList,\n", file_id);
 812   fprintf(proxy, "    (const PCInterfaceStubVtblList*)&_%s_StubVtblList,\n", file_id);
 813   fprintf(proxy, "    _%s_InterfaceNamesList,\n", file_id);
 814   fprintf(proxy, "    0,\n");
 815   fprintf(proxy, "    &_%s_IID_Lookup,\n", file_id);
 816   fprintf(proxy, "    %d,\n", c);
 817   fprintf(proxy, "    1,\n");
 818   fprintf(proxy, "    0,\n");
 819   fprintf(proxy, "    0,\n");
 820   fprintf(proxy, "    0,\n");
 821   fprintf(proxy, "    0\n");
 822   fprintf(proxy, "};\n");
 823
 824   fclose(proxy);
 825 }