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
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <string.h>
  27 #include <ctype.h>
  28
  29 #include "widl.h"
  30 #include "utils.h"
  31 #include "parser.h"
  32 #include "header.h"
  33 #include "typegen.h"
  34 #include "expr.h"
  35
  36 static FILE* proxy;
  37 static int indent = 0;
  38
  39 static void print_proxy( const char *format, ... ) __attribute__((format (printf, 1, 2)));
  40 static void print_proxy( const char *format, ... )
  41 {
  42   va_list va;
  43   va_start( va, format );
  44   print( proxy, indent, format, va );
  45   va_end( va );
  46 }
  47
  48 static void write_stubdescproto(void)
  49 {
  50   print_proxy( "static const MIDL_STUB_DESC Object_StubDesc;\n");
  51   print_proxy( "\n");
  52 }
  53
  54 static void write_stubdesc(int expr_eval_routines)
  55 {
  56   print_proxy( "static const MIDL_STUB_DESC Object_StubDesc =\n{\n");
  57   indent++;
  58   print_proxy( "0,\n");
  59   print_proxy( "NdrOleAllocate,\n");
  60   print_proxy( "NdrOleFree,\n");
  61   print_proxy( "{0}, 0, 0, %s, 0,\n", expr_eval_routines ? "ExprEvalRoutines" : "0");
  62   print_proxy( "__MIDL_TypeFormatString.Format,\n");
  63   print_proxy( "1, /* -error bounds_check flag */\n");
  64   print_proxy( "0x%x, /* Ndr library version */\n", get_stub_mode() == MODE_Oif ? 0x50002 : 0x10001);
  65   print_proxy( "0,\n");
  66   print_proxy( "0x50200ca, /* MIDL Version 5.2.202 */\n");
  67   print_proxy( "0,\n");
  68   print_proxy("%s,\n", list_empty(&user_type_list) ? "0" : "UserMarshalRoutines");
  69   print_proxy( "0,  /* notify & notify_flag routine table */\n");
  70   print_proxy( "1,  /* Flags */\n");
  71   print_proxy( "0,  /* Reserved3 */\n");
  72   print_proxy( "0,  /* Reserved4 */\n");
  73   print_proxy( "0   /* Reserved5 */\n");
  74   indent--;
  75   print_proxy( "};\n");
  76   print_proxy( "\n");
  77 }
  78
  79 static void init_proxy(const statement_list_t *stmts)
  80 {
  81   if (proxy) return;
  82   if(!(proxy = fopen(proxy_name, "w")))
  83     error("Could not open %s for output\n", proxy_name);
  84   print_proxy( "/*** Autogenerated by WIDL %s from %s - Do not edit ***/\n", PACKAGE_VERSION, input_name);
  85   print_proxy( "\n");
  86   print_proxy( "#define __midl_proxy\n");
  87   print_proxy( "#include \"objbase.h\"\n");
  88   print_proxy( "\n");
  89   print_proxy( "#ifndef DECLSPEC_HIDDEN\n");
  90   print_proxy( "#define DECLSPEC_HIDDEN\n");
  91   print_proxy( "#endif\n");
  92   print_proxy( "\n");
  93 }
  94
  95 static void clear_output_vars( const var_list_t *args )
  96 {
  97   const var_t *arg;
  98
  99   if (!args) return;
 100   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 101   {
 102       if (is_attr(arg->attrs, ATTR_IN)) continue;
 103       if (!is_attr(arg->attrs, ATTR_OUT)) continue;
 104       if (is_ptr(arg->declspec.type))
 105       {
 106           if (type_get_type(type_pointer_get_ref_type(arg->declspec.type)) == TYPE_BASIC) continue;
 107           if (type_get_type(type_pointer_get_ref_type(arg->declspec.type)) == TYPE_ENUM) continue;
 108       }
 109       print_proxy( "if (%s) MIDL_memset( %s, 0, ", arg->name, arg->name );
 110       if (is_array(arg->declspec.type) && type_array_has_conformance(arg->declspec.type))
 111       {
 112           write_expr( proxy, type_array_get_conformance(arg->declspec.type), 1, 1, NULL, NULL, "" );
 113           fprintf( proxy, " * " );
 114       }
 115       fprintf( proxy, "sizeof( *%s ));\n", arg->name );
 116   }
 117 }
 118
 119 static int need_delegation(const type_t *iface)
 120 {
 121     const type_t *parent = type_iface_get_inherit( iface );
 122     return parent && type_iface_get_inherit(parent) && (parent->ignore || is_local( parent->attrs ));
 123 }
 124
 125 static int get_delegation_indirect(const type_t *iface, const type_t ** delegate_to)
 126 {
 127   const type_t * cur_iface;
 128   for (cur_iface = iface; cur_iface != NULL; cur_iface = type_iface_get_inherit(cur_iface))
 129     if (need_delegation(cur_iface))
 130     {
 131       if(delegate_to)
 132         *delegate_to = type_iface_get_inherit(cur_iface);
 133       return 1;
 134     }
 135   return 0;
 136 }
 137
 138 static int need_delegation_indirect(const type_t *iface)
 139 {
 140   return get_delegation_indirect(iface, NULL);
 141 }
 142
 143 static void free_variable( const var_t *arg, const char *local_var_prefix )
 144 {
 145   unsigned int type_offset = arg->typestring_offset;
 146   type_t *type = arg->declspec.type;
 147
 148   write_parameter_conf_or_var_exprs(proxy, indent, local_var_prefix, PHASE_FREE, arg, FALSE);
 149
 150   switch (typegen_detect_type(type, arg->attrs, TDT_IGNORE_STRINGS))
 151   {
 152   case TGT_ENUM:
 153   case TGT_BASIC:
 154     break;
 155
 156   case TGT_STRUCT:
 157     if (get_struct_fc(type) != FC_STRUCT)
 158       print_proxy("/* FIXME: %s code for %s struct type 0x%x missing */\n", __FUNCTION__, arg->name, get_struct_fc(type) );
 159     break;
 160
 161   case TGT_IFACE_POINTER:
 162   case TGT_POINTER:
 163   case TGT_ARRAY:
 164     print_proxy( "NdrClearOutParameters( &__frame->_StubMsg, ");
 165     fprintf(proxy, "&__MIDL_TypeFormatString.Format[%u], ", type_offset );
 166     fprintf(proxy, "(void *)%s );\n", arg->name );
 167     break;
 168
 169   default:
 170     print_proxy("/* FIXME: %s code for %s type %d missing */\n", __FUNCTION__, arg->name, type_get_type(type) );
 171   }
 172 }
 173
 174 static void proxy_free_variables( var_list_t *args, const char *local_var_prefix )
 175 {
 176   const var_t *arg;
 177
 178   if (!args) return;
 179   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 180     if (is_attr(arg->attrs, ATTR_OUT))
 181     {
 182       free_variable( arg, local_var_prefix );
 183       fprintf(proxy, "\n");
 184     }
 185 }
 186
 187 static void gen_proxy(type_t *iface, const var_t *func, int idx,
 188                       unsigned int proc_offset)
 189 {
 190   var_t *retval = type_function_get_retval(func->declspec.type);
 191   int has_ret = !is_void(retval->declspec.type);
 192   int has_full_pointer = is_full_pointer_function(func);
 193   const char *callconv = get_attrp(func->declspec.type->attrs, ATTR_CALLCONV);
 194   const var_list_t *args = type_function_get_args(func->declspec.type);
 195   if (!callconv) callconv = "STDMETHODCALLTYPE";
 196
 197   indent = 0;
 198   if (is_interpreted_func( iface, func ))
 199   {
 200       if (get_stub_mode() == MODE_Oif && !is_callas( func->attrs )) return;
 201       write_type_decl_left(proxy, &retval->declspec);
 202       print_proxy( " %s %s_%s_Proxy(\n", callconv, iface->name, get_name(func));
 203       write_args(proxy, args, iface->name, 1, TRUE, NAME_DEFAULT);
 204       print_proxy( ")\n");
 205       write_client_call_routine( proxy, iface, func, "Object", proc_offset );
 206       return;
 207   }
 208   print_proxy( "static void __finally_%s_%s_Proxy( struct __proxy_frame *__frame )\n",
 209                iface->name, get_name(func) );
 210   print_proxy( "{\n");
 211   indent++;
 212   if (has_full_pointer) write_full_pointer_free(proxy, indent, func);
 213   print_proxy( "NdrProxyFreeBuffer( __frame->This, &__frame->_StubMsg );\n" );
 214   indent--;
 215   print_proxy( "}\n");
 216   print_proxy( "\n");
 217
 218   write_type_decl_left(proxy, &retval->declspec);
 219   print_proxy( " %s %s_%s_Proxy(\n", callconv, iface->name, get_name(func));
 220   write_args(proxy, args, iface->name, 1, TRUE, NAME_DEFAULT);
 221   print_proxy( ")\n");
 222   print_proxy( "{\n");
 223   indent ++;
 224   print_proxy( "struct __proxy_frame __f, * const __frame = &__f;\n" );
 225   /* local variables */
 226   if (has_ret) {
 227     print_proxy( "%s", "" );
 228     write_type_decl(proxy, &retval->declspec, retval->name);
 229     fprintf( proxy, ";\n" );
 230   }
 231   print_proxy( "RPC_MESSAGE _RpcMessage;\n" );
 232   if (has_ret) {
 233     if (decl_indirect(retval->declspec.type))
 234         print_proxy("void *_p_%s = &%s;\n", retval->name, retval->name);
 235   }
 236   print_proxy( "\n");
 237
 238   print_proxy( "RpcExceptionInit( __proxy_filter, __finally_%s_%s_Proxy );\n", iface->name, get_name(func) );
 239   print_proxy( "__frame->This = This;\n" );
 240
 241   if (has_full_pointer)
 242     write_full_pointer_init(proxy, indent, func, FALSE);
 243
 244   /* FIXME: trace */
 245   clear_output_vars( type_function_get_args(func->declspec.type) );
 246
 247   print_proxy( "RpcTryExcept\n" );
 248   print_proxy( "{\n" );
 249   indent++;
 250   print_proxy( "NdrProxyInitialize(This, &_RpcMessage, &__frame->_StubMsg, &Object_StubDesc, %d);\n", idx);
 251   write_pointer_checks( proxy, indent, func );
 252
 253   print_proxy( "RpcTryFinally\n" );
 254   print_proxy( "{\n" );
 255   indent++;
 256
 257   write_remoting_arguments(proxy, indent, func, "", PASS_IN, PHASE_BUFFERSIZE);
 258
 259   print_proxy( "NdrProxyGetBuffer(This, &__frame->_StubMsg);\n" );
 260
 261   write_remoting_arguments(proxy, indent, func, "", PASS_IN, PHASE_MARSHAL);
 262
 263   print_proxy( "NdrProxySendReceive(This, &__frame->_StubMsg);\n" );
 264   fprintf(proxy, "\n");
 265   print_proxy( "__frame->_StubMsg.BufferStart = _RpcMessage.Buffer;\n" );
 266   print_proxy( "__frame->_StubMsg.BufferEnd   = __frame->_StubMsg.BufferStart + _RpcMessage.BufferLength;\n\n" );
 267
 268   print_proxy("if ((_RpcMessage.DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 269   indent++;
 270   print_proxy("NdrConvert( &__frame->_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 271   indent--;
 272   fprintf(proxy, "\n");
 273
 274   write_remoting_arguments(proxy, indent, func, "", PASS_OUT, PHASE_UNMARSHAL);
 275
 276   if (has_ret)
 277   {
 278       if (decl_indirect(retval->declspec.type))
 279           print_proxy("MIDL_memset(&%s, 0, sizeof(%s));\n", retval->name, retval->name);
 280       else if (is_ptr(retval->declspec.type) || is_array(retval->declspec.type))
 281           print_proxy("%s = 0;\n", retval->name);
 282       write_remoting_arguments(proxy, indent, func, "", PASS_RETURN, PHASE_UNMARSHAL);
 283   }
 284
 285   indent--;
 286   print_proxy( "}\n");
 287   print_proxy( "RpcFinally\n" );
 288   print_proxy( "{\n" );
 289   indent++;
 290   print_proxy( "__finally_%s_%s_Proxy( __frame );\n", iface->name, get_name(func) );
 291   indent--;
 292   print_proxy( "}\n");
 293   print_proxy( "RpcEndFinally\n" );
 294   indent--;
 295   print_proxy( "}\n" );
 296   print_proxy( "RpcExcept(__frame->_StubMsg.dwStubPhase != PROXY_SENDRECEIVE)\n" );
 297   print_proxy( "{\n" );
 298   if (has_ret) {
 299     indent++;
 300     proxy_free_variables( type_function_get_args(func->declspec.type), "" );
 301     print_proxy( "/* coverity[uninit_use_in_call:SUPPRESS] */\n" );
 302     print_proxy( "_RetVal = NdrProxyErrorHandler(RpcExceptionCode());\n" );
 303     indent--;
 304   }
 305   print_proxy( "}\n" );
 306   print_proxy( "RpcEndExcept\n" );
 307
 308   if (has_ret) {
 309     print_proxy( "return _RetVal;\n" );
 310   }
 311   indent--;
 312   print_proxy( "}\n");
 313   print_proxy( "\n");
 314 }
 315
 316 static void gen_stub(type_t *iface, const var_t *func, const char *cas,
 317                      unsigned int proc_offset)
 318 {
 319   const var_t *arg;
 320   int has_ret = !is_void(type_function_get_rettype(func->declspec.type));
 321   int has_full_pointer = is_full_pointer_function(func);
 322
 323   if (is_interpreted_func( iface, func )) return;
 324
 325   indent = 0;
 326   print_proxy( "struct __frame_%s_%s_Stub\n{\n", iface->name, get_name(func));
 327   indent++;
 328   print_proxy( "__DECL_EXCEPTION_FRAME\n" );
 329   print_proxy( "MIDL_STUB_MESSAGE _StubMsg;\n");
 330   print_proxy( "%s * _This;\n", iface->name );
 331   declare_stub_args( proxy, indent, func );
 332   indent--;
 333   print_proxy( "};\n\n" );
 334
 335   print_proxy( "static void __finally_%s_%s_Stub(", iface->name, get_name(func) );
 336   print_proxy( " struct __frame_%s_%s_Stub *__frame )\n{\n", iface->name, get_name(func) );
 337   indent++;
 338   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_FREE);
 339   if (has_full_pointer)
 340     write_full_pointer_free(proxy, indent, func);
 341   indent--;
 342   print_proxy( "}\n\n" );
 343
 344   print_proxy( "void __RPC_STUB %s_%s_Stub(\n", iface->name, get_name(func));
 345   indent++;
 346   print_proxy( "IRpcStubBuffer* This,\n");
 347   print_proxy( "IRpcChannelBuffer *_pRpcChannelBuffer,\n");
 348   print_proxy( "PRPC_MESSAGE _pRpcMessage,\n");
 349   print_proxy( "DWORD* _pdwStubPhase)\n");
 350   indent--;
 351   print_proxy( "{\n");
 352   indent++;
 353   print_proxy( "struct __frame_%s_%s_Stub __f, * const __frame = &__f;\n\n",
 354                iface->name, get_name(func) );
 355
 356   print_proxy("__frame->_This = (%s*)((CStdStubBuffer*)This)->pvServerObject;\n\n", iface->name);
 357
 358   /* FIXME: trace */
 359
 360   print_proxy("NdrStubInitialize(_pRpcMessage, &__frame->_StubMsg, &Object_StubDesc, _pRpcChannelBuffer);\n");
 361   fprintf(proxy, "\n");
 362   print_proxy( "RpcExceptionInit( 0, __finally_%s_%s_Stub );\n", iface->name, get_name(func) );
 363
 364   write_parameters_init(proxy, indent, func, "__frame->");
 365
 366   print_proxy("RpcTryFinally\n");
 367   print_proxy("{\n");
 368   indent++;
 369   if (has_full_pointer)
 370     write_full_pointer_init(proxy, indent, func, TRUE);
 371   print_proxy("if ((_pRpcMessage->DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 372   indent++;
 373   print_proxy("NdrConvert( &__frame->_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 374   indent--;
 375   fprintf(proxy, "\n");
 376
 377   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_IN, PHASE_UNMARSHAL);
 378   fprintf(proxy, "\n");
 379
 380   assign_stub_out_args( proxy, indent, func, "__frame->" );
 381
 382   print_proxy("*_pdwStubPhase = STUB_CALL_SERVER;\n");
 383   fprintf(proxy, "\n");
 384   print_proxy( "%s", has_ret ? "__frame->_RetVal = " : "" );
 385   if (cas) fprintf(proxy, "%s_%s_Stub", iface->name, cas);
 386   else fprintf(proxy, "__frame->_This->lpVtbl->%s", get_name(func));
 387   fprintf(proxy, "(__frame->_This");
 388
 389   if (type_function_get_args(func->declspec.type))
 390   {
 391       LIST_FOR_EACH_ENTRY( arg, type_function_get_args(func->declspec.type), const var_t, entry )
 392           fprintf(proxy, ", %s__frame->%s", is_array(arg->declspec.type) && !type_array_is_decl_as_ptr(arg->declspec.type) ? "*" :"" , arg->name);
 393   }
 394   fprintf(proxy, ");\n");
 395   fprintf(proxy, "\n");
 396   print_proxy("*_pdwStubPhase = STUB_MARSHAL;\n");
 397   fprintf(proxy, "\n");
 398
 399   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_BUFFERSIZE);
 400
 401   if (!is_void(type_function_get_rettype(func->declspec.type)))
 402     write_remoting_arguments(proxy, indent, func, "__frame->", PASS_RETURN, PHASE_BUFFERSIZE);
 403
 404   print_proxy("NdrStubGetBuffer(This, _pRpcChannelBuffer, &__frame->_StubMsg);\n");
 405
 406   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_MARSHAL);
 407   fprintf(proxy, "\n");
 408
 409   /* marshall the return value */
 410   if (!is_void(type_function_get_rettype(func->declspec.type)))
 411     write_remoting_arguments(proxy, indent, func, "__frame->", PASS_RETURN, PHASE_MARSHAL);
 412
 413   indent--;
 414   print_proxy("}\n");
 415   print_proxy("RpcFinally\n");
 416   print_proxy("{\n");
 417   indent++;
 418   print_proxy( "__finally_%s_%s_Stub( __frame );\n", iface->name, get_name(func) );
 419   indent--;
 420   print_proxy("}\n");
 421   print_proxy("RpcEndFinally\n");
 422
 423   print_proxy("_pRpcMessage->BufferLength = __frame->_StubMsg.Buffer - (unsigned char *)_pRpcMessage->Buffer;\n");
 424   indent--;
 425
 426   print_proxy("}\n");
 427   print_proxy("\n");
 428 }
 429
 430 static void gen_stub_thunk( type_t *iface, const var_t *func, unsigned int proc_offset )
 431 {
 432     int has_ret = !is_void( type_function_get_rettype( func->declspec.type ));
 433     const var_t *arg, *callas = is_callas( func->attrs );
 434     const var_list_t *args = type_function_get_args( func->declspec.type );
 435
 436     indent = 0;
 437     print_proxy( "void __RPC_API %s_%s_Thunk( PMIDL_STUB_MESSAGE pStubMsg )\n",
 438                  iface->name, get_name(func) );
 439     print_proxy( "{\n");
 440     indent++;
 441     write_func_param_struct( proxy, iface, func->declspec.type,
 442                              "*pParamStruct = (struct _PARAM_STRUCT *)pStubMsg->StackTop", has_ret );
 443     print_proxy( "%s%s_%s_Stub( pParamStruct->This",
 444                  has_ret ? "pParamStruct->_RetVal = " : "", iface->name, callas->name );
 445     indent++;
 446     if (args) LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 447     {
 448         fprintf( proxy, ",\n%*spParamStruct->%s", 4 * indent, "", arg->name );
 449     }
 450     fprintf( proxy, " );\n" );
 451     indent--;
 452     indent--;
 453     print_proxy( "}\n\n");
 454 }
 455
 456 int count_methods(const type_t *iface)
 457 {
 458     const statement_t *stmt;
 459     int count = 0;
 460
 461     if (type_iface_get_inherit(iface))
 462         count = count_methods(type_iface_get_inherit(iface));
 463
 464     STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 465         const var_t *func = stmt->u.var;
 466         if (!is_callas(func->attrs)) count++;
 467     }
 468     return count;
 469 }
 470
 471 static const statement_t * get_callas_source(const type_t * iface, const var_t * def)
 472 {
 473   const statement_t * source;
 474   STATEMENTS_FOR_EACH_FUNC( source, type_iface_get_stmts(iface)) {
 475     const var_t * cas = is_callas(source->u.var->attrs );
 476     if (cas && !strcmp(def->name, cas->name))
 477       return source;
 478   }
 479   return NULL;
 480 }
 481
 482 static void write_proxy_procformatstring_offsets( const type_t *iface, int skip )
 483 {
 484     const statement_t *stmt;
 485
 486     if (type_iface_get_inherit(iface))
 487         write_proxy_procformatstring_offsets( type_iface_get_inherit(iface), need_delegation(iface));
 488     else
 489         return;
 490
 491     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
 492     {
 493         const var_t *func = stmt->u.var;
 494         int missing = 0;
 495
 496         if (is_callas(func->attrs)) continue;
 497         if (is_local(func->attrs))
 498         {
 499             const statement_t * callas_source = get_callas_source(iface, func);
 500             if (!callas_source)
 501                 missing = 1;
 502             else
 503                 func = callas_source->u.var;
 504         }
 505         if (skip || missing)
 506             print_proxy( "(unsigned short)-1,  /* %s::%s */\n", iface->name, get_name(func));
 507         else
 508             print_proxy( "%u,  /* %s::%s */\n", func->procstring_offset, iface->name, get_name(func));
 509     }
 510 }
 511
 512 static int write_proxy_methods(type_t *iface, int skip)
 513 {
 514   const statement_t *stmt;
 515   int i = 0;
 516
 517   if (type_iface_get_inherit(iface))
 518     i = write_proxy_methods(type_iface_get_inherit(iface),
 519                             need_delegation(iface));
 520   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 521     const var_t *func = stmt->u.var;
 522     if (!is_callas(func->attrs)) {
 523       if (skip || (is_local(func->attrs) && !get_callas_source(iface, func)))
 524           print_proxy( "0,  /* %s::%s */\n", iface->name, get_name(func));
 525       else if (is_interpreted_func( iface, func ) &&
 526                get_stub_mode() == MODE_Oif &&
 527                !is_local( func->attrs ) &&
 528                type_iface_get_inherit(iface))
 529           print_proxy( "(void *)-1,  /* %s::%s */\n", iface->name, get_name(func));
 530       else
 531           print_proxy( "%s_%s_Proxy,\n", iface->name, get_name(func));
 532       i++;
 533     }
 534   }
 535   return i;
 536 }
 537
 538 static int write_stub_methods(type_t *iface, int skip)
 539 {
 540   const statement_t *stmt;
 541   int i = 0;
 542
 543   if (type_iface_get_inherit(iface))
 544     i = write_stub_methods(type_iface_get_inherit(iface), need_delegation(iface));
 545   else
 546     return i; /* skip IUnknown */
 547
 548   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 549     const var_t *func = stmt->u.var;
 550     if (!is_callas(func->attrs)) {
 551       int missing = 0;
 552       const char * fname = get_name(func);
 553       if(is_local(func->attrs)) {
 554         const statement_t * callas_source = get_callas_source(iface, func);
 555         if(!callas_source)
 556           missing = 1;
 557         else
 558           fname = get_name(callas_source->u.var);
 559       }
 560       if (i) fprintf(proxy,",\n");
 561       if (skip || missing) print_proxy("STUB_FORWARDING_FUNCTION");
 562       else if (is_interpreted_func( iface, func ))
 563           print_proxy( "(PRPC_STUB_FUNCTION)%s", get_stub_mode() == MODE_Oif ? "NdrStubCall2" : "NdrStubCall" );
 564       else print_proxy( "%s_%s_Stub", iface->name, fname);
 565       i++;
 566     }
 567   }
 568   return i;
 569 }
 570
 571 static void write_thunk_methods( type_t *iface, int skip )
 572 {
 573     const statement_t *stmt;
 574
 575     if (type_iface_get_inherit( iface ))
 576         write_thunk_methods( type_iface_get_inherit(iface), need_delegation(iface) );
 577     else
 578         return; /* skip IUnknown */
 579
 580     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
 581     {
 582         var_t *func = stmt->u.var;
 583         const statement_t * callas_source = NULL;
 584
 585         if (is_callas(func->attrs)) continue;
 586         if (is_local(func->attrs)) callas_source = get_callas_source(iface, func);
 587
 588         if (!skip && callas_source && is_interpreted_func( iface, func ))
 589             print_proxy( "%s_%s_Thunk,\n", iface->name, get_name(callas_source->u.var) );
 590         else
 591             print_proxy( "0, /* %s::%s */\n", iface->name, get_name(func) );
 592     }
 593 }
 594
 595 static void write_proxy(type_t *iface, unsigned int *proc_offset)
 596 {
 597   int count;
 598   const statement_t *stmt;
 599   int first_func = 1;
 600   int needs_stub_thunks = 0;
 601   int needs_inline_stubs = need_inline_stubs( iface ) || need_delegation( iface );
 602
 603   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 604     var_t *func = stmt->u.var;
 605     if (first_func) {
 606       fprintf(proxy, "/*****************************************************************************\n");
 607       fprintf(proxy, " * %s interface\n", iface->name);
 608       fprintf(proxy, " */\n");
 609       first_func = 0;
 610     }
 611     if (!is_local(func->attrs)) {
 612       const var_t *cas = is_callas(func->attrs);
 613       const char *cname = cas ? cas->name : NULL;
 614       int idx = func->func_idx;
 615       if (cname) {
 616           const statement_t *stmt2;
 617           STATEMENTS_FOR_EACH_FUNC(stmt2, type_iface_get_stmts(iface)) {
 618               const var_t *m = stmt2->u.var;
 619               if (!strcmp(m->name, cname))
 620               {
 621                   idx = m->func_idx;
 622                   break;
 623               }
 624           }
 625       }
 626       func->procstring_offset = *proc_offset;
 627       gen_proxy(iface, func, idx, *proc_offset);
 628       gen_stub(iface, func, cname, *proc_offset);
 629       if (cas && is_interpreted_func( iface, func ))
 630       {
 631           needs_stub_thunks = 1;
 632           gen_stub_thunk(iface, func, *proc_offset);
 633       }
 634       *proc_offset += get_size_procformatstring_func( iface, func );
 635     }
 636   }
 637
 638   count = count_methods(iface);
 639
 640   print_proxy( "static const unsigned short %s_FormatStringOffsetTable[] =\n", iface->name );
 641   print_proxy( "{\n" );
 642   indent++;
 643   write_proxy_procformatstring_offsets( iface, 0 );
 644   indent--;
 645   print_proxy( "};\n\n" );
 646
 647   /* proxy info */
 648   if (get_stub_mode() == MODE_Oif)
 649   {
 650       print_proxy( "static const MIDL_STUBLESS_PROXY_INFO %s_ProxyInfo =\n", iface->name );
 651       print_proxy( "{\n" );
 652       indent++;
 653       print_proxy( "&Object_StubDesc,\n" );
 654       print_proxy( "__MIDL_ProcFormatString.Format,\n" );
 655       print_proxy( "&%s_FormatStringOffsetTable[-3],\n", iface->name );
 656       print_proxy( "0,\n" );
 657       print_proxy( "0,\n" );
 658       print_proxy( "0\n" );
 659       indent--;
 660       print_proxy( "};\n\n" );
 661   }
 662
 663   /* proxy vtable */
 664   print_proxy( "static %sCINTERFACE_PROXY_VTABLE(%d) _%sProxyVtbl =\n",
 665                (get_stub_mode() != MODE_Os || need_delegation_indirect(iface)) ? "" : "const ",
 666                count, iface->name);
 667   print_proxy( "{\n");
 668   indent++;
 669   print_proxy( "{\n");
 670   indent++;
 671   if (get_stub_mode() == MODE_Oif) print_proxy( "&%s_ProxyInfo,\n", iface->name );
 672   print_proxy( "&IID_%s,\n", iface->name);
 673   indent--;
 674   print_proxy( "},\n");
 675   print_proxy( "{\n");
 676   indent++;
 677   write_proxy_methods(iface, FALSE);
 678   indent--;
 679   print_proxy( "}\n");
 680   indent--;
 681   print_proxy( "};\n\n");
 682
 683   /* stub thunk table */
 684   if (needs_stub_thunks)
 685   {
 686       print_proxy( "static const STUB_THUNK %s_StubThunkTable[] =\n", iface->name);
 687       print_proxy( "{\n");
 688       indent++;
 689       write_thunk_methods( iface, 0 );
 690       indent--;
 691       print_proxy( "};\n\n");
 692   }
 693
 694   /* server info */
 695   print_proxy( "static const MIDL_SERVER_INFO %s_ServerInfo =\n", iface->name );
 696   print_proxy( "{\n" );
 697   indent++;
 698   print_proxy( "&Object_StubDesc,\n" );
 699   print_proxy( "0,\n" );
 700   print_proxy( "__MIDL_ProcFormatString.Format,\n" );
 701   print_proxy( "&%s_FormatStringOffsetTable[-3],\n", iface->name );
 702   if (needs_stub_thunks)
 703       print_proxy( "&%s_StubThunkTable[-3],\n", iface->name );
 704   else
 705       print_proxy( "0,\n" );
 706   print_proxy( "0,\n" );
 707   print_proxy( "0,\n" );
 708   print_proxy( "0\n" );
 709   indent--;
 710   print_proxy( "};\n\n" );
 711
 712   /* stub vtable */
 713   if (needs_inline_stubs)
 714   {
 715       print_proxy( "static const PRPC_STUB_FUNCTION %s_table[] =\n", iface->name);
 716       print_proxy( "{\n");
 717       indent++;
 718       write_stub_methods(iface, FALSE);
 719       fprintf(proxy, "\n");
 720       indent--;
 721       fprintf(proxy, "};\n\n");
 722   }
 723   print_proxy( "static %sCInterfaceStubVtbl _%sStubVtbl =\n",
 724                need_delegation_indirect(iface) ? "" : "const ", iface->name);
 725   print_proxy( "{\n");
 726   indent++;
 727   print_proxy( "{\n");
 728   indent++;
 729   print_proxy( "&IID_%s,\n", iface->name);
 730   print_proxy( "&%s_ServerInfo,\n", iface->name );
 731   print_proxy( "%d,\n", count);
 732   if (needs_inline_stubs) print_proxy( "&%s_table[-3]\n", iface->name );
 733   else print_proxy( "0\n" );
 734   indent--;
 735   print_proxy( "},\n");
 736   print_proxy( "{\n");
 737   indent++;
 738   print_proxy( "%s_%s\n",
 739                type_iface_get_async_iface(iface) == iface ? "CStdAsyncStubBuffer" : "CStdStubBuffer",
 740                need_delegation_indirect(iface) ? "DELEGATING_METHODS" : "METHODS");
 741   indent--;
 742   print_proxy( "}\n");
 743   indent--;
 744   print_proxy( "};\n");
 745   print_proxy( "\n");
 746 }
 747
 748 static int does_any_iface(const statement_list_t *stmts, type_pred_t pred)
 749 {
 750   const statement_t *stmt;
 751
 752   if (stmts)
 753     LIST_FOR_EACH_ENTRY(stmt, stmts, const statement_t, entry)
 754     {
 755       if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
 756       {
 757         if (pred(stmt->u.type))
 758           return TRUE;
 759       }
 760     }
 761
 762   return FALSE;
 763 }
 764
 765 int need_proxy(const type_t *iface)
 766 {
 767     if (!is_object( iface )) return 0;
 768     if (is_local( iface->attrs )) return 0;
 769     if (is_attr( iface->attrs, ATTR_DISPINTERFACE )) return 0;
 770     return 1;
 771 }
 772
 773 int need_stub(const type_t *iface)
 774 {
 775   return !is_object(iface) && !is_local(iface->attrs);
 776 }
 777
 778 int need_proxy_file(const statement_list_t *stmts)
 779 {
 780     return does_any_iface(stmts, need_proxy);
 781 }
 782
 783 int need_proxy_delegation(const statement_list_t *stmts)
 784 {
 785     return does_any_iface(stmts, need_delegation);
 786 }
 787
 788 int need_inline_stubs(const type_t *iface)
 789 {
 790     const statement_t *stmt;
 791
 792     if (get_stub_mode() == MODE_Os) return 1;
 793
 794     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
 795     {
 796         const var_t *func = stmt->u.var;
 797         if (is_local( func->attrs )) continue;
 798         if (!is_interpreted_func( iface, func )) return 1;
 799     }
 800     return 0;
 801 }
 802
 803 static int need_proxy_and_inline_stubs(const type_t *iface)
 804 {
 805     const statement_t *stmt;
 806
 807     if (!need_proxy( iface )) return 0;
 808     if (get_stub_mode() == MODE_Os) return 1;
 809
 810     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
 811     {
 812         const var_t *func = stmt->u.var;
 813         if (is_local( func->attrs )) continue;
 814         if (!is_interpreted_func( iface, func )) return 1;
 815     }
 816     return 0;
 817 }
 818
 819 int need_stub_files(const statement_list_t *stmts)
 820 {
 821   return does_any_iface(stmts, need_stub);
 822 }
 823
 824 int need_inline_stubs_file(const statement_list_t *stmts)
 825 {
 826   return does_any_iface(stmts, need_inline_stubs);
 827 }
 828
 829 static void write_proxy_stmts(const statement_list_t *stmts, unsigned int *proc_offset)
 830 {
 831   const statement_t *stmt;
 832   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 833   {
 834     if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
 835     {
 836       type_t *iface = stmt->u.type;
 837       if (need_proxy(iface))
 838       {
 839         write_proxy(iface, proc_offset);
 840         if (type_iface_get_async_iface(iface))
 841           write_proxy(type_iface_get_async_iface(iface), proc_offset);
 842       }
 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 struct uuid *uuid1 = get_attrp( (*iface1)->attrs, ATTR_UUID );
 852     const struct uuid *uuid2 = get_attrp( (*iface2)->attrs, ATTR_UUID );
 853     return memcmp( uuid1, uuid2, sizeof(*uuid1) );
 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_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
 864         {
 865             type_t *iface = stmt->u.type;
 866             if (type_iface_get_inherit(iface) && need_proxy(iface))
 867             {
 868                 *ifaces = xrealloc( *ifaces, (*count + 1) * sizeof(**ifaces) );
 869                 (*ifaces)[(*count)++] = iface;
 870                 if (type_iface_get_async_iface(iface))
 871                 {
 872                     iface = type_iface_get_async_iface(iface);
 873                     *ifaces = xrealloc( *ifaces, (*count + 1) * sizeof(**ifaces) );
 874                     (*ifaces)[(*count)++] = iface;
 875                 }
 876             }
 877         }
 878     }
 879 }
 880
 881 static type_t **sort_interfaces( const statement_list_t *stmts, int *count )
 882 {
 883     type_t **ifaces = NULL;
 884
 885     *count = 0;
 886     build_iface_list( stmts, &ifaces, count );
 887     qsort( ifaces, *count, sizeof(*ifaces), cmp_iid );
 888     return ifaces;
 889 }
 890
 891 static void write_proxy_routines(const statement_list_t *stmts)
 892 {
 893   int expr_eval_routines;
 894   unsigned int proc_offset = 0;
 895   char *file_id = proxy_token;
 896   int i, count, have_baseiid = 0;
 897   unsigned int table_version;
 898   type_t **interfaces;
 899   const type_t * delegate_to;
 900
 901   print_proxy( "#ifndef __REDQ_RPCPROXY_H_VERSION__\n");
 902   print_proxy( "#define __REQUIRED_RPCPROXY_H_VERSION__ %u\n", get_stub_mode() == MODE_Oif ? 475 : 440);
 903   print_proxy( "#endif\n");
 904   print_proxy( "\n");
 905   if (get_stub_mode() == MODE_Oif) print_proxy( "#define USE_STUBLESS_PROXY\n");
 906   print_proxy( "#include \"rpcproxy.h\"\n");
 907   print_proxy( "#ifndef __RPCPROXY_H_VERSION__\n");
 908   print_proxy( "#error This code needs a newer version of rpcproxy.h\n");
 909   print_proxy( "#endif /* __RPCPROXY_H_VERSION__ */\n");
 910   print_proxy( "\n");
 911   print_proxy( "#include \"%s\"\n", header_name);
 912   print_proxy( "\n");
 913
 914   if (does_any_iface(stmts, need_proxy_and_inline_stubs))
 915   {
 916       write_exceptions( proxy );
 917       print_proxy( "\n");
 918       print_proxy( "struct __proxy_frame\n");
 919       print_proxy( "{\n");
 920       print_proxy( "    __DECL_EXCEPTION_FRAME\n");
 921       print_proxy( "    MIDL_STUB_MESSAGE _StubMsg;\n");
 922       print_proxy( "    void             *This;\n");
 923       print_proxy( "};\n");
 924       print_proxy( "\n");
 925       print_proxy("static int __proxy_filter( struct __proxy_frame *__frame )\n");
 926       print_proxy( "{\n");
 927       print_proxy( "    return (__frame->_StubMsg.dwStubPhase != PROXY_SENDRECEIVE);\n");
 928       print_proxy( "}\n");
 929       print_proxy( "\n");
 930   }
 931
 932   write_formatstringsdecl(proxy, indent, stmts, need_proxy);
 933   write_stubdescproto();
 934   write_proxy_stmts(stmts, &proc_offset);
 935
 936   expr_eval_routines = write_expr_eval_routines(proxy, proxy_token);
 937   if (expr_eval_routines)
 938       write_expr_eval_routine_list(proxy, proxy_token);
 939   write_user_quad_list(proxy);
 940   write_stubdesc(expr_eval_routines);
 941
 942   print_proxy( "#if !defined(__RPC_WIN%u__)\n", pointer_size == 8 ? 64 : 32);
 943   print_proxy( "#error Invalid build platform for this proxy.\n");
 944   print_proxy( "#endif\n");
 945   print_proxy( "\n");
 946   write_procformatstring(proxy, stmts, need_proxy);
 947   write_typeformatstring(proxy, stmts, need_proxy);
 948
 949   interfaces = sort_interfaces(stmts, &count);
 950   fprintf(proxy, "static const CInterfaceProxyVtbl* const _%s_ProxyVtblList[] =\n", file_id);
 951   fprintf(proxy, "{\n");
 952   for (i = 0; i < count; i++)
 953       fprintf(proxy, "    (const CInterfaceProxyVtbl*)&_%sProxyVtbl,\n", interfaces[i]->name);
 954   fprintf(proxy, "    0\n");
 955   fprintf(proxy, "};\n");
 956   fprintf(proxy, "\n");
 957
 958   fprintf(proxy, "static const CInterfaceStubVtbl* const _%s_StubVtblList[] =\n", file_id);
 959   fprintf(proxy, "{\n");
 960   for (i = 0; i < count; i++)
 961       fprintf(proxy, "    &_%sStubVtbl,\n", interfaces[i]->name);
 962   fprintf(proxy, "    0\n");
 963   fprintf(proxy, "};\n");
 964   fprintf(proxy, "\n");
 965
 966   fprintf(proxy, "static PCInterfaceName const _%s_InterfaceNamesList[] =\n", file_id);
 967   fprintf(proxy, "{\n");
 968   for (i = 0; i < count; i++)
 969       fprintf(proxy, "    \"%s\",\n", interfaces[i]->name);
 970   fprintf(proxy, "    0\n");
 971   fprintf(proxy, "};\n");
 972   fprintf(proxy, "\n");
 973
 974   for (i = 0; i < count; i++)
 975       if ((have_baseiid = get_delegation_indirect( interfaces[i], NULL ))) break;
 976
 977   if (have_baseiid)
 978   {
 979       fprintf(proxy, "static const IID * _%s_BaseIIDList[] =\n", file_id);
 980       fprintf(proxy, "{\n");
 981       for (i = 0; i < count; i++)
 982       {
 983           if (get_delegation_indirect(interfaces[i], &delegate_to))
 984               fprintf( proxy, "    &IID_%s,  /* %s */\n", delegate_to->name, interfaces[i]->name );
 985           else
 986               fprintf( proxy, "    0,\n" );
 987       }
 988       fprintf(proxy, "    0\n");
 989       fprintf(proxy, "};\n");
 990       fprintf(proxy, "\n");
 991   }
 992
 993   fprintf(proxy, "static int __stdcall _%s_IID_Lookup(const IID* pIID, int* pIndex)\n", file_id);
 994   fprintf(proxy, "{\n");
 995   fprintf(proxy, "    int low = 0, high = %d;\n", count - 1);
 996   fprintf(proxy, "\n");
 997   fprintf(proxy, "    while (low <= high)\n");
 998   fprintf(proxy, "    {\n");
 999   fprintf(proxy, "        int pos = (low + high) / 2;\n");
1000   fprintf(proxy, "        int res = IID_GENERIC_CHECK_IID(_%s, pIID, pos);\n", file_id);
1001   fprintf(proxy, "        if (!res) { *pIndex = pos; return 1; }\n");
1002   fprintf(proxy, "        if (res > 0) low = pos + 1;\n");
1003   fprintf(proxy, "        else high = pos - 1;\n");
1004   fprintf(proxy, "    }\n");
1005   fprintf(proxy, "    return 0;\n");
1006   fprintf(proxy, "}\n");
1007   fprintf(proxy, "\n");
1008
1009   table_version = get_stub_mode() == MODE_Oif ? 2 : 1;
1010   for (i = 0; i < count; i++)
1011   {
1012       if (type_iface_get_async_iface(interfaces[i]) != interfaces[i]) continue;
1013       if (table_version != 6)
1014       {
1015           fprintf(proxy, "static const IID *_AsyncInterfaceTable[] =\n");
1016           fprintf(proxy, "{\n");
1017           table_version = 6;
1018       }
1019       fprintf(proxy, "    &IID_%s,\n", interfaces[i]->name);
1020       fprintf(proxy, "    (IID*)(LONG_PTR)-1,\n");
1021   }
1022   if (table_version == 6)
1023   {
1024       fprintf(proxy, "    0\n");
1025       fprintf(proxy, "};\n");
1026       fprintf(proxy, "\n");
1027   }
1028
1029   fprintf(proxy, "const ExtendedProxyFileInfo %s_ProxyFileInfo DECLSPEC_HIDDEN =\n", file_id);
1030   fprintf(proxy, "{\n");
1031   fprintf(proxy, "    (const PCInterfaceProxyVtblList*)_%s_ProxyVtblList,\n", file_id);
1032   fprintf(proxy, "    (const PCInterfaceStubVtblList*)_%s_StubVtblList,\n", file_id);
1033   fprintf(proxy, "    _%s_InterfaceNamesList,\n", file_id);
1034   if (have_baseiid) fprintf(proxy, "    _%s_BaseIIDList,\n", file_id);
1035   else fprintf(proxy, "    0,\n");
1036   fprintf(proxy, "    _%s_IID_Lookup,\n", file_id);
1037   fprintf(proxy, "    %d,\n", count);
1038   fprintf(proxy, "    %u,\n", table_version);
1039   fprintf(proxy, "    %s,\n", table_version == 6 ? "_AsyncInterfaceTable" : "0");
1040   fprintf(proxy, "    0,\n");
1041   fprintf(proxy, "    0,\n");
1042   fprintf(proxy, "    0\n");
1043   fprintf(proxy, "};\n");
1044 }
1045
1046 void write_proxies(const statement_list_t *stmts)
1047 {
1048   if (!do_proxies) return;
1049   if (do_everything && !need_proxy_file(stmts)) return;
1050
1051   init_proxy(stmts);
1052   if(!proxy) return;
1053
1054   write_proxy_routines( stmts );
1055   fclose(proxy);
1056 }