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 static FILE* proxy;
  41 static int indent = 0;
  42
  43 static void print_proxy( const char *format, ... ) __attribute__((format (printf, 1, 2)));
  44 static void print_proxy( const char *format, ... )
  45 {
  46   va_list va;
  47   va_start( va, format );
  48   print( proxy, indent, format, va );
  49   va_end( va );
  50 }
  51
  52 static void write_stubdescproto(void)
  53 {
  54   print_proxy( "static const MIDL_STUB_DESC Object_StubDesc;\n");
  55   print_proxy( "\n");
  56 }
  57
  58 static void write_stubdesc(int expr_eval_routines)
  59 {
  60   print_proxy( "static const MIDL_STUB_DESC Object_StubDesc =\n{\n");
  61   indent++;
  62   print_proxy( "0,\n");
  63   print_proxy( "NdrOleAllocate,\n");
  64   print_proxy( "NdrOleFree,\n");
  65   print_proxy( "{0}, 0, 0, %s, 0,\n", expr_eval_routines ? "ExprEvalRoutines" : "0");
  66   print_proxy( "__MIDL_TypeFormatString.Format,\n");
  67   print_proxy( "1, /* -error bounds_check flag */\n");
  68   print_proxy( "0x%x, /* Ndr library version */\n", get_stub_mode() == MODE_Oif ? 0x50002 : 0x10001);
  69   print_proxy( "0,\n");
  70   print_proxy( "0x50200ca, /* MIDL Version 5.2.202 */\n");
  71   print_proxy( "0,\n");
  72   print_proxy("%s,\n", list_empty(&user_type_list) ? "0" : "UserMarshalRoutines");
  73   print_proxy( "0,  /* notify & notify_flag routine table */\n");
  74   print_proxy( "1,  /* Flags */\n");
  75   print_proxy( "0,  /* Reserved3 */\n");
  76   print_proxy( "0,  /* Reserved4 */\n");
  77   print_proxy( "0   /* Reserved5 */\n");
  78   indent--;
  79   print_proxy( "};\n");
  80   print_proxy( "\n");
  81 }
  82
  83 static void init_proxy(const statement_list_t *stmts)
  84 {
  85   if (proxy) return;
  86   if(!(proxy = fopen(proxy_name, "w")))
  87     error("Could not open %s for output\n", proxy_name);
  88   print_proxy( "/*** Autogenerated by WIDL %s from %s - Do not edit ***/\n", PACKAGE_VERSION, input_name);
  89   print_proxy( "\n");
  90   print_proxy( "#define __midl_proxy\n");
  91   print_proxy( "#include \"objbase.h\"\n");
  92   print_proxy( "\n");
  93   print_proxy( "#ifndef DECLSPEC_HIDDEN\n");
  94   print_proxy( "#define DECLSPEC_HIDDEN\n");
  95   print_proxy( "#endif\n");
  96   print_proxy( "\n");
  97 }
  98
  99 static void clear_output_vars( const var_list_t *args )
 100 {
 101   const var_t *arg;
 102
 103   if (!args) return;
 104   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 105   {
 106       if (is_attr(arg->attrs, ATTR_IN)) continue;
 107       if (!is_attr(arg->attrs, ATTR_OUT)) continue;
 108       if (is_ptr(arg->declspec.type))
 109       {
 110           if (type_get_type(type_pointer_get_ref_type(arg->declspec.type)) == TYPE_BASIC) continue;
 111           if (type_get_type(type_pointer_get_ref_type(arg->declspec.type)) == TYPE_ENUM) continue;
 112       }
 113       print_proxy( "if (%s) MIDL_memset( %s, 0, ", arg->name, arg->name );
 114       if (is_array(arg->declspec.type) && type_array_has_conformance(arg->declspec.type))
 115       {
 116           write_expr( proxy, type_array_get_conformance(arg->declspec.type), 1, 1, NULL, NULL, "" );
 117           fprintf( proxy, " * " );
 118       }
 119       fprintf( proxy, "sizeof( *%s ));\n", arg->name );
 120   }
 121 }
 122
 123 static int need_delegation(const type_t *iface)
 124 {
 125     const type_t *parent = type_iface_get_inherit( iface );
 126     return parent && type_iface_get_inherit(parent) && (parent->ignore || is_local( parent->attrs ));
 127 }
 128
 129 static int get_delegation_indirect(const type_t *iface, const type_t ** delegate_to)
 130 {
 131   const type_t * cur_iface;
 132   for (cur_iface = iface; cur_iface != NULL; cur_iface = type_iface_get_inherit(cur_iface))
 133     if (need_delegation(cur_iface))
 134     {
 135       if(delegate_to)
 136         *delegate_to = type_iface_get_inherit(cur_iface);
 137       return 1;
 138     }
 139   return 0;
 140 }
 141
 142 static int need_delegation_indirect(const type_t *iface)
 143 {
 144   return get_delegation_indirect(iface, NULL);
 145 }
 146
 147 static void free_variable( const var_t *arg, const char *local_var_prefix )
 148 {
 149   unsigned int type_offset = arg->typestring_offset;
 150   type_t *type = arg->declspec.type;
 151
 152   write_parameter_conf_or_var_exprs(proxy, indent, local_var_prefix, PHASE_FREE, arg, FALSE);
 153
 154   switch (typegen_detect_type(type, arg->attrs, TDT_IGNORE_STRINGS))
 155   {
 156   case TGT_ENUM:
 157   case TGT_BASIC:
 158     break;
 159
 160   case TGT_STRUCT:
 161     if (get_struct_fc(type) != FC_STRUCT)
 162       print_proxy("/* FIXME: %s code for %s struct type 0x%x missing */\n", __FUNCTION__, arg->name, get_struct_fc(type) );
 163     break;
 164
 165   case TGT_IFACE_POINTER:
 166   case TGT_POINTER:
 167   case TGT_ARRAY:
 168     print_proxy( "NdrClearOutParameters( &__frame->_StubMsg, ");
 169     fprintf(proxy, "&__MIDL_TypeFormatString.Format[%u], ", type_offset );
 170     fprintf(proxy, "(void *)%s );\n", arg->name );
 171     break;
 172
 173   default:
 174     print_proxy("/* FIXME: %s code for %s type %d missing */\n", __FUNCTION__, arg->name, type_get_type(type) );
 175   }
 176 }
 177
 178 static void proxy_free_variables( var_list_t *args, const char *local_var_prefix )
 179 {
 180   const var_t *arg;
 181
 182   if (!args) return;
 183   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 184     if (is_attr(arg->attrs, ATTR_OUT))
 185     {
 186       free_variable( arg, local_var_prefix );
 187       fprintf(proxy, "\n");
 188     }
 189 }
 190
 191 static void gen_proxy(type_t *iface, const var_t *func, int idx,
 192                       unsigned int proc_offset)
 193 {
 194   var_t *retval = type_function_get_retval(func->declspec.type);
 195   int has_ret = !is_void(retval->declspec.type);
 196   int has_full_pointer = is_full_pointer_function(func);
 197   const char *callconv = get_attrp(func->declspec.type->attrs, ATTR_CALLCONV);
 198   const var_list_t *args = type_function_get_args(func->declspec.type);
 199   if (!callconv) callconv = "STDMETHODCALLTYPE";
 200
 201   indent = 0;
 202   if (is_interpreted_func( iface, func ))
 203   {
 204       if (get_stub_mode() == MODE_Oif && !is_callas( func->attrs )) return;
 205       write_type_decl_left(proxy, &retval->declspec);
 206       print_proxy( " %s %s_%s_Proxy(\n", callconv, iface->name, get_name(func));
 207       write_args(proxy, args, iface->name, 1, TRUE, NAME_DEFAULT);
 208       print_proxy( ")\n");
 209       write_client_call_routine( proxy, iface, func, "Object", proc_offset );
 210       return;
 211   }
 212   print_proxy( "static void __finally_%s_%s_Proxy( struct __proxy_frame *__frame )\n",
 213                iface->name, get_name(func) );
 214   print_proxy( "{\n");
 215   indent++;
 216   if (has_full_pointer) write_full_pointer_free(proxy, indent, func);
 217   print_proxy( "NdrProxyFreeBuffer( __frame->This, &__frame->_StubMsg );\n" );
 218   indent--;
 219   print_proxy( "}\n");
 220   print_proxy( "\n");
 221
 222   write_type_decl_left(proxy, &retval->declspec);
 223   print_proxy( " %s %s_%s_Proxy(\n", callconv, iface->name, get_name(func));
 224   write_args(proxy, args, iface->name, 1, TRUE, NAME_DEFAULT);
 225   print_proxy( ")\n");
 226   print_proxy( "{\n");
 227   indent ++;
 228   print_proxy( "struct __proxy_frame __f, * const __frame = &__f;\n" );
 229   /* local variables */
 230   if (has_ret) {
 231     print_proxy( "%s", "" );
 232     write_type_decl(proxy, &retval->declspec, retval->name);
 233     fprintf( proxy, ";\n" );
 234   }
 235   print_proxy( "RPC_MESSAGE _RpcMessage;\n" );
 236   if (has_ret) {
 237     if (decl_indirect(retval->declspec.type))
 238         print_proxy("void *_p_%s = &%s;\n", retval->name, retval->name);
 239   }
 240   print_proxy( "\n");
 241
 242   print_proxy( "RpcExceptionInit( __proxy_filter, __finally_%s_%s_Proxy );\n", iface->name, get_name(func) );
 243   print_proxy( "__frame->This = This;\n" );
 244
 245   if (has_full_pointer)
 246     write_full_pointer_init(proxy, indent, func, FALSE);
 247
 248   /* FIXME: trace */
 249   clear_output_vars( type_function_get_args(func->declspec.type) );
 250
 251   print_proxy( "RpcTryExcept\n" );
 252   print_proxy( "{\n" );
 253   indent++;
 254   print_proxy( "NdrProxyInitialize(This, &_RpcMessage, &__frame->_StubMsg, &Object_StubDesc, %d);\n", idx);
 255   write_pointer_checks( proxy, indent, func );
 256
 257   print_proxy( "RpcTryFinally\n" );
 258   print_proxy( "{\n" );
 259   indent++;
 260
 261   write_remoting_arguments(proxy, indent, func, "", PASS_IN, PHASE_BUFFERSIZE);
 262
 263   print_proxy( "NdrProxyGetBuffer(This, &__frame->_StubMsg);\n" );
 264
 265   write_remoting_arguments(proxy, indent, func, "", PASS_IN, PHASE_MARSHAL);
 266
 267   print_proxy( "NdrProxySendReceive(This, &__frame->_StubMsg);\n" );
 268   fprintf(proxy, "\n");
 269   print_proxy( "__frame->_StubMsg.BufferStart = _RpcMessage.Buffer;\n" );
 270   print_proxy( "__frame->_StubMsg.BufferEnd   = __frame->_StubMsg.BufferStart + _RpcMessage.BufferLength;\n\n" );
 271
 272   print_proxy("if ((_RpcMessage.DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 273   indent++;
 274   print_proxy("NdrConvert( &__frame->_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 275   indent--;
 276   fprintf(proxy, "\n");
 277
 278   write_remoting_arguments(proxy, indent, func, "", PASS_OUT, PHASE_UNMARSHAL);
 279
 280   if (has_ret)
 281   {
 282       if (decl_indirect(retval->declspec.type))
 283           print_proxy("MIDL_memset(&%s, 0, sizeof(%s));\n", retval->name, retval->name);
 284       else if (is_ptr(retval->declspec.type) || is_array(retval->declspec.type))
 285           print_proxy("%s = 0;\n", retval->name);
 286       write_remoting_arguments(proxy, indent, func, "", PASS_RETURN, PHASE_UNMARSHAL);
 287   }
 288
 289   indent--;
 290   print_proxy( "}\n");
 291   print_proxy( "RpcFinally\n" );
 292   print_proxy( "{\n" );
 293   indent++;
 294   print_proxy( "__finally_%s_%s_Proxy( __frame );\n", iface->name, get_name(func) );
 295   indent--;
 296   print_proxy( "}\n");
 297   print_proxy( "RpcEndFinally\n" );
 298   indent--;
 299   print_proxy( "}\n" );
 300   print_proxy( "RpcExcept(__frame->_StubMsg.dwStubPhase != PROXY_SENDRECEIVE)\n" );
 301   print_proxy( "{\n" );
 302   if (has_ret) {
 303     indent++;
 304     proxy_free_variables( type_function_get_args(func->declspec.type), "" );
 305     print_proxy( "_RetVal = NdrProxyErrorHandler(RpcExceptionCode());\n" );
 306     indent--;
 307   }
 308   print_proxy( "}\n" );
 309   print_proxy( "RpcEndExcept\n" );
 310
 311   if (has_ret) {
 312     print_proxy( "return _RetVal;\n" );
 313   }
 314   indent--;
 315   print_proxy( "}\n");
 316   print_proxy( "\n");
 317 }
 318
 319 static void gen_stub(type_t *iface, const var_t *func, const char *cas,
 320                      unsigned int proc_offset)
 321 {
 322   const var_t *arg;
 323   int has_ret = !is_void(type_function_get_rettype(func->declspec.type));
 324   int has_full_pointer = is_full_pointer_function(func);
 325
 326   if (is_interpreted_func( iface, func )) return;
 327
 328   indent = 0;
 329   print_proxy( "struct __frame_%s_%s_Stub\n{\n", iface->name, get_name(func));
 330   indent++;
 331   print_proxy( "__DECL_EXCEPTION_FRAME\n" );
 332   print_proxy( "MIDL_STUB_MESSAGE _StubMsg;\n");
 333   print_proxy( "%s * _This;\n", iface->name );
 334   declare_stub_args( proxy, indent, func );
 335   indent--;
 336   print_proxy( "};\n\n" );
 337
 338   print_proxy( "static void __finally_%s_%s_Stub(", iface->name, get_name(func) );
 339   print_proxy( " struct __frame_%s_%s_Stub *__frame )\n{\n", iface->name, get_name(func) );
 340   indent++;
 341   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_FREE);
 342   if (has_full_pointer)
 343     write_full_pointer_free(proxy, indent, func);
 344   indent--;
 345   print_proxy( "}\n\n" );
 346
 347   print_proxy( "void __RPC_STUB %s_%s_Stub(\n", iface->name, get_name(func));
 348   indent++;
 349   print_proxy( "IRpcStubBuffer* This,\n");
 350   print_proxy( "IRpcChannelBuffer *_pRpcChannelBuffer,\n");
 351   print_proxy( "PRPC_MESSAGE _pRpcMessage,\n");
 352   print_proxy( "DWORD* _pdwStubPhase)\n");
 353   indent--;
 354   print_proxy( "{\n");
 355   indent++;
 356   print_proxy( "struct __frame_%s_%s_Stub __f, * const __frame = &__f;\n\n",
 357                iface->name, get_name(func) );
 358
 359   print_proxy("__frame->_This = (%s*)((CStdStubBuffer*)This)->pvServerObject;\n\n", iface->name);
 360
 361   /* FIXME: trace */
 362
 363   print_proxy("NdrStubInitialize(_pRpcMessage, &__frame->_StubMsg, &Object_StubDesc, _pRpcChannelBuffer);\n");
 364   fprintf(proxy, "\n");
 365   print_proxy( "RpcExceptionInit( 0, __finally_%s_%s_Stub );\n", iface->name, get_name(func) );
 366
 367   write_parameters_init(proxy, indent, func, "__frame->");
 368
 369   print_proxy("RpcTryFinally\n");
 370   print_proxy("{\n");
 371   indent++;
 372   if (has_full_pointer)
 373     write_full_pointer_init(proxy, indent, func, TRUE);
 374   print_proxy("if ((_pRpcMessage->DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 375   indent++;
 376   print_proxy("NdrConvert( &__frame->_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 377   indent--;
 378   fprintf(proxy, "\n");
 379
 380   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_IN, PHASE_UNMARSHAL);
 381   fprintf(proxy, "\n");
 382
 383   assign_stub_out_args( proxy, indent, func, "__frame->" );
 384
 385   print_proxy("*_pdwStubPhase = STUB_CALL_SERVER;\n");
 386   fprintf(proxy, "\n");
 387   print_proxy( "%s", has_ret ? "__frame->_RetVal = " : "" );
 388   if (cas) fprintf(proxy, "%s_%s_Stub", iface->name, cas);
 389   else fprintf(proxy, "__frame->_This->lpVtbl->%s", get_name(func));
 390   fprintf(proxy, "(__frame->_This");
 391
 392   if (type_function_get_args(func->declspec.type))
 393   {
 394       LIST_FOR_EACH_ENTRY( arg, type_function_get_args(func->declspec.type), const var_t, entry )
 395           fprintf(proxy, ", %s__frame->%s", is_array(arg->declspec.type) && !type_array_is_decl_as_ptr(arg->declspec.type) ? "*" :"" , arg->name);
 396   }
 397   fprintf(proxy, ");\n");
 398   fprintf(proxy, "\n");
 399   print_proxy("*_pdwStubPhase = STUB_MARSHAL;\n");
 400   fprintf(proxy, "\n");
 401
 402   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_BUFFERSIZE);
 403
 404   if (!is_void(type_function_get_rettype(func->declspec.type)))
 405     write_remoting_arguments(proxy, indent, func, "__frame->", PASS_RETURN, PHASE_BUFFERSIZE);
 406
 407   print_proxy("NdrStubGetBuffer(This, _pRpcChannelBuffer, &__frame->_StubMsg);\n");
 408
 409   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_MARSHAL);
 410   fprintf(proxy, "\n");
 411
 412   /* marshall the return value */
 413   if (!is_void(type_function_get_rettype(func->declspec.type)))
 414     write_remoting_arguments(proxy, indent, func, "__frame->", PASS_RETURN, PHASE_MARSHAL);
 415
 416   indent--;
 417   print_proxy("}\n");
 418   print_proxy("RpcFinally\n");
 419   print_proxy("{\n");
 420   indent++;
 421   print_proxy( "__finally_%s_%s_Stub( __frame );\n", iface->name, get_name(func) );
 422   indent--;
 423   print_proxy("}\n");
 424   print_proxy("RpcEndFinally\n");
 425
 426   print_proxy("_pRpcMessage->BufferLength = __frame->_StubMsg.Buffer - (unsigned char *)_pRpcMessage->Buffer;\n");
 427   indent--;
 428
 429   print_proxy("}\n");
 430   print_proxy("\n");
 431 }
 432
 433 static void gen_stub_thunk( type_t *iface, const var_t *func, unsigned int proc_offset )
 434 {
 435     int has_ret = !is_void( type_function_get_rettype( func->declspec.type ));
 436     const var_t *arg, *callas = is_callas( func->attrs );
 437     const var_list_t *args = type_function_get_args( func->declspec.type );
 438
 439     indent = 0;
 440     print_proxy( "void __RPC_API %s_%s_Thunk( PMIDL_STUB_MESSAGE pStubMsg )\n",
 441                  iface->name, get_name(func) );
 442     print_proxy( "{\n");
 443     indent++;
 444     write_func_param_struct( proxy, iface, func->declspec.type,
 445                              "*pParamStruct = (struct _PARAM_STRUCT *)pStubMsg->StackTop", has_ret );
 446     print_proxy( "%s%s_%s_Stub( pParamStruct->This",
 447                  has_ret ? "pParamStruct->_RetVal = " : "", iface->name, callas->name );
 448     indent++;
 449     if (args) LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 450     {
 451         fprintf( proxy, ",\n%*spParamStruct->%s", 4 * indent, "", arg->name );
 452     }
 453     fprintf( proxy, " );\n" );
 454     indent--;
 455     indent--;
 456     print_proxy( "}\n\n");
 457 }
 458
 459 int count_methods(const type_t *iface)
 460 {
 461     const statement_t *stmt;
 462     int count = 0;
 463
 464     if (type_iface_get_inherit(iface))
 465         count = count_methods(type_iface_get_inherit(iface));
 466
 467     STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 468         const var_t *func = stmt->u.var;
 469         if (!is_callas(func->attrs)) count++;
 470     }
 471     return count;
 472 }
 473
 474 static const statement_t * get_callas_source(const type_t * iface, const var_t * def)
 475 {
 476   const statement_t * source;
 477   STATEMENTS_FOR_EACH_FUNC( source, type_iface_get_stmts(iface)) {
 478     const var_t * cas = is_callas(source->u.var->attrs );
 479     if (cas && !strcmp(def->name, cas->name))
 480       return source;
 481   }
 482   return NULL;
 483 }
 484
 485 static void write_proxy_procformatstring_offsets( const type_t *iface, int skip )
 486 {
 487     const statement_t *stmt;
 488
 489     if (type_iface_get_inherit(iface))
 490         write_proxy_procformatstring_offsets( type_iface_get_inherit(iface), need_delegation(iface));
 491     else
 492         return;
 493
 494     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
 495     {
 496         const var_t *func = stmt->u.var;
 497         int missing = 0;
 498
 499         if (is_callas(func->attrs)) continue;
 500         if (is_local(func->attrs))
 501         {
 502             const statement_t * callas_source = get_callas_source(iface, func);
 503             if (!callas_source)
 504                 missing = 1;
 505             else
 506                 func = callas_source->u.var;
 507         }
 508         if (skip || missing)
 509             print_proxy( "(unsigned short)-1,  /* %s::%s */\n", iface->name, get_name(func));
 510         else
 511             print_proxy( "%u,  /* %s::%s */\n", func->procstring_offset, iface->name, get_name(func));
 512     }
 513 }
 514
 515 static int write_proxy_methods(type_t *iface, int skip)
 516 {
 517   const statement_t *stmt;
 518   int i = 0;
 519
 520   if (type_iface_get_inherit(iface))
 521     i = write_proxy_methods(type_iface_get_inherit(iface),
 522                             need_delegation(iface));
 523   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 524     const var_t *func = stmt->u.var;
 525     if (!is_callas(func->attrs)) {
 526       if (skip || (is_local(func->attrs) && !get_callas_source(iface, func)))
 527           print_proxy( "0,  /* %s::%s */\n", iface->name, get_name(func));
 528       else if (is_interpreted_func( iface, func ) &&
 529                get_stub_mode() == MODE_Oif &&
 530                !is_local( func->attrs ) &&
 531                type_iface_get_inherit(iface))
 532           print_proxy( "(void *)-1,  /* %s::%s */\n", iface->name, get_name(func));
 533       else
 534           print_proxy( "%s_%s_Proxy,\n", iface->name, get_name(func));
 535       i++;
 536     }
 537   }
 538   return i;
 539 }
 540
 541 static int write_stub_methods(type_t *iface, int skip)
 542 {
 543   const statement_t *stmt;
 544   int i = 0;
 545
 546   if (type_iface_get_inherit(iface))
 547     i = write_stub_methods(type_iface_get_inherit(iface), need_delegation(iface));
 548   else
 549     return i; /* skip IUnknown */
 550
 551   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 552     const var_t *func = stmt->u.var;
 553     if (!is_callas(func->attrs)) {
 554       int missing = 0;
 555       const char * fname = get_name(func);
 556       if(is_local(func->attrs)) {
 557         const statement_t * callas_source = get_callas_source(iface, func);
 558         if(!callas_source)
 559           missing = 1;
 560         else
 561           fname = get_name(callas_source->u.var);
 562       }
 563       if (i) fprintf(proxy,",\n");
 564       if (skip || missing) print_proxy("STUB_FORWARDING_FUNCTION");
 565       else if (is_interpreted_func( iface, func ))
 566           print_proxy( "(PRPC_STUB_FUNCTION)%s", get_stub_mode() == MODE_Oif ? "NdrStubCall2" : "NdrStubCall" );
 567       else print_proxy( "%s_%s_Stub", iface->name, fname);
 568       i++;
 569     }
 570   }
 571   return i;
 572 }
 573
 574 static void write_thunk_methods( type_t *iface, int skip )
 575 {
 576     const statement_t *stmt;
 577
 578     if (type_iface_get_inherit( iface ))
 579         write_thunk_methods( type_iface_get_inherit(iface), need_delegation(iface) );
 580     else
 581         return; /* skip IUnknown */
 582
 583     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
 584     {
 585         var_t *func = stmt->u.var;
 586         const statement_t * callas_source = NULL;
 587
 588         if (is_callas(func->attrs)) continue;
 589         if (is_local(func->attrs)) callas_source = get_callas_source(iface, func);
 590
 591         if (!skip && callas_source && is_interpreted_func( iface, func ))
 592             print_proxy( "%s_%s_Thunk,\n", iface->name, get_name(callas_source->u.var) );
 593         else
 594             print_proxy( "0, /* %s::%s */\n", iface->name, get_name(func) );
 595     }
 596 }
 597
 598 static void write_proxy(type_t *iface, unsigned int *proc_offset)
 599 {
 600   int count;
 601   const statement_t *stmt;
 602   int first_func = 1;
 603   int needs_stub_thunks = 0;
 604   int needs_inline_stubs = need_inline_stubs( iface ) || need_delegation( iface );
 605
 606   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 607     var_t *func = stmt->u.var;
 608     if (first_func) {
 609       fprintf(proxy, "/*****************************************************************************\n");
 610       fprintf(proxy, " * %s interface\n", iface->name);
 611       fprintf(proxy, " */\n");
 612       first_func = 0;
 613     }
 614     if (!is_local(func->attrs)) {
 615       const var_t *cas = is_callas(func->attrs);
 616       const char *cname = cas ? cas->name : NULL;
 617       int idx = func->func_idx;
 618       if (cname) {
 619           const statement_t *stmt2;
 620           STATEMENTS_FOR_EACH_FUNC(stmt2, type_iface_get_stmts(iface)) {
 621               const var_t *m = stmt2->u.var;
 622               if (!strcmp(m->name, cname))
 623               {
 624                   idx = m->func_idx;
 625                   break;
 626               }
 627           }
 628       }
 629       func->procstring_offset = *proc_offset;
 630       gen_proxy(iface, func, idx, *proc_offset);
 631       gen_stub(iface, func, cname, *proc_offset);
 632       if (cas && is_interpreted_func( iface, func ))
 633       {
 634           needs_stub_thunks = 1;
 635           gen_stub_thunk(iface, func, *proc_offset);
 636       }
 637       *proc_offset += get_size_procformatstring_func( iface, func );
 638     }
 639   }
 640
 641   count = count_methods(iface);
 642
 643   print_proxy( "static const unsigned short %s_FormatStringOffsetTable[] =\n", iface->name );
 644   print_proxy( "{\n" );
 645   indent++;
 646   write_proxy_procformatstring_offsets( iface, 0 );
 647   indent--;
 648   print_proxy( "};\n\n" );
 649
 650   /* proxy info */
 651   if (get_stub_mode() == MODE_Oif)
 652   {
 653       print_proxy( "static const MIDL_STUBLESS_PROXY_INFO %s_ProxyInfo =\n", iface->name );
 654       print_proxy( "{\n" );
 655       indent++;
 656       print_proxy( "&Object_StubDesc,\n" );
 657       print_proxy( "__MIDL_ProcFormatString.Format,\n" );
 658       print_proxy( "&%s_FormatStringOffsetTable[-3],\n", iface->name );
 659       print_proxy( "0,\n" );
 660       print_proxy( "0,\n" );
 661       print_proxy( "0\n" );
 662       indent--;
 663       print_proxy( "};\n\n" );
 664   }
 665
 666   /* proxy vtable */
 667   print_proxy( "static %sCINTERFACE_PROXY_VTABLE(%d) _%sProxyVtbl =\n",
 668                (get_stub_mode() != MODE_Os || need_delegation_indirect(iface)) ? "" : "const ",
 669                count, iface->name);
 670   print_proxy( "{\n");
 671   indent++;
 672   print_proxy( "{\n");
 673   indent++;
 674   if (get_stub_mode() == MODE_Oif) print_proxy( "&%s_ProxyInfo,\n", iface->name );
 675   print_proxy( "&IID_%s,\n", iface->name);
 676   indent--;
 677   print_proxy( "},\n");
 678   print_proxy( "{\n");
 679   indent++;
 680   write_proxy_methods(iface, FALSE);
 681   indent--;
 682   print_proxy( "}\n");
 683   indent--;
 684   print_proxy( "};\n\n");
 685
 686   /* stub thunk table */
 687   if (needs_stub_thunks)
 688   {
 689       print_proxy( "static const STUB_THUNK %s_StubThunkTable[] =\n", iface->name);
 690       print_proxy( "{\n");
 691       indent++;
 692       write_thunk_methods( iface, 0 );
 693       indent--;
 694       print_proxy( "};\n\n");
 695   }
 696
 697   /* server info */
 698   print_proxy( "static const MIDL_SERVER_INFO %s_ServerInfo =\n", iface->name );
 699   print_proxy( "{\n" );
 700   indent++;
 701   print_proxy( "&Object_StubDesc,\n" );
 702   print_proxy( "0,\n" );
 703   print_proxy( "__MIDL_ProcFormatString.Format,\n" );
 704   print_proxy( "&%s_FormatStringOffsetTable[-3],\n", iface->name );
 705   if (needs_stub_thunks)
 706       print_proxy( "&%s_StubThunkTable[-3],\n", iface->name );
 707   else
 708       print_proxy( "0,\n" );
 709   print_proxy( "0,\n" );
 710   print_proxy( "0,\n" );
 711   print_proxy( "0\n" );
 712   indent--;
 713   print_proxy( "};\n\n" );
 714
 715   /* stub vtable */
 716   if (needs_inline_stubs)
 717   {
 718       print_proxy( "static const PRPC_STUB_FUNCTION %s_table[] =\n", iface->name);
 719       print_proxy( "{\n");
 720       indent++;
 721       write_stub_methods(iface, FALSE);
 722       fprintf(proxy, "\n");
 723       indent--;
 724       fprintf(proxy, "};\n\n");
 725   }
 726   print_proxy( "static %sCInterfaceStubVtbl _%sStubVtbl =\n",
 727                need_delegation_indirect(iface) ? "" : "const ", iface->name);
 728   print_proxy( "{\n");
 729   indent++;
 730   print_proxy( "{\n");
 731   indent++;
 732   print_proxy( "&IID_%s,\n", iface->name);
 733   print_proxy( "&%s_ServerInfo,\n", iface->name );
 734   print_proxy( "%d,\n", count);
 735   if (needs_inline_stubs) print_proxy( "&%s_table[-3]\n", iface->name );
 736   else print_proxy( "0\n" );
 737   indent--;
 738   print_proxy( "},\n");
 739   print_proxy( "{\n");
 740   indent++;
 741   print_proxy( "%s_%s\n",
 742                type_iface_get_async_iface(iface) == iface ? "CStdAsyncStubBuffer" : "CStdStubBuffer",
 743                need_delegation_indirect(iface) ? "DELEGATING_METHODS" : "METHODS");
 744   indent--;
 745   print_proxy( "}\n");
 746   indent--;
 747   print_proxy( "};\n");
 748   print_proxy( "\n");
 749 }
 750
 751 static int does_any_iface(const statement_list_t *stmts, type_pred_t pred)
 752 {
 753   const statement_t *stmt;
 754
 755   if (stmts)
 756     LIST_FOR_EACH_ENTRY(stmt, stmts, const statement_t, entry)
 757     {
 758       if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
 759       {
 760         if (pred(stmt->u.type))
 761           return TRUE;
 762       }
 763     }
 764
 765   return FALSE;
 766 }
 767
 768 int need_proxy(const type_t *iface)
 769 {
 770     if (!is_object( iface )) return 0;
 771     if (is_local( iface->attrs )) return 0;
 772     if (is_attr( iface->attrs, ATTR_DISPINTERFACE )) return 0;
 773     return 1;
 774 }
 775
 776 int need_stub(const type_t *iface)
 777 {
 778   return !is_object(iface) && !is_local(iface->attrs);
 779 }
 780
 781 int need_proxy_file(const statement_list_t *stmts)
 782 {
 783     return does_any_iface(stmts, need_proxy);
 784 }
 785
 786 int need_proxy_delegation(const statement_list_t *stmts)
 787 {
 788     return does_any_iface(stmts, need_delegation);
 789 }
 790
 791 int need_inline_stubs(const type_t *iface)
 792 {
 793     const statement_t *stmt;
 794
 795     if (get_stub_mode() == MODE_Os) return 1;
 796
 797     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
 798     {
 799         const var_t *func = stmt->u.var;
 800         if (is_local( func->attrs )) continue;
 801         if (!is_interpreted_func( iface, func )) return 1;
 802     }
 803     return 0;
 804 }
 805
 806 static int need_proxy_and_inline_stubs(const type_t *iface)
 807 {
 808     const statement_t *stmt;
 809
 810     if (!need_proxy( iface )) return 0;
 811     if (get_stub_mode() == MODE_Os) return 1;
 812
 813     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
 814     {
 815         const var_t *func = stmt->u.var;
 816         if (is_local( func->attrs )) continue;
 817         if (!is_interpreted_func( iface, func )) return 1;
 818     }
 819     return 0;
 820 }
 821
 822 int need_stub_files(const statement_list_t *stmts)
 823 {
 824   return does_any_iface(stmts, need_stub);
 825 }
 826
 827 int need_inline_stubs_file(const statement_list_t *stmts)
 828 {
 829   return does_any_iface(stmts, need_inline_stubs);
 830 }
 831
 832 static void write_proxy_stmts(const statement_list_t *stmts, unsigned int *proc_offset)
 833 {
 834   const statement_t *stmt;
 835   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 836   {
 837     if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
 838     {
 839       type_t *iface = stmt->u.type;
 840       if (need_proxy(iface))
 841       {
 842         write_proxy(iface, proc_offset);
 843         if (type_iface_get_async_iface(iface))
 844           write_proxy(type_iface_get_async_iface(iface), proc_offset);
 845       }
 846     }
 847   }
 848 }
 849
 850 static int cmp_iid( const void *ptr1, const void *ptr2 )
 851 {
 852     const type_t * const *iface1 = ptr1;
 853     const type_t * const *iface2 = ptr2;
 854     const UUID *uuid1 = get_attrp( (*iface1)->attrs, ATTR_UUID );
 855     const UUID *uuid2 = get_attrp( (*iface2)->attrs, ATTR_UUID );
 856     return memcmp( uuid1, uuid2, sizeof(UUID) );
 857 }
 858
 859 static void build_iface_list( const statement_list_t *stmts, type_t **ifaces[], int *count )
 860 {
 861     const statement_t *stmt;
 862
 863     if (!stmts) return;
 864     LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 865     {
 866         if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
 867         {
 868             type_t *iface = stmt->u.type;
 869             if (type_iface_get_inherit(iface) && need_proxy(iface))
 870             {
 871                 *ifaces = xrealloc( *ifaces, (*count + 1) * sizeof(**ifaces) );
 872                 (*ifaces)[(*count)++] = iface;
 873                 if (type_iface_get_async_iface(iface))
 874                 {
 875                     iface = type_iface_get_async_iface(iface);
 876                     *ifaces = xrealloc( *ifaces, (*count + 1) * sizeof(**ifaces) );
 877                     (*ifaces)[(*count)++] = iface;
 878                 }
 879             }
 880         }
 881     }
 882 }
 883
 884 static type_t **sort_interfaces( const statement_list_t *stmts, int *count )
 885 {
 886     type_t **ifaces = NULL;
 887
 888     *count = 0;
 889     build_iface_list( stmts, &ifaces, count );
 890     qsort( ifaces, *count, sizeof(*ifaces), cmp_iid );
 891     return ifaces;
 892 }
 893
 894 static void write_proxy_routines(const statement_list_t *stmts)
 895 {
 896   int expr_eval_routines;
 897   unsigned int proc_offset = 0;
 898   char *file_id = proxy_token;
 899   int i, count, have_baseiid = 0;
 900   unsigned int table_version;
 901   type_t **interfaces;
 902   const type_t * delegate_to;
 903
 904   print_proxy( "#ifndef __REDQ_RPCPROXY_H_VERSION__\n");
 905   print_proxy( "#define __REQUIRED_RPCPROXY_H_VERSION__ %u\n", get_stub_mode() == MODE_Oif ? 475 : 440);
 906   print_proxy( "#endif\n");
 907   print_proxy( "\n");
 908   if (get_stub_mode() == MODE_Oif) print_proxy( "#define USE_STUBLESS_PROXY\n");
 909   print_proxy( "#include \"rpcproxy.h\"\n");
 910   print_proxy( "#ifndef __RPCPROXY_H_VERSION__\n");
 911   print_proxy( "#error This code needs a newer version of rpcproxy.h\n");
 912   print_proxy( "#endif /* __RPCPROXY_H_VERSION__ */\n");
 913   print_proxy( "\n");
 914   print_proxy( "#include \"%s\"\n", header_name);
 915   print_proxy( "\n");
 916
 917   if (does_any_iface(stmts, need_proxy_and_inline_stubs))
 918   {
 919       write_exceptions( proxy );
 920       print_proxy( "\n");
 921       print_proxy( "struct __proxy_frame\n");
 922       print_proxy( "{\n");
 923       print_proxy( "    __DECL_EXCEPTION_FRAME\n");
 924       print_proxy( "    MIDL_STUB_MESSAGE _StubMsg;\n");
 925       print_proxy( "    void             *This;\n");
 926       print_proxy( "};\n");
 927       print_proxy( "\n");
 928       print_proxy("static int __proxy_filter( struct __proxy_frame *__frame )\n");
 929       print_proxy( "{\n");
 930       print_proxy( "    return (__frame->_StubMsg.dwStubPhase != PROXY_SENDRECEIVE);\n");
 931       print_proxy( "}\n");
 932       print_proxy( "\n");
 933   }
 934
 935   write_formatstringsdecl(proxy, indent, stmts, need_proxy);
 936   write_stubdescproto();
 937   write_proxy_stmts(stmts, &proc_offset);
 938
 939   expr_eval_routines = write_expr_eval_routines(proxy, proxy_token);
 940   if (expr_eval_routines)
 941       write_expr_eval_routine_list(proxy, proxy_token);
 942   write_user_quad_list(proxy);
 943   write_stubdesc(expr_eval_routines);
 944
 945   print_proxy( "#if !defined(__RPC_WIN%u__)\n", pointer_size == 8 ? 64 : 32);
 946   print_proxy( "#error Invalid build platform for this proxy.\n");
 947   print_proxy( "#endif\n");
 948   print_proxy( "\n");
 949   write_procformatstring(proxy, stmts, need_proxy);
 950   write_typeformatstring(proxy, stmts, need_proxy);
 951
 952   interfaces = sort_interfaces(stmts, &count);
 953   fprintf(proxy, "static const CInterfaceProxyVtbl* const _%s_ProxyVtblList[] =\n", file_id);
 954   fprintf(proxy, "{\n");
 955   for (i = 0; i < count; i++)
 956       fprintf(proxy, "    (const CInterfaceProxyVtbl*)&_%sProxyVtbl,\n", interfaces[i]->name);
 957   fprintf(proxy, "    0\n");
 958   fprintf(proxy, "};\n");
 959   fprintf(proxy, "\n");
 960
 961   fprintf(proxy, "static const CInterfaceStubVtbl* const _%s_StubVtblList[] =\n", file_id);
 962   fprintf(proxy, "{\n");
 963   for (i = 0; i < count; i++)
 964       fprintf(proxy, "    &_%sStubVtbl,\n", interfaces[i]->name);
 965   fprintf(proxy, "    0\n");
 966   fprintf(proxy, "};\n");
 967   fprintf(proxy, "\n");
 968
 969   fprintf(proxy, "static PCInterfaceName const _%s_InterfaceNamesList[] =\n", file_id);
 970   fprintf(proxy, "{\n");
 971   for (i = 0; i < count; i++)
 972       fprintf(proxy, "    \"%s\",\n", interfaces[i]->name);
 973   fprintf(proxy, "    0\n");
 974   fprintf(proxy, "};\n");
 975   fprintf(proxy, "\n");
 976
 977   for (i = 0; i < count; i++)
 978       if ((have_baseiid = get_delegation_indirect( interfaces[i], NULL ))) break;
 979
 980   if (have_baseiid)
 981   {
 982       fprintf(proxy, "static const IID * _%s_BaseIIDList[] =\n", file_id);
 983       fprintf(proxy, "{\n");
 984       for (i = 0; i < count; i++)
 985       {
 986           if (get_delegation_indirect(interfaces[i], &delegate_to))
 987               fprintf( proxy, "    &IID_%s,  /* %s */\n", delegate_to->name, interfaces[i]->name );
 988           else
 989               fprintf( proxy, "    0,\n" );
 990       }
 991       fprintf(proxy, "    0\n");
 992       fprintf(proxy, "};\n");
 993       fprintf(proxy, "\n");
 994   }
 995
 996   fprintf(proxy, "static int __stdcall _%s_IID_Lookup(const IID* pIID, int* pIndex)\n", file_id);
 997   fprintf(proxy, "{\n");
 998   fprintf(proxy, "    int low = 0, high = %d;\n", count - 1);
 999   fprintf(proxy, "\n");
1000   fprintf(proxy, "    while (low <= high)\n");
1001   fprintf(proxy, "    {\n");
1002   fprintf(proxy, "        int pos = (low + high) / 2;\n");
1003   fprintf(proxy, "        int res = IID_GENERIC_CHECK_IID(_%s, pIID, pos);\n", file_id);
1004   fprintf(proxy, "        if (!res) { *pIndex = pos; return 1; }\n");
1005   fprintf(proxy, "        if (res > 0) low = pos + 1;\n");
1006   fprintf(proxy, "        else high = pos - 1;\n");
1007   fprintf(proxy, "    }\n");
1008   fprintf(proxy, "    return 0;\n");
1009   fprintf(proxy, "}\n");
1010   fprintf(proxy, "\n");
1011
1012   table_version = get_stub_mode() == MODE_Oif ? 2 : 1;
1013   for (i = 0; i < count; i++)
1014   {
1015       if (type_iface_get_async_iface(interfaces[i]) != interfaces[i]) continue;
1016       if (table_version != 6)
1017       {
1018           fprintf(proxy, "static const IID *_AsyncInterfaceTable[] =\n");
1019           fprintf(proxy, "{\n");
1020           table_version = 6;
1021       }
1022       fprintf(proxy, "    &IID_%s,\n", interfaces[i]->name);
1023       fprintf(proxy, "    (IID*)(LONG_PTR)-1,\n");
1024   }
1025   if (table_version == 6)
1026   {
1027       fprintf(proxy, "    0\n");
1028       fprintf(proxy, "};\n");
1029       fprintf(proxy, "\n");
1030   }
1031
1032   fprintf(proxy, "const ExtendedProxyFileInfo %s_ProxyFileInfo DECLSPEC_HIDDEN =\n", file_id);
1033   fprintf(proxy, "{\n");
1034   fprintf(proxy, "    (const PCInterfaceProxyVtblList*)_%s_ProxyVtblList,\n", file_id);
1035   fprintf(proxy, "    (const PCInterfaceStubVtblList*)_%s_StubVtblList,\n", file_id);
1036   fprintf(proxy, "    _%s_InterfaceNamesList,\n", file_id);
1037   if (have_baseiid) fprintf(proxy, "    _%s_BaseIIDList,\n", file_id);
1038   else fprintf(proxy, "    0,\n");
1039   fprintf(proxy, "    _%s_IID_Lookup,\n", file_id);
1040   fprintf(proxy, "    %d,\n", count);
1041   fprintf(proxy, "    %u,\n", table_version);
1042   fprintf(proxy, "    %s,\n", table_version == 6 ? "_AsyncInterfaceTable" : "0");
1043   fprintf(proxy, "    0,\n");
1044   fprintf(proxy, "    0,\n");
1045   fprintf(proxy, "    0\n");
1046   fprintf(proxy, "};\n");
1047 }
1048
1049 void write_proxies(const statement_list_t *stmts)
1050 {
1051   if (!do_proxies) return;
1052   if (do_everything && !need_proxy_file(stmts)) return;
1053
1054   init_proxy(stmts);
1055   if(!proxy) return;
1056
1057   write_proxy_routines( stmts );
1058   fclose(proxy);
1059 }