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( "_RetVal = NdrProxyErrorHandler(RpcExceptionCode());\n" );
 302     indent--;
 303   }
 304   print_proxy( "}\n" );
 305   print_proxy( "RpcEndExcept\n" );
 306
 307   if (has_ret) {
 308     print_proxy( "return _RetVal;\n" );
 309   }
 310   indent--;
 311   print_proxy( "}\n");
 312   print_proxy( "\n");
 313 }
 314
 315 static void gen_stub(type_t *iface, const var_t *func, const char *cas,
 316                      unsigned int proc_offset)
 317 {
 318   const var_t *arg;
 319   int has_ret = !is_void(type_function_get_rettype(func->declspec.type));
 320   int has_full_pointer = is_full_pointer_function(func);
 321
 322   if (is_interpreted_func( iface, func )) return;
 323
 324   indent = 0;
 325   print_proxy( "struct __frame_%s_%s_Stub\n{\n", iface->name, get_name(func));
 326   indent++;
 327   print_proxy( "__DECL_EXCEPTION_FRAME\n" );
 328   print_proxy( "MIDL_STUB_MESSAGE _StubMsg;\n");
 329   print_proxy( "%s * _This;\n", iface->name );
 330   declare_stub_args( proxy, indent, func );
 331   indent--;
 332   print_proxy( "};\n\n" );
 333
 334   print_proxy( "static void __finally_%s_%s_Stub(", iface->name, get_name(func) );
 335   print_proxy( " struct __frame_%s_%s_Stub *__frame )\n{\n", iface->name, get_name(func) );
 336   indent++;
 337   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_FREE);
 338   if (has_full_pointer)
 339     write_full_pointer_free(proxy, indent, func);
 340   indent--;
 341   print_proxy( "}\n\n" );
 342
 343   print_proxy( "void __RPC_STUB %s_%s_Stub(\n", iface->name, get_name(func));
 344   indent++;
 345   print_proxy( "IRpcStubBuffer* This,\n");
 346   print_proxy( "IRpcChannelBuffer *_pRpcChannelBuffer,\n");
 347   print_proxy( "PRPC_MESSAGE _pRpcMessage,\n");
 348   print_proxy( "DWORD* _pdwStubPhase)\n");
 349   indent--;
 350   print_proxy( "{\n");
 351   indent++;
 352   print_proxy( "struct __frame_%s_%s_Stub __f, * const __frame = &__f;\n\n",
 353                iface->name, get_name(func) );
 354
 355   print_proxy("__frame->_This = (%s*)((CStdStubBuffer*)This)->pvServerObject;\n\n", iface->name);
 356
 357   /* FIXME: trace */
 358
 359   print_proxy("NdrStubInitialize(_pRpcMessage, &__frame->_StubMsg, &Object_StubDesc, _pRpcChannelBuffer);\n");
 360   fprintf(proxy, "\n");
 361   print_proxy( "RpcExceptionInit( 0, __finally_%s_%s_Stub );\n", iface->name, get_name(func) );
 362
 363   write_parameters_init(proxy, indent, func, "__frame->");
 364
 365   print_proxy("RpcTryFinally\n");
 366   print_proxy("{\n");
 367   indent++;
 368   if (has_full_pointer)
 369     write_full_pointer_init(proxy, indent, func, TRUE);
 370   print_proxy("if ((_pRpcMessage->DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 371   indent++;
 372   print_proxy("NdrConvert( &__frame->_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 373   indent--;
 374   fprintf(proxy, "\n");
 375
 376   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_IN, PHASE_UNMARSHAL);
 377   fprintf(proxy, "\n");
 378
 379   assign_stub_out_args( proxy, indent, func, "__frame->" );
 380
 381   print_proxy("*_pdwStubPhase = STUB_CALL_SERVER;\n");
 382   fprintf(proxy, "\n");
 383   print_proxy( "%s", has_ret ? "__frame->_RetVal = " : "" );
 384   if (cas) fprintf(proxy, "%s_%s_Stub", iface->name, cas);
 385   else fprintf(proxy, "__frame->_This->lpVtbl->%s", get_name(func));
 386   fprintf(proxy, "(__frame->_This");
 387
 388   if (type_function_get_args(func->declspec.type))
 389   {
 390       LIST_FOR_EACH_ENTRY( arg, type_function_get_args(func->declspec.type), const var_t, entry )
 391           fprintf(proxy, ", %s__frame->%s", is_array(arg->declspec.type) && !type_array_is_decl_as_ptr(arg->declspec.type) ? "*" :"" , arg->name);
 392   }
 393   fprintf(proxy, ");\n");
 394   fprintf(proxy, "\n");
 395   print_proxy("*_pdwStubPhase = STUB_MARSHAL;\n");
 396   fprintf(proxy, "\n");
 397
 398   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_BUFFERSIZE);
 399
 400   if (!is_void(type_function_get_rettype(func->declspec.type)))
 401     write_remoting_arguments(proxy, indent, func, "__frame->", PASS_RETURN, PHASE_BUFFERSIZE);
 402
 403   print_proxy("NdrStubGetBuffer(This, _pRpcChannelBuffer, &__frame->_StubMsg);\n");
 404
 405   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_MARSHAL);
 406   fprintf(proxy, "\n");
 407
 408   /* marshall the return value */
 409   if (!is_void(type_function_get_rettype(func->declspec.type)))
 410     write_remoting_arguments(proxy, indent, func, "__frame->", PASS_RETURN, PHASE_MARSHAL);
 411
 412   indent--;
 413   print_proxy("}\n");
 414   print_proxy("RpcFinally\n");
 415   print_proxy("{\n");
 416   indent++;
 417   print_proxy( "__finally_%s_%s_Stub( __frame );\n", iface->name, get_name(func) );
 418   indent--;
 419   print_proxy("}\n");
 420   print_proxy("RpcEndFinally\n");
 421
 422   print_proxy("_pRpcMessage->BufferLength = __frame->_StubMsg.Buffer - (unsigned char *)_pRpcMessage->Buffer;\n");
 423   indent--;
 424
 425   print_proxy("}\n");
 426   print_proxy("\n");
 427 }
 428
 429 static void gen_stub_thunk( type_t *iface, const var_t *func, unsigned int proc_offset )
 430 {
 431     int has_ret = !is_void( type_function_get_rettype( func->declspec.type ));
 432     const var_t *arg, *callas = is_callas( func->attrs );
 433     const var_list_t *args = type_function_get_args( func->declspec.type );
 434
 435     indent = 0;
 436     print_proxy( "void __RPC_API %s_%s_Thunk( PMIDL_STUB_MESSAGE pStubMsg )\n",
 437                  iface->name, get_name(func) );
 438     print_proxy( "{\n");
 439     indent++;
 440     write_func_param_struct( proxy, iface, func->declspec.type,
 441                              "*pParamStruct = (struct _PARAM_STRUCT *)pStubMsg->StackTop", has_ret );
 442     print_proxy( "%s%s_%s_Stub( pParamStruct->This",
 443                  has_ret ? "pParamStruct->_RetVal = " : "", iface->name, callas->name );
 444     indent++;
 445     if (args) LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 446     {
 447         fprintf( proxy, ",\n%*spParamStruct->%s", 4 * indent, "", arg->name );
 448     }
 449     fprintf( proxy, " );\n" );
 450     indent--;
 451     indent--;
 452     print_proxy( "}\n\n");
 453 }
 454
 455 int count_methods(const type_t *iface)
 456 {
 457     const statement_t *stmt;
 458     int count = 0;
 459
 460     if (type_iface_get_inherit(iface))
 461         count = count_methods(type_iface_get_inherit(iface));
 462
 463     STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 464         const var_t *func = stmt->u.var;
 465         if (!is_callas(func->attrs)) count++;
 466     }
 467     return count;
 468 }
 469
 470 static const statement_t * get_callas_source(const type_t * iface, const var_t * def)
 471 {
 472   const statement_t * source;
 473   STATEMENTS_FOR_EACH_FUNC( source, type_iface_get_stmts(iface)) {
 474     const var_t * cas = is_callas(source->u.var->attrs );
 475     if (cas && !strcmp(def->name, cas->name))
 476       return source;
 477   }
 478   return NULL;
 479 }
 480
 481 static void write_proxy_procformatstring_offsets( const type_t *iface, int skip )
 482 {
 483     const statement_t *stmt;
 484
 485     if (type_iface_get_inherit(iface))
 486         write_proxy_procformatstring_offsets( type_iface_get_inherit(iface), need_delegation(iface));
 487     else
 488         return;
 489
 490     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
 491     {
 492         const var_t *func = stmt->u.var;
 493         int missing = 0;
 494
 495         if (is_callas(func->attrs)) continue;
 496         if (is_local(func->attrs))
 497         {
 498             const statement_t * callas_source = get_callas_source(iface, func);
 499             if (!callas_source)
 500                 missing = 1;
 501             else
 502                 func = callas_source->u.var;
 503         }
 504         if (skip || missing)
 505             print_proxy( "(unsigned short)-1,  /* %s::%s */\n", iface->name, get_name(func));
 506         else
 507             print_proxy( "%u,  /* %s::%s */\n", func->procstring_offset, iface->name, get_name(func));
 508     }
 509 }
 510
 511 static int write_proxy_methods(type_t *iface, int skip)
 512 {
 513   const statement_t *stmt;
 514   int i = 0;
 515
 516   if (type_iface_get_inherit(iface))
 517     i = write_proxy_methods(type_iface_get_inherit(iface),
 518                             need_delegation(iface));
 519   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 520     const var_t *func = stmt->u.var;
 521     if (!is_callas(func->attrs)) {
 522       if (skip || (is_local(func->attrs) && !get_callas_source(iface, func)))
 523           print_proxy( "0,  /* %s::%s */\n", iface->name, get_name(func));
 524       else if (is_interpreted_func( iface, func ) &&
 525                get_stub_mode() == MODE_Oif &&
 526                !is_local( func->attrs ) &&
 527                type_iface_get_inherit(iface))
 528           print_proxy( "(void *)-1,  /* %s::%s */\n", iface->name, get_name(func));
 529       else
 530           print_proxy( "%s_%s_Proxy,\n", iface->name, get_name(func));
 531       i++;
 532     }
 533   }
 534   return i;
 535 }
 536
 537 static int write_stub_methods(type_t *iface, int skip)
 538 {
 539   const statement_t *stmt;
 540   int i = 0;
 541
 542   if (type_iface_get_inherit(iface))
 543     i = write_stub_methods(type_iface_get_inherit(iface), need_delegation(iface));
 544   else
 545     return i; /* skip IUnknown */
 546
 547   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 548     const var_t *func = stmt->u.var;
 549     if (!is_callas(func->attrs)) {
 550       int missing = 0;
 551       const char * fname = get_name(func);
 552       if(is_local(func->attrs)) {
 553         const statement_t * callas_source = get_callas_source(iface, func);
 554         if(!callas_source)
 555           missing = 1;
 556         else
 557           fname = get_name(callas_source->u.var);
 558       }
 559       if (i) fprintf(proxy,",\n");
 560       if (skip || missing) print_proxy("STUB_FORWARDING_FUNCTION");
 561       else if (is_interpreted_func( iface, func ))
 562           print_proxy( "(PRPC_STUB_FUNCTION)%s", get_stub_mode() == MODE_Oif ? "NdrStubCall2" : "NdrStubCall" );
 563       else print_proxy( "%s_%s_Stub", iface->name, fname);
 564       i++;
 565     }
 566   }
 567   return i;
 568 }
 569
 570 static void write_thunk_methods( type_t *iface, int skip )
 571 {
 572     const statement_t *stmt;
 573
 574     if (type_iface_get_inherit( iface ))
 575         write_thunk_methods( type_iface_get_inherit(iface), need_delegation(iface) );
 576     else
 577         return; /* skip IUnknown */
 578
 579     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
 580     {
 581         var_t *func = stmt->u.var;
 582         const statement_t * callas_source = NULL;
 583
 584         if (is_callas(func->attrs)) continue;
 585         if (is_local(func->attrs)) callas_source = get_callas_source(iface, func);
 586
 587         if (!skip && callas_source && is_interpreted_func( iface, func ))
 588             print_proxy( "%s_%s_Thunk,\n", iface->name, get_name(callas_source->u.var) );
 589         else
 590             print_proxy( "0, /* %s::%s */\n", iface->name, get_name(func) );
 591     }
 592 }
 593
 594 static void write_proxy(type_t *iface, unsigned int *proc_offset)
 595 {
 596   int count;
 597   const statement_t *stmt;
 598   int first_func = 1;
 599   int needs_stub_thunks = 0;
 600   int needs_inline_stubs = need_inline_stubs( iface ) || need_delegation( iface );
 601
 602   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 603     var_t *func = stmt->u.var;
 604     if (first_func) {
 605       fprintf(proxy, "/*****************************************************************************\n");
 606       fprintf(proxy, " * %s interface\n", iface->name);
 607       fprintf(proxy, " */\n");
 608       first_func = 0;
 609     }
 610     if (!is_local(func->attrs)) {
 611       const var_t *cas = is_callas(func->attrs);
 612       const char *cname = cas ? cas->name : NULL;
 613       int idx = func->func_idx;
 614       if (cname) {
 615           const statement_t *stmt2;
 616           STATEMENTS_FOR_EACH_FUNC(stmt2, type_iface_get_stmts(iface)) {
 617               const var_t *m = stmt2->u.var;
 618               if (!strcmp(m->name, cname))
 619               {
 620                   idx = m->func_idx;
 621                   break;
 622               }
 623           }
 624       }
 625       func->procstring_offset = *proc_offset;
 626       gen_proxy(iface, func, idx, *proc_offset);
 627       gen_stub(iface, func, cname, *proc_offset);
 628       if (cas && is_interpreted_func( iface, func ))
 629       {
 630           needs_stub_thunks = 1;
 631           gen_stub_thunk(iface, func, *proc_offset);
 632       }
 633       *proc_offset += get_size_procformatstring_func( iface, func );
 634     }
 635   }
 636
 637   count = count_methods(iface);
 638
 639   print_proxy( "static const unsigned short %s_FormatStringOffsetTable[] =\n", iface->name );
 640   print_proxy( "{\n" );
 641   indent++;
 642   write_proxy_procformatstring_offsets( iface, 0 );
 643   indent--;
 644   print_proxy( "};\n\n" );
 645
 646   /* proxy info */
 647   if (get_stub_mode() == MODE_Oif)
 648   {
 649       print_proxy( "static const MIDL_STUBLESS_PROXY_INFO %s_ProxyInfo =\n", iface->name );
 650       print_proxy( "{\n" );
 651       indent++;
 652       print_proxy( "&Object_StubDesc,\n" );
 653       print_proxy( "__MIDL_ProcFormatString.Format,\n" );
 654       print_proxy( "&%s_FormatStringOffsetTable[-3],\n", iface->name );
 655       print_proxy( "0,\n" );
 656       print_proxy( "0,\n" );
 657       print_proxy( "0\n" );
 658       indent--;
 659       print_proxy( "};\n\n" );
 660   }
 661
 662   /* proxy vtable */
 663   print_proxy( "static %sCINTERFACE_PROXY_VTABLE(%d) _%sProxyVtbl =\n",
 664                (get_stub_mode() != MODE_Os || need_delegation_indirect(iface)) ? "" : "const ",
 665                count, iface->name);
 666   print_proxy( "{\n");
 667   indent++;
 668   print_proxy( "{\n");
 669   indent++;
 670   if (get_stub_mode() == MODE_Oif) print_proxy( "&%s_ProxyInfo,\n", iface->name );
 671   print_proxy( "&IID_%s,\n", iface->name);
 672   indent--;
 673   print_proxy( "},\n");
 674   print_proxy( "{\n");
 675   indent++;
 676   write_proxy_methods(iface, FALSE);
 677   indent--;
 678   print_proxy( "}\n");
 679   indent--;
 680   print_proxy( "};\n\n");
 681
 682   /* stub thunk table */
 683   if (needs_stub_thunks)
 684   {
 685       print_proxy( "static const STUB_THUNK %s_StubThunkTable[] =\n", iface->name);
 686       print_proxy( "{\n");
 687       indent++;
 688       write_thunk_methods( iface, 0 );
 689       indent--;
 690       print_proxy( "};\n\n");
 691   }
 692
 693   /* server info */
 694   print_proxy( "static const MIDL_SERVER_INFO %s_ServerInfo =\n", iface->name );
 695   print_proxy( "{\n" );
 696   indent++;
 697   print_proxy( "&Object_StubDesc,\n" );
 698   print_proxy( "0,\n" );
 699   print_proxy( "__MIDL_ProcFormatString.Format,\n" );
 700   print_proxy( "&%s_FormatStringOffsetTable[-3],\n", iface->name );
 701   if (needs_stub_thunks)
 702       print_proxy( "&%s_StubThunkTable[-3],\n", iface->name );
 703   else
 704       print_proxy( "0,\n" );
 705   print_proxy( "0,\n" );
 706   print_proxy( "0,\n" );
 707   print_proxy( "0\n" );
 708   indent--;
 709   print_proxy( "};\n\n" );
 710
 711   /* stub vtable */
 712   if (needs_inline_stubs)
 713   {
 714       print_proxy( "static const PRPC_STUB_FUNCTION %s_table[] =\n", iface->name);
 715       print_proxy( "{\n");
 716       indent++;
 717       write_stub_methods(iface, FALSE);
 718       fprintf(proxy, "\n");
 719       indent--;
 720       fprintf(proxy, "};\n\n");
 721   }
 722   print_proxy( "static %sCInterfaceStubVtbl _%sStubVtbl =\n",
 723                need_delegation_indirect(iface) ? "" : "const ", iface->name);
 724   print_proxy( "{\n");
 725   indent++;
 726   print_proxy( "{\n");
 727   indent++;
 728   print_proxy( "&IID_%s,\n", iface->name);
 729   print_proxy( "&%s_ServerInfo,\n", iface->name );
 730   print_proxy( "%d,\n", count);
 731   if (needs_inline_stubs) print_proxy( "&%s_table[-3]\n", iface->name );
 732   else print_proxy( "0\n" );
 733   indent--;
 734   print_proxy( "},\n");
 735   print_proxy( "{\n");
 736   indent++;
 737   print_proxy( "%s_%s\n",
 738                type_iface_get_async_iface(iface) == iface ? "CStdAsyncStubBuffer" : "CStdStubBuffer",
 739                need_delegation_indirect(iface) ? "DELEGATING_METHODS" : "METHODS");
 740   indent--;
 741   print_proxy( "}\n");
 742   indent--;
 743   print_proxy( "};\n");
 744   print_proxy( "\n");
 745 }
 746
 747 static int does_any_iface(const statement_list_t *stmts, type_pred_t pred)
 748 {
 749   const statement_t *stmt;
 750
 751   if (stmts)
 752     LIST_FOR_EACH_ENTRY(stmt, stmts, const statement_t, entry)
 753     {
 754       if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
 755       {
 756         if (pred(stmt->u.type))
 757           return TRUE;
 758       }
 759     }
 760
 761   return FALSE;
 762 }
 763
 764 int need_proxy(const type_t *iface)
 765 {
 766     if (!is_object( iface )) return 0;
 767     if (is_local( iface->attrs )) return 0;
 768     if (is_attr( iface->attrs, ATTR_DISPINTERFACE )) return 0;
 769     return 1;
 770 }
 771
 772 int need_stub(const type_t *iface)
 773 {
 774   return !is_object(iface) && !is_local(iface->attrs);
 775 }
 776
 777 int need_proxy_file(const statement_list_t *stmts)
 778 {
 779     return does_any_iface(stmts, need_proxy);
 780 }
 781
 782 int need_proxy_delegation(const statement_list_t *stmts)
 783 {
 784     return does_any_iface(stmts, need_delegation);
 785 }
 786
 787 int need_inline_stubs(const type_t *iface)
 788 {
 789     const statement_t *stmt;
 790
 791     if (get_stub_mode() == MODE_Os) return 1;
 792
 793     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
 794     {
 795         const var_t *func = stmt->u.var;
 796         if (is_local( func->attrs )) continue;
 797         if (!is_interpreted_func( iface, func )) return 1;
 798     }
 799     return 0;
 800 }
 801
 802 static int need_proxy_and_inline_stubs(const type_t *iface)
 803 {
 804     const statement_t *stmt;
 805
 806     if (!need_proxy( iface )) return 0;
 807     if (get_stub_mode() == MODE_Os) return 1;
 808
 809     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
 810     {
 811         const var_t *func = stmt->u.var;
 812         if (is_local( func->attrs )) continue;
 813         if (!is_interpreted_func( iface, func )) return 1;
 814     }
 815     return 0;
 816 }
 817
 818 int need_stub_files(const statement_list_t *stmts)
 819 {
 820   return does_any_iface(stmts, need_stub);
 821 }
 822
 823 int need_inline_stubs_file(const statement_list_t *stmts)
 824 {
 825   return does_any_iface(stmts, need_inline_stubs);
 826 }
 827
 828 static void write_proxy_stmts(const statement_list_t *stmts, unsigned int *proc_offset)
 829 {
 830   const statement_t *stmt;
 831   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 832   {
 833     if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
 834     {
 835       type_t *iface = stmt->u.type;
 836       if (need_proxy(iface))
 837       {
 838         write_proxy(iface, proc_offset);
 839         if (type_iface_get_async_iface(iface))
 840           write_proxy(type_iface_get_async_iface(iface), proc_offset);
 841       }
 842     }
 843   }
 844 }
 845
 846 static int cmp_iid( const void *ptr1, const void *ptr2 )
 847 {
 848     const type_t * const *iface1 = ptr1;
 849     const type_t * const *iface2 = ptr2;
 850     const struct uuid *uuid1 = get_attrp( (*iface1)->attrs, ATTR_UUID );
 851     const struct uuid *uuid2 = get_attrp( (*iface2)->attrs, ATTR_UUID );
 852     return memcmp( uuid1, uuid2, sizeof(*uuid1) );
 853 }
 854
 855 static void build_iface_list( const statement_list_t *stmts, type_t **ifaces[], int *count )
 856 {
 857     const statement_t *stmt;
 858
 859     if (!stmts) return;
 860     LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 861     {
 862         if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
 863         {
 864             type_t *iface = stmt->u.type;
 865             if (type_iface_get_inherit(iface) && need_proxy(iface))
 866             {
 867                 *ifaces = xrealloc( *ifaces, (*count + 1) * sizeof(**ifaces) );
 868                 (*ifaces)[(*count)++] = iface;
 869                 if (type_iface_get_async_iface(iface))
 870                 {
 871                     iface = type_iface_get_async_iface(iface);
 872                     *ifaces = xrealloc( *ifaces, (*count + 1) * sizeof(**ifaces) );
 873                     (*ifaces)[(*count)++] = iface;
 874                 }
 875             }
 876         }
 877     }
 878 }
 879
 880 static type_t **sort_interfaces( const statement_list_t *stmts, int *count )
 881 {
 882     type_t **ifaces = NULL;
 883
 884     *count = 0;
 885     build_iface_list( stmts, &ifaces, count );
 886     qsort( ifaces, *count, sizeof(*ifaces), cmp_iid );
 887     return ifaces;
 888 }
 889
 890 static void write_proxy_routines(const statement_list_t *stmts)
 891 {
 892   int expr_eval_routines;
 893   unsigned int proc_offset = 0;
 894   char *file_id = proxy_token;
 895   int i, count, have_baseiid = 0;
 896   unsigned int table_version;
 897   type_t **interfaces;
 898   const type_t * delegate_to;
 899
 900   print_proxy( "#ifndef __REDQ_RPCPROXY_H_VERSION__\n");
 901   print_proxy( "#define __REQUIRED_RPCPROXY_H_VERSION__ %u\n", get_stub_mode() == MODE_Oif ? 475 : 440);
 902   print_proxy( "#endif\n");
 903   print_proxy( "\n");
 904   if (get_stub_mode() == MODE_Oif) print_proxy( "#define USE_STUBLESS_PROXY\n");
 905   print_proxy( "#include \"rpcproxy.h\"\n");
 906   print_proxy( "#ifndef __RPCPROXY_H_VERSION__\n");
 907   print_proxy( "#error This code needs a newer version of rpcproxy.h\n");
 908   print_proxy( "#endif /* __RPCPROXY_H_VERSION__ */\n");
 909   print_proxy( "\n");
 910   print_proxy( "#include \"%s\"\n", header_name);
 911   print_proxy( "\n");
 912
 913   if (does_any_iface(stmts, need_proxy_and_inline_stubs))
 914   {
 915       write_exceptions( proxy );
 916       print_proxy( "\n");
 917       print_proxy( "struct __proxy_frame\n");
 918       print_proxy( "{\n");
 919       print_proxy( "    __DECL_EXCEPTION_FRAME\n");
 920       print_proxy( "    MIDL_STUB_MESSAGE _StubMsg;\n");
 921       print_proxy( "    void             *This;\n");
 922       print_proxy( "};\n");
 923       print_proxy( "\n");
 924       print_proxy("static int __proxy_filter( struct __proxy_frame *__frame )\n");
 925       print_proxy( "{\n");
 926       print_proxy( "    return (__frame->_StubMsg.dwStubPhase != PROXY_SENDRECEIVE);\n");
 927       print_proxy( "}\n");
 928       print_proxy( "\n");
 929   }
 930
 931   write_formatstringsdecl(proxy, indent, stmts, need_proxy);
 932   write_stubdescproto();
 933   write_proxy_stmts(stmts, &proc_offset);
 934
 935   expr_eval_routines = write_expr_eval_routines(proxy, proxy_token);
 936   if (expr_eval_routines)
 937       write_expr_eval_routine_list(proxy, proxy_token);
 938   write_user_quad_list(proxy);
 939   write_stubdesc(expr_eval_routines);
 940
 941   print_proxy( "#if !defined(__RPC_WIN%u__)\n", pointer_size == 8 ? 64 : 32);
 942   print_proxy( "#error Invalid build platform for this proxy.\n");
 943   print_proxy( "#endif\n");
 944   print_proxy( "\n");
 945   write_procformatstring(proxy, stmts, need_proxy);
 946   write_typeformatstring(proxy, stmts, need_proxy);
 947
 948   interfaces = sort_interfaces(stmts, &count);
 949   fprintf(proxy, "static const CInterfaceProxyVtbl* const _%s_ProxyVtblList[] =\n", file_id);
 950   fprintf(proxy, "{\n");
 951   for (i = 0; i < count; i++)
 952       fprintf(proxy, "    (const CInterfaceProxyVtbl*)&_%sProxyVtbl,\n", interfaces[i]->name);
 953   fprintf(proxy, "    0\n");
 954   fprintf(proxy, "};\n");
 955   fprintf(proxy, "\n");
 956
 957   fprintf(proxy, "static const CInterfaceStubVtbl* const _%s_StubVtblList[] =\n", file_id);
 958   fprintf(proxy, "{\n");
 959   for (i = 0; i < count; i++)
 960       fprintf(proxy, "    &_%sStubVtbl,\n", interfaces[i]->name);
 961   fprintf(proxy, "    0\n");
 962   fprintf(proxy, "};\n");
 963   fprintf(proxy, "\n");
 964
 965   fprintf(proxy, "static PCInterfaceName const _%s_InterfaceNamesList[] =\n", file_id);
 966   fprintf(proxy, "{\n");
 967   for (i = 0; i < count; i++)
 968       fprintf(proxy, "    \"%s\",\n", interfaces[i]->name);
 969   fprintf(proxy, "    0\n");
 970   fprintf(proxy, "};\n");
 971   fprintf(proxy, "\n");
 972
 973   for (i = 0; i < count; i++)
 974       if ((have_baseiid = get_delegation_indirect( interfaces[i], NULL ))) break;
 975
 976   if (have_baseiid)
 977   {
 978       fprintf(proxy, "static const IID * _%s_BaseIIDList[] =\n", file_id);
 979       fprintf(proxy, "{\n");
 980       for (i = 0; i < count; i++)
 981       {
 982           if (get_delegation_indirect(interfaces[i], &delegate_to))
 983               fprintf( proxy, "    &IID_%s,  /* %s */\n", delegate_to->name, interfaces[i]->name );
 984           else
 985               fprintf( proxy, "    0,\n" );
 986       }
 987       fprintf(proxy, "    0\n");
 988       fprintf(proxy, "};\n");
 989       fprintf(proxy, "\n");
 990   }
 991
 992   fprintf(proxy, "static int __stdcall _%s_IID_Lookup(const IID* pIID, int* pIndex)\n", file_id);
 993   fprintf(proxy, "{\n");
 994   fprintf(proxy, "    int low = 0, high = %d;\n", count - 1);
 995   fprintf(proxy, "\n");
 996   fprintf(proxy, "    while (low <= high)\n");
 997   fprintf(proxy, "    {\n");
 998   fprintf(proxy, "        int pos = (low + high) / 2;\n");
 999   fprintf(proxy, "        int res = IID_GENERIC_CHECK_IID(_%s, pIID, pos);\n", file_id);
1000   fprintf(proxy, "        if (!res) { *pIndex = pos; return 1; }\n");
1001   fprintf(proxy, "        if (res > 0) low = pos + 1;\n");
1002   fprintf(proxy, "        else high = pos - 1;\n");
1003   fprintf(proxy, "    }\n");
1004   fprintf(proxy, "    return 0;\n");
1005   fprintf(proxy, "}\n");
1006   fprintf(proxy, "\n");
1007
1008   table_version = get_stub_mode() == MODE_Oif ? 2 : 1;
1009   for (i = 0; i < count; i++)
1010   {
1011       if (type_iface_get_async_iface(interfaces[i]) != interfaces[i]) continue;
1012       if (table_version != 6)
1013       {
1014           fprintf(proxy, "static const IID *_AsyncInterfaceTable[] =\n");
1015           fprintf(proxy, "{\n");
1016           table_version = 6;
1017       }
1018       fprintf(proxy, "    &IID_%s,\n", interfaces[i]->name);
1019       fprintf(proxy, "    (IID*)(LONG_PTR)-1,\n");
1020   }
1021   if (table_version == 6)
1022   {
1023       fprintf(proxy, "    0\n");
1024       fprintf(proxy, "};\n");
1025       fprintf(proxy, "\n");
1026   }
1027
1028   fprintf(proxy, "const ExtendedProxyFileInfo %s_ProxyFileInfo DECLSPEC_HIDDEN =\n", file_id);
1029   fprintf(proxy, "{\n");
1030   fprintf(proxy, "    (const PCInterfaceProxyVtblList*)_%s_ProxyVtblList,\n", file_id);
1031   fprintf(proxy, "    (const PCInterfaceStubVtblList*)_%s_StubVtblList,\n", file_id);
1032   fprintf(proxy, "    _%s_InterfaceNamesList,\n", file_id);
1033   if (have_baseiid) fprintf(proxy, "    _%s_BaseIIDList,\n", file_id);
1034   else fprintf(proxy, "    0,\n");
1035   fprintf(proxy, "    _%s_IID_Lookup,\n", file_id);
1036   fprintf(proxy, "    %d,\n", count);
1037   fprintf(proxy, "    %u,\n", table_version);
1038   fprintf(proxy, "    %s,\n", table_version == 6 ? "_AsyncInterfaceTable" : "0");
1039   fprintf(proxy, "    0,\n");
1040   fprintf(proxy, "    0,\n");
1041   fprintf(proxy, "    0\n");
1042   fprintf(proxy, "};\n");
1043 }
1044
1045 void write_proxies(const statement_list_t *stmts)
1046 {
1047   if (!do_proxies) return;
1048   if (do_everything && !need_proxy_file(stmts)) return;
1049
1050   init_proxy(stmts);
1051   if(!proxy) return;
1052
1053   write_proxy_routines( stmts );
1054   fclose(proxy);
1055 }