tools/widl/proxy.c

   1 /*
   2  * IDL Compiler
   3  *
   4  * Copyright 2002 Ove Kaaven
   5  * Copyright 2004 Mike McCormack
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #ifdef HAVE_UNISTD_H
  28 # include <unistd.h>
  29 #endif
  30 #include <string.h>
  31 #include <ctype.h>
  32
  33 #include "widl.h"
  34 #include "utils.h"
  35 #include "parser.h"
  36 #include "header.h"
  37 #include "typegen.h"
  38 #include "expr.h"
  39
  40 #define END_OF_LIST(list)       \
  41   do {                          \
  42     if (list) {                 \
  43       while (NEXT_LINK(list))   \
  44         list = NEXT_LINK(list); \
  45     }                           \
  46   } while(0)
  47
  48 static FILE* proxy;
  49 static int indent = 0;
  50
  51 static void print_proxy( const char *format, ... ) __attribute__((format (printf, 1, 2)));
  52 static void print_proxy( const char *format, ... )
  53 {
  54   va_list va;
  55   va_start( va, format );
  56   print( proxy, indent, format, va );
  57   va_end( va );
  58 }
  59
  60 static void write_stubdescproto(void)
  61 {
  62   print_proxy( "static const MIDL_STUB_DESC Object_StubDesc;\n");
  63   print_proxy( "\n");
  64 }
  65
  66 static void write_stubdesc(int expr_eval_routines)
  67 {
  68   print_proxy( "static const MIDL_STUB_DESC Object_StubDesc =\n{\n");
  69   indent++;
  70   print_proxy( "0,\n");
  71   print_proxy( "NdrOleAllocate,\n");
  72   print_proxy( "NdrOleFree,\n");
  73   print_proxy( "{0}, 0, 0, %s, 0,\n", expr_eval_routines ? "ExprEvalRoutines" : "0");
  74   print_proxy( "__MIDL_TypeFormatString.Format,\n");
  75   print_proxy( "1, /* -error bounds_check flag */\n");
  76   print_proxy( "0x%x, /* Ndr library version */\n", get_stub_mode() == MODE_Oif ? 0x50002 : 0x10001);
  77   print_proxy( "0,\n");
  78   print_proxy( "0x50100a4, /* MIDL Version 5.1.164 */\n");
  79   print_proxy( "0,\n");
  80   print_proxy("%s,\n", list_empty(&user_type_list) ? "0" : "UserMarshalRoutines");
  81   print_proxy( "0,  /* notify & notify_flag routine table */\n");
  82   print_proxy( "1,  /* Flags */\n");
  83   print_proxy( "0,  /* Reserved3 */\n");
  84   print_proxy( "0,  /* Reserved4 */\n");
  85   print_proxy( "0   /* Reserved5 */\n");
  86   indent--;
  87   print_proxy( "};\n");
  88   print_proxy( "\n");
  89 }
  90
  91 static void init_proxy(const statement_list_t *stmts)
  92 {
  93   if (proxy) return;
  94   if(!(proxy = fopen(proxy_name, "w")))
  95     error("Could not open %s for output\n", proxy_name);
  96   print_proxy( "/*** Autogenerated by WIDL %s from %s - Do not edit ***/\n", PACKAGE_VERSION, input_name);
  97   print_proxy( "\n");
  98   print_proxy( "#define __midl_proxy\n");
  99   print_proxy( "#include \"objbase.h\"\n");
 100   print_proxy( "\n");
 101   print_proxy( "#ifndef DECLSPEC_HIDDEN\n");
 102   print_proxy( "#define DECLSPEC_HIDDEN\n");
 103   print_proxy( "#endif\n");
 104   print_proxy( "\n");
 105 }
 106
 107 static void clear_output_vars( const var_list_t *args )
 108 {
 109   const var_t *arg;
 110
 111   if (!args) return;
 112   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 113   {
 114       if (is_attr(arg->attrs, ATTR_IN)) continue;
 115       if (!is_attr(arg->attrs, ATTR_OUT)) continue;
 116       if (is_ptr(arg->type))
 117       {
 118           if (type_get_type(type_pointer_get_ref(arg->type)) == TYPE_BASIC) continue;
 119           if (type_get_type(type_pointer_get_ref(arg->type)) == TYPE_ENUM) continue;
 120       }
 121       print_proxy( "if (%s) MIDL_memset( %s, 0, sizeof( *%s ));\n", arg->name, arg->name, arg->name );
 122   }
 123 }
 124
 125 static int need_delegation(const type_t *iface)
 126 {
 127     const type_t *parent = type_iface_get_inherit( iface );
 128     return parent && type_iface_get_inherit(parent) && (parent->ignore || is_local( parent->attrs ));
 129 }
 130
 131 static int get_delegation_indirect(const type_t *iface, const type_t ** delegate_to)
 132 {
 133   const type_t * cur_iface;
 134   for (cur_iface = iface; cur_iface != NULL; cur_iface = type_iface_get_inherit(cur_iface))
 135     if (need_delegation(cur_iface))
 136     {
 137       if(delegate_to)
 138         *delegate_to = type_iface_get_inherit(cur_iface);
 139       return 1;
 140     }
 141   return 0;
 142 }
 143
 144 static int need_delegation_indirect(const type_t *iface)
 145 {
 146   return get_delegation_indirect(iface, NULL);
 147 }
 148
 149 static void free_variable( const var_t *arg, const char *local_var_prefix )
 150 {
 151   unsigned int type_offset = arg->typestring_offset;
 152   type_t *type = arg->type;
 153
 154   write_parameter_conf_or_var_exprs(proxy, indent, local_var_prefix, PHASE_FREE, arg, FALSE);
 155
 156   switch (typegen_detect_type(type, arg->attrs, TDT_IGNORE_STRINGS))
 157   {
 158   case TGT_ENUM:
 159   case TGT_BASIC:
 160     break;
 161
 162   case TGT_STRUCT:
 163     if (get_struct_fc(type) != RPC_FC_STRUCT)
 164       print_proxy("/* FIXME: %s code for %s struct type 0x%x missing */\n", __FUNCTION__, arg->name, get_struct_fc(type) );
 165     break;
 166
 167   case TGT_IFACE_POINTER:
 168   case TGT_POINTER:
 169   case TGT_ARRAY:
 170     print_proxy( "NdrClearOutParameters( &__frame->_StubMsg, ");
 171     fprintf(proxy, "&__MIDL_TypeFormatString.Format[%u], ", type_offset );
 172     fprintf(proxy, "(void *)%s );\n", arg->name );
 173     break;
 174
 175   default:
 176     print_proxy("/* FIXME: %s code for %s type %d missing */\n", __FUNCTION__, arg->name, type_get_type(type) );
 177   }
 178 }
 179
 180 static void proxy_free_variables( var_list_t *args, const char *local_var_prefix )
 181 {
 182   const var_t *arg;
 183
 184   if (!args) return;
 185   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 186     if (is_attr(arg->attrs, ATTR_OUT))
 187     {
 188       free_variable( arg, local_var_prefix );
 189       fprintf(proxy, "\n");
 190     }
 191 }
 192
 193 static void gen_proxy(type_t *iface, const var_t *func, int idx,
 194                       unsigned int proc_offset)
 195 {
 196   var_t *retval = type_function_get_retval(func->type);
 197   int has_ret = !is_void(retval->type);
 198   int has_full_pointer = is_full_pointer_function(func);
 199   const char *callconv = get_attrp(func->type->attrs, ATTR_CALLCONV);
 200   const var_list_t *args = type_get_function_args(func->type);
 201   if (!callconv) callconv = "STDMETHODCALLTYPE";
 202
 203   indent = 0;
 204   if (is_interpreted_func( iface, func ))
 205   {
 206       if (get_stub_mode() == MODE_Oif && !is_callas( func->attrs )) return;
 207       write_type_decl_left(proxy, retval->type);
 208       print_proxy( " %s %s_%s_Proxy(\n", callconv, iface->name, get_name(func));
 209       write_args(proxy, args, iface->name, 1, TRUE);
 210       print_proxy( ")\n");
 211       write_client_call_routine( proxy, iface, func, "Object", proc_offset );
 212       return;
 213   }
 214   print_proxy( "static void __finally_%s_%s_Proxy( struct __proxy_frame *__frame )\n",
 215                iface->name, get_name(func) );
 216   print_proxy( "{\n");
 217   indent++;
 218   if (has_full_pointer) write_full_pointer_free(proxy, indent, func);
 219   print_proxy( "NdrProxyFreeBuffer( __frame->This, &__frame->_StubMsg );\n" );
 220   indent--;
 221   print_proxy( "}\n");
 222   print_proxy( "\n");
 223
 224   write_type_decl_left(proxy, retval->type);
 225   print_proxy( " %s %s_%s_Proxy(\n", callconv, iface->name, get_name(func));
 226   write_args(proxy, args, iface->name, 1, TRUE);
 227   print_proxy( ")\n");
 228   print_proxy( "{\n");
 229   indent ++;
 230   print_proxy( "struct __proxy_frame __f, * const __frame = &__f;\n" );
 231   /* local variables */
 232   if (has_ret) {
 233     print_proxy( "%s", "" );
 234     write_type_decl(proxy, retval->type, retval->name);
 235     fprintf( proxy, ";\n" );
 236   }
 237   print_proxy( "RPC_MESSAGE _RpcMessage;\n" );
 238   if (has_ret) {
 239     if (decl_indirect(retval->type))
 240         print_proxy("void *_p_%s = &%s;\n", retval->name, retval->name);
 241   }
 242   print_proxy( "\n");
 243
 244   print_proxy( "RpcExceptionInit( __proxy_filter, __finally_%s_%s_Proxy );\n", iface->name, get_name(func) );
 245   print_proxy( "__frame->This = This;\n" );
 246
 247   if (has_full_pointer)
 248     write_full_pointer_init(proxy, indent, func, FALSE);
 249
 250   /* FIXME: trace */
 251   clear_output_vars( type_get_function_args(func->type) );
 252
 253   print_proxy( "RpcTryExcept\n" );
 254   print_proxy( "{\n" );
 255   indent++;
 256   print_proxy( "NdrProxyInitialize(This, &_RpcMessage, &__frame->_StubMsg, &Object_StubDesc, %d);\n", idx);
 257   write_pointer_checks( proxy, indent, func );
 258
 259   print_proxy( "RpcTryFinally\n" );
 260   print_proxy( "{\n" );
 261   indent++;
 262
 263   write_remoting_arguments(proxy, indent, func, "", PASS_IN, PHASE_BUFFERSIZE);
 264
 265   print_proxy( "NdrProxyGetBuffer(This, &__frame->_StubMsg);\n" );
 266
 267   write_remoting_arguments(proxy, indent, func, "", PASS_IN, PHASE_MARSHAL);
 268
 269   print_proxy( "NdrProxySendReceive(This, &__frame->_StubMsg);\n" );
 270   fprintf(proxy, "\n");
 271   print_proxy( "__frame->_StubMsg.BufferStart = _RpcMessage.Buffer;\n" );
 272   print_proxy( "__frame->_StubMsg.BufferEnd   = __frame->_StubMsg.BufferStart + _RpcMessage.BufferLength;\n\n" );
 273
 274   print_proxy("if ((_RpcMessage.DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 275   indent++;
 276   print_proxy("NdrConvert( &__frame->_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 277   indent--;
 278   fprintf(proxy, "\n");
 279
 280   write_remoting_arguments(proxy, indent, func, "", PASS_OUT, PHASE_UNMARSHAL);
 281
 282   if (has_ret)
 283   {
 284       if (decl_indirect(retval->type))
 285           print_proxy("MIDL_memset(&%s, 0, sizeof(%s));\n", retval->name, retval->name);
 286       else if (is_ptr(retval->type) || is_array(retval->type))
 287           print_proxy("%s = 0;\n", retval->name);
 288       write_remoting_arguments(proxy, indent, func, "", PASS_RETURN, PHASE_UNMARSHAL);
 289   }
 290
 291   indent--;
 292   print_proxy( "}\n");
 293   print_proxy( "RpcFinally\n" );
 294   print_proxy( "{\n" );
 295   indent++;
 296   print_proxy( "__finally_%s_%s_Proxy( __frame );\n", iface->name, get_name(func) );
 297   indent--;
 298   print_proxy( "}\n");
 299   print_proxy( "RpcEndFinally\n" );
 300   indent--;
 301   print_proxy( "}\n" );
 302   print_proxy( "RpcExcept(__frame->_StubMsg.dwStubPhase != PROXY_SENDRECEIVE)\n" );
 303   print_proxy( "{\n" );
 304   if (has_ret) {
 305     indent++;
 306     proxy_free_variables( type_get_function_args(func->type), "" );
 307     print_proxy( "_RetVal = NdrProxyErrorHandler(RpcExceptionCode());\n" );
 308     indent--;
 309   }
 310   print_proxy( "}\n" );
 311   print_proxy( "RpcEndExcept\n" );
 312
 313   if (has_ret) {
 314     print_proxy( "return _RetVal;\n" );
 315   }
 316   indent--;
 317   print_proxy( "}\n");
 318   print_proxy( "\n");
 319 }
 320
 321 static void gen_stub(type_t *iface, const var_t *func, const char *cas,
 322                      unsigned int proc_offset)
 323 {
 324   const var_t *arg;
 325   int has_ret = !is_void(type_function_get_rettype(func->type));
 326   int has_full_pointer = is_full_pointer_function(func);
 327
 328   if (is_interpreted_func( iface, func )) return;
 329
 330   indent = 0;
 331   print_proxy( "struct __frame_%s_%s_Stub\n{\n", iface->name, get_name(func));
 332   indent++;
 333   print_proxy( "__DECL_EXCEPTION_FRAME\n" );
 334   print_proxy( "MIDL_STUB_MESSAGE _StubMsg;\n");
 335   print_proxy( "%s * _This;\n", iface->name );
 336   declare_stub_args( proxy, indent, func );
 337   indent--;
 338   print_proxy( "};\n\n" );
 339
 340   print_proxy( "static void __finally_%s_%s_Stub(", iface->name, get_name(func) );
 341   print_proxy( " struct __frame_%s_%s_Stub *__frame )\n{\n", iface->name, get_name(func) );
 342   indent++;
 343   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_FREE);
 344   if (has_full_pointer)
 345     write_full_pointer_free(proxy, indent, func);
 346   indent--;
 347   print_proxy( "}\n\n" );
 348
 349   print_proxy( "void __RPC_STUB %s_%s_Stub(\n", iface->name, get_name(func));
 350   indent++;
 351   print_proxy( "IRpcStubBuffer* This,\n");
 352   print_proxy( "IRpcChannelBuffer *_pRpcChannelBuffer,\n");
 353   print_proxy( "PRPC_MESSAGE _pRpcMessage,\n");
 354   print_proxy( "DWORD* _pdwStubPhase)\n");
 355   indent--;
 356   print_proxy( "{\n");
 357   indent++;
 358   print_proxy( "struct __frame_%s_%s_Stub __f, * const __frame = &__f;\n\n",
 359                iface->name, get_name(func) );
 360
 361   print_proxy("__frame->_This = (%s*)((CStdStubBuffer*)This)->pvServerObject;\n\n", iface->name);
 362
 363   /* FIXME: trace */
 364
 365   print_proxy("NdrStubInitialize(_pRpcMessage, &__frame->_StubMsg, &Object_StubDesc, _pRpcChannelBuffer);\n");
 366   fprintf(proxy, "\n");
 367   print_proxy( "RpcExceptionInit( 0, __finally_%s_%s_Stub );\n", iface->name, get_name(func) );
 368
 369   write_parameters_init(proxy, indent, func, "__frame->");
 370
 371   print_proxy("RpcTryFinally\n");
 372   print_proxy("{\n");
 373   indent++;
 374   if (has_full_pointer)
 375     write_full_pointer_init(proxy, indent, func, TRUE);
 376   print_proxy("if ((_pRpcMessage->DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 377   indent++;
 378   print_proxy("NdrConvert( &__frame->_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 379   indent--;
 380   fprintf(proxy, "\n");
 381
 382   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_IN, PHASE_UNMARSHAL);
 383   fprintf(proxy, "\n");
 384
 385   assign_stub_out_args( proxy, indent, func, "__frame->" );
 386
 387   print_proxy("*_pdwStubPhase = STUB_CALL_SERVER;\n");
 388   fprintf(proxy, "\n");
 389   print_proxy( "%s", has_ret ? "__frame->_RetVal = " : "" );
 390   if (cas) fprintf(proxy, "%s_%s_Stub", iface->name, cas);
 391   else fprintf(proxy, "__frame->_This->lpVtbl->%s", get_name(func));
 392   fprintf(proxy, "(__frame->_This");
 393
 394   if (type_get_function_args(func->type))
 395   {
 396       LIST_FOR_EACH_ENTRY( arg, type_get_function_args(func->type), const var_t, entry )
 397           fprintf(proxy, ", %s__frame->%s", is_array(arg->type) && !type_array_is_decl_as_ptr(arg->type) ? "*" :"" , arg->name);
 398   }
 399   fprintf(proxy, ");\n");
 400   fprintf(proxy, "\n");
 401   print_proxy("*_pdwStubPhase = STUB_MARSHAL;\n");
 402   fprintf(proxy, "\n");
 403
 404   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_BUFFERSIZE);
 405
 406   if (!is_void(type_function_get_rettype(func->type)))
 407     write_remoting_arguments(proxy, indent, func, "__frame->", PASS_RETURN, PHASE_BUFFERSIZE);
 408
 409   print_proxy("NdrStubGetBuffer(This, _pRpcChannelBuffer, &__frame->_StubMsg);\n");
 410
 411   write_remoting_arguments(proxy, indent, func, "__frame->", PASS_OUT, PHASE_MARSHAL);
 412   fprintf(proxy, "\n");
 413
 414   /* marshall the return value */
 415   if (!is_void(type_function_get_rettype(func->type)))
 416     write_remoting_arguments(proxy, indent, func, "__frame->", PASS_RETURN, PHASE_MARSHAL);
 417
 418   indent--;
 419   print_proxy("}\n");
 420   print_proxy("RpcFinally\n");
 421   print_proxy("{\n");
 422   indent++;
 423   print_proxy( "__finally_%s_%s_Stub( __frame );\n", iface->name, get_name(func) );
 424   indent--;
 425   print_proxy("}\n");
 426   print_proxy("RpcEndFinally\n");
 427
 428   print_proxy("_pRpcMessage->BufferLength = __frame->_StubMsg.Buffer - (unsigned char *)_pRpcMessage->Buffer;\n");
 429   indent--;
 430
 431   print_proxy("}\n");
 432   print_proxy("\n");
 433 }
 434
 435 static void gen_stub_thunk( type_t *iface, const var_t *func, unsigned int proc_offset )
 436 {
 437     int has_ret = !is_void( type_function_get_rettype( func->type ));
 438     const var_t *arg, *callas = is_callas( func->attrs );
 439     const var_list_t *args = type_get_function_args( func->type );
 440
 441     indent = 0;
 442     print_proxy( "void __RPC_API %s_%s_Thunk( PMIDL_STUB_MESSAGE pStubMsg )\n",
 443                  iface->name, get_name(func) );
 444     print_proxy( "{\n");
 445     indent++;
 446     write_func_param_struct( proxy, iface, func->type,
 447                              "*pParamStruct = (struct _PARAM_STRUCT *)pStubMsg->StackTop", has_ret );
 448     print_proxy( "%s%s_%s_Stub( pParamStruct->This",
 449                  has_ret ? "pParamStruct->_RetVal = " : "", iface->name, callas->name );
 450     indent++;
 451     if (args) LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 452     {
 453         fprintf( proxy, ",\n%*spParamStruct->%s", 4 * indent, "", arg->name );
 454     }
 455     fprintf( proxy, " );\n" );
 456     indent--;
 457     indent--;
 458     print_proxy( "}\n\n");
 459 }
 460
 461 int count_methods(const type_t *iface)
 462 {
 463     const statement_t *stmt;
 464     int count = 0;
 465
 466     if (type_iface_get_inherit(iface))
 467         count = count_methods(type_iface_get_inherit(iface));
 468
 469     STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 470         const var_t *func = stmt->u.var;
 471         if (!is_callas(func->attrs)) count++;
 472     }
 473     return count;
 474 }
 475
 476 static const statement_t * get_callas_source(const type_t * iface, const var_t * def)
 477 {
 478   const statement_t * source;
 479   STATEMENTS_FOR_EACH_FUNC( source, type_iface_get_stmts(iface)) {
 480     const var_t * cas = is_callas(source->u.var->attrs );
 481     if (cas && !strcmp(def->name, cas->name))
 482       return source;
 483   }
 484   return NULL;
 485 }
 486
 487 static void write_proxy_procformatstring_offsets( const type_t *iface, int skip )
 488 {
 489     const statement_t *stmt;
 490
 491     if (type_iface_get_inherit(iface))
 492         write_proxy_procformatstring_offsets( type_iface_get_inherit(iface), need_delegation(iface));
 493     else
 494         return;
 495
 496     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
 497     {
 498         const var_t *func = stmt->u.var;
 499         int missing = 0;
 500
 501         if (is_callas(func->attrs)) continue;
 502         if (is_local(func->attrs))
 503         {
 504             const statement_t * callas_source = get_callas_source(iface, func);
 505             if (!callas_source)
 506                 missing = 1;
 507             else
 508                 func = callas_source->u.var;
 509         }
 510         if (skip || missing)
 511             print_proxy( "(unsigned short)-1,  /* %s::%s */\n", iface->name, get_name(func));
 512         else
 513             print_proxy( "%u,  /* %s::%s */\n", func->procstring_offset, iface->name, get_name(func));
 514     }
 515 }
 516
 517 static int write_proxy_methods(type_t *iface, int skip)
 518 {
 519   const statement_t *stmt;
 520   int i = 0;
 521
 522   if (type_iface_get_inherit(iface))
 523     i = write_proxy_methods(type_iface_get_inherit(iface),
 524                             need_delegation(iface));
 525   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 526     const var_t *func = stmt->u.var;
 527     if (!is_callas(func->attrs)) {
 528       if (skip || (is_local(func->attrs) && !get_callas_source(iface, func)))
 529           print_proxy( "0,  /* %s::%s */\n", iface->name, get_name(func));
 530       else if (is_interpreted_func( iface, func ) &&
 531                !is_local( func->attrs ) &&
 532                type_iface_get_inherit(iface))
 533           print_proxy( "(void *)-1,  /* %s::%s */\n", iface->name, get_name(func));
 534       else
 535           print_proxy( "%s_%s_Proxy,\n", iface->name, get_name(func));
 536       i++;
 537     }
 538   }
 539   return i;
 540 }
 541
 542 static int write_stub_methods(type_t *iface, int skip)
 543 {
 544   const statement_t *stmt;
 545   int i = 0;
 546
 547   if (type_iface_get_inherit(iface))
 548     i = write_stub_methods(type_iface_get_inherit(iface), need_delegation(iface));
 549   else
 550     return i; /* skip IUnknown */
 551
 552   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 553     const var_t *func = stmt->u.var;
 554     if (!is_callas(func->attrs)) {
 555       int missing = 0;
 556       const char * fname = get_name(func);
 557       if(is_local(func->attrs)) {
 558         const statement_t * callas_source = get_callas_source(iface, func);
 559         if(!callas_source)
 560           missing = 1;
 561         else
 562           fname = get_name(callas_source->u.var);
 563       }
 564       if (i) fprintf(proxy,",\n");
 565       if (skip || missing) print_proxy("STUB_FORWARDING_FUNCTION");
 566       else if (is_interpreted_func( iface, func ))
 567           print_proxy( "(PRPC_STUB_FUNCTION)%s", get_stub_mode() == MODE_Oif ? "NdrStubCall2" : "NdrStubCall" );
 568       else print_proxy( "%s_%s_Stub", iface->name, fname);
 569       i++;
 570     }
 571   }
 572   return i;
 573 }
 574
 575 static void write_thunk_methods( type_t *iface, int skip )
 576 {
 577     const statement_t *stmt;
 578
 579     if (type_iface_get_inherit( iface ))
 580         write_thunk_methods( type_iface_get_inherit(iface), need_delegation(iface) );
 581     else
 582         return; /* skip IUnknown */
 583
 584     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
 585     {
 586         var_t *func = stmt->u.var;
 587         const statement_t * callas_source = NULL;
 588
 589         if (is_callas(func->attrs)) continue;
 590         if (is_local(func->attrs)) callas_source = get_callas_source(iface, func);
 591
 592         if (!skip && callas_source && is_interpreted_func( iface, func ))
 593             print_proxy( "%s_%s_Thunk,\n", iface->name, get_name(callas_source->u.var) );
 594         else
 595             print_proxy( "0, /* %s::%s */\n", iface->name, get_name(func) );
 596     }
 597 }
 598
 599 static void write_proxy(type_t *iface, unsigned int *proc_offset)
 600 {
 601   int count;
 602   const statement_t *stmt;
 603   int first_func = 1;
 604   int needs_stub_thunks = 0;
 605   int needs_inline_stubs = need_inline_stubs( iface ) || need_delegation( iface );
 606
 607   STATEMENTS_FOR_EACH_FUNC(stmt, type_iface_get_stmts(iface)) {
 608     var_t *func = stmt->u.var;
 609     if (first_func) {
 610       fprintf(proxy, "/*****************************************************************************\n");
 611       fprintf(proxy, " * %s interface\n", iface->name);
 612       fprintf(proxy, " */\n");
 613       first_func = 0;
 614     }
 615     if (!is_local(func->attrs)) {
 616       const var_t *cas = is_callas(func->attrs);
 617       const char *cname = cas ? cas->name : NULL;
 618       int idx = func->type->details.function->idx;
 619       if (cname) {
 620           const statement_t *stmt2;
 621           STATEMENTS_FOR_EACH_FUNC(stmt2, type_iface_get_stmts(iface)) {
 622               const var_t *m = stmt2->u.var;
 623               if (!strcmp(m->name, cname))
 624               {
 625                   idx = m->type->details.function->idx;
 626                   break;
 627               }
 628           }
 629       }
 630       func->procstring_offset = *proc_offset;
 631       gen_proxy(iface, func, idx, *proc_offset);
 632       gen_stub(iface, func, cname, *proc_offset);
 633       if (cas && is_interpreted_func( iface, func ))
 634       {
 635           needs_stub_thunks = 1;
 636           gen_stub_thunk(iface, func, *proc_offset);
 637       }
 638       *proc_offset += get_size_procformatstring_func( iface, func );
 639     }
 640   }
 641
 642   count = count_methods(iface);
 643
 644   print_proxy( "static const unsigned short %s_FormatStringOffsetTable[] =\n", iface->name );
 645   print_proxy( "{\n" );
 646   indent++;
 647   write_proxy_procformatstring_offsets( iface, 0 );
 648   indent--;
 649   print_proxy( "};\n\n" );
 650
 651   /* proxy info */
 652   if (get_stub_mode() == MODE_Oif)
 653   {
 654       print_proxy( "static const MIDL_STUBLESS_PROXY_INFO %s_ProxyInfo =\n", iface->name );
 655       print_proxy( "{\n" );
 656       indent++;
 657       print_proxy( "&Object_StubDesc,\n" );
 658       print_proxy( "__MIDL_ProcFormatString.Format,\n" );
 659       print_proxy( "&%s_FormatStringOffsetTable[-3],\n", iface->name );
 660       print_proxy( "0,\n" );
 661       print_proxy( "0,\n" );
 662       print_proxy( "0\n" );
 663       indent--;
 664       print_proxy( "};\n\n" );
 665   }
 666
 667   /* proxy vtable */
 668   print_proxy( "static %sCINTERFACE_PROXY_VTABLE(%d) _%sProxyVtbl =\n",
 669                need_delegation_indirect(iface) ? "" : "const ", 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( "CStdStubBuffer_%s\n", need_delegation_indirect(iface) ? "DELEGATING_METHODS" : "METHODS");
 742   indent--;
 743   print_proxy( "}\n");
 744   indent--;
 745   print_proxy( "};\n");
 746   print_proxy( "\n");
 747 }
 748
 749 static int does_any_iface(const statement_list_t *stmts, type_pred_t pred)
 750 {
 751   const statement_t *stmt;
 752
 753   if (stmts)
 754     LIST_FOR_EACH_ENTRY(stmt, stmts, const statement_t, entry)
 755     {
 756       if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
 757       {
 758         if (pred(stmt->u.type))
 759           return TRUE;
 760       }
 761     }
 762
 763   return FALSE;
 764 }
 765
 766 int need_proxy(const type_t *iface)
 767 {
 768     if (!is_object( iface )) return 0;
 769     if (is_local( iface->attrs )) return 0;
 770     if (is_attr( iface->attrs, ATTR_DISPINTERFACE )) return 0;
 771     return 1;
 772 }
 773
 774 int need_stub(const type_t *iface)
 775 {
 776   return !is_object(iface) && !is_local(iface->attrs);
 777 }
 778
 779 int need_proxy_file(const statement_list_t *stmts)
 780 {
 781   return does_any_iface(stmts, need_proxy);
 782 }
 783
 784 int need_inline_stubs(const type_t *iface)
 785 {
 786     const statement_t *stmt;
 787
 788     if (get_stub_mode() == MODE_Os) return 1;
 789
 790     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
 791     {
 792         const var_t *func = stmt->u.var;
 793         if (is_local( func->attrs )) continue;
 794         if (!is_interpreted_func( iface, func )) return 1;
 795     }
 796     return 0;
 797 }
 798
 799 static int need_proxy_and_inline_stubs(const type_t *iface)
 800 {
 801     const statement_t *stmt;
 802
 803     if (!need_proxy( iface )) return 0;
 804     if (get_stub_mode() == MODE_Os) return 1;
 805
 806     STATEMENTS_FOR_EACH_FUNC( stmt, type_iface_get_stmts(iface) )
 807     {
 808         const var_t *func = stmt->u.var;
 809         if (is_local( func->attrs )) continue;
 810         if (!is_interpreted_func( iface, func )) return 1;
 811     }
 812     return 0;
 813 }
 814
 815 int need_stub_files(const statement_list_t *stmts)
 816 {
 817   return does_any_iface(stmts, need_stub);
 818 }
 819
 820 int need_inline_stubs_file(const statement_list_t *stmts)
 821 {
 822   return does_any_iface(stmts, need_inline_stubs);
 823 }
 824
 825 static void write_proxy_stmts(const statement_list_t *stmts, unsigned int *proc_offset)
 826 {
 827   const statement_t *stmt;
 828   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 829   {
 830     if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
 831     {
 832       if (need_proxy(stmt->u.type))
 833         write_proxy(stmt->u.type, proc_offset);
 834     }
 835   }
 836 }
 837
 838 static int cmp_iid( const void *ptr1, const void *ptr2 )
 839 {
 840     const type_t * const *iface1 = ptr1;
 841     const type_t * const *iface2 = ptr2;
 842     const UUID *uuid1 = get_attrp( (*iface1)->attrs, ATTR_UUID );
 843     const UUID *uuid2 = get_attrp( (*iface2)->attrs, ATTR_UUID );
 844     return memcmp( uuid1, uuid2, sizeof(UUID) );
 845 }
 846
 847 static void build_iface_list( const statement_list_t *stmts, type_t **ifaces[], int *count )
 848 {
 849     const statement_t *stmt;
 850
 851     if (!stmts) return;
 852     LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 853     {
 854         if (stmt->type == STMT_TYPE && type_get_type(stmt->u.type) == TYPE_INTERFACE)
 855         {
 856             type_t *iface = stmt->u.type;
 857             if (type_iface_get_inherit(iface) && need_proxy(iface))
 858             {
 859                 *ifaces = xrealloc( *ifaces, (*count + 1) * sizeof(**ifaces) );
 860                 (*ifaces)[(*count)++] = iface;
 861             }
 862         }
 863     }
 864 }
 865
 866 static type_t **sort_interfaces( const statement_list_t *stmts, int *count )
 867 {
 868     type_t **ifaces = NULL;
 869
 870     *count = 0;
 871     build_iface_list( stmts, &ifaces, count );
 872     qsort( ifaces, *count, sizeof(*ifaces), cmp_iid );
 873     return ifaces;
 874 }
 875
 876 static void write_proxy_routines(const statement_list_t *stmts)
 877 {
 878   int expr_eval_routines;
 879   unsigned int proc_offset = 0;
 880   char *file_id = proxy_token;
 881   int i, count, have_baseiid = 0;
 882   type_t **interfaces;
 883   const type_t * delegate_to;
 884
 885   print_proxy( "#ifndef __REDQ_RPCPROXY_H_VERSION__\n");
 886   print_proxy( "#define __REQUIRED_RPCPROXY_H_VERSION__ %u\n", get_stub_mode() == MODE_Oif ? 475 : 440);
 887   print_proxy( "#endif\n");
 888   print_proxy( "\n");
 889   if (get_stub_mode() == MODE_Oif) print_proxy( "#define USE_STUBLESS_PROXY\n");
 890   print_proxy( "#include \"rpcproxy.h\"\n");
 891   print_proxy( "#ifndef __RPCPROXY_H_VERSION__\n");
 892   print_proxy( "#error This code needs a newer version of rpcproxy.h\n");
 893   print_proxy( "#endif /* __RPCPROXY_H_VERSION__ */\n");
 894   print_proxy( "\n");
 895   print_proxy( "#include \"%s\"\n", header_name);
 896   print_proxy( "\n");
 897
 898   if (does_any_iface(stmts, need_proxy_and_inline_stubs))
 899   {
 900       write_exceptions( proxy );
 901       print_proxy( "\n");
 902       print_proxy( "struct __proxy_frame\n");
 903       print_proxy( "{\n");
 904       print_proxy( "    __DECL_EXCEPTION_FRAME\n");
 905       print_proxy( "    MIDL_STUB_MESSAGE _StubMsg;\n");
 906       print_proxy( "    void             *This;\n");
 907       print_proxy( "};\n");
 908       print_proxy( "\n");
 909       print_proxy("static int __proxy_filter( struct __proxy_frame *__frame )\n");
 910       print_proxy( "{\n");
 911       print_proxy( "    return (__frame->_StubMsg.dwStubPhase != PROXY_SENDRECEIVE);\n");
 912       print_proxy( "}\n");
 913       print_proxy( "\n");
 914   }
 915
 916   write_formatstringsdecl(proxy, indent, stmts, need_proxy);
 917   write_stubdescproto();
 918   write_proxy_stmts(stmts, &proc_offset);
 919
 920   expr_eval_routines = write_expr_eval_routines(proxy, proxy_token);
 921   if (expr_eval_routines)
 922       write_expr_eval_routine_list(proxy, proxy_token);
 923   write_user_quad_list(proxy);
 924   write_stubdesc(expr_eval_routines);
 925
 926   print_proxy( "#if !defined(__RPC_WIN%u__)\n", pointer_size == 8 ? 64 : 32);
 927   print_proxy( "#error Currently only Wine and WIN32 are supported.\n");
 928   print_proxy( "#endif\n");
 929   print_proxy( "\n");
 930   write_procformatstring(proxy, stmts, need_proxy);
 931   write_typeformatstring(proxy, stmts, need_proxy);
 932
 933   interfaces = sort_interfaces(stmts, &count);
 934   fprintf(proxy, "static const CInterfaceProxyVtbl* const _%s_ProxyVtblList[] =\n", file_id);
 935   fprintf(proxy, "{\n");
 936   for (i = 0; i < count; i++)
 937       fprintf(proxy, "    (const CInterfaceProxyVtbl*)&_%sProxyVtbl,\n", interfaces[i]->name);
 938   fprintf(proxy, "    0\n");
 939   fprintf(proxy, "};\n");
 940   fprintf(proxy, "\n");
 941
 942   fprintf(proxy, "static const CInterfaceStubVtbl* const _%s_StubVtblList[] =\n", file_id);
 943   fprintf(proxy, "{\n");
 944   for (i = 0; i < count; i++)
 945       fprintf(proxy, "    &_%sStubVtbl,\n", interfaces[i]->name);
 946   fprintf(proxy, "    0\n");
 947   fprintf(proxy, "};\n");
 948   fprintf(proxy, "\n");
 949
 950   fprintf(proxy, "static PCInterfaceName const _%s_InterfaceNamesList[] =\n", file_id);
 951   fprintf(proxy, "{\n");
 952   for (i = 0; i < count; i++)
 953       fprintf(proxy, "    \"%s\",\n", interfaces[i]->name);
 954   fprintf(proxy, "    0\n");
 955   fprintf(proxy, "};\n");
 956   fprintf(proxy, "\n");
 957
 958   for (i = 0; i < count; i++)
 959       if ((have_baseiid = get_delegation_indirect( interfaces[i], NULL ))) break;
 960
 961   if (have_baseiid)
 962   {
 963       fprintf(proxy, "static const IID * _%s_BaseIIDList[] =\n", file_id);
 964       fprintf(proxy, "{\n");
 965       for (i = 0; i < count; i++)
 966       {
 967           if (get_delegation_indirect(interfaces[i], &delegate_to))
 968               fprintf( proxy, "    &IID_%s,  /* %s */\n", delegate_to->name, interfaces[i]->name );
 969           else
 970               fprintf( proxy, "    0,\n" );
 971       }
 972       fprintf(proxy, "    0\n");
 973       fprintf(proxy, "};\n");
 974       fprintf(proxy, "\n");
 975   }
 976
 977   fprintf(proxy, "static int __stdcall _%s_IID_Lookup(const IID* pIID, int* pIndex)\n", file_id);
 978   fprintf(proxy, "{\n");
 979   fprintf(proxy, "    int low = 0, high = %d;\n", count - 1);
 980   fprintf(proxy, "\n");
 981   fprintf(proxy, "    while (low <= high)\n");
 982   fprintf(proxy, "    {\n");
 983   fprintf(proxy, "        int pos = (low + high) / 2;\n");
 984   fprintf(proxy, "        int res = IID_GENERIC_CHECK_IID(_%s, pIID, pos);\n", file_id);
 985   fprintf(proxy, "        if (!res) { *pIndex = pos; return 1; }\n");
 986   fprintf(proxy, "        if (res > 0) low = pos + 1;\n");
 987   fprintf(proxy, "        else high = pos - 1;\n");
 988   fprintf(proxy, "    }\n");
 989   fprintf(proxy, "    return 0;\n");
 990   fprintf(proxy, "}\n");
 991   fprintf(proxy, "\n");
 992
 993   fprintf(proxy, "const ExtendedProxyFileInfo %s_ProxyFileInfo DECLSPEC_HIDDEN =\n", file_id);
 994   fprintf(proxy, "{\n");
 995   fprintf(proxy, "    (const PCInterfaceProxyVtblList*)_%s_ProxyVtblList,\n", file_id);
 996   fprintf(proxy, "    (const PCInterfaceStubVtblList*)_%s_StubVtblList,\n", file_id);
 997   fprintf(proxy, "    _%s_InterfaceNamesList,\n", file_id);
 998   if (have_baseiid) fprintf(proxy, "    _%s_BaseIIDList,\n", file_id);
 999   else fprintf(proxy, "    0,\n");
1000   fprintf(proxy, "    _%s_IID_Lookup,\n", file_id);
1001   fprintf(proxy, "    %d,\n", count);
1002   fprintf(proxy, "    %d,\n", get_stub_mode() == MODE_Oif ? 2 : 1);
1003   fprintf(proxy, "    0,\n");
1004   fprintf(proxy, "    0,\n");
1005   fprintf(proxy, "    0,\n");
1006   fprintf(proxy, "    0\n");
1007   fprintf(proxy, "};\n");
1008 }
1009
1010 void write_proxies(const statement_list_t *stmts)
1011 {
1012   if (!do_proxies) return;
1013   if (do_everything && !need_proxy_file(stmts)) return;
1014
1015   init_proxy(stmts);
1016   if(!proxy) return;
1017
1018   if (do_win32 && do_win64)
1019   {
1020       fprintf(proxy, "\n#ifndef _WIN64\n\n");
1021       pointer_size = 4;
1022       write_proxy_routines( stmts );
1023       fprintf(proxy, "\n#else /* _WIN64 */\n\n");
1024       pointer_size = 8;
1025       write_proxy_routines( stmts );
1026       fprintf(proxy, "\n#endif /* _WIN64 */\n");
1027   }
1028   else if (do_win32)
1029   {
1030       pointer_size = 4;
1031       write_proxy_routines( stmts );
1032   }
1033   else if (do_win64)
1034   {
1035       pointer_size = 8;
1036       write_proxy_routines( stmts );
1037   }
1038
1039   fclose(proxy);
1040 }