tools/widl/proxy.c

   1 /*
   2  * IDL Compiler
   3  *
   4  * Copyright 2002 Ove Kaaven
   5  * Copyright 2004 Mike McCormack
   6  *
   7  * This library is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU Lesser General Public
   9  * License as published by the Free Software Foundation; either
  10  * version 2.1 of the License, or (at your option) any later version.
  11  *
  12  * This library is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * Lesser General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU Lesser General Public
  18  * License along with this library; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  20  */
  21
  22 #include "config.h"
  23 #include "wine/port.h"
  24
  25 #include <stdio.h>
  26 #include <stdlib.h>
  27 #ifdef HAVE_UNISTD_H
  28 # include <unistd.h>
  29 #endif
  30 #include <string.h>
  31 #include <ctype.h>
  32
  33 #include "widl.h"
  34 #include "utils.h"
  35 #include "parser.h"
  36 #include "header.h"
  37 #include "typegen.h"
  38 #include "expr.h"
  39
  40 #define END_OF_LIST(list)       \
  41   do {                          \
  42     if (list) {                 \
  43       while (NEXT_LINK(list))   \
  44         list = NEXT_LINK(list); \
  45     }                           \
  46   } while(0)
  47
  48 static FILE* proxy;
  49 static int indent = 0;
  50
  51 /* FIXME: support generation of stubless proxies */
  52
  53 static void print_proxy( const char *format, ... )
  54 {
  55   va_list va;
  56   va_start( va, format );
  57   print( proxy, indent, format, va );
  58   va_end( va );
  59 }
  60
  61 static void write_stubdescproto(void)
  62 {
  63   print_proxy( "static const MIDL_STUB_DESC Object_StubDesc;\n");
  64   print_proxy( "\n");
  65 }
  66
  67 static void write_stubdesc(int expr_eval_routines)
  68 {
  69   print_proxy( "static const MIDL_STUB_DESC Object_StubDesc =\n{\n");
  70   indent++;
  71   print_proxy( "0,\n");
  72   print_proxy( "NdrOleAllocate,\n");
  73   print_proxy( "NdrOleFree,\n");
  74   print_proxy( "{0}, 0, 0, %s, 0,\n", expr_eval_routines ? "ExprEvalRoutines" : "0");
  75   print_proxy( "__MIDL_TypeFormatString.Format,\n");
  76   print_proxy( "1, /* -error bounds_check flag */\n");
  77   print_proxy( "0x10001, /* Ndr library version */\n");
  78   print_proxy( "0,\n");
  79   print_proxy( "0x50100a4, /* MIDL Version 5.1.164 */\n");
  80   print_proxy( "0,\n");
  81   print_proxy("%s,\n", list_empty(&user_type_list) ? "0" : "UserMarshalRoutines");
  82   print_proxy( "0,  /* notify & notify_flag routine table */\n");
  83   print_proxy( "1,  /* Flags */\n");
  84   print_proxy( "0,  /* Reserved3 */\n");
  85   print_proxy( "0,  /* Reserved4 */\n");
  86   print_proxy( "0   /* Reserved5 */\n");
  87   indent--;
  88   print_proxy( "};\n");
  89   print_proxy( "\n");
  90 }
  91
  92 static void init_proxy(const statement_list_t *stmts)
  93 {
  94   if (proxy) return;
  95   if(!(proxy = fopen(proxy_name, "w")))
  96     error("Could not open %s for output\n", proxy_name);
  97   print_proxy( "/*** Autogenerated by WIDL %s from %s - Do not edit ***/\n", PACKAGE_VERSION, input_name);
  98   print_proxy( "\n");
  99   print_proxy( "#ifndef __REDQ_RPCPROXY_H_VERSION__\n");
 100   print_proxy( "#define __REQUIRED_RPCPROXY_H_VERSION__ 440\n");
 101   print_proxy( "#endif /* __REDQ_RPCPROXY_H_VERSION__ */\n");
 102   print_proxy( "\n");
 103   print_proxy( "#define __midl_proxy\n");
 104   print_proxy( "#include \"objbase.h\"\n");
 105   print_proxy( "#include \"rpcproxy.h\"\n");
 106   print_proxy( "#ifndef __RPCPROXY_H_VERSION__\n");
 107   print_proxy( "#error This code needs a newer version of rpcproxy.h\n");
 108   print_proxy( "#endif /* __RPCPROXY_H_VERSION__ */\n");
 109   print_proxy( "\n");
 110   print_proxy( "#include \"%s\"\n", header_name);
 111   print_proxy( "\n");
 112   print_proxy( "#ifndef DECLSPEC_HIDDEN\n");
 113   print_proxy( "#define DECLSPEC_HIDDEN\n");
 114   print_proxy( "#endif\n");
 115   print_proxy( "\n");
 116   write_exceptions( proxy );
 117   print_proxy( "\n");
 118   print_proxy( "struct __proxy_frame\n");
 119   print_proxy( "{\n");
 120   print_proxy( "    __DECL_EXCEPTION_FRAME\n");
 121   print_proxy( "    MIDL_STUB_MESSAGE _StubMsg;\n");
 122   print_proxy( "    void             *This;\n");
 123   print_proxy( "};\n");
 124   print_proxy( "\n");
 125   print_proxy("static int __proxy_filter( struct __proxy_frame *__frame )\n");
 126   print_proxy( "{\n");
 127   print_proxy( "    return (__frame->_StubMsg.dwStubPhase != PROXY_SENDRECEIVE);\n");
 128   print_proxy( "}\n");
 129   print_proxy( "\n");
 130   write_formatstringsdecl(proxy, indent, stmts, need_proxy);
 131   write_stubdescproto();
 132 }
 133
 134 static void clear_output_vars( const var_list_t *args )
 135 {
 136   const var_t *arg;
 137
 138   if (!args) return;
 139   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 140   {
 141     if (is_attr(arg->attrs, ATTR_OUT) && !is_attr(arg->attrs, ATTR_IN)) {
 142       print_proxy( "if(%s)\n", arg->name );
 143       indent++;
 144       print_proxy( "MIDL_memset( %s, 0, sizeof( *%s ));\n", arg->name, arg->name );
 145       indent--;
 146     }
 147   }
 148 }
 149
 150 int is_var_ptr(const var_t *v)
 151 {
 152   return is_ptr(v->type);
 153 }
 154
 155 int cant_be_null(const var_t *v)
 156 {
 157   /* Search backwards for the most recent pointer attribute.  */
 158   const attr_list_t *attrs = v->attrs;
 159   const type_t *type = v->type;
 160
 161   /* context handles have their own checking so they can be null for the
 162    * purposes of null ref pointer checking */
 163   if (is_aliaschain_attr(type, ATTR_CONTEXTHANDLE))
 164       return 0;
 165
 166   if (! attrs && type)
 167   {
 168     attrs = type->attrs;
 169     type = type->ref;
 170   }
 171
 172   while (attrs)
 173   {
 174     int t = get_attrv(attrs, ATTR_POINTERTYPE);
 175
 176     if (t == RPC_FC_FP || t == RPC_FC_OP || t == RPC_FC_UP)
 177       return 0;
 178
 179     if (t == RPC_FC_RP)
 180       return 1;
 181
 182     if (type)
 183     {
 184       attrs = type->attrs;
 185       type = type->ref;
 186     }
 187     else
 188       attrs = NULL;
 189   }
 190
 191   return 1;                             /* Default is RPC_FC_RP.  */
 192 }
 193
 194 static int need_delegation(const type_t *iface)
 195 {
 196     return iface->ref && iface->ref->ref && iface->ref->ignore;
 197 }
 198
 199 static void proxy_check_pointers( const var_list_t *args )
 200 {
 201   const var_t *arg;
 202
 203   if (!args) return;
 204   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 205   {
 206     if (is_var_ptr(arg) && cant_be_null(arg)) {
 207         print_proxy( "if(!%s)\n", arg->name );
 208         indent++;
 209         print_proxy( "RpcRaiseException(RPC_X_NULL_REF_POINTER);\n");
 210         indent--;
 211     }
 212   }
 213 }
 214
 215 static void free_variable( const var_t *arg, const char *local_var_prefix )
 216 {
 217   unsigned int type_offset = arg->type->typestring_offset;
 218   expr_t *iid;
 219   type_t *type = arg->type;
 220   expr_t *size = get_size_is_expr(type, arg->name);
 221
 222   if (size)
 223   {
 224     print_proxy( "__frame->_StubMsg.MaxCount = " );
 225     write_expr(proxy, size, 0, 1, NULL, NULL, local_var_prefix);
 226     fprintf(proxy, ";\n\n");
 227     print_proxy( "NdrClearOutParameters( &__frame->_StubMsg, ");
 228     fprintf(proxy, "&__MIDL_TypeFormatString.Format[%u], ", type_offset );
 229     fprintf(proxy, "(void*)%s );\n", arg->name );
 230     return;
 231   }
 232
 233   switch( type->type )
 234   {
 235   case RPC_FC_BYTE:
 236   case RPC_FC_CHAR:
 237   case RPC_FC_WCHAR:
 238   case RPC_FC_SHORT:
 239   case RPC_FC_USHORT:
 240   case RPC_FC_ENUM16:
 241   case RPC_FC_LONG:
 242   case RPC_FC_ULONG:
 243   case RPC_FC_ENUM32:
 244   case RPC_FC_STRUCT:
 245     break;
 246
 247   case RPC_FC_FP:
 248   case RPC_FC_IP:
 249     iid = get_attrp( arg->attrs, ATTR_IIDIS );
 250     if( iid )
 251     {
 252       print_proxy( "__frame->_StubMsg.MaxCount = (unsigned long) " );
 253       write_expr(proxy, iid, 1, 1, NULL, NULL, local_var_prefix);
 254       print_proxy( ";\n\n" );
 255     }
 256     print_proxy( "NdrClearOutParameters( &__frame->_StubMsg, ");
 257     fprintf(proxy, "&__MIDL_TypeFormatString.Format[%u], ", type_offset );
 258     fprintf(proxy, "(void*)%s );\n", arg->name );
 259     break;
 260
 261   default:
 262     print_proxy("/* FIXME: %s code for %s type %d missing */\n", __FUNCTION__, arg->name, type->type );
 263   }
 264 }
 265
 266 static void proxy_free_variables( var_list_t *args, const char *local_var_prefix )
 267 {
 268   const var_t *arg;
 269
 270   if (!args) return;
 271   LIST_FOR_EACH_ENTRY( arg, args, const var_t, entry )
 272     if (is_attr(arg->attrs, ATTR_OUT))
 273     {
 274       free_variable( arg, local_var_prefix );
 275       fprintf(proxy, "\n");
 276     }
 277 }
 278
 279 static void gen_proxy(type_t *iface, const func_t *cur, int idx,
 280                       unsigned int proc_offset)
 281 {
 282   var_t *def = cur->def;
 283   int has_ret = !is_void(get_func_return_type(cur));
 284   int has_full_pointer = is_full_pointer_function(cur);
 285   const char *callconv = get_attrp(def->type->attrs, ATTR_CALLCONV);
 286   if (!callconv) callconv = "";
 287
 288   indent = 0;
 289   print_proxy( "static void __finally_%s_%s_Proxy( struct __proxy_frame *__frame )\n",
 290                iface->name, get_name(def) );
 291   print_proxy( "{\n");
 292   indent++;
 293   if (has_full_pointer) write_full_pointer_free(proxy, indent, cur);
 294   print_proxy( "NdrProxyFreeBuffer( __frame->This, &__frame->_StubMsg );\n" );
 295   indent--;
 296   print_proxy( "}\n");
 297   print_proxy( "\n");
 298
 299   write_type_decl_left(proxy, get_func_return_type(cur));
 300   print_proxy( " %s %s_%s_Proxy(\n", callconv, iface->name, get_name(def));
 301   write_args(proxy, cur->args, iface->name, 1, TRUE);
 302   print_proxy( ")\n");
 303   print_proxy( "{\n");
 304   indent ++;
 305   print_proxy( "struct __proxy_frame __f, * const __frame = &__f;\n" );
 306   /* local variables */
 307   if (has_ret) {
 308     print_proxy( "" );
 309     write_type_decl_left(proxy, get_func_return_type(cur));
 310     print_proxy( " _RetVal;\n");
 311   }
 312   print_proxy( "RPC_MESSAGE _RpcMessage;\n" );
 313   if (has_ret) {
 314     if (decl_indirect(get_func_return_type(cur)))
 315       print_proxy("void *_p_%s = &%s;\n",
 316                  "_RetVal", "_RetVal");
 317   }
 318   print_proxy( "\n");
 319
 320   print_proxy( "RpcExceptionInit( __proxy_filter, __finally_%s_%s_Proxy );\n", iface->name, get_name(def) );
 321   print_proxy( "__frame->This = This;\n" );
 322
 323   if (has_full_pointer)
 324     write_full_pointer_init(proxy, indent, cur, FALSE);
 325
 326   /* FIXME: trace */
 327   clear_output_vars( cur->args );
 328
 329   print_proxy( "RpcTryExcept\n" );
 330   print_proxy( "{\n" );
 331   indent++;
 332   print_proxy( "NdrProxyInitialize(This, &_RpcMessage, &__frame->_StubMsg, &Object_StubDesc, %d);\n", idx);
 333   proxy_check_pointers( cur->args );
 334
 335   print_proxy( "RpcTryFinally\n" );
 336   print_proxy( "{\n" );
 337   indent++;
 338
 339   write_remoting_arguments(proxy, indent, cur, "", PASS_IN, PHASE_BUFFERSIZE);
 340
 341   print_proxy( "NdrProxyGetBuffer(This, &__frame->_StubMsg);\n" );
 342
 343   write_remoting_arguments(proxy, indent, cur, "", PASS_IN, PHASE_MARSHAL);
 344
 345   print_proxy( "NdrProxySendReceive(This, &__frame->_StubMsg);\n" );
 346   fprintf(proxy, "\n");
 347   print_proxy( "__frame->_StubMsg.BufferStart = _RpcMessage.Buffer;\n" );
 348   print_proxy( "__frame->_StubMsg.BufferEnd   = __frame->_StubMsg.BufferStart + _RpcMessage.BufferLength;\n\n" );
 349
 350   print_proxy("if ((_RpcMessage.DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 351   indent++;
 352   print_proxy("NdrConvert( &__frame->_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 353   indent--;
 354   fprintf(proxy, "\n");
 355
 356   write_remoting_arguments(proxy, indent, cur, "", PASS_OUT, PHASE_UNMARSHAL);
 357
 358   if (has_ret)
 359   {
 360       if (decl_indirect(get_func_return_type(cur)))
 361           print_proxy("MIDL_memset(&%s, 0, sizeof(%s));\n", "_RetVal", "_RetVal");
 362       else if (is_ptr(get_func_return_type(cur)) || is_array(get_func_return_type(cur)))
 363           print_proxy("%s = 0;\n", "_RetVal");
 364       write_remoting_arguments(proxy, indent, cur, "", PASS_RETURN, PHASE_UNMARSHAL);
 365   }
 366
 367   indent--;
 368   print_proxy( "}\n");
 369   print_proxy( "RpcFinally\n" );
 370   print_proxy( "{\n" );
 371   indent++;
 372   print_proxy( "__finally_%s_%s_Proxy( __frame );\n", iface->name, get_name(def) );
 373   indent--;
 374   print_proxy( "}\n");
 375   print_proxy( "RpcEndFinally\n" );
 376   indent--;
 377   print_proxy( "}\n" );
 378   print_proxy( "RpcExcept(__frame->_StubMsg.dwStubPhase != PROXY_SENDRECEIVE)\n" );
 379   print_proxy( "{\n" );
 380   if (has_ret) {
 381     indent++;
 382     proxy_free_variables( cur->args, "" );
 383     print_proxy( "_RetVal = NdrProxyErrorHandler(RpcExceptionCode());\n" );
 384     indent--;
 385   }
 386   print_proxy( "}\n" );
 387   print_proxy( "RpcEndExcept\n" );
 388
 389   if (has_ret) {
 390     print_proxy( "return _RetVal;\n" );
 391   }
 392   indent--;
 393   print_proxy( "}\n");
 394   print_proxy( "\n");
 395 }
 396
 397 static void gen_stub(type_t *iface, const func_t *cur, const char *cas,
 398                      unsigned int proc_offset)
 399 {
 400   var_t *def = cur->def;
 401   const var_t *arg;
 402   int has_ret = !is_void(get_func_return_type(cur));
 403   int has_full_pointer = is_full_pointer_function(cur);
 404
 405   indent = 0;
 406   print_proxy( "struct __frame_%s_%s_Stub\n{\n", iface->name, get_name(def));
 407   indent++;
 408   print_proxy( "__DECL_EXCEPTION_FRAME\n" );
 409   print_proxy( "MIDL_STUB_MESSAGE _StubMsg;\n");
 410   print_proxy( "%s * _This;\n", iface->name );
 411   declare_stub_args( proxy, indent, cur );
 412   indent--;
 413   print_proxy( "};\n\n" );
 414
 415   print_proxy( "static void __finally_%s_%s_Stub(", iface->name, get_name(def) );
 416   print_proxy( " struct __frame_%s_%s_Stub *__frame )\n{\n", iface->name, get_name(def) );
 417   indent++;
 418   write_remoting_arguments(proxy, indent, cur, "__frame->", PASS_OUT, PHASE_FREE);
 419   if (has_full_pointer)
 420     write_full_pointer_free(proxy, indent, cur);
 421   indent--;
 422   print_proxy( "}\n\n" );
 423
 424   print_proxy( "void __RPC_STUB %s_%s_Stub(\n", iface->name, get_name(def));
 425   indent++;
 426   print_proxy( "IRpcStubBuffer* This,\n");
 427   print_proxy( "IRpcChannelBuffer *_pRpcChannelBuffer,\n");
 428   print_proxy( "PRPC_MESSAGE _pRpcMessage,\n");
 429   print_proxy( "DWORD* _pdwStubPhase)\n");
 430   indent--;
 431   print_proxy( "{\n");
 432   indent++;
 433   print_proxy( "struct __frame_%s_%s_Stub __f, * const __frame = &__f;\n\n",
 434                iface->name, get_name(def) );
 435
 436   print_proxy("__frame->_This = (%s*)((CStdStubBuffer*)This)->pvServerObject;\n\n", iface->name);
 437
 438   /* FIXME: trace */
 439
 440   print_proxy("NdrStubInitialize(_pRpcMessage, &__frame->_StubMsg, &Object_StubDesc, _pRpcChannelBuffer);\n");
 441   fprintf(proxy, "\n");
 442   print_proxy( "RpcExceptionInit( 0, __finally_%s_%s_Stub );\n", iface->name, get_name(def) );
 443
 444   write_parameters_init(proxy, indent, cur, "__frame->");
 445
 446   print_proxy("RpcTryFinally\n");
 447   print_proxy("{\n");
 448   indent++;
 449   if (has_full_pointer)
 450     write_full_pointer_init(proxy, indent, cur, TRUE);
 451   print_proxy("if ((_pRpcMessage->DataRepresentation & 0xffff) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 452   indent++;
 453   print_proxy("NdrConvert( &__frame->_StubMsg, &__MIDL_ProcFormatString.Format[%u]);\n", proc_offset );
 454   indent--;
 455   fprintf(proxy, "\n");
 456
 457   write_remoting_arguments(proxy, indent, cur, "__frame->", PASS_IN, PHASE_UNMARSHAL);
 458   fprintf(proxy, "\n");
 459
 460   assign_stub_out_args( proxy, indent, cur, "__frame->" );
 461
 462   print_proxy("*_pdwStubPhase = STUB_CALL_SERVER;\n");
 463   fprintf(proxy, "\n");
 464   print_proxy("");
 465   if (has_ret) fprintf(proxy, "__frame->_RetVal = ");
 466   if (cas) fprintf(proxy, "%s_%s_Stub", iface->name, cas);
 467   else fprintf(proxy, "__frame->_This->lpVtbl->%s", get_name(def));
 468   fprintf(proxy, "(__frame->_This");
 469
 470   if (cur->args)
 471   {
 472       LIST_FOR_EACH_ENTRY( arg, cur->args, const var_t, entry )
 473           fprintf(proxy, ", %s__frame->%s", arg->type->declarray ? "*" : "", arg->name);
 474   }
 475   fprintf(proxy, ");\n");
 476   fprintf(proxy, "\n");
 477   print_proxy("*_pdwStubPhase = STUB_MARSHAL;\n");
 478   fprintf(proxy, "\n");
 479
 480   write_remoting_arguments(proxy, indent, cur, "__frame->", PASS_OUT, PHASE_BUFFERSIZE);
 481
 482   if (!is_void(get_func_return_type(cur)))
 483     write_remoting_arguments(proxy, indent, cur, "__frame->", PASS_RETURN, PHASE_BUFFERSIZE);
 484
 485   print_proxy("NdrStubGetBuffer(This, _pRpcChannelBuffer, &__frame->_StubMsg);\n");
 486
 487   write_remoting_arguments(proxy, indent, cur, "__frame->", PASS_OUT, PHASE_MARSHAL);
 488   fprintf(proxy, "\n");
 489
 490   /* marshall the return value */
 491   if (!is_void(get_func_return_type(cur)))
 492     write_remoting_arguments(proxy, indent, cur, "__frame->", PASS_RETURN, PHASE_MARSHAL);
 493
 494   indent--;
 495   print_proxy("}\n");
 496   print_proxy("RpcFinally\n");
 497   print_proxy("{\n");
 498   indent++;
 499   print_proxy( "__finally_%s_%s_Stub( __frame );\n", iface->name, get_name(def) );
 500   indent--;
 501   print_proxy("}\n");
 502   print_proxy("RpcEndFinally\n");
 503
 504   print_proxy("_pRpcMessage->BufferLength = __frame->_StubMsg.Buffer - (unsigned char *)_pRpcMessage->Buffer;\n");
 505   indent--;
 506
 507   print_proxy("}\n");
 508   print_proxy("\n");
 509 }
 510
 511 static int count_methods(type_t *iface)
 512 {
 513     const func_t *cur;
 514     int count = 0;
 515
 516     if (iface->ref) count = count_methods(iface->ref);
 517     if (iface->funcs)
 518         LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry )
 519             if (!is_callas(cur->def->attrs)) count++;
 520     return count;
 521 }
 522
 523 static int write_proxy_methods(type_t *iface, int skip)
 524 {
 525   const func_t *cur;
 526   int i = 0;
 527
 528   if (iface->ref) i = write_proxy_methods(iface->ref, need_delegation(iface));
 529   if (iface->funcs) LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry ) {
 530     var_t *def = cur->def;
 531     if (!is_callas(def->attrs)) {
 532       if (i) fprintf(proxy, ",\n");
 533       if (skip) print_proxy( "0  /* %s_%s_Proxy */", iface->name, get_name(def));
 534       else print_proxy( "%s_%s_Proxy", iface->name, get_name(def));
 535       i++;
 536     }
 537   }
 538   return i;
 539 }
 540
 541 static int write_stub_methods(type_t *iface, int skip)
 542 {
 543   const func_t *cur;
 544   int i = 0;
 545
 546   if (iface->ref) i = write_stub_methods(iface->ref, need_delegation(iface));
 547   else return i; /* skip IUnknown */
 548
 549   if (iface->funcs) LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry ) {
 550     var_t *def = cur->def;
 551     if (!is_local(def->attrs)) {
 552       if (i) fprintf(proxy,",\n");
 553       if (skip) print_proxy("STUB_FORWARDING_FUNCTION");
 554       else print_proxy( "%s_%s_Stub", iface->name, get_name(def));
 555       i++;
 556     }
 557   }
 558   return i;
 559 }
 560
 561 static void write_proxy(type_t *iface, unsigned int *proc_offset)
 562 {
 563   int midx = -1, count;
 564   const func_t *cur;
 565
 566   /* FIXME: check for [oleautomation], shouldn't generate proxies/stubs if specified */
 567
 568   fprintf(proxy, "/*****************************************************************************\n");
 569   fprintf(proxy, " * %s interface\n", iface->name);
 570   fprintf(proxy, " */\n");
 571   if (iface->funcs) LIST_FOR_EACH_ENTRY( cur, iface->funcs, const func_t, entry )
 572   {
 573     const var_t *def = cur->def;
 574     if (!is_local(def->attrs)) {
 575       const var_t *cas = is_callas(def->attrs);
 576       const char *cname = cas ? cas->name : NULL;
 577       int idx = cur->idx;
 578       if (cname) {
 579           const func_t *m;
 580           LIST_FOR_EACH_ENTRY( m, iface->funcs, const func_t, entry )
 581               if (!strcmp(m->def->name, cname))
 582               {
 583                   idx = m->idx;
 584                   break;
 585               }
 586       }
 587       gen_proxy(iface, cur, idx, *proc_offset);
 588       gen_stub(iface, cur, cname, *proc_offset);
 589       *proc_offset += get_size_procformatstring_func( cur );
 590       if (midx == -1) midx = idx;
 591       else if (midx != idx) error("method index mismatch in write_proxy\n");
 592       midx++;
 593     }
 594   }
 595
 596   count = count_methods(iface);
 597   if (midx != -1 && midx != count) error("invalid count %u/%u\n", count, midx);
 598
 599   /* proxy vtable */
 600   print_proxy( "static const CINTERFACE_PROXY_VTABLE(%d) _%sProxyVtbl =\n", count, iface->name);
 601   print_proxy( "{\n");
 602   indent++;
 603   print_proxy( "{\n", iface->name);
 604   indent++;
 605   print_proxy( "&IID_%s,\n", iface->name);
 606   indent--;
 607   print_proxy( "},\n");
 608   print_proxy( "{\n");
 609   indent++;
 610   write_proxy_methods(iface, FALSE);
 611   fprintf(proxy, "\n");
 612   indent--;
 613   print_proxy( "}\n");
 614   indent--;
 615   print_proxy( "};\n");
 616   fprintf(proxy, "\n\n");
 617
 618   /* stub vtable */
 619   print_proxy( "static const PRPC_STUB_FUNCTION %s_table[] =\n", iface->name);
 620   print_proxy( "{\n");
 621   indent++;
 622   write_stub_methods(iface, FALSE);
 623   fprintf(proxy, "\n");
 624   indent--;
 625   fprintf(proxy, "};\n");
 626   print_proxy( "\n");
 627   print_proxy( "static %sCInterfaceStubVtbl _%sStubVtbl =\n",
 628                need_delegation(iface) ? "" : "const ", iface->name);
 629   print_proxy( "{\n");
 630   indent++;
 631   print_proxy( "{\n");
 632   indent++;
 633   print_proxy( "&IID_%s,\n", iface->name);
 634   print_proxy( "0,\n");
 635   print_proxy( "%d,\n", count);
 636   print_proxy( "&%s_table[-3],\n", iface->name);
 637   indent--;
 638   print_proxy( "},\n", iface->name);
 639   print_proxy( "{\n");
 640   indent++;
 641   print_proxy( "CStdStubBuffer_%s\n", need_delegation(iface) ? "DELEGATING_METHODS" : "METHODS");
 642   indent--;
 643   print_proxy( "}\n");
 644   indent--;
 645   print_proxy( "};\n");
 646   print_proxy( "\n");
 647 }
 648
 649 static int does_any_iface(const statement_list_t *stmts, type_pred_t pred)
 650 {
 651   const statement_t *stmt;
 652
 653   if (stmts)
 654     LIST_FOR_EACH_ENTRY(stmt, stmts, const statement_t, entry)
 655     {
 656       if (stmt->type == STMT_LIBRARY)
 657       {
 658           if (does_any_iface(stmt->u.lib->stmts, pred))
 659               return TRUE;
 660       }
 661       else if (stmt->type == STMT_TYPE && stmt->u.type->type == RPC_FC_IP)
 662       {
 663         if (pred(stmt->u.type))
 664           return TRUE;
 665       }
 666     }
 667
 668   return FALSE;
 669 }
 670
 671 int need_proxy(const type_t *iface)
 672 {
 673   return is_object(iface->attrs) && !is_local(iface->attrs);
 674 }
 675
 676 int need_stub(const type_t *iface)
 677 {
 678   return !is_object(iface->attrs) && !is_local(iface->attrs);
 679 }
 680
 681 int need_proxy_file(const statement_list_t *stmts)
 682 {
 683   return does_any_iface(stmts, need_proxy);
 684 }
 685
 686 int need_stub_files(const statement_list_t *stmts)
 687 {
 688   return does_any_iface(stmts, need_stub);
 689 }
 690
 691 static void write_proxy_stmts(const statement_list_t *stmts, unsigned int *proc_offset)
 692 {
 693   const statement_t *stmt;
 694   if (stmts) LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 695   {
 696     if (stmt->type == STMT_LIBRARY)
 697       write_proxy_stmts(stmt->u.lib->stmts, proc_offset);
 698     else if (stmt->type == STMT_TYPE && stmt->u.type->type == RPC_FC_IP)
 699     {
 700       if (need_proxy(stmt->u.type))
 701         write_proxy(stmt->u.type, proc_offset);
 702     }
 703   }
 704 }
 705
 706 static int cmp_iid( const void *ptr1, const void *ptr2 )
 707 {
 708     const type_t * const *iface1 = ptr1;
 709     const type_t * const *iface2 = ptr2;
 710     const UUID *uuid1 = get_attrp( (*iface1)->attrs, ATTR_UUID );
 711     const UUID *uuid2 = get_attrp( (*iface2)->attrs, ATTR_UUID );
 712     return memcmp( uuid1, uuid2, sizeof(UUID) );
 713 }
 714
 715 static void build_iface_list( const statement_list_t *stmts, type_t **ifaces[], int *count )
 716 {
 717     const statement_t *stmt;
 718
 719     if (!stmts) return;
 720     LIST_FOR_EACH_ENTRY( stmt, stmts, const statement_t, entry )
 721     {
 722         if (stmt->type == STMT_LIBRARY)
 723             build_iface_list(stmt->u.lib->stmts, ifaces, count);
 724         else if (stmt->type == STMT_TYPE && stmt->u.type->type == RPC_FC_IP)
 725         {
 726             type_t *iface = stmt->u.type;
 727             if (iface->ref && need_proxy(iface))
 728             {
 729                 *ifaces = xrealloc( *ifaces, (*count + 1) * sizeof(*ifaces) );
 730                 (*ifaces)[(*count)++] = iface;
 731             }
 732         }
 733     }
 734 }
 735
 736 static type_t **sort_interfaces( const statement_list_t *stmts, int *count )
 737 {
 738     type_t **ifaces = NULL;
 739
 740     *count = 0;
 741     build_iface_list( stmts, &ifaces, count );
 742     qsort( ifaces, *count, sizeof(*ifaces), cmp_iid );
 743     return ifaces;
 744 }
 745
 746 void write_proxies(const statement_list_t *stmts)
 747 {
 748   int expr_eval_routines;
 749   char *file_id = proxy_token;
 750   int i, count, have_baseiid;
 751   unsigned int proc_offset = 0;
 752   type_t **interfaces;
 753
 754   if (!do_proxies) return;
 755   if (do_everything && !need_proxy_file(stmts)) return;
 756
 757   init_proxy(stmts);
 758   if(!proxy) return;
 759
 760   write_proxy_stmts(stmts, &proc_offset);
 761
 762   expr_eval_routines = write_expr_eval_routines(proxy, proxy_token);
 763   if (expr_eval_routines)
 764       write_expr_eval_routine_list(proxy, proxy_token);
 765   write_user_quad_list(proxy);
 766   write_stubdesc(expr_eval_routines);
 767
 768   print_proxy( "#if !defined(__RPC_WIN32__)\n");
 769   print_proxy( "#error Currently only Wine and WIN32 are supported.\n");
 770   print_proxy( "#endif\n");
 771   print_proxy( "\n");
 772   write_procformatstring(proxy, stmts, need_proxy);
 773   write_typeformatstring(proxy, stmts, need_proxy);
 774
 775   interfaces = sort_interfaces(stmts, &count);
 776   fprintf(proxy, "static const CInterfaceProxyVtbl* const _%s_ProxyVtblList[] =\n", file_id);
 777   fprintf(proxy, "{\n");
 778   for (i = 0; i < count; i++)
 779       fprintf(proxy, "    (const CInterfaceProxyVtbl*)&_%sProxyVtbl,\n", interfaces[i]->name);
 780   fprintf(proxy, "    0\n");
 781   fprintf(proxy, "};\n");
 782   fprintf(proxy, "\n");
 783
 784   fprintf(proxy, "static const CInterfaceStubVtbl* const _%s_StubVtblList[] =\n", file_id);
 785   fprintf(proxy, "{\n");
 786   for (i = 0; i < count; i++)
 787       fprintf(proxy, "    &_%sStubVtbl,\n", interfaces[i]->name);
 788   fprintf(proxy, "    0\n");
 789   fprintf(proxy, "};\n");
 790   fprintf(proxy, "\n");
 791
 792   fprintf(proxy, "static PCInterfaceName const _%s_InterfaceNamesList[] =\n", file_id);
 793   fprintf(proxy, "{\n");
 794   for (i = 0; i < count; i++)
 795       fprintf(proxy, "    \"%s\",\n", interfaces[i]->name);
 796   fprintf(proxy, "    0\n");
 797   fprintf(proxy, "};\n");
 798   fprintf(proxy, "\n");
 799
 800   if ((have_baseiid = does_any_iface(stmts, need_delegation)))
 801   {
 802       fprintf(proxy, "static const IID * _%s_BaseIIDList[] =\n", file_id);
 803       fprintf(proxy, "{\n");
 804       for (i = 0; i < count; i++)
 805       {
 806           if (need_delegation(interfaces[i]))
 807               fprintf( proxy, "    &IID_%s,  /* %s */\n", interfaces[i]->ref->name, interfaces[i]->name );
 808           else
 809               fprintf( proxy, "    0,\n" );
 810       }
 811       fprintf(proxy, "    0\n");
 812       fprintf(proxy, "};\n");
 813       fprintf(proxy, "\n");
 814   }
 815
 816   fprintf(proxy, "static int __stdcall _%s_IID_Lookup(const IID* pIID, int* pIndex)\n", file_id);
 817   fprintf(proxy, "{\n");
 818   fprintf(proxy, "    int low = 0, high = %d;\n", count - 1);
 819   fprintf(proxy, "\n");
 820   fprintf(proxy, "    while (low <= high)\n");
 821   fprintf(proxy, "    {\n");
 822   fprintf(proxy, "        int pos = (low + high) / 2;\n");
 823   fprintf(proxy, "        int res = IID_GENERIC_CHECK_IID(_%s, pIID, pos);\n", file_id);
 824   fprintf(proxy, "        if (!res) { *pIndex = pos; return 1; }\n");
 825   fprintf(proxy, "        if (res > 0) low = pos + 1;\n");
 826   fprintf(proxy, "        else high = pos - 1;\n");
 827   fprintf(proxy, "    }\n");
 828   fprintf(proxy, "    return 0;\n");
 829   fprintf(proxy, "}\n");
 830   fprintf(proxy, "\n");
 831
 832   fprintf(proxy, "const ExtendedProxyFileInfo %s_ProxyFileInfo DECLSPEC_HIDDEN =\n", file_id);
 833   fprintf(proxy, "{\n");
 834   fprintf(proxy, "    (const PCInterfaceProxyVtblList*)_%s_ProxyVtblList,\n", file_id);
 835   fprintf(proxy, "    (const PCInterfaceStubVtblList*)_%s_StubVtblList,\n", file_id);
 836   fprintf(proxy, "    _%s_InterfaceNamesList,\n", file_id);
 837   if (have_baseiid) fprintf(proxy, "    _%s_BaseIIDList,\n", file_id);
 838   else fprintf(proxy, "    0,\n");
 839   fprintf(proxy, "    _%s_IID_Lookup,\n", file_id);
 840   fprintf(proxy, "    %d,\n", count);
 841   fprintf(proxy, "    1,\n");
 842   fprintf(proxy, "    0,\n");
 843   fprintf(proxy, "    0,\n");
 844   fprintf(proxy, "    0,\n");
 845   fprintf(proxy, "    0\n");
 846   fprintf(proxy, "};\n");
 847
 848   fclose(proxy);
 849 }