git.oblomov.eu Git - wine/blob - tools/widl/client.c

   1 /*
   2  * IDL Compiler
   3  *
   4  * Copyright 2005 Eric Kohl
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  19  */
  20
  21 #include "config.h"
  22 #include "wine/port.h"
  23
  24 #include <stdio.h>
  25 #include <stdlib.h>
  26 #include <unistd.h>
  27 #include <string.h>
  28 #include <assert.h>
  29 #include <ctype.h>
  30 #include <signal.h>
  31
  32 #include "windef.h"
  33
  34 #include "widl.h"
  35 #include "utils.h"
  36 #include "parser.h"
  37 #include "header.h"
  38
  39 #include "widltypes.h"
  40 #include "typelib.h"
  41 #include "typelib_struct.h"
  42 #include "typegen.h"
  43
  44 #define END_OF_LIST(list)       \
  45   do {                          \
  46     if (list) {                 \
  47       while (NEXT_LINK(list))   \
  48         list = NEXT_LINK(list); \
  49     }                           \
  50   } while(0)
  51
  52 static FILE* client;
  53 static int indent = 0;
  54
  55 static int print_client( const char *format, ... )
  56 {
  57     va_list va;
  58     int i, r;
  59
  60     va_start(va, format);
  61     for (i = 0; i < indent; i++)
  62         fprintf(client, "    ");
  63     r = vfprintf(client, format, va);
  64     va_end(va);
  65     return r;
  66 }
  67
  68
  69 static void print_message_buffer_size(func_t *func)
  70 {
  71     unsigned int total_size = 0;
  72
  73     if (func->args)
  74     {
  75         var_t *var = func->args;
  76         while (NEXT_LINK(var)) var = NEXT_LINK(var);
  77         while (var)
  78         {
  79             unsigned int alignment;
  80
  81             total_size += get_required_buffer_size(var, &alignment);
  82             total_size += alignment;
  83
  84             var = PREV_LINK(var);
  85         }
  86     }
  87     fprintf(client, " %u", total_size);
  88 }
  89
  90
  91 static void write_function_stubs(type_t *iface)
  92 {
  93     func_t *func = iface->funcs;
  94     char *implicit_handle = get_attrp(iface->attrs, ATTR_IMPLICIT_HANDLE);
  95     int explicit_handle = is_attr(iface->attrs, ATTR_EXPLICIT_HANDLE);
  96     var_t *var;
  97     int method_count = 0;
  98     unsigned int proc_offset = 0;
  99     unsigned int type_offset = 2;
 100
 101     while (NEXT_LINK(func)) func = NEXT_LINK(func);
 102     while (func)
 103     {
 104         var_t *def = func->def;
 105         var_t* explicit_handle_var;
 106         unsigned int type_offset_func;
 107
 108         /* check for a defined binding handle */
 109         explicit_handle_var = get_explicit_handle_var(func);
 110         if (explicit_handle)
 111         {
 112             if (!explicit_handle_var)
 113             {
 114                 error("%s() does not define an explicit binding handle!\n", def->name);
 115                 return;
 116             }
 117         }
 118         else if (implicit_handle)
 119         {
 120             if (explicit_handle_var)
 121             {
 122                 error("%s() must not define a binding handle!\n", def->name);
 123                 return;
 124             }
 125         }
 126
 127         write_type(client, def->type, def, def->tname);
 128         fprintf(client, " ");
 129         write_name(client, def);
 130         fprintf(client, "(\n");
 131         indent++;
 132         if (func->args)
 133             write_args(client, func->args, iface->name, 0, TRUE);
 134         else
 135             print_client("void");
 136         fprintf(client, ")\n");
 137         indent--;
 138
 139         /* write the functions body */
 140         fprintf(client, "{\n");
 141         indent++;
 142
 143         /* declare return value '_RetVal' */
 144         if (!is_void(def->type, NULL))
 145         {
 146             print_client("");
 147             write_type(client, def->type, def, def->tname);
 148             fprintf(client, " _RetVal;\n");
 149         }
 150
 151         if (implicit_handle || explicit_handle_var)
 152             print_client("RPC_BINDING_HANDLE _Handle = 0;\n");
 153
 154         print_client("RPC_MESSAGE _RpcMessage;\n");
 155         print_client("MIDL_STUB_MESSAGE _StubMsg;\n");
 156         fprintf(client, "\n");
 157         print_client("RpcTryFinally\n");
 158         print_client("{\n");
 159         indent++;
 160
 161         print_client("NdrClientInitializeNew(\n");
 162         indent++;
 163         print_client("(PRPC_MESSAGE)&_RpcMessage,\n");
 164         print_client("(PMIDL_STUB_MESSAGE)&_StubMsg,\n");
 165         print_client("(PMIDL_STUB_DESC)&%s_StubDesc,\n", iface->name);
 166         print_client("%d);\n", method_count);
 167         indent--;
 168         fprintf(client, "\n");
 169
 170         if (implicit_handle)
 171         {
 172             print_client("_Handle = %s;\n", implicit_handle);
 173             fprintf(client, "\n");
 174         }
 175         else if (explicit_handle_var)
 176         {
 177             print_client("_Handle = %s;\n", explicit_handle_var->name);
 178             fprintf(client, "\n");
 179         }
 180
 181         /* emit the message buffer size */
 182         print_client("_StubMsg.BufferLength =");
 183         print_message_buffer_size(func);
 184         fprintf(client, ";\n");
 185
 186         print_client("NdrGetBuffer(\n");
 187         indent++;
 188         print_client("(PMIDL_STUB_MESSAGE)&_StubMsg,\n");
 189         print_client("_StubMsg.BufferLength,\n");
 190         if (implicit_handle || explicit_handle_var)
 191             print_client("_Handle);\n");
 192         else
 193             print_client("%s__MIDL_AutoBindHandle);\n", iface->name);
 194         indent--;
 195         fprintf(client, "\n");
 196
 197
 198         /* make a copy so we don't increment the type offset twice */
 199         type_offset_func = type_offset;
 200
 201         /* marshal arguments */
 202         marshall_arguments(client, indent, func, &type_offset_func, PASS_IN);
 203
 204         /* send/receive message */
 205         /* print_client("NdrNsSendReceive(\n"); */
 206         /* print_client("(unsigned char *)_StubMsg.Buffer,\n"); */
 207         /* print_client("(RPC_BINDING_HANDLE *) &%s__MIDL_AutoBindHandle);\n", iface->name); */
 208         print_client("NdrSendReceive(\n");
 209         indent++;
 210         print_client("(PMIDL_STUB_MESSAGE)&_StubMsg,\n");
 211         print_client("(unsigned char *)_StubMsg.Buffer);\n\n");
 212         indent--;
 213
 214         print_client("_StubMsg.BufferStart = (unsigned char *)_RpcMessage.Buffer;\n");
 215         print_client("_StubMsg.BufferEnd = _StubMsg.BufferStart + _RpcMessage.BufferLength;\n\n");
 216
 217         unmarshall_arguments(client, indent, func, &type_offset, PASS_OUT);
 218
 219         /* unmarshal return value */
 220         if (!is_void(def->type, NULL))
 221         {
 222             fprintf(client, "\n");
 223
 224             print_client("if ((_RpcMessage.DataRepresentation & 0x0000FFFFUL) != NDR_LOCAL_DATA_REPRESENTATION)\n");
 225             indent++;
 226             print_client("NdrConvert(\n");
 227             indent++;
 228             print_client("(PMIDL_STUB_MESSAGE)&_StubMsg,\n");
 229             print_client("(PFORMAT_STRING)&__MIDL_ProcFormatString.Format[%u]);\n", proc_offset);
 230             indent -= 2;
 231             fprintf(client, "\n");
 232
 233             print_client("_RetVal = *(");
 234             write_type(client, def->type, def, def->tname);
 235             fprintf(client, " *)_StubMsg.Buffer;\n");
 236             print_client("_StubMsg.Buffer += sizeof(");
 237             write_type(client, def->type, def, def->tname);
 238             fprintf(client, ");\n");
 239         }
 240
 241         /* update proc_offset */
 242         if (func->args)
 243         {
 244             var = func->args;
 245             while (NEXT_LINK(var)) var = NEXT_LINK(var);
 246             while (var)
 247             {
 248                 proc_offset += get_size_procformatstring_var(var);
 249                 var = PREV_LINK(var);
 250             }
 251         }
 252         if (!is_void(def->type, NULL))
 253             proc_offset += get_size_procformatstring_var(def);
 254
 255         indent--;
 256         print_client("}\n");
 257         print_client("RpcFinally\n");
 258         print_client("{\n");
 259         indent++;
 260
 261
 262         /* FIXME: emit client finally code */
 263
 264         print_client("NdrFreeBuffer((PMIDL_STUB_MESSAGE)&_StubMsg);\n");
 265
 266         indent--;
 267         print_client("}\n");
 268         print_client("RpcEndFinally\n");
 269
 270
 271         /* emit return code */
 272         if (!is_void(def->type, NULL))
 273         {
 274             fprintf(client, "\n");
 275             print_client("return _RetVal;\n");
 276         }
 277
 278         indent--;
 279         fprintf(client, "}\n");
 280         fprintf(client, "\n");
 281
 282         method_count++;
 283         func = PREV_LINK(func);
 284     }
 285 }
 286
 287
 288 static void write_bindinghandledecl(type_t *iface)
 289 {
 290     print_client("static RPC_BINDING_HANDLE %s__MIDL_AutoBindHandle;\n", iface->name);
 291     fprintf(client, "\n");
 292 }
 293
 294
 295 static void write_stubdescdecl(type_t *iface)
 296 {
 297     print_client("extern const MIDL_STUB_DESC %s_StubDesc;\n", iface->name);
 298     fprintf(client, "\n");
 299 }
 300
 301
 302 static void write_stubdescriptor(type_t *iface, int expr_eval_routines)
 303 {
 304     char *implicit_handle = get_attrp(iface->attrs, ATTR_IMPLICIT_HANDLE);
 305
 306     print_client("static const MIDL_STUB_DESC %s_StubDesc =\n", iface->name);
 307     print_client("{\n");
 308     indent++;
 309     print_client("(void *)& %s___RpcClientInterface,\n", iface->name);
 310     print_client("MIDL_user_allocate,\n");
 311     print_client("MIDL_user_free,\n");
 312     if (implicit_handle)
 313         print_client("&%s,\n", implicit_handle);
 314     else
 315         print_client("&%s__MIDL_AutoBindHandle,\n", iface->name);
 316     print_client("0,\n");
 317     print_client("0,\n");
 318     if (expr_eval_routines)
 319         print_client("ExprEvalRoutines,\n");
 320     else
 321         print_client("0,\n");
 322     print_client("0,\n");
 323     print_client("__MIDL_TypeFormatString.Format,\n");
 324     print_client("1, /* -error bounds_check flag */\n");
 325     print_client("0x10001, /* Ndr library version */\n");
 326     print_client("0,\n");
 327     print_client("0x50100a4, /* MIDL Version 5.1.164 */\n");
 328     print_client("0,\n");
 329     print_client("0,\n");
 330     print_client("0,  /* notify & notify_flag routine table */\n");
 331     print_client("1,  /* Flags */\n");
 332     print_client("0,  /* Reserved3 */\n");
 333     print_client("0,  /* Reserved4 */\n");
 334     print_client("0   /* Reserved5 */\n");
 335     indent--;
 336     print_client("};\n");
 337     fprintf(client, "\n");
 338 }
 339
 340
 341 static void write_clientinterfacedecl(type_t *iface)
 342 {
 343     unsigned long ver = get_attrv(iface->attrs, ATTR_VERSION);
 344     UUID *uuid = get_attrp(iface->attrs, ATTR_UUID);
 345
 346     print_client("static const RPC_CLIENT_INTERFACE %s___RpcClientInterface =\n", iface->name );
 347     print_client("{\n");
 348     indent++;
 349     print_client("sizeof(RPC_CLIENT_INTERFACE),\n");
 350     print_client("{{0x%08lx,0x%04x,0x%04x,{0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,0x%02x,0x%02x}},{%d,%d}},\n",
 351                  uuid->Data1, uuid->Data2, uuid->Data3, uuid->Data4[0], uuid->Data4[1],
 352                  uuid->Data4[2], uuid->Data4[3], uuid->Data4[4], uuid->Data4[5], uuid->Data4[6],
 353                  uuid->Data4[7], LOWORD(ver), HIWORD(ver));
 354     print_client("{{0x8a885d04,0x1ceb,0x11c9,{0x9f,0xe8,0x08,0x00,0x2b,0x10,0x48,0x60}},{2,0}},\n"); /* FIXME */
 355     print_client("0,\n");
 356     print_client("0,\n");
 357     print_client("0,\n");
 358     print_client("0,\n");
 359     print_client("0,\n");
 360     print_client("0,\n");
 361     indent--;
 362     print_client("};\n");
 363     print_client("RPC_IF_HANDLE %s_v%d_%d_c_ifspec = (RPC_IF_HANDLE)& %s___RpcClientInterface;\n",
 364                  iface->name, LOWORD(ver), HIWORD(ver), iface->name);
 365     fprintf(client, "\n");
 366 }
 367
 368
 369 static void write_formatdesc( const char *str )
 370 {
 371     print_client("typedef struct _MIDL_%s_FORMAT_STRING\n", str );
 372     print_client("{\n");
 373     indent++;
 374     print_client("short Pad;\n");
 375     print_client("unsigned char Format[%s_FORMAT_STRING_SIZE];\n", str);
 376     indent--;
 377     print_client("} MIDL_%s_FORMAT_STRING;\n", str);
 378     print_client("\n");
 379 }
 380
 381
 382 static void write_formatstringsdecl(type_t *iface)
 383 {
 384     int byte_count = 1;
 385
 386     print_client("#define TYPE_FORMAT_STRING_SIZE %d\n", 3); /* FIXME */
 387
 388     /* determine the proc format string size */
 389     if (iface->funcs)
 390     {
 391         func_t *func = iface->funcs;
 392         while (NEXT_LINK(func)) func = NEXT_LINK(func);
 393         while (func)
 394         {
 395             /* argument list size */
 396             if (func->args)
 397             {
 398                 var_t *var = func->args;
 399                 while (NEXT_LINK(var)) var = NEXT_LINK(var);
 400                 while (var)
 401                 {
 402                     byte_count += 2; /* FIXME: determine real size */
 403                     var = PREV_LINK(var);
 404                 }
 405             }
 406
 407             /* return value size */
 408             byte_count += 2; /* FIXME: determine real size */
 409             func = PREV_LINK(func);
 410         }
 411     }
 412     print_client("#define PROC_FORMAT_STRING_SIZE %d\n", byte_count);
 413
 414     fprintf(client, "\n");
 415     write_formatdesc("TYPE");
 416     write_formatdesc("PROC");
 417     fprintf(client, "\n");
 418     print_client("extern const MIDL_TYPE_FORMAT_STRING __MIDL_TypeFormatString;\n");
 419     print_client("extern const MIDL_PROC_FORMAT_STRING __MIDL_ProcFormatString;\n");
 420     print_client("\n");
 421 }
 422
 423
 424 static void write_implicithandledecl(type_t *iface)
 425 {
 426     char *implicit_handle = get_attrp(iface->attrs, ATTR_IMPLICIT_HANDLE);
 427
 428     if (implicit_handle)
 429     {
 430         fprintf(client, "handle_t %s;\n", implicit_handle);
 431         fprintf(client, "\n");
 432     }
 433 }
 434
 435
 436 static void init_client(void)
 437 {
 438     if (client) return;
 439     if (!(client = fopen(client_name, "w")))
 440         error("Could not open %s for output\n", client_name);
 441
 442     print_client("/*** Autogenerated by WIDL %s from %s - Do not edit ***/\n", WIDL_FULLVERSION, input_name);
 443     print_client("#include <string.h>\n");
 444     print_client("#ifdef _ALPHA_\n");
 445     print_client("#include <stdarg.h>\n");
 446     print_client("#endif\n");
 447     fprintf(client, "\n");
 448     print_client("#include \"%s\"\n", header_name);
 449     fprintf(client, "\n");
 450 }
 451
 452
 453 void write_client(ifref_t *ifaces)
 454 {
 455     ifref_t *iface = ifaces;
 456
 457     if (!do_client)
 458         return;
 459     if (!iface)
 460         return;
 461     END_OF_LIST(iface);
 462
 463     init_client();
 464     if (!client)
 465         return;
 466
 467     while (iface)
 468     {
 469         fprintf(client, "/*****************************************************************************\n");
 470         fprintf(client, " * %s interface\n", iface->iface->name);
 471         fprintf(client, " */\n");
 472         fprintf(client, "\n");
 473
 474         if (iface->iface->funcs)
 475         {
 476             int expr_eval_routines;
 477
 478             write_formatstringsdecl(iface->iface);
 479             write_implicithandledecl(iface->iface);
 480
 481             write_clientinterfacedecl(iface->iface);
 482             write_stubdescdecl(iface->iface);
 483             write_bindinghandledecl(iface->iface);
 484
 485             write_function_stubs(iface->iface);
 486
 487             print_client("#if !defined(__RPC_WIN32__)\n");
 488             print_client("#error  Invalid build platform for this stub.\n");
 489             print_client("#endif\n");
 490             fprintf(client, "\n");
 491
 492             write_procformatstring(client, iface->iface);
 493             write_typeformatstring(client, iface->iface);
 494
 495             fprintf(client, "\n");
 496
 497             expr_eval_routines = write_expr_eval_routines(client, iface->iface->name);
 498             if (expr_eval_routines)
 499                 write_expr_eval_routine_list(client, iface->iface->name);
 500             write_stubdescriptor(iface->iface, expr_eval_routines);
 501         }
 502
 503         iface = PREV_LINK(iface);
 504     }
 505
 506     fclose(client);
 507 }