gdbus/object.c

   1 /*
   2  *
   3  *  D-Bus helper library
   4  *
   5  *  Copyright (C) 2004-2010  Marcel Holtmann <marcel@holtmann.org>
   6  *
   7  *
   8  *  This program is free software; you can redistribute it and/or modify
   9  *  it under the terms of the GNU General Public License as published by
  10  *  the Free Software Foundation; either version 2 of the License, or
  11  *  (at your option) any later version.
  12  *
  13  *  This program is distributed in the hope that it will be useful,
  14  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  *  GNU General Public License for more details.
  17  *
  18  *  You should have received a copy of the GNU General Public License
  19  *  along with this program; if not, write to the Free Software
  20  *  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
  21  *
  22  */
  23
  24 #ifdef HAVE_CONFIG_H
  25 #include <config.h>
  26 #endif
  27
  28 #include <stdio.h>
  29 #include <string.h>
  30
  31 #include <glib.h>
  32 #include <dbus/dbus.h>
  33
  34 #include "gdbus.h"
  35
  36 #define info(fmt...)
  37 #define error(fmt...)
  38 #define debug(fmt...)
  39
  40 struct generic_data {
  41         unsigned int refcount;
  42         GSList *interfaces;
  43         char *introspect;
  44 };
  45
  46 struct interface_data {
  47         char *name;
  48         const GDBusMethodTable *methods;
  49         const GDBusSignalTable *signals;
  50         const GDBusPropertyTable *properties;
  51         void *user_data;
  52         GDBusDestroyFunction destroy;
  53 };
  54
  55 struct security_data {
  56         GDBusPendingReply pending;
  57         DBusMessage *message;
  58         const GDBusMethodTable *method;
  59         void *iface_user_data;
  60 };
  61
  62 static void print_arguments(GString *gstr, const char *sig,
  63                                                 const char *direction)
  64 {
  65         int i;
  66
  67         for (i = 0; sig[i]; i++) {
  68                 char type[32];
  69                 int struct_level, dict_level;
  70                 unsigned int len;
  71                 gboolean complete;
  72
  73                 complete = FALSE;
  74                 struct_level = dict_level = 0;
  75                 memset(type, 0, sizeof(type));
  76
  77                 /* Gather enough data to have a single complete type */
  78                 for (len = 0; len < (sizeof(type) - 1) && sig[i]; len++, i++) {
  79                         switch (sig[i]){
  80                         case '(':
  81                                 struct_level++;
  82                                 break;
  83                         case ')':
  84                                 struct_level--;
  85                                 if (struct_level <= 0 && dict_level <= 0)
  86                                         complete = TRUE;
  87                                 break;
  88                         case '{':
  89                                 dict_level++;
  90                                 break;
  91                         case '}':
  92                                 dict_level--;
  93                                 if (struct_level <= 0 && dict_level <= 0)
  94                                         complete = TRUE;
  95                                 break;
  96                         case 'a':
  97                                 break;
  98                         default:
  99                                 if (struct_level <= 0 && dict_level <= 0)
 100                                         complete = TRUE;
 101                                 break;
 102                         }
 103
 104                         type[len] = sig[i];
 105
 106                         if (complete)
 107                                 break;
 108                 }
 109
 110
 111                 if (direction)
 112                         g_string_append_printf(gstr,
 113                                         "\t\t\t<arg type=\"%s\" direction=\"%s\"/>\n",
 114                                         type, direction);
 115                 else
 116                         g_string_append_printf(gstr,
 117                                         "\t\t\t<arg type=\"%s\"/>\n",
 118                                         type);
 119         }
 120 }
 121
 122 static void generate_interface_xml(GString *gstr, struct interface_data *iface)
 123 {
 124         const GDBusMethodTable *method;
 125         const GDBusSignalTable *signal;
 126
 127         for (method = iface->methods; method && method->name; method++) {
 128                 if (!strlen(method->signature) && !strlen(method->reply))
 129                         g_string_append_printf(gstr, "\t\t<method name=\"%s\"/>\n",
 130                                                                 method->name);
 131                 else {
 132                         g_string_append_printf(gstr, "\t\t<method name=\"%s\">\n",
 133                                                                 method->name);
 134                         print_arguments(gstr, method->signature, "in");
 135                         print_arguments(gstr, method->reply, "out");
 136                         g_string_append_printf(gstr, "\t\t</method>\n");
 137                 }
 138         }
 139
 140         for (signal = iface->signals; signal && signal->name; signal++) {
 141                 if (!strlen(signal->signature))
 142                         g_string_append_printf(gstr, "\t\t<signal name=\"%s\"/>\n",
 143                                                                 signal->name);
 144                 else {
 145                         g_string_append_printf(gstr, "\t\t<signal name=\"%s\">\n",
 146                                                                 signal->name);
 147                         print_arguments(gstr, signal->signature, NULL);
 148                         g_string_append_printf(gstr, "\t\t</signal>\n");
 149                 }
 150         }
 151 }
 152
 153 static void generate_introspection_xml(DBusConnection *conn,
 154                                 struct generic_data *data, const char *path)
 155 {
 156         GSList *list;
 157         GString *gstr;
 158         char **children;
 159         int i;
 160
 161         g_free(data->introspect);
 162
 163         gstr = g_string_new(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE);
 164
 165         g_string_append_printf(gstr, "<node name=\"%s\">\n", path);
 166
 167         for (list = data->interfaces; list; list = list->next) {
 168                 struct interface_data *iface = list->data;
 169
 170                 g_string_append_printf(gstr, "\t<interface name=\"%s\">\n",
 171                                                                 iface->name);
 172
 173                 generate_interface_xml(gstr, iface);
 174
 175                 g_string_append_printf(gstr, "\t</interface>\n");
 176         }
 177
 178         if (!dbus_connection_list_registered(conn, path, &children))
 179                 goto done;
 180
 181         for (i = 0; children[i]; i++)
 182                 g_string_append_printf(gstr, "\t<node name=\"%s\"/>\n",
 183                                                                 children[i]);
 184
 185         dbus_free_string_array(children);
 186
 187 done:
 188         g_string_append_printf(gstr, "</node>\n");
 189
 190         data->introspect = g_string_free(gstr, FALSE);
 191 }
 192
 193 static DBusMessage *introspect(DBusConnection *connection,
 194                                 DBusMessage *message, void *user_data)
 195 {
 196         struct generic_data *data = user_data;
 197         DBusMessage *reply;
 198
 199         if (!dbus_message_has_signature(message, DBUS_TYPE_INVALID_AS_STRING)) {
 200                 error("Unexpected signature to introspect call");
 201                 return NULL;
 202         }
 203
 204         if (!data->introspect)
 205                 generate_introspection_xml(connection, data,
 206                                                 dbus_message_get_path(message));
 207
 208         reply = dbus_message_new_method_return(message);
 209         if (!reply)
 210                 return NULL;
 211
 212         dbus_message_append_args(reply, DBUS_TYPE_STRING, &data->introspect,
 213                                         DBUS_TYPE_INVALID);
 214
 215         return reply;
 216 }
 217
 218 static DBusHandlerResult process_message(DBusConnection *connection,
 219                         DBusMessage *message, const GDBusMethodTable *method,
 220                                                         void *iface_user_data)
 221 {
 222         DBusMessage *reply;
 223
 224         reply = method->function(connection, message, iface_user_data);
 225
 226         if (method->flags & G_DBUS_METHOD_FLAG_NOREPLY) {
 227                 if (reply != NULL)
 228                         dbus_message_unref(reply);
 229                 return DBUS_HANDLER_RESULT_HANDLED;
 230         }
 231
 232         if (method->flags & G_DBUS_METHOD_FLAG_ASYNC) {
 233                 if (reply == NULL)
 234                         return DBUS_HANDLER_RESULT_HANDLED;
 235         }
 236
 237         if (reply == NULL)
 238                 return DBUS_HANDLER_RESULT_NEED_MEMORY;
 239
 240         dbus_connection_send(connection, reply, NULL);
 241         dbus_message_unref(reply);
 242
 243         return DBUS_HANDLER_RESULT_HANDLED;
 244 }
 245
 246 static GDBusPendingReply next_pending = 1;
 247 static GSList *pending_security = NULL;
 248
 249 static const GDBusSecurityTable *security_table = NULL;
 250
 251 void g_dbus_pending_success(DBusConnection *connection,
 252                                         GDBusPendingReply pending)
 253 {
 254         GSList *list;
 255
 256         for (list = pending_security; list; list = list->next) {
 257                 struct security_data *secdata = list->data;
 258                 DBusHandlerResult result;
 259
 260                 if (secdata->pending != pending)
 261                         continue;
 262
 263                 pending_security = g_slist_remove(pending_security, secdata);
 264
 265                 result = process_message(connection, secdata->message,
 266                                 secdata->method, secdata->iface_user_data);
 267
 268                 dbus_message_unref(secdata->message);
 269                 g_free(secdata);
 270                 return;
 271         }
 272 }
 273
 274 void g_dbus_pending_error_valist(DBusConnection *connection,
 275                                 GDBusPendingReply pending, const char *name,
 276                                         const char *format, va_list args)
 277 {
 278         GSList *list;
 279
 280         for (list = pending_security; list; list = list->next) {
 281                 struct security_data *secdata = list->data;
 282                 DBusMessage *reply;
 283
 284                 if (secdata->pending != pending)
 285                         continue;
 286
 287                 pending_security = g_slist_remove(pending_security, secdata);
 288
 289                 reply = g_dbus_create_error_valist(secdata->message,
 290                                                         name, format, args);
 291                 if (reply != NULL) {
 292                         dbus_connection_send(connection, reply, NULL);
 293                         dbus_message_unref(reply);
 294                 }
 295
 296                 dbus_message_unref(secdata->message);
 297                 g_free(secdata);
 298                 return;
 299         }
 300 }
 301
 302 void g_dbus_pending_error(DBusConnection *connection,
 303                                 GDBusPendingReply pending,
 304                                 const char *name, const char *format, ...)
 305 {
 306         va_list args;
 307
 308         va_start(args, format);
 309
 310         g_dbus_pending_error_valist(connection, pending, name, format, args);
 311
 312         va_end(args);
 313 }
 314
 315 static gboolean check_privilege(DBusConnection *conn, DBusMessage *msg,
 316                         const GDBusMethodTable *method, void *iface_user_data)
 317 {
 318         const GDBusSecurityTable *security;
 319
 320         for (security = security_table; security && security->function &&
 321                                         security->privilege; security++) {
 322                 struct security_data *secdata;
 323
 324                 if (security->privilege != method->privilege)
 325                         continue;
 326
 327                 secdata = g_new(struct security_data, 1);
 328                 secdata->pending = next_pending++;
 329                 secdata->message = dbus_message_ref(msg);
 330                 secdata->method = method;
 331                 secdata->iface_user_data = iface_user_data;
 332
 333                 pending_security = g_slist_prepend(pending_security, secdata);
 334
 335                 security->function(conn, secdata->pending);
 336
 337                 return TRUE;
 338         }
 339
 340         return FALSE;
 341 }
 342
 343 static void generic_unregister(DBusConnection *connection, void *user_data)
 344 {
 345         struct generic_data *data = user_data;
 346
 347         g_free(data->introspect);
 348         g_free(data);
 349 }
 350
 351 static struct interface_data *find_interface(GSList *interfaces,
 352                                                 const char *name)
 353 {
 354         GSList *list;
 355
 356         if (!name)
 357                 return NULL;
 358
 359         for (list = interfaces; list; list = list->next) {
 360                 struct interface_data *iface = list->data;
 361                 if (!strcmp(name, iface->name))
 362                         return iface;
 363         }
 364
 365         return NULL;
 366 }
 367
 368 static DBusHandlerResult generic_message(DBusConnection *connection,
 369                                         DBusMessage *message, void *user_data)
 370 {
 371         struct generic_data *data = user_data;
 372         struct interface_data *iface;
 373         const GDBusMethodTable *method;
 374         const char *interface;
 375
 376         interface = dbus_message_get_interface(message);
 377
 378         iface = find_interface(data->interfaces, interface);
 379         if (!iface)
 380                 return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 381
 382         for (method = iface->methods; method &&
 383                         method->name && method->function; method++) {
 384                 if (dbus_message_is_method_call(message, iface->name,
 385                                                         method->name) == FALSE)
 386                         continue;
 387
 388                 if (dbus_message_has_signature(message,
 389                                                 method->signature) == FALSE)
 390                         continue;
 391
 392                 if (check_privilege(connection, message, method,
 393                                                 iface->user_data) == TRUE)
 394                         return DBUS_HANDLER_RESULT_HANDLED;
 395
 396                 return process_message(connection, message, method,
 397                                                         iface->user_data);
 398         }
 399
 400         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 401 }
 402
 403 static DBusObjectPathVTable generic_table = {
 404         .unregister_function    = generic_unregister,
 405         .message_function       = generic_message,
 406 };
 407
 408 static void invalidate_parent_data(DBusConnection *conn, const char *child_path)
 409 {
 410         struct generic_data *data = NULL;
 411         char *parent_path, *slash;
 412
 413         parent_path = g_strdup(child_path);
 414         slash = strrchr(parent_path, '/');
 415         if (!slash)
 416                 goto done;
 417
 418         if (slash == parent_path && parent_path[1] != '\0')
 419                 parent_path[1] = '\0';
 420         else
 421                 *slash = '\0';
 422
 423         if (!strlen(parent_path))
 424                 goto done;
 425
 426         if (!dbus_connection_get_object_path_data(conn, parent_path,
 427                                                         (void *) &data)) {
 428                 invalidate_parent_data(conn, parent_path);
 429                 goto done;
 430         }
 431
 432         if (!data)
 433                 goto done;
 434
 435         g_free(data->introspect);
 436         data->introspect = NULL;
 437
 438 done:
 439         g_free(parent_path);
 440 }
 441
 442 static GDBusMethodTable introspect_methods[] = {
 443         { "Introspect", "",     "s", introspect },
 444         { }
 445 };
 446
 447 static void add_interface(struct generic_data *data, const char *name,
 448                                 const GDBusMethodTable *methods,
 449                                 const GDBusSignalTable *signals,
 450                                 const GDBusPropertyTable *properties,
 451                                 void *user_data,
 452                                 GDBusDestroyFunction destroy)
 453 {
 454         struct interface_data *iface;
 455
 456         iface = g_new0(struct interface_data, 1);
 457         iface->name = g_strdup(name);
 458         iface->methods = methods;
 459         iface->signals = signals;
 460         iface->properties = properties;
 461         iface->user_data = user_data;
 462         iface->destroy = destroy;
 463
 464         data->interfaces = g_slist_append(data->interfaces, iface);
 465 }
 466
 467 static struct generic_data *object_path_ref(DBusConnection *connection,
 468                                                         const char *path)
 469 {
 470         struct generic_data *data;
 471
 472         if (dbus_connection_get_object_path_data(connection, path,
 473                                                 (void *) &data) == TRUE) {
 474                 if (data != NULL) {
 475                         data->refcount++;
 476                         return data;
 477                 }
 478         }
 479
 480         data = g_new0(struct generic_data, 1);
 481         data->refcount = 1;
 482
 483         data->introspect = g_strdup(DBUS_INTROSPECT_1_0_XML_DOCTYPE_DECL_NODE "<node></node>");
 484
 485         if (!dbus_connection_register_object_path(connection, path,
 486                                                 &generic_table, data)) {
 487                 g_free(data->introspect);
 488                 g_free(data);
 489                 return NULL;
 490         }
 491
 492         invalidate_parent_data(connection, path);
 493
 494         add_interface(data, DBUS_INTERFACE_INTROSPECTABLE,
 495                         introspect_methods, NULL, NULL, data, NULL);
 496
 497         return data;
 498 }
 499
 500 static gboolean remove_interface(struct generic_data *data, const char *name)
 501 {
 502         struct interface_data *iface;
 503
 504         iface = find_interface(data->interfaces, name);
 505         if (!iface)
 506                 return FALSE;
 507
 508         data->interfaces = g_slist_remove(data->interfaces, iface);
 509
 510         if (iface->destroy)
 511                 iface->destroy(iface->user_data);
 512
 513         g_free(iface->name);
 514         g_free(iface);
 515
 516         return TRUE;
 517 }
 518
 519 static void object_path_unref(DBusConnection *connection, const char *path)
 520 {
 521         struct generic_data *data = NULL;
 522
 523         if (dbus_connection_get_object_path_data(connection, path,
 524                                                 (void *) &data) == FALSE)
 525                 return;
 526
 527         if (data == NULL)
 528                 return;
 529
 530         data->refcount--;
 531
 532         if (data->refcount > 0)
 533                 return;
 534
 535         remove_interface(data, DBUS_INTERFACE_INTROSPECTABLE);
 536
 537         invalidate_parent_data(connection, path);
 538
 539         dbus_connection_unregister_object_path(connection, path);
 540 }
 541
 542 static gboolean check_signal(DBusConnection *conn, const char *path,
 543                                 const char *interface, const char *name,
 544                                 const char **args)
 545 {
 546         struct generic_data *data = NULL;
 547         struct interface_data *iface;
 548         const GDBusSignalTable *signal;
 549
 550         *args = NULL;
 551         if (!dbus_connection_get_object_path_data(conn, path,
 552                                         (void *) &data) || !data) {
 553                 error("dbus_connection_emit_signal: path %s isn't registered",
 554                                 path);
 555                 return FALSE;
 556         }
 557
 558         iface = find_interface(data->interfaces, interface);
 559         if (!iface) {
 560                 error("dbus_connection_emit_signal: %s does not implement %s",
 561                                 path, interface);
 562                 return FALSE;
 563         }
 564
 565         for (signal = iface->signals; signal && signal->name; signal++) {
 566                 if (!strcmp(signal->name, name)) {
 567                         *args = signal->signature;
 568                         break;
 569                 }
 570         }
 571
 572         if (!*args) {
 573                 error("No signal named %s on interface %s", name, interface);
 574                 return FALSE;
 575         }
 576
 577         return TRUE;
 578 }
 579
 580 static dbus_bool_t emit_signal_valist(DBusConnection *conn,
 581                                                 const char *path,
 582                                                 const char *interface,
 583                                                 const char *name,
 584                                                 int first,
 585                                                 va_list var_args)
 586 {
 587         DBusMessage *signal;
 588         dbus_bool_t ret;
 589         const char *signature, *args;
 590
 591         if (!check_signal(conn, path, interface, name, &args))
 592                 return FALSE;
 593
 594         signal = dbus_message_new_signal(path, interface, name);
 595         if (!signal) {
 596                 error("Unable to allocate new %s.%s signal", interface,  name);
 597                 return FALSE;
 598         }
 599
 600         ret = dbus_message_append_args_valist(signal, first, var_args);
 601         if (!ret)
 602                 goto fail;
 603
 604         signature = dbus_message_get_signature(signal);
 605         if (strcmp(args, signature) != 0) {
 606                 error("%s.%s: expected signature'%s' but got '%s'",
 607                                 interface, name, args, signature);
 608                 ret = FALSE;
 609                 goto fail;
 610         }
 611
 612         ret = dbus_connection_send(conn, signal, NULL);
 613
 614 fail:
 615         dbus_message_unref(signal);
 616
 617         return ret;
 618 }
 619
 620 gboolean g_dbus_register_interface(DBusConnection *connection,
 621                                         const char *path, const char *name,
 622                                         const GDBusMethodTable *methods,
 623                                         const GDBusSignalTable *signals,
 624                                         const GDBusPropertyTable *properties,
 625                                         void *user_data,
 626                                         GDBusDestroyFunction destroy)
 627 {
 628         struct generic_data *data;
 629
 630         data = object_path_ref(connection, path);
 631         if (data == NULL)
 632                 return FALSE;
 633
 634         if (find_interface(data->interfaces, name)) {
 635                 object_path_unref(connection, path);
 636                 return FALSE;
 637         }
 638
 639         add_interface(data, name, methods, signals,
 640                         properties, user_data, destroy);
 641
 642         g_free(data->introspect);
 643         data->introspect = NULL;
 644
 645         return TRUE;
 646 }
 647
 648 gboolean g_dbus_unregister_interface(DBusConnection *connection,
 649                                         const char *path, const char *name)
 650 {
 651         struct generic_data *data = NULL;
 652
 653         if (!path)
 654                 return FALSE;
 655
 656         if (dbus_connection_get_object_path_data(connection, path,
 657                                                 (void *) &data) == FALSE)
 658                 return FALSE;
 659
 660         if (data == NULL)
 661                 return FALSE;
 662
 663         if (remove_interface(data, name) == FALSE)
 664                 return FALSE;
 665
 666         g_free(data->introspect);
 667         data->introspect = NULL;
 668
 669         object_path_unref(connection, path);
 670
 671         return TRUE;
 672 }
 673
 674 gboolean g_dbus_register_security(const GDBusSecurityTable *security)
 675 {
 676         if (security_table != NULL)
 677                 return FALSE;
 678
 679         security_table = security;
 680
 681         return TRUE;
 682 }
 683
 684 gboolean g_dbus_unregister_security(const GDBusSecurityTable *security)
 685 {
 686         security_table = NULL;
 687
 688         return TRUE;
 689 }
 690
 691 DBusMessage *g_dbus_create_error_valist(DBusMessage *message, const char *name,
 692                                         const char *format, va_list args)
 693 {
 694         char str[1024];
 695
 696         vsnprintf(str, sizeof(str), format, args);
 697
 698         return dbus_message_new_error(message, name, str);
 699 }
 700
 701 DBusMessage *g_dbus_create_error(DBusMessage *message, const char *name,
 702                                                 const char *format, ...)
 703 {
 704         va_list args;
 705         DBusMessage *reply;
 706
 707         va_start(args, format);
 708
 709         reply = g_dbus_create_error_valist(message, name, format, args);
 710
 711         va_end(args);
 712
 713         return reply;
 714 }
 715
 716 DBusMessage *g_dbus_create_reply_valist(DBusMessage *message,
 717                                                 int type, va_list args)
 718 {
 719         DBusMessage *reply;
 720
 721         reply = dbus_message_new_method_return(message);
 722         if (reply == NULL)
 723                 return NULL;
 724
 725         if (dbus_message_append_args_valist(reply, type, args) == FALSE) {
 726                 dbus_message_unref(reply);
 727                 return NULL;
 728         }
 729
 730         return reply;
 731 }
 732
 733 DBusMessage *g_dbus_create_reply(DBusMessage *message, int type, ...)
 734 {
 735         va_list args;
 736         DBusMessage *reply;
 737
 738         va_start(args, type);
 739
 740         reply = g_dbus_create_reply_valist(message, type, args);
 741
 742         va_end(args);
 743
 744         return reply;
 745 }
 746
 747 gboolean g_dbus_send_message(DBusConnection *connection, DBusMessage *message)
 748 {
 749         dbus_bool_t result;
 750
 751         if (dbus_message_get_type(message) == DBUS_MESSAGE_TYPE_METHOD_CALL)
 752                 dbus_message_set_no_reply(message, TRUE);
 753
 754         result = dbus_connection_send(connection, message, NULL);
 755
 756         dbus_message_unref(message);
 757
 758         return result;
 759 }
 760
 761 gboolean g_dbus_send_reply_valist(DBusConnection *connection,
 762                                 DBusMessage *message, int type, va_list args)
 763 {
 764         DBusMessage *reply;
 765
 766         reply = dbus_message_new_method_return(message);
 767         if (reply == NULL)
 768                 return FALSE;
 769
 770         if (dbus_message_append_args_valist(reply, type, args) == FALSE) {
 771                 dbus_message_unref(reply);
 772                 return FALSE;
 773         }
 774
 775         return g_dbus_send_message(connection, reply);
 776 }
 777
 778 gboolean g_dbus_send_reply(DBusConnection *connection,
 779                                 DBusMessage *message, int type, ...)
 780 {
 781         va_list args;
 782         gboolean result;
 783
 784         va_start(args, type);
 785
 786         result = g_dbus_send_reply_valist(connection, message, type, args);
 787
 788         va_end(args);
 789
 790         return result;
 791 }
 792
 793 gboolean g_dbus_emit_signal(DBusConnection *connection,
 794                                 const char *path, const char *interface,
 795                                 const char *name, int type, ...)
 796 {
 797         va_list args;
 798         gboolean result;
 799
 800         va_start(args, type);
 801
 802         result = emit_signal_valist(connection, path, interface,
 803                                                         name, type, args);
 804
 805         va_end(args);
 806
 807         return result;
 808 }
 809
 810 gboolean g_dbus_emit_signal_valist(DBusConnection *connection,
 811                                 const char *path, const char *interface,
 812                                 const char *name, int type, va_list args)
 813 {
 814         return emit_signal_valist(connection, path, interface,
 815                                                         name, type, args);
 816 }