droute/droute.c

   1 /*
   2  * AT-SPI - Assistive Technology Service Provider Interface
   3  * (Gnome Accessibility Project; http://developer.gnome.org/projects/gap)
   4  *
   5  * Copyright 2008 Novell, Inc.
   6  * Copyright 2008 Codethink Ltd.
   7  *
   8  * This library is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU Library General Public
  10  * License as published by the Free Software Foundation; either
  11  * version 2 of the License, or (at your option) any later version.
  12  *
  13  * This library 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 GNU
  16  * Library General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU Library General Public
  19  * License along with this library; if not, write to the
  20  * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
  21  * Boston, MA 02111-1307, USA.
  22  */
  23
  24 #include <stdlib.h>
  25 #include <string.h>
  26 #include <stdio.h>
  27
  28 #include "droute.h"
  29 #include "droute-pairhash.h"
  30
  31 #define CHUNKS_DEFAULT (512)
  32
  33 #define oom() g_error ("D-Bus out of memory, this message will fail anyway")
  34
  35 #if defined DROUTE_DEBUG
  36     #define _DROUTE_DEBUG(format, args...) g_print (format , ## args)
  37 #else
  38     #define _DROUTE_DEBUG(format, args...)
  39 #endif
  40
  41 struct _DRouteContext
  42 {
  43     GPtrArray            *registered_paths;
  44
  45     gchar                *introspect_string;
  46 };
  47
  48 struct _DRoutePath
  49 {
  50     DRouteContext        *cnx;
  51     gchar *path;
  52     gboolean prefix;
  53     GStringChunk         *chunks;
  54     GPtrArray            *interfaces;
  55     GPtrArray            *introspection;
  56     GHashTable           *methods;
  57     GHashTable           *properties;
  58
  59     DRouteIntrospectChildrenFunction introspect_children_cb;
  60     void *introspect_children_data;
  61     void                   *user_data;
  62     DRouteGetDatumFunction  get_datum;
  63 };
  64
  65 /*---------------------------------------------------------------------------*/
  66
  67 typedef struct PropertyPair
  68 {
  69     DRoutePropertyFunction get;
  70     DRoutePropertyFunction set;
  71 } PropertyPair;
  72
  73 /*---------------------------------------------------------------------------*/
  74
  75 static DBusHandlerResult
  76 handle_message (DBusConnection *bus, DBusMessage *message, void *user_data);
  77
  78 static DBusMessage *
  79 droute_object_does_not_exist_error (DBusMessage *message);
  80
  81 /*---------------------------------------------------------------------------*/
  82
  83 static DRoutePath *
  84 path_new (DRouteContext *cnx,
  85           const char *path,
  86           gboolean prefix,
  87           void    *user_data,
  88           DRouteIntrospectChildrenFunction introspect_children_cb,
  89           void *introspect_children_data,
  90           DRouteGetDatumFunction get_datum)
  91 {
  92     DRoutePath *new_path;
  93
  94     new_path = g_new0 (DRoutePath, 1);
  95     new_path->cnx = cnx;
  96     new_path->path = g_strdup (path);
  97     new_path->prefix = prefix;
  98     new_path->chunks = g_string_chunk_new (CHUNKS_DEFAULT);
  99     new_path->interfaces = g_ptr_array_new ();
 100     new_path->introspection = g_ptr_array_new ();
 101
 102     new_path->methods = g_hash_table_new_full ((GHashFunc)str_pair_hash,
 103                                                str_pair_equal,
 104                                                g_free,
 105                                                NULL);
 106
 107     new_path->properties = g_hash_table_new_full ((GHashFunc)str_pair_hash,
 108                                                   str_pair_equal,
 109                                                   g_free,
 110                                                   g_free);
 111
 112     new_path->introspect_children_cb = introspect_children_cb;
 113     new_path->introspect_children_data = introspect_children_data;
 114     new_path->user_data = user_data;
 115     new_path->get_datum = get_datum;
 116
 117     return new_path;
 118 }
 119
 120 static void
 121 path_free (DRoutePath *path, gpointer user_data)
 122 {
 123     g_free (path->path);
 124     g_string_chunk_free  (path->chunks);
 125     g_ptr_array_free     (path->interfaces, TRUE);
 126     g_free(g_ptr_array_free     (path->introspection, FALSE));
 127     g_hash_table_destroy (path->methods);
 128     g_hash_table_destroy (path->properties);
 129     g_free (path);
 130 }
 131
 132 static void *
 133 path_get_datum (DRoutePath *path, const gchar *pathstr)
 134 {
 135     if (path->get_datum != NULL)
 136         return (path->get_datum) (pathstr, path->user_data);
 137     else
 138         return path->user_data;
 139 }
 140
 141 /*---------------------------------------------------------------------------*/
 142
 143 DRouteContext *
 144 droute_new ()
 145 {
 146     DRouteContext *cnx;
 147
 148     cnx = g_new0 (DRouteContext, 1);
 149     cnx->registered_paths = g_ptr_array_new ();
 150
 151     return cnx;
 152 }
 153
 154 void
 155 droute_free (DRouteContext *cnx)
 156 {
 157     g_ptr_array_foreach (cnx->registered_paths, (GFunc) path_free, NULL);
 158     g_ptr_array_free (cnx->registered_paths, TRUE);
 159     g_free (cnx);
 160 }
 161
 162 /*---------------------------------------------------------------------------*/
 163
 164 /*---------------------------------------------------------------------------*/
 165
 166 static DBusObjectPathVTable droute_vtable =
 167 {
 168   NULL,
 169   &handle_message,
 170   NULL, NULL, NULL, NULL
 171 };
 172
 173 DRoutePath *
 174 droute_add_one (DRouteContext *cnx,
 175                 const char    *path,
 176                 const void    *data)
 177 {
 178     DRoutePath *new_path;
 179
 180     new_path = path_new (cnx, path, FALSE, (void *)data, NULL, NULL, NULL);
 181
 182     g_ptr_array_add (cnx->registered_paths, new_path);
 183     return new_path;
 184 }
 185
 186 DRoutePath *
 187 droute_add_many (DRouteContext *cnx,
 188                  const char    *path,
 189                  const void    *data,
 190                  DRouteIntrospectChildrenFunction introspect_children_cb,
 191                  void *introspect_children_data,
 192                  const DRouteGetDatumFunction get_datum)
 193 {
 194     DRoutePath *new_path;
 195
 196     new_path = path_new (cnx, path, TRUE, (void *) data,
 197                          introspect_children_cb, introspect_children_data,
 198                          get_datum);
 199
 200     g_ptr_array_add (cnx->registered_paths, new_path);
 201     return new_path;
 202 }
 203
 204 /*---------------------------------------------------------------------------*/
 205
 206 void
 207 droute_path_add_interface(DRoutePath *path,
 208                           const char *name,
 209                           const char *introspect,
 210                           const DRouteMethod   *methods,
 211                           const DRouteProperty *properties)
 212 {
 213     gchar *itf;
 214
 215     g_return_if_fail (name != NULL);
 216
 217     itf = g_string_chunk_insert (path->chunks, name);
 218     g_ptr_array_add (path->interfaces, itf);
 219     g_ptr_array_add (path->introspection, (gpointer) introspect);
 220
 221     for (; methods != NULL && methods->name != NULL; methods++)
 222       {
 223         gchar *meth;
 224
 225         meth = g_string_chunk_insert (path->chunks, methods->name);
 226         g_hash_table_insert (path->methods, str_pair_new (itf, meth), methods->func);
 227       }
 228
 229     for (; properties != NULL && properties->name != NULL; properties++)
 230       {
 231         gchar *prop;
 232         PropertyPair *pair;
 233
 234         prop = g_string_chunk_insert (path->chunks, properties->name);
 235         pair = g_new (PropertyPair, 1);
 236         pair->get = properties->get;
 237         pair->set = properties->set;
 238         g_hash_table_insert (path->properties, str_pair_new (itf, prop), pair);
 239       }
 240 }
 241
 242 /*---------------------------------------------------------------------------*/
 243
 244 /* The data structures don't support an efficient implementation of GetAll
 245  * and I don't really care.
 246  */
 247 static DBusMessage *
 248 impl_prop_GetAll (DBusMessage *message,
 249                   DRoutePath  *path,
 250                   const char  *pathstr)
 251 {
 252     DBusMessageIter iter, iter_dict, iter_dict_entry;
 253     DBusMessage *reply;
 254     DBusError error;
 255     GHashTableIter prop_iter;
 256
 257     StrPair *key;
 258     PropertyPair *value;
 259     gchar *iface;
 260
 261     void  *datum = path_get_datum (path, pathstr);
 262     if (!datum)
 263         return droute_object_does_not_exist_error (message);
 264
 265     dbus_error_init (&error);
 266     if (!dbus_message_get_args
 267                 (message, &error, DBUS_TYPE_STRING, &iface, DBUS_TYPE_INVALID))
 268         return dbus_message_new_error (message, DBUS_ERROR_FAILED, error.message);
 269
 270     reply = dbus_message_new_method_return (message);
 271     if (!reply)
 272         oom ();
 273
 274     dbus_message_iter_init_append (reply, &iter);
 275     if (!dbus_message_iter_open_container
 276                 (&iter, DBUS_TYPE_ARRAY, "{sv}", &iter_dict))
 277         oom ();
 278
 279     g_hash_table_iter_init (&prop_iter, path->properties);
 280     while (g_hash_table_iter_next (&prop_iter, (gpointer*)&key, (gpointer*)&value))
 281       {
 282         if (!g_strcmp0 (key->one, iface))
 283          {
 284            if (!value->get)
 285               continue;
 286            if (!dbus_message_iter_open_container
 287                         (&iter_dict, DBUS_TYPE_DICT_ENTRY, NULL, &iter_dict_entry))
 288               oom ();
 289            dbus_message_iter_append_basic (&iter_dict_entry, DBUS_TYPE_STRING,
 290                                            &key->two);
 291            (value->get) (&iter_dict_entry, datum);
 292            if (!dbus_message_iter_close_container (&iter_dict, &iter_dict_entry))
 293                oom ();
 294          }
 295       }
 296
 297     if (!dbus_message_iter_close_container (&iter, &iter_dict))
 298         oom ();
 299     return reply;
 300 }
 301
 302 static DBusMessage *
 303 impl_prop_GetSet (DBusMessage *message,
 304                   DRoutePath  *path,
 305                   const char  *pathstr,
 306                   gboolean     get)
 307 {
 308     DBusMessage *reply = NULL;
 309     DBusError error;
 310
 311     StrPair pair;
 312     PropertyPair *prop_funcs = NULL;
 313
 314     void *datum;
 315
 316     dbus_error_init (&error);
 317     if (!dbus_message_get_args (message,
 318                                 &error,
 319                                 DBUS_TYPE_STRING,
 320                                 &(pair.one),
 321                                 DBUS_TYPE_STRING,
 322                                 &(pair.two),
 323                                 DBUS_TYPE_INVALID))
 324         return dbus_message_new_error (message, DBUS_ERROR_FAILED, error.message);
 325
 326     _DROUTE_DEBUG ("DRoute (handle prop): %s|%s on %s\n", pair.one, pair.two, pathstr);
 327
 328     prop_funcs = (PropertyPair *) g_hash_table_lookup (path->properties, &pair);
 329     if (!prop_funcs)
 330 #ifdef DBUS_ERROR_UNKNOWN_PROPERTY
 331         return dbus_message_new_error (message, DBUS_ERROR_UNKNOWN_PROPERTY, "Property unavailable");
 332 #else
 333         return dbus_message_new_error (message, DBUS_ERROR_FAILED, "Property unavailable");
 334 #endif
 335
 336     datum = path_get_datum (path, pathstr);
 337     if (!datum)
 338         return droute_object_does_not_exist_error (message);
 339
 340     if (get && prop_funcs->get)
 341       {
 342
 343         DBusMessageIter iter;
 344
 345         _DROUTE_DEBUG ("DRoute (handle prop Get): %s|%s on %s\n", pair.one, pair.two, pathstr);
 346
 347         reply = dbus_message_new_method_return (message);
 348         dbus_message_iter_init_append (reply, &iter);
 349         if (!(prop_funcs->get) (&iter, datum))
 350           {
 351             dbus_message_unref (reply);
 352             reply = dbus_message_new_error (message, DBUS_ERROR_FAILED, "Get failed");
 353           }
 354       }
 355     else if (!get && prop_funcs->set)
 356       {
 357         DBusMessageIter iter;
 358
 359         _DROUTE_DEBUG ("DRoute (handle prop Get): %s|%s on %s\n", pair.one, pair.two, pathstr);
 360
 361         dbus_message_iter_init (message, &iter);
 362         /* Skip the interface and property name */
 363         dbus_message_iter_next(&iter);
 364         dbus_message_iter_next(&iter);
 365         (prop_funcs->set) (&iter, datum);
 366
 367         reply = dbus_message_new_method_return (message);
 368       }
 369 #ifdef DBUS_ERROR_PROPERTY_READ_ONLY
 370     else if (!get)
 371       {
 372         reply = dbus_message_new_error (message, DBUS_ERROR_PROPERTY_READ_ONLY, "Property is read-only");
 373       }
 374 #endif
 375     else
 376       {
 377         reply = dbus_message_new_error (message, DBUS_ERROR_FAILED, "Getter or setter unavailable");
 378       }
 379
 380     return reply;
 381 }
 382
 383 static DBusHandlerResult
 384 handle_dbus (DBusConnection *bus,
 385                    DBusMessage    *message,
 386                    const gchar    *iface,
 387                    const gchar    *member,
 388                    const gchar    *pathstr)
 389 {
 390   static int id = 1;
 391   char *id_str = (char *) g_malloc(40);
 392   DBusMessage *reply;
 393
 394   if (strcmp (iface, DBUS_INTERFACE_DBUS) != 0 ||
 395       strcmp (member, "Hello") != 0)
 396     {
 397       g_free (id_str);
 398       return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 399     }
 400
 401     /* TODO: Fix this hack (we don't handle wrap-around, for instance) */
 402     sprintf (id_str, ":1.%d", id++);
 403     reply = dbus_message_new_method_return (message);
 404     dbus_message_append_args (reply, DBUS_TYPE_STRING, &id_str, DBUS_TYPE_INVALID);
 405     dbus_connection_send (bus, reply, NULL);
 406   dbus_connection_flush (bus);
 407     dbus_message_unref (reply);
 408   g_free (id_str);
 409     return DBUS_HANDLER_RESULT_HANDLED;
 410 }
 411
 412 static DBusHandlerResult
 413 handle_properties (DBusConnection *bus,
 414                    DBusMessage    *message,
 415                    DRoutePath     *path,
 416                    const gchar    *iface,
 417                    const gchar    *member,
 418                    const gchar    *pathstr)
 419 {
 420     DBusMessage *reply = NULL;
 421     DBusHandlerResult result = DBUS_HANDLER_RESULT_HANDLED;
 422
 423     if (!g_strcmp0(member, "GetAll"))
 424        reply = impl_prop_GetAll (message, path, pathstr);
 425     else if (!g_strcmp0 (member, "Get"))
 426        reply = impl_prop_GetSet (message, path, pathstr, TRUE);
 427     else if (!g_strcmp0 (member, "Set"))
 428        reply = impl_prop_GetSet (message, path, pathstr, FALSE);
 429     else
 430        result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 431
 432     if (reply)
 433       {
 434         dbus_connection_send (bus, reply, NULL);
 435         dbus_message_unref (reply);
 436       }
 437
 438     return result;
 439 }
 440
 441 /*---------------------------------------------------------------------------*/
 442
 443 static const char *introspection_header =
 444 "<?xml version=\"1.0\"?>\n";
 445
 446 static const char *introspection_node_element =
 447 "<node name=\"%s\">\n";
 448
 449 static const char *introspection_footer =
 450 "</node>";
 451
 452 static DBusHandlerResult
 453 handle_introspection (DBusConnection *bus,
 454                       DBusMessage    *message,
 455                       DRoutePath     *path,
 456                       const gchar    *iface,
 457                       const gchar    *member,
 458                       const gchar    *pathstr)
 459 {
 460     GString *output;
 461     gchar *final;
 462     gint i;
 463
 464     DBusMessage *reply;
 465
 466     _DROUTE_DEBUG ("DRoute (handle introspection): %s\n", pathstr);
 467
 468     if (g_strcmp0 (member, "Introspect"))
 469         return DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 470
 471     output = g_string_new(introspection_header);
 472
 473     g_string_append_printf(output, introspection_node_element, pathstr);
 474
 475     if (!path->get_datum || path_get_datum (path, pathstr))
 476       {
 477         for (i=0; i < path->introspection->len; i++)
 478           {
 479             gchar *introspect = (gchar *) g_ptr_array_index (path->introspection, i);
 480             g_string_append (output, introspect);
 481           }
 482       }
 483
 484     if (path->introspect_children_cb)
 485       {
 486         gchar *children = (*path->introspect_children_cb) (pathstr, path->introspect_children_data);
 487         if (children)
 488           {
 489             g_string_append (output, children);
 490             g_free (children);
 491           }
 492       }
 493
 494     g_string_append(output, introspection_footer);
 495     final = g_string_free(output, FALSE);
 496
 497     reply = dbus_message_new_method_return (message);
 498     if (!reply)
 499         oom ();
 500     dbus_message_append_args(reply, DBUS_TYPE_STRING, &final,
 501                              DBUS_TYPE_INVALID);
 502     dbus_connection_send (bus, reply, NULL);
 503
 504     dbus_message_unref (reply);
 505     g_free(final);
 506     return DBUS_HANDLER_RESULT_HANDLED;
 507 }
 508
 509 /*---------------------------------------------------------------------------*/
 510
 511 static DBusHandlerResult
 512 handle_other (DBusConnection *bus,
 513               DBusMessage    *message,
 514               DRoutePath     *path,
 515               const gchar    *iface,
 516               const gchar    *member,
 517               const gchar    *pathstr)
 518 {
 519     gint result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 520
 521     StrPair pair;
 522     DRouteFunction func;
 523     DBusMessage *reply = NULL;
 524
 525     void *datum;
 526
 527     pair.one = iface;
 528     pair.two = member;
 529
 530     _DROUTE_DEBUG ("DRoute (handle other): %s|%s on %s\n", member, iface, pathstr);
 531
 532     func = (DRouteFunction) g_hash_table_lookup (path->methods, &pair);
 533     if (func != NULL)
 534       {
 535         datum = path_get_datum (path, pathstr);
 536         if (!datum)
 537             reply = droute_object_does_not_exist_error (message);
 538         else
 539             reply = (func) (bus, message, datum);
 540
 541         /* All D-Bus method calls must have a reply.
 542          * If one is not provided presume that the caller has already
 543          * sent one.
 544          */
 545         if (reply)
 546           {
 547             dbus_connection_send (bus, reply, NULL);
 548             dbus_message_unref (reply);
 549           }
 550         result = DBUS_HANDLER_RESULT_HANDLED;
 551       }
 552
 553     _DROUTE_DEBUG ("DRoute (handle other) (reply): type %d\n",
 554                    dbus_message_get_type(reply));
 555     return result;
 556 }
 557
 558 /*---------------------------------------------------------------------------*/
 559
 560 static DBusHandlerResult
 561 handle_message (DBusConnection *bus, DBusMessage *message, void *user_data)
 562 {
 563     DRoutePath *path = (DRoutePath *) user_data;
 564     const gchar *iface   = dbus_message_get_interface (message);
 565     const gchar *member  = dbus_message_get_member (message);
 566     const gint   type    = dbus_message_get_type (message);
 567     const gchar *pathstr = dbus_message_get_path (message);
 568
 569     DBusHandlerResult result = DBUS_HANDLER_RESULT_NOT_YET_HANDLED;
 570
 571     _DROUTE_DEBUG ("DRoute (handle message): %s|%s of type %d on %s\n", member, iface, type, pathstr);
 572
 573     /* Check for basic reasons not to handle */
 574     if (type   != DBUS_MESSAGE_TYPE_METHOD_CALL ||
 575         member == NULL ||
 576         iface  == NULL)
 577         return result;
 578
 579     if (!strcmp (pathstr, DBUS_PATH_DBUS))
 580         result = handle_dbus (bus, message, iface, member, pathstr);
 581     else if (!strcmp (iface, "org.freedesktop.DBus.Properties"))
 582         result = handle_properties (bus, message, path, iface, member, pathstr);
 583     else if (!strcmp (iface, "org.freedesktop.DBus.Introspectable"))
 584         result = handle_introspection (bus, message, path, iface, member, pathstr);
 585     else
 586         result = handle_other (bus, message, path, iface, member, pathstr);
 587 #if 0
 588     if (result == DBUS_HANDLER_RESULT_NOT_YET_HANDLED)
 589         g_print ("DRoute | Unhandled message: %s|%s of type %d on %s\n", member, iface, type, pathstr);
 590 #endif
 591
 592     return result;
 593 }
 594
 595 /*---------------------------------------------------------------------------*/
 596
 597 static DBusMessage *
 598 droute_object_does_not_exist_error (DBusMessage *message)
 599 {
 600     DBusMessage *reply;
 601     gchar       *errmsg;
 602
 603     errmsg= g_strdup_printf (
 604             "Method \"%s\" with signature \"%s\" on interface \"%s\" could not be processed as object %s does not exist\n",
 605             dbus_message_get_member (message),
 606             dbus_message_get_signature (message),
 607             dbus_message_get_interface (message),
 608             dbus_message_get_path (message));
 609 #ifdef DBUS_ERROR_UNKNOWN_OBJECT
 610     reply = dbus_message_new_error (message,
 611                                     DBUS_ERROR_UNKNOWN_OBJECT,
 612                                     errmsg);
 613 #else
 614     reply = dbus_message_new_error (message,
 615                                     DBUS_ERROR_FAILED,
 616                                     errmsg);
 617 #endif
 618     g_free (errmsg);
 619     return reply;
 620 }
 621
 622 /*---------------------------------------------------------------------------*/
 623
 624 DBusMessage *
 625 droute_not_yet_handled_error (DBusMessage *message)
 626 {
 627     DBusMessage *reply;
 628     gchar       *errmsg;
 629
 630     errmsg= g_strdup_printf (
 631             "Method \"%s\" with signature \"%s\" on interface \"%s\" doesn't exist\n",
 632             dbus_message_get_member (message),
 633             dbus_message_get_signature (message),
 634             dbus_message_get_interface (message));
 635     reply = dbus_message_new_error (message,
 636                                     DBUS_ERROR_UNKNOWN_METHOD,
 637                                     errmsg);
 638     g_free (errmsg);
 639     return reply;
 640 }
 641
 642 DBusMessage *
 643 droute_out_of_memory_error (DBusMessage *message)
 644 {
 645     DBusMessage *reply;
 646     gchar       *errmsg;
 647
 648     errmsg= g_strdup_printf (
 649             "Method \"%s\" with signature \"%s\" on interface \"%s\" could not be processed due to lack of memory\n",
 650             dbus_message_get_member (message),
 651             dbus_message_get_signature (message),
 652             dbus_message_get_interface (message));
 653     reply = dbus_message_new_error (message,
 654                                     DBUS_ERROR_NO_MEMORY,
 655                                     errmsg);
 656     g_free (errmsg);
 657     return reply;
 658 }
 659
 660 DBusMessage *
 661 droute_invalid_arguments_error (DBusMessage *message)
 662 {
 663     DBusMessage *reply;
 664     gchar       *errmsg;
 665
 666     errmsg= g_strdup_printf (
 667             "Method \"%s\" with signature \"%s\" on interface \"%s\" was supplied with invalid arguments\n",
 668             dbus_message_get_member (message),
 669             dbus_message_get_signature (message),
 670             dbus_message_get_interface (message));
 671     reply = dbus_message_new_error (message,
 672                                     DBUS_ERROR_INVALID_ARGS,
 673                                     errmsg);
 674     g_free (errmsg);
 675     return reply;
 676 }
 677
 678 void
 679 droute_path_register (DRoutePath *path, DBusConnection *bus)
 680 {
 681     if (path->prefix)
 682       dbus_connection_register_fallback (bus, path->path, &droute_vtable, path);
 683     else
 684       dbus_connection_register_object_path (bus, path->path,
 685                                             &droute_vtable, path);
 686 }
 687
 688 void
 689 droute_path_unregister (DRoutePath *path, DBusConnection *bus)
 690 {
 691   dbus_connection_unregister_object_path (bus, path->path);
 692 }
 693
 694 void
 695 droute_context_register (DRouteContext *cnx, DBusConnection *bus)
 696 {
 697     g_ptr_array_foreach (cnx->registered_paths, (GFunc) droute_path_register,
 698                          bus);
 699 }
 700
 701 void
 702 droute_context_unregister (DRouteContext *cnx, DBusConnection *bus)
 703 {
 704     g_ptr_array_foreach (cnx->registered_paths, (GFunc) droute_path_unregister,
 705                          bus);
 706 }
 707
 708 void
 709 droute_context_deregister (DRouteContext *cnx, DBusConnection *bus)
 710 {
 711     g_ptr_array_foreach (cnx->registered_paths, (GFunc) droute_path_unregister,
 712                          bus);
 713 }
 714
 715 void
 716 droute_intercept_dbus (DBusConnection *bus)
 717 {
 718     dbus_connection_register_object_path (bus, DBUS_PATH_DBUS,
 719                                           &droute_vtable, NULL);
 720 }
 721
 722 void
 723 droute_unintercept_dbus (DBusConnection *bus)
 724 {
 725     dbus_connection_unregister_object_path (bus, DBUS_PATH_DBUS);
 726 }
 727
 728 /*END------------------------------------------------------------------------*/