gio/gdbusobjectmanagerserver.c

   1 /* GDBus - GLib D-Bus Library
   2  *
   3  * Copyright (C) 2008-2010 Red Hat, Inc.
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU Lesser General Public
   7  * License as published by the Free Software Foundation; either
   8  * version 2 of the License, or (at your option) any later version.
   9  *
  10  * This library is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * Lesser General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU Lesser General
  16  * Public License along with this library; if not, write to the
  17  * Free Software Foundation, Inc., 59 Temple Place, Suite 330,
  18  * Boston, MA 02111-1307, USA.
  19  *
  20  * Author: David Zeuthen <davidz@redhat.com>
  21  */
  22
  23 #include "config.h"
  24
  25 #include "gdbusobjectmanager.h"
  26 #include "gdbusobjectmanagerserver.h"
  27 #include "gdbusobject.h"
  28 #include "gdbusobjectskeleton.h"
  29 #include "gdbusinterfaceskeleton.h"
  30 #include "gdbusconnection.h"
  31 #include "gdbusintrospection.h"
  32 #include "gdbusmethodinvocation.h"
  33 #include "gdbuserror.h"
  34
  35 #include "glibintl.h"
  36
  37 /**
  38  * SECTION:gdbusobjectmanagerserver
  39  * @short_description: Service-side object manager
  40  * @include: gio/gio.h
  41  *
  42  * #GDBusObjectManagerServer is used to export #GDBusObject instances using
  43  * the standardized <ulink
  44  * url="http://dbus.freedesktop.org/doc/dbus-specification.html#standard-interfaces-objectmanager">org.freedesktop.DBus.ObjectManager</ulink>
  45  * interface. For example, remote D-Bus clients can get all objects
  46  * and properties in a single call. Additionally, any change in the
  47  * object hierarchy is broadcast using signals. This means that D-Bus
  48  * clients can keep caches up to date by only listening to D-Bus
  49  * signals.
  50  *
  51  * See #GDBusObjectManagerClient for the client-side code that is
  52  * intended to be used with #GDBusObjectManagerServer or any D-Bus
  53  * object implementing the org.freedesktop.DBus.ObjectManager
  54  * interface.
  55  */
  56
  57 typedef struct
  58 {
  59   GDBusObjectSkeleton *object;
  60   GDBusObjectManagerServer *manager;
  61   GHashTable *map_iface_name_to_iface;
  62   gboolean exported;
  63 } RegistrationData;
  64
  65 static void registration_data_free (RegistrationData *data);
  66
  67 static void export_all (GDBusObjectManagerServer *manager);
  68 static void unexport_all (GDBusObjectManagerServer *manager, gboolean only_manager);
  69
  70 static void g_dbus_object_manager_server_emit_interfaces_added (GDBusObjectManagerServer *manager,
  71                                                          RegistrationData   *data,
  72                                                          const gchar *const *interfaces,
  73                                                          const gchar *object_path);
  74
  75 static void g_dbus_object_manager_server_emit_interfaces_removed (GDBusObjectManagerServer *manager,
  76                                                            RegistrationData   *data,
  77                                                            const gchar *const *interfaces);
  78
  79 static gboolean g_dbus_object_manager_server_unexport_unlocked (GDBusObjectManagerServer  *manager,
  80                                                                 const gchar               *object_path);
  81
  82 struct _GDBusObjectManagerServerPrivate
  83 {
  84   GMutex lock;
  85   GDBusConnection *connection;
  86   gchar *object_path;
  87   gchar *object_path_ending_in_slash;
  88   GHashTable *map_object_path_to_data;
  89   guint manager_reg_id;
  90 };
  91
  92 enum
  93 {
  94   PROP_0,
  95   PROP_CONNECTION,
  96   PROP_OBJECT_PATH
  97 };
  98
  99 static void dbus_object_manager_interface_init (GDBusObjectManagerIface *iface);
 100
 101 G_DEFINE_TYPE_WITH_CODE (GDBusObjectManagerServer, g_dbus_object_manager_server, G_TYPE_OBJECT,
 102                          G_IMPLEMENT_INTERFACE (G_TYPE_DBUS_OBJECT_MANAGER, dbus_object_manager_interface_init));
 103
 104 static void g_dbus_object_manager_server_constructed (GObject *object);
 105
 106 static void
 107 g_dbus_object_manager_server_finalize (GObject *object)
 108 {
 109   GDBusObjectManagerServer *manager = G_DBUS_OBJECT_MANAGER_SERVER (object);
 110
 111   if (manager->priv->connection != NULL)
 112     {
 113       unexport_all (manager, TRUE);
 114       g_object_unref (manager->priv->connection);
 115     }
 116   g_hash_table_unref (manager->priv->map_object_path_to_data);
 117   g_free (manager->priv->object_path);
 118   g_free (manager->priv->object_path_ending_in_slash);
 119
 120   g_mutex_clear (&manager->priv->lock);
 121
 122   if (G_OBJECT_CLASS (g_dbus_object_manager_server_parent_class)->finalize != NULL)
 123     G_OBJECT_CLASS (g_dbus_object_manager_server_parent_class)->finalize (object);
 124 }
 125
 126 static void
 127 g_dbus_object_manager_server_get_property (GObject    *object,
 128                                            guint       prop_id,
 129                                            GValue     *value,
 130                                            GParamSpec *pspec)
 131 {
 132   GDBusObjectManagerServer *manager = G_DBUS_OBJECT_MANAGER_SERVER (object);
 133
 134   switch (prop_id)
 135     {
 136     case PROP_CONNECTION:
 137       g_mutex_lock (&manager->priv->lock);
 138       g_value_set_object (value, manager->priv->connection);
 139       g_mutex_unlock (&manager->priv->lock);
 140       break;
 141
 142     case PROP_OBJECT_PATH:
 143       g_value_set_string (value, g_dbus_object_manager_get_object_path (G_DBUS_OBJECT_MANAGER (manager)));
 144       break;
 145
 146     default:
 147       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 148       break;
 149     }
 150 }
 151
 152 static void
 153 g_dbus_object_manager_server_set_property (GObject       *object,
 154                                            guint          prop_id,
 155                                            const GValue  *value,
 156                                            GParamSpec    *pspec)
 157 {
 158   GDBusObjectManagerServer *manager = G_DBUS_OBJECT_MANAGER_SERVER (object);
 159
 160   switch (prop_id)
 161     {
 162     case PROP_CONNECTION:
 163       g_dbus_object_manager_server_set_connection (manager, g_value_get_object (value));
 164       break;
 165
 166     case PROP_OBJECT_PATH:
 167       g_assert (manager->priv->object_path == NULL);
 168       g_assert (g_variant_is_object_path (g_value_get_string (value)));
 169       manager->priv->object_path = g_value_dup_string (value);
 170       manager->priv->object_path_ending_in_slash = g_strdup_printf ("%s/", manager->priv->object_path);
 171       break;
 172
 173     default:
 174       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 175       break;
 176     }
 177 }
 178
 179 static void
 180 g_dbus_object_manager_server_class_init (GDBusObjectManagerServerClass *klass)
 181 {
 182   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
 183
 184   gobject_class->finalize     = g_dbus_object_manager_server_finalize;
 185   gobject_class->constructed  = g_dbus_object_manager_server_constructed;
 186   gobject_class->set_property = g_dbus_object_manager_server_set_property;
 187   gobject_class->get_property = g_dbus_object_manager_server_get_property;
 188
 189   /**
 190    * GDBusObjectManagerServer:connection:
 191    *
 192    * The #GDBusConnection to export objects on.
 193    *
 194    * Since: 2.30
 195    */
 196   g_object_class_install_property (gobject_class,
 197                                    PROP_CONNECTION,
 198                                    g_param_spec_object ("connection",
 199                                                         "Connection",
 200                                                         "The connection to export objects on",
 201                                                         G_TYPE_DBUS_CONNECTION,
 202                                                         G_PARAM_READABLE |
 203                                                         G_PARAM_WRITABLE |
 204                                                         G_PARAM_STATIC_STRINGS));
 205
 206   /**
 207    * GDBusObjectManagerServer:object-path:
 208    *
 209    * The object path to register the manager object at.
 210    *
 211    * Since: 2.30
 212    */
 213   g_object_class_install_property (gobject_class,
 214                                    PROP_OBJECT_PATH,
 215                                    g_param_spec_string ("object-path",
 216                                                         "Object Path",
 217                                                         "The object path to register the manager object at",
 218                                                         NULL,
 219                                                         G_PARAM_READABLE |
 220                                                         G_PARAM_WRITABLE |
 221                                                         G_PARAM_CONSTRUCT_ONLY |
 222                                                         G_PARAM_STATIC_STRINGS));
 223
 224   g_type_class_add_private (klass, sizeof (GDBusObjectManagerServerPrivate));
 225 }
 226
 227 static void
 228 g_dbus_object_manager_server_init (GDBusObjectManagerServer *manager)
 229 {
 230   manager->priv = G_TYPE_INSTANCE_GET_PRIVATE (manager,
 231                                                G_TYPE_DBUS_OBJECT_MANAGER_SERVER,
 232                                                GDBusObjectManagerServerPrivate);
 233   g_mutex_init (&manager->priv->lock);
 234   manager->priv->map_object_path_to_data = g_hash_table_new_full (g_str_hash,
 235                                                                   g_str_equal,
 236                                                                   g_free,
 237                                                                   (GDestroyNotify) registration_data_free);
 238 }
 239
 240 /**
 241  * g_dbus_object_manager_server_new:
 242  * @object_path: The object path to export the manager object at.
 243  *
 244  * Creates a new #GDBusObjectManagerServer object.
 245  *
 246  * The returned server isn't yet exported on any connection. To do so,
 247  * use g_dbus_object_manager_server_set_connection(). Normally you
 248  * want to export all of your objects before doing so to avoid <ulink
 249  * url="http://dbus.freedesktop.org/doc/dbus-specification.html#standard-interfaces-objectmanager">InterfacesAdded</ulink>
 250  * signals being emitted.
 251  *
 252  * Returns: A #GDBusObjectManagerServer object. Free with g_object_unref().
 253  *
 254  * Since: 2.30
 255  */
 256 GDBusObjectManagerServer *
 257 g_dbus_object_manager_server_new (const gchar     *object_path)
 258 {
 259   g_return_val_if_fail (g_variant_is_object_path (object_path), NULL);
 260   return G_DBUS_OBJECT_MANAGER_SERVER (g_object_new (G_TYPE_DBUS_OBJECT_MANAGER_SERVER,
 261                                                      "object-path", object_path,
 262                                                      NULL));
 263 }
 264
 265 /**
 266  * g_dbus_object_manager_server_set_connection:
 267  * @manager: A #GDBusObjectManagerServer.
 268  * @connection: (allow-none): A #GDBusConnection or %NULL.
 269  *
 270  * Exports all objects managed by @manager on @connection. If
 271  * @connection is %NULL, stops exporting objects.
 272  */
 273 void
 274 g_dbus_object_manager_server_set_connection (GDBusObjectManagerServer  *manager,
 275                                              GDBusConnection           *connection)
 276 {
 277   g_return_if_fail (G_IS_DBUS_OBJECT_MANAGER_SERVER (manager));
 278   g_return_if_fail (connection == NULL || G_IS_DBUS_CONNECTION (connection));
 279
 280   g_mutex_lock (&manager->priv->lock);
 281
 282   if (manager->priv->connection == connection)
 283     {
 284       g_mutex_unlock (&manager->priv->lock);
 285       goto out;
 286     }
 287
 288   if (manager->priv->connection != NULL)
 289     {
 290       unexport_all (manager, FALSE);
 291       g_object_unref (manager->priv->connection);
 292       manager->priv->connection = NULL;
 293     }
 294
 295   manager->priv->connection = connection != NULL ? g_object_ref (connection) : NULL;
 296   if (manager->priv->connection != NULL)
 297     export_all (manager);
 298
 299   g_mutex_unlock (&manager->priv->lock);
 300
 301   g_object_notify (G_OBJECT (manager), "connection");
 302  out:
 303   ;
 304 }
 305
 306 /**
 307  * g_dbus_object_manager_server_get_connection:
 308  * @manager: A #GDBusObjectManagerServer
 309  *
 310  * Gets the #GDBusConnection used by @manager.
 311  *
 312  * Returns: (transfer full): A #GDBusConnection object or %NULL if
 313  *   @manager isn't exported on a connection. The returned object should
 314  *   be freed with g_object_unref().
 315  *
 316  * Since: 2.30
 317  */
 318 GDBusConnection *
 319 g_dbus_object_manager_server_get_connection (GDBusObjectManagerServer *manager)
 320 {
 321   GDBusConnection *ret;
 322   g_return_val_if_fail (G_IS_DBUS_OBJECT_MANAGER_SERVER (manager), NULL);
 323   g_mutex_lock (&manager->priv->lock);
 324   ret = manager->priv->connection != NULL ? g_object_ref (manager->priv->connection) : NULL;
 325   g_mutex_unlock (&manager->priv->lock);
 326   return ret;
 327 }
 328
 329 /* ---------------------------------------------------------------------------------------------------- */
 330
 331 static void
 332 registration_data_export_interface (RegistrationData        *data,
 333                                     GDBusInterfaceSkeleton  *interface_skeleton,
 334                                     const gchar             *object_path)
 335 {
 336   GDBusInterfaceInfo *info;
 337   GError *error;
 338
 339   info = g_dbus_interface_skeleton_get_info (interface_skeleton);
 340   error = NULL;
 341   if (data->manager->priv->connection != NULL)
 342     {
 343       if (!g_dbus_interface_skeleton_export (interface_skeleton,
 344                                              data->manager->priv->connection,
 345                                              object_path,
 346                                              &error))
 347         {
 348           g_warning ("%s: Error registering object at %s with interface %s: %s",
 349                      G_STRLOC,
 350                      object_path,
 351                      info->name,
 352                      error->message);
 353           g_error_free (error);
 354         }
 355     }
 356
 357   g_assert (g_hash_table_lookup (data->map_iface_name_to_iface, info->name) == NULL);
 358   g_hash_table_insert (data->map_iface_name_to_iface,
 359                        info->name,
 360                        g_object_ref (interface_skeleton));
 361
 362   /* if we are already exported, then... */
 363   if (data->exported)
 364     {
 365       const gchar *interfaces[2];
 366       /* emit InterfacesAdded on the ObjectManager object */
 367       interfaces[0] = info->name;
 368       interfaces[1] = NULL;
 369       g_dbus_object_manager_server_emit_interfaces_added (data->manager, data, interfaces, object_path);
 370     }
 371 }
 372
 373 static void
 374 registration_data_unexport_interface (RegistrationData       *data,
 375                                       GDBusInterfaceSkeleton *interface_skeleton)
 376 {
 377   GDBusInterfaceInfo *info;
 378   GDBusInterfaceSkeleton *iface;
 379
 380   info = g_dbus_interface_skeleton_get_info (interface_skeleton);
 381   iface = g_hash_table_lookup (data->map_iface_name_to_iface, info->name);
 382   g_assert (iface != NULL);
 383
 384   if (data->manager->priv->connection != NULL)
 385     g_dbus_interface_skeleton_unexport (iface);
 386
 387   g_warn_if_fail (g_hash_table_remove (data->map_iface_name_to_iface, info->name));
 388
 389   /* if we are already exported, then... */
 390   if (data->exported)
 391     {
 392       const gchar *interfaces[2];
 393       /* emit InterfacesRemoved on the ObjectManager object */
 394       interfaces[0] = info->name;
 395       interfaces[1] = NULL;
 396       g_dbus_object_manager_server_emit_interfaces_removed (data->manager, data, interfaces);
 397     }
 398 }
 399
 400 /* ---------------------------------------------------------------------------------------------------- */
 401
 402 static void
 403 on_interface_added (GDBusObject    *object,
 404                     GDBusInterface *interface,
 405                     gpointer        user_data)
 406 {
 407   RegistrationData *data = user_data;
 408   const gchar *object_path;
 409   g_mutex_lock (&data->manager->priv->lock);
 410   object_path = g_dbus_object_get_object_path (G_DBUS_OBJECT (data->object));
 411   registration_data_export_interface (data, G_DBUS_INTERFACE_SKELETON (interface), object_path);
 412   g_mutex_unlock (&data->manager->priv->lock);
 413 }
 414
 415 static void
 416 on_interface_removed (GDBusObject    *object,
 417                       GDBusInterface *interface,
 418                       gpointer        user_data)
 419 {
 420   RegistrationData *data = user_data;
 421   g_mutex_lock (&data->manager->priv->lock);
 422   registration_data_unexport_interface (data, G_DBUS_INTERFACE_SKELETON (interface));
 423   g_mutex_unlock (&data->manager->priv->lock);
 424 }
 425
 426 /* ---------------------------------------------------------------------------------------------------- */
 427
 428
 429 static void
 430 registration_data_free (RegistrationData *data)
 431 {
 432   GHashTableIter iter;
 433   GDBusInterfaceSkeleton *iface;
 434
 435   data->exported = FALSE;
 436
 437   g_hash_table_iter_init (&iter, data->map_iface_name_to_iface);
 438   while (g_hash_table_iter_next (&iter, NULL, (gpointer) &iface))
 439     {
 440       if (data->manager->priv->connection != NULL)
 441         g_dbus_interface_skeleton_unexport (iface);
 442     }
 443
 444   g_signal_handlers_disconnect_by_func (data->object, G_CALLBACK (on_interface_added), data);
 445   g_signal_handlers_disconnect_by_func (data->object, G_CALLBACK (on_interface_removed), data);
 446   g_object_unref (data->object);
 447   g_hash_table_destroy (data->map_iface_name_to_iface);
 448   g_free (data);
 449 }
 450
 451 /* ---------------------------------------------------------------------------------------------------- */
 452
 453 static void
 454 g_dbus_object_manager_server_export_unlocked (GDBusObjectManagerServer  *manager,
 455                                               GDBusObjectSkeleton       *object,
 456                                               const gchar               *object_path)
 457 {
 458   RegistrationData *data;
 459   GList *existing_interfaces;
 460   GList *l;
 461   GPtrArray *interface_names;
 462
 463   g_return_if_fail (G_IS_DBUS_OBJECT_MANAGER_SERVER (manager));
 464   g_return_if_fail (G_IS_DBUS_OBJECT (object));
 465   g_return_if_fail (g_str_has_prefix (object_path, manager->priv->object_path_ending_in_slash));
 466
 467   interface_names = g_ptr_array_new ();
 468
 469   data = g_hash_table_lookup (manager->priv->map_object_path_to_data, object_path);
 470   if (data != NULL)
 471     g_dbus_object_manager_server_unexport_unlocked (manager, object_path);
 472
 473   data = g_new0 (RegistrationData, 1);
 474   data->object = g_object_ref (object);
 475   data->manager = manager;
 476   data->map_iface_name_to_iface = g_hash_table_new_full (g_str_hash,
 477                                                          g_str_equal,
 478                                                          NULL,
 479                                                          (GDestroyNotify) g_object_unref);
 480
 481   g_signal_connect (object,
 482                     "interface-added",
 483                     G_CALLBACK (on_interface_added),
 484                     data);
 485   g_signal_connect (object,
 486                     "interface-removed",
 487                     G_CALLBACK (on_interface_removed),
 488                     data);
 489
 490   /* Register all known interfaces - note that data->exported is FALSE so
 491    * we don't emit any InterfacesAdded signals.
 492    */
 493   existing_interfaces = g_dbus_object_get_interfaces (G_DBUS_OBJECT (object));
 494   for (l = existing_interfaces; l != NULL; l = l->next)
 495     {
 496       GDBusInterfaceSkeleton *interface_skeleton = G_DBUS_INTERFACE_SKELETON (l->data);
 497       registration_data_export_interface (data, interface_skeleton, object_path);
 498       g_ptr_array_add (interface_names, g_dbus_interface_skeleton_get_info (interface_skeleton)->name);
 499     }
 500   g_list_free_full (existing_interfaces, g_object_unref);
 501   g_ptr_array_add (interface_names, NULL);
 502
 503   data->exported = TRUE;
 504
 505   /* now emit InterfacesAdded() for all the interfaces */
 506   g_dbus_object_manager_server_emit_interfaces_added (manager, data, (const gchar *const *) interface_names->pdata, object_path);
 507   g_ptr_array_unref (interface_names);
 508
 509   g_hash_table_insert (manager->priv->map_object_path_to_data,
 510                        g_strdup (object_path),
 511                        data);
 512 }
 513
 514 /**
 515  * g_dbus_object_manager_server_export:
 516  * @manager: A #GDBusObjectManagerServer.
 517  * @object: A #GDBusObjectSkeleton.
 518  *
 519  * Exports @object on @manager.
 520  *
 521  * If there is already a #GDBusObject exported at the object path,
 522  * then the old object is removed.
 523  *
 524  * The object path for @object must be in the hierarchy rooted by the
 525  * object path for @manager.
 526  *
 527  * Note that @manager will take a reference on @object for as long as
 528  * it is exported.
 529  *
 530  * Since: 2.30
 531  */
 532 void
 533 g_dbus_object_manager_server_export (GDBusObjectManagerServer  *manager,
 534                                      GDBusObjectSkeleton       *object)
 535 {
 536   g_return_if_fail (G_IS_DBUS_OBJECT_MANAGER_SERVER (manager));
 537   g_mutex_lock (&manager->priv->lock);
 538   g_dbus_object_manager_server_export_unlocked (manager, object,
 539                                                 g_dbus_object_get_object_path (G_DBUS_OBJECT (object)));
 540   g_mutex_unlock (&manager->priv->lock);
 541 }
 542
 543 /**
 544  * g_dbus_object_manager_server_export_uniquely:
 545  * @manager: A #GDBusObjectManagerServer.
 546  * @object: An object.
 547  *
 548  * Like g_dbus_object_manager_server_export() but appends a string of
 549  * the form <literal>_N</literal> (with N being a natural number) to
 550  * @object<!-- -->'s object path if an object with the given path
 551  * already exists. As such, the #GDBusObjectProxy:g-object-path property
 552  * of @object may be modified.
 553  *
 554  * Since: 2.30
 555  */
 556 void
 557 g_dbus_object_manager_server_export_uniquely (GDBusObjectManagerServer *manager,
 558                                               GDBusObjectSkeleton      *object)
 559 {
 560   gchar *orig_object_path;
 561   gchar *object_path;
 562   guint count;
 563   gboolean modified;
 564
 565   orig_object_path = g_strdup (g_dbus_object_get_object_path (G_DBUS_OBJECT (object)));
 566
 567   g_return_if_fail (G_IS_DBUS_OBJECT_MANAGER_SERVER (manager));
 568   g_return_if_fail (G_IS_DBUS_OBJECT (object));
 569   g_return_if_fail (g_str_has_prefix (orig_object_path, manager->priv->object_path_ending_in_slash));
 570
 571   g_mutex_lock (&manager->priv->lock);
 572
 573   object_path = g_strdup (orig_object_path);
 574   count = 1;
 575   modified = FALSE;
 576   while (TRUE)
 577     {
 578       RegistrationData *data;
 579       data = g_hash_table_lookup (manager->priv->map_object_path_to_data, object_path);
 580       if (data == NULL)
 581         {
 582           break;
 583         }
 584       g_free (object_path);
 585       object_path = g_strdup_printf ("%s_%d", orig_object_path, count++);
 586       modified = TRUE;
 587     }
 588
 589   g_dbus_object_manager_server_export_unlocked (manager, object, object_path);
 590
 591   g_mutex_unlock (&manager->priv->lock);
 592
 593   if (modified)
 594     g_dbus_object_skeleton_set_object_path (G_DBUS_OBJECT_SKELETON (object), object_path);
 595
 596   g_free (object_path);
 597   g_free (orig_object_path);
 598
 599 }
 600
 601 /* ---------------------------------------------------------------------------------------------------- */
 602
 603 static gboolean
 604 g_dbus_object_manager_server_unexport_unlocked (GDBusObjectManagerServer  *manager,
 605                                                 const gchar               *object_path)
 606 {
 607   RegistrationData *data;
 608   gboolean ret;
 609
 610   g_return_val_if_fail (G_IS_DBUS_OBJECT_MANAGER_SERVER (manager), FALSE);
 611   g_return_val_if_fail (g_variant_is_object_path (object_path), FALSE);
 612   g_return_val_if_fail (g_str_has_prefix (object_path, manager->priv->object_path_ending_in_slash), FALSE);
 613
 614   ret = FALSE;
 615
 616   data = g_hash_table_lookup (manager->priv->map_object_path_to_data, object_path);
 617   if (data != NULL)
 618     {
 619       GPtrArray *interface_names;
 620       GHashTableIter iter;
 621       const gchar *iface_name;
 622
 623       interface_names = g_ptr_array_new ();
 624       g_hash_table_iter_init (&iter, data->map_iface_name_to_iface);
 625       while (g_hash_table_iter_next (&iter, (gpointer) &iface_name, NULL))
 626         g_ptr_array_add (interface_names, (gpointer) iface_name);
 627       g_ptr_array_add (interface_names, NULL);
 628       /* now emit InterfacesRemoved() for all the interfaces */
 629       g_dbus_object_manager_server_emit_interfaces_removed (manager, data, (const gchar *const *) interface_names->pdata);
 630       g_ptr_array_unref (interface_names);
 631
 632       g_hash_table_remove (manager->priv->map_object_path_to_data, object_path);
 633       ret = TRUE;
 634     }
 635
 636   return ret;
 637 }
 638
 639 /**
 640  * g_dbus_object_manager_server_unexport:
 641  * @manager: A #GDBusObjectManagerServer.
 642  * @object_path: An object path.
 643  *
 644  * If @manager has an object at @path, removes the object. Otherwise
 645  * does nothing.
 646  *
 647  * Note that @object_path must be in the hierarchy rooted by the
 648  * object path for @manager.
 649  *
 650  * Returns: %TRUE if object at @object_path was removed, %FALSE otherwise.
 651  *
 652  * Since: 2.30
 653  */
 654 gboolean
 655 g_dbus_object_manager_server_unexport (GDBusObjectManagerServer  *manager,
 656                                        const gchar         *object_path)
 657 {
 658   gboolean ret;
 659   g_return_val_if_fail (G_IS_DBUS_OBJECT_MANAGER_SERVER (manager), FALSE);
 660   g_mutex_lock (&manager->priv->lock);
 661   ret = g_dbus_object_manager_server_unexport_unlocked (manager, object_path);
 662   g_mutex_unlock (&manager->priv->lock);
 663   return ret;
 664 }
 665
 666
 667 /* ---------------------------------------------------------------------------------------------------- */
 668
 669 static const GDBusArgInfo manager_interfaces_added_signal_info_arg0 =
 670 {
 671   -1,
 672   "object_path",
 673   "o",
 674   (GDBusAnnotationInfo**) NULL,
 675 };
 676
 677 static const GDBusArgInfo manager_interfaces_added_signal_info_arg1 =
 678 {
 679   -1,
 680   "interfaces_and_properties",
 681   "a{sa{sv}}",
 682   (GDBusAnnotationInfo**) NULL,
 683 };
 684
 685 static const GDBusArgInfo * const manager_interfaces_added_signal_info_arg_pointers[] =
 686 {
 687   &manager_interfaces_added_signal_info_arg0,
 688   &manager_interfaces_added_signal_info_arg1,
 689   NULL
 690 };
 691
 692 static const GDBusSignalInfo manager_interfaces_added_signal_info =
 693 {
 694   -1,
 695   "InterfacesAdded",
 696   (GDBusArgInfo**) &manager_interfaces_added_signal_info_arg_pointers,
 697   (GDBusAnnotationInfo**) NULL
 698 };
 699
 700 /* ---------- */
 701
 702 static const GDBusArgInfo manager_interfaces_removed_signal_info_arg0 =
 703 {
 704   -1,
 705   "object_path",
 706   "o",
 707   (GDBusAnnotationInfo**) NULL,
 708 };
 709
 710 static const GDBusArgInfo manager_interfaces_removed_signal_info_arg1 =
 711 {
 712   -1,
 713   "interfaces",
 714   "as",
 715   (GDBusAnnotationInfo**) NULL,
 716 };
 717
 718 static const GDBusArgInfo * const manager_interfaces_removed_signal_info_arg_pointers[] =
 719 {
 720   &manager_interfaces_removed_signal_info_arg0,
 721   &manager_interfaces_removed_signal_info_arg1,
 722   NULL
 723 };
 724
 725 static const GDBusSignalInfo manager_interfaces_removed_signal_info =
 726 {
 727   -1,
 728   "InterfacesRemoved",
 729   (GDBusArgInfo**) &manager_interfaces_removed_signal_info_arg_pointers,
 730   (GDBusAnnotationInfo**) NULL
 731 };
 732
 733 /* ---------- */
 734
 735 static const GDBusSignalInfo * const manager_signal_info_pointers[] =
 736 {
 737   &manager_interfaces_added_signal_info,
 738   &manager_interfaces_removed_signal_info,
 739   NULL
 740 };
 741
 742 /* ---------- */
 743
 744 static const GDBusArgInfo manager_get_all_method_info_out_arg0 =
 745 {
 746   -1,
 747   "object_paths_interfaces_and_properties",
 748   "a{oa{sa{sv}}}",
 749   (GDBusAnnotationInfo**) NULL,
 750 };
 751
 752 static const GDBusArgInfo * const manager_get_all_method_info_out_arg_pointers[] =
 753 {
 754   &manager_get_all_method_info_out_arg0,
 755   NULL
 756 };
 757
 758 static const GDBusMethodInfo manager_get_all_method_info =
 759 {
 760   -1,
 761   "GetManagedObjects",
 762   (GDBusArgInfo**) NULL,
 763   (GDBusArgInfo**) &manager_get_all_method_info_out_arg_pointers,
 764   (GDBusAnnotationInfo**) NULL
 765 };
 766
 767 static const GDBusMethodInfo * const manager_method_info_pointers[] =
 768 {
 769   &manager_get_all_method_info,
 770   NULL
 771 };
 772
 773 /* ---------- */
 774
 775 static const GDBusInterfaceInfo manager_interface_info =
 776 {
 777   -1,
 778   "org.freedesktop.DBus.ObjectManager",
 779   (GDBusMethodInfo **) manager_method_info_pointers,
 780   (GDBusSignalInfo **) manager_signal_info_pointers,
 781   (GDBusPropertyInfo **) NULL,
 782   (GDBusAnnotationInfo **) NULL
 783 };
 784
 785 static void
 786 manager_method_call (GDBusConnection       *connection,
 787                      const gchar           *sender,
 788                      const gchar           *object_path,
 789                      const gchar           *interface_name,
 790                      const gchar           *method_name,
 791                      GVariant              *parameters,
 792                      GDBusMethodInvocation *invocation,
 793                      gpointer               user_data)
 794 {
 795   GDBusObjectManagerServer *manager = G_DBUS_OBJECT_MANAGER_SERVER (user_data);
 796   GVariantBuilder array_builder;
 797   GHashTableIter object_iter;
 798   RegistrationData *data;
 799
 800   g_mutex_lock (&manager->priv->lock);
 801
 802   if (g_strcmp0 (method_name, "GetManagedObjects") == 0)
 803     {
 804       g_variant_builder_init (&array_builder, G_VARIANT_TYPE ("a{oa{sa{sv}}}"));
 805       g_hash_table_iter_init (&object_iter, manager->priv->map_object_path_to_data);
 806       while (g_hash_table_iter_next (&object_iter, NULL, (gpointer) &data))
 807         {
 808           GVariantBuilder interfaces_builder;
 809           GHashTableIter interface_iter;
 810           GDBusInterfaceSkeleton *iface;
 811           const gchar *iter_object_path;
 812
 813           g_variant_builder_init (&interfaces_builder, G_VARIANT_TYPE ("a{sa{sv}}"));
 814           g_hash_table_iter_init (&interface_iter, data->map_iface_name_to_iface);
 815           while (g_hash_table_iter_next (&interface_iter, NULL, (gpointer) &iface))
 816             {
 817               GVariant *properties = g_dbus_interface_skeleton_get_properties (iface);
 818               g_variant_builder_add (&interfaces_builder, "{s@a{sv}}",
 819                                      g_dbus_interface_skeleton_get_info (iface)->name,
 820                                      properties);
 821               g_variant_unref (properties);
 822             }
 823           iter_object_path = g_dbus_object_get_object_path (G_DBUS_OBJECT (data->object));
 824           g_variant_builder_add (&array_builder,
 825                                  "{oa{sa{sv}}}",
 826                                  iter_object_path,
 827                                  &interfaces_builder);
 828         }
 829
 830       g_dbus_method_invocation_return_value (invocation,
 831                                              g_variant_new ("(a{oa{sa{sv}}})",
 832                                                             &array_builder));
 833     }
 834   else
 835     {
 836       g_dbus_method_invocation_return_error (invocation,
 837                                              G_DBUS_ERROR,
 838                                              G_DBUS_ERROR_UNKNOWN_METHOD,
 839                                              "Unknown method %s - only GetManagedObjects() is supported",
 840                                              method_name);
 841     }
 842   g_mutex_unlock (&manager->priv->lock);
 843 }
 844
 845 static const GDBusInterfaceVTable manager_interface_vtable =
 846 {
 847   manager_method_call, /* handle_method_call */
 848   NULL, /* get_property */
 849   NULL  /* set_property */
 850 };
 851
 852 /* ---------------------------------------------------------------------------------------------------- */
 853
 854 static void
 855 g_dbus_object_manager_server_constructed (GObject *object)
 856 {
 857   GDBusObjectManagerServer *manager = G_DBUS_OBJECT_MANAGER_SERVER (object);
 858
 859   if (manager->priv->connection != NULL)
 860     export_all (manager);
 861
 862   if (G_OBJECT_CLASS (g_dbus_object_manager_server_parent_class)->constructed != NULL)
 863     G_OBJECT_CLASS (g_dbus_object_manager_server_parent_class)->constructed (object);
 864 }
 865
 866 static void
 867 g_dbus_object_manager_server_emit_interfaces_added (GDBusObjectManagerServer *manager,
 868                                                     RegistrationData   *data,
 869                                                     const gchar *const *interfaces,
 870                                                     const gchar *object_path)
 871 {
 872   GVariantBuilder array_builder;
 873   GError *error;
 874   guint n;
 875
 876   if (data->manager->priv->connection == NULL)
 877     goto out;
 878
 879   g_variant_builder_init (&array_builder, G_VARIANT_TYPE ("a{sa{sv}}"));
 880   for (n = 0; interfaces[n] != NULL; n++)
 881     {
 882       GDBusInterfaceSkeleton *iface;
 883       GVariant *properties;
 884
 885       iface = g_hash_table_lookup (data->map_iface_name_to_iface, interfaces[n]);
 886       g_assert (iface != NULL);
 887       properties = g_dbus_interface_skeleton_get_properties (iface);
 888       g_variant_builder_add (&array_builder, "{s@a{sv}}", interfaces[n], properties);
 889       g_variant_unref (properties);
 890     }
 891
 892   error = NULL;
 893   g_dbus_connection_emit_signal (data->manager->priv->connection,
 894                                  NULL, /* destination_bus_name */
 895                                  manager->priv->object_path,
 896                                  manager_interface_info.name,
 897                                  "InterfacesAdded",
 898                                  g_variant_new ("(oa{sa{sv}})",
 899                                                 object_path,
 900                                                 &array_builder),
 901                                  &error);
 902   g_assert_no_error (error);
 903  out:
 904   ;
 905 }
 906
 907 static void
 908 g_dbus_object_manager_server_emit_interfaces_removed (GDBusObjectManagerServer *manager,
 909                                                       RegistrationData   *data,
 910                                                       const gchar *const *interfaces)
 911 {
 912   GVariantBuilder array_builder;
 913   GError *error;
 914   guint n;
 915   const gchar *object_path;
 916
 917   if (data->manager->priv->connection == NULL)
 918     goto out;
 919
 920   g_variant_builder_init (&array_builder, G_VARIANT_TYPE ("as"));
 921   for (n = 0; interfaces[n] != NULL; n++)
 922     g_variant_builder_add (&array_builder, "s", interfaces[n]);
 923
 924   error = NULL;
 925   object_path = g_dbus_object_get_object_path (G_DBUS_OBJECT (data->object));
 926   g_dbus_connection_emit_signal (data->manager->priv->connection,
 927                                  NULL, /* destination_bus_name */
 928                                  manager->priv->object_path,
 929                                  manager_interface_info.name,
 930                                  "InterfacesRemoved",
 931                                  g_variant_new ("(oas)",
 932                                                 object_path,
 933                                                 &array_builder),
 934                                  &error);
 935   g_assert_no_error (error);
 936  out:
 937   ;
 938 }
 939
 940 /* ---------------------------------------------------------------------------------------------------- */
 941
 942 static GList *
 943 g_dbus_object_manager_server_get_objects (GDBusObjectManager  *_manager)
 944 {
 945   GDBusObjectManagerServer *manager = G_DBUS_OBJECT_MANAGER_SERVER (_manager);
 946   GList *ret;
 947   GHashTableIter iter;
 948   RegistrationData *data;
 949
 950   g_mutex_lock (&manager->priv->lock);
 951
 952   ret = NULL;
 953   g_hash_table_iter_init (&iter, manager->priv->map_object_path_to_data);
 954   while (g_hash_table_iter_next (&iter, NULL, (gpointer) &data))
 955     {
 956       ret = g_list_prepend (ret, g_object_ref (data->object));
 957     }
 958
 959   g_mutex_unlock (&manager->priv->lock);
 960
 961   return ret;
 962 }
 963
 964 static const gchar *
 965 g_dbus_object_manager_server_get_object_path (GDBusObjectManager *_manager)
 966 {
 967   GDBusObjectManagerServer *manager = G_DBUS_OBJECT_MANAGER_SERVER (_manager);
 968   return manager->priv->object_path;
 969 }
 970
 971 static GDBusObject *
 972 g_dbus_object_manager_server_get_object (GDBusObjectManager *_manager,
 973                                          const gchar        *object_path)
 974 {
 975   GDBusObjectManagerServer *manager = G_DBUS_OBJECT_MANAGER_SERVER (_manager);
 976   GDBusObject *ret;
 977   RegistrationData *data;
 978
 979   ret = NULL;
 980
 981   g_mutex_lock (&manager->priv->lock);
 982   data = g_hash_table_lookup (manager->priv->map_object_path_to_data, object_path);
 983   if (data != NULL)
 984     ret = g_object_ref (data->object);
 985   g_mutex_unlock (&manager->priv->lock);
 986
 987   return ret;
 988 }
 989
 990 static GDBusInterface *
 991 g_dbus_object_manager_server_get_interface  (GDBusObjectManager  *_manager,
 992                                              const gchar         *object_path,
 993                                              const gchar         *interface_name)
 994 {
 995   GDBusInterface *ret;
 996   GDBusObject *object;
 997
 998   ret = NULL;
 999
1000   object = g_dbus_object_manager_get_object (_manager, object_path);
1001   if (object == NULL)
1002     goto out;
1003
1004   ret = g_dbus_object_get_interface (object, interface_name);
1005   g_object_unref (object);
1006
1007  out:
1008   return ret;
1009 }
1010
1011 static void
1012 dbus_object_manager_interface_init (GDBusObjectManagerIface *iface)
1013 {
1014   iface->get_object_path = g_dbus_object_manager_server_get_object_path;
1015   iface->get_objects     = g_dbus_object_manager_server_get_objects;
1016   iface->get_object      = g_dbus_object_manager_server_get_object;
1017   iface->get_interface   = g_dbus_object_manager_server_get_interface;
1018 }
1019
1020 /* ---------------------------------------------------------------------------------------------------- */
1021
1022 static void
1023 export_all (GDBusObjectManagerServer *manager)
1024 {
1025   GHashTableIter iter;
1026   const gchar *object_path;
1027   RegistrationData *data;
1028   GHashTableIter iface_iter;
1029   GDBusInterfaceSkeleton *iface;
1030   GError *error;
1031
1032   g_return_if_fail (manager->priv->connection != NULL);
1033
1034   error = NULL;
1035   g_warn_if_fail (manager->priv->manager_reg_id == 0);
1036   manager->priv->manager_reg_id = g_dbus_connection_register_object (manager->priv->connection,
1037                                                                      manager->priv->object_path,
1038                                                                      (GDBusInterfaceInfo *) &manager_interface_info,
1039                                                                      &manager_interface_vtable,
1040                                                                      manager,
1041                                                                      NULL, /* user_data_free_func */
1042                                                                      &error);
1043   if (manager->priv->manager_reg_id == 0)
1044     {
1045       g_warning ("%s: Error registering manager at %s: %s",
1046                  G_STRLOC,
1047                  manager->priv->object_path,
1048                  error->message);
1049       g_error_free (error);
1050     }
1051
1052   g_hash_table_iter_init (&iter, manager->priv->map_object_path_to_data);
1053   while (g_hash_table_iter_next (&iter, (gpointer) &object_path, (gpointer) &data))
1054     {
1055       g_hash_table_iter_init (&iface_iter, data->map_iface_name_to_iface);
1056       while (g_hash_table_iter_next (&iface_iter, NULL, (gpointer) &iface))
1057         {
1058           g_warn_if_fail (g_dbus_interface_skeleton_get_connection (iface) == NULL);
1059           error = NULL;
1060           if (!g_dbus_interface_skeleton_export (iface,
1061                                                  manager->priv->connection,
1062                                                  object_path,
1063                                                  &error))
1064             {
1065               g_warning ("%s: Error registering object at %s with interface %s: %s",
1066                          G_STRLOC,
1067                          object_path,
1068                          g_dbus_interface_skeleton_get_info (iface)->name,
1069                          error->message);
1070               g_error_free (error);
1071             }
1072         }
1073     }
1074 }
1075
1076 static void
1077 unexport_all (GDBusObjectManagerServer *manager, gboolean only_manager)
1078 {
1079   GHashTableIter iter;
1080   RegistrationData *data;
1081   GHashTableIter iface_iter;
1082   GDBusInterfaceSkeleton *iface;
1083
1084   g_return_if_fail (manager->priv->connection != NULL);
1085
1086   g_warn_if_fail (manager->priv->manager_reg_id > 0);
1087   if (manager->priv->manager_reg_id > 0)
1088     {
1089       g_warn_if_fail (g_dbus_connection_unregister_object (manager->priv->connection,
1090                                                            manager->priv->manager_reg_id));
1091       manager->priv->manager_reg_id = 0;
1092     }
1093   if (only_manager)
1094     goto out;
1095
1096   g_hash_table_iter_init (&iter, manager->priv->map_object_path_to_data);
1097   while (g_hash_table_iter_next (&iter, NULL, (gpointer) &data))
1098     {
1099       g_hash_table_iter_init (&iface_iter, data->map_iface_name_to_iface);
1100       while (g_hash_table_iter_next (&iface_iter, NULL, (gpointer) &iface))
1101         {
1102           g_warn_if_fail (g_dbus_interface_skeleton_get_connection (iface) != NULL);
1103           g_dbus_interface_skeleton_unexport (iface);
1104         }
1105     }
1106  out:
1107   ;
1108 }
1109
1110 /* ---------------------------------------------------------------------------------------------------- */