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_foreach (existing_interfaces, (GFunc) g_object_unref, NULL);
 501   g_list_free (existing_interfaces);
 502   g_ptr_array_add (interface_names, NULL);
 503
 504   data->exported = TRUE;
 505
 506   /* now emit InterfacesAdded() for all the interfaces */
 507   g_dbus_object_manager_server_emit_interfaces_added (manager, data, (const gchar *const *) interface_names->pdata, object_path);
 508   g_ptr_array_unref (interface_names);
 509
 510   g_hash_table_insert (manager->priv->map_object_path_to_data,
 511                        g_strdup (object_path),
 512                        data);
 513 }
 514
 515 /**
 516  * g_dbus_object_manager_server_export:
 517  * @manager: A #GDBusObjectManagerServer.
 518  * @object: A #GDBusObjectSkeleton.
 519  *
 520  * Exports @object on @manager.
 521  *
 522  * If there is already a #GDBusObject exported at the object path,
 523  * then the old object is removed.
 524  *
 525  * The object path for @object must be in the hierarchy rooted by the
 526  * object path for @manager.
 527  *
 528  * Note that @manager will take a reference on @object for as long as
 529  * it is exported.
 530  *
 531  * Since: 2.30
 532  */
 533 void
 534 g_dbus_object_manager_server_export (GDBusObjectManagerServer  *manager,
 535                                      GDBusObjectSkeleton       *object)
 536 {
 537   g_return_if_fail (G_IS_DBUS_OBJECT_MANAGER_SERVER (manager));
 538   g_mutex_lock (&manager->priv->lock);
 539   g_dbus_object_manager_server_export_unlocked (manager, object,
 540                                                 g_dbus_object_get_object_path (G_DBUS_OBJECT (object)));
 541   g_mutex_unlock (&manager->priv->lock);
 542 }
 543
 544 /**
 545  * g_dbus_object_manager_server_export_uniquely:
 546  * @manager: A #GDBusObjectManagerServer.
 547  * @object: An object.
 548  *
 549  * Like g_dbus_object_manager_server_export() but appends a string of
 550  * the form <literal>_N</literal> (with N being a natural number) to
 551  * @object<!-- -->'s object path if an object with the given path
 552  * already exists. As such, the #GDBusObjectProxy:g-object-path property
 553  * of @object may be modified.
 554  *
 555  * Since: 2.30
 556  */
 557 void
 558 g_dbus_object_manager_server_export_uniquely (GDBusObjectManagerServer *manager,
 559                                               GDBusObjectSkeleton      *object)
 560 {
 561   gchar *orig_object_path;
 562   gchar *object_path;
 563   guint count;
 564   gboolean modified;
 565
 566   orig_object_path = g_strdup (g_dbus_object_get_object_path (G_DBUS_OBJECT (object)));
 567
 568   g_return_if_fail (G_IS_DBUS_OBJECT_MANAGER_SERVER (manager));
 569   g_return_if_fail (G_IS_DBUS_OBJECT (object));
 570   g_return_if_fail (g_str_has_prefix (orig_object_path, manager->priv->object_path_ending_in_slash));
 571
 572   g_mutex_lock (&manager->priv->lock);
 573
 574   object_path = g_strdup (orig_object_path);
 575   count = 1;
 576   modified = FALSE;
 577   while (TRUE)
 578     {
 579       RegistrationData *data;
 580       data = g_hash_table_lookup (manager->priv->map_object_path_to_data, object_path);
 581       if (data == NULL)
 582         {
 583           break;
 584         }
 585       g_free (object_path);
 586       object_path = g_strdup_printf ("%s_%d", orig_object_path, count++);
 587       modified = TRUE;
 588     }
 589
 590   g_dbus_object_manager_server_export_unlocked (manager, object, object_path);
 591
 592   g_mutex_unlock (&manager->priv->lock);
 593
 594   if (modified)
 595     g_dbus_object_skeleton_set_object_path (G_DBUS_OBJECT_SKELETON (object), object_path);
 596
 597   g_free (object_path);
 598   g_free (orig_object_path);
 599
 600 }
 601
 602 /* ---------------------------------------------------------------------------------------------------- */
 603
 604 static gboolean
 605 g_dbus_object_manager_server_unexport_unlocked (GDBusObjectManagerServer  *manager,
 606                                                 const gchar               *object_path)
 607 {
 608   RegistrationData *data;
 609   gboolean ret;
 610
 611   g_return_val_if_fail (G_IS_DBUS_OBJECT_MANAGER_SERVER (manager), FALSE);
 612   g_return_val_if_fail (g_variant_is_object_path (object_path), FALSE);
 613   g_return_val_if_fail (g_str_has_prefix (object_path, manager->priv->object_path_ending_in_slash), FALSE);
 614
 615   ret = FALSE;
 616
 617   data = g_hash_table_lookup (manager->priv->map_object_path_to_data, object_path);
 618   if (data != NULL)
 619     {
 620       GPtrArray *interface_names;
 621       GHashTableIter iter;
 622       const gchar *iface_name;
 623
 624       interface_names = g_ptr_array_new ();
 625       g_hash_table_iter_init (&iter, data->map_iface_name_to_iface);
 626       while (g_hash_table_iter_next (&iter, (gpointer) &iface_name, NULL))
 627         g_ptr_array_add (interface_names, (gpointer) iface_name);
 628       g_ptr_array_add (interface_names, NULL);
 629       /* now emit InterfacesRemoved() for all the interfaces */
 630       g_dbus_object_manager_server_emit_interfaces_removed (manager, data, (const gchar *const *) interface_names->pdata);
 631       g_ptr_array_unref (interface_names);
 632
 633       g_hash_table_remove (manager->priv->map_object_path_to_data, object_path);
 634       ret = TRUE;
 635     }
 636
 637   return ret;
 638 }
 639
 640 /**
 641  * g_dbus_object_manager_server_unexport:
 642  * @manager: A #GDBusObjectManagerServer.
 643  * @object_path: An object path.
 644  *
 645  * If @manager has an object at @path, removes the object. Otherwise
 646  * does nothing.
 647  *
 648  * Note that @object_path must be in the hierarchy rooted by the
 649  * object path for @manager.
 650  *
 651  * Returns: %TRUE if object at @object_path was removed, %FALSE otherwise.
 652  *
 653  * Since: 2.30
 654  */
 655 gboolean
 656 g_dbus_object_manager_server_unexport (GDBusObjectManagerServer  *manager,
 657                                        const gchar         *object_path)
 658 {
 659   gboolean ret;
 660   g_return_val_if_fail (G_IS_DBUS_OBJECT_MANAGER_SERVER (manager), FALSE);
 661   g_mutex_lock (&manager->priv->lock);
 662   ret = g_dbus_object_manager_server_unexport_unlocked (manager, object_path);
 663   g_mutex_unlock (&manager->priv->lock);
 664   return ret;
 665 }
 666
 667
 668 /* ---------------------------------------------------------------------------------------------------- */
 669
 670 static const GDBusArgInfo manager_interfaces_added_signal_info_arg0 =
 671 {
 672   -1,
 673   "object_path",
 674   "o",
 675   (GDBusAnnotationInfo**) NULL,
 676 };
 677
 678 static const GDBusArgInfo manager_interfaces_added_signal_info_arg1 =
 679 {
 680   -1,
 681   "interfaces_and_properties",
 682   "a{sa{sv}}",
 683   (GDBusAnnotationInfo**) NULL,
 684 };
 685
 686 static const GDBusArgInfo * const manager_interfaces_added_signal_info_arg_pointers[] =
 687 {
 688   &manager_interfaces_added_signal_info_arg0,
 689   &manager_interfaces_added_signal_info_arg1,
 690   NULL
 691 };
 692
 693 static const GDBusSignalInfo manager_interfaces_added_signal_info =
 694 {
 695   -1,
 696   "InterfacesAdded",
 697   (GDBusArgInfo**) &manager_interfaces_added_signal_info_arg_pointers,
 698   (GDBusAnnotationInfo**) NULL
 699 };
 700
 701 /* ---------- */
 702
 703 static const GDBusArgInfo manager_interfaces_removed_signal_info_arg0 =
 704 {
 705   -1,
 706   "object_path",
 707   "o",
 708   (GDBusAnnotationInfo**) NULL,
 709 };
 710
 711 static const GDBusArgInfo manager_interfaces_removed_signal_info_arg1 =
 712 {
 713   -1,
 714   "interfaces",
 715   "as",
 716   (GDBusAnnotationInfo**) NULL,
 717 };
 718
 719 static const GDBusArgInfo * const manager_interfaces_removed_signal_info_arg_pointers[] =
 720 {
 721   &manager_interfaces_removed_signal_info_arg0,
 722   &manager_interfaces_removed_signal_info_arg1,
 723   NULL
 724 };
 725
 726 static const GDBusSignalInfo manager_interfaces_removed_signal_info =
 727 {
 728   -1,
 729   "InterfacesRemoved",
 730   (GDBusArgInfo**) &manager_interfaces_removed_signal_info_arg_pointers,
 731   (GDBusAnnotationInfo**) NULL
 732 };
 733
 734 /* ---------- */
 735
 736 static const GDBusSignalInfo * const manager_signal_info_pointers[] =
 737 {
 738   &manager_interfaces_added_signal_info,
 739   &manager_interfaces_removed_signal_info,
 740   NULL
 741 };
 742
 743 /* ---------- */
 744
 745 static const GDBusArgInfo manager_get_all_method_info_out_arg0 =
 746 {
 747   -1,
 748   "object_paths_interfaces_and_properties",
 749   "a{oa{sa{sv}}}",
 750   (GDBusAnnotationInfo**) NULL,
 751 };
 752
 753 static const GDBusArgInfo * const manager_get_all_method_info_out_arg_pointers[] =
 754 {
 755   &manager_get_all_method_info_out_arg0,
 756   NULL
 757 };
 758
 759 static const GDBusMethodInfo manager_get_all_method_info =
 760 {
 761   -1,
 762   "GetManagedObjects",
 763   (GDBusArgInfo**) NULL,
 764   (GDBusArgInfo**) &manager_get_all_method_info_out_arg_pointers,
 765   (GDBusAnnotationInfo**) NULL
 766 };
 767
 768 static const GDBusMethodInfo * const manager_method_info_pointers[] =
 769 {
 770   &manager_get_all_method_info,
 771   NULL
 772 };
 773
 774 /* ---------- */
 775
 776 static const GDBusInterfaceInfo manager_interface_info =
 777 {
 778   -1,
 779   "org.freedesktop.DBus.ObjectManager",
 780   (GDBusMethodInfo **) manager_method_info_pointers,
 781   (GDBusSignalInfo **) manager_signal_info_pointers,
 782   (GDBusPropertyInfo **) NULL,
 783   (GDBusAnnotationInfo **) NULL
 784 };
 785
 786 static void
 787 manager_method_call (GDBusConnection       *connection,
 788                      const gchar           *sender,
 789                      const gchar           *object_path,
 790                      const gchar           *interface_name,
 791                      const gchar           *method_name,
 792                      GVariant              *parameters,
 793                      GDBusMethodInvocation *invocation,
 794                      gpointer               user_data)
 795 {
 796   GDBusObjectManagerServer *manager = G_DBUS_OBJECT_MANAGER_SERVER (user_data);
 797   GVariantBuilder array_builder;
 798   GHashTableIter object_iter;
 799   RegistrationData *data;
 800
 801   g_mutex_lock (&manager->priv->lock);
 802
 803   if (g_strcmp0 (method_name, "GetManagedObjects") == 0)
 804     {
 805       g_variant_builder_init (&array_builder, G_VARIANT_TYPE ("a{oa{sa{sv}}}"));
 806       g_hash_table_iter_init (&object_iter, manager->priv->map_object_path_to_data);
 807       while (g_hash_table_iter_next (&object_iter, NULL, (gpointer) &data))
 808         {
 809           GVariantBuilder interfaces_builder;
 810           GHashTableIter interface_iter;
 811           GDBusInterfaceSkeleton *iface;
 812           const gchar *iter_object_path;
 813
 814           g_variant_builder_init (&interfaces_builder, G_VARIANT_TYPE ("a{sa{sv}}"));
 815           g_hash_table_iter_init (&interface_iter, data->map_iface_name_to_iface);
 816           while (g_hash_table_iter_next (&interface_iter, NULL, (gpointer) &iface))
 817             {
 818               GVariant *properties = g_dbus_interface_skeleton_get_properties (iface);
 819               g_variant_builder_add (&interfaces_builder, "{s@a{sv}}",
 820                                      g_dbus_interface_skeleton_get_info (iface)->name,
 821                                      properties);
 822               g_variant_unref (properties);
 823             }
 824           iter_object_path = g_dbus_object_get_object_path (G_DBUS_OBJECT (data->object));
 825           g_variant_builder_add (&array_builder,
 826                                  "{oa{sa{sv}}}",
 827                                  iter_object_path,
 828                                  &interfaces_builder);
 829         }
 830
 831       g_dbus_method_invocation_return_value (invocation,
 832                                              g_variant_new ("(a{oa{sa{sv}}})",
 833                                                             &array_builder));
 834     }
 835   else
 836     {
 837       g_dbus_method_invocation_return_error (invocation,
 838                                              G_DBUS_ERROR,
 839                                              G_DBUS_ERROR_UNKNOWN_METHOD,
 840                                              "Unknown method %s - only GetManagedObjects() is supported",
 841                                              method_name);
 842     }
 843   g_mutex_unlock (&manager->priv->lock);
 844 }
 845
 846 static const GDBusInterfaceVTable manager_interface_vtable =
 847 {
 848   manager_method_call, /* handle_method_call */
 849   NULL, /* get_property */
 850   NULL  /* set_property */
 851 };
 852
 853 /* ---------------------------------------------------------------------------------------------------- */
 854
 855 static void
 856 g_dbus_object_manager_server_constructed (GObject *object)
 857 {
 858   GDBusObjectManagerServer *manager = G_DBUS_OBJECT_MANAGER_SERVER (object);
 859
 860   if (manager->priv->connection != NULL)
 861     export_all (manager);
 862
 863   if (G_OBJECT_CLASS (g_dbus_object_manager_server_parent_class)->constructed != NULL)
 864     G_OBJECT_CLASS (g_dbus_object_manager_server_parent_class)->constructed (object);
 865 }
 866
 867 static void
 868 g_dbus_object_manager_server_emit_interfaces_added (GDBusObjectManagerServer *manager,
 869                                                     RegistrationData   *data,
 870                                                     const gchar *const *interfaces,
 871                                                     const gchar *object_path)
 872 {
 873   GVariantBuilder array_builder;
 874   GError *error;
 875   guint n;
 876
 877   if (data->manager->priv->connection == NULL)
 878     goto out;
 879
 880   g_variant_builder_init (&array_builder, G_VARIANT_TYPE ("a{sa{sv}}"));
 881   for (n = 0; interfaces[n] != NULL; n++)
 882     {
 883       GDBusInterfaceSkeleton *iface;
 884       GVariant *properties;
 885
 886       iface = g_hash_table_lookup (data->map_iface_name_to_iface, interfaces[n]);
 887       g_assert (iface != NULL);
 888       properties = g_dbus_interface_skeleton_get_properties (iface);
 889       g_variant_builder_add (&array_builder, "{s@a{sv}}", interfaces[n], properties);
 890       g_variant_unref (properties);
 891     }
 892
 893   error = NULL;
 894   g_dbus_connection_emit_signal (data->manager->priv->connection,
 895                                  NULL, /* destination_bus_name */
 896                                  manager->priv->object_path,
 897                                  manager_interface_info.name,
 898                                  "InterfacesAdded",
 899                                  g_variant_new ("(oa{sa{sv}})",
 900                                                 object_path,
 901                                                 &array_builder),
 902                                  &error);
 903   g_assert_no_error (error);
 904  out:
 905   ;
 906 }
 907
 908 static void
 909 g_dbus_object_manager_server_emit_interfaces_removed (GDBusObjectManagerServer *manager,
 910                                                       RegistrationData   *data,
 911                                                       const gchar *const *interfaces)
 912 {
 913   GVariantBuilder array_builder;
 914   GError *error;
 915   guint n;
 916   const gchar *object_path;
 917
 918   if (data->manager->priv->connection == NULL)
 919     goto out;
 920
 921   g_variant_builder_init (&array_builder, G_VARIANT_TYPE ("as"));
 922   for (n = 0; interfaces[n] != NULL; n++)
 923     g_variant_builder_add (&array_builder, "s", interfaces[n]);
 924
 925   error = NULL;
 926   object_path = g_dbus_object_get_object_path (G_DBUS_OBJECT (data->object));
 927   g_dbus_connection_emit_signal (data->manager->priv->connection,
 928                                  NULL, /* destination_bus_name */
 929                                  manager->priv->object_path,
 930                                  manager_interface_info.name,
 931                                  "InterfacesRemoved",
 932                                  g_variant_new ("(oas)",
 933                                                 object_path,
 934                                                 &array_builder),
 935                                  &error);
 936   g_assert_no_error (error);
 937  out:
 938   ;
 939 }
 940
 941 /* ---------------------------------------------------------------------------------------------------- */
 942
 943 static GList *
 944 g_dbus_object_manager_server_get_objects (GDBusObjectManager  *_manager)
 945 {
 946   GDBusObjectManagerServer *manager = G_DBUS_OBJECT_MANAGER_SERVER (_manager);
 947   GList *ret;
 948   GHashTableIter iter;
 949   RegistrationData *data;
 950
 951   g_mutex_lock (&manager->priv->lock);
 952
 953   ret = NULL;
 954   g_hash_table_iter_init (&iter, manager->priv->map_object_path_to_data);
 955   while (g_hash_table_iter_next (&iter, NULL, (gpointer) &data))
 956     {
 957       ret = g_list_prepend (ret, g_object_ref (data->object));
 958     }
 959
 960   g_mutex_unlock (&manager->priv->lock);
 961
 962   return ret;
 963 }
 964
 965 static const gchar *
 966 g_dbus_object_manager_server_get_object_path (GDBusObjectManager *_manager)
 967 {
 968   GDBusObjectManagerServer *manager = G_DBUS_OBJECT_MANAGER_SERVER (_manager);
 969   return manager->priv->object_path;
 970 }
 971
 972 static GDBusObject *
 973 g_dbus_object_manager_server_get_object (GDBusObjectManager *_manager,
 974                                          const gchar        *object_path)
 975 {
 976   GDBusObjectManagerServer *manager = G_DBUS_OBJECT_MANAGER_SERVER (_manager);
 977   GDBusObject *ret;
 978   RegistrationData *data;
 979
 980   ret = NULL;
 981
 982   g_mutex_lock (&manager->priv->lock);
 983   data = g_hash_table_lookup (manager->priv->map_object_path_to_data, object_path);
 984   if (data != NULL)
 985     ret = g_object_ref (data->object);
 986   g_mutex_unlock (&manager->priv->lock);
 987
 988   return ret;
 989 }
 990
 991 static GDBusInterface *
 992 g_dbus_object_manager_server_get_interface  (GDBusObjectManager  *_manager,
 993                                              const gchar         *object_path,
 994                                              const gchar         *interface_name)
 995 {
 996   GDBusInterface *ret;
 997   GDBusObject *object;
 998
 999   ret = NULL;
1000
1001   object = g_dbus_object_manager_get_object (_manager, object_path);
1002   if (object == NULL)
1003     goto out;
1004
1005   ret = g_dbus_object_get_interface (object, interface_name);
1006   g_object_unref (object);
1007
1008  out:
1009   return ret;
1010 }
1011
1012 static void
1013 dbus_object_manager_interface_init (GDBusObjectManagerIface *iface)
1014 {
1015   iface->get_object_path = g_dbus_object_manager_server_get_object_path;
1016   iface->get_objects     = g_dbus_object_manager_server_get_objects;
1017   iface->get_object      = g_dbus_object_manager_server_get_object;
1018   iface->get_interface   = g_dbus_object_manager_server_get_interface;
1019 }
1020
1021 /* ---------------------------------------------------------------------------------------------------- */
1022
1023 static void
1024 export_all (GDBusObjectManagerServer *manager)
1025 {
1026   GHashTableIter iter;
1027   const gchar *object_path;
1028   RegistrationData *data;
1029   GHashTableIter iface_iter;
1030   GDBusInterfaceSkeleton *iface;
1031   GError *error;
1032
1033   g_return_if_fail (manager->priv->connection != NULL);
1034
1035   error = NULL;
1036   g_warn_if_fail (manager->priv->manager_reg_id == 0);
1037   manager->priv->manager_reg_id = g_dbus_connection_register_object (manager->priv->connection,
1038                                                                      manager->priv->object_path,
1039                                                                      (GDBusInterfaceInfo *) &manager_interface_info,
1040                                                                      &manager_interface_vtable,
1041                                                                      manager,
1042                                                                      NULL, /* user_data_free_func */
1043                                                                      &error);
1044   if (manager->priv->manager_reg_id == 0)
1045     {
1046       g_warning ("%s: Error registering manager at %s: %s",
1047                  G_STRLOC,
1048                  manager->priv->object_path,
1049                  error->message);
1050       g_error_free (error);
1051     }
1052
1053   g_hash_table_iter_init (&iter, manager->priv->map_object_path_to_data);
1054   while (g_hash_table_iter_next (&iter, (gpointer) &object_path, (gpointer) &data))
1055     {
1056       g_hash_table_iter_init (&iface_iter, data->map_iface_name_to_iface);
1057       while (g_hash_table_iter_next (&iface_iter, NULL, (gpointer) &iface))
1058         {
1059           g_warn_if_fail (g_dbus_interface_skeleton_get_connection (iface) == NULL);
1060           error = NULL;
1061           if (!g_dbus_interface_skeleton_export (iface,
1062                                                  manager->priv->connection,
1063                                                  object_path,
1064                                                  &error))
1065             {
1066               g_warning ("%s: Error registering object at %s with interface %s: %s",
1067                          G_STRLOC,
1068                          object_path,
1069                          g_dbus_interface_skeleton_get_info (iface)->name,
1070                          error->message);
1071               g_error_free (error);
1072             }
1073         }
1074     }
1075 }
1076
1077 static void
1078 unexport_all (GDBusObjectManagerServer *manager, gboolean only_manager)
1079 {
1080   GHashTableIter iter;
1081   RegistrationData *data;
1082   GHashTableIter iface_iter;
1083   GDBusInterfaceSkeleton *iface;
1084
1085   g_return_if_fail (manager->priv->connection != NULL);
1086
1087   g_warn_if_fail (manager->priv->manager_reg_id > 0);
1088   if (manager->priv->manager_reg_id > 0)
1089     {
1090       g_warn_if_fail (g_dbus_connection_unregister_object (manager->priv->connection,
1091                                                            manager->priv->manager_reg_id));
1092       manager->priv->manager_reg_id = 0;
1093     }
1094   if (only_manager)
1095     goto out;
1096
1097   g_hash_table_iter_init (&iter, manager->priv->map_object_path_to_data);
1098   while (g_hash_table_iter_next (&iter, NULL, (gpointer) &data))
1099     {
1100       g_hash_table_iter_init (&iface_iter, data->map_iface_name_to_iface);
1101       while (g_hash_table_iter_next (&iface_iter, NULL, (gpointer) &iface))
1102         {
1103           g_warn_if_fail (g_dbus_interface_skeleton_get_connection (iface) != NULL);
1104           g_dbus_interface_skeleton_unexport (iface);
1105         }
1106     }
1107  out:
1108   ;
1109 }
1110
1111 /* ---------------------------------------------------------------------------------------------------- */