gio/gdbusproxy.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 <stdlib.h>
  26 #include <string.h>
  27
  28 #include "gdbusutils.h"
  29 #include "gdbusproxy.h"
  30 #include "gioenumtypes.h"
  31 #include "gdbusconnection.h"
  32 #include "gdbuserror.h"
  33 #include "gdbusprivate.h"
  34 #include "ginitable.h"
  35 #include "gasyncinitable.h"
  36 #include "gioerror.h"
  37 #include "gasyncresult.h"
  38 #include "gsimpleasyncresult.h"
  39 #include "gcancellable.h"
  40 #include "gdbusinterface.h"
  41
  42 #ifdef G_OS_UNIX
  43 #include "gunixfdlist.h"
  44 #endif
  45
  46 #include "glibintl.h"
  47
  48 /**
  49  * SECTION:gdbusproxy
  50  * @short_description: Client-side D-Bus interface proxy
  51  * @include: gio/gio.h
  52  *
  53  * #GDBusProxy is a base class used for proxies to access a D-Bus
  54  * interface on a remote object. A #GDBusProxy can be constructed for
  55  * both well-known and unique names.
  56  *
  57  * By default, #GDBusProxy will cache all properties (and listen to
  58  * changes) of the remote object, and proxy all signals that gets
  59  * emitted. This behaviour can be changed by passing suitable
  60  * #GDBusProxyFlags when the proxy is created. If the proxy is for a
  61  * well-known name, the property cache is flushed when the name owner
  62  * vanishes and reloaded when a name owner appears.
  63  *
  64  * If a #GDBusProxy is used for a well-known name, the owner of the
  65  * name is tracked and can be read from
  66  * #GDBusProxy:g-name-owner. Connect to the #GObject::notify signal to
  67  * get notified of changes. Additionally, only signals and property
  68  * changes emitted from the current name owner are considered and
  69  * calls are always sent to the current name owner. This avoids a
  70  * number of race conditions when the name is lost by one owner and
  71  * claimed by another. However, if no name owner currently exists,
  72  * then calls will be sent to the well-known name which may result in
  73  * the message bus launching an owner (unless
  74  * %G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START is set).
  75  *
  76  * The generic #GDBusProxy::g-properties-changed and
  77  * #GDBusProxy::g-signal signals are not very convenient to work
  78  * with. Therefore, the recommended way of working with proxies is to
  79  * subclass #GDBusProxy, and have more natural properties and signals
  80  * in your derived class. See <xref linkend="gdbus-example-gdbus-codegen"/>
  81  * for how this can easily be done using the
  82  * <command><link linkend="gdbus-codegen">gdbus-codegen</link></command>
  83  * tool.
  84  *
  85  * A #GDBusProxy instance can be used from multiple threads but note
  86  * that all signals (e.g. #GDBusProxy::g-signal, #GDBusProxy::g-properties-changed
  87  * and #GObject::notify) are emitted in the
  88  * <link linkend="g-main-context-push-thread-default">thread-default main loop</link>
  89  * of the thread where the instance was constructed.
  90  *
  91  * <example id="gdbus-wellknown-proxy"><title>GDBusProxy for a well-known-name</title><programlisting><xi:include xmlns:xi="http://www.w3.org/2001/XInclude" parse="text" href="../../../../gio/tests/gdbus-example-watch-proxy.c"><xi:fallback>FIXME: MISSING XINCLUDE CONTENT</xi:fallback></xi:include></programlisting></example>
  92  */
  93
  94 /* lock protecting the mutable properties: name_owner, timeout_msec,
  95  * expected_interface, and the properties hash table
  96  */
  97 G_LOCK_DEFINE_STATIC (properties_lock);
  98
  99 /* ---------------------------------------------------------------------------------------------------- */
 100
 101 G_LOCK_DEFINE_STATIC (signal_subscription_lock);
 102
 103 typedef struct
 104 {
 105   volatile gint ref_count;
 106   GDBusProxy *proxy;
 107 } SignalSubscriptionData;
 108
 109 static SignalSubscriptionData *
 110 signal_subscription_ref (SignalSubscriptionData *data)
 111 {
 112   g_atomic_int_inc (&data->ref_count);
 113   return data;
 114 }
 115
 116 static void
 117 signal_subscription_unref (SignalSubscriptionData *data)
 118 {
 119   if (g_atomic_int_dec_and_test (&data->ref_count))
 120     {
 121       g_slice_free (SignalSubscriptionData, data);
 122     }
 123 }
 124
 125 /* ---------------------------------------------------------------------------------------------------- */
 126
 127 struct _GDBusProxyPrivate
 128 {
 129   GBusType bus_type;
 130   GDBusProxyFlags flags;
 131   GDBusConnection *connection;
 132
 133   gchar *name;
 134   /* mutable, protected by properties_lock */
 135   gchar *name_owner;
 136   gchar *object_path;
 137   gchar *interface_name;
 138   /* mutable, protected by properties_lock */
 139   gint timeout_msec;
 140
 141   guint name_owner_changed_subscription_id;
 142
 143   GCancellable *get_all_cancellable;
 144
 145   /* gchar* -> GVariant*, protected by properties_lock */
 146   GHashTable *properties;
 147
 148   /* mutable, protected by properties_lock */
 149   GDBusInterfaceInfo *expected_interface;
 150
 151   guint properties_changed_subscription_id;
 152   guint signals_subscription_id;
 153
 154   gboolean initialized;
 155
 156   /* mutable, protected by properties_lock */
 157   GDBusObject *object;
 158
 159   SignalSubscriptionData *signal_subscription_data;
 160 };
 161
 162 enum
 163 {
 164   PROP_0,
 165   PROP_G_CONNECTION,
 166   PROP_G_BUS_TYPE,
 167   PROP_G_NAME,
 168   PROP_G_NAME_OWNER,
 169   PROP_G_FLAGS,
 170   PROP_G_OBJECT_PATH,
 171   PROP_G_INTERFACE_NAME,
 172   PROP_G_DEFAULT_TIMEOUT,
 173   PROP_G_INTERFACE_INFO
 174 };
 175
 176 enum
 177 {
 178   PROPERTIES_CHANGED_SIGNAL,
 179   SIGNAL_SIGNAL,
 180   LAST_SIGNAL,
 181 };
 182
 183 static guint signals[LAST_SIGNAL] = {0};
 184
 185 static void dbus_interface_iface_init (GDBusInterfaceIface *dbus_interface_iface);
 186 static void initable_iface_init       (GInitableIface *initable_iface);
 187 static void async_initable_iface_init (GAsyncInitableIface *async_initable_iface);
 188
 189 G_DEFINE_TYPE_WITH_CODE (GDBusProxy, g_dbus_proxy, G_TYPE_OBJECT,
 190                          G_ADD_PRIVATE (GDBusProxy)
 191                          G_IMPLEMENT_INTERFACE (G_TYPE_DBUS_INTERFACE, dbus_interface_iface_init)
 192                          G_IMPLEMENT_INTERFACE (G_TYPE_INITABLE, initable_iface_init)
 193                          G_IMPLEMENT_INTERFACE (G_TYPE_ASYNC_INITABLE, async_initable_iface_init))
 194
 195 static void
 196 g_dbus_proxy_dispose (GObject *object)
 197 {
 198   GDBusProxy *proxy = G_DBUS_PROXY (object);
 199   G_LOCK (signal_subscription_lock);
 200   if (proxy->priv->signal_subscription_data != NULL)
 201     {
 202       proxy->priv->signal_subscription_data->proxy = NULL;
 203       signal_subscription_unref (proxy->priv->signal_subscription_data);
 204       proxy->priv->signal_subscription_data = NULL;
 205     }
 206   G_UNLOCK (signal_subscription_lock);
 207
 208   G_OBJECT_CLASS (g_dbus_proxy_parent_class)->dispose (object);
 209 }
 210
 211 static void
 212 g_dbus_proxy_finalize (GObject *object)
 213 {
 214   GDBusProxy *proxy = G_DBUS_PROXY (object);
 215
 216   g_warn_if_fail (proxy->priv->get_all_cancellable == NULL);
 217
 218   if (proxy->priv->name_owner_changed_subscription_id > 0)
 219     g_dbus_connection_signal_unsubscribe (proxy->priv->connection,
 220                                           proxy->priv->name_owner_changed_subscription_id);
 221
 222   if (proxy->priv->properties_changed_subscription_id > 0)
 223     g_dbus_connection_signal_unsubscribe (proxy->priv->connection,
 224                                           proxy->priv->properties_changed_subscription_id);
 225
 226   if (proxy->priv->signals_subscription_id > 0)
 227     g_dbus_connection_signal_unsubscribe (proxy->priv->connection,
 228                                           proxy->priv->signals_subscription_id);
 229
 230   if (proxy->priv->connection != NULL)
 231     g_object_unref (proxy->priv->connection);
 232   g_free (proxy->priv->name);
 233   g_free (proxy->priv->name_owner);
 234   g_free (proxy->priv->object_path);
 235   g_free (proxy->priv->interface_name);
 236   if (proxy->priv->properties != NULL)
 237     g_hash_table_unref (proxy->priv->properties);
 238
 239   if (proxy->priv->expected_interface != NULL)
 240     {
 241       g_dbus_interface_info_cache_release (proxy->priv->expected_interface);
 242       g_dbus_interface_info_unref (proxy->priv->expected_interface);
 243     }
 244
 245   if (proxy->priv->object != NULL)
 246     g_object_remove_weak_pointer (G_OBJECT (proxy->priv->object), (gpointer *) &proxy->priv->object);
 247
 248   G_OBJECT_CLASS (g_dbus_proxy_parent_class)->finalize (object);
 249 }
 250
 251 static void
 252 g_dbus_proxy_get_property (GObject    *object,
 253                            guint       prop_id,
 254                            GValue     *value,
 255                            GParamSpec *pspec)
 256 {
 257   GDBusProxy *proxy = G_DBUS_PROXY (object);
 258
 259   switch (prop_id)
 260     {
 261     case PROP_G_CONNECTION:
 262       g_value_set_object (value, proxy->priv->connection);
 263       break;
 264
 265     case PROP_G_FLAGS:
 266       g_value_set_flags (value, proxy->priv->flags);
 267       break;
 268
 269     case PROP_G_NAME:
 270       g_value_set_string (value, proxy->priv->name);
 271       break;
 272
 273     case PROP_G_NAME_OWNER:
 274       g_value_take_string (value, g_dbus_proxy_get_name_owner (proxy));
 275       break;
 276
 277     case PROP_G_OBJECT_PATH:
 278       g_value_set_string (value, proxy->priv->object_path);
 279       break;
 280
 281     case PROP_G_INTERFACE_NAME:
 282       g_value_set_string (value, proxy->priv->interface_name);
 283       break;
 284
 285     case PROP_G_DEFAULT_TIMEOUT:
 286       g_value_set_int (value, g_dbus_proxy_get_default_timeout (proxy));
 287       break;
 288
 289     case PROP_G_INTERFACE_INFO:
 290       g_value_set_boxed (value, g_dbus_proxy_get_interface_info (proxy));
 291       break;
 292
 293     default:
 294       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 295       break;
 296     }
 297 }
 298
 299 static void
 300 g_dbus_proxy_set_property (GObject      *object,
 301                            guint         prop_id,
 302                            const GValue *value,
 303                            GParamSpec   *pspec)
 304 {
 305   GDBusProxy *proxy = G_DBUS_PROXY (object);
 306
 307   switch (prop_id)
 308     {
 309     case PROP_G_CONNECTION:
 310       proxy->priv->connection = g_value_dup_object (value);
 311       break;
 312
 313     case PROP_G_FLAGS:
 314       proxy->priv->flags = g_value_get_flags (value);
 315       break;
 316
 317     case PROP_G_NAME:
 318       proxy->priv->name = g_value_dup_string (value);
 319       break;
 320
 321     case PROP_G_OBJECT_PATH:
 322       proxy->priv->object_path = g_value_dup_string (value);
 323       break;
 324
 325     case PROP_G_INTERFACE_NAME:
 326       proxy->priv->interface_name = g_value_dup_string (value);
 327       break;
 328
 329     case PROP_G_DEFAULT_TIMEOUT:
 330       g_dbus_proxy_set_default_timeout (proxy, g_value_get_int (value));
 331       break;
 332
 333     case PROP_G_INTERFACE_INFO:
 334       g_dbus_proxy_set_interface_info (proxy, g_value_get_boxed (value));
 335       break;
 336
 337     case PROP_G_BUS_TYPE:
 338       proxy->priv->bus_type = g_value_get_enum (value);
 339       break;
 340
 341     default:
 342       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
 343       break;
 344     }
 345 }
 346
 347 static void
 348 g_dbus_proxy_class_init (GDBusProxyClass *klass)
 349 {
 350   GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
 351
 352   gobject_class->dispose      = g_dbus_proxy_dispose;
 353   gobject_class->finalize     = g_dbus_proxy_finalize;
 354   gobject_class->set_property = g_dbus_proxy_set_property;
 355   gobject_class->get_property = g_dbus_proxy_get_property;
 356
 357   /* Note that all property names are prefixed to avoid collisions with D-Bus property names
 358    * in derived classes */
 359
 360   /**
 361    * GDBusProxy:g-interface-info:
 362    *
 363    * Ensure that interactions with this proxy conform to the given
 364    * interface. This is mainly to ensure that malformed data received
 365    * from the other peer is ignored. The given #GDBusInterfaceInfo is
 366    * said to be the <emphasis>expected interface</emphasis>.
 367    *
 368    * The checks performed are:
 369    * <itemizedlist>
 370    *   <listitem><para>
 371    *     When completing a method call, if the type signature of
 372    *     the reply message isn't what's expected, the reply is
 373    *     discarded and the #GError is set to %G_IO_ERROR_INVALID_ARGUMENT.
 374    *   </para></listitem>
 375    *   <listitem><para>
 376    *     Received signals that have a type signature mismatch are dropped and
 377    *     a warning is logged via g_warning().
 378    *   </para></listitem>
 379    *   <listitem><para>
 380    *     Properties received via the initial <literal>GetAll()</literal> call
 381    *     or via the <literal>::PropertiesChanged</literal> signal (on the
 382    *     <ulink url="http://dbus.freedesktop.org/doc/dbus-specification.html#standard-interfaces-properties">org.freedesktop.DBus.Properties</ulink> interface) or
 383    *     set using g_dbus_proxy_set_cached_property() with a type signature
 384    *     mismatch are ignored and a warning is logged via g_warning().
 385    *   </para></listitem>
 386    * </itemizedlist>
 387    * Note that these checks are never done on methods, signals and
 388    * properties that are not referenced in the given
 389    * #GDBusInterfaceInfo, since extending a D-Bus interface on the
 390    * service-side is not considered an ABI break.
 391    *
 392    * Since: 2.26
 393    */
 394   g_object_class_install_property (gobject_class,
 395                                    PROP_G_INTERFACE_INFO,
 396                                    g_param_spec_boxed ("g-interface-info",
 397                                                        P_("Interface Information"),
 398                                                        P_("Interface Information"),
 399                                                        G_TYPE_DBUS_INTERFACE_INFO,
 400                                                        G_PARAM_READABLE |
 401                                                        G_PARAM_WRITABLE |
 402                                                        G_PARAM_STATIC_NAME |
 403                                                        G_PARAM_STATIC_BLURB |
 404                                                        G_PARAM_STATIC_NICK));
 405
 406   /**
 407    * GDBusProxy:g-connection:
 408    *
 409    * The #GDBusConnection the proxy is for.
 410    *
 411    * Since: 2.26
 412    */
 413   g_object_class_install_property (gobject_class,
 414                                    PROP_G_CONNECTION,
 415                                    g_param_spec_object ("g-connection",
 416                                                         P_("g-connection"),
 417                                                         P_("The connection the proxy is for"),
 418                                                         G_TYPE_DBUS_CONNECTION,
 419                                                         G_PARAM_READABLE |
 420                                                         G_PARAM_WRITABLE |
 421                                                         G_PARAM_CONSTRUCT_ONLY |
 422                                                         G_PARAM_STATIC_NAME |
 423                                                         G_PARAM_STATIC_BLURB |
 424                                                         G_PARAM_STATIC_NICK));
 425
 426   /**
 427    * GDBusProxy:g-bus-type:
 428    *
 429    * If this property is not %G_BUS_TYPE_NONE, then
 430    * #GDBusProxy:g-connection must be %NULL and will be set to the
 431    * #GDBusConnection obtained by calling g_bus_get() with the value
 432    * of this property.
 433    *
 434    * Since: 2.26
 435    */
 436   g_object_class_install_property (gobject_class,
 437                                    PROP_G_BUS_TYPE,
 438                                    g_param_spec_enum ("g-bus-type",
 439                                                       P_("Bus Type"),
 440                                                       P_("The bus to connect to, if any"),
 441                                                       G_TYPE_BUS_TYPE,
 442                                                       G_BUS_TYPE_NONE,
 443                                                       G_PARAM_WRITABLE |
 444                                                       G_PARAM_CONSTRUCT_ONLY |
 445                                                       G_PARAM_STATIC_NAME |
 446                                                       G_PARAM_STATIC_BLURB |
 447                                                       G_PARAM_STATIC_NICK));
 448
 449   /**
 450    * GDBusProxy:g-flags:
 451    *
 452    * Flags from the #GDBusProxyFlags enumeration.
 453    *
 454    * Since: 2.26
 455    */
 456   g_object_class_install_property (gobject_class,
 457                                    PROP_G_FLAGS,
 458                                    g_param_spec_flags ("g-flags",
 459                                                        P_("g-flags"),
 460                                                        P_("Flags for the proxy"),
 461                                                        G_TYPE_DBUS_PROXY_FLAGS,
 462                                                        G_DBUS_PROXY_FLAGS_NONE,
 463                                                        G_PARAM_READABLE |
 464                                                        G_PARAM_WRITABLE |
 465                                                        G_PARAM_CONSTRUCT_ONLY |
 466                                                        G_PARAM_STATIC_NAME |
 467                                                        G_PARAM_STATIC_BLURB |
 468                                                        G_PARAM_STATIC_NICK));
 469
 470   /**
 471    * GDBusProxy:g-name:
 472    *
 473    * The well-known or unique name that the proxy is for.
 474    *
 475    * Since: 2.26
 476    */
 477   g_object_class_install_property (gobject_class,
 478                                    PROP_G_NAME,
 479                                    g_param_spec_string ("g-name",
 480                                                         P_("g-name"),
 481                                                         P_("The well-known or unique name that the proxy is for"),
 482                                                         NULL,
 483                                                         G_PARAM_READABLE |
 484                                                         G_PARAM_WRITABLE |
 485                                                         G_PARAM_CONSTRUCT_ONLY |
 486                                                         G_PARAM_STATIC_NAME |
 487                                                         G_PARAM_STATIC_BLURB |
 488                                                         G_PARAM_STATIC_NICK));
 489
 490   /**
 491    * GDBusProxy:g-name-owner:
 492    *
 493    * The unique name that owns #GDBusProxy:g-name or %NULL if no-one
 494    * currently owns that name. You may connect to #GObject::notify signal to
 495    * track changes to this property.
 496    *
 497    * Since: 2.26
 498    */
 499   g_object_class_install_property (gobject_class,
 500                                    PROP_G_NAME_OWNER,
 501                                    g_param_spec_string ("g-name-owner",
 502                                                         P_("g-name-owner"),
 503                                                         P_("The unique name for the owner"),
 504                                                         NULL,
 505                                                         G_PARAM_READABLE |
 506                                                         G_PARAM_STATIC_NAME |
 507                                                         G_PARAM_STATIC_BLURB |
 508                                                         G_PARAM_STATIC_NICK));
 509
 510   /**
 511    * GDBusProxy:g-object-path:
 512    *
 513    * The object path the proxy is for.
 514    *
 515    * Since: 2.26
 516    */
 517   g_object_class_install_property (gobject_class,
 518                                    PROP_G_OBJECT_PATH,
 519                                    g_param_spec_string ("g-object-path",
 520                                                         P_("g-object-path"),
 521                                                         P_("The object path the proxy is for"),
 522                                                         NULL,
 523                                                         G_PARAM_READABLE |
 524                                                         G_PARAM_WRITABLE |
 525                                                         G_PARAM_CONSTRUCT_ONLY |
 526                                                         G_PARAM_STATIC_NAME |
 527                                                         G_PARAM_STATIC_BLURB |
 528                                                         G_PARAM_STATIC_NICK));
 529
 530   /**
 531    * GDBusProxy:g-interface-name:
 532    *
 533    * The D-Bus interface name the proxy is for.
 534    *
 535    * Since: 2.26
 536    */
 537   g_object_class_install_property (gobject_class,
 538                                    PROP_G_INTERFACE_NAME,
 539                                    g_param_spec_string ("g-interface-name",
 540                                                         P_("g-interface-name"),
 541                                                         P_("The D-Bus interface name the proxy is for"),
 542                                                         NULL,
 543                                                         G_PARAM_READABLE |
 544                                                         G_PARAM_WRITABLE |
 545                                                         G_PARAM_CONSTRUCT_ONLY |
 546                                                         G_PARAM_STATIC_NAME |
 547                                                         G_PARAM_STATIC_BLURB |
 548                                                         G_PARAM_STATIC_NICK));
 549
 550   /**
 551    * GDBusProxy:g-default-timeout:
 552    *
 553    * The timeout to use if -1 (specifying default timeout) is passed
 554    * as @timeout_msec in the g_dbus_proxy_call() and
 555    * g_dbus_proxy_call_sync() functions.
 556    *
 557    * This allows applications to set a proxy-wide timeout for all
 558    * remote method invocations on the proxy. If this property is -1,
 559    * the default timeout (typically 25 seconds) is used. If set to
 560    * %G_MAXINT, then no timeout is used.
 561    *
 562    * Since: 2.26
 563    */
 564   g_object_class_install_property (gobject_class,
 565                                    PROP_G_DEFAULT_TIMEOUT,
 566                                    g_param_spec_int ("g-default-timeout",
 567                                                      P_("Default Timeout"),
 568                                                      P_("Timeout for remote method invocation"),
 569                                                      -1,
 570                                                      G_MAXINT,
 571                                                      -1,
 572                                                      G_PARAM_READABLE |
 573                                                      G_PARAM_WRITABLE |
 574                                                      G_PARAM_CONSTRUCT |
 575                                                      G_PARAM_STATIC_NAME |
 576                                                      G_PARAM_STATIC_BLURB |
 577                                                      G_PARAM_STATIC_NICK));
 578
 579   /**
 580    * GDBusProxy::g-properties-changed:
 581    * @proxy: The #GDBusProxy emitting the signal.
 582    * @changed_properties: A #GVariant containing the properties that changed
 583    * @invalidated_properties: A %NULL terminated array of properties that was invalidated
 584    *
 585    * Emitted when one or more D-Bus properties on @proxy changes. The
 586    * local cache has already been updated when this signal fires. Note
 587    * that both @changed_properties and @invalidated_properties are
 588    * guaranteed to never be %NULL (either may be empty though).
 589    *
 590    * If the proxy has the flag
 591    * %G_DBUS_PROXY_FLAGS_GET_INVALIDATED_PROPERTIES set, then
 592    * @invalidated_properties will always be empty.
 593    *
 594    * This signal corresponds to the
 595    * <literal>PropertiesChanged</literal> D-Bus signal on the
 596    * <literal>org.freedesktop.DBus.Properties</literal> interface.
 597    *
 598    * Since: 2.26
 599    */
 600   signals[PROPERTIES_CHANGED_SIGNAL] = g_signal_new ("g-properties-changed",
 601                                                      G_TYPE_DBUS_PROXY,
 602                                                      G_SIGNAL_RUN_LAST | G_SIGNAL_MUST_COLLECT,
 603                                                      G_STRUCT_OFFSET (GDBusProxyClass, g_properties_changed),
 604                                                      NULL,
 605                                                      NULL,
 606                                                      NULL,
 607                                                      G_TYPE_NONE,
 608                                                      2,
 609                                                      G_TYPE_VARIANT,
 610                                                      G_TYPE_STRV | G_SIGNAL_TYPE_STATIC_SCOPE);
 611
 612   /**
 613    * GDBusProxy::g-signal:
 614    * @proxy: The #GDBusProxy emitting the signal.
 615    * @sender_name: (allow-none): The sender of the signal or %NULL if the connection is not a bus connection.
 616    * @signal_name: The name of the signal.
 617    * @parameters: A #GVariant tuple with parameters for the signal.
 618    *
 619    * Emitted when a signal from the remote object and interface that @proxy is for, has been received.
 620    *
 621    * Since: 2.26
 622    */
 623   signals[SIGNAL_SIGNAL] = g_signal_new ("g-signal",
 624                                          G_TYPE_DBUS_PROXY,
 625                                          G_SIGNAL_RUN_LAST | G_SIGNAL_MUST_COLLECT,
 626                                          G_STRUCT_OFFSET (GDBusProxyClass, g_signal),
 627                                          NULL,
 628                                          NULL,
 629                                          NULL,
 630                                          G_TYPE_NONE,
 631                                          3,
 632                                          G_TYPE_STRING,
 633                                          G_TYPE_STRING,
 634                                          G_TYPE_VARIANT);
 635
 636 }
 637
 638 static void
 639 g_dbus_proxy_init (GDBusProxy *proxy)
 640 {
 641   proxy->priv = g_dbus_proxy_get_instance_private (proxy);
 642   proxy->priv->signal_subscription_data = g_slice_new0 (SignalSubscriptionData);
 643   proxy->priv->signal_subscription_data->ref_count = 1;
 644   proxy->priv->signal_subscription_data->proxy = proxy;
 645   proxy->priv->properties = g_hash_table_new_full (g_str_hash,
 646                                                    g_str_equal,
 647                                                    g_free,
 648                                                    (GDestroyNotify) g_variant_unref);
 649 }
 650
 651 /* ---------------------------------------------------------------------------------------------------- */
 652
 653 static gint
 654 property_name_sort_func (const gchar **a,
 655                          const gchar **b)
 656 {
 657   return g_strcmp0 (*a, *b);
 658 }
 659
 660 /**
 661  * g_dbus_proxy_get_cached_property_names:
 662  * @proxy: A #GDBusProxy.
 663  *
 664  * Gets the names of all cached properties on @proxy.
 665  *
 666  * Returns: (transfer full): A %NULL-terminated array of strings or %NULL if
 667  *          @proxy has no cached properties. Free the returned array with
 668  *          g_strfreev().
 669  *
 670  * Since: 2.26
 671  */
 672 gchar **
 673 g_dbus_proxy_get_cached_property_names (GDBusProxy  *proxy)
 674 {
 675   gchar **names;
 676   GPtrArray *p;
 677   GHashTableIter iter;
 678   const gchar *key;
 679
 680   g_return_val_if_fail (G_IS_DBUS_PROXY (proxy), NULL);
 681
 682   G_LOCK (properties_lock);
 683
 684   names = NULL;
 685   if (g_hash_table_size (proxy->priv->properties) == 0)
 686     goto out;
 687
 688   p = g_ptr_array_new ();
 689
 690   g_hash_table_iter_init (&iter, proxy->priv->properties);
 691   while (g_hash_table_iter_next (&iter, (gpointer) &key, NULL))
 692     g_ptr_array_add (p, g_strdup (key));
 693   g_ptr_array_sort (p, (GCompareFunc) property_name_sort_func);
 694   g_ptr_array_add (p, NULL);
 695
 696   names = (gchar **) g_ptr_array_free (p, FALSE);
 697
 698  out:
 699   G_UNLOCK (properties_lock);
 700   return names;
 701 }
 702
 703 /* properties_lock must be held for as long as you will keep the
 704  * returned value
 705  */
 706 static const GDBusPropertyInfo *
 707 lookup_property_info (GDBusProxy  *proxy,
 708                       const gchar *property_name)
 709 {
 710   const GDBusPropertyInfo *info = NULL;
 711
 712   if (proxy->priv->expected_interface == NULL)
 713     goto out;
 714
 715   info = g_dbus_interface_info_lookup_property (proxy->priv->expected_interface, property_name);
 716
 717  out:
 718   return info;
 719 }
 720
 721 /**
 722  * g_dbus_proxy_get_cached_property:
 723  * @proxy: A #GDBusProxy.
 724  * @property_name: Property name.
 725  *
 726  * Looks up the value for a property from the cache. This call does no
 727  * blocking IO.
 728  *
 729  * If @proxy has an expected interface (see
 730  * #GDBusProxy:g-interface-info) and @property_name is referenced by
 731  * it, then @value is checked against the type of the property.
 732  *
 733  * Returns: A reference to the #GVariant instance that holds the value
 734  * for @property_name or %NULL if the value is not in the cache. The
 735  * returned reference must be freed with g_variant_unref().
 736  *
 737  * Since: 2.26
 738  */
 739 GVariant *
 740 g_dbus_proxy_get_cached_property (GDBusProxy   *proxy,
 741                                   const gchar  *property_name)
 742 {
 743   const GDBusPropertyInfo *info;
 744   GVariant *value;
 745
 746   g_return_val_if_fail (G_IS_DBUS_PROXY (proxy), NULL);
 747   g_return_val_if_fail (property_name != NULL, NULL);
 748
 749   G_LOCK (properties_lock);
 750
 751   value = g_hash_table_lookup (proxy->priv->properties, property_name);
 752   if (value == NULL)
 753     goto out;
 754
 755   info = lookup_property_info (proxy, property_name);
 756   if (info != NULL)
 757     {
 758       const gchar *type_string = g_variant_get_type_string (value);
 759       if (g_strcmp0 (type_string, info->signature) != 0)
 760         {
 761           g_warning ("Trying to get property %s with type %s but according to the expected "
 762                      "interface the type is %s",
 763                      property_name,
 764                      type_string,
 765                      info->signature);
 766           value = NULL;
 767           goto out;
 768         }
 769     }
 770
 771   g_variant_ref (value);
 772
 773  out:
 774   G_UNLOCK (properties_lock);
 775   return value;
 776 }
 777
 778 /**
 779  * g_dbus_proxy_set_cached_property:
 780  * @proxy: A #GDBusProxy
 781  * @property_name: Property name.
 782  * @value: (allow-none): Value for the property or %NULL to remove it from the cache.
 783  *
 784  * If @value is not %NULL, sets the cached value for the property with
 785  * name @property_name to the value in @value.
 786  *
 787  * If @value is %NULL, then the cached value is removed from the
 788  * property cache.
 789  *
 790  * If @proxy has an expected interface (see
 791  * #GDBusProxy:g-interface-info) and @property_name is referenced by
 792  * it, then @value is checked against the type of the property.
 793  *
 794  * If the @value #GVariant is floating, it is consumed. This allows
 795  * convenient 'inline' use of g_variant_new(), e.g.
 796  * |[
 797  *  g_dbus_proxy_set_cached_property (proxy,
 798  *                                    "SomeProperty",
 799  *                                    g_variant_new ("(si)",
 800  *                                                  "A String",
 801  *                                                  42));
 802  * ]|
 803  *
 804  * Normally you will not need to use this method since @proxy is
 805  * tracking changes using the
 806  * <literal>org.freedesktop.DBus.Properties.PropertiesChanged</literal>
 807  * D-Bus signal. However, for performance reasons an object may decide
 808  * to not use this signal for some properties and instead use a
 809  * proprietary out-of-band mechanism to transmit changes.
 810  *
 811  * As a concrete example, consider an object with a property
 812  * <literal>ChatroomParticipants</literal> which is an array of
 813  * strings. Instead of transmitting the same (long) array every time
 814  * the property changes, it is more efficient to only transmit the
 815  * delta using e.g. signals <literal>ChatroomParticipantJoined(String
 816  * name)</literal> and <literal>ChatroomParticipantParted(String
 817  * name)</literal>.
 818  *
 819  * Since: 2.26
 820  */
 821 void
 822 g_dbus_proxy_set_cached_property (GDBusProxy   *proxy,
 823                                   const gchar  *property_name,
 824                                   GVariant     *value)
 825 {
 826   const GDBusPropertyInfo *info;
 827
 828   g_return_if_fail (G_IS_DBUS_PROXY (proxy));
 829   g_return_if_fail (property_name != NULL);
 830
 831   G_LOCK (properties_lock);
 832
 833   if (value != NULL)
 834     {
 835       info = lookup_property_info (proxy, property_name);
 836       if (info != NULL)
 837         {
 838           if (g_strcmp0 (info->signature, g_variant_get_type_string (value)) != 0)
 839             {
 840               g_warning ("Trying to set property %s of type %s but according to the expected "
 841                          "interface the type is %s",
 842                          property_name,
 843                          g_variant_get_type_string (value),
 844                          info->signature);
 845               goto out;
 846             }
 847         }
 848       g_hash_table_insert (proxy->priv->properties,
 849                            g_strdup (property_name),
 850                            g_variant_ref_sink (value));
 851     }
 852   else
 853     {
 854       g_hash_table_remove (proxy->priv->properties, property_name);
 855     }
 856
 857  out:
 858   G_UNLOCK (properties_lock);
 859 }
 860
 861 /* ---------------------------------------------------------------------------------------------------- */
 862
 863 static void
 864 on_signal_received (GDBusConnection *connection,
 865                     const gchar     *sender_name,
 866                     const gchar     *object_path,
 867                     const gchar     *interface_name,
 868                     const gchar     *signal_name,
 869                     GVariant        *parameters,
 870                     gpointer         user_data)
 871 {
 872   SignalSubscriptionData *data = user_data;
 873   GDBusProxy *proxy;
 874
 875   G_LOCK (signal_subscription_lock);
 876   proxy = data->proxy;
 877   if (proxy == NULL)
 878     {
 879       G_UNLOCK (signal_subscription_lock);
 880       return;
 881     }
 882   else
 883     {
 884       g_object_ref (proxy);
 885       G_UNLOCK (signal_subscription_lock);
 886     }
 887
 888   if (!proxy->priv->initialized)
 889     goto out;
 890
 891   G_LOCK (properties_lock);
 892
 893   if (proxy->priv->name_owner != NULL && g_strcmp0 (sender_name, proxy->priv->name_owner) != 0)
 894     {
 895       G_UNLOCK (properties_lock);
 896       goto out;
 897     }
 898
 899   if (proxy->priv->expected_interface != NULL)
 900     {
 901       const GDBusSignalInfo *info;
 902       info = g_dbus_interface_info_lookup_signal (proxy->priv->expected_interface, signal_name);
 903       if (info != NULL)
 904         {
 905           GVariantType *expected_type;
 906           expected_type = _g_dbus_compute_complete_signature (info->args);
 907           if (!g_variant_type_equal (expected_type, g_variant_get_type (parameters)))
 908             {
 909               gchar *expected_type_string = g_variant_type_dup_string (expected_type);
 910               g_warning ("Dropping signal %s of type %s since the type from the expected interface is %s",
 911                          info->name,
 912                          g_variant_get_type_string (parameters),
 913                          expected_type_string);
 914               g_free (expected_type_string);
 915               g_variant_type_free (expected_type);
 916               G_UNLOCK (properties_lock);
 917               goto out;
 918             }
 919           g_variant_type_free (expected_type);
 920         }
 921     }
 922
 923   G_UNLOCK (properties_lock);
 924
 925   g_signal_emit (proxy,
 926                  signals[SIGNAL_SIGNAL],
 927                  0,
 928                  sender_name,
 929                  signal_name,
 930                  parameters);
 931
 932  out:
 933   if (proxy != NULL)
 934     g_object_unref (proxy);
 935 }
 936
 937 /* ---------------------------------------------------------------------------------------------------- */
 938
 939 /* must hold properties_lock */
 940 static void
 941 insert_property_checked (GDBusProxy  *proxy,
 942                          gchar *property_name,
 943                          GVariant *value)
 944 {
 945   if (proxy->priv->expected_interface != NULL)
 946     {
 947       const GDBusPropertyInfo *info;
 948       info = g_dbus_interface_info_lookup_property (proxy->priv->expected_interface, property_name);
 949       /* Only check known properties */
 950       if (info != NULL)
 951         {
 952           /* Warn about properties with the wrong type */
 953           if (g_strcmp0 (info->signature, g_variant_get_type_string (value)) != 0)
 954             {
 955               g_warning ("Received property %s with type %s does not match expected type "
 956                          "%s in the expected interface",
 957                          property_name,
 958                          g_variant_get_type_string (value),
 959                          info->signature);
 960               goto invalid;
 961             }
 962         }
 963     }
 964
 965   g_hash_table_insert (proxy->priv->properties,
 966                        property_name, /* adopts string */
 967                        value); /* adopts value */
 968
 969   return;
 970
 971  invalid:
 972   g_variant_unref (value);
 973   g_free (property_name);
 974 }
 975
 976 typedef struct
 977 {
 978   GDBusProxy *proxy;
 979   gchar *prop_name;
 980 } InvalidatedPropGetData;
 981
 982 static void
 983 invalidated_property_get_cb (GDBusConnection *connection,
 984                              GAsyncResult    *res,
 985                              gpointer         user_data)
 986 {
 987   InvalidatedPropGetData *data = user_data;
 988   const gchar *invalidated_properties[] = {NULL};
 989   GVariantBuilder builder;
 990   GVariant *value = NULL;
 991   GVariant *unpacked_value = NULL;
 992
 993   /* errors are fine, the other end could have disconnected */
 994   value = g_dbus_connection_call_finish (connection, res, NULL);
 995   if (value == NULL)
 996     {
 997       goto out;
 998     }
 999
1000   if (!g_variant_is_of_type (value, G_VARIANT_TYPE ("(v)")))
1001     {
1002       g_warning ("Expected type '(v)' for Get() reply, got '%s'", g_variant_get_type_string (value));
1003       goto out;
1004     }
1005
1006   g_variant_get (value, "(v)", &unpacked_value);
1007
1008   /* synthesize the a{sv} in the PropertiesChanged signal */
1009   g_variant_builder_init (&builder, G_VARIANT_TYPE ("a{sv}"));
1010   g_variant_builder_add (&builder, "{sv}", data->prop_name, unpacked_value);
1011
1012   G_LOCK (properties_lock);
1013   insert_property_checked (data->proxy,
1014                            data->prop_name,  /* adopts string */
1015                            unpacked_value);  /* adopts value */
1016   data->prop_name = NULL;
1017   G_UNLOCK (properties_lock);
1018
1019   g_signal_emit (data->proxy,
1020                  signals[PROPERTIES_CHANGED_SIGNAL], 0,
1021                  g_variant_builder_end (&builder), /* consumed */
1022                  invalidated_properties);
1023
1024
1025  out:
1026   if (value != NULL)
1027     g_variant_unref (value);
1028   g_object_unref (data->proxy);
1029   g_free (data->prop_name);
1030   g_slice_free (InvalidatedPropGetData, data);
1031 }
1032
1033 static void
1034 on_properties_changed (GDBusConnection *connection,
1035                        const gchar     *sender_name,
1036                        const gchar     *object_path,
1037                        const gchar     *interface_name,
1038                        const gchar     *signal_name,
1039                        GVariant        *parameters,
1040                        gpointer         user_data)
1041 {
1042   SignalSubscriptionData *data = user_data;
1043   gboolean emit_g_signal = FALSE;
1044   GDBusProxy *proxy;
1045   const gchar *interface_name_for_signal;
1046   GVariant *changed_properties;
1047   gchar **invalidated_properties;
1048   GVariantIter iter;
1049   gchar *key;
1050   GVariant *value;
1051   guint n;
1052
1053   changed_properties = NULL;
1054   invalidated_properties = NULL;
1055
1056   G_LOCK (signal_subscription_lock);
1057   proxy = data->proxy;
1058   if (proxy == NULL)
1059     {
1060       G_UNLOCK (signal_subscription_lock);
1061       goto out;
1062     }
1063   else
1064     {
1065       g_object_ref (proxy);
1066       G_UNLOCK (signal_subscription_lock);
1067     }
1068
1069   if (!proxy->priv->initialized)
1070     goto out;
1071
1072   G_LOCK (properties_lock);
1073
1074   if (proxy->priv->name_owner != NULL && g_strcmp0 (sender_name, proxy->priv->name_owner) != 0)
1075     {
1076       G_UNLOCK (properties_lock);
1077       goto out;
1078     }
1079
1080   if (!g_variant_is_of_type (parameters, G_VARIANT_TYPE ("(sa{sv}as)")))
1081     {
1082       g_warning ("Value for PropertiesChanged signal with type '%s' does not match '(sa{sv}as)'",
1083                  g_variant_get_type_string (parameters));
1084       G_UNLOCK (properties_lock);
1085       goto out;
1086     }
1087
1088   g_variant_get (parameters,
1089                  "(&s@a{sv}^a&s)",
1090                  &interface_name_for_signal,
1091                  &changed_properties,
1092                  &invalidated_properties);
1093
1094   if (g_strcmp0 (interface_name_for_signal, proxy->priv->interface_name) != 0)
1095     {
1096       G_UNLOCK (properties_lock);
1097       goto out;
1098     }
1099
1100   g_variant_iter_init (&iter, changed_properties);
1101   while (g_variant_iter_next (&iter, "{sv}", &key, &value))
1102     {
1103       insert_property_checked (proxy,
1104                                key, /* adopts string */
1105                                value); /* adopts value */
1106       emit_g_signal = TRUE;
1107     }
1108
1109   if (proxy->priv->flags & G_DBUS_PROXY_FLAGS_GET_INVALIDATED_PROPERTIES)
1110     {
1111       if (proxy->priv->name_owner != NULL)
1112         {
1113           for (n = 0; invalidated_properties[n] != NULL; n++)
1114             {
1115               InvalidatedPropGetData *data;
1116               data = g_slice_new0 (InvalidatedPropGetData);
1117               data->proxy = g_object_ref (proxy);
1118               data->prop_name = g_strdup (invalidated_properties[n]);
1119               g_dbus_connection_call (proxy->priv->connection,
1120                                       proxy->priv->name_owner,
1121                                       proxy->priv->object_path,
1122                                       "org.freedesktop.DBus.Properties",
1123                                       "Get",
1124                                       g_variant_new ("(ss)", proxy->priv->interface_name, data->prop_name),
1125                                       G_VARIANT_TYPE ("(v)"),
1126                                       G_DBUS_CALL_FLAGS_NONE,
1127                                       -1,           /* timeout */
1128                                       NULL,         /* GCancellable */
1129                                       (GAsyncReadyCallback) invalidated_property_get_cb,
1130                                       data);
1131             }
1132         }
1133     }
1134   else
1135     {
1136       emit_g_signal = TRUE;
1137       for (n = 0; invalidated_properties[n] != NULL; n++)
1138         {
1139           g_hash_table_remove (proxy->priv->properties, invalidated_properties[n]);
1140         }
1141     }
1142
1143   G_UNLOCK (properties_lock);
1144
1145   if (emit_g_signal)
1146     {
1147       g_signal_emit (proxy, signals[PROPERTIES_CHANGED_SIGNAL],
1148                      0,
1149                      changed_properties,
1150                      invalidated_properties);
1151     }
1152
1153  out:
1154   if (changed_properties != NULL)
1155     g_variant_unref (changed_properties);
1156   g_free (invalidated_properties);
1157   if (proxy != NULL)
1158     g_object_unref (proxy);
1159 }
1160
1161 /* ---------------------------------------------------------------------------------------------------- */
1162
1163 static void
1164 process_get_all_reply (GDBusProxy *proxy,
1165                        GVariant   *result)
1166 {
1167   GVariantIter *iter;
1168   gchar *key;
1169   GVariant *value;
1170   guint num_properties;
1171
1172   if (!g_variant_is_of_type (result, G_VARIANT_TYPE ("(a{sv})")))
1173     {
1174       g_warning ("Value for GetAll reply with type '%s' does not match '(a{sv})'",
1175                  g_variant_get_type_string (result));
1176       goto out;
1177     }
1178
1179   G_LOCK (properties_lock);
1180
1181   g_variant_get (result, "(a{sv})", &iter);
1182   while (g_variant_iter_next (iter, "{sv}", &key, &value))
1183     {
1184       insert_property_checked (proxy,
1185                                key, /* adopts string */
1186                                value); /* adopts value */
1187     }
1188   g_variant_iter_free (iter);
1189
1190   num_properties = g_hash_table_size (proxy->priv->properties);
1191   G_UNLOCK (properties_lock);
1192
1193   /* Synthesize ::g-properties-changed changed */
1194   if (num_properties > 0)
1195     {
1196       GVariant *changed_properties;
1197       const gchar *invalidated_properties[1] = {NULL};
1198
1199       g_variant_get (result,
1200                      "(@a{sv})",
1201                      &changed_properties);
1202       g_signal_emit (proxy, signals[PROPERTIES_CHANGED_SIGNAL],
1203                      0,
1204                      changed_properties,
1205                      invalidated_properties);
1206       g_variant_unref (changed_properties);
1207     }
1208
1209  out:
1210   ;
1211 }
1212
1213 typedef struct
1214 {
1215   GDBusProxy *proxy;
1216   GCancellable *cancellable;
1217   gchar *name_owner;
1218 } LoadPropertiesOnNameOwnerChangedData;
1219
1220 static void
1221 on_name_owner_changed_get_all_cb (GDBusConnection *connection,
1222                                   GAsyncResult    *res,
1223                                   gpointer         user_data)
1224 {
1225   LoadPropertiesOnNameOwnerChangedData *data = user_data;
1226   GVariant *result;
1227   GError *error;
1228   gboolean cancelled;
1229
1230   cancelled = FALSE;
1231
1232   error = NULL;
1233   result = g_dbus_connection_call_finish (connection,
1234                                           res,
1235                                           &error);
1236   if (result == NULL)
1237     {
1238       if (error->domain == G_IO_ERROR && error->code == G_IO_ERROR_CANCELLED)
1239         cancelled = TRUE;
1240       /* We just ignore if GetAll() is failing. Because this might happen
1241        * if the object has no properties at all. Or if the caller is
1242        * not authorized to see the properties.
1243        *
1244        * Either way, apps can know about this by using
1245        * get_cached_property_names() or get_cached_property().
1246        *
1247        * TODO: handle G_DBUS_DEBUG flag 'proxy' and, if enabled, log the
1248        * fact that GetAll() failed
1249        */
1250       //g_debug ("error: %d %d %s", error->domain, error->code, error->message);
1251       g_error_free (error);
1252     }
1253
1254   /* and finally we can notify */
1255   if (!cancelled)
1256     {
1257       G_LOCK (properties_lock);
1258       g_free (data->proxy->priv->name_owner);
1259       data->proxy->priv->name_owner = data->name_owner;
1260       data->name_owner = NULL; /* to avoid an extra copy, we steal the string */
1261       g_hash_table_remove_all (data->proxy->priv->properties);
1262       G_UNLOCK (properties_lock);
1263       if (result != NULL)
1264         {
1265           process_get_all_reply (data->proxy, result);
1266           g_variant_unref (result);
1267         }
1268
1269       g_object_notify (G_OBJECT (data->proxy), "g-name-owner");
1270     }
1271
1272   if (data->cancellable == data->proxy->priv->get_all_cancellable)
1273     data->proxy->priv->get_all_cancellable = NULL;
1274
1275   g_object_unref (data->proxy);
1276   g_object_unref (data->cancellable);
1277   g_free (data->name_owner);
1278   g_free (data);
1279 }
1280
1281 static void
1282 on_name_owner_changed (GDBusConnection *connection,
1283                        const gchar      *sender_name,
1284                        const gchar      *object_path,
1285                        const gchar      *interface_name,
1286                        const gchar      *signal_name,
1287                        GVariant         *parameters,
1288                        gpointer          user_data)
1289 {
1290   SignalSubscriptionData *data = user_data;
1291   GDBusProxy *proxy;
1292   const gchar *old_owner;
1293   const gchar *new_owner;
1294
1295   G_LOCK (signal_subscription_lock);
1296   proxy = data->proxy;
1297   if (proxy == NULL)
1298     {
1299       G_UNLOCK (signal_subscription_lock);
1300       goto out;
1301     }
1302   else
1303     {
1304       g_object_ref (proxy);
1305       G_UNLOCK (signal_subscription_lock);
1306     }
1307
1308   /* if we are already trying to load properties, cancel that */
1309   if (proxy->priv->get_all_cancellable != NULL)
1310     {
1311       g_cancellable_cancel (proxy->priv->get_all_cancellable);
1312       proxy->priv->get_all_cancellable = NULL;
1313     }
1314
1315   g_variant_get (parameters,
1316                  "(&s&s&s)",
1317                  NULL,
1318                  &old_owner,
1319                  &new_owner);
1320
1321   if (strlen (new_owner) == 0)
1322     {
1323       G_LOCK (properties_lock);
1324       g_free (proxy->priv->name_owner);
1325       proxy->priv->name_owner = NULL;
1326
1327       /* Synthesize ::g-properties-changed changed */
1328       if (!(proxy->priv->flags & G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES) &&
1329           g_hash_table_size (proxy->priv->properties) > 0)
1330         {
1331           GVariantBuilder builder;
1332           GPtrArray *invalidated_properties;
1333           GHashTableIter iter;
1334           const gchar *key;
1335
1336           /* Build changed_properties (always empty) and invalidated_properties ... */
1337           g_variant_builder_init (&builder, G_VARIANT_TYPE ("a{sv}"));
1338
1339           invalidated_properties = g_ptr_array_new_with_free_func (g_free);
1340           g_hash_table_iter_init (&iter, proxy->priv->properties);
1341           while (g_hash_table_iter_next (&iter, (gpointer) &key, NULL))
1342             g_ptr_array_add (invalidated_properties, g_strdup (key));
1343           g_ptr_array_add (invalidated_properties, NULL);
1344
1345           /* ... throw out the properties ... */
1346           g_hash_table_remove_all (proxy->priv->properties);
1347
1348           G_UNLOCK (properties_lock);
1349
1350           /* ... and finally emit the ::g-properties-changed signal */
1351           g_signal_emit (proxy, signals[PROPERTIES_CHANGED_SIGNAL],
1352                          0,
1353                          g_variant_builder_end (&builder) /* consumed */,
1354                          (const gchar* const *) invalidated_properties->pdata);
1355           g_ptr_array_unref (invalidated_properties);
1356         }
1357       else
1358         {
1359           G_UNLOCK (properties_lock);
1360         }
1361       g_object_notify (G_OBJECT (proxy), "g-name-owner");
1362     }
1363   else
1364     {
1365       G_LOCK (properties_lock);
1366
1367       /* ignore duplicates - this can happen when activating the service */
1368       if (g_strcmp0 (new_owner, proxy->priv->name_owner) == 0)
1369         {
1370           G_UNLOCK (properties_lock);
1371           goto out;
1372         }
1373
1374       if (proxy->priv->flags & G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES)
1375         {
1376           g_free (proxy->priv->name_owner);
1377           proxy->priv->name_owner = g_strdup (new_owner);
1378
1379           g_hash_table_remove_all (proxy->priv->properties);
1380           G_UNLOCK (properties_lock);
1381           g_object_notify (G_OBJECT (proxy), "g-name-owner");
1382         }
1383       else
1384         {
1385           LoadPropertiesOnNameOwnerChangedData *data;
1386
1387           G_UNLOCK (properties_lock);
1388
1389           /* start loading properties.. only then emit notify::g-name-owner .. we
1390            * need to be able to cancel this in the event another NameOwnerChanged
1391            * signal suddenly happens
1392            */
1393
1394           g_assert (proxy->priv->get_all_cancellable == NULL);
1395           proxy->priv->get_all_cancellable = g_cancellable_new ();
1396           data = g_new0 (LoadPropertiesOnNameOwnerChangedData, 1);
1397           data->proxy = g_object_ref (proxy);
1398           data->cancellable = proxy->priv->get_all_cancellable;
1399           data->name_owner = g_strdup (new_owner);
1400           g_dbus_connection_call (proxy->priv->connection,
1401                                   data->name_owner,
1402                                   proxy->priv->object_path,
1403                                   "org.freedesktop.DBus.Properties",
1404                                   "GetAll",
1405                                   g_variant_new ("(s)", proxy->priv->interface_name),
1406                                   G_VARIANT_TYPE ("(a{sv})"),
1407                                   G_DBUS_CALL_FLAGS_NONE,
1408                                   -1,           /* timeout */
1409                                   proxy->priv->get_all_cancellable,
1410                                   (GAsyncReadyCallback) on_name_owner_changed_get_all_cb,
1411                                   data);
1412         }
1413     }
1414
1415  out:
1416   if (proxy != NULL)
1417     g_object_unref (proxy);
1418 }
1419
1420 /* ---------------------------------------------------------------------------------------------------- */
1421
1422 typedef struct
1423 {
1424   GDBusProxy *proxy;
1425   GCancellable *cancellable;
1426   GSimpleAsyncResult *simple;
1427 } AsyncInitData;
1428
1429 static void
1430 async_init_data_free (AsyncInitData *data)
1431 {
1432   g_object_unref (data->proxy);
1433   if (data->cancellable != NULL)
1434     g_object_unref (data->cancellable);
1435   g_object_unref (data->simple);
1436   g_free (data);
1437 }
1438
1439 static void
1440 async_init_get_all_cb (GDBusConnection *connection,
1441                        GAsyncResult    *res,
1442                        gpointer         user_data)
1443 {
1444   AsyncInitData *data = user_data;
1445   GVariant *result;
1446   GError *error;
1447
1448   error = NULL;
1449   result = g_dbus_connection_call_finish (connection,
1450                                           res,
1451                                           &error);
1452   if (result == NULL)
1453     {
1454       /* We just ignore if GetAll() is failing. Because this might happen
1455        * if the object has no properties at all. Or if the caller is
1456        * not authorized to see the properties.
1457        *
1458        * Either way, apps can know about this by using
1459        * get_cached_property_names() or get_cached_property().
1460        *
1461        * TODO: handle G_DBUS_DEBUG flag 'proxy' and, if enabled, log the
1462        * fact that GetAll() failed
1463        */
1464       //g_debug ("error: %d %d %s", error->domain, error->code, error->message);
1465       g_error_free (error);
1466     }
1467   else
1468     {
1469       g_simple_async_result_set_op_res_gpointer (data->simple,
1470                                                  result,
1471                                                  (GDestroyNotify) g_variant_unref);
1472     }
1473
1474   g_simple_async_result_complete_in_idle (data->simple);
1475   async_init_data_free (data);
1476 }
1477
1478 static void
1479 async_init_data_set_name_owner (AsyncInitData *data,
1480                                 const gchar   *name_owner)
1481 {
1482   gboolean get_all;
1483
1484
1485   if (name_owner != NULL)
1486     {
1487       /* it starts as NULL anyway */
1488       G_LOCK (properties_lock);
1489       data->proxy->priv->name_owner = g_strdup (name_owner);
1490       G_UNLOCK (properties_lock);
1491     }
1492
1493   get_all = TRUE;
1494
1495   if (data->proxy->priv->flags & G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES)
1496     {
1497       /* Don't load properties if the API user doesn't want them */
1498       get_all = FALSE;
1499     }
1500   else if (name_owner == NULL && data->proxy->priv->name != NULL)
1501     {
1502       /* Don't attempt to load properties if the name_owner is NULL (which
1503        * usually means the name isn't owned), unless name is also NULL (which
1504        * means we actually wanted to talk to the directly-connected process -
1505        * either dbus-daemon or a peer - instead of going via dbus-daemon)
1506        */
1507         get_all = FALSE;
1508     }
1509
1510   if (get_all)
1511     {
1512       /* load all properties asynchronously */
1513       g_dbus_connection_call (data->proxy->priv->connection,
1514                               name_owner,
1515                               data->proxy->priv->object_path,
1516                               "org.freedesktop.DBus.Properties",
1517                               "GetAll",
1518                               g_variant_new ("(s)", data->proxy->priv->interface_name),
1519                               G_VARIANT_TYPE ("(a{sv})"),
1520                               G_DBUS_CALL_FLAGS_NONE,
1521                               -1,           /* timeout */
1522                               data->cancellable,
1523                               (GAsyncReadyCallback) async_init_get_all_cb,
1524                               data);
1525     }
1526   else
1527     {
1528       g_simple_async_result_complete_in_idle (data->simple);
1529       async_init_data_free (data);
1530     }
1531 }
1532
1533 static void
1534 async_init_get_name_owner_cb (GDBusConnection *connection,
1535                               GAsyncResult    *res,
1536                               gpointer         user_data)
1537 {
1538   AsyncInitData *data = user_data;
1539   GError *error;
1540   GVariant *result;
1541
1542   error = NULL;
1543   result = g_dbus_connection_call_finish (connection,
1544                                           res,
1545                                           &error);
1546   if (result == NULL)
1547     {
1548       if (error->domain == G_DBUS_ERROR &&
1549           error->code == G_DBUS_ERROR_NAME_HAS_NO_OWNER)
1550         {
1551           g_error_free (error);
1552           async_init_data_set_name_owner (data, NULL);
1553         }
1554       else
1555         {
1556           g_simple_async_result_take_error (data->simple, error);
1557           g_simple_async_result_complete_in_idle (data->simple);
1558           async_init_data_free (data);
1559         }
1560     }
1561   else
1562     {
1563       /* borrowed from result to avoid an extra copy */
1564       const gchar *name_owner;
1565
1566       g_variant_get (result, "(&s)", &name_owner);
1567       async_init_data_set_name_owner (data, name_owner);
1568       g_variant_unref (result);
1569     }
1570 }
1571
1572 static void
1573 async_init_call_get_name_owner (AsyncInitData *data)
1574 {
1575   g_dbus_connection_call (data->proxy->priv->connection,
1576                           "org.freedesktop.DBus",  /* name */
1577                           "/org/freedesktop/DBus", /* object path */
1578                           "org.freedesktop.DBus",  /* interface */
1579                           "GetNameOwner",
1580                           g_variant_new ("(s)",
1581                                          data->proxy->priv->name),
1582                           G_VARIANT_TYPE ("(s)"),
1583                           G_DBUS_CALL_FLAGS_NONE,
1584                           -1,           /* timeout */
1585                           data->cancellable,
1586                           (GAsyncReadyCallback) async_init_get_name_owner_cb,
1587                           data);
1588 }
1589
1590 static void
1591 async_init_start_service_by_name_cb (GDBusConnection *connection,
1592                                      GAsyncResult    *res,
1593                                      gpointer         user_data)
1594 {
1595   AsyncInitData *data = user_data;
1596   GError *error;
1597   GVariant *result;
1598
1599   error = NULL;
1600   result = g_dbus_connection_call_finish (connection,
1601                                           res,
1602                                           &error);
1603   if (result == NULL)
1604     {
1605       /* Errors are not unexpected; the bus will reply e.g.
1606        *
1607        *   org.freedesktop.DBus.Error.ServiceUnknown: The name org.gnome.Epiphany2
1608        *   was not provided by any .service files
1609        *
1610        * or (see #677718)
1611        *
1612        *   org.freedesktop.systemd1.Masked: Unit polkit.service is masked.
1613        *
1614        * This doesn't mean that the name doesn't have an owner, just
1615        * that it's not provided by a .service file or can't currently
1616        * be started.
1617        *
1618        * In particular, in both cases, it could be that a service
1619        * owner will actually appear later. So instead of erroring out,
1620        * we just proceed to invoke GetNameOwner() if dealing with the
1621        * kind of errors above.
1622        */
1623       if (error->domain == G_DBUS_ERROR && error->code == G_DBUS_ERROR_SERVICE_UNKNOWN)
1624         {
1625           g_error_free (error);
1626         }
1627       else
1628         {
1629           gchar *remote_error = g_dbus_error_get_remote_error (error);
1630           if (g_strcmp0 (remote_error, "org.freedesktop.systemd1.Masked") == 0)
1631             {
1632               g_error_free (error);
1633               g_free (remote_error);
1634             }
1635           else
1636             {
1637               g_prefix_error (&error,
1638                               _("Error calling StartServiceByName for %s: "),
1639                               data->proxy->priv->name);
1640               g_free (remote_error);
1641               goto failed;
1642             }
1643         }
1644     }
1645   else
1646     {
1647       guint32 start_service_result;
1648       g_variant_get (result,
1649                      "(u)",
1650                      &start_service_result);
1651       g_variant_unref (result);
1652       if (start_service_result == 1 ||  /* DBUS_START_REPLY_SUCCESS */
1653           start_service_result == 2)    /* DBUS_START_REPLY_ALREADY_RUNNING */
1654         {
1655           /* continue to invoke GetNameOwner() */
1656         }
1657       else
1658         {
1659           error = g_error_new (G_IO_ERROR,
1660                                G_IO_ERROR_FAILED,
1661                                _("Unexpected reply %d from StartServiceByName(\"%s\") method"),
1662                                start_service_result,
1663                                data->proxy->priv->name);
1664           goto failed;
1665         }
1666     }
1667
1668   async_init_call_get_name_owner (data);
1669   return;
1670
1671  failed:
1672   g_warn_if_fail (error != NULL);
1673   g_simple_async_result_take_error (data->simple, error);
1674   g_simple_async_result_complete_in_idle (data->simple);
1675   async_init_data_free (data);
1676 }
1677
1678 static void
1679 async_init_call_start_service_by_name (AsyncInitData *data)
1680 {
1681   g_dbus_connection_call (data->proxy->priv->connection,
1682                           "org.freedesktop.DBus",  /* name */
1683                           "/org/freedesktop/DBus", /* object path */
1684                           "org.freedesktop.DBus",  /* interface */
1685                           "StartServiceByName",
1686                           g_variant_new ("(su)",
1687                                          data->proxy->priv->name,
1688                                          0),
1689                           G_VARIANT_TYPE ("(u)"),
1690                           G_DBUS_CALL_FLAGS_NONE,
1691                           -1,           /* timeout */
1692                           data->cancellable,
1693                           (GAsyncReadyCallback) async_init_start_service_by_name_cb,
1694                           data);
1695 }
1696
1697 static void
1698 async_initable_init_second_async (GAsyncInitable      *initable,
1699                                   gint                 io_priority,
1700                                   GCancellable        *cancellable,
1701                                   GAsyncReadyCallback  callback,
1702                                   gpointer             user_data)
1703 {
1704   GDBusProxy *proxy = G_DBUS_PROXY (initable);
1705   AsyncInitData *data;
1706
1707   data = g_new0 (AsyncInitData, 1);
1708   data->proxy = g_object_ref (proxy);
1709   data->cancellable = cancellable != NULL ? g_object_ref (cancellable) : NULL;
1710   data->simple = g_simple_async_result_new (G_OBJECT (proxy),
1711                                             callback,
1712                                             user_data,
1713                                             NULL);
1714   g_simple_async_result_set_check_cancellable (data->simple, cancellable);
1715
1716   /* Check name ownership asynchronously - possibly also start the service */
1717   if (proxy->priv->name == NULL)
1718     {
1719       /* Do nothing */
1720       async_init_data_set_name_owner (data, NULL);
1721     }
1722   else if (g_dbus_is_unique_name (proxy->priv->name))
1723     {
1724       async_init_data_set_name_owner (data, proxy->priv->name);
1725     }
1726   else
1727     {
1728       if ((proxy->priv->flags & G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START) ||
1729           (proxy->priv->flags & G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START_AT_CONSTRUCTION))
1730         {
1731           async_init_call_get_name_owner (data);
1732         }
1733       else
1734         {
1735           async_init_call_start_service_by_name (data);
1736         }
1737     }
1738 }
1739
1740 static gboolean
1741 async_initable_init_second_finish (GAsyncInitable  *initable,
1742                                    GAsyncResult    *res,
1743                                    GError         **error)
1744 {
1745   GDBusProxy *proxy = G_DBUS_PROXY (initable);
1746   GSimpleAsyncResult *simple = G_SIMPLE_ASYNC_RESULT (res);
1747   GVariant *result;
1748   gboolean ret;
1749
1750   ret = FALSE;
1751
1752   if (g_simple_async_result_propagate_error (simple, error))
1753     goto out;
1754
1755   result = g_simple_async_result_get_op_res_gpointer (simple);
1756   if (result != NULL)
1757     {
1758       process_get_all_reply (proxy, result);
1759     }
1760
1761   ret = TRUE;
1762
1763  out:
1764   proxy->priv->initialized = TRUE;
1765   return ret;
1766 }
1767
1768 /* ---------------------------------------------------------------------------------------------------- */
1769
1770 static void
1771 async_initable_init_first (GAsyncInitable *initable)
1772 {
1773   GDBusProxy *proxy = G_DBUS_PROXY (initable);
1774
1775   if (!(proxy->priv->flags & G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES))
1776     {
1777       /* subscribe to PropertiesChanged() */
1778       proxy->priv->properties_changed_subscription_id =
1779         g_dbus_connection_signal_subscribe (proxy->priv->connection,
1780                                             proxy->priv->name,
1781                                             "org.freedesktop.DBus.Properties",
1782                                             "PropertiesChanged",
1783                                             proxy->priv->object_path,
1784                                             proxy->priv->interface_name,
1785                                             G_DBUS_SIGNAL_FLAGS_NONE,
1786                                             on_properties_changed,
1787                                             signal_subscription_ref (proxy->priv->signal_subscription_data),
1788                                             (GDestroyNotify) signal_subscription_unref);
1789     }
1790
1791   if (!(proxy->priv->flags & G_DBUS_PROXY_FLAGS_DO_NOT_CONNECT_SIGNALS))
1792     {
1793       /* subscribe to all signals for the object */
1794       proxy->priv->signals_subscription_id =
1795         g_dbus_connection_signal_subscribe (proxy->priv->connection,
1796                                             proxy->priv->name,
1797                                             proxy->priv->interface_name,
1798                                             NULL,                        /* member */
1799                                             proxy->priv->object_path,
1800                                             NULL,                        /* arg0 */
1801                                             G_DBUS_SIGNAL_FLAGS_NONE,
1802                                             on_signal_received,
1803                                             signal_subscription_ref (proxy->priv->signal_subscription_data),
1804                                             (GDestroyNotify) signal_subscription_unref);
1805     }
1806
1807   if (proxy->priv->name != NULL && !g_dbus_is_unique_name (proxy->priv->name))
1808     {
1809       proxy->priv->name_owner_changed_subscription_id =
1810         g_dbus_connection_signal_subscribe (proxy->priv->connection,
1811                                             "org.freedesktop.DBus",  /* name */
1812                                             "org.freedesktop.DBus",  /* interface */
1813                                             "NameOwnerChanged",      /* signal name */
1814                                             "/org/freedesktop/DBus", /* path */
1815                                             proxy->priv->name,       /* arg0 */
1816                                             G_DBUS_SIGNAL_FLAGS_NONE,
1817                                             on_name_owner_changed,
1818                                             signal_subscription_ref (proxy->priv->signal_subscription_data),
1819                                             (GDestroyNotify) signal_subscription_unref);
1820     }
1821 }
1822
1823 /* ---------------------------------------------------------------------------------------------------- */
1824
1825 /* initialization is split into two parts - the first is the
1826  * non-blocing part that requires the callers GMainContext - the
1827  * second is a blocking part async part that doesn't require the
1828  * callers GMainContext.. we do this split so the code can be reused
1829  * in the GInitable implementation below.
1830  *
1831  * Note that obtaining a GDBusConnection is not shared between the two
1832  * paths.
1833  */
1834
1835 typedef struct
1836 {
1837   GDBusProxy          *proxy;
1838   gint                 io_priority;
1839   GCancellable        *cancellable;
1840   GAsyncReadyCallback  callback;
1841   gpointer             user_data;
1842 } GetConnectionData;
1843
1844 static void
1845 get_connection_cb (GObject       *source_object,
1846                    GAsyncResult  *res,
1847                    gpointer       user_data)
1848 {
1849   GetConnectionData *data = user_data;
1850   GError *error;
1851
1852   error = NULL;
1853   data->proxy->priv->connection = g_bus_get_finish (res, &error);
1854   if (data->proxy->priv->connection == NULL)
1855     {
1856       GSimpleAsyncResult *simple;
1857       simple = g_simple_async_result_new (G_OBJECT (data->proxy),
1858                                           data->callback,
1859                                           data->user_data,
1860                                           NULL);
1861       g_simple_async_result_set_check_cancellable (simple, data->cancellable);
1862       g_simple_async_result_take_error (simple, error);
1863       g_simple_async_result_complete_in_idle (simple);
1864       g_object_unref (simple);
1865     }
1866   else
1867     {
1868       async_initable_init_first (G_ASYNC_INITABLE (data->proxy));
1869       async_initable_init_second_async (G_ASYNC_INITABLE (data->proxy),
1870                                         data->io_priority,
1871                                         data->cancellable,
1872                                         data->callback,
1873                                         data->user_data);
1874     }
1875
1876   if (data->cancellable != NULL)
1877     g_object_unref (data->cancellable);
1878
1879   g_object_unref (data->proxy);
1880   g_free (data);
1881 }
1882
1883 static void
1884 async_initable_init_async (GAsyncInitable      *initable,
1885                            gint                 io_priority,
1886                            GCancellable        *cancellable,
1887                            GAsyncReadyCallback  callback,
1888                            gpointer             user_data)
1889 {
1890   GDBusProxy *proxy = G_DBUS_PROXY (initable);
1891
1892   if (proxy->priv->bus_type != G_BUS_TYPE_NONE)
1893     {
1894       GetConnectionData *data;
1895
1896       g_assert (proxy->priv->connection == NULL);
1897
1898       data = g_new0 (GetConnectionData, 1);
1899       data->proxy = g_object_ref (proxy);
1900       data->io_priority = io_priority;
1901       data->cancellable = cancellable != NULL ? g_object_ref (cancellable) : NULL;
1902       data->callback = callback;
1903       data->user_data = user_data;
1904       g_bus_get (proxy->priv->bus_type,
1905                  cancellable,
1906                  get_connection_cb,
1907                  data);
1908     }
1909   else
1910     {
1911       async_initable_init_first (initable);
1912       async_initable_init_second_async (initable, io_priority, cancellable, callback, user_data);
1913     }
1914 }
1915
1916 static gboolean
1917 async_initable_init_finish (GAsyncInitable  *initable,
1918                             GAsyncResult    *res,
1919                             GError         **error)
1920 {
1921   return async_initable_init_second_finish (initable, res, error);
1922 }
1923
1924 static void
1925 async_initable_iface_init (GAsyncInitableIface *async_initable_iface)
1926 {
1927   async_initable_iface->init_async = async_initable_init_async;
1928   async_initable_iface->init_finish = async_initable_init_finish;
1929 }
1930
1931 /* ---------------------------------------------------------------------------------------------------- */
1932
1933 typedef struct
1934 {
1935   GMainContext *context;
1936   GMainLoop *loop;
1937   GAsyncResult *res;
1938 } InitableAsyncInitableData;
1939
1940 static void
1941 async_initable_init_async_cb (GObject      *source_object,
1942                               GAsyncResult *res,
1943                               gpointer      user_data)
1944 {
1945   InitableAsyncInitableData *data = user_data;
1946   data->res = g_object_ref (res);
1947   g_main_loop_quit (data->loop);
1948 }
1949
1950 /* Simply reuse the GAsyncInitable implementation but run the first
1951  * part (that is non-blocking and requires the callers GMainContext)
1952  * with the callers GMainContext.. and the second with a private
1953  * GMainContext (bug 621310 is slightly related).
1954  *
1955  * Note that obtaining a GDBusConnection is not shared between the two
1956  * paths.
1957  */
1958 static gboolean
1959 initable_init (GInitable     *initable,
1960                GCancellable  *cancellable,
1961                GError       **error)
1962 {
1963   GDBusProxy *proxy = G_DBUS_PROXY (initable);
1964   InitableAsyncInitableData *data;
1965   gboolean ret;
1966
1967   ret = FALSE;
1968
1969   if (proxy->priv->bus_type != G_BUS_TYPE_NONE)
1970     {
1971       g_assert (proxy->priv->connection == NULL);
1972       proxy->priv->connection = g_bus_get_sync (proxy->priv->bus_type,
1973                                                 cancellable,
1974                                                 error);
1975       if (proxy->priv->connection == NULL)
1976         goto out;
1977     }
1978
1979   async_initable_init_first (G_ASYNC_INITABLE (initable));
1980
1981   data = g_new0 (InitableAsyncInitableData, 1);
1982   data->context = g_main_context_new ();
1983   data->loop = g_main_loop_new (data->context, FALSE);
1984
1985   g_main_context_push_thread_default (data->context);
1986
1987   async_initable_init_second_async (G_ASYNC_INITABLE (initable),
1988                                     G_PRIORITY_DEFAULT,
1989                                     cancellable,
1990                                     async_initable_init_async_cb,
1991                                     data);
1992
1993   g_main_loop_run (data->loop);
1994
1995   ret = async_initable_init_second_finish (G_ASYNC_INITABLE (initable),
1996                                            data->res,
1997                                            error);
1998
1999   g_main_context_pop_thread_default (data->context);
2000
2001   g_main_context_unref (data->context);
2002   g_main_loop_unref (data->loop);
2003   g_object_unref (data->res);
2004   g_free (data);
2005
2006  out:
2007
2008   return ret;
2009 }
2010
2011 static void
2012 initable_iface_init (GInitableIface *initable_iface)
2013 {
2014   initable_iface->init = initable_init;
2015 }
2016
2017 /* ---------------------------------------------------------------------------------------------------- */
2018
2019 /**
2020  * g_dbus_proxy_new:
2021  * @connection: A #GDBusConnection.
2022  * @flags: Flags used when constructing the proxy.
2023  * @info: (allow-none): A #GDBusInterfaceInfo specifying the minimal interface that @proxy conforms to or %NULL.
2024  * @name: (allow-none): A bus name (well-known or unique) or %NULL if @connection is not a message bus connection.
2025  * @object_path: An object path.
2026  * @interface_name: A D-Bus interface name.
2027  * @cancellable: (allow-none): A #GCancellable or %NULL.
2028  * @callback: Callback function to invoke when the proxy is ready.
2029  * @user_data: User data to pass to @callback.
2030  *
2031  * Creates a proxy for accessing @interface_name on the remote object
2032  * at @object_path owned by @name at @connection and asynchronously
2033  * loads D-Bus properties unless the
2034  * %G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES flag is used. Connect to
2035  * the #GDBusProxy::g-properties-changed signal to get notified about
2036  * property changes.
2037  *
2038  * If the %G_DBUS_PROXY_FLAGS_DO_NOT_CONNECT_SIGNALS flag is not set, also sets up
2039  * match rules for signals. Connect to the #GDBusProxy::g-signal signal
2040  * to handle signals from the remote object.
2041  *
2042  * If @name is a well-known name and the
2043  * %G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START and %G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START_AT_CONSTRUCTION
2044  * flags aren't set and no name owner currently exists, the message bus
2045  * will be requested to launch a name owner for the name.
2046  *
2047  * This is a failable asynchronous constructor - when the proxy is
2048  * ready, @callback will be invoked and you can use
2049  * g_dbus_proxy_new_finish() to get the result.
2050  *
2051  * See g_dbus_proxy_new_sync() and for a synchronous version of this constructor.
2052  *
2053  * See <xref linkend="gdbus-wellknown-proxy"/> for an example of how #GDBusProxy can be used.
2054  *
2055  * Since: 2.26
2056  */
2057 void
2058 g_dbus_proxy_new (GDBusConnection     *connection,
2059                   GDBusProxyFlags      flags,
2060                   GDBusInterfaceInfo  *info,
2061                   const gchar         *name,
2062                   const gchar         *object_path,
2063                   const gchar         *interface_name,
2064                   GCancellable        *cancellable,
2065                   GAsyncReadyCallback  callback,
2066                   gpointer             user_data)
2067 {
2068   g_return_if_fail (G_IS_DBUS_CONNECTION (connection));
2069   g_return_if_fail ((name == NULL && g_dbus_connection_get_unique_name (connection) == NULL) || g_dbus_is_name (name));
2070   g_return_if_fail (g_variant_is_object_path (object_path));
2071   g_return_if_fail (g_dbus_is_interface_name (interface_name));
2072
2073   g_async_initable_new_async (G_TYPE_DBUS_PROXY,
2074                               G_PRIORITY_DEFAULT,
2075                               cancellable,
2076                               callback,
2077                               user_data,
2078                               "g-flags", flags,
2079                               "g-interface-info", info,
2080                               "g-name", name,
2081                               "g-connection", connection,
2082                               "g-object-path", object_path,
2083                               "g-interface-name", interface_name,
2084                               NULL);
2085 }
2086
2087 /**
2088  * g_dbus_proxy_new_finish:
2089  * @res: A #GAsyncResult obtained from the #GAsyncReadyCallback function passed to g_dbus_proxy_new().
2090  * @error: Return location for error or %NULL.
2091  *
2092  * Finishes creating a #GDBusProxy.
2093  *
2094  * Returns: A #GDBusProxy or %NULL if @error is set. Free with g_object_unref().
2095  *
2096  * Since: 2.26
2097  */
2098 GDBusProxy *
2099 g_dbus_proxy_new_finish (GAsyncResult  *res,
2100                          GError       **error)
2101 {
2102   GObject *object;
2103   GObject *source_object;
2104
2105   source_object = g_async_result_get_source_object (res);
2106   g_assert (source_object != NULL);
2107
2108   object = g_async_initable_new_finish (G_ASYNC_INITABLE (source_object),
2109                                         res,
2110                                         error);
2111   g_object_unref (source_object);
2112
2113   if (object != NULL)
2114     return G_DBUS_PROXY (object);
2115   else
2116     return NULL;
2117 }
2118
2119 /**
2120  * g_dbus_proxy_new_sync:
2121  * @connection: A #GDBusConnection.
2122  * @flags: Flags used when constructing the proxy.
2123  * @info: (allow-none): A #GDBusInterfaceInfo specifying the minimal interface that @proxy conforms to or %NULL.
2124  * @name: (allow-none): A bus name (well-known or unique) or %NULL if @connection is not a message bus connection.
2125  * @object_path: An object path.
2126  * @interface_name: A D-Bus interface name.
2127  * @cancellable: (allow-none): A #GCancellable or %NULL.
2128  * @error: (allow-none): Return location for error or %NULL.
2129  *
2130  * Creates a proxy for accessing @interface_name on the remote object
2131  * at @object_path owned by @name at @connection and synchronously
2132  * loads D-Bus properties unless the
2133  * %G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES flag is used.
2134  *
2135  * If the %G_DBUS_PROXY_FLAGS_DO_NOT_CONNECT_SIGNALS flag is not set, also sets up
2136  * match rules for signals. Connect to the #GDBusProxy::g-signal signal
2137  * to handle signals from the remote object.
2138  *
2139  * If @name is a well-known name and the
2140  * %G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START and %G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START_AT_CONSTRUCTION
2141  * flags aren't set and no name owner currently exists, the message bus
2142  * will be requested to launch a name owner for the name.
2143  *
2144  * This is a synchronous failable constructor. See g_dbus_proxy_new()
2145  * and g_dbus_proxy_new_finish() for the asynchronous version.
2146  *
2147  * See <xref linkend="gdbus-wellknown-proxy"/> for an example of how #GDBusProxy can be used.
2148  *
2149  * Returns: A #GDBusProxy or %NULL if error is set. Free with g_object_unref().
2150  *
2151  * Since: 2.26
2152  */
2153 GDBusProxy *
2154 g_dbus_proxy_new_sync (GDBusConnection     *connection,
2155                        GDBusProxyFlags      flags,
2156                        GDBusInterfaceInfo  *info,
2157                        const gchar         *name,
2158                        const gchar         *object_path,
2159                        const gchar         *interface_name,
2160                        GCancellable        *cancellable,
2161                        GError             **error)
2162 {
2163   GInitable *initable;
2164
2165   g_return_val_if_fail (G_IS_DBUS_CONNECTION (connection), NULL);
2166   g_return_val_if_fail ((name == NULL && g_dbus_connection_get_unique_name (connection) == NULL) ||
2167                         g_dbus_is_name (name), NULL);
2168   g_return_val_if_fail (g_variant_is_object_path (object_path), NULL);
2169   g_return_val_if_fail (g_dbus_is_interface_name (interface_name), NULL);
2170
2171   initable = g_initable_new (G_TYPE_DBUS_PROXY,
2172                              cancellable,
2173                              error,
2174                              "g-flags", flags,
2175                              "g-interface-info", info,
2176                              "g-name", name,
2177                              "g-connection", connection,
2178                              "g-object-path", object_path,
2179                              "g-interface-name", interface_name,
2180                              NULL);
2181   if (initable != NULL)
2182     return G_DBUS_PROXY (initable);
2183   else
2184     return NULL;
2185 }
2186
2187 /* ---------------------------------------------------------------------------------------------------- */
2188
2189 /**
2190  * g_dbus_proxy_new_for_bus:
2191  * @bus_type: A #GBusType.
2192  * @flags: Flags used when constructing the proxy.
2193  * @info: (allow-none): A #GDBusInterfaceInfo specifying the minimal interface that @proxy conforms to or %NULL.
2194  * @name: A bus name (well-known or unique).
2195  * @object_path: An object path.
2196  * @interface_name: A D-Bus interface name.
2197  * @cancellable: (allow-none): A #GCancellable or %NULL.
2198  * @callback: Callback function to invoke when the proxy is ready.
2199  * @user_data: User data to pass to @callback.
2200  *
2201  * Like g_dbus_proxy_new() but takes a #GBusType instead of a #GDBusConnection.
2202  *
2203  * See <xref linkend="gdbus-wellknown-proxy"/> for an example of how #GDBusProxy can be used.
2204  *
2205  * Since: 2.26
2206  */
2207 void
2208 g_dbus_proxy_new_for_bus (GBusType             bus_type,
2209                           GDBusProxyFlags      flags,
2210                           GDBusInterfaceInfo  *info,
2211                           const gchar         *name,
2212                           const gchar         *object_path,
2213                           const gchar         *interface_name,
2214                           GCancellable        *cancellable,
2215                           GAsyncReadyCallback  callback,
2216                           gpointer             user_data)
2217 {
2218   g_return_if_fail (g_dbus_is_name (name));
2219   g_return_if_fail (g_variant_is_object_path (object_path));
2220   g_return_if_fail (g_dbus_is_interface_name (interface_name));
2221
2222   g_async_initable_new_async (G_TYPE_DBUS_PROXY,
2223                               G_PRIORITY_DEFAULT,
2224                               cancellable,
2225                               callback,
2226                               user_data,
2227                               "g-flags", flags,
2228                               "g-interface-info", info,
2229                               "g-name", name,
2230                               "g-bus-type", bus_type,
2231                               "g-object-path", object_path,
2232                               "g-interface-name", interface_name,
2233                               NULL);
2234 }
2235
2236 /**
2237  * g_dbus_proxy_new_for_bus_finish:
2238  * @res: A #GAsyncResult obtained from the #GAsyncReadyCallback function passed to g_dbus_proxy_new_for_bus().
2239  * @error: Return location for error or %NULL.
2240  *
2241  * Finishes creating a #GDBusProxy.
2242  *
2243  * Returns: A #GDBusProxy or %NULL if @error is set. Free with g_object_unref().
2244  *
2245  * Since: 2.26
2246  */
2247 GDBusProxy *
2248 g_dbus_proxy_new_for_bus_finish (GAsyncResult  *res,
2249                                  GError       **error)
2250 {
2251   return g_dbus_proxy_new_finish (res, error);
2252 }
2253
2254 /**
2255  * g_dbus_proxy_new_for_bus_sync:
2256  * @bus_type: A #GBusType.
2257  * @flags: Flags used when constructing the proxy.
2258  * @info: (allow-none): A #GDBusInterfaceInfo specifying the minimal interface
2259  *        that @proxy conforms to or %NULL.
2260  * @name: A bus name (well-known or unique).
2261  * @object_path: An object path.
2262  * @interface_name: A D-Bus interface name.
2263  * @cancellable: (allow-none): A #GCancellable or %NULL.
2264  * @error: Return location for error or %NULL.
2265  *
2266  * Like g_dbus_proxy_new_sync() but takes a #GBusType instead of a #GDBusConnection.
2267  *
2268  * See <xref linkend="gdbus-wellknown-proxy"/> for an example of how #GDBusProxy can be used.
2269  *
2270  * Returns: A #GDBusProxy or %NULL if error is set. Free with g_object_unref().
2271  *
2272  * Since: 2.26
2273  */
2274 GDBusProxy *
2275 g_dbus_proxy_new_for_bus_sync (GBusType             bus_type,
2276                                GDBusProxyFlags      flags,
2277                                GDBusInterfaceInfo  *info,
2278                                const gchar         *name,
2279                                const gchar         *object_path,
2280                                const gchar         *interface_name,
2281                                GCancellable        *cancellable,
2282                                GError             **error)
2283 {
2284   GInitable *initable;
2285
2286   g_return_val_if_fail (g_dbus_is_name (name), NULL);
2287   g_return_val_if_fail (g_variant_is_object_path (object_path), NULL);
2288   g_return_val_if_fail (g_dbus_is_interface_name (interface_name), NULL);
2289
2290   initable = g_initable_new (G_TYPE_DBUS_PROXY,
2291                              cancellable,
2292                              error,
2293                              "g-flags", flags,
2294                              "g-interface-info", info,
2295                              "g-name", name,
2296                              "g-bus-type", bus_type,
2297                              "g-object-path", object_path,
2298                              "g-interface-name", interface_name,
2299                              NULL);
2300   if (initable != NULL)
2301     return G_DBUS_PROXY (initable);
2302   else
2303     return NULL;
2304 }
2305
2306 /* ---------------------------------------------------------------------------------------------------- */
2307
2308 /**
2309  * g_dbus_proxy_get_connection:
2310  * @proxy: A #GDBusProxy.
2311  *
2312  * Gets the connection @proxy is for.
2313  *
2314  * Returns: (transfer none): A #GDBusConnection owned by @proxy. Do not free.
2315  *
2316  * Since: 2.26
2317  */
2318 GDBusConnection *
2319 g_dbus_proxy_get_connection (GDBusProxy *proxy)
2320 {
2321   g_return_val_if_fail (G_IS_DBUS_PROXY (proxy), NULL);
2322   return proxy->priv->connection;
2323 }
2324
2325 /**
2326  * g_dbus_proxy_get_flags:
2327  * @proxy: A #GDBusProxy.
2328  *
2329  * Gets the flags that @proxy was constructed with.
2330  *
2331  * Returns: Flags from the #GDBusProxyFlags enumeration.
2332  *
2333  * Since: 2.26
2334  */
2335 GDBusProxyFlags
2336 g_dbus_proxy_get_flags (GDBusProxy *proxy)
2337 {
2338   g_return_val_if_fail (G_IS_DBUS_PROXY (proxy), 0);
2339   return proxy->priv->flags;
2340 }
2341
2342 /**
2343  * g_dbus_proxy_get_name:
2344  * @proxy: A #GDBusProxy.
2345  *
2346  * Gets the name that @proxy was constructed for.
2347  *
2348  * Returns: A string owned by @proxy. Do not free.
2349  *
2350  * Since: 2.26
2351  */
2352 const gchar *
2353 g_dbus_proxy_get_name (GDBusProxy *proxy)
2354 {
2355   g_return_val_if_fail (G_IS_DBUS_PROXY (proxy), NULL);
2356   return proxy->priv->name;
2357 }
2358
2359 /**
2360  * g_dbus_proxy_get_name_owner:
2361  * @proxy: A #GDBusProxy.
2362  *
2363  * The unique name that owns the name that @proxy is for or %NULL if
2364  * no-one currently owns that name. You may connect to the
2365  * #GObject::notify signal to track changes to the
2366  * #GDBusProxy:g-name-owner property.
2367  *
2368  * Returns: The name owner or %NULL if no name owner exists. Free with g_free().
2369  *
2370  * Since: 2.26
2371  */
2372 gchar *
2373 g_dbus_proxy_get_name_owner (GDBusProxy *proxy)
2374 {
2375   gchar *ret;
2376
2377   g_return_val_if_fail (G_IS_DBUS_PROXY (proxy), NULL);
2378
2379   G_LOCK (properties_lock);
2380   ret = g_strdup (proxy->priv->name_owner);
2381   G_UNLOCK (properties_lock);
2382   return ret;
2383 }
2384
2385 /**
2386  * g_dbus_proxy_get_object_path:
2387  * @proxy: A #GDBusProxy.
2388  *
2389  * Gets the object path @proxy is for.
2390  *
2391  * Returns: A string owned by @proxy. Do not free.
2392  *
2393  * Since: 2.26
2394  */
2395 const gchar *
2396 g_dbus_proxy_get_object_path (GDBusProxy *proxy)
2397 {
2398   g_return_val_if_fail (G_IS_DBUS_PROXY (proxy), NULL);
2399   return proxy->priv->object_path;
2400 }
2401
2402 /**
2403  * g_dbus_proxy_get_interface_name:
2404  * @proxy: A #GDBusProxy.
2405  *
2406  * Gets the D-Bus interface name @proxy is for.
2407  *
2408  * Returns: A string owned by @proxy. Do not free.
2409  *
2410  * Since: 2.26
2411  */
2412 const gchar *
2413 g_dbus_proxy_get_interface_name (GDBusProxy *proxy)
2414 {
2415   g_return_val_if_fail (G_IS_DBUS_PROXY (proxy), NULL);
2416   return proxy->priv->interface_name;
2417 }
2418
2419 /**
2420  * g_dbus_proxy_get_default_timeout:
2421  * @proxy: A #GDBusProxy.
2422  *
2423  * Gets the timeout to use if -1 (specifying default timeout) is
2424  * passed as @timeout_msec in the g_dbus_proxy_call() and
2425  * g_dbus_proxy_call_sync() functions.
2426  *
2427  * See the #GDBusProxy:g-default-timeout property for more details.
2428  *
2429  * Returns: Timeout to use for @proxy.
2430  *
2431  * Since: 2.26
2432  */
2433 gint
2434 g_dbus_proxy_get_default_timeout (GDBusProxy *proxy)
2435 {
2436   gint ret;
2437
2438   g_return_val_if_fail (G_IS_DBUS_PROXY (proxy), -1);
2439
2440   G_LOCK (properties_lock);
2441   ret = proxy->priv->timeout_msec;
2442   G_UNLOCK (properties_lock);
2443   return ret;
2444 }
2445
2446 /**
2447  * g_dbus_proxy_set_default_timeout:
2448  * @proxy: A #GDBusProxy.
2449  * @timeout_msec: Timeout in milliseconds.
2450  *
2451  * Sets the timeout to use if -1 (specifying default timeout) is
2452  * passed as @timeout_msec in the g_dbus_proxy_call() and
2453  * g_dbus_proxy_call_sync() functions.
2454  *
2455  * See the #GDBusProxy:g-default-timeout property for more details.
2456  *
2457  * Since: 2.26
2458  */
2459 void
2460 g_dbus_proxy_set_default_timeout (GDBusProxy *proxy,
2461                                   gint        timeout_msec)
2462 {
2463   g_return_if_fail (G_IS_DBUS_PROXY (proxy));
2464   g_return_if_fail (timeout_msec == -1 || timeout_msec >= 0);
2465
2466   G_LOCK (properties_lock);
2467
2468   if (proxy->priv->timeout_msec != timeout_msec)
2469     {
2470       proxy->priv->timeout_msec = timeout_msec;
2471       G_UNLOCK (properties_lock);
2472
2473       g_object_notify (G_OBJECT (proxy), "g-default-timeout");
2474     }
2475   else
2476     {
2477       G_UNLOCK (properties_lock);
2478     }
2479 }
2480
2481 /**
2482  * g_dbus_proxy_get_interface_info:
2483  * @proxy: A #GDBusProxy
2484  *
2485  * Returns the #GDBusInterfaceInfo, if any, specifying the interface
2486  * that @proxy conforms to. See the #GDBusProxy:g-interface-info
2487  * property for more details.
2488  *
2489  * Returns: A #GDBusInterfaceInfo or %NULL. Do not unref the returned
2490  * object, it is owned by @proxy.
2491  *
2492  * Since: 2.26
2493  */
2494 GDBusInterfaceInfo *
2495 g_dbus_proxy_get_interface_info (GDBusProxy *proxy)
2496 {
2497   GDBusInterfaceInfo *ret;
2498
2499   g_return_val_if_fail (G_IS_DBUS_PROXY (proxy), NULL);
2500
2501   G_LOCK (properties_lock);
2502   ret = proxy->priv->expected_interface;
2503   G_UNLOCK (properties_lock);
2504   /* FIXME: returning a borrowed ref with no guarantee that nobody will
2505    * call g_dbus_proxy_set_interface_info() and make it invalid...
2506    */
2507   return ret;
2508 }
2509
2510 /**
2511  * g_dbus_proxy_set_interface_info:
2512  * @proxy: A #GDBusProxy
2513  * @info: (allow-none): Minimum interface this proxy conforms to or %NULL to unset.
2514  *
2515  * Ensure that interactions with @proxy conform to the given
2516  * interface. See the #GDBusProxy:g-interface-info property for more
2517  * details.
2518  *
2519  * Since: 2.26
2520  */
2521 void
2522 g_dbus_proxy_set_interface_info (GDBusProxy         *proxy,
2523                                  GDBusInterfaceInfo *info)
2524 {
2525   g_return_if_fail (G_IS_DBUS_PROXY (proxy));
2526   G_LOCK (properties_lock);
2527
2528   if (proxy->priv->expected_interface != NULL)
2529     {
2530       g_dbus_interface_info_cache_release (proxy->priv->expected_interface);
2531       g_dbus_interface_info_unref (proxy->priv->expected_interface);
2532     }
2533   proxy->priv->expected_interface = info != NULL ? g_dbus_interface_info_ref (info) : NULL;
2534   if (proxy->priv->expected_interface != NULL)
2535     g_dbus_interface_info_cache_build (proxy->priv->expected_interface);
2536
2537   G_UNLOCK (properties_lock);
2538 }
2539
2540 /* ---------------------------------------------------------------------------------------------------- */
2541
2542 static gboolean
2543 maybe_split_method_name (const gchar  *method_name,
2544                          gchar       **out_interface_name,
2545                          const gchar **out_method_name)
2546 {
2547   gboolean was_split;
2548
2549   was_split = FALSE;
2550   g_assert (out_interface_name != NULL);
2551   g_assert (out_method_name != NULL);
2552   *out_interface_name = NULL;
2553   *out_method_name = NULL;
2554
2555   if (strchr (method_name, '.') != NULL)
2556     {
2557       gchar *p;
2558       gchar *last_dot;
2559
2560       p = g_strdup (method_name);
2561       last_dot = strrchr (p, '.');
2562       *last_dot = '\0';
2563
2564       *out_interface_name = p;
2565       *out_method_name = last_dot + 1;
2566
2567       was_split = TRUE;
2568     }
2569
2570   return was_split;
2571 }
2572
2573 typedef struct
2574 {
2575   GVariant *value;
2576 #ifdef G_OS_UNIX
2577   GUnixFDList *fd_list;
2578 #endif
2579 } ReplyData;
2580
2581 static void
2582 reply_data_free (ReplyData *data)
2583 {
2584   g_variant_unref (data->value);
2585 #ifdef G_OS_UNIX
2586   if (data->fd_list != NULL)
2587     g_object_unref (data->fd_list);
2588 #endif
2589   g_slice_free (ReplyData, data);
2590 }
2591
2592 static void
2593 reply_cb (GDBusConnection *connection,
2594           GAsyncResult    *res,
2595           gpointer         user_data)
2596 {
2597   GSimpleAsyncResult *simple = G_SIMPLE_ASYNC_RESULT (user_data);
2598   GVariant *value;
2599   GError *error;
2600 #ifdef G_OS_UNIX
2601   GUnixFDList *fd_list;
2602 #endif
2603
2604   error = NULL;
2605 #ifdef G_OS_UNIX
2606   value = g_dbus_connection_call_with_unix_fd_list_finish (connection,
2607                                                            &fd_list,
2608                                                            res,
2609                                                            &error);
2610 #else
2611   value = g_dbus_connection_call_finish (connection,
2612                                          res,
2613                                          &error);
2614 #endif
2615   if (error != NULL)
2616     {
2617       g_simple_async_result_take_error (simple, error);
2618     }
2619   else
2620     {
2621       ReplyData *data;
2622       data = g_slice_new0 (ReplyData);
2623       data->value = value;
2624 #ifdef G_OS_UNIX
2625       data->fd_list = fd_list;
2626 #endif
2627       g_simple_async_result_set_op_res_gpointer (simple, data, (GDestroyNotify) reply_data_free);
2628     }
2629
2630   /* no need to complete in idle since the method GDBusConnection already does */
2631   g_simple_async_result_complete (simple);
2632   g_object_unref (simple);
2633 }
2634
2635 /* properties_lock must be held for as long as you will keep the
2636  * returned value
2637  */
2638 static const GDBusMethodInfo *
2639 lookup_method_info (GDBusProxy  *proxy,
2640                     const gchar *method_name)
2641 {
2642   const GDBusMethodInfo *info = NULL;
2643
2644   if (proxy->priv->expected_interface == NULL)
2645     goto out;
2646
2647   info = g_dbus_interface_info_lookup_method (proxy->priv->expected_interface, method_name);
2648
2649 out:
2650   return info;
2651 }
2652
2653 /* properties_lock must be held for as long as you will keep the
2654  * returned value
2655  */
2656 static const gchar *
2657 get_destination_for_call (GDBusProxy *proxy)
2658 {
2659   const gchar *ret;
2660
2661   ret = NULL;
2662
2663   /* If proxy->priv->name is a unique name, then proxy->priv->name_owner
2664    * is never NULL and always the same as proxy->priv->name. We use this
2665    * knowledge to avoid checking if proxy->priv->name is a unique or
2666    * well-known name.
2667    */
2668   ret = proxy->priv->name_owner;
2669   if (ret != NULL)
2670     goto out;
2671
2672   if (proxy->priv->flags & G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START)
2673     goto out;
2674
2675   ret = proxy->priv->name;
2676
2677  out:
2678   return ret;
2679 }
2680
2681 /* ---------------------------------------------------------------------------------------------------- */
2682
2683 static void
2684 g_dbus_proxy_call_internal (GDBusProxy          *proxy,
2685                             const gchar         *method_name,
2686                             GVariant            *parameters,
2687                             GDBusCallFlags       flags,
2688                             gint                 timeout_msec,
2689                             GUnixFDList         *fd_list,
2690                             GCancellable        *cancellable,
2691                             GAsyncReadyCallback  callback,
2692                             gpointer             user_data)
2693 {
2694   GSimpleAsyncResult *simple;
2695   gboolean was_split;
2696   gchar *split_interface_name;
2697   const gchar *split_method_name;
2698   const gchar *target_method_name;
2699   const gchar *target_interface_name;
2700   gchar *destination;
2701   GVariantType *reply_type;
2702   GAsyncReadyCallback my_callback;
2703
2704   g_return_if_fail (G_IS_DBUS_PROXY (proxy));
2705   g_return_if_fail (g_dbus_is_member_name (method_name) || g_dbus_is_interface_name (method_name));
2706   g_return_if_fail (parameters == NULL || g_variant_is_of_type (parameters, G_VARIANT_TYPE_TUPLE));
2707   g_return_if_fail (timeout_msec == -1 || timeout_msec >= 0);
2708 #ifdef G_OS_UNIX
2709   g_return_if_fail (fd_list == NULL || G_IS_UNIX_FD_LIST (fd_list));
2710 #else
2711   g_return_if_fail (fd_list == NULL);
2712 #endif
2713
2714   reply_type = NULL;
2715   split_interface_name = NULL;
2716
2717   /* g_dbus_connection_call() is optimised for the case of a NULL
2718    * callback.  If we get a NULL callback from our user then make sure
2719    * we pass along a NULL callback for ourselves as well.
2720    */
2721   if (callback != NULL)
2722     {
2723       my_callback = (GAsyncReadyCallback) reply_cb;
2724       simple = g_simple_async_result_new (G_OBJECT (proxy),
2725                                           callback,
2726                                           user_data,
2727                                           g_dbus_proxy_call_internal);
2728       g_simple_async_result_set_check_cancellable (simple, cancellable);
2729     }
2730   else
2731     {
2732       my_callback = NULL;
2733       simple = NULL;
2734     }
2735
2736   G_LOCK (properties_lock);
2737
2738   was_split = maybe_split_method_name (method_name, &split_interface_name, &split_method_name);
2739   target_method_name = was_split ? split_method_name : method_name;
2740   target_interface_name = was_split ? split_interface_name : proxy->priv->interface_name;
2741
2742   /* Warn if method is unexpected (cf. :g-interface-info) */
2743   if (!was_split)
2744     {
2745       const GDBusMethodInfo *expected_method_info;
2746       expected_method_info = lookup_method_info (proxy, target_method_name);
2747       if (expected_method_info != NULL)
2748         reply_type = _g_dbus_compute_complete_signature (expected_method_info->out_args);
2749     }
2750
2751   destination = NULL;
2752   if (proxy->priv->name != NULL)
2753     {
2754       destination = g_strdup (get_destination_for_call (proxy));
2755       if (destination == NULL)
2756         {
2757           if (simple != NULL)
2758             {
2759               g_simple_async_result_set_error (simple,
2760                                                G_IO_ERROR,
2761                                                G_IO_ERROR_FAILED,
2762                                                _("Cannot invoke method; proxy is for a well-known name without an owner and proxy was constructed with the G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START flag"));
2763               g_simple_async_result_complete_in_idle (simple);
2764               g_object_unref (simple);
2765             }
2766           G_UNLOCK (properties_lock);
2767           goto out;
2768         }
2769     }
2770
2771   G_UNLOCK (properties_lock);
2772
2773 #ifdef G_OS_UNIX
2774   g_dbus_connection_call_with_unix_fd_list (proxy->priv->connection,
2775                                             destination,
2776                                             proxy->priv->object_path,
2777                                             target_interface_name,
2778                                             target_method_name,
2779                                             parameters,
2780                                             reply_type,
2781                                             flags,
2782                                             timeout_msec == -1 ? proxy->priv->timeout_msec : timeout_msec,
2783                                             fd_list,
2784                                             cancellable,
2785                                             my_callback,
2786                                             simple);
2787 #else
2788   g_dbus_connection_call (proxy->priv->connection,
2789                           destination,
2790                           proxy->priv->object_path,
2791                           target_interface_name,
2792                           target_method_name,
2793                           parameters,
2794                           reply_type,
2795                           flags,
2796                           timeout_msec == -1 ? proxy->priv->timeout_msec : timeout_msec,
2797                           cancellable,
2798                           my_callback,
2799                           simple);
2800 #endif
2801
2802  out:
2803   if (reply_type != NULL)
2804     g_variant_type_free (reply_type);
2805
2806   g_free (destination);
2807   g_free (split_interface_name);
2808 }
2809
2810 static GVariant *
2811 g_dbus_proxy_call_finish_internal (GDBusProxy    *proxy,
2812                                    GUnixFDList  **out_fd_list,
2813                                    GAsyncResult  *res,
2814                                    GError       **error)
2815 {
2816   GSimpleAsyncResult *simple = G_SIMPLE_ASYNC_RESULT (res);
2817   GVariant *value;
2818   ReplyData *data;
2819
2820   g_return_val_if_fail (G_IS_DBUS_PROXY (proxy), NULL);
2821   g_return_val_if_fail (G_IS_ASYNC_RESULT (res), NULL);
2822   g_return_val_if_fail (error == NULL || *error == NULL, NULL);
2823
2824   g_warn_if_fail (g_simple_async_result_get_source_tag (simple) == g_dbus_proxy_call_internal);
2825
2826   value = NULL;
2827
2828   if (g_simple_async_result_propagate_error (simple, error))
2829     goto out;
2830
2831   data = g_simple_async_result_get_op_res_gpointer (simple);
2832   value = g_variant_ref (data->value);
2833 #ifdef G_OS_UNIX
2834   if (out_fd_list != NULL)
2835     *out_fd_list = data->fd_list != NULL ? g_object_ref (data->fd_list) : NULL;
2836 #endif
2837
2838  out:
2839   return value;
2840 }
2841
2842 static GVariant *
2843 g_dbus_proxy_call_sync_internal (GDBusProxy      *proxy,
2844                                  const gchar     *method_name,
2845                                  GVariant        *parameters,
2846                                  GDBusCallFlags   flags,
2847                                  gint             timeout_msec,
2848                                  GUnixFDList     *fd_list,
2849                                  GUnixFDList    **out_fd_list,
2850                                  GCancellable    *cancellable,
2851                                  GError         **error)
2852 {
2853   GVariant *ret;
2854   gboolean was_split;
2855   gchar *split_interface_name;
2856   const gchar *split_method_name;
2857   const gchar *target_method_name;
2858   const gchar *target_interface_name;
2859   gchar *destination;
2860   GVariantType *reply_type;
2861
2862   g_return_val_if_fail (G_IS_DBUS_PROXY (proxy), NULL);
2863   g_return_val_if_fail (g_dbus_is_member_name (method_name) || g_dbus_is_interface_name (method_name), NULL);
2864   g_return_val_if_fail (parameters == NULL || g_variant_is_of_type (parameters, G_VARIANT_TYPE_TUPLE), NULL);
2865   g_return_val_if_fail (timeout_msec == -1 || timeout_msec >= 0, NULL);
2866 #ifdef G_OS_UNIX
2867   g_return_val_if_fail (fd_list == NULL || G_IS_UNIX_FD_LIST (fd_list), NULL);
2868 #else
2869   g_return_val_if_fail (fd_list == NULL, NULL);
2870 #endif
2871   g_return_val_if_fail (error == NULL || *error == NULL, NULL);
2872
2873   reply_type = NULL;
2874
2875   G_LOCK (properties_lock);
2876
2877   was_split = maybe_split_method_name (method_name, &split_interface_name, &split_method_name);
2878   target_method_name = was_split ? split_method_name : method_name;
2879   target_interface_name = was_split ? split_interface_name : proxy->priv->interface_name;
2880
2881   /* Warn if method is unexpected (cf. :g-interface-info) */
2882   if (!was_split)
2883     {
2884       const GDBusMethodInfo *expected_method_info;
2885       expected_method_info = lookup_method_info (proxy, target_method_name);
2886       if (expected_method_info != NULL)
2887         reply_type = _g_dbus_compute_complete_signature (expected_method_info->out_args);
2888     }
2889
2890   destination = NULL;
2891   if (proxy->priv->name != NULL)
2892     {
2893       destination = g_strdup (get_destination_for_call (proxy));
2894       if (destination == NULL)
2895         {
2896           g_set_error_literal (error,
2897                                G_IO_ERROR,
2898                                G_IO_ERROR_FAILED,
2899                                _("Cannot invoke method; proxy is for a well-known name without an owner and proxy was constructed with the G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START flag"));
2900           ret = NULL;
2901           G_UNLOCK (properties_lock);
2902           goto out;
2903         }
2904     }
2905
2906   G_UNLOCK (properties_lock);
2907
2908 #ifdef G_OS_UNIX
2909   ret = g_dbus_connection_call_with_unix_fd_list_sync (proxy->priv->connection,
2910                                                        destination,
2911                                                        proxy->priv->object_path,
2912                                                        target_interface_name,
2913                                                        target_method_name,
2914                                                        parameters,
2915                                                        reply_type,
2916                                                        flags,
2917                                                        timeout_msec == -1 ? proxy->priv->timeout_msec : timeout_msec,
2918                                                        fd_list,
2919                                                        out_fd_list,
2920                                                        cancellable,
2921                                                        error);
2922 #else
2923   ret = g_dbus_connection_call_sync (proxy->priv->connection,
2924                                      destination,
2925                                      proxy->priv->object_path,
2926                                      target_interface_name,
2927                                      target_method_name,
2928                                      parameters,
2929                                      reply_type,
2930                                      flags,
2931                                      timeout_msec == -1 ? proxy->priv->timeout_msec : timeout_msec,
2932                                      cancellable,
2933                                      error);
2934 #endif
2935
2936  out:
2937   if (reply_type != NULL)
2938     g_variant_type_free (reply_type);
2939
2940   g_free (destination);
2941   g_free (split_interface_name);
2942
2943   return ret;
2944 }
2945
2946 /* ---------------------------------------------------------------------------------------------------- */
2947
2948 /**
2949  * g_dbus_proxy_call:
2950  * @proxy: A #GDBusProxy.
2951  * @method_name: Name of method to invoke.
2952  * @parameters: (allow-none): A #GVariant tuple with parameters for the signal or %NULL if not passing parameters.
2953  * @flags: Flags from the #GDBusCallFlags enumeration.
2954  * @timeout_msec: The timeout in milliseconds (with %G_MAXINT meaning
2955  *                "infinite") or -1 to use the proxy default timeout.
2956  * @cancellable: (allow-none): A #GCancellable or %NULL.
2957  * @callback: (allow-none): A #GAsyncReadyCallback to call when the request is satisfied or %NULL if you don't
2958  * care about the result of the method invocation.
2959  * @user_data: The data to pass to @callback.
2960  *
2961  * Asynchronously invokes the @method_name method on @proxy.
2962  *
2963  * If @method_name contains any dots, then @name is split into interface and
2964  * method name parts. This allows using @proxy for invoking methods on
2965  * other interfaces.
2966  *
2967  * If the #GDBusConnection associated with @proxy is closed then
2968  * the operation will fail with %G_IO_ERROR_CLOSED. If
2969  * @cancellable is canceled, the operation will fail with
2970  * %G_IO_ERROR_CANCELLED. If @parameters contains a value not
2971  * compatible with the D-Bus protocol, the operation fails with
2972  * %G_IO_ERROR_INVALID_ARGUMENT.
2973  *
2974  * If the @parameters #GVariant is floating, it is consumed. This allows
2975  * convenient 'inline' use of g_variant_new(), e.g.:
2976  * |[
2977  *  g_dbus_proxy_call (proxy,
2978  *                     "TwoStrings",
2979  *                     g_variant_new ("(ss)",
2980  *                                    "Thing One",
2981  *                                    "Thing Two"),
2982  *                     G_DBUS_CALL_FLAGS_NONE,
2983  *                     -1,
2984  *                     NULL,
2985  *                     (GAsyncReadyCallback) two_strings_done,
2986  *                     &amp;data);
2987  * ]|
2988  *
2989  * If @proxy has an expected interface (see
2990  * #GDBusProxy:g-interface-info) and @method_name is referenced by it,
2991  * then the return value is checked against the return type.
2992  *
2993  * This is an asynchronous method. When the operation is finished,
2994  * @callback will be invoked in the
2995  * <link linkend="g-main-context-push-thread-default">thread-default main loop</link>
2996  * of the thread you are calling this method from.
2997  * You can then call g_dbus_proxy_call_finish() to get the result of
2998  * the operation. See g_dbus_proxy_call_sync() for the synchronous
2999  * version of this method.
3000  *
3001  * If @callback is %NULL then the D-Bus method call message will be sent with
3002  * the %G_DBUS_MESSAGE_FLAGS_NO_REPLY_EXPECTED flag set.
3003  *
3004  * Since: 2.26
3005  */
3006 void
3007 g_dbus_proxy_call (GDBusProxy          *proxy,
3008                    const gchar         *method_name,
3009                    GVariant            *parameters,
3010                    GDBusCallFlags       flags,
3011                    gint                 timeout_msec,
3012                    GCancellable        *cancellable,
3013                    GAsyncReadyCallback  callback,
3014                    gpointer             user_data)
3015 {
3016   g_dbus_proxy_call_internal (proxy, method_name, parameters, flags, timeout_msec, NULL, cancellable, callback, user_data);
3017 }
3018
3019 /**
3020  * g_dbus_proxy_call_finish:
3021  * @proxy: A #GDBusProxy.
3022  * @res: A #GAsyncResult obtained from the #GAsyncReadyCallback passed to g_dbus_proxy_call().
3023  * @error: Return location for error or %NULL.
3024  *
3025  * Finishes an operation started with g_dbus_proxy_call().
3026  *
3027  * Returns: %NULL if @error is set. Otherwise a #GVariant tuple with
3028  * return values. Free with g_variant_unref().
3029  *
3030  * Since: 2.26
3031  */
3032 GVariant *
3033 g_dbus_proxy_call_finish (GDBusProxy    *proxy,
3034                           GAsyncResult  *res,
3035                           GError       **error)
3036 {
3037   return g_dbus_proxy_call_finish_internal (proxy, NULL, res, error);
3038 }
3039
3040 /**
3041  * g_dbus_proxy_call_sync:
3042  * @proxy: A #GDBusProxy.
3043  * @method_name: Name of method to invoke.
3044  * @parameters: (allow-none): A #GVariant tuple with parameters for the signal
3045  *              or %NULL if not passing parameters.
3046  * @flags: Flags from the #GDBusCallFlags enumeration.
3047  * @timeout_msec: The timeout in milliseconds (with %G_MAXINT meaning
3048  *                "infinite") or -1 to use the proxy default timeout.
3049  * @cancellable: (allow-none): A #GCancellable or %NULL.
3050  * @error: Return location for error or %NULL.
3051  *
3052  * Synchronously invokes the @method_name method on @proxy.
3053  *
3054  * If @method_name contains any dots, then @name is split into interface and
3055  * method name parts. This allows using @proxy for invoking methods on
3056  * other interfaces.
3057  *
3058  * If the #GDBusConnection associated with @proxy is disconnected then
3059  * the operation will fail with %G_IO_ERROR_CLOSED. If
3060  * @cancellable is canceled, the operation will fail with
3061  * %G_IO_ERROR_CANCELLED. If @parameters contains a value not
3062  * compatible with the D-Bus protocol, the operation fails with
3063  * %G_IO_ERROR_INVALID_ARGUMENT.
3064  *
3065  * If the @parameters #GVariant is floating, it is consumed. This allows
3066  * convenient 'inline' use of g_variant_new(), e.g.:
3067  * |[
3068  *  g_dbus_proxy_call_sync (proxy,
3069  *                          "TwoStrings",
3070  *                          g_variant_new ("(ss)",
3071  *                                         "Thing One",
3072  *                                         "Thing Two"),
3073  *                          G_DBUS_CALL_FLAGS_NONE,
3074  *                          -1,
3075  *                          NULL,
3076  *                          &amp;error);
3077  * ]|
3078  *
3079  * The calling thread is blocked until a reply is received. See
3080  * g_dbus_proxy_call() for the asynchronous version of this
3081  * method.
3082  *
3083  * If @proxy has an expected interface (see
3084  * #GDBusProxy:g-interface-info) and @method_name is referenced by it,
3085  * then the return value is checked against the return type.
3086  *
3087  * Returns: %NULL if @error is set. Otherwise a #GVariant tuple with
3088  * return values. Free with g_variant_unref().
3089  *
3090  * Since: 2.26
3091  */
3092 GVariant *
3093 g_dbus_proxy_call_sync (GDBusProxy      *proxy,
3094                         const gchar     *method_name,
3095                         GVariant        *parameters,
3096                         GDBusCallFlags   flags,
3097                         gint             timeout_msec,
3098                         GCancellable    *cancellable,
3099                         GError         **error)
3100 {
3101   return g_dbus_proxy_call_sync_internal (proxy, method_name, parameters, flags, timeout_msec, NULL, NULL, cancellable, error);
3102 }
3103
3104 /* ---------------------------------------------------------------------------------------------------- */
3105
3106 #ifdef G_OS_UNIX
3107
3108 /**
3109  * g_dbus_proxy_call_with_unix_fd_list:
3110  * @proxy: A #GDBusProxy.
3111  * @method_name: Name of method to invoke.
3112  * @parameters: (allow-none): A #GVariant tuple with parameters for the signal or %NULL if not passing parameters.
3113  * @flags: Flags from the #GDBusCallFlags enumeration.
3114  * @timeout_msec: The timeout in milliseconds (with %G_MAXINT meaning
3115  *                "infinite") or -1 to use the proxy default timeout.
3116  * @fd_list: (allow-none): A #GUnixFDList or %NULL.
3117  * @cancellable: (allow-none): A #GCancellable or %NULL.
3118  * @callback: (allow-none): A #GAsyncReadyCallback to call when the request is satisfied or %NULL if you don't
3119  * care about the result of the method invocation.
3120  * @user_data: The data to pass to @callback.
3121  *
3122  * Like g_dbus_proxy_call() but also takes a #GUnixFDList object.
3123  *
3124  * This method is only available on UNIX.
3125  *
3126  * Since: 2.30
3127  */
3128 void
3129 g_dbus_proxy_call_with_unix_fd_list (GDBusProxy          *proxy,
3130                                      const gchar         *method_name,
3131                                      GVariant            *parameters,
3132                                      GDBusCallFlags       flags,
3133                                      gint                 timeout_msec,
3134                                      GUnixFDList         *fd_list,
3135                                      GCancellable        *cancellable,
3136                                      GAsyncReadyCallback  callback,
3137                                      gpointer             user_data)
3138 {
3139   g_dbus_proxy_call_internal (proxy, method_name, parameters, flags, timeout_msec, fd_list, cancellable, callback, user_data);
3140 }
3141
3142 /**
3143  * g_dbus_proxy_call_with_unix_fd_list_finish:
3144  * @proxy: A #GDBusProxy.
3145  * @out_fd_list: (out) (allow-none): Return location for a #GUnixFDList or %NULL.
3146  * @res: A #GAsyncResult obtained from the #GAsyncReadyCallback passed to g_dbus_proxy_call_with_unix_fd_list().
3147  * @error: Return location for error or %NULL.
3148  *
3149  * Finishes an operation started with g_dbus_proxy_call_with_unix_fd_list().
3150  *
3151  * Returns: %NULL if @error is set. Otherwise a #GVariant tuple with
3152  * return values. Free with g_variant_unref().
3153  *
3154  * Since: 2.30
3155  */
3156 GVariant *
3157 g_dbus_proxy_call_with_unix_fd_list_finish (GDBusProxy    *proxy,
3158                                             GUnixFDList  **out_fd_list,
3159                                             GAsyncResult  *res,
3160                                             GError       **error)
3161 {
3162   return g_dbus_proxy_call_finish_internal (proxy, out_fd_list, res, error);
3163 }
3164
3165 /**
3166  * g_dbus_proxy_call_with_unix_fd_list_sync:
3167  * @proxy: A #GDBusProxy.
3168  * @method_name: Name of method to invoke.
3169  * @parameters: (allow-none): A #GVariant tuple with parameters for the signal
3170  *              or %NULL if not passing parameters.
3171  * @flags: Flags from the #GDBusCallFlags enumeration.
3172  * @timeout_msec: The timeout in milliseconds (with %G_MAXINT meaning
3173  *                "infinite") or -1 to use the proxy default timeout.
3174  * @fd_list: (allow-none): A #GUnixFDList or %NULL.
3175  * @out_fd_list: (out) (allow-none): Return location for a #GUnixFDList or %NULL.
3176  * @cancellable: (allow-none): A #GCancellable or %NULL.
3177  * @error: Return location for error or %NULL.
3178  *
3179  * Like g_dbus_proxy_call_sync() but also takes and returns #GUnixFDList objects.
3180  *
3181  * This method is only available on UNIX.
3182  *
3183  * Returns: %NULL if @error is set. Otherwise a #GVariant tuple with
3184  * return values. Free with g_variant_unref().
3185  *
3186  * Since: 2.30
3187  */
3188 GVariant *
3189 g_dbus_proxy_call_with_unix_fd_list_sync (GDBusProxy      *proxy,
3190                                           const gchar     *method_name,
3191                                           GVariant        *parameters,
3192                                           GDBusCallFlags   flags,
3193                                           gint             timeout_msec,
3194                                           GUnixFDList     *fd_list,
3195                                           GUnixFDList    **out_fd_list,
3196                                           GCancellable    *cancellable,
3197                                           GError         **error)
3198 {
3199   return g_dbus_proxy_call_sync_internal (proxy, method_name, parameters, flags, timeout_msec, fd_list, out_fd_list, cancellable, error);
3200 }
3201
3202 #endif /* G_OS_UNIX */
3203
3204 /* ---------------------------------------------------------------------------------------------------- */
3205
3206 static GDBusInterfaceInfo *
3207 _g_dbus_proxy_get_info (GDBusInterface *interface)
3208 {
3209   GDBusProxy *proxy = G_DBUS_PROXY (interface);
3210   return g_dbus_proxy_get_interface_info (proxy);
3211 }
3212
3213 static GDBusObject *
3214 _g_dbus_proxy_get_object (GDBusInterface *interface)
3215 {
3216   GDBusProxy *proxy = G_DBUS_PROXY (interface);
3217   return proxy->priv->object;
3218 }
3219
3220 static GDBusObject *
3221 _g_dbus_proxy_dup_object (GDBusInterface *interface)
3222 {
3223   GDBusProxy *proxy = G_DBUS_PROXY (interface);
3224   GDBusObject *ret = NULL;
3225
3226   G_LOCK (properties_lock);
3227   if (proxy->priv->object != NULL)
3228     ret = g_object_ref (proxy->priv->object);
3229   G_UNLOCK (properties_lock);
3230   return ret;
3231 }
3232
3233 static void
3234 _g_dbus_proxy_set_object (GDBusInterface *interface,
3235                           GDBusObject    *object)
3236 {
3237   GDBusProxy *proxy = G_DBUS_PROXY (interface);
3238   G_LOCK (properties_lock);
3239   if (proxy->priv->object != NULL)
3240     g_object_remove_weak_pointer (G_OBJECT (proxy->priv->object), (gpointer *) &proxy->priv->object);
3241   proxy->priv->object = object;
3242   if (proxy->priv->object != NULL)
3243     g_object_add_weak_pointer (G_OBJECT (proxy->priv->object), (gpointer *) &proxy->priv->object);
3244   G_UNLOCK (properties_lock);
3245 }
3246
3247 static void
3248 dbus_interface_iface_init (GDBusInterfaceIface *dbus_interface_iface)
3249 {
3250   dbus_interface_iface->get_info   = _g_dbus_proxy_get_info;
3251   dbus_interface_iface->get_object = _g_dbus_proxy_get_object;
3252   dbus_interface_iface->dup_object = _g_dbus_proxy_dup_object;
3253   dbus_interface_iface->set_object = _g_dbus_proxy_set_object;
3254 }
3255
3256 /* ---------------------------------------------------------------------------------------------------- */