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1 office 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, see <http://www.gnu.org/licenses/>.
17 *
18 * Author: David Zeuthen <davidz@redhat.com>
19 */
20  
21 #include "config.h"
22  
23 #include "gdbusobject.h"
24 #include "gdbusinterface.h"
25  
26 #include "glibintl.h"
27  
28 /**
29 * SECTION:gdbusinterface
30 * @short_description: Base type for D-Bus interfaces
31 * @include: gio/gio.h
32 *
33 * The #GDBusInterface type is the base type for D-Bus interfaces both
34 * on the service side (see #GDBusInterfaceSkeleton) and client side
35 * (see #GDBusProxy).
36 */
37  
38 typedef GDBusInterfaceIface GDBusInterfaceInterface;
39 G_DEFINE_INTERFACE (GDBusInterface, g_dbus_interface, G_TYPE_OBJECT)
40  
41 static void
42 g_dbus_interface_default_init (GDBusInterfaceIface *iface)
43 {
44 }
45  
46 /* ---------------------------------------------------------------------------------------------------- */
47  
48 /**
49 * g_dbus_interface_get_info:
50 * @interface_: An exported D-Bus interface.
51 *
52 * Gets D-Bus introspection information for the D-Bus interface
53 * implemented by @interface_.
54 *
55 * Returns: (transfer none): A #GDBusInterfaceInfo. Do not free.
56 *
57 * Since: 2.30
58 */
59 GDBusInterfaceInfo *
60 g_dbus_interface_get_info (GDBusInterface *interface_)
61 {
62 g_return_val_if_fail (G_IS_DBUS_INTERFACE (interface_), NULL);
63 return G_DBUS_INTERFACE_GET_IFACE (interface_)->get_info (interface_);
64 }
65  
66 /**
67 * g_dbus_interface_get_object: (skip)
68 * @interface_: An exported D-Bus interface
69 *
70 * Gets the #GDBusObject that @interface_ belongs to, if any.
71 *
72 * It is not safe to use the returned object if @interface_ or
73 * the returned object is being used from other threads. See
74 * g_dbus_interface_dup_object() for a thread-safe alternative.
75 *
76 * Returns: (transfer none): A #GDBusObject or %NULL. The returned
77 * reference belongs to @interface_ and should not be freed.
78 *
79 * Since: 2.30
80 */
81 GDBusObject *
82 g_dbus_interface_get_object (GDBusInterface *interface_)
83 {
84 g_return_val_if_fail (G_IS_DBUS_INTERFACE (interface_), NULL);
85 return G_DBUS_INTERFACE_GET_IFACE (interface_)->get_object (interface_);
86 }
87  
88 /**
89 * g_dbus_interface_dup_object: (rename-to g_dbus_interface_get_object)
90 * @interface_: An exported D-Bus interface.
91 *
92 * Gets the #GDBusObject that @interface_ belongs to, if any.
93 *
94 * Returns: (transfer full): A #GDBusObject or %NULL. The returned
95 * reference should be freed with g_object_unref().
96 *
97 * Since: 2.32
98 */
99 GDBusObject *
100 g_dbus_interface_dup_object (GDBusInterface *interface_)
101 {
102 GDBusObject *ret;
103 g_return_val_if_fail (G_IS_DBUS_INTERFACE (interface_), NULL);
104 if (G_LIKELY (G_DBUS_INTERFACE_GET_IFACE (interface_)->dup_object != NULL))
105 {
106 ret = G_DBUS_INTERFACE_GET_IFACE (interface_)->dup_object (interface_);
107 }
108 else
109 {
110 g_warning ("No dup_object() vfunc on type %s - using get_object() in a way that is not thread-safe.",
111 g_type_name_from_instance ((GTypeInstance *) interface_));
112 ret = G_DBUS_INTERFACE_GET_IFACE (interface_)->get_object (interface_);
113 if (ret != NULL)
114 g_object_ref (ret);
115 }
116 return ret;
117 }
118  
119 /**
120 * g_dbus_interface_set_object:
121 * @interface_: An exported D-Bus interface.
122 * @object: (allow-none): A #GDBusObject or %NULL.
123 *
124 * Sets the #GDBusObject for @interface_ to @object.
125 *
126 * Note that @interface_ will hold a weak reference to @object.
127 *
128 * Since: 2.30
129 */
130 void
131 g_dbus_interface_set_object (GDBusInterface *interface_,
132 GDBusObject *object)
133 {
134 g_return_if_fail (G_IS_DBUS_INTERFACE (interface_));
135 g_return_if_fail (object == NULL || G_IS_DBUS_OBJECT (object));
136 G_DBUS_INTERFACE_GET_IFACE (interface_)->set_object (interface_, object);
137 }