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bc40fe582d
This is needed for thread-safety ... yes, it would have been better to make get_object() return a full reference and have something like a peek_object() method return a borrowed reference for C convenience (only a single vfunc would have been needed). But such an ABI break is too late now... Signed-off-by: David Zeuthen <davidz@redhat.com>
143 lines
4.3 KiB
C
143 lines
4.3 KiB
C
/* GDBus - GLib D-Bus Library
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*
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* Copyright (C) 2008-2010 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* Author: David Zeuthen <davidz@redhat.com>
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*/
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#include "config.h"
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#include "gdbusobject.h"
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#include "gdbusinterface.h"
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#include "glibintl.h"
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/**
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* SECTION:gdbusinterface
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* @short_description: Base type for D-Bus interfaces
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* @include: gio/gio.h
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*
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* The #GDBusInterface type is the base type for D-Bus interfaces both
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* on the service side (see #GDBusInterfaceSkeleton) and client side
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* (see #GDBusProxy).
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*/
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typedef GDBusInterfaceIface GDBusInterfaceInterface;
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G_DEFINE_INTERFACE (GDBusInterface, g_dbus_interface, G_TYPE_OBJECT)
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static void
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g_dbus_interface_default_init (GDBusInterfaceIface *iface)
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{
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}
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/* ---------------------------------------------------------------------------------------------------- */
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/**
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* g_dbus_interface_get_info:
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* @interface_: An exported D-Bus interface.
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*
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* Gets D-Bus introspection information for the D-Bus interface
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* implemented by @interface_.
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*
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* Returns: (transfer none): A #GDBusInterfaceInfo. Do not free.
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*
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* Since: 2.30
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*/
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GDBusInterfaceInfo *
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g_dbus_interface_get_info (GDBusInterface *interface_)
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{
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g_return_val_if_fail (G_IS_DBUS_INTERFACE (interface_), NULL);
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return G_DBUS_INTERFACE_GET_IFACE (interface_)->get_info (interface_);
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}
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/**
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* g_dbus_interface_get_object: (skip)
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* @interface_: An exported D-Bus interface.
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*
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* Gets the #GDBusObject that @interface_ belongs to, if any.
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*
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* <warning>It is not safe to use the returned object if @interface_
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* or the returned object is being used from other threads. See
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* g_dbus_interface_dup_object() for a thread-safe
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* alternative.</warning>
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*
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* Returns: (transfer none): A #GDBusObject or %NULL. The returned
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* reference belongs to @interface_ and should not be freed.
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*
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* Since: 2.30
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*/
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GDBusObject *
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g_dbus_interface_get_object (GDBusInterface *interface_)
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{
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g_return_val_if_fail (G_IS_DBUS_INTERFACE (interface_), NULL);
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return G_DBUS_INTERFACE_GET_IFACE (interface_)->get_object (interface_);
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}
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/**
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* g_dbus_interface_dup_object:
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* @interface_: An exported D-Bus interface.
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*
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* Gets the #GDBusObject that @interface_ belongs to, if any.
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*
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* Returns: (transfer full): A #GDBusObject or %NULL. The returned
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* reference should be freed with g_object_unref().
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*
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* Since: 2.32
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*
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* Rename to: g_dbus_interface_get_object
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*/
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GDBusObject *
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g_dbus_interface_dup_object (GDBusInterface *interface_)
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{
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GDBusObject *ret;
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g_return_val_if_fail (G_IS_DBUS_INTERFACE (interface_), NULL);
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if (G_LIKELY (G_DBUS_INTERFACE_GET_IFACE (interface_)->dup_object != NULL))
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{
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ret = G_DBUS_INTERFACE_GET_IFACE (interface_)->dup_object (interface_);
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}
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else
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{
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g_warning ("No dup_object() vfunc on type %s - using get_object() in a way that is not thread-safe.",
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g_type_name_from_instance ((GTypeInstance *) interface_));
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ret = G_DBUS_INTERFACE_GET_IFACE (interface_)->get_object (interface_);
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if (ret != NULL)
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g_object_ref (ret);
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}
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return ret;
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}
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/**
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* g_dbus_interface_set_object:
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* @interface_: An exported D-Bus interface.
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* @object: A #GDBusObject or %NULL.
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*
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* Sets the #GDBusObject for @interface_ to @object.
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*
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* Note that @interface_ will hold a weak reference to @object.
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*
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* Since: 2.30
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*/
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void
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g_dbus_interface_set_object (GDBusInterface *interface_,
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GDBusObject *object)
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{
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g_return_if_fail (G_IS_DBUS_INTERFACE (interface_));
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g_return_if_fail (object == NULL || G_IS_DBUS_OBJECT (object));
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G_DBUS_INTERFACE_GET_IFACE (interface_)->set_object (interface_, object);
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}
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