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GDBus: Use Skeleton instead of Stub
After some brainstorming with Simon, see https://bugzilla.gnome.org/show_bug.cgi?id=647577#c8 Signed-off-by: David Zeuthen <davidz@redhat.com>
This commit is contained in:
David Zeuthen
717
gio/gdbusinterfaceskeleton.c
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717
gio/gdbusinterfaceskeleton.c
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@@ -0,0 +1,717 @@
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/* 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 "gdbusinterface.h"
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#include "gdbusinterfaceskeleton.h"
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#include "gdbusobjectskeleton.h"
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#include "gio-marshal.h"
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#include "gioenumtypes.h"
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#include "gdbusprivate.h"
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#include "gdbusmethodinvocation.h"
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#include "gdbusconnection.h"
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#include "gioscheduler.h"
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#include "gioerror.h"
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#include "glibintl.h"
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/**
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* SECTION:gdbusinterfaceskeleton
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* @short_description: Service-side D-Bus interface
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* @include: gio/gio.h
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*
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* Abstract base class for D-Bus interfaces on the service side.
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*/
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struct _GDBusInterfaceSkeletonPrivate
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{
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GDBusObject *object;
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GDBusInterfaceSkeletonFlags flags;
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guint registration_id;
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GDBusConnection *connection;
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gchar *object_path;
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GDBusInterfaceVTable *hooked_vtable;
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};
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enum
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{
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G_AUTHORIZE_METHOD_SIGNAL,
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LAST_SIGNAL
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};
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enum
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{
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PROP_0,
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PROP_G_FLAGS
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};
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static guint signals[LAST_SIGNAL] = {0};
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static void dbus_interface_interface_init (GDBusInterfaceIface *iface);
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G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GDBusInterfaceSkeleton, g_dbus_interface_skeleton, G_TYPE_OBJECT,
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G_IMPLEMENT_INTERFACE (G_TYPE_DBUS_INTERFACE, dbus_interface_interface_init));
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static void
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g_dbus_interface_skeleton_finalize (GObject *object)
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{
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GDBusInterfaceSkeleton *interface = G_DBUS_INTERFACE_SKELETON (object);
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/* unexport if already exported */
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if (interface->priv->registration_id > 0)
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g_dbus_interface_skeleton_unexport (interface);
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g_assert (interface->priv->connection == NULL);
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g_assert (interface->priv->object_path == NULL);
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g_assert (interface->priv->hooked_vtable == NULL);
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if (interface->priv->object != NULL)
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g_object_remove_weak_pointer (G_OBJECT (interface->priv->object), (gpointer *) &interface->priv->object);
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G_OBJECT_CLASS (g_dbus_interface_skeleton_parent_class)->finalize (object);
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}
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static void
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g_dbus_interface_skeleton_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec)
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{
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GDBusInterfaceSkeleton *interface = G_DBUS_INTERFACE_SKELETON (object);
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switch (prop_id)
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{
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case PROP_G_FLAGS:
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g_value_set_flags (value, g_dbus_interface_skeleton_get_flags (interface));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static void
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g_dbus_interface_skeleton_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec)
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{
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GDBusInterfaceSkeleton *interface = G_DBUS_INTERFACE_SKELETON (object);
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switch (prop_id)
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{
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case PROP_G_FLAGS:
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g_dbus_interface_skeleton_set_flags (interface, g_value_get_flags (value));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
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break;
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}
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}
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static gboolean
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g_dbus_interface_skeleton_g_authorize_method_default (GDBusInterfaceSkeleton *interface,
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GDBusMethodInvocation *invocation)
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{
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return TRUE;
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}
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static void
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g_dbus_interface_skeleton_class_init (GDBusInterfaceSkeletonClass *klass)
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{
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GObjectClass *gobject_class;
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gobject_class = G_OBJECT_CLASS (klass);
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gobject_class->finalize = g_dbus_interface_skeleton_finalize;
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gobject_class->set_property = g_dbus_interface_skeleton_set_property;
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gobject_class->get_property = g_dbus_interface_skeleton_get_property;
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klass->g_authorize_method = g_dbus_interface_skeleton_g_authorize_method_default;
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/**
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* GDBusInterfaceSkeleton:g-flags:
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*
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* Flags from the #GDBusInterfaceSkeletonFlags enumeration.
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*
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* Since: 2.30
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*/
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g_object_class_install_property (gobject_class,
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PROP_G_FLAGS,
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g_param_spec_flags ("g-flags",
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"g-flags",
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"Flags for the interface skeleton",
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G_TYPE_DBUS_INTERFACE_SKELETON_FLAGS,
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G_DBUS_INTERFACE_SKELETON_FLAGS_NONE,
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G_PARAM_READABLE |
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G_PARAM_WRITABLE |
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G_PARAM_STATIC_STRINGS));
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/**
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* GDBusInterfaceSkeleton::g-authorize-method:
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* @interface: The #GDBusInterfaceSkeleton emitting the signal.
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* @invocation: A #GDBusMethodInvocation.
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*
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* Emitted when a method is invoked by a remote caller and used to
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* determine if the method call is authorized.
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*
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* Note that this signal is emitted in a thread dedicated to
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* handling the method call so handlers are allowed to perform
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* blocking IO. This means that it is appropriate to call
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* e.g. <ulink
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* url="http://hal.freedesktop.org/docs/polkit/PolkitAuthority.html#polkit-authority-check-authorization-sync">polkit_authority_check_authorization_sync()</ulink>
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* with the <ulink
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* url="http://hal.freedesktop.org/docs/polkit/PolkitAuthority.html#POLKIT-CHECK-AUTHORIZATION-FLAGS-ALLOW-USER-INTERACTION:CAPS">POLKIT_CHECK_AUTHORIZATION_FLAGS_ALLOW_USER_INTERACTION</ulink> flag set.
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*
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* If %FALSE is returned then no further handlers are run and the
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* signal handler must take ownership of @invocation and finish
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* handling the call (e.g. return an error via
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* g_dbus_method_invocation_return_error()).
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*
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* Otherwise, if %TRUE is returned, signal emission continues. If no
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* handlers return %FALSE, then the method is dispatched. If
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* @interface has an enclosing #GDBusObjectSkeleton, then the
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* #GDBusObjectSkeleton::authorize-method signal handlers run before
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* the handlers for this signal.
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*
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* The default class handler just returns %TRUE.
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*
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* Please note that the common case is optimized: if no signals
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* handlers are connected and the default class handler isn't
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* overridden (for both @interface and the enclosing
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* #GDBusObjectSkeleton, if any) and #GDBusInterfaceSkeleton:g-flags does
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* not have the
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* %G_DBUS_INTERFACE_SKELETON_FLAGS_HANDLE_METHOD_INVOCATIONS_IN_THREAD
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* flags set, no dedicated thread is ever used and the call will be
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* handled in the same thread as the object that @interface belongs
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* to was exported in.
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*
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* Returns: %TRUE if the call is authorized, %FALSE otherwise.
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*
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* Since: 2.30
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*/
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signals[G_AUTHORIZE_METHOD_SIGNAL] =
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g_signal_new ("g-authorize-method",
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G_TYPE_DBUS_INTERFACE_SKELETON,
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GDBusInterfaceSkeletonClass, g_authorize_method),
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_g_signal_accumulator_false_handled,
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NULL,
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_gio_marshal_BOOLEAN__OBJECT,
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G_TYPE_BOOLEAN,
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1,
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G_TYPE_DBUS_METHOD_INVOCATION);
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g_type_class_add_private (klass, sizeof (GDBusInterfaceSkeletonPrivate));
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}
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static void
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g_dbus_interface_skeleton_init (GDBusInterfaceSkeleton *interface)
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{
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interface->priv = G_TYPE_INSTANCE_GET_PRIVATE (interface, G_TYPE_DBUS_INTERFACE_SKELETON, GDBusInterfaceSkeletonPrivate);
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}
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/* ---------------------------------------------------------------------------------------------------- */
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/**
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* g_dbus_interface_skeleton_get_flags:
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* @interface_: A #GDBusInterfaceSkeleton.
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*
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* Gets the #GDBusInterfaceSkeletonFlags that describes what the behavior
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* of @interface_
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*
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* Returns: One or more flags from the #GDBusInterfaceSkeletonFlags enumeration.
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*
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* Since: 2.30
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*/
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GDBusInterfaceSkeletonFlags
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g_dbus_interface_skeleton_get_flags (GDBusInterfaceSkeleton *interface_)
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{
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g_return_val_if_fail (G_IS_DBUS_INTERFACE_SKELETON (interface_), G_DBUS_INTERFACE_SKELETON_FLAGS_NONE);
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return interface_->priv->flags;
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}
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/**
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* g_dbus_interface_skeleton_set_flags:
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* @interface_: A #GDBusInterfaceSkeleton.
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* @flags: Flags from the #GDBusInterfaceSkeletonFlags enumeration.
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*
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* Sets flags describing what the behavior of @skeleton should be.
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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_skeleton_set_flags (GDBusInterfaceSkeleton *interface_,
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GDBusInterfaceSkeletonFlags flags)
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{
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g_return_if_fail (G_IS_DBUS_INTERFACE_SKELETON (interface_));
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if (interface_->priv->flags != flags)
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{
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interface_->priv->flags = flags;
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g_object_notify (G_OBJECT (interface_), "g-flags");
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}
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}
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/**
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* g_dbus_interface_skeleton_get_info:
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* @interface_: A #GDBusInterfaceSkeleton.
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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 (never %NULL). 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_skeleton_get_info (GDBusInterfaceSkeleton *interface_)
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{
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GDBusInterfaceInfo *ret;
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g_return_val_if_fail (G_IS_DBUS_INTERFACE_SKELETON (interface_), NULL);
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ret = G_DBUS_INTERFACE_SKELETON_GET_CLASS (interface_)->get_info (interface_);
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g_warn_if_fail (ret != NULL);
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return ret;
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}
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/**
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* g_dbus_interface_skeleton_get_vtable:
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* @interface_: A #GDBusInterfaceSkeleton.
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*
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* Gets the interface vtable for the D-Bus interface implemented by
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* @interface_. The returned function pointers should expect @interface_
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* itself to be passed as @user_data.
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*
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* Returns: A #GDBusInterfaceVTable (never %NULL).
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*
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* Since: 2.30
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*/
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GDBusInterfaceVTable *
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g_dbus_interface_skeleton_get_vtable (GDBusInterfaceSkeleton *interface_)
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{
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GDBusInterfaceVTable *ret;
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g_return_val_if_fail (G_IS_DBUS_INTERFACE_SKELETON (interface_), NULL);
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ret = G_DBUS_INTERFACE_SKELETON_GET_CLASS (interface_)->get_vtable (interface_);
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g_warn_if_fail (ret != NULL);
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return ret;
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}
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/**
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* g_dbus_interface_skeleton_get_properties:
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* @interface_: A #GDBusInterfaceSkeleton.
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*
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* Gets all D-Bus properties for @interface_.
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*
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* Returns: A new, floating, #GVariant of type <link linkend="G-VARIANT-TYPE-VARDICT:CAPS">'a{sv}'</link>. Free with g_variant_unref().
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*
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* Since: 2.30
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*/
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GVariant *
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g_dbus_interface_skeleton_get_properties (GDBusInterfaceSkeleton *interface_)
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{
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GVariant *ret;
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g_return_val_if_fail (G_IS_DBUS_INTERFACE_SKELETON (interface_), NULL);
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ret = G_DBUS_INTERFACE_SKELETON_GET_CLASS (interface_)->get_properties (interface_);
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g_warn_if_fail (g_variant_is_floating (ret));
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return ret;
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}
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/**
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* g_dbus_interface_skeleton_flush:
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* @interface_: A #GDBusInterfaceSkeleton.
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*
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* If @interface_ has outstanding changes, request for these changes to be
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* emitted immediately.
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*
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* For example, an exported D-Bus interface may queue up property
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* changes and emit the
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* <literal>org.freedesktop.DBus.Properties::PropertiesChanged</literal>
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* signal later (e.g. in an idle handler). This technique is useful
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* for collapsing multiple property changes into one.
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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_skeleton_flush (GDBusInterfaceSkeleton *interface_)
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{
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g_return_if_fail (G_IS_DBUS_INTERFACE_SKELETON (interface_));
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G_DBUS_INTERFACE_SKELETON_GET_CLASS (interface_)->flush (interface_);
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}
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/* ---------------------------------------------------------------------------------------------------- */
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static GDBusInterfaceInfo *
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_g_dbus_interface_skeleton_get_info (GDBusInterface *interface_)
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{
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GDBusInterfaceSkeleton *interface = G_DBUS_INTERFACE_SKELETON (interface_);
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return g_dbus_interface_skeleton_get_info (interface);
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}
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static GDBusObject *
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g_dbus_interface_skeleton_get_object (GDBusInterface *interface_)
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{
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GDBusInterfaceSkeleton *interface = G_DBUS_INTERFACE_SKELETON (interface_);
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return interface->priv->object;
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}
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static void
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g_dbus_interface_skeleton_set_object (GDBusInterface *interface_,
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GDBusObject *object)
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{
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GDBusInterfaceSkeleton *interface = G_DBUS_INTERFACE_SKELETON (interface_);
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if (interface->priv->object != NULL)
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g_object_remove_weak_pointer (G_OBJECT (interface->priv->object), (gpointer *) &interface->priv->object);
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interface->priv->object = object;
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if (object != NULL)
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g_object_add_weak_pointer (G_OBJECT (interface->priv->object), (gpointer *) &interface->priv->object);
|
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}
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static void
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dbus_interface_interface_init (GDBusInterfaceIface *iface)
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{
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iface->get_info = _g_dbus_interface_skeleton_get_info;
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iface->get_object = g_dbus_interface_skeleton_get_object;
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iface->set_object = g_dbus_interface_skeleton_set_object;
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}
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||||
/* ---------------------------------------------------------------------------------------------------- */
|
||||
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typedef struct
|
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{
|
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volatile gint ref_count;
|
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GDBusInterfaceSkeleton *interface;
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GDBusInterfaceMethodCallFunc method_call_func;
|
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GDBusMethodInvocation *invocation;
|
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GMainContext *context;
|
||||
} DispatchData;
|
||||
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||||
static void
|
||||
dispatch_data_unref (DispatchData *data)
|
||||
{
|
||||
if (g_atomic_int_dec_and_test (&data->ref_count))
|
||||
{
|
||||
if (data->context != NULL)
|
||||
g_main_context_unref (data->context);
|
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g_free (data);
|
||||
}
|
||||
}
|
||||
|
||||
static DispatchData *
|
||||
dispatch_data_ref (DispatchData *data)
|
||||
{
|
||||
g_atomic_int_inc (&data->ref_count);
|
||||
return data;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
dispatch_invoke_in_context_func (gpointer user_data)
|
||||
{
|
||||
DispatchData *data = user_data;
|
||||
data->method_call_func (g_dbus_method_invocation_get_connection (data->invocation),
|
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g_dbus_method_invocation_get_sender (data->invocation),
|
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g_dbus_method_invocation_get_object_path (data->invocation),
|
||||
g_dbus_method_invocation_get_interface_name (data->invocation),
|
||||
g_dbus_method_invocation_get_method_name (data->invocation),
|
||||
g_dbus_method_invocation_get_parameters (data->invocation),
|
||||
data->invocation,
|
||||
g_dbus_method_invocation_get_user_data (data->invocation));
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
static gboolean
|
||||
dispatch_in_thread_func (GIOSchedulerJob *job,
|
||||
GCancellable *cancellable,
|
||||
gpointer user_data)
|
||||
{
|
||||
DispatchData *data = user_data;
|
||||
gboolean authorized;
|
||||
|
||||
/* first check on the enclosing object (if any), then the interface */
|
||||
authorized = TRUE;
|
||||
if (data->interface->priv->object != NULL)
|
||||
{
|
||||
g_signal_emit_by_name (data->interface->priv->object,
|
||||
"authorize-method",
|
||||
data->interface,
|
||||
data->invocation,
|
||||
&authorized);
|
||||
}
|
||||
if (authorized)
|
||||
{
|
||||
g_signal_emit (data->interface,
|
||||
signals[G_AUTHORIZE_METHOD_SIGNAL],
|
||||
0,
|
||||
data->invocation,
|
||||
&authorized);
|
||||
}
|
||||
|
||||
if (authorized)
|
||||
{
|
||||
gboolean run_in_thread;
|
||||
run_in_thread = (data->interface->priv->flags & G_DBUS_INTERFACE_SKELETON_FLAGS_HANDLE_METHOD_INVOCATIONS_IN_THREAD);
|
||||
if (run_in_thread)
|
||||
{
|
||||
/* might as well just re-use the existing thread */
|
||||
data->method_call_func (g_dbus_method_invocation_get_connection (data->invocation),
|
||||
g_dbus_method_invocation_get_sender (data->invocation),
|
||||
g_dbus_method_invocation_get_object_path (data->invocation),
|
||||
g_dbus_method_invocation_get_interface_name (data->invocation),
|
||||
g_dbus_method_invocation_get_method_name (data->invocation),
|
||||
g_dbus_method_invocation_get_parameters (data->invocation),
|
||||
data->invocation,
|
||||
g_dbus_method_invocation_get_user_data (data->invocation));
|
||||
}
|
||||
else
|
||||
{
|
||||
/* bah, back to original context */
|
||||
g_main_context_invoke_full (data->context,
|
||||
G_PRIORITY_DEFAULT,
|
||||
dispatch_invoke_in_context_func,
|
||||
dispatch_data_ref (data),
|
||||
(GDestroyNotify) dispatch_data_unref);
|
||||
}
|
||||
}
|
||||
else
|
||||
{
|
||||
/* do nothing */
|
||||
}
|
||||
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
static void
|
||||
g_dbus_interface_method_dispatch_helper (GDBusInterfaceSkeleton *interface,
|
||||
GDBusInterfaceMethodCallFunc method_call_func,
|
||||
GDBusMethodInvocation *invocation)
|
||||
{
|
||||
gboolean has_handlers;
|
||||
gboolean has_default_class_handler;
|
||||
gboolean emit_authorized_signal;
|
||||
gboolean run_in_thread;
|
||||
|
||||
g_return_if_fail (G_IS_DBUS_INTERFACE_SKELETON (interface));
|
||||
g_return_if_fail (method_call_func != NULL);
|
||||
g_return_if_fail (G_IS_DBUS_METHOD_INVOCATION (invocation));
|
||||
|
||||
/* optimization for the common case where
|
||||
*
|
||||
* a) no handler is connected and class handler is not overridden (both interface and object); and
|
||||
* b) method calls are not dispatched in a thread
|
||||
*/
|
||||
has_handlers = g_signal_has_handler_pending (interface,
|
||||
signals[G_AUTHORIZE_METHOD_SIGNAL],
|
||||
0,
|
||||
TRUE);
|
||||
has_default_class_handler = (G_DBUS_INTERFACE_SKELETON_GET_CLASS (interface)->g_authorize_method ==
|
||||
g_dbus_interface_skeleton_g_authorize_method_default);
|
||||
|
||||
emit_authorized_signal = (has_handlers || !has_default_class_handler);
|
||||
if (!emit_authorized_signal)
|
||||
{
|
||||
if (interface->priv->object != NULL)
|
||||
emit_authorized_signal = _g_dbus_object_skeleton_has_authorize_method_handlers (G_DBUS_OBJECT_SKELETON (interface->priv->object));
|
||||
}
|
||||
|
||||
run_in_thread = (interface->priv->flags & G_DBUS_INTERFACE_SKELETON_FLAGS_HANDLE_METHOD_INVOCATIONS_IN_THREAD);
|
||||
if (!emit_authorized_signal && !run_in_thread)
|
||||
{
|
||||
method_call_func (g_dbus_method_invocation_get_connection (invocation),
|
||||
g_dbus_method_invocation_get_sender (invocation),
|
||||
g_dbus_method_invocation_get_object_path (invocation),
|
||||
g_dbus_method_invocation_get_interface_name (invocation),
|
||||
g_dbus_method_invocation_get_method_name (invocation),
|
||||
g_dbus_method_invocation_get_parameters (invocation),
|
||||
invocation,
|
||||
g_dbus_method_invocation_get_user_data (invocation));
|
||||
}
|
||||
else
|
||||
{
|
||||
DispatchData *data;
|
||||
data = g_new0 (DispatchData, 1);
|
||||
data->interface = interface;
|
||||
data->method_call_func = method_call_func;
|
||||
data->invocation = invocation;
|
||||
data->context = g_main_context_get_thread_default ();
|
||||
data->ref_count = 1;
|
||||
if (data->context != NULL)
|
||||
g_main_context_ref (data->context);
|
||||
g_io_scheduler_push_job (dispatch_in_thread_func,
|
||||
data,
|
||||
(GDestroyNotify) dispatch_data_unref,
|
||||
G_PRIORITY_DEFAULT,
|
||||
NULL); /* GCancellable* */
|
||||
}
|
||||
}
|
||||
|
||||
static void
|
||||
skeleton_intercept_handle_method_call (GDBusConnection *connection,
|
||||
const gchar *sender,
|
||||
const gchar *object_path,
|
||||
const gchar *interface_name,
|
||||
const gchar *method_name,
|
||||
GVariant *parameters,
|
||||
GDBusMethodInvocation *invocation,
|
||||
gpointer user_data)
|
||||
{
|
||||
GDBusInterfaceSkeleton *interface = G_DBUS_INTERFACE_SKELETON (user_data);
|
||||
g_dbus_interface_method_dispatch_helper (interface,
|
||||
g_dbus_interface_skeleton_get_vtable (interface)->method_call,
|
||||
invocation);
|
||||
}
|
||||
|
||||
/* ---------------------------------------------------------------------------------------------------- */
|
||||
|
||||
/**
|
||||
* g_dbus_interface_skeleton_get_connection:
|
||||
* @interface_: A #GDBusInterfaceSkeleton.
|
||||
*
|
||||
* Gets the connection that @interface_ is exported on, if any.
|
||||
*
|
||||
* Returns: (transfer none): A #GDBusConnection or %NULL if @interface_ is
|
||||
* not exported anywhere. Do not free, the object belongs to @interface_.
|
||||
*
|
||||
* Since: 2.30
|
||||
*/
|
||||
GDBusConnection *
|
||||
g_dbus_interface_skeleton_get_connection (GDBusInterfaceSkeleton *interface_)
|
||||
{
|
||||
g_return_val_if_fail (G_IS_DBUS_INTERFACE_SKELETON (interface_), NULL);
|
||||
return interface_->priv->connection;
|
||||
}
|
||||
|
||||
/**
|
||||
* g_dbus_interface_skeleton_get_object_path:
|
||||
* @interface_: A #GDBusInterfaceSkeleton.
|
||||
*
|
||||
* Gets the object path that @interface_ is exported on, if any.
|
||||
*
|
||||
* Returns: A string owned by @interface_ or %NULL if @interface_ is not exported
|
||||
* anywhere. Do not free, the string belongs to @interface_.
|
||||
*
|
||||
* Since: 2.30
|
||||
*/
|
||||
const gchar *
|
||||
g_dbus_interface_skeleton_get_object_path (GDBusInterfaceSkeleton *interface_)
|
||||
{
|
||||
g_return_val_if_fail (G_IS_DBUS_INTERFACE_SKELETON (interface_), NULL);
|
||||
return interface_->priv->object_path;
|
||||
}
|
||||
|
||||
/**
|
||||
* g_dbus_interface_skeleton_export:
|
||||
* @interface_: The D-Bus interface to export.
|
||||
* @connection: A #GDBusConnection to export @interface_ on.
|
||||
* @object_path: The path to export the interface at.
|
||||
* @error: Return location for error or %NULL.
|
||||
*
|
||||
* Exports @interface_ at @object_path on @connection.
|
||||
*
|
||||
* Use g_dbus_interface_skeleton_unexport() to unexport the object.
|
||||
*
|
||||
* Returns: %TRUE if the interface was exported, other %FALSE with
|
||||
* @error set.
|
||||
*
|
||||
* Since: 2.30
|
||||
*/
|
||||
gboolean
|
||||
g_dbus_interface_skeleton_export (GDBusInterfaceSkeleton *interface_,
|
||||
GDBusConnection *connection,
|
||||
const gchar *object_path,
|
||||
GError **error)
|
||||
{
|
||||
gboolean ret;
|
||||
|
||||
g_return_val_if_fail (G_IS_DBUS_INTERFACE_SKELETON (interface_), 0);
|
||||
g_return_val_if_fail (G_IS_DBUS_CONNECTION (connection), 0);
|
||||
g_return_val_if_fail (g_variant_is_object_path (object_path), 0);
|
||||
g_return_val_if_fail (error == NULL || *error == NULL, 0);
|
||||
|
||||
ret = FALSE;
|
||||
if (interface_->priv->registration_id > 0)
|
||||
{
|
||||
g_set_error_literal (error,
|
||||
G_IO_ERROR,
|
||||
G_IO_ERROR_FAILED, /* TODO: new error code */
|
||||
"The object is already exported");
|
||||
goto out;
|
||||
}
|
||||
|
||||
g_assert (interface_->priv->connection == NULL);
|
||||
g_assert (interface_->priv->object_path == NULL);
|
||||
g_assert (interface_->priv->hooked_vtable == NULL);
|
||||
|
||||
/* Hook the vtable since we need to intercept method calls for
|
||||
* ::g-authorize-method and for dispatching in thread vs
|
||||
* context
|
||||
*/
|
||||
interface_->priv->hooked_vtable = g_memdup (g_dbus_interface_skeleton_get_vtable (interface_), sizeof (GDBusInterfaceVTable));
|
||||
interface_->priv->hooked_vtable->method_call = skeleton_intercept_handle_method_call;
|
||||
|
||||
interface_->priv->connection = g_object_ref (connection);
|
||||
interface_->priv->object_path = g_strdup (object_path);
|
||||
interface_->priv->registration_id = g_dbus_connection_register_object (connection,
|
||||
object_path,
|
||||
g_dbus_interface_skeleton_get_info (interface_),
|
||||
interface_->priv->hooked_vtable,
|
||||
interface_,
|
||||
NULL, /* user_data_free_func */
|
||||
error);
|
||||
if (interface_->priv->registration_id == 0)
|
||||
goto out;
|
||||
|
||||
ret = TRUE;
|
||||
|
||||
out:
|
||||
return ret;
|
||||
}
|
||||
|
||||
/**
|
||||
* g_dbus_interface_skeleton_unexport:
|
||||
* @interface_: A #GDBusInterfaceSkeleton.
|
||||
*
|
||||
* Stops exporting an interface previously exported with
|
||||
* g_dbus_interface_skeleton_export().
|
||||
*
|
||||
* Since: 2.30
|
||||
*/
|
||||
void
|
||||
g_dbus_interface_skeleton_unexport (GDBusInterfaceSkeleton *interface_)
|
||||
{
|
||||
g_return_if_fail (G_IS_DBUS_INTERFACE_SKELETON (interface_));
|
||||
g_return_if_fail (interface_->priv->registration_id > 0);
|
||||
|
||||
g_assert (interface_->priv->connection != NULL);
|
||||
g_assert (interface_->priv->object_path != NULL);
|
||||
g_assert (interface_->priv->hooked_vtable != NULL);
|
||||
|
||||
g_warn_if_fail (g_dbus_connection_unregister_object (interface_->priv->connection,
|
||||
interface_->priv->registration_id));
|
||||
|
||||
g_object_unref (interface_->priv->connection);
|
||||
g_free (interface_->priv->object_path);
|
||||
interface_->priv->connection = NULL;
|
||||
interface_->priv->object_path = NULL;
|
||||
interface_->priv->hooked_vtable = NULL;
|
||||
interface_->priv->registration_id = 0;
|
||||
}
|
||||
|
||||
/* ---------------------------------------------------------------------------------------------------- */
|
||||
Reference in New Issue
Block a user