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glib/gio/gdbusinterfaceskeleton.c
David Zeuthen ea742e88e3 GDBus: Add some gobject-introspection annotations for new code 
Signed-off-by: David Zeuthen <davidz@redhat.com>
2011-04-16 14:42:21 -04:00

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/* GDBus - GLib D-Bus Library
*
* Copyright (C) 2008-2010 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author: David Zeuthen <davidz@redhat.com>
*/
#include "config.h"
#include "gdbusinterface.h"
#include "gdbusinterfaceskeleton.h"
#include "gdbusobjectskeleton.h"
#include "gio-marshal.h"
#include "gioenumtypes.h"
#include "gdbusprivate.h"
#include "gdbusmethodinvocation.h"
#include "gdbusconnection.h"
#include "gioscheduler.h"
#include "gioerror.h"
#include "glibintl.h"
/**
* SECTION:gdbusinterfaceskeleton
* @short_description: Service-side D-Bus interface
* @include: gio/gio.h
*
* Abstract base class for D-Bus interfaces on the service side.
*/
struct _GDBusInterfaceSkeletonPrivate
{
GDBusObject *object;
GDBusInterfaceSkeletonFlags flags;
guint registration_id;
GDBusConnection *connection;
gchar *object_path;
GDBusInterfaceVTable *hooked_vtable;
};
enum
{
G_AUTHORIZE_METHOD_SIGNAL,
LAST_SIGNAL
};
enum
{
PROP_0,
PROP_G_FLAGS
};
static guint signals[LAST_SIGNAL] = {0};
static void dbus_interface_interface_init (GDBusInterfaceIface *iface);
G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GDBusInterfaceSkeleton, g_dbus_interface_skeleton, G_TYPE_OBJECT,
G_IMPLEMENT_INTERFACE (G_TYPE_DBUS_INTERFACE, dbus_interface_interface_init));
static void
g_dbus_interface_skeleton_finalize (GObject *object)
{
GDBusInterfaceSkeleton *interface = G_DBUS_INTERFACE_SKELETON (object);
/* unexport if already exported */
if (interface->priv->registration_id > 0)
g_dbus_interface_skeleton_unexport (interface);
g_assert (interface->priv->connection == NULL);
g_assert (interface->priv->object_path == NULL);
g_assert (interface->priv->hooked_vtable == NULL);
if (interface->priv->object != NULL)
g_object_remove_weak_pointer (G_OBJECT (interface->priv->object), (gpointer *) &interface->priv->object);
G_OBJECT_CLASS (g_dbus_interface_skeleton_parent_class)->finalize (object);
}
static void
g_dbus_interface_skeleton_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GDBusInterfaceSkeleton *interface = G_DBUS_INTERFACE_SKELETON (object);
switch (prop_id)
{
case PROP_G_FLAGS:
g_value_set_flags (value, g_dbus_interface_skeleton_get_flags (interface));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
g_dbus_interface_skeleton_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GDBusInterfaceSkeleton *interface = G_DBUS_INTERFACE_SKELETON (object);
switch (prop_id)
{
case PROP_G_FLAGS:
g_dbus_interface_skeleton_set_flags (interface, g_value_get_flags (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static gboolean
g_dbus_interface_skeleton_g_authorize_method_default (GDBusInterfaceSkeleton *interface,
GDBusMethodInvocation *invocation)
{
return TRUE;
}
static void
g_dbus_interface_skeleton_class_init (GDBusInterfaceSkeletonClass *klass)
{
GObjectClass *gobject_class;
gobject_class = G_OBJECT_CLASS (klass);
gobject_class->finalize = g_dbus_interface_skeleton_finalize;
gobject_class->set_property = g_dbus_interface_skeleton_set_property;
gobject_class->get_property = g_dbus_interface_skeleton_get_property;
klass->g_authorize_method = g_dbus_interface_skeleton_g_authorize_method_default;
/**
* GDBusInterfaceSkeleton:g-flags:
*
* Flags from the #GDBusInterfaceSkeletonFlags enumeration.
*
* Since: 2.30
*/
g_object_class_install_property (gobject_class,
PROP_G_FLAGS,
g_param_spec_flags ("g-flags",
"g-flags",
"Flags for the interface skeleton",
G_TYPE_DBUS_INTERFACE_SKELETON_FLAGS,
G_DBUS_INTERFACE_SKELETON_FLAGS_NONE,
G_PARAM_READABLE |
G_PARAM_WRITABLE |
G_PARAM_STATIC_STRINGS));
/**
* GDBusInterfaceSkeleton::g-authorize-method:
* @interface: The #GDBusInterfaceSkeleton emitting the signal.
* @invocation: A #GDBusMethodInvocation.
*
* Emitted when a method is invoked by a remote caller and used to
* determine if the method call is authorized.
*
* Note that this signal is emitted in a thread dedicated to
* handling the method call so handlers are allowed to perform
* blocking IO. This means that it is appropriate to call
* e.g. <ulink
* url="http://hal.freedesktop.org/docs/polkit/PolkitAuthority.html#polkit-authority-check-authorization-sync">polkit_authority_check_authorization_sync()</ulink>
* with the <ulink
* 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.
*
* If %FALSE is returned then no further handlers are run and the
* signal handler must take a reference to @invocation and finish
* handling the call (e.g. return an error via
* g_dbus_method_invocation_return_error()).
*
* Otherwise, if %TRUE is returned, signal emission continues. If no
* handlers return %FALSE, then the method is dispatched. If
* @interface has an enclosing #GDBusObjectSkeleton, then the
* #GDBusObjectSkeleton::authorize-method signal handlers run before
* the handlers for this signal.
*
* The default class handler just returns %TRUE.
*
* Please note that the common case is optimized: if no signals
* handlers are connected and the default class handler isn't
* overridden (for both @interface and the enclosing
* #GDBusObjectSkeleton, if any) and #GDBusInterfaceSkeleton:g-flags does
* not have the
* %G_DBUS_INTERFACE_SKELETON_FLAGS_HANDLE_METHOD_INVOCATIONS_IN_THREAD
* flags set, no dedicated thread is ever used and the call will be
* handled in the same thread as the object that @interface belongs
* to was exported in.
*
* Returns: %TRUE if the call is authorized, %FALSE otherwise.
*
* Since: 2.30
*/
signals[G_AUTHORIZE_METHOD_SIGNAL] =
g_signal_new ("g-authorize-method",
G_TYPE_DBUS_INTERFACE_SKELETON,
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GDBusInterfaceSkeletonClass, g_authorize_method),
_g_signal_accumulator_false_handled,
NULL,
_gio_marshal_BOOLEAN__OBJECT,
G_TYPE_BOOLEAN,
1,
G_TYPE_DBUS_METHOD_INVOCATION);
g_type_class_add_private (klass, sizeof (GDBusInterfaceSkeletonPrivate));
}
static void
g_dbus_interface_skeleton_init (GDBusInterfaceSkeleton *interface)
{
interface->priv = G_TYPE_INSTANCE_GET_PRIVATE (interface, G_TYPE_DBUS_INTERFACE_SKELETON, GDBusInterfaceSkeletonPrivate);
}
/* ---------------------------------------------------------------------------------------------------- */
/**
* g_dbus_interface_skeleton_get_flags:
* @interface_: A #GDBusInterfaceSkeleton.
*
* Gets the #GDBusInterfaceSkeletonFlags that describes what the behavior
* of @interface_
*
* Returns: One or more flags from the #GDBusInterfaceSkeletonFlags enumeration.
*
* Since: 2.30
*/
GDBusInterfaceSkeletonFlags
g_dbus_interface_skeleton_get_flags (GDBusInterfaceSkeleton *interface_)
{
g_return_val_if_fail (G_IS_DBUS_INTERFACE_SKELETON (interface_), G_DBUS_INTERFACE_SKELETON_FLAGS_NONE);
return interface_->priv->flags;
}
/**
* g_dbus_interface_skeleton_set_flags:
* @interface_: A #GDBusInterfaceSkeleton.
* @flags: Flags from the #GDBusInterfaceSkeletonFlags enumeration.
*
* Sets flags describing what the behavior of @skeleton should be.
*
* Since: 2.30
*/
void
g_dbus_interface_skeleton_set_flags (GDBusInterfaceSkeleton *interface_,
GDBusInterfaceSkeletonFlags flags)
{
g_return_if_fail (G_IS_DBUS_INTERFACE_SKELETON (interface_));
if (interface_->priv->flags != flags)
{
interface_->priv->flags = flags;
g_object_notify (G_OBJECT (interface_), "g-flags");
}
}
/**
* g_dbus_interface_skeleton_get_info:
* @interface_: A #GDBusInterfaceSkeleton.
*
* Gets D-Bus introspection information for the D-Bus interface
* implemented by @interface_.
*
* Returns: (transfer none): A #GDBusInterfaceInfo (never %NULL). Do not free.
*
* Since: 2.30
*/
GDBusInterfaceInfo *
g_dbus_interface_skeleton_get_info (GDBusInterfaceSkeleton *interface_)
{
GDBusInterfaceInfo *ret;
g_return_val_if_fail (G_IS_DBUS_INTERFACE_SKELETON (interface_), NULL);
ret = G_DBUS_INTERFACE_SKELETON_GET_CLASS (interface_)->get_info (interface_);
g_warn_if_fail (ret != NULL);
return ret;
}
/**
* g_dbus_interface_skeleton_get_vtable: (skip)
* @interface_: A #GDBusInterfaceSkeleton.
*
* Gets the interface vtable for the D-Bus interface implemented by
* @interface_. The returned function pointers should expect @interface_
* itself to be passed as @user_data.
*
* Returns: A #GDBusInterfaceVTable (never %NULL).
*
* Since: 2.30
*/
GDBusInterfaceVTable *
g_dbus_interface_skeleton_get_vtable (GDBusInterfaceSkeleton *interface_)
{
GDBusInterfaceVTable *ret;
g_return_val_if_fail (G_IS_DBUS_INTERFACE_SKELETON (interface_), NULL);
ret = G_DBUS_INTERFACE_SKELETON_GET_CLASS (interface_)->get_vtable (interface_);
g_warn_if_fail (ret != NULL);
return ret;
}
/**
* g_dbus_interface_skeleton_get_properties:
* @interface_: A #GDBusInterfaceSkeleton.
*
* Gets all D-Bus properties for @interface_.
*
* Returns: A new, floating, #GVariant of type <link linkend="G-VARIANT-TYPE-VARDICT:CAPS">'a{sv}'</link>. Free with g_variant_unref().
*
* Since: 2.30
*/
GVariant *
g_dbus_interface_skeleton_get_properties (GDBusInterfaceSkeleton *interface_)
{
GVariant *ret;
g_return_val_if_fail (G_IS_DBUS_INTERFACE_SKELETON (interface_), NULL);
ret = G_DBUS_INTERFACE_SKELETON_GET_CLASS (interface_)->get_properties (interface_);
g_warn_if_fail (g_variant_is_floating (ret));
return ret;
}
/**
* g_dbus_interface_skeleton_flush:
* @interface_: A #GDBusInterfaceSkeleton.
*
* If @interface_ has outstanding changes, request for these changes to be
* emitted immediately.
*
* For example, an exported D-Bus interface may queue up property
* changes and emit the
* <literal>org.freedesktop.DBus.Properties::PropertiesChanged</literal>
* signal later (e.g. in an idle handler). This technique is useful
* for collapsing multiple property changes into one.
*
* Since: 2.30
*/
void
g_dbus_interface_skeleton_flush (GDBusInterfaceSkeleton *interface_)
{
g_return_if_fail (G_IS_DBUS_INTERFACE_SKELETON (interface_));
G_DBUS_INTERFACE_SKELETON_GET_CLASS (interface_)->flush (interface_);
}
/* ---------------------------------------------------------------------------------------------------- */
static GDBusInterfaceInfo *
_g_dbus_interface_skeleton_get_info (GDBusInterface *interface_)
{
GDBusInterfaceSkeleton *interface = G_DBUS_INTERFACE_SKELETON (interface_);
return g_dbus_interface_skeleton_get_info (interface);
}
static GDBusObject *
g_dbus_interface_skeleton_get_object (GDBusInterface *interface_)
{
GDBusInterfaceSkeleton *interface = G_DBUS_INTERFACE_SKELETON (interface_);
return interface->priv->object;
}
static void
g_dbus_interface_skeleton_set_object (GDBusInterface *interface_,
GDBusObject *object)
{
GDBusInterfaceSkeleton *interface = G_DBUS_INTERFACE_SKELETON (interface_);
if (interface->priv->object != NULL)
g_object_remove_weak_pointer (G_OBJECT (interface->priv->object), (gpointer *) &interface->priv->object);
interface->priv->object = object;
if (object != NULL)
g_object_add_weak_pointer (G_OBJECT (interface->priv->object), (gpointer *) &interface->priv->object);
}
static void
dbus_interface_interface_init (GDBusInterfaceIface *iface)
{
iface->get_info = _g_dbus_interface_skeleton_get_info;
iface->get_object = g_dbus_interface_skeleton_get_object;
iface->set_object = g_dbus_interface_skeleton_set_object;
}
/* ---------------------------------------------------------------------------------------------------- */
typedef struct
{
volatile gint ref_count;
GDBusInterfaceSkeleton *interface;
GDBusInterfaceMethodCallFunc method_call_func;
GDBusMethodInvocation *invocation;
GMainContext *context;
} DispatchData;
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);
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),
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));
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;
}
/* ---------------------------------------------------------------------------------------------------- */
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