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glib/gio/gdbusobjectmanagerserver.c
Christian Hergert 18a33f72db introspection: use (nullable) or (optional) instead of (allow-none) 
If we have an input parameter (or return value) we need to use (nullable).
However, if it is an (inout) or (out) parameter, (optional) is sufficient.

It looks like (nullable) could be used for everything according to the
Annotation documentation, but (optional) is more specific.
2016-11-22 14:14:37 -08:00

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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, see <http://www.gnu.org/licenses/>.
*
* Author: David Zeuthen <davidz@redhat.com>
*/
#include "config.h"
#include "gdbusobjectmanager.h"
#include "gdbusobjectmanagerserver.h"
#include "gdbusobject.h"
#include "gdbusobjectskeleton.h"
#include "gdbusinterfaceskeleton.h"
#include "gdbusconnection.h"
#include "gdbusintrospection.h"
#include "gdbusmethodinvocation.h"
#include "gdbuserror.h"
#include "gioerror.h"
#include "glibintl.h"
/**
* SECTION:gdbusobjectmanagerserver
* @short_description: Service-side object manager
* @include: gio/gio.h
*
* #GDBusObjectManagerServer is used to export #GDBusObject instances using
* the standardized
* [org.freedesktop.DBus.ObjectManager](http://dbus.freedesktop.org/doc/dbus-specification.html#standard-interfaces-objectmanager)
* interface. For example, remote D-Bus clients can get all objects
* and properties in a single call. Additionally, any change in the
* object hierarchy is broadcast using signals. This means that D-Bus
* clients can keep caches up to date by only listening to D-Bus
* signals.
*
* The recommended path to export an object manager at is the path form of the
* well-known name of a D-Bus service, or below. For example, if a D-Bus service
* is available at the well-known name `net.example.ExampleService1`, the object
* manager should typically be exported at `/net/example/ExampleService1`, or
* below (to allow for multiple object managers in a service).
*
* It is supported, but not recommended, to export an object manager at the root
* path, `/`.
*
* See #GDBusObjectManagerClient for the client-side code that is
* intended to be used with #GDBusObjectManagerServer or any D-Bus
* object implementing the org.freedesktop.DBus.ObjectManager
* interface.
*/
typedef struct
{
GDBusObjectSkeleton *object;
GDBusObjectManagerServer *manager;
GHashTable *map_iface_name_to_iface;
gboolean exported;
} RegistrationData;
static void registration_data_free (RegistrationData *data);
static void export_all (GDBusObjectManagerServer *manager);
static void unexport_all (GDBusObjectManagerServer *manager, gboolean only_manager);
static void g_dbus_object_manager_server_emit_interfaces_added (GDBusObjectManagerServer *manager,
RegistrationData *data,
const gchar *const *interfaces,
const gchar *object_path);
static void g_dbus_object_manager_server_emit_interfaces_removed (GDBusObjectManagerServer *manager,
RegistrationData *data,
const gchar *const *interfaces);
static gboolean g_dbus_object_manager_server_unexport_unlocked (GDBusObjectManagerServer *manager,
const gchar *object_path);
struct _GDBusObjectManagerServerPrivate
{
GMutex lock;
GDBusConnection *connection;
gchar *object_path;
gchar *object_path_ending_in_slash;
GHashTable *map_object_path_to_data;
guint manager_reg_id;
};
enum
{
PROP_0,
PROP_CONNECTION,
PROP_OBJECT_PATH
};
static void dbus_object_manager_interface_init (GDBusObjectManagerIface *iface);
G_DEFINE_TYPE_WITH_CODE (GDBusObjectManagerServer, g_dbus_object_manager_server, G_TYPE_OBJECT,
G_ADD_PRIVATE (GDBusObjectManagerServer)
G_IMPLEMENT_INTERFACE (G_TYPE_DBUS_OBJECT_MANAGER, dbus_object_manager_interface_init))
static void g_dbus_object_manager_server_constructed (GObject *object);
static void
g_dbus_object_manager_server_finalize (GObject *object)
{
GDBusObjectManagerServer *manager = G_DBUS_OBJECT_MANAGER_SERVER (object);
if (manager->priv->connection != NULL)
{
unexport_all (manager, TRUE);
g_object_unref (manager->priv->connection);
}
g_hash_table_unref (manager->priv->map_object_path_to_data);
g_free (manager->priv->object_path);
g_free (manager->priv->object_path_ending_in_slash);
g_mutex_clear (&manager->priv->lock);
if (G_OBJECT_CLASS (g_dbus_object_manager_server_parent_class)->finalize != NULL)
G_OBJECT_CLASS (g_dbus_object_manager_server_parent_class)->finalize (object);
}
static void
g_dbus_object_manager_server_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GDBusObjectManagerServer *manager = G_DBUS_OBJECT_MANAGER_SERVER (object);
switch (prop_id)
{
case PROP_CONNECTION:
g_mutex_lock (&manager->priv->lock);
g_value_set_object (value, manager->priv->connection);
g_mutex_unlock (&manager->priv->lock);
break;
case PROP_OBJECT_PATH:
g_value_set_string (value, g_dbus_object_manager_get_object_path (G_DBUS_OBJECT_MANAGER (manager)));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
g_dbus_object_manager_server_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GDBusObjectManagerServer *manager = G_DBUS_OBJECT_MANAGER_SERVER (object);
switch (prop_id)
{
case PROP_CONNECTION:
g_dbus_object_manager_server_set_connection (manager, g_value_get_object (value));
break;
case PROP_OBJECT_PATH:
g_assert (manager->priv->object_path == NULL);
g_assert (g_variant_is_object_path (g_value_get_string (value)));
manager->priv->object_path = g_value_dup_string (value);
if (g_str_equal (manager->priv->object_path, "/"))
manager->priv->object_path_ending_in_slash = g_strdup (manager->priv->object_path);
else
manager->priv->object_path_ending_in_slash = g_strdup_printf ("%s/", manager->priv->object_path);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
g_dbus_object_manager_server_class_init (GDBusObjectManagerServerClass *klass)
{
GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
gobject_class->finalize = g_dbus_object_manager_server_finalize;
gobject_class->constructed = g_dbus_object_manager_server_constructed;
gobject_class->set_property = g_dbus_object_manager_server_set_property;
gobject_class->get_property = g_dbus_object_manager_server_get_property;
/**
* GDBusObjectManagerServer:connection:
*
* The #GDBusConnection to export objects on.
*
* Since: 2.30
*/
g_object_class_install_property (gobject_class,
PROP_CONNECTION,
g_param_spec_object ("connection",
"Connection",
"The connection to export objects on",
G_TYPE_DBUS_CONNECTION,
G_PARAM_READABLE |
G_PARAM_WRITABLE |
G_PARAM_STATIC_STRINGS));
/**
* GDBusObjectManagerServer:object-path:
*
* The object path to register the manager object at.
*
* Since: 2.30
*/
g_object_class_install_property (gobject_class,
PROP_OBJECT_PATH,
g_param_spec_string ("object-path",
"Object Path",
"The object path to register the manager object at",
NULL,
G_PARAM_READABLE |
G_PARAM_WRITABLE |
G_PARAM_CONSTRUCT_ONLY |
G_PARAM_STATIC_STRINGS));
}
static void
g_dbus_object_manager_server_init (GDBusObjectManagerServer *manager)
{
manager->priv = g_dbus_object_manager_server_get_instance_private (manager);
g_mutex_init (&manager->priv->lock);
manager->priv->map_object_path_to_data = g_hash_table_new_full (g_str_hash,
g_str_equal,
g_free,
(GDestroyNotify) registration_data_free);
}
/**
* g_dbus_object_manager_server_new:
* @object_path: The object path to export the manager object at.
*
* Creates a new #GDBusObjectManagerServer object.
*
* The returned server isn't yet exported on any connection. To do so,
* use g_dbus_object_manager_server_set_connection(). Normally you
* want to export all of your objects before doing so to avoid
* [InterfacesAdded](http://dbus.freedesktop.org/doc/dbus-specification.html#standard-interfaces-objectmanager)
* signals being emitted.
*
* Returns: A #GDBusObjectManagerServer object. Free with g_object_unref().
*
* Since: 2.30
*/
GDBusObjectManagerServer *
g_dbus_object_manager_server_new (const gchar *object_path)
{
g_return_val_if_fail (g_variant_is_object_path (object_path), NULL);
return G_DBUS_OBJECT_MANAGER_SERVER (g_object_new (G_TYPE_DBUS_OBJECT_MANAGER_SERVER,
"object-path", object_path,
NULL));
}
/**
* g_dbus_object_manager_server_set_connection:
* @manager: A #GDBusObjectManagerServer.
* @connection: (nullable): A #GDBusConnection or %NULL.
*
* Exports all objects managed by @manager on @connection. If
* @connection is %NULL, stops exporting objects.
*/
void
g_dbus_object_manager_server_set_connection (GDBusObjectManagerServer *manager,
GDBusConnection *connection)
{
g_return_if_fail (G_IS_DBUS_OBJECT_MANAGER_SERVER (manager));
g_return_if_fail (connection == NULL || G_IS_DBUS_CONNECTION (connection));
g_mutex_lock (&manager->priv->lock);
if (manager->priv->connection == connection)
{
g_mutex_unlock (&manager->priv->lock);
goto out;
}
if (manager->priv->connection != NULL)
{
unexport_all (manager, FALSE);
g_object_unref (manager->priv->connection);
manager->priv->connection = NULL;
}
manager->priv->connection = connection != NULL ? g_object_ref (connection) : NULL;
if (manager->priv->connection != NULL)
export_all (manager);
g_mutex_unlock (&manager->priv->lock);
g_object_notify (G_OBJECT (manager), "connection");
out:
;
}
/**
* g_dbus_object_manager_server_get_connection:
* @manager: A #GDBusObjectManagerServer
*
* Gets the #GDBusConnection used by @manager.
*
* Returns: (transfer full): A #GDBusConnection object or %NULL if
* @manager isn't exported on a connection. The returned object should
* be freed with g_object_unref().
*
* Since: 2.30
*/
GDBusConnection *
g_dbus_object_manager_server_get_connection (GDBusObjectManagerServer *manager)
{
GDBusConnection *ret;
g_return_val_if_fail (G_IS_DBUS_OBJECT_MANAGER_SERVER (manager), NULL);
g_mutex_lock (&manager->priv->lock);
ret = manager->priv->connection != NULL ? g_object_ref (manager->priv->connection) : NULL;
g_mutex_unlock (&manager->priv->lock);
return ret;
}
/* ---------------------------------------------------------------------------------------------------- */
static void
registration_data_export_interface (RegistrationData *data,
GDBusInterfaceSkeleton *interface_skeleton,
const gchar *object_path)
{
GDBusInterfaceInfo *info;
GError *error;
info = g_dbus_interface_skeleton_get_info (interface_skeleton);
error = NULL;
if (data->manager->priv->connection != NULL)
{
if (!g_dbus_interface_skeleton_export (interface_skeleton,
data->manager->priv->connection,
object_path,
&error))
{
g_warning ("%s: Error registering object at %s with interface %s: %s",
G_STRLOC,
object_path,
info->name,
error->message);
g_error_free (error);
}
}
g_assert (g_hash_table_lookup (data->map_iface_name_to_iface, info->name) == NULL);
g_hash_table_insert (data->map_iface_name_to_iface,
info->name,
g_object_ref (interface_skeleton));
/* if we are already exported, then... */
if (data->exported)
{
const gchar *interfaces[2];
/* emit InterfacesAdded on the ObjectManager object */
interfaces[0] = info->name;
interfaces[1] = NULL;
g_dbus_object_manager_server_emit_interfaces_added (data->manager, data, interfaces, object_path);
}
}
static void
registration_data_unexport_interface (RegistrationData *data,
GDBusInterfaceSkeleton *interface_skeleton)
{
GDBusInterfaceInfo *info;
GDBusInterfaceSkeleton *iface;
info = g_dbus_interface_skeleton_get_info (interface_skeleton);
iface = g_hash_table_lookup (data->map_iface_name_to_iface, info->name);
g_assert (iface != NULL);
if (data->manager->priv->connection != NULL)
g_dbus_interface_skeleton_unexport (iface);
g_warn_if_fail (g_hash_table_remove (data->map_iface_name_to_iface, info->name));
/* if we are already exported, then... */
if (data->exported)
{
const gchar *interfaces[2];
/* emit InterfacesRemoved on the ObjectManager object */
interfaces[0] = info->name;
interfaces[1] = NULL;
g_dbus_object_manager_server_emit_interfaces_removed (data->manager, data, interfaces);
}
}
/* ---------------------------------------------------------------------------------------------------- */
static void
on_interface_added (GDBusObject *object,
GDBusInterface *interface,
gpointer user_data)
{
RegistrationData *data = user_data;
const gchar *object_path;
g_mutex_lock (&data->manager->priv->lock);
object_path = g_dbus_object_get_object_path (G_DBUS_OBJECT (data->object));
registration_data_export_interface (data, G_DBUS_INTERFACE_SKELETON (interface), object_path);
g_mutex_unlock (&data->manager->priv->lock);
}
static void
on_interface_removed (GDBusObject *object,
GDBusInterface *interface,
gpointer user_data)
{
RegistrationData *data = user_data;
g_mutex_lock (&data->manager->priv->lock);
registration_data_unexport_interface (data, G_DBUS_INTERFACE_SKELETON (interface));
g_mutex_unlock (&data->manager->priv->lock);
}
/* ---------------------------------------------------------------------------------------------------- */
static void
registration_data_free (RegistrationData *data)
{
GHashTableIter iter;
GDBusInterfaceSkeleton *iface;
data->exported = FALSE;
g_hash_table_iter_init (&iter, data->map_iface_name_to_iface);
while (g_hash_table_iter_next (&iter, NULL, (gpointer) &iface))
{
if (data->manager->priv->connection != NULL)
g_dbus_interface_skeleton_unexport (iface);
}
g_signal_handlers_disconnect_by_func (data->object, G_CALLBACK (on_interface_added), data);
g_signal_handlers_disconnect_by_func (data->object, G_CALLBACK (on_interface_removed), data);
g_object_unref (data->object);
g_hash_table_destroy (data->map_iface_name_to_iface);
g_free (data);
}
/* ---------------------------------------------------------------------------------------------------- */
static void
g_dbus_object_manager_server_export_unlocked (GDBusObjectManagerServer *manager,
GDBusObjectSkeleton *object,
const gchar *object_path)
{
RegistrationData *data;
GList *existing_interfaces;
GList *l;
GPtrArray *interface_names;
g_return_if_fail (G_IS_DBUS_OBJECT_MANAGER_SERVER (manager));
g_return_if_fail (G_IS_DBUS_OBJECT (object));
g_return_if_fail (g_str_has_prefix (object_path, manager->priv->object_path_ending_in_slash));
interface_names = g_ptr_array_new ();
data = g_hash_table_lookup (manager->priv->map_object_path_to_data, object_path);
if (data != NULL)
g_dbus_object_manager_server_unexport_unlocked (manager, object_path);
data = g_new0 (RegistrationData, 1);
data->object = g_object_ref (object);
data->manager = manager;
data->map_iface_name_to_iface = g_hash_table_new_full (g_str_hash,
g_str_equal,
NULL,
(GDestroyNotify) g_object_unref);
g_signal_connect (object,
"interface-added",
G_CALLBACK (on_interface_added),
data);
g_signal_connect (object,
"interface-removed",
G_CALLBACK (on_interface_removed),
data);
/* Register all known interfaces - note that data->exported is FALSE so
* we don't emit any InterfacesAdded signals.
*/
existing_interfaces = g_dbus_object_get_interfaces (G_DBUS_OBJECT (object));
for (l = existing_interfaces; l != NULL; l = l->next)
{
GDBusInterfaceSkeleton *interface_skeleton = G_DBUS_INTERFACE_SKELETON (l->data);
registration_data_export_interface (data, interface_skeleton, object_path);
g_ptr_array_add (interface_names, g_dbus_interface_skeleton_get_info (interface_skeleton)->name);
}
g_list_free_full (existing_interfaces, g_object_unref);
g_ptr_array_add (interface_names, NULL);
data->exported = TRUE;
/* now emit InterfacesAdded() for all the interfaces */
g_dbus_object_manager_server_emit_interfaces_added (manager, data, (const gchar *const *) interface_names->pdata, object_path);
g_ptr_array_unref (interface_names);
g_hash_table_insert (manager->priv->map_object_path_to_data,
g_strdup (object_path),
data);
}
/**
* g_dbus_object_manager_server_export:
* @manager: A #GDBusObjectManagerServer.
* @object: A #GDBusObjectSkeleton.
*
* Exports @object on @manager.
*
* If there is already a #GDBusObject exported at the object path,
* then the old object is removed.
*
* The object path for @object must be in the hierarchy rooted by the
* object path for @manager.
*
* Note that @manager will take a reference on @object for as long as
* it is exported.
*
* Since: 2.30
*/
void
g_dbus_object_manager_server_export (GDBusObjectManagerServer *manager,
GDBusObjectSkeleton *object)
{
g_return_if_fail (G_IS_DBUS_OBJECT_MANAGER_SERVER (manager));
g_mutex_lock (&manager->priv->lock);
g_dbus_object_manager_server_export_unlocked (manager, object,
g_dbus_object_get_object_path (G_DBUS_OBJECT (object)));
g_mutex_unlock (&manager->priv->lock);
}
/**
* g_dbus_object_manager_server_export_uniquely:
* @manager: A #GDBusObjectManagerServer.
* @object: An object.
*
* Like g_dbus_object_manager_server_export() but appends a string of
* the form _N (with N being a natural number) to @object's object path
* if an object with the given path already exists. As such, the
* #GDBusObjectProxy:g-object-path property of @object may be modified.
*
* Since: 2.30
*/
void
g_dbus_object_manager_server_export_uniquely (GDBusObjectManagerServer *manager,
GDBusObjectSkeleton *object)
{
gchar *orig_object_path;
gchar *object_path;
guint count;
gboolean modified;
orig_object_path = g_strdup (g_dbus_object_get_object_path (G_DBUS_OBJECT (object)));
g_return_if_fail (G_IS_DBUS_OBJECT_MANAGER_SERVER (manager));
g_return_if_fail (G_IS_DBUS_OBJECT (object));
g_return_if_fail (g_str_has_prefix (orig_object_path, manager->priv->object_path_ending_in_slash));
g_mutex_lock (&manager->priv->lock);
object_path = g_strdup (orig_object_path);
count = 1;
modified = FALSE;
while (TRUE)
{
RegistrationData *data;
data = g_hash_table_lookup (manager->priv->map_object_path_to_data, object_path);
if (data == NULL)
{
break;
}
g_free (object_path);
object_path = g_strdup_printf ("%s_%d", orig_object_path, count++);
modified = TRUE;
}
g_dbus_object_manager_server_export_unlocked (manager, object, object_path);
g_mutex_unlock (&manager->priv->lock);
if (modified)
g_dbus_object_skeleton_set_object_path (G_DBUS_OBJECT_SKELETON (object), object_path);
g_free (object_path);
g_free (orig_object_path);
}
/**
* g_dbus_object_manager_server_is_exported:
* @manager: A #GDBusObjectManagerServer.
* @object: An object.
*
* Returns whether @object is currently exported on @manager.
*
* Returns: %TRUE if @object is exported
*
* Since: 2.34
**/
gboolean
g_dbus_object_manager_server_is_exported (GDBusObjectManagerServer *manager,
GDBusObjectSkeleton *object)
{
RegistrationData *data = NULL;
const gchar *object_path;
gboolean object_is_exported;
g_return_val_if_fail (G_IS_DBUS_OBJECT_MANAGER_SERVER (manager), FALSE);
g_return_val_if_fail (G_IS_DBUS_OBJECT (object), FALSE);
g_mutex_lock (&manager->priv->lock);
object_path = g_dbus_object_get_object_path (G_DBUS_OBJECT (object));
if (object_path != NULL)
data = g_hash_table_lookup (manager->priv->map_object_path_to_data, object_path);
object_is_exported = (data != NULL);
g_mutex_unlock (&manager->priv->lock);
return object_is_exported;
}
/* ---------------------------------------------------------------------------------------------------- */
static gboolean
g_dbus_object_manager_server_unexport_unlocked (GDBusObjectManagerServer *manager,
const gchar *object_path)
{
RegistrationData *data;
gboolean ret;
g_return_val_if_fail (G_IS_DBUS_OBJECT_MANAGER_SERVER (manager), FALSE);
g_return_val_if_fail (g_variant_is_object_path (object_path), FALSE);
g_return_val_if_fail (g_str_has_prefix (object_path, manager->priv->object_path_ending_in_slash), FALSE);
ret = FALSE;
data = g_hash_table_lookup (manager->priv->map_object_path_to_data, object_path);
if (data != NULL)
{
GPtrArray *interface_names;
GHashTableIter iter;
const gchar *iface_name;
interface_names = g_ptr_array_new ();
g_hash_table_iter_init (&iter, data->map_iface_name_to_iface);
while (g_hash_table_iter_next (&iter, (gpointer) &iface_name, NULL))
g_ptr_array_add (interface_names, (gpointer) iface_name);
g_ptr_array_add (interface_names, NULL);
/* now emit InterfacesRemoved() for all the interfaces */
g_dbus_object_manager_server_emit_interfaces_removed (manager, data, (const gchar *const *) interface_names->pdata);
g_ptr_array_unref (interface_names);
g_hash_table_remove (manager->priv->map_object_path_to_data, object_path);
ret = TRUE;
}
return ret;
}
/**
* g_dbus_object_manager_server_unexport:
* @manager: A #GDBusObjectManagerServer.
* @object_path: An object path.
*
* If @manager has an object at @path, removes the object. Otherwise
* does nothing.
*
* Note that @object_path must be in the hierarchy rooted by the
* object path for @manager.
*
* Returns: %TRUE if object at @object_path was removed, %FALSE otherwise.
*
* Since: 2.30
*/
gboolean
g_dbus_object_manager_server_unexport (GDBusObjectManagerServer *manager,
const gchar *object_path)
{
gboolean ret;
g_return_val_if_fail (G_IS_DBUS_OBJECT_MANAGER_SERVER (manager), FALSE);
g_mutex_lock (&manager->priv->lock);
ret = g_dbus_object_manager_server_unexport_unlocked (manager, object_path);
g_mutex_unlock (&manager->priv->lock);
return ret;
}
/* ---------------------------------------------------------------------------------------------------- */
static const GDBusArgInfo manager_interfaces_added_signal_info_arg0 =
{
-1,
"object_path",
"o",
(GDBusAnnotationInfo**) NULL,
};
static const GDBusArgInfo manager_interfaces_added_signal_info_arg1 =
{
-1,
"interfaces_and_properties",
"a{sa{sv}}",
(GDBusAnnotationInfo**) NULL,
};
static const GDBusArgInfo * const manager_interfaces_added_signal_info_arg_pointers[] =
{
&manager_interfaces_added_signal_info_arg0,
&manager_interfaces_added_signal_info_arg1,
NULL
};
static const GDBusSignalInfo manager_interfaces_added_signal_info =
{
-1,
"InterfacesAdded",
(GDBusArgInfo**) &manager_interfaces_added_signal_info_arg_pointers,
(GDBusAnnotationInfo**) NULL
};
/* ---------- */
static const GDBusArgInfo manager_interfaces_removed_signal_info_arg0 =
{
-1,
"object_path",
"o",
(GDBusAnnotationInfo**) NULL,
};
static const GDBusArgInfo manager_interfaces_removed_signal_info_arg1 =
{
-1,
"interfaces",
"as",
(GDBusAnnotationInfo**) NULL,
};
static const GDBusArgInfo * const manager_interfaces_removed_signal_info_arg_pointers[] =
{
&manager_interfaces_removed_signal_info_arg0,
&manager_interfaces_removed_signal_info_arg1,
NULL
};
static const GDBusSignalInfo manager_interfaces_removed_signal_info =
{
-1,
"InterfacesRemoved",
(GDBusArgInfo**) &manager_interfaces_removed_signal_info_arg_pointers,
(GDBusAnnotationInfo**) NULL
};
/* ---------- */
static const GDBusSignalInfo * const manager_signal_info_pointers[] =
{
&manager_interfaces_added_signal_info,
&manager_interfaces_removed_signal_info,
NULL
};
/* ---------- */
static const GDBusArgInfo manager_get_all_method_info_out_arg0 =
{
-1,
"object_paths_interfaces_and_properties",
"a{oa{sa{sv}}}",
(GDBusAnnotationInfo**) NULL,
};
static const GDBusArgInfo * const manager_get_all_method_info_out_arg_pointers[] =
{
&manager_get_all_method_info_out_arg0,
NULL
};
static const GDBusMethodInfo manager_get_all_method_info =
{
-1,
"GetManagedObjects",
(GDBusArgInfo**) NULL,
(GDBusArgInfo**) &manager_get_all_method_info_out_arg_pointers,
(GDBusAnnotationInfo**) NULL
};
static const GDBusMethodInfo * const manager_method_info_pointers[] =
{
&manager_get_all_method_info,
NULL
};
/* ---------- */
static const GDBusInterfaceInfo manager_interface_info =
{
-1,
"org.freedesktop.DBus.ObjectManager",
(GDBusMethodInfo **) manager_method_info_pointers,
(GDBusSignalInfo **) manager_signal_info_pointers,
(GDBusPropertyInfo **) NULL,
(GDBusAnnotationInfo **) NULL
};
static void
manager_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)
{
GDBusObjectManagerServer *manager = G_DBUS_OBJECT_MANAGER_SERVER (user_data);
GVariantBuilder array_builder;
GHashTableIter object_iter;
RegistrationData *data;
g_mutex_lock (&manager->priv->lock);
if (g_strcmp0 (method_name, "GetManagedObjects") == 0)
{
g_variant_builder_init (&array_builder, G_VARIANT_TYPE ("a{oa{sa{sv}}}"));
g_hash_table_iter_init (&object_iter, manager->priv->map_object_path_to_data);
while (g_hash_table_iter_next (&object_iter, NULL, (gpointer) &data))
{
GVariantBuilder interfaces_builder;
GHashTableIter interface_iter;
GDBusInterfaceSkeleton *iface;
const gchar *iter_object_path;
g_variant_builder_init (&interfaces_builder, G_VARIANT_TYPE ("a{sa{sv}}"));
g_hash_table_iter_init (&interface_iter, data->map_iface_name_to_iface);
while (g_hash_table_iter_next (&interface_iter, NULL, (gpointer) &iface))
{
GVariant *properties = g_dbus_interface_skeleton_get_properties (iface);
g_variant_builder_add (&interfaces_builder, "{s@a{sv}}",
g_dbus_interface_skeleton_get_info (iface)->name,
properties);
g_variant_unref (properties);
}
iter_object_path = g_dbus_object_get_object_path (G_DBUS_OBJECT (data->object));
g_variant_builder_add (&array_builder,
"{oa{sa{sv}}}",
iter_object_path,
&interfaces_builder);
}
g_dbus_method_invocation_return_value (invocation,
g_variant_new ("(a{oa{sa{sv}}})",
&array_builder));
}
else
{
g_dbus_method_invocation_return_error (invocation,
G_DBUS_ERROR,
G_DBUS_ERROR_UNKNOWN_METHOD,
"Unknown method %s - only GetManagedObjects() is supported",
method_name);
}
g_mutex_unlock (&manager->priv->lock);
}
static const GDBusInterfaceVTable manager_interface_vtable =
{
manager_method_call, /* handle_method_call */
NULL, /* get_property */
NULL /* set_property */
};
/* ---------------------------------------------------------------------------------------------------- */
static void
g_dbus_object_manager_server_constructed (GObject *object)
{
GDBusObjectManagerServer *manager = G_DBUS_OBJECT_MANAGER_SERVER (object);
if (manager->priv->connection != NULL)
export_all (manager);
if (G_OBJECT_CLASS (g_dbus_object_manager_server_parent_class)->constructed != NULL)
G_OBJECT_CLASS (g_dbus_object_manager_server_parent_class)->constructed (object);
}
static void
g_dbus_object_manager_server_emit_interfaces_added (GDBusObjectManagerServer *manager,
RegistrationData *data,
const gchar *const *interfaces,
const gchar *object_path)
{
GVariantBuilder array_builder;
GError *error;
guint n;
if (data->manager->priv->connection == NULL)
goto out;
g_variant_builder_init (&array_builder, G_VARIANT_TYPE ("a{sa{sv}}"));
for (n = 0; interfaces[n] != NULL; n++)
{
GDBusInterfaceSkeleton *iface;
GVariant *properties;
iface = g_hash_table_lookup (data->map_iface_name_to_iface, interfaces[n]);
g_assert (iface != NULL);
properties = g_dbus_interface_skeleton_get_properties (iface);
g_variant_builder_add (&array_builder, "{s@a{sv}}", interfaces[n], properties);
g_variant_unref (properties);
}
error = NULL;
g_dbus_connection_emit_signal (data->manager->priv->connection,
NULL, /* destination_bus_name */
manager->priv->object_path,
manager_interface_info.name,
"InterfacesAdded",
g_variant_new ("(oa{sa{sv}})",
object_path,
&array_builder),
&error);
if (error)
{
if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CLOSED))
g_warning ("Couldn't emit InterfacesAdded signal: %s", error->message);
g_error_free (error);
}
out:
;
}
static void
g_dbus_object_manager_server_emit_interfaces_removed (GDBusObjectManagerServer *manager,
RegistrationData *data,
const gchar *const *interfaces)
{
GVariantBuilder array_builder;
GError *error;
guint n;
const gchar *object_path;
if (data->manager->priv->connection == NULL)
goto out;
g_variant_builder_init (&array_builder, G_VARIANT_TYPE ("as"));
for (n = 0; interfaces[n] != NULL; n++)
g_variant_builder_add (&array_builder, "s", interfaces[n]);
error = NULL;
object_path = g_dbus_object_get_object_path (G_DBUS_OBJECT (data->object));
g_dbus_connection_emit_signal (data->manager->priv->connection,
NULL, /* destination_bus_name */
manager->priv->object_path,
manager_interface_info.name,
"InterfacesRemoved",
g_variant_new ("(oas)",
object_path,
&array_builder),
&error);
if (error)
{
if (!g_error_matches (error, G_IO_ERROR, G_IO_ERROR_CLOSED))
g_warning ("Couldn't emit InterfacesRemoved signal: %s", error->message);
g_error_free (error);
}
out:
;
}
/* ---------------------------------------------------------------------------------------------------- */
static GList *
g_dbus_object_manager_server_get_objects (GDBusObjectManager *_manager)
{
GDBusObjectManagerServer *manager = G_DBUS_OBJECT_MANAGER_SERVER (_manager);
GList *ret;
GHashTableIter iter;
RegistrationData *data;
g_mutex_lock (&manager->priv->lock);
ret = NULL;
g_hash_table_iter_init (&iter, manager->priv->map_object_path_to_data);
while (g_hash_table_iter_next (&iter, NULL, (gpointer) &data))
{
ret = g_list_prepend (ret, g_object_ref (data->object));
}
g_mutex_unlock (&manager->priv->lock);
return ret;
}
static const gchar *
g_dbus_object_manager_server_get_object_path (GDBusObjectManager *_manager)
{
GDBusObjectManagerServer *manager = G_DBUS_OBJECT_MANAGER_SERVER (_manager);
return manager->priv->object_path;
}
static GDBusObject *
g_dbus_object_manager_server_get_object (GDBusObjectManager *_manager,
const gchar *object_path)
{
GDBusObjectManagerServer *manager = G_DBUS_OBJECT_MANAGER_SERVER (_manager);
GDBusObject *ret;
RegistrationData *data;
ret = NULL;
g_mutex_lock (&manager->priv->lock);
data = g_hash_table_lookup (manager->priv->map_object_path_to_data, object_path);
if (data != NULL)
ret = g_object_ref (data->object);
g_mutex_unlock (&manager->priv->lock);
return ret;
}
static GDBusInterface *
g_dbus_object_manager_server_get_interface (GDBusObjectManager *_manager,
const gchar *object_path,
const gchar *interface_name)
{
GDBusInterface *ret;
GDBusObject *object;
ret = NULL;
object = g_dbus_object_manager_get_object (_manager, object_path);
if (object == NULL)
goto out;
ret = g_dbus_object_get_interface (object, interface_name);
g_object_unref (object);
out:
return ret;
}
static void
dbus_object_manager_interface_init (GDBusObjectManagerIface *iface)
{
iface->get_object_path = g_dbus_object_manager_server_get_object_path;
iface->get_objects = g_dbus_object_manager_server_get_objects;
iface->get_object = g_dbus_object_manager_server_get_object;
iface->get_interface = g_dbus_object_manager_server_get_interface;
}
/* ---------------------------------------------------------------------------------------------------- */
static void
export_all (GDBusObjectManagerServer *manager)
{
GHashTableIter iter;
const gchar *object_path;
RegistrationData *data;
GHashTableIter iface_iter;
GDBusInterfaceSkeleton *iface;
GError *error;
g_return_if_fail (manager->priv->connection != NULL);
error = NULL;
g_warn_if_fail (manager->priv->manager_reg_id == 0);
manager->priv->manager_reg_id = g_dbus_connection_register_object (manager->priv->connection,
manager->priv->object_path,
(GDBusInterfaceInfo *) &manager_interface_info,
&manager_interface_vtable,
manager,
NULL, /* user_data_free_func */
&error);
if (manager->priv->manager_reg_id == 0)
{
g_warning ("%s: Error registering manager at %s: %s",
G_STRLOC,
manager->priv->object_path,
error->message);
g_error_free (error);
}
g_hash_table_iter_init (&iter, manager->priv->map_object_path_to_data);
while (g_hash_table_iter_next (&iter, (gpointer) &object_path, (gpointer) &data))
{
g_hash_table_iter_init (&iface_iter, data->map_iface_name_to_iface);
while (g_hash_table_iter_next (&iface_iter, NULL, (gpointer) &iface))
{
g_warn_if_fail (g_dbus_interface_skeleton_get_connection (iface) == NULL);
error = NULL;
if (!g_dbus_interface_skeleton_export (iface,
manager->priv->connection,
object_path,
&error))
{
g_warning ("%s: Error registering object at %s with interface %s: %s",
G_STRLOC,
object_path,
g_dbus_interface_skeleton_get_info (iface)->name,
error->message);
g_error_free (error);
}
}
}
}
static void
unexport_all (GDBusObjectManagerServer *manager, gboolean only_manager)
{
GHashTableIter iter;
RegistrationData *data;
GHashTableIter iface_iter;
GDBusInterfaceSkeleton *iface;
g_return_if_fail (manager->priv->connection != NULL);
g_warn_if_fail (manager->priv->manager_reg_id > 0);
if (manager->priv->manager_reg_id > 0)
{
g_warn_if_fail (g_dbus_connection_unregister_object (manager->priv->connection,
manager->priv->manager_reg_id));
manager->priv->manager_reg_id = 0;
}
if (only_manager)
goto out;
g_hash_table_iter_init (&iter, manager->priv->map_object_path_to_data);
while (g_hash_table_iter_next (&iter, NULL, (gpointer) &data))
{
g_hash_table_iter_init (&iface_iter, data->map_iface_name_to_iface);
while (g_hash_table_iter_next (&iface_iter, NULL, (gpointer) &iface))
{
g_warn_if_fail (g_dbus_interface_skeleton_get_connection (iface) != NULL);
g_dbus_interface_skeleton_unexport (iface);
}
}
out:
;
}
/* ---------------------------------------------------------------------------------------------------- */
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