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3b28df1e00
D-Bus versions < 1.6.18 (i.e. all current versions) have a bug with the path_namespace='/' match rule key. It should conceptually match everything, but actually matches nothing. This results in no property change (or other) signals being forwarded to the D-Bus client. The work-around implemented in GDBusObjectManagerClient is to remove the path_namespace match key if its value is ‘/’. For the upstream D-Bus bug, see: https://bugs.freedesktop.org/show_bug.cgi?id=70799 https://bugzilla.gnome.org/show_bug.cgi?id=710726
1755 lines
69 KiB
C
1755 lines
69 KiB
C
/* GDBus - GLib D-Bus Library
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*
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* Copyright (C) 2008-2010 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* Author: David Zeuthen <davidz@redhat.com>
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*/
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#include "config.h"
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#include "gdbusobjectmanager.h"
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#include "gdbusobjectmanagerclient.h"
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#include "gdbusobject.h"
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#include "gdbusprivate.h"
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#include "gioenumtypes.h"
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#include "ginitable.h"
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#include "gasyncresult.h"
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#include "gsimpleasyncresult.h"
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#include "gasyncinitable.h"
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#include "gdbusconnection.h"
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#include "gdbusutils.h"
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#include "gdbusobject.h"
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#include "gdbusobjectproxy.h"
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#include "gdbusproxy.h"
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#include "gdbusinterface.h"
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#include "glibintl.h"
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/**
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* SECTION:gdbusobjectmanagerclient
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* @short_description: Client-side object manager
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* @include: gio/gio.h
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*
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* #GDBusObjectManagerClient is used to create, monitor and delete object
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* proxies for remote objects exported by a #GDBusObjectManagerServer (or any
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* code implementing the <ulink
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* url="http://dbus.freedesktop.org/doc/dbus-specification.html#standard-interfaces-objectmanager">org.freedesktop.DBus.ObjectManager</ulink>
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* interface).
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*
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* Once an instance of this type has been created, you can connect to
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* the #GDBusObjectManager::object-added and
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* #GDBusObjectManager::object-removed signals and inspect the
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* #GDBusObjectProxy objects returned by
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* g_dbus_object_manager_get_objects().
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*
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* If the name for a #GDBusObjectManagerClient is not owned by anyone at
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* object construction time, the default behavior is to request the
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* message bus to launch an owner for the name. This behavior can be
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* disabled using the %G_DBUS_OBJECT_MANAGER_CLIENT_FLAGS_DO_NOT_AUTO_START
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* flag. It's also worth noting that this only works if the name of
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* interest is activatable in the first place. E.g. in some cases it
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* is not possible to launch an owner for the requested name. In this
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* case, #GDBusObjectManagerClient object construction still succeeds but
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* there will be no object proxies
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* (e.g. g_dbus_object_manager_get_objects() returns the empty list) and
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* the #GDBusObjectManagerClient:name-owner property is %NULL.
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*
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* The owner of the requested name can come and go (for example
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* consider a system service being restarted) – #GDBusObjectManagerClient
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* handles this case too; simply connect to the #GObject::notify
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* signal to watch for changes on the #GDBusObjectManagerClient:name-owner
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* property. When the name owner vanishes, the behavior is that
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* #GDBusObjectManagerClient:name-owner is set to %NULL (this includes
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* emission of the #GObject::notify signal) and then
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* #GDBusObjectManager::object-removed signals are synthesized
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* for all currently existing object proxies. Since
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* #GDBusObjectManagerClient:name-owner is %NULL when this happens, you can
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* use this information to disambiguate a synthesized signal from a
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* genuine signal caused by object removal on the remote
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* #GDBusObjectManager. Similarly, when a new name owner appears,
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* #GDBusObjectManager::object-added signals are synthesized
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* while #GDBusObjectManagerClient:name-owner is still %NULL. Only when all
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* object proxies have been added, the #GDBusObjectManagerClient:name-owner
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* is set to the new name owner (this includes emission of the
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* #GObject::notify signal). Furthermore, you are guaranteed that
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* #GDBusObjectManagerClient:name-owner will alternate between a name owner
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* (e.g. <literal>:1.42</literal>) and %NULL even in the case where
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* the name of interest is atomically replaced
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*
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* Ultimately, #GDBusObjectManagerClient is used to obtain #GDBusProxy
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* instances. All signals (including the
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* <literal>org.freedesktop.DBus.Properties::PropertiesChanged</literal>
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* signal) delivered to #GDBusProxy instances are guaranteed to
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* originate from the name owner. This guarantee along with the
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* behavior described above, means that certain race conditions
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* including the <emphasis><quote>half the proxy is from the old owner
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* and the other half is from the new owner</quote></emphasis> problem
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* cannot happen.
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*
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* To avoid having the application connect to signals on the returned
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* #GDBusObjectProxy and #GDBusProxy objects, the
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* #GDBusObject::interface-added,
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* #GDBusObject::interface-removed,
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* #GDBusProxy::g-properties-changed and
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* #GDBusProxy::g-signal signals
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* are also emitted on the #GDBusObjectManagerClient instance managing these
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* objects. The signals emitted are
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* #GDBusObjectManager::interface-added,
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* #GDBusObjectManager::interface-removed,
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* #GDBusObjectManagerClient::interface-proxy-properties-changed and
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* #GDBusObjectManagerClient::interface-proxy-signal.
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*
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* Note that all callbacks and signals are emitted in the
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* <link linkend="g-main-context-push-thread-default">thread-default main loop</link>
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* that the #GDBusObjectManagerClient object was constructed
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* in. Additionally, the #GDBusObjectProxy and #GDBusProxy objects
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* originating from the #GDBusObjectManagerClient object will be created in
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* the same context and, consequently, will deliver signals in the
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* same main loop.
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*/
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struct _GDBusObjectManagerClientPrivate
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{
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GMutex lock;
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GBusType bus_type;
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GDBusConnection *connection;
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gchar *object_path;
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gchar *name;
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gchar *name_owner;
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GDBusObjectManagerClientFlags flags;
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GDBusProxy *control_proxy;
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GHashTable *map_object_path_to_object_proxy;
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guint signal_subscription_id;
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gchar *match_rule;
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GDBusProxyTypeFunc get_proxy_type_func;
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gpointer get_proxy_type_user_data;
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GDestroyNotify get_proxy_type_destroy_notify;
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};
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enum
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{
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PROP_0,
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PROP_BUS_TYPE,
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PROP_CONNECTION,
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PROP_FLAGS,
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PROP_OBJECT_PATH,
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PROP_NAME,
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PROP_NAME_OWNER,
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PROP_GET_PROXY_TYPE_FUNC,
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PROP_GET_PROXY_TYPE_USER_DATA,
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PROP_GET_PROXY_TYPE_DESTROY_NOTIFY
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};
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enum
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{
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INTERFACE_PROXY_SIGNAL_SIGNAL,
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INTERFACE_PROXY_PROPERTIES_CHANGED_SIGNAL,
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LAST_SIGNAL
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};
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static guint signals[LAST_SIGNAL] = { 0 };
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static void initable_iface_init (GInitableIface *initable_iface);
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static void async_initable_iface_init (GAsyncInitableIface *async_initable_iface);
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static void dbus_object_manager_interface_init (GDBusObjectManagerIface *iface);
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G_DEFINE_TYPE_WITH_CODE (GDBusObjectManagerClient, g_dbus_object_manager_client, G_TYPE_OBJECT,
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G_ADD_PRIVATE (GDBusObjectManagerClient)
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G_IMPLEMENT_INTERFACE (G_TYPE_INITABLE, initable_iface_init)
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G_IMPLEMENT_INTERFACE (G_TYPE_ASYNC_INITABLE, async_initable_iface_init)
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G_IMPLEMENT_INTERFACE (G_TYPE_DBUS_OBJECT_MANAGER, dbus_object_manager_interface_init));
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static void maybe_unsubscribe_signals (GDBusObjectManagerClient *manager);
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static void on_control_proxy_g_signal (GDBusProxy *proxy,
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const gchar *sender_name,
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const gchar *signal_name,
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GVariant *parameters,
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gpointer user_data);
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static void process_get_all_result (GDBusObjectManagerClient *manager,
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GVariant *value,
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const gchar *name_owner);
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static void
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g_dbus_object_manager_client_finalize (GObject *object)
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{
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GDBusObjectManagerClient *manager = G_DBUS_OBJECT_MANAGER_CLIENT (object);
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maybe_unsubscribe_signals (manager);
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g_hash_table_unref (manager->priv->map_object_path_to_object_proxy);
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if (manager->priv->control_proxy != NULL)
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{
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g_signal_handlers_disconnect_by_func (manager->priv->control_proxy,
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on_control_proxy_g_signal,
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manager);
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g_object_unref (manager->priv->control_proxy);
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}
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g_object_unref (manager->priv->connection);
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g_free (manager->priv->object_path);
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g_free (manager->priv->name);
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g_free (manager->priv->name_owner);
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if (manager->priv->get_proxy_type_destroy_notify != NULL)
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manager->priv->get_proxy_type_destroy_notify (manager->priv->get_proxy_type_user_data);
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g_mutex_clear (&manager->priv->lock);
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if (G_OBJECT_CLASS (g_dbus_object_manager_client_parent_class)->finalize != NULL)
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G_OBJECT_CLASS (g_dbus_object_manager_client_parent_class)->finalize (object);
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}
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static void
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g_dbus_object_manager_client_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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GDBusObjectManagerClient *manager = G_DBUS_OBJECT_MANAGER_CLIENT (_object);
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switch (prop_id)
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{
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case PROP_CONNECTION:
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g_value_set_object (value, g_dbus_object_manager_client_get_connection (manager));
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break;
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case PROP_OBJECT_PATH:
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g_value_set_string (value, g_dbus_object_manager_get_object_path (G_DBUS_OBJECT_MANAGER (manager)));
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break;
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case PROP_NAME:
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g_value_set_string (value, g_dbus_object_manager_client_get_name (manager));
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break;
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case PROP_FLAGS:
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g_value_set_flags (value, g_dbus_object_manager_client_get_flags (manager));
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break;
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case PROP_NAME_OWNER:
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g_value_take_string (value, g_dbus_object_manager_client_get_name_owner (manager));
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (manager, 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_object_manager_client_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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GDBusObjectManagerClient *manager = G_DBUS_OBJECT_MANAGER_CLIENT (_object);
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const gchar *name;
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switch (prop_id)
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{
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case PROP_BUS_TYPE:
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manager->priv->bus_type = g_value_get_enum (value);
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break;
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case PROP_CONNECTION:
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if (g_value_get_object (value) != NULL)
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{
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g_assert (manager->priv->connection == NULL);
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g_assert (G_IS_DBUS_CONNECTION (g_value_get_object (value)));
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manager->priv->connection = g_value_dup_object (value);
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}
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break;
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case PROP_OBJECT_PATH:
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g_assert (manager->priv->object_path == NULL);
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g_assert (g_variant_is_object_path (g_value_get_string (value)));
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manager->priv->object_path = g_value_dup_string (value);
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break;
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case PROP_NAME:
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g_assert (manager->priv->name == NULL);
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name = g_value_get_string (value);
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g_assert (name == NULL || g_dbus_is_name (name));
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manager->priv->name = g_strdup (name);
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break;
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case PROP_FLAGS:
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manager->priv->flags = g_value_get_flags (value);
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break;
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case PROP_GET_PROXY_TYPE_FUNC:
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manager->priv->get_proxy_type_func = g_value_get_pointer (value);
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break;
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case PROP_GET_PROXY_TYPE_USER_DATA:
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manager->priv->get_proxy_type_user_data = g_value_get_pointer (value);
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break;
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case PROP_GET_PROXY_TYPE_DESTROY_NOTIFY:
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manager->priv->get_proxy_type_destroy_notify = g_value_get_pointer (value);
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break;
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default:
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G_OBJECT_WARN_INVALID_PROPERTY_ID (manager, 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_object_manager_client_class_init (GDBusObjectManagerClientClass *klass)
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{
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GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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gobject_class->finalize = g_dbus_object_manager_client_finalize;
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gobject_class->set_property = g_dbus_object_manager_client_set_property;
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gobject_class->get_property = g_dbus_object_manager_client_get_property;
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/**
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* GDBusObjectManagerClient:connection:
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*
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* The #GDBusConnection to use.
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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_CONNECTION,
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g_param_spec_object ("connection",
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"Connection",
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"The connection to use",
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G_TYPE_DBUS_CONNECTION,
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G_PARAM_READABLE |
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G_PARAM_WRITABLE |
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G_PARAM_CONSTRUCT_ONLY |
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G_PARAM_STATIC_STRINGS));
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/**
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* GDBusObjectManagerClient:bus-type:
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*
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* If this property is not %G_BUS_TYPE_NONE, then
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* #GDBusObjectManagerClient:connection must be %NULL and will be set to the
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* #GDBusConnection obtained by calling g_bus_get() with the value
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* of this property.
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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_BUS_TYPE,
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g_param_spec_enum ("bus-type",
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"Bus Type",
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"The bus to connect to, if any",
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G_TYPE_BUS_TYPE,
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G_BUS_TYPE_NONE,
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G_PARAM_WRITABLE |
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G_PARAM_CONSTRUCT_ONLY |
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G_PARAM_STATIC_NAME |
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G_PARAM_STATIC_BLURB |
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G_PARAM_STATIC_NICK));
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/**
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* GDBusObjectManagerClient:flags:
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*
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* Flags from the #GDBusObjectManagerClientFlags 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_FLAGS,
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g_param_spec_flags ("flags",
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"Flags",
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"Flags for the proxy manager",
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G_TYPE_DBUS_OBJECT_MANAGER_CLIENT_FLAGS,
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G_DBUS_OBJECT_MANAGER_CLIENT_FLAGS_NONE,
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G_PARAM_READABLE |
|
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G_PARAM_WRITABLE |
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G_PARAM_CONSTRUCT_ONLY |
|
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G_PARAM_STATIC_NAME |
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G_PARAM_STATIC_BLURB |
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G_PARAM_STATIC_NICK));
|
||
|
||
/**
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* GDBusObjectManagerClient:object-path:
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*
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* The object path the manager is for.
|
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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_OBJECT_PATH,
|
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g_param_spec_string ("object-path",
|
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"Object Path",
|
||
"The object path of the control object",
|
||
NULL,
|
||
G_PARAM_READABLE |
|
||
G_PARAM_WRITABLE |
|
||
G_PARAM_CONSTRUCT_ONLY |
|
||
G_PARAM_STATIC_STRINGS));
|
||
|
||
/**
|
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* GDBusObjectManagerClient:name:
|
||
*
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* The well-known name or unique name that the manager is for.
|
||
*
|
||
* Since: 2.30
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
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PROP_NAME,
|
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g_param_spec_string ("name",
|
||
"Name",
|
||
"Name that the manager is for",
|
||
NULL,
|
||
G_PARAM_READABLE |
|
||
G_PARAM_WRITABLE |
|
||
G_PARAM_CONSTRUCT_ONLY |
|
||
G_PARAM_STATIC_STRINGS));
|
||
|
||
/**
|
||
* GDBusObjectManagerClient:name-owner:
|
||
*
|
||
* The unique name that owns #GDBusObjectManagerClient:name or %NULL if
|
||
* no-one is currently owning the name. Connect to the
|
||
* #GObject::notify signal to track changes to this property.
|
||
*
|
||
* Since: 2.30
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_NAME_OWNER,
|
||
g_param_spec_string ("name-owner",
|
||
"Name Owner",
|
||
"The owner of the name we are watching",
|
||
NULL,
|
||
G_PARAM_READABLE |
|
||
G_PARAM_STATIC_STRINGS));
|
||
|
||
/**
|
||
* GDBusObjectManagerClient:get-proxy-type-func:
|
||
*
|
||
* The #GDBusProxyTypeFunc to use when determining what #GType to
|
||
* use for interface proxies or %NULL.
|
||
*
|
||
* Since: 2.30
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_GET_PROXY_TYPE_FUNC,
|
||
g_param_spec_pointer ("get-proxy-type-func",
|
||
"GDBusProxyTypeFunc Function Pointer",
|
||
"The GDBusProxyTypeFunc pointer to use",
|
||
G_PARAM_READABLE |
|
||
G_PARAM_WRITABLE |
|
||
G_PARAM_CONSTRUCT_ONLY |
|
||
G_PARAM_STATIC_STRINGS));
|
||
|
||
/**
|
||
* GDBusObjectManagerClient:get-proxy-type-user-data:
|
||
*
|
||
* The #gpointer user_data to pass to #GDBusObjectManagerClient:get-proxy-type-func.
|
||
*
|
||
* Since: 2.30
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_GET_PROXY_TYPE_USER_DATA,
|
||
g_param_spec_pointer ("get-proxy-type-user-data",
|
||
"GDBusProxyTypeFunc User Data",
|
||
"The GDBusProxyTypeFunc user_data",
|
||
G_PARAM_READABLE |
|
||
G_PARAM_WRITABLE |
|
||
G_PARAM_CONSTRUCT_ONLY |
|
||
G_PARAM_STATIC_STRINGS));
|
||
|
||
/**
|
||
* GDBusObjectManagerClient:get-proxy-type-destroy-notify:
|
||
*
|
||
* A #GDestroyNotify for the #gpointer user_data in #GDBusObjectManagerClient:get-proxy-type-user-data.
|
||
*
|
||
* Since: 2.30
|
||
*/
|
||
g_object_class_install_property (gobject_class,
|
||
PROP_GET_PROXY_TYPE_DESTROY_NOTIFY,
|
||
g_param_spec_pointer ("get-proxy-type-destroy-notify",
|
||
"GDBusProxyTypeFunc user data free function",
|
||
"The GDBusProxyTypeFunc user data free function",
|
||
G_PARAM_READABLE |
|
||
G_PARAM_WRITABLE |
|
||
G_PARAM_CONSTRUCT_ONLY |
|
||
G_PARAM_STATIC_STRINGS));
|
||
|
||
/**
|
||
* GDBusObjectManagerClient::interface-proxy-signal:
|
||
* @manager: The #GDBusObjectManagerClient emitting the signal.
|
||
* @object_proxy: The #GDBusObjectProxy on which an interface is emitting a D-Bus signal.
|
||
* @interface_proxy: The #GDBusProxy that is emitting a D-Bus signal.
|
||
* @sender_name: The sender of the signal or NULL if the connection is not a bus connection.
|
||
* @signal_name: The signal name.
|
||
* @parameters: A #GVariant tuple with parameters for the signal.
|
||
*
|
||
* Emitted when a D-Bus signal is received on @interface_proxy.
|
||
*
|
||
* This signal exists purely as a convenience to avoid having to
|
||
* connect signals to all interface proxies managed by @manager.
|
||
*
|
||
* This signal is emitted in the
|
||
* <link linkend="g-main-context-push-thread-default">thread-default main loop</link>
|
||
* that @manager was constructed in.
|
||
*
|
||
* Since: 2.30
|
||
*/
|
||
signals[INTERFACE_PROXY_SIGNAL_SIGNAL] =
|
||
g_signal_new ("interface-proxy-signal",
|
||
G_TYPE_DBUS_OBJECT_MANAGER_CLIENT,
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GDBusObjectManagerClientClass, interface_proxy_signal),
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
G_TYPE_NONE,
|
||
5,
|
||
G_TYPE_DBUS_OBJECT_PROXY,
|
||
G_TYPE_DBUS_PROXY,
|
||
G_TYPE_STRING,
|
||
G_TYPE_STRING,
|
||
G_TYPE_VARIANT);
|
||
|
||
/**
|
||
* GDBusObjectManagerClient::interface-proxy-properties-changed:
|
||
* @manager: The #GDBusObjectManagerClient emitting the signal.
|
||
* @object_proxy: The #GDBusObjectProxy on which an interface has properties that are changing.
|
||
* @interface_proxy: The #GDBusProxy that has properties that are changing.
|
||
* @changed_properties: A #GVariant containing the properties that changed.
|
||
* @invalidated_properties: A %NULL terminated array of properties that was invalidated.
|
||
*
|
||
* Emitted when one or more D-Bus properties on proxy changes. The
|
||
* local cache has already been updated when this signal fires. Note
|
||
* that both @changed_properties and @invalidated_properties are
|
||
* guaranteed to never be %NULL (either may be empty though).
|
||
*
|
||
* This signal exists purely as a convenience to avoid having to
|
||
* connect signals to all interface proxies managed by @manager.
|
||
*
|
||
* This signal is emitted in the
|
||
* <link linkend="g-main-context-push-thread-default">thread-default main loop</link>
|
||
* that @manager was constructed in.
|
||
*
|
||
* Since: 2.30
|
||
*/
|
||
signals[INTERFACE_PROXY_PROPERTIES_CHANGED_SIGNAL] =
|
||
g_signal_new ("interface-proxy-properties-changed",
|
||
G_TYPE_DBUS_OBJECT_MANAGER_CLIENT,
|
||
G_SIGNAL_RUN_LAST,
|
||
G_STRUCT_OFFSET (GDBusObjectManagerClientClass, interface_proxy_properties_changed),
|
||
NULL,
|
||
NULL,
|
||
NULL,
|
||
G_TYPE_NONE,
|
||
4,
|
||
G_TYPE_DBUS_OBJECT_PROXY,
|
||
G_TYPE_DBUS_PROXY,
|
||
G_TYPE_VARIANT,
|
||
G_TYPE_STRV);
|
||
}
|
||
|
||
static void
|
||
g_dbus_object_manager_client_init (GDBusObjectManagerClient *manager)
|
||
{
|
||
manager->priv = g_dbus_object_manager_client_get_instance_private (manager);
|
||
g_mutex_init (&manager->priv->lock);
|
||
manager->priv->map_object_path_to_object_proxy = g_hash_table_new_full (g_str_hash,
|
||
g_str_equal,
|
||
g_free,
|
||
(GDestroyNotify) g_object_unref);
|
||
}
|
||
|
||
/* ---------------------------------------------------------------------------------------------------- */
|
||
|
||
/**
|
||
* g_dbus_object_manager_client_new_sync:
|
||
* @connection: A #GDBusConnection.
|
||
* @flags: Zero or more flags from the #GDBusObjectManagerClientFlags enumeration.
|
||
* @name: (allow-none): The owner of the control object (unique or well-known name), or %NULL when not using a message bus connection.
|
||
* @object_path: The object path of the control object.
|
||
* @get_proxy_type_func: (allow-none): A #GDBusProxyTypeFunc function or %NULL to always construct #GDBusProxy proxies.
|
||
* @get_proxy_type_user_data: User data to pass to @get_proxy_type_func.
|
||
* @get_proxy_type_destroy_notify: (allow-none): Free function for @get_proxy_type_user_data or %NULL.
|
||
* @cancellable: (allow-none): A #GCancellable or %NULL
|
||
* @error: Return location for error or %NULL.
|
||
*
|
||
* Creates a new #GDBusObjectManagerClient object.
|
||
*
|
||
* This is a synchronous failable constructor - the calling thread is
|
||
* blocked until a reply is received. See g_dbus_object_manager_client_new()
|
||
* for the asynchronous version.
|
||
*
|
||
* Returns: (transfer full) (type GDBusObjectManagerClient): A
|
||
* #GDBusObjectManagerClient object or %NULL if @error is set. Free
|
||
* with g_object_unref().
|
||
*
|
||
* Since: 2.30
|
||
*/
|
||
GDBusObjectManager *
|
||
g_dbus_object_manager_client_new_sync (GDBusConnection *connection,
|
||
GDBusObjectManagerClientFlags flags,
|
||
const gchar *name,
|
||
const gchar *object_path,
|
||
GDBusProxyTypeFunc get_proxy_type_func,
|
||
gpointer get_proxy_type_user_data,
|
||
GDestroyNotify get_proxy_type_destroy_notify,
|
||
GCancellable *cancellable,
|
||
GError **error)
|
||
{
|
||
GInitable *initable;
|
||
|
||
g_return_val_if_fail (G_IS_DBUS_CONNECTION (connection), NULL);
|
||
g_return_val_if_fail ((name == NULL && g_dbus_connection_get_unique_name (connection) == NULL) ||
|
||
g_dbus_is_name (name), NULL);
|
||
g_return_val_if_fail (g_variant_is_object_path (object_path), NULL);
|
||
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
|
||
|
||
initable = g_initable_new (G_TYPE_DBUS_OBJECT_MANAGER_CLIENT,
|
||
cancellable,
|
||
error,
|
||
"connection", connection,
|
||
"flags", flags,
|
||
"name", name,
|
||
"object-path", object_path,
|
||
"get-proxy-type-func", get_proxy_type_func,
|
||
"get-proxy-type-user-data", get_proxy_type_user_data,
|
||
"get-proxy-type-destroy-notify", get_proxy_type_destroy_notify,
|
||
NULL);
|
||
if (initable != NULL)
|
||
return G_DBUS_OBJECT_MANAGER (initable);
|
||
else
|
||
return NULL;
|
||
}
|
||
|
||
/**
|
||
* g_dbus_object_manager_client_new:
|
||
* @connection: A #GDBusConnection.
|
||
* @flags: Zero or more flags from the #GDBusObjectManagerClientFlags enumeration.
|
||
* @name: The owner of the control object (unique or well-known name).
|
||
* @object_path: The object path of the control object.
|
||
* @get_proxy_type_func: (allow-none): A #GDBusProxyTypeFunc function or %NULL to always construct #GDBusProxy proxies.
|
||
* @get_proxy_type_user_data: User data to pass to @get_proxy_type_func.
|
||
* @get_proxy_type_destroy_notify: (allow-none): Free function for @get_proxy_type_user_data or %NULL.
|
||
* @cancellable: (allow-none): A #GCancellable or %NULL
|
||
* @callback: A #GAsyncReadyCallback to call when the request is satisfied.
|
||
* @user_data: The data to pass to @callback.
|
||
*
|
||
* Asynchronously creates a new #GDBusObjectManagerClient object.
|
||
*
|
||
* This is an asynchronous failable constructor. When the result is
|
||
* ready, @callback will be invoked in the
|
||
* <link linkend="g-main-context-push-thread-default">thread-default main loop</link>
|
||
* of the thread you are calling this method from. You can
|
||
* then call g_dbus_object_manager_client_new_finish() to get the result. See
|
||
* g_dbus_object_manager_client_new_sync() for the synchronous version.
|
||
*
|
||
* Since: 2.30
|
||
*/
|
||
void
|
||
g_dbus_object_manager_client_new (GDBusConnection *connection,
|
||
GDBusObjectManagerClientFlags flags,
|
||
const gchar *name,
|
||
const gchar *object_path,
|
||
GDBusProxyTypeFunc get_proxy_type_func,
|
||
gpointer get_proxy_type_user_data,
|
||
GDestroyNotify get_proxy_type_destroy_notify,
|
||
GCancellable *cancellable,
|
||
GAsyncReadyCallback callback,
|
||
gpointer user_data)
|
||
{
|
||
g_return_if_fail (G_IS_DBUS_CONNECTION (connection));
|
||
g_return_if_fail ((name == NULL && g_dbus_connection_get_unique_name (connection) == NULL) ||
|
||
g_dbus_is_name (name));
|
||
g_return_if_fail (g_variant_is_object_path (object_path));
|
||
|
||
g_async_initable_new_async (G_TYPE_DBUS_OBJECT_MANAGER_CLIENT,
|
||
G_PRIORITY_DEFAULT,
|
||
cancellable,
|
||
callback,
|
||
user_data,
|
||
"connection", connection,
|
||
"flags", flags,
|
||
"name", name,
|
||
"object-path", object_path,
|
||
"get-proxy-type-func", get_proxy_type_func,
|
||
"get-proxy-type-user-data", get_proxy_type_user_data,
|
||
"get-proxy-type-destroy-notify", get_proxy_type_destroy_notify,
|
||
NULL);
|
||
}
|
||
|
||
/**
|
||
* g_dbus_object_manager_client_new_finish:
|
||
* @res: A #GAsyncResult obtained from the #GAsyncReadyCallback passed to g_dbus_object_manager_client_new().
|
||
* @error: Return location for error or %NULL.
|
||
*
|
||
* Finishes an operation started with g_dbus_object_manager_client_new().
|
||
*
|
||
* Returns: (transfer full) (type GDBusObjectManagerClient): A
|
||
* #GDBusObjectManagerClient object or %NULL if @error is set. Free
|
||
* with g_object_unref().
|
||
*
|
||
* Since: 2.30
|
||
*/
|
||
GDBusObjectManager *
|
||
g_dbus_object_manager_client_new_finish (GAsyncResult *res,
|
||
GError **error)
|
||
{
|
||
GObject *object;
|
||
GObject *source_object;
|
||
|
||
source_object = g_async_result_get_source_object (res);
|
||
g_assert (source_object != NULL);
|
||
|
||
object = g_async_initable_new_finish (G_ASYNC_INITABLE (source_object),
|
||
res,
|
||
error);
|
||
g_object_unref (source_object);
|
||
|
||
if (object != NULL)
|
||
return G_DBUS_OBJECT_MANAGER (object);
|
||
else
|
||
return NULL;
|
||
}
|
||
|
||
/* ---------------------------------------------------------------------------------------------------- */
|
||
|
||
/**
|
||
* g_dbus_object_manager_client_new_for_bus_sync:
|
||
* @bus_type: A #GBusType.
|
||
* @flags: Zero or more flags from the #GDBusObjectManagerClientFlags enumeration.
|
||
* @name: The owner of the control object (unique or well-known name).
|
||
* @object_path: The object path of the control object.
|
||
* @get_proxy_type_func: (allow-none): A #GDBusProxyTypeFunc function or %NULL to always construct #GDBusProxy proxies.
|
||
* @get_proxy_type_user_data: User data to pass to @get_proxy_type_func.
|
||
* @get_proxy_type_destroy_notify: (allow-none): Free function for @get_proxy_type_user_data or %NULL.
|
||
* @cancellable: (allow-none): A #GCancellable or %NULL
|
||
* @error: Return location for error or %NULL.
|
||
*
|
||
* Like g_dbus_object_manager_client_new_sync() but takes a #GBusType instead
|
||
* of a #GDBusConnection.
|
||
*
|
||
* This is a synchronous failable constructor - the calling thread is
|
||
* blocked until a reply is received. See g_dbus_object_manager_client_new_for_bus()
|
||
* for the asynchronous version.
|
||
*
|
||
* Returns: (transfer full) (type GDBusObjectManagerClient): A
|
||
* #GDBusObjectManagerClient object or %NULL if @error is set. Free
|
||
* with g_object_unref().
|
||
*
|
||
* Since: 2.30
|
||
*/
|
||
GDBusObjectManager *
|
||
g_dbus_object_manager_client_new_for_bus_sync (GBusType bus_type,
|
||
GDBusObjectManagerClientFlags flags,
|
||
const gchar *name,
|
||
const gchar *object_path,
|
||
GDBusProxyTypeFunc get_proxy_type_func,
|
||
gpointer get_proxy_type_user_data,
|
||
GDestroyNotify get_proxy_type_destroy_notify,
|
||
GCancellable *cancellable,
|
||
GError **error)
|
||
{
|
||
GInitable *initable;
|
||
|
||
g_return_val_if_fail (bus_type != G_BUS_TYPE_NONE, NULL);
|
||
g_return_val_if_fail (g_dbus_is_name (name), NULL);
|
||
g_return_val_if_fail (g_variant_is_object_path (object_path), NULL);
|
||
g_return_val_if_fail (error == NULL || *error == NULL, NULL);
|
||
|
||
initable = g_initable_new (G_TYPE_DBUS_OBJECT_MANAGER_CLIENT,
|
||
cancellable,
|
||
error,
|
||
"bus-type", bus_type,
|
||
"flags", flags,
|
||
"name", name,
|
||
"object-path", object_path,
|
||
"get-proxy-type-func", get_proxy_type_func,
|
||
"get-proxy-type-user-data", get_proxy_type_user_data,
|
||
"get-proxy-type-destroy-notify", get_proxy_type_destroy_notify,
|
||
NULL);
|
||
if (initable != NULL)
|
||
return G_DBUS_OBJECT_MANAGER (initable);
|
||
else
|
||
return NULL;
|
||
}
|
||
|
||
/**
|
||
* g_dbus_object_manager_client_new_for_bus:
|
||
* @bus_type: A #GBusType.
|
||
* @flags: Zero or more flags from the #GDBusObjectManagerClientFlags enumeration.
|
||
* @name: The owner of the control object (unique or well-known name).
|
||
* @object_path: The object path of the control object.
|
||
* @get_proxy_type_func: (allow-none): A #GDBusProxyTypeFunc function or %NULL to always construct #GDBusProxy proxies.
|
||
* @get_proxy_type_user_data: User data to pass to @get_proxy_type_func.
|
||
* @get_proxy_type_destroy_notify: (allow-none): Free function for @get_proxy_type_user_data or %NULL.
|
||
* @cancellable: (allow-none): A #GCancellable or %NULL
|
||
* @callback: A #GAsyncReadyCallback to call when the request is satisfied.
|
||
* @user_data: The data to pass to @callback.
|
||
*
|
||
* Like g_dbus_object_manager_client_new() but takes a #GBusType instead of a
|
||
* #GDBusConnection.
|
||
*
|
||
* This is an asynchronous failable constructor. When the result is
|
||
* ready, @callback will be invoked in the
|
||
* <link linkend="g-main-context-push-thread-default">thread-default main loop</link>
|
||
* of the thread you are calling this method from. You can
|
||
* then call g_dbus_object_manager_client_new_for_bus_finish() to get the result. See
|
||
* g_dbus_object_manager_client_new_for_bus_sync() for the synchronous version.
|
||
*
|
||
* Since: 2.30
|
||
*/
|
||
void
|
||
g_dbus_object_manager_client_new_for_bus (GBusType bus_type,
|
||
GDBusObjectManagerClientFlags flags,
|
||
const gchar *name,
|
||
const gchar *object_path,
|
||
GDBusProxyTypeFunc get_proxy_type_func,
|
||
gpointer get_proxy_type_user_data,
|
||
GDestroyNotify get_proxy_type_destroy_notify,
|
||
GCancellable *cancellable,
|
||
GAsyncReadyCallback callback,
|
||
gpointer user_data)
|
||
{
|
||
g_return_if_fail (bus_type != G_BUS_TYPE_NONE);
|
||
g_return_if_fail (g_dbus_is_name (name));
|
||
g_return_if_fail (g_variant_is_object_path (object_path));
|
||
|
||
g_async_initable_new_async (G_TYPE_DBUS_OBJECT_MANAGER_CLIENT,
|
||
G_PRIORITY_DEFAULT,
|
||
cancellable,
|
||
callback,
|
||
user_data,
|
||
"bus-type", bus_type,
|
||
"flags", flags,
|
||
"name", name,
|
||
"object-path", object_path,
|
||
"get-proxy-type-func", get_proxy_type_func,
|
||
"get-proxy-type-user-data", get_proxy_type_user_data,
|
||
"get-proxy-type-destroy-notify", get_proxy_type_destroy_notify,
|
||
NULL);
|
||
}
|
||
|
||
/**
|
||
* g_dbus_object_manager_client_new_for_bus_finish:
|
||
* @res: A #GAsyncResult obtained from the #GAsyncReadyCallback passed to g_dbus_object_manager_client_new_for_bus().
|
||
* @error: Return location for error or %NULL.
|
||
*
|
||
* Finishes an operation started with g_dbus_object_manager_client_new_for_bus().
|
||
*
|
||
* Returns: (transfer full) (type GDBusObjectManagerClient): A
|
||
* #GDBusObjectManagerClient object or %NULL if @error is set. Free
|
||
* with g_object_unref().
|
||
*
|
||
* Since: 2.30
|
||
*/
|
||
GDBusObjectManager *
|
||
g_dbus_object_manager_client_new_for_bus_finish (GAsyncResult *res,
|
||
GError **error)
|
||
{
|
||
GObject *object;
|
||
GObject *source_object;
|
||
|
||
source_object = g_async_result_get_source_object (res);
|
||
g_assert (source_object != NULL);
|
||
|
||
object = g_async_initable_new_finish (G_ASYNC_INITABLE (source_object),
|
||
res,
|
||
error);
|
||
g_object_unref (source_object);
|
||
|
||
if (object != NULL)
|
||
return G_DBUS_OBJECT_MANAGER (object);
|
||
else
|
||
return NULL;
|
||
}
|
||
|
||
/* ---------------------------------------------------------------------------------------------------- */
|
||
|
||
/**
|
||
* g_dbus_object_manager_client_get_connection:
|
||
* @manager: A #GDBusObjectManagerClient
|
||
*
|
||
* Gets the #GDBusConnection used by @manager.
|
||
*
|
||
* Returns: (transfer none): A #GDBusConnection object. Do not free,
|
||
* the object belongs to @manager.
|
||
*
|
||
* Since: 2.30
|
||
*/
|
||
GDBusConnection *
|
||
g_dbus_object_manager_client_get_connection (GDBusObjectManagerClient *manager)
|
||
{
|
||
GDBusConnection *ret;
|
||
g_return_val_if_fail (G_IS_DBUS_OBJECT_MANAGER_CLIENT (manager), NULL);
|
||
g_mutex_lock (&manager->priv->lock);
|
||
ret = manager->priv->connection;
|
||
g_mutex_unlock (&manager->priv->lock);
|
||
return ret;
|
||
}
|
||
|
||
/**
|
||
* g_dbus_object_manager_client_get_name:
|
||
* @manager: A #GDBusObjectManagerClient
|
||
*
|
||
* Gets the name that @manager is for, or %NULL if not a message bus
|
||
* connection.
|
||
*
|
||
* Returns: A unique or well-known name. Do not free, the string
|
||
* belongs to @manager.
|
||
*
|
||
* Since: 2.30
|
||
*/
|
||
const gchar *
|
||
g_dbus_object_manager_client_get_name (GDBusObjectManagerClient *manager)
|
||
{
|
||
const gchar *ret;
|
||
g_return_val_if_fail (G_IS_DBUS_OBJECT_MANAGER_CLIENT (manager), NULL);
|
||
g_mutex_lock (&manager->priv->lock);
|
||
ret = manager->priv->name;
|
||
g_mutex_unlock (&manager->priv->lock);
|
||
return ret;
|
||
}
|
||
|
||
/**
|
||
* g_dbus_object_manager_client_get_flags:
|
||
* @manager: A #GDBusObjectManagerClient
|
||
*
|
||
* Gets the flags that @manager was constructed with.
|
||
*
|
||
* Returns: Zero of more flags from the #GDBusObjectManagerClientFlags
|
||
* enumeration.
|
||
*
|
||
* Since: 2.30
|
||
*/
|
||
GDBusObjectManagerClientFlags
|
||
g_dbus_object_manager_client_get_flags (GDBusObjectManagerClient *manager)
|
||
{
|
||
GDBusObjectManagerClientFlags ret;
|
||
g_return_val_if_fail (G_IS_DBUS_OBJECT_MANAGER_CLIENT (manager), G_DBUS_OBJECT_MANAGER_CLIENT_FLAGS_NONE);
|
||
g_mutex_lock (&manager->priv->lock);
|
||
ret = manager->priv->flags;
|
||
g_mutex_unlock (&manager->priv->lock);
|
||
return ret;
|
||
}
|
||
|
||
/**
|
||
* g_dbus_object_manager_client_get_name_owner:
|
||
* @manager: A #GDBusObjectManagerClient.
|
||
*
|
||
* The unique name that owns the name that @manager is for or %NULL if
|
||
* no-one currently owns that name. You can connect to the
|
||
* #GObject::notify signal to track changes to the
|
||
* #GDBusObjectManagerClient:name-owner property.
|
||
*
|
||
* Returns: The name owner or %NULL if no name owner exists. Free with
|
||
* g_free().
|
||
*
|
||
* Since: 2.30
|
||
*/
|
||
gchar *
|
||
g_dbus_object_manager_client_get_name_owner (GDBusObjectManagerClient *manager)
|
||
{
|
||
gchar *ret;
|
||
g_return_val_if_fail (G_IS_DBUS_OBJECT_MANAGER_CLIENT (manager), NULL);
|
||
g_mutex_lock (&manager->priv->lock);
|
||
ret = g_strdup (manager->priv->name_owner);
|
||
g_mutex_unlock (&manager->priv->lock);
|
||
return ret;
|
||
}
|
||
|
||
/* ---------------------------------------------------------------------------------------------------- */
|
||
|
||
/* signal handler for all objects we manage - we dispatch signals
|
||
* from here to the objects
|
||
*/
|
||
static void
|
||
signal_cb (GDBusConnection *connection,
|
||
const gchar *sender_name,
|
||
const gchar *object_path,
|
||
const gchar *interface_name,
|
||
const gchar *signal_name,
|
||
GVariant *parameters,
|
||
gpointer user_data)
|
||
{
|
||
GDBusObjectManagerClient *manager = G_DBUS_OBJECT_MANAGER_CLIENT (user_data);
|
||
GDBusObjectProxy *object_proxy;
|
||
GDBusInterface *interface;
|
||
|
||
g_mutex_lock (&manager->priv->lock);
|
||
object_proxy = g_hash_table_lookup (manager->priv->map_object_path_to_object_proxy, object_path);
|
||
if (object_proxy == NULL)
|
||
{
|
||
g_mutex_unlock (&manager->priv->lock);
|
||
goto out;
|
||
}
|
||
g_object_ref (object_proxy);
|
||
g_mutex_unlock (&manager->priv->lock);
|
||
|
||
//g_debug ("yay, signal_cb %s %s: %s\n", signal_name, object_path, g_variant_print (parameters, TRUE));
|
||
|
||
if (g_strcmp0 (interface_name, "org.freedesktop.DBus.Properties") == 0)
|
||
{
|
||
if (g_strcmp0 (signal_name, "PropertiesChanged") == 0)
|
||
{
|
||
const gchar *interface_name;
|
||
GVariant *changed_properties;
|
||
const gchar **invalidated_properties;
|
||
|
||
g_variant_get (parameters,
|
||
"(&s@a{sv}^a&s)",
|
||
&interface_name,
|
||
&changed_properties,
|
||
&invalidated_properties);
|
||
|
||
interface = g_dbus_object_get_interface (G_DBUS_OBJECT (object_proxy), interface_name);
|
||
if (interface != NULL)
|
||
{
|
||
GVariantIter property_iter;
|
||
const gchar *property_name;
|
||
GVariant *property_value;
|
||
guint n;
|
||
|
||
/* update caches... */
|
||
g_variant_iter_init (&property_iter, changed_properties);
|
||
while (g_variant_iter_next (&property_iter,
|
||
"{&sv}",
|
||
&property_name,
|
||
&property_value))
|
||
{
|
||
g_dbus_proxy_set_cached_property (G_DBUS_PROXY (interface),
|
||
property_name,
|
||
property_value);
|
||
g_variant_unref (property_value);
|
||
}
|
||
|
||
for (n = 0; invalidated_properties[n] != NULL; n++)
|
||
{
|
||
g_dbus_proxy_set_cached_property (G_DBUS_PROXY (interface),
|
||
invalidated_properties[n],
|
||
NULL);
|
||
}
|
||
/* ... and then synthesize the signal */
|
||
g_signal_emit_by_name (interface,
|
||
"g-properties-changed",
|
||
changed_properties,
|
||
invalidated_properties);
|
||
g_signal_emit (manager,
|
||
signals[INTERFACE_PROXY_PROPERTIES_CHANGED_SIGNAL],
|
||
0,
|
||
object_proxy,
|
||
interface,
|
||
changed_properties,
|
||
invalidated_properties);
|
||
g_object_unref (interface);
|
||
}
|
||
g_variant_unref (changed_properties);
|
||
g_free (invalidated_properties);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
/* regular signal - just dispatch it */
|
||
interface = g_dbus_object_get_interface (G_DBUS_OBJECT (object_proxy), interface_name);
|
||
if (interface != NULL)
|
||
{
|
||
g_signal_emit_by_name (interface,
|
||
"g-signal",
|
||
sender_name,
|
||
signal_name,
|
||
parameters);
|
||
g_signal_emit (manager,
|
||
signals[INTERFACE_PROXY_SIGNAL_SIGNAL],
|
||
0,
|
||
object_proxy,
|
||
interface,
|
||
sender_name,
|
||
signal_name,
|
||
parameters);
|
||
g_object_unref (interface);
|
||
}
|
||
}
|
||
|
||
out:
|
||
g_clear_object (&object_proxy);
|
||
}
|
||
|
||
static void
|
||
subscribe_signals (GDBusObjectManagerClient *manager,
|
||
const gchar *name_owner)
|
||
{
|
||
GError *error = NULL;
|
||
GVariant *ret;
|
||
|
||
g_return_if_fail (G_IS_DBUS_OBJECT_MANAGER_CLIENT (manager));
|
||
g_return_if_fail (manager->priv->signal_subscription_id == 0);
|
||
g_return_if_fail (name_owner == NULL || g_dbus_is_unique_name (name_owner));
|
||
|
||
if (name_owner != NULL)
|
||
{
|
||
/* Only add path_namespace if it's non-'/'. This removes a no-op key from
|
||
* the match rule, and also works around a D-Bus bug where
|
||
* path_namespace='/' matches nothing in D-Bus versions < 1.6.18.
|
||
*
|
||
* See: https://bugs.freedesktop.org/show_bug.cgi?id=70799 */
|
||
if (g_str_equal (manager->priv->object_path, "/"))
|
||
{
|
||
manager->priv->match_rule = g_strdup_printf ("type='signal',sender='%s'",
|
||
name_owner);
|
||
}
|
||
else
|
||
{
|
||
manager->priv->match_rule = g_strdup_printf ("type='signal',sender='%s',path_namespace='%s'",
|
||
name_owner, manager->priv->object_path);
|
||
}
|
||
|
||
/* The bus daemon may not implement path_namespace so gracefully
|
||
* handle this by using a fallback triggered if @error is set. */
|
||
ret = g_dbus_connection_call_sync (manager->priv->connection,
|
||
"org.freedesktop.DBus",
|
||
"/org/freedesktop/DBus",
|
||
"org.freedesktop.DBus",
|
||
"AddMatch",
|
||
g_variant_new ("(s)",
|
||
manager->priv->match_rule),
|
||
NULL, /* reply_type */
|
||
G_DBUS_CALL_FLAGS_NONE,
|
||
-1, /* default timeout */
|
||
NULL, /* TODO: Cancellable */
|
||
&error);
|
||
|
||
/* yay, bus daemon supports path_namespace */
|
||
if (ret != NULL)
|
||
g_variant_unref (ret);
|
||
}
|
||
|
||
if (error == NULL)
|
||
{
|
||
/* still need to ask GDBusConnection for the callbacks */
|
||
manager->priv->signal_subscription_id =
|
||
g_dbus_connection_signal_subscribe (manager->priv->connection,
|
||
name_owner,
|
||
NULL, /* interface */
|
||
NULL, /* member */
|
||
NULL, /* path - TODO: really want wilcard support here */
|
||
NULL, /* arg0 */
|
||
G_DBUS_SIGNAL_FLAGS_NONE |
|
||
G_DBUS_SIGNAL_FLAGS_NO_MATCH_RULE,
|
||
signal_cb,
|
||
manager,
|
||
NULL); /* user_data_free_func */
|
||
|
||
}
|
||
else
|
||
{
|
||
/* TODO: we could report this to the user
|
||
g_warning ("Message bus daemon does not support path_namespace: %s (%s %d)",
|
||
error->message,
|
||
g_quark_to_string (error->domain),
|
||
error->code);
|
||
*/
|
||
|
||
g_error_free (error);
|
||
|
||
/* no need to call RemoveMatch when done since it didn't work */
|
||
g_free (manager->priv->match_rule);
|
||
manager->priv->match_rule = NULL;
|
||
|
||
/* Fallback is to subscribe to *all* signals from the name owner which
|
||
* is rather wasteful. It's probably not a big practical problem because
|
||
* users typically want all objects that the name owner supplies.
|
||
*/
|
||
manager->priv->signal_subscription_id =
|
||
g_dbus_connection_signal_subscribe (manager->priv->connection,
|
||
name_owner,
|
||
NULL, /* interface */
|
||
NULL, /* member */
|
||
NULL, /* path - TODO: really want wilcard support here */
|
||
NULL, /* arg0 */
|
||
G_DBUS_SIGNAL_FLAGS_NONE,
|
||
signal_cb,
|
||
manager,
|
||
NULL); /* user_data_free_func */
|
||
}
|
||
}
|
||
|
||
static void
|
||
maybe_unsubscribe_signals (GDBusObjectManagerClient *manager)
|
||
{
|
||
g_return_if_fail (G_IS_DBUS_OBJECT_MANAGER_CLIENT (manager));
|
||
|
||
if (manager->priv->signal_subscription_id > 0)
|
||
{
|
||
g_dbus_connection_signal_unsubscribe (manager->priv->connection,
|
||
manager->priv->signal_subscription_id);
|
||
manager->priv->signal_subscription_id = 0;
|
||
}
|
||
|
||
if (manager->priv->match_rule != NULL)
|
||
{
|
||
/* Since the AddMatch call succeeded this is guaranteed to not
|
||
* fail - therefore, don't bother checking the return value
|
||
*/
|
||
g_dbus_connection_call (manager->priv->connection,
|
||
"org.freedesktop.DBus",
|
||
"/org/freedesktop/DBus",
|
||
"org.freedesktop.DBus",
|
||
"RemoveMatch",
|
||
g_variant_new ("(s)",
|
||
manager->priv->match_rule),
|
||
NULL, /* reply_type */
|
||
G_DBUS_CALL_FLAGS_NONE,
|
||
-1, /* default timeout */
|
||
NULL, /* GCancellable */
|
||
NULL, /* GAsyncReadyCallback */
|
||
NULL); /* user data */
|
||
g_free (manager->priv->match_rule);
|
||
manager->priv->match_rule = NULL;
|
||
}
|
||
|
||
}
|
||
|
||
/* ---------------------------------------------------------------------------------------------------- */
|
||
|
||
static void
|
||
on_notify_g_name_owner (GObject *object,
|
||
GParamSpec *pspec,
|
||
gpointer user_data)
|
||
{
|
||
GDBusObjectManagerClient *manager = G_DBUS_OBJECT_MANAGER_CLIENT (user_data);
|
||
gchar *old_name_owner;
|
||
gchar *new_name_owner;
|
||
|
||
g_mutex_lock (&manager->priv->lock);
|
||
old_name_owner = manager->priv->name_owner;
|
||
new_name_owner = g_dbus_proxy_get_name_owner (manager->priv->control_proxy);
|
||
manager->priv->name_owner = NULL;
|
||
|
||
if (g_strcmp0 (old_name_owner, new_name_owner) != 0)
|
||
{
|
||
GList *l;
|
||
GList *proxies;
|
||
|
||
/* remote manager changed; nuke all local proxies */
|
||
proxies = g_hash_table_get_values (manager->priv->map_object_path_to_object_proxy);
|
||
g_list_foreach (proxies, (GFunc) g_object_ref, NULL);
|
||
g_hash_table_remove_all (manager->priv->map_object_path_to_object_proxy);
|
||
|
||
g_mutex_unlock (&manager->priv->lock);
|
||
|
||
/* do the :name-owner notify with a NULL name - this way the user knows
|
||
* the ::object-proxy-removed following is because the name owner went
|
||
* away
|
||
*/
|
||
g_object_notify (G_OBJECT (manager), "name-owner");
|
||
|
||
for (l = proxies; l != NULL; l = l->next)
|
||
{
|
||
GDBusObjectProxy *object_proxy = G_DBUS_OBJECT_PROXY (l->data);
|
||
g_signal_emit_by_name (manager, "object-removed", object_proxy);
|
||
}
|
||
g_list_free_full (proxies, g_object_unref);
|
||
|
||
/* nuke local filter */
|
||
maybe_unsubscribe_signals (manager);
|
||
}
|
||
else
|
||
{
|
||
g_mutex_unlock (&manager->priv->lock);
|
||
}
|
||
|
||
if (new_name_owner != NULL)
|
||
{
|
||
GError *error;
|
||
GVariant *value;
|
||
|
||
//g_debug ("repopulating for %s", new_name_owner);
|
||
|
||
/* TODO: do this async! */
|
||
subscribe_signals (manager,
|
||
new_name_owner);
|
||
error = NULL;
|
||
value = g_dbus_proxy_call_sync (manager->priv->control_proxy,
|
||
"GetManagedObjects",
|
||
NULL, /* parameters */
|
||
G_DBUS_CALL_FLAGS_NONE,
|
||
-1,
|
||
NULL,
|
||
&error);
|
||
if (value == NULL)
|
||
{
|
||
maybe_unsubscribe_signals (manager);
|
||
g_warning ("Error calling GetManagedObjects() when name owner %s for name %s came back: %s",
|
||
new_name_owner,
|
||
manager->priv->name,
|
||
error->message);
|
||
g_error_free (error);
|
||
}
|
||
else
|
||
{
|
||
process_get_all_result (manager, value, new_name_owner);
|
||
g_variant_unref (value);
|
||
}
|
||
|
||
/* do the :name-owner notify *AFTER* emitting ::object-proxy-added signals - this
|
||
* way the user knows that the signals were emitted because the name owner came back
|
||
*/
|
||
g_mutex_lock (&manager->priv->lock);
|
||
manager->priv->name_owner = new_name_owner;
|
||
g_mutex_unlock (&manager->priv->lock);
|
||
g_object_notify (G_OBJECT (manager), "name-owner");
|
||
|
||
}
|
||
g_free (old_name_owner);
|
||
}
|
||
|
||
static gboolean
|
||
initable_init (GInitable *initable,
|
||
GCancellable *cancellable,
|
||
GError **error)
|
||
{
|
||
GDBusObjectManagerClient *manager = G_DBUS_OBJECT_MANAGER_CLIENT (initable);
|
||
gboolean ret;
|
||
GVariant *value;
|
||
GDBusProxyFlags proxy_flags;
|
||
|
||
ret = FALSE;
|
||
|
||
if (manager->priv->bus_type != G_BUS_TYPE_NONE)
|
||
{
|
||
g_assert (manager->priv->connection == NULL);
|
||
manager->priv->connection = g_bus_get_sync (manager->priv->bus_type, cancellable, error);
|
||
if (manager->priv->connection == NULL)
|
||
goto out;
|
||
}
|
||
|
||
proxy_flags = G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES;
|
||
if (manager->priv->flags & G_DBUS_OBJECT_MANAGER_CLIENT_FLAGS_DO_NOT_AUTO_START)
|
||
proxy_flags |= G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START;
|
||
|
||
manager->priv->control_proxy = g_dbus_proxy_new_sync (manager->priv->connection,
|
||
proxy_flags,
|
||
NULL, /* GDBusInterfaceInfo* */
|
||
manager->priv->name,
|
||
manager->priv->object_path,
|
||
"org.freedesktop.DBus.ObjectManager",
|
||
cancellable,
|
||
error);
|
||
if (manager->priv->control_proxy == NULL)
|
||
goto out;
|
||
|
||
g_signal_connect (G_OBJECT (manager->priv->control_proxy),
|
||
"notify::g-name-owner",
|
||
G_CALLBACK (on_notify_g_name_owner),
|
||
manager);
|
||
|
||
g_signal_connect (manager->priv->control_proxy,
|
||
"g-signal",
|
||
G_CALLBACK (on_control_proxy_g_signal),
|
||
manager);
|
||
|
||
manager->priv->name_owner = g_dbus_proxy_get_name_owner (manager->priv->control_proxy);
|
||
if (manager->priv->name_owner == NULL && manager->priv->name != NULL)
|
||
{
|
||
/* it's perfectly fine if there's no name owner.. we're just going to
|
||
* wait until one is ready
|
||
*/
|
||
}
|
||
else
|
||
{
|
||
/* yay, we can get the objects */
|
||
subscribe_signals (manager,
|
||
manager->priv->name_owner);
|
||
value = g_dbus_proxy_call_sync (manager->priv->control_proxy,
|
||
"GetManagedObjects",
|
||
NULL, /* parameters */
|
||
G_DBUS_CALL_FLAGS_NONE,
|
||
-1,
|
||
cancellable,
|
||
error);
|
||
if (value == NULL)
|
||
{
|
||
maybe_unsubscribe_signals (manager);
|
||
g_warn_if_fail (g_signal_handlers_disconnect_by_func (manager->priv->control_proxy,
|
||
on_control_proxy_g_signal,
|
||
manager) == 1);
|
||
g_object_unref (manager->priv->control_proxy);
|
||
manager->priv->control_proxy = NULL;
|
||
goto out;
|
||
}
|
||
|
||
process_get_all_result (manager, value, manager->priv->name_owner);
|
||
g_variant_unref (value);
|
||
}
|
||
|
||
ret = TRUE;
|
||
|
||
out:
|
||
return ret;
|
||
}
|
||
|
||
static void
|
||
initable_iface_init (GInitableIface *initable_iface)
|
||
{
|
||
initable_iface->init = initable_init;
|
||
}
|
||
|
||
static void
|
||
async_initable_iface_init (GAsyncInitableIface *async_initable_iface)
|
||
{
|
||
/* for now, just use default: run GInitable code in thread */
|
||
}
|
||
|
||
/* ---------------------------------------------------------------------------------------------------- */
|
||
|
||
static void
|
||
add_interfaces (GDBusObjectManagerClient *manager,
|
||
const gchar *object_path,
|
||
GVariant *ifaces_and_properties,
|
||
const gchar *name_owner)
|
||
{
|
||
GDBusObjectProxy *op;
|
||
gboolean added;
|
||
GVariantIter iter;
|
||
const gchar *interface_name;
|
||
GVariant *properties;
|
||
GList *interface_added_signals, *l;
|
||
GDBusProxy *interface_proxy;
|
||
|
||
g_return_if_fail (name_owner == NULL || g_dbus_is_unique_name (name_owner));
|
||
|
||
g_mutex_lock (&manager->priv->lock);
|
||
|
||
interface_added_signals = NULL;
|
||
added = FALSE;
|
||
|
||
op = g_hash_table_lookup (manager->priv->map_object_path_to_object_proxy, object_path);
|
||
if (op == NULL)
|
||
{
|
||
GType object_proxy_type;
|
||
if (manager->priv->get_proxy_type_func != NULL)
|
||
{
|
||
object_proxy_type = manager->priv->get_proxy_type_func (manager,
|
||
object_path,
|
||
NULL,
|
||
manager->priv->get_proxy_type_user_data);
|
||
g_warn_if_fail (g_type_is_a (object_proxy_type, G_TYPE_DBUS_OBJECT_PROXY));
|
||
}
|
||
else
|
||
{
|
||
object_proxy_type = G_TYPE_DBUS_OBJECT_PROXY;
|
||
}
|
||
op = g_object_new (object_proxy_type,
|
||
"g-connection", manager->priv->connection,
|
||
"g-object-path", object_path,
|
||
NULL);
|
||
added = TRUE;
|
||
}
|
||
g_object_ref (op);
|
||
|
||
g_variant_iter_init (&iter, ifaces_and_properties);
|
||
while (g_variant_iter_next (&iter,
|
||
"{&s@a{sv}}",
|
||
&interface_name,
|
||
&properties))
|
||
{
|
||
GError *error;
|
||
GType interface_proxy_type;
|
||
|
||
if (manager->priv->get_proxy_type_func != NULL)
|
||
{
|
||
interface_proxy_type = manager->priv->get_proxy_type_func (manager,
|
||
object_path,
|
||
interface_name,
|
||
manager->priv->get_proxy_type_user_data);
|
||
g_warn_if_fail (g_type_is_a (interface_proxy_type, G_TYPE_DBUS_PROXY));
|
||
}
|
||
else
|
||
{
|
||
interface_proxy_type = G_TYPE_DBUS_PROXY;
|
||
}
|
||
|
||
/* this is fine - there is no blocking IO because we pass DO_NOT_LOAD_PROPERTIES and
|
||
* DO_NOT_CONNECT_SIGNALS and use a unique name
|
||
*/
|
||
error = NULL;
|
||
interface_proxy = g_initable_new (interface_proxy_type,
|
||
NULL, /* GCancellable */
|
||
&error,
|
||
"g-connection", manager->priv->connection,
|
||
"g-flags", G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES |
|
||
G_DBUS_PROXY_FLAGS_DO_NOT_CONNECT_SIGNALS,
|
||
"g-name", name_owner,
|
||
"g-object-path", object_path,
|
||
"g-interface-name", interface_name,
|
||
NULL);
|
||
if (interface_proxy == NULL)
|
||
{
|
||
g_warning ("%s: Error constructing proxy for path %s and interface %s: %s",
|
||
G_STRLOC,
|
||
object_path,
|
||
interface_name,
|
||
error->message);
|
||
g_error_free (error);
|
||
}
|
||
else
|
||
{
|
||
GVariantIter property_iter;
|
||
const gchar *property_name;
|
||
GVariant *property_value;
|
||
|
||
/* associate the interface proxy with the object */
|
||
g_dbus_interface_set_object (G_DBUS_INTERFACE (interface_proxy),
|
||
G_DBUS_OBJECT (op));
|
||
|
||
g_variant_iter_init (&property_iter, properties);
|
||
while (g_variant_iter_next (&property_iter,
|
||
"{&sv}",
|
||
&property_name,
|
||
&property_value))
|
||
{
|
||
g_dbus_proxy_set_cached_property (interface_proxy,
|
||
property_name,
|
||
property_value);
|
||
g_variant_unref (property_value);
|
||
}
|
||
|
||
_g_dbus_object_proxy_add_interface (op, interface_proxy);
|
||
if (!added)
|
||
interface_added_signals = g_list_append (interface_added_signals, g_object_ref (interface_proxy));
|
||
g_object_unref (interface_proxy);
|
||
}
|
||
g_variant_unref (properties);
|
||
}
|
||
|
||
g_mutex_unlock (&manager->priv->lock);
|
||
|
||
/* now that we don't hold the lock any more, emit signals */
|
||
for (l = interface_added_signals; l != NULL; l = l->next)
|
||
{
|
||
interface_proxy = G_DBUS_PROXY (l->data);
|
||
g_signal_emit_by_name (manager, "interface-added", op, interface_proxy);
|
||
g_object_unref (interface_proxy);
|
||
}
|
||
g_list_free (interface_added_signals);
|
||
|
||
if (added)
|
||
{
|
||
g_hash_table_insert (manager->priv->map_object_path_to_object_proxy,
|
||
g_strdup (object_path),
|
||
op);
|
||
g_signal_emit_by_name (manager, "object-added", op);
|
||
}
|
||
g_object_unref (op);
|
||
|
||
}
|
||
|
||
static void
|
||
remove_interfaces (GDBusObjectManagerClient *manager,
|
||
const gchar *object_path,
|
||
const gchar *const *interface_names)
|
||
{
|
||
GDBusObjectProxy *op;
|
||
GList *interfaces;
|
||
guint n;
|
||
guint num_interfaces;
|
||
guint num_interfaces_to_remove;
|
||
|
||
g_mutex_lock (&manager->priv->lock);
|
||
|
||
op = g_hash_table_lookup (manager->priv->map_object_path_to_object_proxy, object_path);
|
||
if (op == NULL)
|
||
{
|
||
g_warning ("%s: Processing InterfaceRemoved signal for path %s but no object proxy exists",
|
||
G_STRLOC,
|
||
object_path);
|
||
g_mutex_unlock (&manager->priv->lock);
|
||
goto out;
|
||
}
|
||
|
||
interfaces = g_dbus_object_get_interfaces (G_DBUS_OBJECT (op));
|
||
num_interfaces = g_list_length (interfaces);
|
||
g_list_free_full (interfaces, g_object_unref);
|
||
|
||
num_interfaces_to_remove = g_strv_length ((gchar **) interface_names);
|
||
|
||
/* see if we are going to completety remove the object */
|
||
if (num_interfaces_to_remove == num_interfaces)
|
||
{
|
||
g_object_ref (op);
|
||
g_warn_if_fail (g_hash_table_remove (manager->priv->map_object_path_to_object_proxy, object_path));
|
||
g_mutex_unlock (&manager->priv->lock);
|
||
g_signal_emit_by_name (manager, "object-removed", op);
|
||
g_object_unref (op);
|
||
}
|
||
else
|
||
{
|
||
g_object_ref (op);
|
||
g_mutex_unlock (&manager->priv->lock);
|
||
for (n = 0; interface_names != NULL && interface_names[n] != NULL; n++)
|
||
{
|
||
GDBusInterface *interface;
|
||
interface = g_dbus_object_get_interface (G_DBUS_OBJECT (op), interface_names[n]);
|
||
_g_dbus_object_proxy_remove_interface (op, interface_names[n]);
|
||
if (interface != NULL)
|
||
{
|
||
g_signal_emit_by_name (manager, "interface-removed", op, interface);
|
||
g_object_unref (interface);
|
||
}
|
||
}
|
||
g_object_unref (op);
|
||
}
|
||
out:
|
||
;
|
||
}
|
||
|
||
static void
|
||
process_get_all_result (GDBusObjectManagerClient *manager,
|
||
GVariant *value,
|
||
const gchar *name_owner)
|
||
{
|
||
GVariant *arg0;
|
||
const gchar *object_path;
|
||
GVariant *ifaces_and_properties;
|
||
GVariantIter iter;
|
||
|
||
g_return_if_fail (name_owner == NULL || g_dbus_is_unique_name (name_owner));
|
||
|
||
arg0 = g_variant_get_child_value (value, 0);
|
||
g_variant_iter_init (&iter, arg0);
|
||
while (g_variant_iter_next (&iter,
|
||
"{&o@a{sa{sv}}}",
|
||
&object_path,
|
||
&ifaces_and_properties))
|
||
{
|
||
add_interfaces (manager, object_path, ifaces_and_properties, name_owner);
|
||
g_variant_unref (ifaces_and_properties);
|
||
}
|
||
g_variant_unref (arg0);
|
||
}
|
||
|
||
static void
|
||
on_control_proxy_g_signal (GDBusProxy *proxy,
|
||
const gchar *sender_name,
|
||
const gchar *signal_name,
|
||
GVariant *parameters,
|
||
gpointer user_data)
|
||
{
|
||
GDBusObjectManagerClient *manager = G_DBUS_OBJECT_MANAGER_CLIENT (user_data);
|
||
const gchar *object_path;
|
||
|
||
//g_debug ("yay, g_signal %s: %s\n", signal_name, g_variant_print (parameters, TRUE));
|
||
|
||
if (g_strcmp0 (signal_name, "InterfacesAdded") == 0)
|
||
{
|
||
GVariant *ifaces_and_properties;
|
||
g_variant_get (parameters,
|
||
"(&o@a{sa{sv}})",
|
||
&object_path,
|
||
&ifaces_and_properties);
|
||
add_interfaces (manager, object_path, ifaces_and_properties, manager->priv->name_owner);
|
||
g_variant_unref (ifaces_and_properties);
|
||
}
|
||
else if (g_strcmp0 (signal_name, "InterfacesRemoved") == 0)
|
||
{
|
||
const gchar **ifaces;
|
||
g_variant_get (parameters,
|
||
"(&o^a&s)",
|
||
&object_path,
|
||
&ifaces);
|
||
remove_interfaces (manager, object_path, ifaces);
|
||
g_free (ifaces);
|
||
}
|
||
}
|
||
|
||
/* ---------------------------------------------------------------------------------------------------- */
|
||
|
||
static const gchar *
|
||
g_dbus_object_manager_client_get_object_path (GDBusObjectManager *_manager)
|
||
{
|
||
GDBusObjectManagerClient *manager = G_DBUS_OBJECT_MANAGER_CLIENT (_manager);
|
||
return manager->priv->object_path;
|
||
}
|
||
|
||
static GDBusObject *
|
||
g_dbus_object_manager_client_get_object (GDBusObjectManager *_manager,
|
||
const gchar *object_path)
|
||
{
|
||
GDBusObjectManagerClient *manager = G_DBUS_OBJECT_MANAGER_CLIENT (_manager);
|
||
GDBusObject *ret;
|
||
|
||
g_mutex_lock (&manager->priv->lock);
|
||
ret = g_hash_table_lookup (manager->priv->map_object_path_to_object_proxy, object_path);
|
||
if (ret != NULL)
|
||
g_object_ref (ret);
|
||
g_mutex_unlock (&manager->priv->lock);
|
||
return ret;
|
||
}
|
||
|
||
static GDBusInterface *
|
||
g_dbus_object_manager_client_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 GList *
|
||
g_dbus_object_manager_client_get_objects (GDBusObjectManager *_manager)
|
||
{
|
||
GDBusObjectManagerClient *manager = G_DBUS_OBJECT_MANAGER_CLIENT (_manager);
|
||
GList *ret;
|
||
|
||
g_return_val_if_fail (G_IS_DBUS_OBJECT_MANAGER_CLIENT (manager), NULL);
|
||
|
||
g_mutex_lock (&manager->priv->lock);
|
||
ret = g_hash_table_get_values (manager->priv->map_object_path_to_object_proxy);
|
||
g_list_foreach (ret, (GFunc) g_object_ref, NULL);
|
||
g_mutex_unlock (&manager->priv->lock);
|
||
|
||
return ret;
|
||
}
|
||
|
||
|
||
static void
|
||
dbus_object_manager_interface_init (GDBusObjectManagerIface *iface)
|
||
{
|
||
iface->get_object_path = g_dbus_object_manager_client_get_object_path;
|
||
iface->get_objects = g_dbus_object_manager_client_get_objects;
|
||
iface->get_object = g_dbus_object_manager_client_get_object;
|
||
iface->get_interface = g_dbus_object_manager_client_get_interface;
|
||
}
|
||
|
||
/* ---------------------------------------------------------------------------------------------------- */
|