glib/gio/gdbusproxy.h
David Zeuthen f909cb5b27 GDBusProxy: Remove error in get_cached_property() and add set_cached_property()
This makes it possible to use the cached properties mechanism even if
constructing the proxy with the DO_NOT_LOAD_PROPERTIES flag.

This is useful for cases where you obtain the and track object
properties out-of-band. For example, in udisks, the plan is to have
something like this

 Manager.GetObjects    (out ao paths, out aa{sa{sv}} all_properties);
 Manager.ObjectAdded   (o path, a{sa{sv}} all_properties);
 Manager.ObjectChanged (o path, a{sa{sv}} all_properties);
 Manager.ObjectRemoved (o path, a{sa{sv}} all_properties);

E.g. the first GetObjects() call will return *all* data about *all*
exported objects. Further, this way a client will only need to listen
these three signals (three AddMatch) on the Manager object and it will
never need to do GetAll() etc (e.g. can use DO_NOT_LOAD_PROPERTIES).

(Of course this only works if the client is interested in all
objects... while this is true for udisks it is generally not true for
other D-Bus services).

Also use expected_interface to check for programming errors.
2010-05-12 20:51:06 -04:00

153 lines
7.9 KiB
C

/* GDBus - GLib D-Bus Library
*
* Copyright (C) 2008-2010 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General
* Public License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
* Boston, MA 02111-1307, USA.
*
* Author: David Zeuthen <davidz@redhat.com>
*/
#ifndef __G_DBUS_PROXY_H__
#define __G_DBUS_PROXY_H__
#include <gio/giotypes.h>
#include <gio/gdbusintrospection.h>
G_BEGIN_DECLS
#define G_TYPE_DBUS_PROXY (g_dbus_proxy_get_type ())
#define G_DBUS_PROXY(o) (G_TYPE_CHECK_INSTANCE_CAST ((o), G_TYPE_DBUS_PROXY, GDBusProxy))
#define G_DBUS_PROXY_CLASS(k) (G_TYPE_CHECK_CLASS_CAST((k), G_TYPE_DBUS_PROXY, GDBusProxyClass))
#define G_DBUS_PROXY_GET_CLASS(o) (G_TYPE_INSTANCE_GET_CLASS ((o), G_TYPE_DBUS_PROXY, GDBusProxyClass))
#define G_IS_DBUS_PROXY(o) (G_TYPE_CHECK_INSTANCE_TYPE ((o), G_TYPE_DBUS_PROXY))
#define G_IS_DBUS_PROXY_CLASS(k) (G_TYPE_CHECK_CLASS_TYPE ((k), G_TYPE_DBUS_PROXY))
typedef struct _GDBusProxyClass GDBusProxyClass;
typedef struct _GDBusProxyPrivate GDBusProxyPrivate;
/**
* GDBusProxy:
*
* The #GDBusProxy structure contains only private data and
* should only be accessed using the provided API.
*
* Since: 2.26
*/
struct _GDBusProxy
{
/*< private >*/
GObject parent_instance;
GDBusProxyPrivate *priv;
};
/**
* GDBusProxyClass:
* @g_properties_changed: Signal class handler for the #GDBusProxy::g-properties-changed signal.
* @g_signal: Signal class handler for the #GDBusProxy::g-signal signal.
*
* Class structure for #GDBusProxy.
*
* Since: 2.26
*/
struct _GDBusProxyClass
{
/*< private >*/
GObjectClass parent_class;
/*< public >*/
/* Signals */
void (*g_properties_changed) (GDBusProxy *proxy,
GVariant *changed_properties);
void (*g_signal) (GDBusProxy *proxy,
const gchar *sender_name,
const gchar *signal_name,
GVariant *parameters);
/*< private >*/
/* Padding for future expansion */
void (*_g_reserved1) (void);
void (*_g_reserved2) (void);
void (*_g_reserved3) (void);
void (*_g_reserved4) (void);
void (*_g_reserved5) (void);
void (*_g_reserved6) (void);
void (*_g_reserved7) (void);
void (*_g_reserved8) (void);
};
GType g_dbus_proxy_get_type (void) G_GNUC_CONST;
void g_dbus_proxy_new (GDBusConnection *connection,
GType object_type,
GDBusProxyFlags flags,
GDBusInterfaceInfo *info,
const gchar *unique_bus_name,
const gchar *object_path,
const gchar *interface_name,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data);
GDBusProxy *g_dbus_proxy_new_finish (GAsyncResult *res,
GError **error);
GDBusProxy *g_dbus_proxy_new_sync (GDBusConnection *connection,
GType object_type,
GDBusProxyFlags flags,
GDBusInterfaceInfo *info,
const gchar *unique_bus_name,
const gchar *object_path,
const gchar *interface_name,
GCancellable *cancellable,
GError **error);
GDBusConnection *g_dbus_proxy_get_connection (GDBusProxy *proxy);
GDBusProxyFlags g_dbus_proxy_get_flags (GDBusProxy *proxy);
const gchar *g_dbus_proxy_get_unique_bus_name (GDBusProxy *proxy);
const gchar *g_dbus_proxy_get_object_path (GDBusProxy *proxy);
const gchar *g_dbus_proxy_get_interface_name (GDBusProxy *proxy);
gint g_dbus_proxy_get_default_timeout (GDBusProxy *proxy);
void g_dbus_proxy_set_default_timeout (GDBusProxy *proxy,
gint timeout_msec);
GDBusInterfaceInfo *g_dbus_proxy_get_interface_info (GDBusProxy *proxy);
void g_dbus_proxy_set_interface_info (GDBusProxy *proxy,
GDBusInterfaceInfo *info);
GVariant *g_dbus_proxy_get_cached_property (GDBusProxy *proxy,
const gchar *property_name);
void g_dbus_proxy_set_cached_property (GDBusProxy *proxy,
const gchar *property_name,
GVariant *value);
gchar **g_dbus_proxy_get_cached_property_names (GDBusProxy *proxy,
GError **error);
void g_dbus_proxy_call (GDBusProxy *proxy,
const gchar *method_name,
GVariant *parameters,
GDBusCallFlags flags,
gint timeout_msec,
GCancellable *cancellable,
GAsyncReadyCallback callback,
gpointer user_data);
GVariant *g_dbus_proxy_call_finish (GDBusProxy *proxy,
GAsyncResult *res,
GError **error);
GVariant *g_dbus_proxy_call_sync (GDBusProxy *proxy,
const gchar *method_name,
GVariant *parameters,
GDBusCallFlags flags,
gint timeout_msec,
GCancellable *cancellable,
GError **error);
G_END_DECLS
#endif /* __G_DBUS_PROXY_H__ */