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#include <gio/gio.h>
static gchar *opt_name = NULL;
static gchar *opt_object_path = NULL;
static gchar *opt_interface = NULL;
static gboolean opt_system_bus = FALSE;
static gboolean opt_no_auto_start = FALSE;
static gboolean opt_no_properties = FALSE;
static GOptionEntry opt_entries[] =
{
{ "name", 'n', 0, G_OPTION_ARG_STRING, &opt_name, "Name of the remote object to watch", NULL },
{ "object-path", 'o', 0, G_OPTION_ARG_STRING, &opt_object_path, "Object path of the remote object", NULL },
{ "interface", 'i', 0, G_OPTION_ARG_STRING, &opt_interface, "D-Bus interface of remote object", NULL },
{ "system-bus", 's', 0, G_OPTION_ARG_NONE, &opt_system_bus, "Use the system-bus instead of the session-bus", NULL },
{ "no-auto-start", 'a', 0, G_OPTION_ARG_NONE, &opt_no_auto_start, "Don't instruct the bus to launch an owner for the name", NULL},
{ "no-properties", 'p', 0, G_OPTION_ARG_NONE, &opt_no_properties, "Do not load properties", NULL},
{ NULL}
};
static GMainLoop *loop = NULL;
static void
print_properties (GDBusProxy *proxy)
{
gchar **property_names;
guint n;
g_print (" properties:\n");
property_names = g_dbus_proxy_get_cached_property_names (proxy);
for (n = 0; property_names != NULL && property_names[n] != NULL; n++)
{
const gchar *key = property_names[n];
GVariant *value;
gchar *value_str;
value = g_dbus_proxy_get_cached_property (proxy, key);
value_str = g_variant_print (value, TRUE);
g_print (" %s -> %s\n", key, value_str);
g_variant_unref (value);
g_free (value_str);
}
g_strfreev (property_names);
}
static void
on_properties_changed (GDBusProxy *proxy,
GVariant *changed_properties,
const gchar* const *invalidated_properties,
gpointer user_data)
{
/* Note that we are guaranteed that changed_properties and
* invalidated_properties are never NULL
*/
if (g_variant_n_children (changed_properties) > 0)
{
GVariantIter *iter;
const gchar *key;
GVariant *value;
g_print (" *** Properties Changed:\n");
g_variant_get (changed_properties,
"a{sv}",
&iter);
while (g_variant_iter_loop (iter, "{&sv}", &key, &value))
{
gchar *value_str;
value_str = g_variant_print (value, TRUE);
g_print (" %s -> %s\n", key, value_str);
g_free (value_str);
}
g_variant_iter_free (iter);
}
if (g_strv_length ((GStrv) invalidated_properties) > 0)
{
guint n;
g_print (" *** Properties Invalidated:\n");
for (n = 0; invalidated_properties[n] != NULL; n++)
{
const gchar *key = invalidated_properties[n];
g_print (" %s\n", key);
}
}
}
static void
on_signal (GDBusProxy *proxy,
gchar *sender_name,
gchar *signal_name,
GVariant *parameters,
gpointer user_data)
{
gchar *parameters_str;
parameters_str = g_variant_print (parameters, TRUE);
g_print (" *** Received Signal: %s: %s\n",
signal_name,
parameters_str);
g_free (parameters_str);
}
static void
print_proxy (GDBusProxy *proxy)
{
gchar *name_owner;
name_owner = g_dbus_proxy_get_name_owner (proxy);
if (name_owner != NULL)
{
g_print ("+++ Proxy object points to remote object owned by %s\n"
" bus: %s\n"
" name: %s\n"
" object path: %s\n"
" interface: %s\n",
name_owner,
opt_system_bus ? "System Bus" : "Session Bus",
opt_name,
opt_object_path,
opt_interface);
print_properties (proxy);
}
else
{
g_print ("--- Proxy object is inert - there is no name owner for the name\n"
" bus: %s\n"
" name: %s\n"
" object path: %s\n"
" interface: %s\n",
opt_system_bus ? "System Bus" : "Session Bus",
opt_name,
opt_object_path,
opt_interface);
}
g_free (name_owner);
}
static void
on_name_owner_notify (GObject *object,
GParamSpec *pspec,
gpointer user_data)
{
GDBusProxy *proxy = G_DBUS_PROXY (object);
print_proxy (proxy);
}
int
main (int argc, char *argv[])
{
GOptionContext *opt_context;
GError *error;
GDBusProxyFlags flags;
GDBusProxy *proxy;
loop = NULL;
proxy = NULL;
opt_context = g_option_context_new ("g_bus_watch_proxy() example");
g_option_context_set_summary (opt_context,
"Example: to watch the object of gdbus-example-server, use:\n"
"\n"
" ./gdbus-example-watch-proxy -n org.gtk.GDBus.TestServer \\\n"
" -o /org/gtk/GDBus/TestObject \\\n"
" -i org.gtk.GDBus.TestInterface");
g_option_context_add_main_entries (opt_context, opt_entries, NULL);
error = NULL;
if (!g_option_context_parse (opt_context, &argc, &argv, &error))
{
g_printerr ("Error parsing options: %s\n", error->message);
goto out;
}
if (opt_name == NULL || opt_object_path == NULL || opt_interface == NULL)
{
g_printerr ("Incorrect usage, try --help.\n");
goto out;
}
flags = G_DBUS_PROXY_FLAGS_NONE;
if (opt_no_properties)
flags |= G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES;
if (opt_no_auto_start)
flags |= G_DBUS_PROXY_FLAGS_DO_NOT_AUTO_START;
loop = g_main_loop_new (NULL, FALSE);
error = NULL;
proxy = g_dbus_proxy_new_for_bus_sync (opt_system_bus ? G_BUS_TYPE_SYSTEM : G_BUS_TYPE_SESSION,
flags,
NULL, /* GDBusInterfaceInfo */
opt_name,
opt_object_path,
opt_interface,
NULL, /* GCancellable */
&error);
if (proxy == NULL)
{
g_printerr ("Error creating proxy: %s\n", error->message);
g_error_free (error);
goto out;
}
g_signal_connect (proxy,
"g-properties-changed",
G_CALLBACK (on_properties_changed),
NULL);
g_signal_connect (proxy,
"g-signal",
G_CALLBACK (on_signal),
NULL);
g_signal_connect (proxy,
"notify::g-name-owner",
G_CALLBACK (on_name_owner_notify),
NULL);
print_proxy (proxy);
g_main_loop_run (loop);
out:
if (proxy != NULL)
g_object_unref (proxy);
if (loop != NULL)
g_main_loop_unref (loop);
g_option_context_free (opt_context);
g_free (opt_name);
g_free (opt_object_path);
g_free (opt_interface);
return 0;
}
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