2 * Copyright © 2010 Red Hat, Inc.
4 * This program is free software: you can redistribute it and/or modify
5 * it under the terms of the GNU Lesser General Public License as published
6 * by the Free Software Foundation; either version 2 of the licence or (at
7 * your option) any later version.
9 * See the included COPYING file for more information.
11 * Author: David Zeuthen <davidz@redhat.com>
16 static gchar *opt_name = NULL;
17 static gboolean opt_system_bus = FALSE;
18 static gboolean opt_auto_start = FALSE;
20 static GOptionEntry opt_entries[] =
22 { "name", 'n', 0, G_OPTION_ARG_STRING, &opt_name, "Name to watch", NULL },
23 { "system-bus", 's', 0, G_OPTION_ARG_NONE, &opt_system_bus, "Use the system-bus instead of the session-bus", NULL },
24 { "auto-start", 'a', 0, G_OPTION_ARG_NONE, &opt_auto_start, "Instruct the bus to launch an owner for the name", NULL},
29 on_name_appeared (GDBusConnection *connection,
31 const gchar *name_owner,
34 g_print ("Name %s on %s is owned by %s\n",
36 opt_system_bus ? "the system bus" : "the session bus",
41 on_name_vanished (GDBusConnection *connection,
45 g_print ("Name %s does not exist on %s\n",
47 opt_system_bus ? "the system bus" : "the session bus");
51 main (int argc, char *argv[])
55 GOptionContext *opt_context;
57 GBusNameWatcherFlags flags;
62 opt_context = g_option_context_new ("g_bus_watch_name() example");
63 g_option_context_set_summary (opt_context,
64 "Example: to watch the power manager on the session bus, use:\n"
66 " ./example-watch-name -n org.gnome.PowerManager");
67 g_option_context_add_main_entries (opt_context, opt_entries, NULL);
68 if (!g_option_context_parse (opt_context, &argc, &argv, &error))
70 g_printerr ("Error parsing options: %s", error->message);
75 g_printerr ("Incorrect usage, try --help.\n");
79 flags = G_BUS_NAME_WATCHER_FLAGS_NONE;
81 flags |= G_BUS_NAME_WATCHER_FLAGS_AUTO_START;
83 watcher_id = g_bus_watch_name (opt_system_bus ? G_BUS_TYPE_SYSTEM : G_BUS_TYPE_SESSION,
91 loop = g_main_loop_new (NULL, FALSE);
92 g_main_loop_run (loop);
94 g_bus_unwatch_name (watcher_id);
97 g_option_context_free (opt_context);