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54a57bb894
These are included wholesale in the docs, and the copyright headers make them even more overwhelming. Plus, we don't have copyright headers on examples anywhere else.
89 lines
2.6 KiB
C
89 lines
2.6 KiB
C
#include <gio/gio.h>
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static gchar *opt_name = NULL;
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static gboolean opt_system_bus = FALSE;
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static gboolean opt_auto_start = FALSE;
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static GOptionEntry opt_entries[] =
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{
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{ "name", 'n', 0, G_OPTION_ARG_STRING, &opt_name, "Name to watch", NULL },
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{ "system-bus", 's', 0, G_OPTION_ARG_NONE, &opt_system_bus, "Use the system-bus instead of the session-bus", NULL },
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{ "auto-start", 'a', 0, G_OPTION_ARG_NONE, &opt_auto_start, "Instruct the bus to launch an owner for the name", NULL},
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{ NULL}
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};
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static void
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on_name_appeared (GDBusConnection *connection,
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const gchar *name,
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const gchar *name_owner,
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gpointer user_data)
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{
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g_print ("Name %s on %s is owned by %s\n",
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name,
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opt_system_bus ? "the system bus" : "the session bus",
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name_owner);
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}
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static void
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on_name_vanished (GDBusConnection *connection,
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const gchar *name,
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gpointer user_data)
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{
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g_print ("Name %s does not exist on %s\n",
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name,
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opt_system_bus ? "the system bus" : "the session bus");
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}
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int
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main (int argc, char *argv[])
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{
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guint watcher_id;
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GMainLoop *loop;
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GOptionContext *opt_context;
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GError *error;
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GBusNameWatcherFlags flags;
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g_type_init ();
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error = NULL;
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opt_context = g_option_context_new ("g_bus_watch_name() example");
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g_option_context_set_summary (opt_context,
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"Example: to watch the power manager on the session bus, use:\n"
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"\n"
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" ./example-watch-name -n org.gnome.PowerManager");
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g_option_context_add_main_entries (opt_context, opt_entries, NULL);
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if (!g_option_context_parse (opt_context, &argc, &argv, &error))
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{
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g_printerr ("Error parsing options: %s", error->message);
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goto out;
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}
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if (opt_name == NULL)
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{
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g_printerr ("Incorrect usage, try --help.\n");
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goto out;
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}
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flags = G_BUS_NAME_WATCHER_FLAGS_NONE;
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if (opt_auto_start)
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flags |= G_BUS_NAME_WATCHER_FLAGS_AUTO_START;
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watcher_id = g_bus_watch_name (opt_system_bus ? G_BUS_TYPE_SYSTEM : G_BUS_TYPE_SESSION,
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opt_name,
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flags,
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on_name_appeared,
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on_name_vanished,
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NULL,
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NULL);
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loop = g_main_loop_new (NULL, FALSE);
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g_main_loop_run (loop);
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g_bus_unwatch_name (watcher_id);
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out:
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g_option_context_free (opt_context);
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g_free (opt_name);
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return 0;
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}
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