rom/dbus/test/dbus-ping-send.c

   1 #include <glib.h>
   2 #include <dbus/dbus.h>
   3 #include <dbus/dbus-glib.h>
   4
   5 static gboolean send_ping (DBusConnection *bus);
   6
   7 int
   8 main (int argc, char **argv)
   9 {
  10   GMainLoop *loop;
  11   DBusConnection *bus;
  12   DBusError error;
  13
  14   /* Create a new event loop to run in */
  15   loop = g_main_loop_new (NULL, FALSE);
  16
  17   /* Get a connection to the session bus */
  18   dbus_error_init (&error);
  19   bus = dbus_bus_get (DBUS_BUS_SESSION, &error);
  20   if (!bus) {
  21     g_warning ("Failed to connect to the D-BUS daemon: %s", error.message);
  22     dbus_error_free (&error);
  23     return 1;
  24   }
  25
  26   /* Set up this connection to work in a GLib event loop */
  27   dbus_connection_setup_with_g_main (bus, NULL);
  28   /* Every second call send_ping() with the bus as an argument*/
  29   g_timeout_add (1000, (GSourceFunc)send_ping, bus);
  30
  31   /* Start the event loop */
  32   g_main_loop_run (loop);
  33   return 0;
  34 }
  35
  36 static gboolean
  37 send_ping (DBusConnection *bus)
  38 {
  39   DBusMessage *message;
  40
  41   /* Create a new signal "Ping" on the "com.burtonini.dbus.Signal" interface,
  42    * from the object "/com/burtonini/dbus/ping". */
  43   message = dbus_message_new_signal ("/com/burtonini/dbus/ping",
  44                                      "com.burtonini.dbus.Signal", "Ping");
  45   /* Append the string "Ping!" to the signal */
  46   dbus_message_append_args (message,
  47                             DBUS_TYPE_STRING, "Ping!",
  48                             DBUS_TYPE_INVALID);
  49   /* Send the signal */
  50   dbus_connection_send (bus, message, NULL);
  51   /* Free the signal now we have finished with it */
  52   dbus_message_unref (message);
  53   /* Tell the user we send a signal */
  54   g_print("Ping!\n");
  55   /* Return TRUE to tell the event loop we want to be called again */
  56   return TRUE;
  57 }