#include <glib.h>
#include <dbus/dbus-glib.h>
static gboolean send_ping (DBusConnection *bus);
int
main (int argc, char **argv)
{
GMainLoop *loop;
DBusConnection *bus;
DBusError error;
/* Create a new event loop to run in */
loop = g_main_loop_new (NULL, FALSE);
/* Get a connection to the session bus */
dbus_error_init (&error);
bus = dbus_bus_get (DBUS_BUS_SESSION, &error);
if (!bus) {
g_warning ("Failed to connect to the D-BUS
daemon: %s", error.message);
dbus_error_free (&error);
return 1;
}
/* Set up this connection to work in a GLib event loop */
dbus_connection_setup_with_g_main (bus, NULL);
/* Every second call send_ping() with the bus as an argument*/
g_timeout_add (1000, (GSourceFunc)send_ping, bus);
/* Start the event loop */
g_main_loop_run (loop);
return 0;
}
static gboolean
send_ping (DBusConnection *bus)
{
DBusMessage *message;
/* Create a new signal "Ping" on the
"com.burtonini.dbus.Signal" interface,
* from the object "/com/burtonini/dbus/ping". */
message = dbus_message_new_signal
("/com/burtonini/dbus/ping",
"com.burtonini.dbus.Signal", "Ping");
/* Append the string "Ping!" to the signal */
dbus_message_append_args (message,
DBUS_TYPE_STRING, "Ping!",
DBUS_TYPE_INVALID);
/* Send the signal */
dbus_connection_send (bus, message, NULL);
/* Free the signal now we have finished with it */
dbus_message_unref (message);
/* Tell the user we send a signal */
g_print("Ping!\n");
/* Return TRUE to tell the event loop
we want to be called again */
return TRUE;
}
|
