[SOLVED] GLIB usage without mainloop

GLIB usage without mainloop

I have a problem using Glib. I want to subscribe to a dbus signal without launching the mainloop with g_main_loop_run.

I create the connection to the correct bus and call the function g_dbus_connection_signal_subscribe.

I replaced the call to g_main_loop_run in the main function by a while(1).

Unfortunately, it's not working. If I understand correctly the GLib, there is no need to launch the mainloop for a such treatment.

Please help.

Sample code :

session_bus = g_bus_get_sync(G_BUS_TYPE_SESSION,
                             NULL,
                             NULL );


g_dbus_connection_signal_subscribe(session_bus,
                                   "org.freedesktop.Notifications",
                                   "org.freedesktop.Notifications",
                                   "NotificationClosed",
                                   "/org/freedesktop/Notifications",
                                   NULL,
                                   G_DBUS_SIGNAL_FLAGS_NONE,
                                   (GDBusSignalCallback) onNotifClosed,
                                   NULL,
                                   NULL );

loop = g_main_loop_new(NULL, FALSE);
g_main_loop_run(loop);
g_main_loop_unref(loop);
g_object_unref(session_bus);

Solution

If I understand correctly the GLib, there is no need to launch the mainloop for a such treatment.

If you want to wait for incoming DBus events, you have to run main loop. What main loop does is to wait and process events, and you want to wait and then process events. As an alternative to g_main_loop_run, you may try to run g_main_context_iteration in while(1).