};
struct _SignalClosure {
- ECalBackend *backend;
+ GWeakRef backend;
icaltimezone *cached_zone;
};
static void
signal_closure_free (SignalClosure *signal_closure)
{
- g_object_unref (signal_closure->backend);
+ g_weak_ref_set (&signal_closure->backend, NULL);
/* The icaltimezone is cached in ECalBackend's internal
* "zone_cache" hash table and must not be freed here. */
cal_backend_emit_timezone_added_idle_cb (gpointer user_data)
{
SignalClosure *signal_closure = user_data;
+ ECalBackend *backend;
- g_signal_emit_by_name (
- signal_closure->backend,
- "timezone-added",
- signal_closure->cached_zone);
+ backend = g_weak_ref_get (&signal_closure->backend);
+
+ if (backend != NULL) {
+ g_signal_emit_by_name (
+ backend, "timezone-added",
+ signal_closure->cached_zone);
+ g_object_unref (backend);
+ }
return FALSE;
}
* internally cached icaltimezone alive for the
* duration of the idle callback. */
signal_closure = g_slice_new0 (SignalClosure);
- signal_closure->backend = g_object_ref (cache);
+ g_weak_ref_set (&signal_closure->backend, cache);
signal_closure->cached_zone = cached_zone;
main_context = e_backend_ref_main_context (E_BACKEND (cache));