/**
* _nm_dbus_signal_connect_data:
* @proxy: a #GDBusProxy
* @signal_name: the D-Bus signal to connect to
* @signature: (allow-none): the signal's type signature (must be a tuple)
* @c_handler: the signal handler function
* @data: (allow-none): data to pass to @c_handler
* @destroy_data: (allow-none): closure destroy notify for @data
* @connect_flags: connection flags
*
* Connects to the D-Bus signal @signal_name on @proxy. @c_handler must be a
* void function whose first argument is a #GDBusProxy, followed by arguments
* for each element of @signature, ending with a #gpointer argument for @data.
*
* The argument types in @c_handler correspond to the types output by
* g_dbus_gvariant_to_gvalue(), except for 'ay' and 'aay'. In particular:
* - both 16-bit and 32-bit integers are passed as #gint/#guint
* - 'as' values are passed as #GStrv (char **)
* - all other array, tuple, and dict types are passed as #GVariant
*
* If @signature is %NULL, then the signal's parameters will be ignored, and
* @c_handler should take only the #GDBusProxy and #gpointer arguments.
*
* Returns: the signal handler ID, which can be used with
* g_signal_handler_remove(). Beware that because of the way the signal is
* connected, you will not be able to remove it with
* g_signal_handlers_disconnect_by_func(), although
* g_signal_handlers_disconnect_by_data() will work correctly.
*/
gulong
_nm_dbus_signal_connect_data (GDBusProxy *proxy,
const char *signal_name,
const GVariantType *signature,
GCallback c_handler,
gpointer data,
GClosureNotify destroy_data,
GConnectFlags connect_flags)
{
NMDBusSignalData *sd;
GClosure *closure;
gboolean swapped = !!(connect_flags & G_CONNECT_SWAPPED);
gboolean after = !!(connect_flags & G_CONNECT_AFTER);
g_return_val_if_fail (G_IS_DBUS_PROXY (proxy), 0);
g_return_val_if_fail (signal_name != NULL, 0);
g_return_val_if_fail (signature == NULL || g_variant_type_is_tuple (signature), 0);
g_return_val_if_fail (c_handler != NULL, 0);
sd = g_slice_new (NMDBusSignalData);
sd->signal_name = g_strdup (signal_name);
sd->signature = signature;
closure = (swapped ? g_cclosure_new_swap : g_cclosure_new) (c_handler, data, destroy_data);
g_closure_set_marshal (closure, g_cclosure_marshal_generic);
g_closure_set_meta_marshal (closure, sd, dbus_signal_meta_marshal);
g_closure_add_finalize_notifier (closure, sd, dbus_signal_data_free);
return g_signal_connect_closure (proxy, "g-signal", closure, after);
}
/**
* g_source_set_dummy_callback:
* @source: the source
*
* Sets a dummy callback for @source. The callback will do nothing, and
* if the source expects a #gboolean return value, it will return %TRUE.
* (If the source expects any other type of return value, it will return
* a 0/%NULL value; whatever g_value_init() initializes a #GValue to for
* that type.)
*
* If the source is not one of the standard GLib types, the
* @closure_callback and @closure_marshal fields of the #GSourceFuncs
* structure must have been filled in with pointers to appropriate
* functions.
*/
void
g_source_set_dummy_callback (GSource *source)
{
GClosure *closure;
closure = g_closure_new_simple (sizeof (GClosure), NULL);
g_closure_set_meta_marshal (closure, NULL, dummy_closure_marshal);
g_source_set_closure (source, closure);
}
GClosure*
gjs_closure_new_for_signal(JSContext *context,
JSObject *callable,
const char *description,
guint signal_id)
{
GClosure *closure;
closure = gjs_closure_new(context, callable, description, FALSE);
g_closure_set_meta_marshal(closure, GUINT_TO_POINTER(signal_id), closure_marshal);
return closure;
}
/* Takes (method_name, handler_func) pairs and connects the handlers to the
* signals on skeleton, with object as the user_data, but swapped so it comes
* first in the argument list, and handling the return value automatically.
*/
void
_nm_dbus_bind_methods (gpointer object, gpointer skeleton, ...)
{
va_list ap;
const char *method_name;
char *signal_name;
GCallback handler;
GClosure *closure;
va_start (ap, skeleton);
while ( (method_name = va_arg (ap, const char *))
&& (handler = va_arg (ap, GCallback))) {
signal_name = signal_name_from_method_name (method_name);
closure = g_cclosure_new_swap (handler, object, NULL);
g_closure_set_meta_marshal (closure, NULL, _nm_dbus_method_meta_marshal);
g_signal_connect_closure (skeleton, signal_name, closure, FALSE);
g_free (signal_name);
}
va_end (ap);
}
