static void mtn_connman_initable_init_async (GAsyncInitable *initable, gint io_priority, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data) { GAsyncInitableIface *iface_class, *parent_iface_class; InitData *data; data = g_new0 (InitData, 1); data->cancellable = cancellable; data->res = g_simple_async_result_new (G_OBJECT (initable), callback, user_data, NULL); /* Chain up the parent method */ iface_class = G_ASYNC_INITABLE_GET_IFACE (initable); parent_iface_class = g_type_interface_peek_parent (iface_class); parent_iface_class->init_async (initable, io_priority, cancellable, _parent_init_async_cb, data); }
static gboolean mtn_connman_initable_init_finish (GAsyncInitable *initable, GAsyncResult *res, GError **error) { GAsyncInitableIface *iface_class, *parent_iface_class; /* Chain up the parent method */ iface_class = G_ASYNC_INITABLE_GET_IFACE (initable); parent_iface_class = g_type_interface_peek_parent (iface_class); return parent_iface_class->init_finish (initable, res, error); }
/** * g_async_initable_init_async: * @initable: a #GAsyncInitable. * @io_priority: the <link linkend="io-priority">I/O priority</link> * of the operation. * @cancellable: optional #GCancellable object, %NULL to ignore. * @callback: a #GAsyncReadyCallback to call when the request is satisfied * @user_data: the data to pass to callback function * * Starts asynchronous initialization of the object implementing the * interface. This must be done before any real use of the object after * initial construction. If the object also implements #GInitable you can * optionally call g_initable_init() instead. * * When the initialization is finished, @callback will be called. You can * then call g_async_initable_init_finish() to get the result of the * initialization. * * Implementations may also support cancellation. If @cancellable is not * %NULL, then initialization can be cancelled by triggering the cancellable * object from another thread. If the operation was cancelled, the error * %G_IO_ERROR_CANCELLED will be returned. If @cancellable is not %NULL, and * the object doesn't support cancellable initialization, the error * %G_IO_ERROR_NOT_SUPPORTED will be returned. * * As with #GInitable, if the object is not initialized, or initialization * returns with an error, then all operations on the object except * g_object_ref() and g_object_unref() are considered to be invalid, and * have undefined behaviour. They will often fail with g_critical() or * g_warning(), but this must not be relied on. * * Implementations of this method must be idempotent: i.e. multiple calls * to this function with the same argument should return the same results. * Only the first call initializes the object; further calls return the result * of the first call. This is so that it's safe to implement the singleton * pattern in the GObject constructor function. * * For classes that also support the #GInitable interface, the default * implementation of this method will run the g_initable_init() function * in a thread, so if you want to support asynchronous initialization via * threads, just implement the #GAsyncInitable interface without overriding * any interface methods. * * Since: 2.22 */ void g_async_initable_init_async (GAsyncInitable *initable, int io_priority, GCancellable *cancellable, GAsyncReadyCallback callback, gpointer user_data) { GAsyncInitableIface *iface; g_return_if_fail (G_IS_ASYNC_INITABLE (initable)); iface = G_ASYNC_INITABLE_GET_IFACE (initable); (* iface->init_async) (initable, io_priority, cancellable, callback, user_data); }
/** * g_async_initable_init_finish: * @initable: a #GAsyncInitable. * @res: a #GAsyncResult. * @error: a #GError location to store the error occurring, or %NULL to * ignore. * * Finishes asynchronous initialization and returns the result. * See g_async_initable_init_async(). * * Returns: %TRUE if successful. If an error has occurred, this function * will return %FALSE and set @error appropriately if present. * * Since: 2.22 */ gboolean g_async_initable_init_finish (GAsyncInitable *initable, GAsyncResult *res, GError **error) { GAsyncInitableIface *iface; g_return_val_if_fail (G_IS_ASYNC_INITABLE (initable), FALSE); g_return_val_if_fail (G_IS_ASYNC_RESULT (res), FALSE); if (g_async_result_legacy_propagate_error (res, error)) return FALSE; iface = G_ASYNC_INITABLE_GET_IFACE (initable); return (* iface->init_finish) (initable, res, error); }