pub type GAsyncReadyCallback = Option<unsafe extern "C" fn(source_object: *mut GObject, res: *mut GAsyncResult, data: gpointer)>;Expand description
GAsyncReadyCallback: @source_object: (nullable): the object the asynchronous operation was started with. @res: a #GAsyncResult. @data: user data passed to the callback.
Type definition for a function that will be called back when an asynchronous operation within GIO has been completed. #GAsyncReadyCallback callbacks from #GTask are guaranteed to be invoked in a later iteration of the [thread-default main context][g-main-context-push-thread-default] where the #GTask was created. All other users of #GAsyncReadyCallback must likewise call it asynchronously in a later iteration of the main context.
The asynchronous operation is guaranteed to have held a reference to
@source_object from the time when the *_async() function was called, until
after this callback returns.
Aliased Type§
enum GAsyncReadyCallback {
None,
Some(unsafe extern "C" fn(*mut _GObject, *mut _GAsyncResult, *mut c_void)),
}