pub fn get_task_waker<F, R>(f: F) -> R where
F: FnOnce(&Waker) -> R,
🔬 This is a nightly-only experimental API. (
Retrieves the thread-local task waker used by async/await futures.
This function acquires exclusive access to the task waker.
Panics if no waker has been set or if the waker has already been retrieved by a surrounding call to get_task_waker.