use std::{
future::Future,
pin::Pin,
task::{Context, Poll},
};
#[derive(Default)]
struct Yield {
yielded: bool,
}
impl Future for Yield {
type Output = ();
fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
if self.yielded {
Poll::Ready(())
} else {
self.yielded = true;
cx.waker().wake_by_ref();
Poll::Pending
}
}
}
pub async fn yield_now() {
Yield::default().await
}