use std::{
future::Future,
ops::{Deref, DerefMut},
pin::Pin,
task::{Context, Poll},
};
use futures::FutureExt;
use tokio::task::{JoinError, JoinHandle};
pub struct AbortOnDrop<T> {
inner: JoinHandle<T>,
}
impl<T> Future for AbortOnDrop<T> {
type Output = Result<T, JoinError>;
fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
self.inner.poll_unpin(cx)
}
}
impl<T> Drop for AbortOnDrop<T> {
fn drop(&mut self) {
self.inner.abort();
}
}
impl<T> Deref for AbortOnDrop<T> {
type Target = JoinHandle<T>;
fn deref(&self) -> &Self::Target {
&self.inner
}
}
impl<T> DerefMut for AbortOnDrop<T> {
fn deref_mut(&mut self) -> &mut Self::Target {
&mut self.inner
}
}
impl<T> From<JoinHandle<T>> for AbortOnDrop<T> {
fn from(handle: JoinHandle<T>) -> Self {
Self { inner: handle }
}
}