use crate::imp;
use std::{
any::Any,
future::Future,
pin::{pin, Pin},
result,
task::{Context, Poll},
time::Duration,
};
#[inline]
pub async fn sleep(duration: Duration) {
imp::task::sleep(duration).await
}
pub struct JoinHandle<T>(imp::task::JoinHandle<T>);
impl<T> JoinHandle<T> {
#[inline]
pub async fn cancel(self) -> Option<T> {
self.0.cancel().await
}
}
pub type Result<T> = result::Result<T, Box<dyn Any + Send + 'static>>;
impl<T> Future for JoinHandle<T> {
type Output = Result<T>;
#[inline]
fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
Future::poll(pin!(&mut self.0), cx)
}
}
#[inline]
pub fn spawn<T: Send + 'static>(future: impl Future<Output = T> + Send + 'static) -> JoinHandle<T> {
JoinHandle(imp::task::spawn(future))
}
#[inline]
pub fn spawn_blocking<T: Send + 'static>(f: impl FnOnce() -> T + Send + 'static) -> JoinHandle<T> {
JoinHandle(imp::task::spawn_blocking(f))
}