use std::pin::Pin;
use std::task::{self, Poll};
use std::{fmt, io};
use futures_util::TryFutureExt;
use tokio::io::{AsyncRead, AsyncWrite, ReadBuf};
pub struct Upgraded {
inner: hyper::upgrade::Upgraded,
}
impl AsyncRead for Upgraded {
fn poll_read(
mut self: Pin<&mut Self>,
cx: &mut task::Context<'_>,
buf: &mut ReadBuf<'_>,
) -> Poll<io::Result<()>> {
Pin::new(&mut self.inner).poll_read(cx, buf)
}
}
impl AsyncWrite for Upgraded {
fn poll_write(
mut self: Pin<&mut Self>,
cx: &mut task::Context<'_>,
buf: &[u8],
) -> Poll<io::Result<usize>> {
Pin::new(&mut self.inner).poll_write(cx, buf)
}
fn poll_write_vectored(
mut self: Pin<&mut Self>,
cx: &mut task::Context<'_>,
bufs: &[io::IoSlice<'_>],
) -> Poll<io::Result<usize>> {
Pin::new(&mut self.inner).poll_write_vectored(cx, bufs)
}
fn poll_flush(mut self: Pin<&mut Self>, cx: &mut task::Context<'_>) -> Poll<io::Result<()>> {
Pin::new(&mut self.inner).poll_flush(cx)
}
fn poll_shutdown(mut self: Pin<&mut Self>, cx: &mut task::Context<'_>) -> Poll<io::Result<()>> {
Pin::new(&mut self.inner).poll_shutdown(cx)
}
fn is_write_vectored(&self) -> bool {
self.inner.is_write_vectored()
}
}
impl fmt::Debug for Upgraded {
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
f.debug_struct("Upgraded").finish()
}
}
impl From<hyper::upgrade::Upgraded> for Upgraded {
fn from(inner: hyper::upgrade::Upgraded) -> Self {
Upgraded { inner }
}
}
impl super::response::Response {
pub async fn upgrade(self) -> crate::Result<Upgraded> {
hyper::upgrade::on(self.res)
.map_ok(Upgraded::from)
.map_err(crate::error::upgrade)
.await
}
}