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use std::io;
use std::net::SocketAddr;
use std::pin::Pin;
use std::task::{Context, Poll};
use hyper::server::conn::AddrStream;
use tokio::io::{AsyncRead, AsyncWrite, ReadBuf};
pub trait Transport: AsyncRead + AsyncWrite {
fn remote_addr(&self) -> Option<SocketAddr>;
}
impl Transport for AddrStream {
fn remote_addr(&self) -> Option<SocketAddr> {
Some(self.remote_addr())
}
}
pub(crate) struct LiftIo<T>(pub(crate) T);
impl<T: AsyncRead + Unpin> AsyncRead for LiftIo<T> {
fn poll_read(
self: Pin<&mut Self>,
cx: &mut Context<'_>,
buf: &mut ReadBuf<'_>,
) -> Poll<io::Result<()>> {
Pin::new(&mut self.get_mut().0).poll_read(cx, buf)
}
}
impl<T: AsyncWrite + Unpin> AsyncWrite for LiftIo<T> {
fn poll_write(
self: Pin<&mut Self>,
cx: &mut Context<'_>,
buf: &[u8],
) -> Poll<io::Result<usize>> {
Pin::new(&mut self.get_mut().0).poll_write(cx, buf)
}
fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), io::Error>> {
Pin::new(&mut self.get_mut().0).poll_flush(cx)
}
fn poll_shutdown(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), io::Error>> {
Pin::new(&mut self.get_mut().0).poll_shutdown(cx)
}
}
impl<T: AsyncRead + AsyncWrite + Unpin> Transport for LiftIo<T> {
fn remote_addr(&self) -> Option<SocketAddr> {
None
}
}