blob: 33d2fd01866a79c90fd739746ff04c8ea52209da [file] [log] [blame]
use futures_core::future::Future;
use futures_core::task::{self, Poll};
use futures_io::AsyncWrite;
use std::io;
use std::marker::Unpin;
use std::mem::PinMut;
/// A future used to fully close an I/O object.
///
/// Created by the [`close`] function.
///
/// [`close`]: fn.close.html
#[derive(Debug)]
pub struct Close<'a, W: ?Sized + 'a> {
writer: &'a mut W,
}
// PinMut is never projected to fields
impl<W: ?Sized> Unpin for Close<'_, W> {}
impl<'a, W: AsyncWrite + ?Sized> Close<'a, W> {
pub(super) fn new(writer: &'a mut W) -> Self {
Close { writer }
}
}
impl<W: AsyncWrite + ?Sized> Future for Close<'_, W> {
type Output = io::Result<()>;
fn poll(mut self: PinMut<Self>, cx: &mut task::Context) -> Poll<Self::Output> {
self.writer.poll_close(cx)
}
}