113 lines
2.6 KiB
Rust
113 lines
2.6 KiB
Rust
use super::*;
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use core::pin::Pin;
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use core::task::{Context, Poll};
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use futures_util::AsyncRead as Read;
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use futures_util::AsyncWrite as Write;
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use futures_util::Sink;
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use futures_util::Stream;
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use std::io;
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pub struct CloneStream<T>
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where
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T: Unpin,
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{
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inner: Arc<Mutex<T>>,
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}
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impl<T> Clone for CloneStream<T>
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where
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T: Unpin,
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{
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fn clone(&self) -> Self {
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Self {
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inner: self.inner.clone(),
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}
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}
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}
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impl<T> CloneStream<T>
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where
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T: Unpin,
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{
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pub fn new(t: T) -> Self {
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Self {
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inner: Arc::new(Mutex::new(t)),
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}
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}
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}
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impl<T> Read for CloneStream<T>
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where
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T: Read + Unpin,
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{
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fn poll_read(
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self: Pin<&mut Self>,
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cx: &mut Context<'_>,
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buf: &mut [u8],
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) -> Poll<io::Result<usize>> {
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let mut inner = self.inner.lock();
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Pin::new(&mut *inner).poll_read(cx, buf)
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}
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}
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impl<T> Write for CloneStream<T>
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where
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T: Write + Unpin,
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{
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fn poll_write(
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self: Pin<&mut Self>,
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cx: &mut Context<'_>,
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buf: &[u8],
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) -> Poll<io::Result<usize>> {
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let mut inner = self.inner.lock();
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Pin::new(&mut *inner).poll_write(cx, buf)
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}
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fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<()>> {
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let mut inner = self.inner.lock();
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Pin::new(&mut *inner).poll_flush(cx)
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}
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fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<io::Result<()>> {
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let mut inner = self.inner.lock();
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Pin::new(&mut *inner).poll_close(cx)
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}
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}
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impl<T> Stream for CloneStream<T>
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where
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T: Stream + Unpin,
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{
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type Item = T::Item;
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fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
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let mut inner = self.inner.lock();
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Pin::new(&mut *inner).poll_next(cx)
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}
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}
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impl<T, Item> Sink<Item> for CloneStream<T>
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where
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T: Sink<Item> + Unpin,
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{
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type Error = T::Error;
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fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
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let mut inner = self.inner.lock();
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Pin::new(&mut *inner).poll_ready(cx)
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}
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fn start_send(self: Pin<&mut Self>, item: Item) -> Result<(), Self::Error> {
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let mut inner = self.inner.lock();
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Pin::new(&mut *inner).start_send(item)
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}
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fn poll_flush(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
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let mut inner = self.inner.lock();
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Pin::new(&mut *inner).poll_flush(cx)
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}
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fn poll_close(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
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let mut inner = self.inner.lock();
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Pin::new(&mut *inner).poll_close(cx)
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}
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}
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