update filereader/writer todo

crates/rio/src/reader.rs

@@ -1 +1,27 @@
+use std::pin::Pin;
+use std::task::{Context, Poll};
+use tokio::io::{AsyncRead, ReadBuf};
 
+use crate::{EtagResolvable, HashReaderDetector, Reader};
+
+pub struct WarpReader<R> {
+    inner: R,
+}
+
+impl<R: AsyncRead + Unpin + Send + Sync> WarpReader<R> {
+    pub fn new(inner: R) -> Self {
+        Self { inner }
+    }
+}
+
+impl<R: AsyncRead + Unpin + Send + Sync> AsyncRead for WarpReader<R> {
+    fn poll_read(mut self: Pin<&mut Self>, cx: &mut Context<'_>, buf: &mut ReadBuf<'_>) -> Poll<std::io::Result<()>> {
+        Pin::new(&mut self.inner).poll_read(cx, buf)
+    }
+}
+
+impl<R: AsyncRead + Unpin + Send + Sync> HashReaderDetector for WarpReader<R> {}
+
+impl<R: AsyncRead + Unpin + Send + Sync> EtagResolvable for WarpReader<R> {}
+
+impl<R: AsyncRead + Unpin + Send + Sync> Reader for WarpReader<R> {}