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fix(io): handle missing source in stdin #534

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fix(io): handle missing source in stdin #534

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ab130c4
fix(io): handle missing source in stdin
dignifiedquire Feb 23, 2022
f27fa23
fixup: try making test work on ci
dignifiedquire Feb 23, 2022
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26 changes: 23 additions & 3 deletions glommio/src/io/buffered_file_stream.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -654,7 +654,12 @@ impl AsyncBufRead for Stdin {
) -> Poll<io::Result<&'a [u8]>> {
match self.source.take() {
Some(source) => {
let res = source.result().unwrap();
let res = match source.result() {
Some(res) => res,
None => {
return Poll::Pending;
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I don't know if this is the correct fix, but it does fix both the test case and when using stdin in my program to read from it

}
};
match res {
Err(x) => Poll::Ready(Err(x)),
Ok(sz) => {
Expand Down Expand Up @@ -691,9 +696,9 @@ impl AsyncBufRead for Stdin {
#[cfg(test)]
mod test {
use super::*;
use crate::test_utils::make_test_directories;
use crate::{test_utils::make_test_directories, GlommioError};
use futures_lite::{AsyncBufReadExt, AsyncReadExt, AsyncSeekExt, AsyncWriteExt, StreamExt};
use std::io::ErrorKind;
use std::{io::ErrorKind, time::Duration};

macro_rules! read_test {
( $name:ident, $dir:ident, $kind:ident, $file:ident, $file_size:ident: $size:tt, $code:block) => {
Expand Down Expand Up @@ -982,4 +987,19 @@ mod test {
reader.close().await.unwrap();
writer.close().await.unwrap();
});

#[test]
fn test_stdin_fuse() {
use futures::StreamExt;

test_executor!(async move {
let mut si = StreamExt::fuse(stdin().lines());
let fut = crate::timer::timeout(Duration::from_millis(5), async move {
si.select_next_some()
.await
.map_err(|err| GlommioError::IoError(err))
});
assert!(matches!(fut.await, Err(GlommioError::TimedOut(_))));
});
}
}