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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /third_party/rust/tokio-stream/src/wrappers/split.rs
parentInitial commit. (diff)
downloadfirefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz
firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'third_party/rust/tokio-stream/src/wrappers/split.rs')
-rw-r--r--third_party/rust/tokio-stream/src/wrappers/split.rs60
1 files changed, 60 insertions, 0 deletions
diff --git a/third_party/rust/tokio-stream/src/wrappers/split.rs b/third_party/rust/tokio-stream/src/wrappers/split.rs
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+++ b/third_party/rust/tokio-stream/src/wrappers/split.rs
@@ -0,0 +1,60 @@
+use crate::Stream;
+use pin_project_lite::pin_project;
+use std::io;
+use std::pin::Pin;
+use std::task::{Context, Poll};
+use tokio::io::{AsyncBufRead, Split};
+
+pin_project! {
+ /// A wrapper around [`tokio::io::Split`] that implements [`Stream`].
+ ///
+ /// [`tokio::io::Split`]: struct@tokio::io::Split
+ /// [`Stream`]: trait@crate::Stream
+ #[derive(Debug)]
+ #[cfg_attr(docsrs, doc(cfg(feature = "io-util")))]
+ pub struct SplitStream<R> {
+ #[pin]
+ inner: Split<R>,
+ }
+}
+
+impl<R> SplitStream<R> {
+ /// Create a new `SplitStream`.
+ pub fn new(split: Split<R>) -> Self {
+ Self { inner: split }
+ }
+
+ /// Get back the inner `Split`.
+ pub fn into_inner(self) -> Split<R> {
+ self.inner
+ }
+
+ /// Obtain a pinned reference to the inner `Split<R>`.
+ #[allow(clippy::wrong_self_convention)] // https://github.com/rust-lang/rust-clippy/issues/4546
+ pub fn as_pin_mut(self: Pin<&mut Self>) -> Pin<&mut Split<R>> {
+ self.project().inner
+ }
+}
+
+impl<R: AsyncBufRead> Stream for SplitStream<R> {
+ type Item = io::Result<Vec<u8>>;
+
+ fn poll_next(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Option<Self::Item>> {
+ self.project()
+ .inner
+ .poll_next_segment(cx)
+ .map(Result::transpose)
+ }
+}
+
+impl<R> AsRef<Split<R>> for SplitStream<R> {
+ fn as_ref(&self) -> &Split<R> {
+ &self.inner
+ }
+}
+
+impl<R> AsMut<Split<R>> for SplitStream<R> {
+ fn as_mut(&mut self) -> &mut Split<R> {
+ &mut self.inner
+ }
+}