From 36d22d82aa202bb199967e9512281e9a53db42c9 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 21:33:14 +0200
Subject: Adding upstream version 115.7.0esr.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 third_party/rust/futures-util/src/sink/close.rs | 32 +++++++++++++++++++++++++
 1 file changed, 32 insertions(+)
 create mode 100644 third_party/rust/futures-util/src/sink/close.rs

(limited to 'third_party/rust/futures-util/src/sink/close.rs')

diff --git a/third_party/rust/futures-util/src/sink/close.rs b/third_party/rust/futures-util/src/sink/close.rs
new file mode 100644
index 0000000000..43eea74b0f
--- /dev/null
+++ b/third_party/rust/futures-util/src/sink/close.rs
@@ -0,0 +1,32 @@
+use core::marker::PhantomData;
+use core::pin::Pin;
+use futures_core::future::Future;
+use futures_core::task::{Context, Poll};
+use futures_sink::Sink;
+
+/// Future for the [`close`](super::SinkExt::close) method.
+#[derive(Debug)]
+#[must_use = "futures do nothing unless you `.await` or poll them"]
+pub struct Close<'a, Si: ?Sized, Item> {
+    sink: &'a mut Si,
+    _phantom: PhantomData<fn(Item)>,
+}
+
+impl<Si: Unpin + ?Sized, Item> Unpin for Close<'_, Si, Item> {}
+
+/// A future that completes when the sink has finished closing.
+///
+/// The sink itself is returned after closing is complete.
+impl<'a, Si: Sink<Item> + Unpin + ?Sized, Item> Close<'a, Si, Item> {
+    pub(super) fn new(sink: &'a mut Si) -> Self {
+        Self { sink, _phantom: PhantomData }
+    }
+}
+
+impl<Si: Sink<Item> + Unpin + ?Sized, Item> Future for Close<'_, Si, Item> {
+    type Output = Result<(), Si::Error>;
+
+    fn poll(mut self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Self::Output> {
+        Pin::new(&mut self.sink).poll_close(cx)
+    }
+}
-- 
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