From 8b44077ebcf1b1077e76958af3f4bf865406f6de Mon Sep 17 00:00:00 2001
From: Alice Ryhl <aliceryhl@google.com>
Date: Thu, 9 Feb 2023 13:07:52 +0100
Subject: [PATCH] sync: make CancellationToken UnwindSafe (#5438)

---
 tokio-util/src/sync/cancellation_token.rs | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/tokio-util/src/sync/cancellation_token.rs b/tokio-util/src/sync/cancellation_token.rs
index fbceb2eeb..c44be6986 100644
--- a/tokio-util/src/sync/cancellation_token.rs
+++ b/tokio-util/src/sync/cancellation_token.rs
@@ -55,6 +55,9 @@ pub struct CancellationToken {
     inner: Arc<tree_node::TreeNode>,
 }
 
+impl std::panic::UnwindSafe for CancellationToken {}
+impl std::panic::RefUnwindSafe for CancellationToken {}
+
 pin_project! {
     /// A Future that is resolved once the corresponding [`CancellationToken`]
     /// is cancelled.