From 53558cb48964d7e0f2c97687504711ab47bf1890 Mon Sep 17 00:00:00 2001
From: Adam Harvey <adam@adamharvey.name>
Date: Sat, 20 Feb 2021 01:22:51 -0800
Subject: [PATCH] doc: note the EOF behaviour of read_until (#3536)

---
 tokio/src/io/util/async_buf_read_ext.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/tokio/src/io/util/async_buf_read_ext.rs b/tokio/src/io/util/async_buf_read_ext.rs
index 7977a0e8c..233ac31c4 100644
--- a/tokio/src/io/util/async_buf_read_ext.rs
+++ b/tokio/src/io/util/async_buf_read_ext.rs
@@ -23,6 +23,8 @@ cfg_io_util! {
         ///
         /// If successful, this function will return the total number of bytes read.
         ///
+        /// If this function returns `Ok(0)`, the stream has reached EOF.
+        ///
         /// # Errors
         ///
         /// This function will ignore all instances of [`ErrorKind::Interrupted`] and