From 9b0980659321f9b90bff21e435335d37de0434a4 Mon Sep 17 00:00:00 2001
From: k-nasa <htilcs1115@gmail.com>
Date: Tue, 15 Oct 2019 21:44:11 +0900
Subject: [PATCH] feat: Add Stdin::lock

---
 src/io/stdin.rs | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

diff --git a/src/io/stdin.rs b/src/io/stdin.rs
index 95a77b8..f6c4a25 100644
--- a/src/io/stdin.rs
+++ b/src/io/stdin.rs
@@ -1,3 +1,4 @@
+use lazy_static::lazy_static;
 use std::pin::Pin;
 use std::sync::Mutex;
 
@@ -134,6 +135,35 @@ impl Stdin {
         })
         .await
     }
+
+    /// Locks this handle to the standard input stream, returning a readable guard.
+    ///
+    /// The lock is released when the returned lock goes out of scope. The returned guard also implements the Read and BufRead traits for accessing the underlying data.
+    ///
+    /// # Examples
+    ///
+    /// ```no_run
+    /// # fn main() -> std::io::Result<()> { async_std::task::block_on(async {
+    /// #
+    /// use async_std::io;
+    /// use std::io::Read;
+    ///
+    /// let mut buffer = String::new();
+    ///
+    /// let stdin = io::stdin();
+    /// let mut handle = stdin.lock().await;
+    ///
+    /// handle.read_to_string(&mut buffer)?;
+    /// #
+    /// # Ok(()) }) }
+    /// ```
+    pub async fn lock(&self) -> std::io::StdinLock<'static> {
+        lazy_static! {
+            static ref STDIN: std::io::Stdin = std::io::stdin();
+        }
+
+        STDIN.lock()
+    }
 }
 
 impl Read for Stdin {