From d453f1e38a32bf3e5d62fc29e71009b73fe67cb6 Mon Sep 17 00:00:00 2001
From: Liu Jiang <gerry@linux.alibaba.com>
Date: Tue, 15 Feb 2022 12:32:28 +0800
Subject: [PATCH] runc: implement Io for Arc<T: Io>

Add an implementation of `impl<T: Io> Io for Arc<T>`.

Signed-off-by: Liu Jiang <gerry@linux.alibaba.com>
---
 crates/runc/src/io.rs | 25 ++++++++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/crates/runc/src/io.rs b/crates/runc/src/io.rs
index 95493fe..29277fe 100644
--- a/crates/runc/src/io.rs
+++ b/crates/runc/src/io.rs
@@ -16,8 +16,9 @@
 use std::fmt::{self, Debug, Formatter};
 use std::fs::File;
 use std::io::Result;
+use std::ops::Deref;
 use std::os::unix::io::{AsRawFd, FromRawFd};
-use std::sync::Mutex;
+use std::sync::{Arc, Mutex};
 
 use nix::unistd::{Gid, Uid};
 
@@ -53,6 +54,28 @@ impl Debug for dyn Io {
     }
 }
 
+impl<T: Io> Io for Arc<T> {
+    fn stdin(&self) -> Option<File> {
+        self.deref().stdin()
+    }
+
+    fn stdout(&self) -> Option<File> {
+        self.deref().stdout()
+    }
+
+    fn stderr(&self) -> Option<File> {
+        self.deref().stderr()
+    }
+
+    fn set(&self, cmd: &mut Command) -> Result<()> {
+        self.deref().set(cmd)
+    }
+
+    fn close_after_start(&self) {
+        self.deref().close_after_start()
+    }
+}
+
 #[derive(Debug, Clone)]
 pub struct IOOption {
     pub open_stdin: bool,