From e0e9594f710aacf33eee9be45c6bdfcb977cc07f Mon Sep 17 00:00:00 2001
From: Yuya Nishihara <yuya@tcha.org>
Date: Thu, 27 Sep 2018 21:49:53 +0900
Subject: [PATCH] process: Implement AsRawFd for ChildStd* structs

---
 src/lib.rs | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/src/lib.rs b/src/lib.rs
index ff5c5077b..e6618a747 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -619,3 +619,27 @@ impl Read for ChildStderr {
 
 impl AsyncRead for ChildStderr {
 }
+
+#[cfg(unix)]
+mod sys {
+    use std::os::unix::io::{AsRawFd, RawFd};
+    use super::{ChildStdin, ChildStdout, ChildStderr};
+
+    impl AsRawFd for ChildStdin {
+        fn as_raw_fd(&self) -> RawFd {
+            self.inner.get_ref().as_raw_fd()
+        }
+    }
+
+    impl AsRawFd for ChildStdout {
+        fn as_raw_fd(&self) -> RawFd {
+            self.inner.get_ref().as_raw_fd()
+        }
+    }
+
+    impl AsRawFd for ChildStderr {
+        fn as_raw_fd(&self) -> RawFd {
+            self.inner.get_ref().as_raw_fd()
+        }
+    }
+}