From f51355807692b0d6920b83f2ed6f0124b671b77d Mon Sep 17 00:00:00 2001
From: Paul Osborne <osbpau@gmail.com>
Date: Tue, 19 Feb 2019 22:23:19 -0600
Subject: [PATCH] tokio-reactor: impl AsRawFd for reactor for unix (#890)

In order to support nesting a tokio reactor within another event
system exposing the file descriptor for the underlying reactor
is useful and is already implemented for mio::Poll.

Signed-off-by: Paul Osborne <osbpau@gmail.com>
---
 tokio-reactor/src/lib.rs | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/tokio-reactor/src/lib.rs b/tokio-reactor/src/lib.rs
index b574fcf55..cb83d37bf 100644
--- a/tokio-reactor/src/lib.rs
+++ b/tokio-reactor/src/lib.rs
@@ -74,6 +74,8 @@ use std::sync::atomic::Ordering::{Relaxed, SeqCst};
 use std::sync::atomic::AtomicUsize;
 use std::sync::{Arc, Weak};
 use std::time::{Duration, Instant};
+#[cfg(all(unix, not(target_os = "fuchsia")))]
+use std::os::unix::io::{AsRawFd, RawFd};
 
 use log::Level;
 use mio::event::Evented;
@@ -429,6 +431,13 @@ impl Reactor {
     }
 }
 
+#[cfg(all(unix, not(target_os = "fuchsia")))]
+impl AsRawFd for Reactor {
+    fn as_raw_fd(&self) -> RawFd {
+        self.inner.io.as_raw_fd()
+    }
+}
+
 impl Park for Reactor {
     type Unpark = Handle;
     type Error = io::Error;