From f9b178b19df6f4f94ce6f97fed078ea84e600e81 Mon Sep 17 00:00:00 2001
From: Alan Somers <asomers@gmail.com>
Date: Sun, 23 Oct 2016 18:28:35 -0600
Subject: [PATCH] impl Send for KEvent

---
 src/sys/event.rs | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/src/sys/event.rs b/src/sys/event.rs
index d44963db03..47d1838968 100644
--- a/src/sys/event.rs
+++ b/src/sys/event.rs
@@ -191,6 +191,15 @@ pub fn kqueue() -> Result<RawFd> {
     Errno::result(res)
 }
 
+
+/*
+ * KEvent can't derive Send because on some operating systems, udata is defined
+ * as a void*.  However, KEvent's public API always treats udata as a uintptr_t,
+ * which is safe to Send.
+ */
+unsafe impl Send for KEvent {
+}
+
 impl KEvent {
     pub fn new(ident: uintptr_t, filter: EventFilter, flags: EventFlag,
                fflags:FilterFlag, data: intptr_t, udata: uintptr_t) -> KEvent {