From c0e3bdfb705d74ce7dfa0f2f563fb82d5454b952 Mon Sep 17 00:00:00 2001
From: Wez Furlong <wez@wezfurlong.org>
Date: Sun, 2 Jun 2019 18:27:15 -0700
Subject: [PATCH] termwiz: avoid emitting a wake event on a spurious pipe
 wakeup

---
 termwiz/src/terminal/unix.rs | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/termwiz/src/terminal/unix.rs b/termwiz/src/terminal/unix.rs
index 62fc676942c..995bac54600 100644
--- a/termwiz/src/terminal/unix.rs
+++ b/termwiz/src/terminal/unix.rs
@@ -457,8 +457,10 @@ impl Terminal for UnixTerminal {
 
         if pfd[2].revents != 0 {
             let mut buf = [0u8; 64];
-            if self.wake_pipe.read(&mut buf).is_ok() {
-                return Ok(Some(InputEvent::Wake));
+            if let Ok(n) = self.wake_pipe.read(&mut buf) {
+                if n > 0 {
+                    return Ok(Some(InputEvent::Wake));
+                }
             }
         }