termwiz: avoid emitting a wake event on a spurious pipe wakeup

wez · Jun 3, 2019 · c0e3bdf · c0e3bdf
1 parent ae303fe
commit c0e3bdf
Showing 1 changed file with 4 additions and 2 deletions.
diff --git 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));
+                }
             }
         }