From d689c21283ca6891febcf2dd954aa63880112e9e Mon Sep 17 00:00:00 2001
From: Kovid Goyal <kovid@kovidgoyal.net>
Date: Tue, 26 Jun 2018 18:20:46 +0530
Subject: [PATCH] Fix pasting large amounts of text very slow.

Fixes #682

Apparently when refactoring child.py I somehow lost the code to make the
child fd non-blocking.
---
 kitty/child.py | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kitty/child.py b/kitty/child.py
index 7e99aec3c..123ac89a8 100644
--- a/kitty/child.py
+++ b/kitty/child.py
@@ -83,6 +83,7 @@ class Child:
         if stdin is not None:
             os.close(stdin_read_fd)
             fast_data_types.thread_write(stdin_write_fd, stdin)
+        fcntl.fcntl(self.child_fd, fcntl.F_SETFL, fcntl.fcntl(self.child_fd, fcntl.F_GETFL) | os.O_NONBLOCK)
         return pid
 
     @property