From 5949aad713289f0fcc8c3c61f7e8c5753af62621 Mon Sep 17 00:00:00 2001
From: luojiebin <luo.jiebin@qq.com>
Date: Sat, 16 Dec 2017 01:10:32 +0800
Subject: [PATCH] Return a Future from finish method of RequestHandler

---
 tornado/web.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tornado/web.py b/tornado/web.py
index f970bd130..3ce507f3d 100644
--- a/tornado/web.py
+++ b/tornado/web.py
@@ -1025,12 +1025,13 @@ class RequestHandler(object):
             # are keepalive connections)
             self.request.connection.set_close_callback(None)
 
-        self.flush(include_footers=True)
+        future = self.flush(include_footers=True)
         self.request.connection.finish()
         self._log()
         self._finished = True
         self.on_finish()
         self._break_cycles()
+        return future
 
     def detach(self):
         """Take control of the underlying stream.
-- 
2.47.3