From 40bc38bb2f0c28d9f1287b03025a5cbb2876dc79 Mon Sep 17 00:00:00 2001
From: benoitc <bchesneau@gmail.com>
Date: Tue, 27 Aug 2013 11:17:03 +0200
Subject: [PATCH] support wsgi.file_wrapper in async workers

---
 gunicorn/workers/async.py | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/gunicorn/workers/async.py b/gunicorn/workers/async.py
index 1e55789d..9a327132 100644
--- a/gunicorn/workers/async.py
+++ b/gunicorn/workers/async.py
@@ -94,8 +94,11 @@ class AsyncWorker(base.Worker):
             if respiter == ALREADY_HANDLED:
                 return False
             try:
-                for item in respiter:
-                    resp.write(item)
+                if isinstance(respiter, environ['wsgi.file_wrapper']):
+                    resp.write_file(respiter)
+                else:
+                    for item in respiter:
+                        resp.write(item)
                 resp.close()
                 request_time = datetime.now() - request_start
                 self.log.access(resp, req, environ, request_time)