From: Guido van Rossum <guido@python.org>
Date: Fri, 10 Jan 2014 21:28:59 +0000 (-0800)
Subject: asyncio: Fix race in subprocess transport, by Victor Stinner.
X-Git-Tag: v3.4.0b3~185
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=4835f17c247cc9687c59f2faa6f69573f90d876e;p=python

asyncio: Fix race in subprocess transport, by Victor Stinner.
---

diff --git a/Lib/asyncio/unix_events.py b/Lib/asyncio/unix_events.py
index eb3fb9f91c..80a98f806e 100644
--- a/Lib/asyncio/unix_events.py
+++ b/Lib/asyncio/unix_events.py
@@ -160,9 +160,10 @@ class _UnixSelectorEventLoop(selector_events.BaseSelectorEventLoop):
             transp = _UnixSubprocessTransport(self, protocol, args, shell,
                                               stdin, stdout, stderr, bufsize,
                                               extra=None, **kwargs)
+            yield from transp._post_init()
             watcher.add_child_handler(transp.get_pid(),
                                       self._child_watcher_callback, transp)
-        yield from transp._post_init()
+
         return transp
 
     def _child_watcher_callback(self, pid, returncode, transp):