From 498b1f62dbdf55837d16fcaea9758af0cbebec0d Mon Sep 17 00:00:00 2001
From: Victor Stinner <victor.stinner@gmail.com>
Date: Mon, 26 Jan 2015 22:43:39 +0100
Subject: [PATCH] asyncio, _overlapped.ConnectPipe(): release the GIL

---
 Modules/overlapped.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/Modules/overlapped.c b/Modules/overlapped.c
index 1a081ecb770..ef77c8875aa 100644
--- a/Modules/overlapped.c
+++ b/Modules/overlapped.c
@@ -1146,10 +1146,13 @@ ConnectPipe(OverlappedObject *self, PyObject *args)
     if (Address == NULL)
         return NULL;
 
+    Py_BEGIN_ALLOW_THREADS
     PipeHandle = CreateFileW(Address,
                              GENERIC_READ | GENERIC_WRITE,
                              0, NULL, OPEN_EXISTING,
                              FILE_FLAG_OVERLAPPED, NULL);
+    Py_END_ALLOW_THREADS
+
     PyMem_Free(Address);
     if (PipeHandle == INVALID_HANDLE_VALUE)
         return SetFromWindowsErr(0);