asyncio, _overlapped.ConnectPipe(): release the GIL
diff --git a/Modules/overlapped.c b/Modules/overlapped.c
index 1a081ec..ef77c88 100644
--- a/Modules/overlapped.c
+++ b/Modules/overlapped.c
@@ -1146,10 +1146,13 @@
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);