From 1c32d4fb71ec97001c0bc264835c2c4d95787297 Mon Sep 17 00:00:00 2001
From: Sebastien Bourdeauducq <sb@m-labs.hk>
Date: Wed, 13 Jul 2016 11:35:16 +0800
Subject: [PATCH] monkey-patch Python 3.5.2 to disable broken
 asyncio.base_events._ipaddr_info optimization (#506)

---
 artiq/monkey_patches.py        | 13 +++++++++++++
 artiq/protocols/broadcast.py   |  1 +
 artiq/protocols/logging.py     |  1 +
 artiq/protocols/pc_rpc.py      |  1 +
 artiq/protocols/sync_struct.py |  1 +
 5 files changed, 17 insertions(+)
 create mode 100644 artiq/monkey_patches.py

diff --git a/artiq/monkey_patches.py b/artiq/monkey_patches.py
new file mode 100644
index 000000000..eeabe5f0f
--- /dev/null
+++ b/artiq/monkey_patches.py
@@ -0,0 +1,13 @@
+import sys
+
+
+__all__ = []
+
+
+if sys.version_info[:3] == (3, 5, 2):
+    import asyncio
+
+    # See https://github.com/m-labs/artiq/issues/506
+    def _ipaddr_info(host, port, family, type, proto):
+        return None
+    asyncio.base_events._ipaddr_info = _ipaddr_info
diff --git a/artiq/protocols/broadcast.py b/artiq/protocols/broadcast.py
index 636bad6e1..9cffc6b78 100644
--- a/artiq/protocols/broadcast.py
+++ b/artiq/protocols/broadcast.py
@@ -1,5 +1,6 @@
 import asyncio
 
+from artiq.monkey_patches import *
 from artiq.protocols import pyon
 from artiq.protocols.asyncio_server import AsyncioServer
 
diff --git a/artiq/protocols/logging.py b/artiq/protocols/logging.py
index 0c600e288..b166f969b 100644
--- a/artiq/protocols/logging.py
+++ b/artiq/protocols/logging.py
@@ -2,6 +2,7 @@ import asyncio
 import logging
 import re
 
+from artiq.monkey_patches import *
 from artiq.protocols.asyncio_server import AsyncioServer
 from artiq.tools import TaskObject, MultilineFormatter
 
diff --git a/artiq/protocols/pc_rpc.py b/artiq/protocols/pc_rpc.py
index 1ba4b17c4..1f56481b2 100644
--- a/artiq/protocols/pc_rpc.py
+++ b/artiq/protocols/pc_rpc.py
@@ -19,6 +19,7 @@ import logging
 import inspect
 from operator import itemgetter
 
+from artiq.monkey_patches import *
 from artiq.protocols import pyon
 from artiq.protocols.asyncio_server import AsyncioServer as _AsyncioServer
 from artiq.protocols.packed_exceptions import *
diff --git a/artiq/protocols/sync_struct.py b/artiq/protocols/sync_struct.py
index ce6479e7b..59bced790 100644
--- a/artiq/protocols/sync_struct.py
+++ b/artiq/protocols/sync_struct.py
@@ -14,6 +14,7 @@ import asyncio
 from operator import getitem
 from functools import partial
 
+from artiq.monkey_patches import *
 from artiq.protocols import pyon
 from artiq.protocols.asyncio_server import AsyncioServer