From 337c2047adfe799b4f3063ace0cae54eef3be167 Mon Sep 17 00:00:00 2001
From: "R. Tyler Ballance" <tyler@monkeypox.org>
Date: Tue, 24 Aug 2010 13:00:23 -0700
Subject: [PATCH] Add support for using signal.setitimer or the itimer module
 for blocking detection

The itimer module can be found here: http://github.com/slideinc/itimer
for versions of Python prior to 2.6
---
 eventlet/hubs/hub.py | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/eventlet/hubs/hub.py b/eventlet/hubs/hub.py
index 0f9d0cb..ebcabc5 100644
--- a/eventlet/hubs/hub.py
+++ b/eventlet/hubs/hub.py
@@ -4,10 +4,15 @@ import traceback
 import warnings
 import signal
 
-HAS_ITIMER = False
+alarm_func = signal.alarm
+
 try:
-    import itimer
-    HAS_ITIMER = True
+    if hasattr(signal, 'setitimer'):
+        HAS_ITIMER = True
+    else:
+        import itimer
+        HAS_ITIMER = True
+        alarm_func = itimer.alarm
 except ImportError:
     pass