From 2ac898f95e4e82e5326429b675c56d346a6d78ea Mon Sep 17 00:00:00 2001
From: Neil Williams <neil@reddit.com>
Date: Mon, 7 Nov 2011 12:10:24 -0800
Subject: [PATCH] Add stale cache support to @memoize.

---
 r2/r2/lib/memoize.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/r2/r2/lib/memoize.py b/r2/r2/lib/memoize.py
index a9568107ff..477276092b 100644
--- a/r2/r2/lib/memoize.py
+++ b/r2/r2/lib/memoize.py
@@ -29,7 +29,7 @@
 
 make_lock = g.make_lock
 
-def memoize(iden, time = 0):
+def memoize(iden, time = 0, stale=False):
     def memoize_fn(fn):
         from r2.lib.memoize import NoneResult
         def new_fn(*a, **kw):
@@ -40,7 +40,7 @@ def new_fn(*a, **kw):
 
             key = make_key(iden, *a, **kw)
 
-            res = None if update else cache.get(key)
+            res = None if update else cache.get(key, stale=stale)
 
             if res is None:
                 # not cached, we should calculate it.