Add a clear method; prep for 0.2.

1 files changed, 6 insertions, 2 deletions

diff --git a/repoze/lru/__init__.py b/repoze/lru/__init__.py
index b5e5203..94362fb 100644
--- a/repoze/lru/__init__.py
+++ b/repoze/lru/__init__.py
@@ -9,14 +9,18 @@ class LRUCache(object):
         """ Implements a psueudo-LRU algorithm (CLOCK) """
         if size < 1:
             raise ValueError('size must be >1')
+        self.size = size
+        self.lock = threading.Lock()
+        self.clear()
+
+    def clear(self):
+        size = self.size
         self.clock = []
         for i in xrange(0, size):
             self.clock.append({'key':_marker, 'ref':False})
-        self.size = size
         self.maxpos = size - 1
         self.hand = 0
         self.data = {}
-        self.lock = threading.Lock()
 
     def get(self, key, default=None):
         try: