Added a reset method, a couple more tests, and fixed a slight bug (IndexError being raised from the wrong place)

src/structures.py

@@ -305,7 +305,11 @@ class TimeoutQueue(object):
         self.queue = queue
         self.timeout = timeout
 
+    def reset(self):
+        self.queue.reset()
+
     def __repr__(self):
+        self._clearOldElements()
         return '%s(timeout=%r, queue=%r)' % (self.__class__.__name__,
                                              self.timeout, self.queue)
 
@@ -317,7 +321,7 @@ class TimeoutQueue(object):
 
     def _clearOldElements(self):
         now = time.time()
-        while now - self.queue.peek()[0] > self._getTimeout():
+        while self.queue and now - self.queue.peek()[0] > self._getTimeout():
             self.queue.dequeue()
 
     def setTimeout(self, i):

test/test_structures.py

@@ -605,10 +605,18 @@ class TestTimeoutQueue(SupyTestCase):
         q = TimeoutQueue(1)
         q.enqueue(1)
         self.failUnless(1 in q)
+        self.failUnless(1 in q) # For some reason, the second one might fail.
         self.failIf(2 in q)
         time.sleep(1.1)
         self.failIf(1 in q)
 
+    def testReset(self):
+        q = TimeoutQueue(10)
+        q.enqueue(1)
+        self.failUnless(1 in q)
+        q.reset()
+        self.failIf(1 in q)
+
 
 # vim:set shiftwidth=4 tabstop=8 expandtab textwidth=78: