--- a/iro/main.py	Fri Mar 30 02:25:20 2012 +0200
+++ b/iro/main.py	Fri Mar 30 11:23:22 2012 +0200
@@ -10,6 +10,13 @@
 from . import config
 
 def runReactor(reactor, engine, port, root):
+    """start reactor.
+    
+    :param reactor: twisted reactor
+    :param engine: sqlalchemy engine
+    :param integer port: port to listen to
+    :param `twisted.web.resource.Resource` root: resource to share
+    """
     setEngine(engine)
     startPool(reactor)
     setPool(dbPool)