From d0f8705c205c896c1b35c13c3dd7f91d1837d1ee Mon Sep 17 00:00:00 2001
From: Stephen Diehl <stephen.m.diehl@gmail.com>
Date: Tue, 28 Feb 2012 23:31:13 -0500
Subject: [PATCH] Notes about thread saftey of zmq.Context()

---
 zipline/component.py | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/zipline/component.py b/zipline/component.py
index 354118f1..8c6621d9 100644
--- a/zipline/component.py
+++ b/zipline/component.py
@@ -133,7 +133,14 @@ class Component(object):
             import zmq
             self.zmq = zmq
 
+        # TODO: this can cause max fd errors on BSD machines with
+        # low ulimits, its perfectly fine to use one Context in
+        # multithreaded enviroments, its only in multiprocess
+        # systems where this becomes needed. Add this option.
+        # 
+        # http://zeromq.github.com/pyzmq/morethanbindings.html#thread-safety
         self.context = self.zmq.Context()
+
         self.setup_poller()
 
         self.open()