On 7/27/07, Phil Christensen
host_tree = {} host_tree_lock = threading.BoundedSemaphore
def get_application(env): global host_tree, host_tree_lock
host = env.get('HTTP_HOST', env['SERVER_NAME'])
host_tree_lock.acquire()
[bunch of stuff]
host_tree_lock.release()
return app
The only variable shared between threads is the `host_tree` global (the `env` variable is the WSGI environment, which is unique per thread, and the resulting `app` object is immutable). This works for me and is sufficient for my needs, but I'd appreciate a sanity check from anyone with some thread karma to spare.
The most immediately obvious problem is that you're not protecting yourself from an error in the code between the acquire and the release. You'll want to start a try: block immediately after the acquire and move the release into a finally: block. -- Christopher Armstrong International Man of Twistery http://radix.twistedmatrix.com/ http://twistedmatrix.com/ http://canonical.com/