> If the libvirt API (or other Native API) has an async mode, what you > can do is provide a synchronos, python based wrapper that does the > following. > > register_request callback() > async_call() > sleep() > >
This can be set up like a more traditional multi-threaded model as well. You can eventlet.sleep while waiting for the callback handler to notify the greenthread. This of course assumes your i/o and callback are running in a different pthread (eventlet.tpool is fine). So it looks more like: condition = threading.Condition() # or something like it register_request_callback(condition) async_call() condition.wait() I found this post to be enormously helpful in understanding some of the nuances of dealing with green thread and process thread synchronization and communication: http://blog.devork.be/2011/03/synchronising-eventlets-and-threads.html Devin
_______________________________________________ Mailing list: https://launchpad.net/~openstack Post to : openstack@lists.launchpad.net Unsubscribe : https://launchpad.net/~openstack More help : https://help.launchpad.net/ListHelp
