On Thu, Feb 28, 2013 at 04:13:36PM +0800, can. wrote:
> Hi there,
>
> I'm trying to figure out ryu's event mechanism by sending and receiving an
> event. Below is the test code I wrote:
> ---------
> from ryu.base import app_manager
> from ryu.controller import event, handler
>
> class Hehe(app_manager.RyuApp):
>
> class Event_1(event.EventBase):
> def __init__(self):
> super(Hehe.Event_1, self).__init__()
> self.msg = 'event 1'
>
> def __init__(self):
> super(Hehe, self).__init__()
> self.event = Hehe.Event_1()
> self.register_observer(Hehe.Event_1, self.name)
>
> def ping(self):
> self.send_event_to_observers(self.Event_1())
> print 'pinging...'
>
> @handler.set_ev_cls(Hehe.Event_1)
> def pong(self, event):
> print 'Got ya', event.msg
> ---------
> I put the script in ryu/app, and ran it with "ryu-manager event.py".
> But I got a NameError stating that "name 'Hehe' is not defined" in line
> "@handler.set_ev_cls(Hehe.Event_1)".
> What do I miss? I need some help about this minimal example of raising and
> handling an event(especially a self-defined event).
> Thank you in advance.
When calling the decorator, @handler.set_ev_cls(Hehe.Event_1),
the class Hehe isn't defined yet. It's being defined.
the definition isn't finished yet So the referncing Hehe.Event_1 fails.
Moving out Event_1 out of class Hehe would work, I guess.
Class Event_1(event.EventBase):
...
class Hehe(...):
...
@handler.set_ev_class(Event_1)
def pong(...)
thanks,
>
> --
> Best regards,
> Can Zhang
> ------------------------------------------------------------------------------
> Everyone hates slow websites. So do we.
> Make your web apps faster with AppDynamics
> Download AppDynamics Lite for free today:
> http://p.sf.net/sfu/appdyn_d2d_feb
> _______________________________________________
> Ryu-devel mailing list
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> https://lists.sourceforge.net/lists/listinfo/ryu-devel
--
yamahata
------------------------------------------------------------------------------
Everyone hates slow websites. So do we.
Make your web apps faster with AppDynamics
Download AppDynamics Lite for free today:
http://p.sf.net/sfu/appdyn_d2d_feb
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