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https://github.com/avatao-content/baseimage-tutorial-framework
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Fix EventHandler subscriptions being registered several times
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@ -1,5 +1,4 @@
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import sys
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import tornado
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import zmq
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from tornado.web import Application
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@ -2,9 +2,10 @@ from transitions import Machine
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class FSMBase:
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states, transitions, message_handlers = [], [], []
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states, transitions = [], []
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def __init__(self, initial: str = None):
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self.message_handlers = []
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self.machine = Machine(model=self,
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states=self.states,
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transitions=self.transitions,
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@ -8,9 +8,11 @@ log = logging.getLogger(__name__)
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class ZMQWebSocketHandler(WebSocketHandler):
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_event_handler_connector = EventHandlerConnector() #<--------------------. TODO: how is __init__()
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# fix: made it static | TODO: called more than once?
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def __init__(self, application, request, **kwargs): #---------------------'
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_event_handler_connector = EventHandlerConnector() #----.
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# TODO: investigate thread safety! <-----------------'
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# ZMQ sockets shared between several WebSocketHandler instances
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# http://pyzmq.readthedocs.io/en/latest/morethanbindings.html#thread-safety
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def __init__(self, application, request, **kwargs):
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super().__init__(application, request, **kwargs)
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def open(self, *args, **kwargs):
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