def onRadiation():
# Get back to our main eventlet thread using a Queue
# to transfer the signal from the interrupt thread
# to the main thread.
# TODO Or use a Python socketio client to communicate with this server.
q.put_nowait(None)
def listenToQueue():
while 1:
try:
data = q.get_nowait()
socketio.emit("ray", data)
readings = radiationWatch.status()
readings["timestamp"] = datetime.datetime.now().isoformat() + "Z"
# Send current readings.
socketio.emit("readings", readings, json=True)
# Persist historical data.
history.append(readings)
while len(history) > HISTORY_LENGTH:
del history[0]
# Dispatch readings.
forwarder.dispatch(readings)
except queue.Empty:
eventlet.sleep(0.1)
eventlet.spawn_n(listenToQueue)
radiationWatch.registerRadiationCallback(onRadiation)
