def datachange_callback(self, handle, value, error=None):
if error:
self.logger.info(
"subscription %s: datachange callback called with handle '%s' and erorr '%s'",
self, handle, error)
self.trigger_statuschange(error)
else:
self.logger.info(
"subscription %s: datachange callback called with handle '%s' and value '%s'",
self, handle, value.Value)
event = ua.MonitoredItemNotification()
with self._lock:
mid = self._monitored_datachange[handle]
mdata = self._monitored_items[mid]
mdata.mvalue.set_current_value(value.Value.Value)
if mdata.filter:
deadband_flag_pass = self.deadband_callback(
mdata.mvalue, mdata.filter)
else:
deadband_flag_pass = True
if deadband_flag_pass:
event.ClientHandle = mdata.client_handle
event.Value = value
self.isub.enqueue_datachange_event(mid, event,
mdata.queue_size)
def datachange_callback(self, handle, value):
self.logger.info("subscription %s: datachange callback called with handle '%s' and value '%s'", self, handle, value.Value)
event = ua.MonitoredItemNotification()
with self._lock:
mid = self._monitored_datachange[handle]
mdata = self._monitored_items[mid]
event.ClientHandle = mdata.client_handle
event.Value = value
self.isub.enqueue_datachange_event(mid, event, mdata.parameters.RevisedQueueSize)