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Fix ADS race condition (#21677)

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This commit is contained in:
carstenschroeder 2019-03-05 11:07:40 +01:00 committed by Martin Hjelmare
parent 0e78054195
commit 17c3c14833
1 changed files with 5 additions and 5 deletions
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10
homeassistant/components/ads/__init__.py
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@ -171,13 +171,12 @@ class AdsHub:
hnotify, huser = self._client.add_device_notification(
name, attr, self._device_notification_callback)
hnotify = int(hnotify)
self._notification_items[hnotify] = NotificationItem(
hnotify, huser, name, plc_datatype, callback)
_LOGGER.debug(
"Added device notification %d for variable %s", hnotify, name)
self._notification_items[hnotify] = NotificationItem(
hnotify, huser, name, plc_datatype, callback)
def _device_notification_callback(self, notification, name):
"""Handle device notifications."""
contents = notification.contents
@ -187,9 +186,10 @@ class AdsHub:
data = contents.data
try:
notification_item = self._notification_items[hnotify]
with self._lock:
notification_item = self._notification_items[hnotify]
except KeyError:
_LOGGER.debug("Unknown device notification handle: %d", hnotify)
_LOGGER.error("Unknown device notification handle: %d", hnotify)
return
# Parse data to desired datatype