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Improve performance of _async_when_setup (#110791)

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* Improve performance of _async_when_setup

Use an event filter to avoid creating a task until the
filter matches

* Improve performance of _async_when_setup

Use an event filter to avoid creating a task until the
filter matches
This commit is contained in:
J. Nick Koston 2024-02-17 10:46:06 -06:00 committed by GitHub
parent c4653be2fa
commit b8143a7944
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1 changed files with 12 additions and 5 deletions
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17
homeassistant/setup.py
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@ -522,12 +522,19 @@ def _async_when_setup(
listener()
await when_setup()
async def _loaded_event(event: core.Event) -> None:
"""Call the callback if we loaded the expected component."""
if event.data[ATTR_COMPONENT] == component:
await _matched_event(event)
@callback
def _async_is_component_filter(event: core.Event) -> bool:
"""Check if the event is for the component."""
event_comp: str = event.data[ATTR_COMPONENT]
return event_comp == component
listeners.append(hass.bus.async_listen(EVENT_COMPONENT_LOADED, _loaded_event))
listeners.append(
hass.bus.async_listen(
EVENT_COMPONENT_LOADED,
_matched_event,
event_filter=_async_is_component_filter,
)
)
if start_event:
listeners.append(
hass.bus.async_listen(EVENT_HOMEASSISTANT_START, _matched_event)