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Clean up Timer tasks #323

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Clean up Timer tasks #323

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19 changes: 11 additions & 8 deletions src/frequenz/channels/timer.py
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Original file line number Diff line number Diff line change
Expand Up @@ -682,14 +682,17 @@ async def ready(self) -> bool: # noqa: DOC502
# could be reset while we are sleeping, in which case we need to recalculate
# the time to the next tick and try again.
while time_to_next_tick > 0:
await next(
asyncio.as_completed(
[
asyncio.sleep(time_to_next_tick / 1_000_000),
self._reset_event.wait(),
]
)
)
tasks = [
asyncio.create_task(asyncio.sleep(time_to_next_tick / 1_000_000)),
asyncio.create_task(self._reset_event.wait()),
]

try:
await next(asyncio.as_completed(tasks))
finally:
tasks[0].cancel()
tasks[1].cancel()

self._reset_event.clear()
now = self._now()
time_to_next_tick = self._next_tick_time - now
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