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Original file line number | Diff line number | Diff line change |
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@@ -1,26 +1,40 @@ | ||
import asyncio | ||
from typing import Callable | ||
import logging | ||
from typing import Callable, Optional | ||
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logger = logging.getLogger(__name__) | ||
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class AsyncTimer: | ||
def __init__(self, callback: Callable, timer_calc: Callable[[int], int]): | ||
self.callback = callback | ||
self.timer_calc = timer_calc | ||
self.timer = None | ||
self.tries = 0 | ||
self.timer: Optional[asyncio.Task] = None | ||
self.tries: int = 0 | ||
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def reset(self): | ||
self.tries = 0 | ||
if self.timer: | ||
if self.timer and not self.timer.done(): | ||
self.timer.cancel() | ||
self.timer = None | ||
logger.debug( | ||
"AsyncTimer has been reset and any scheduler tasks have been cancelled" | ||
) | ||
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def schedule_timeout(self): | ||
if self.timer: | ||
self.timer.cancel() | ||
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self.timer = asyncio.create_task(self._run_timer()) | ||
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async def _run_timer(self): | ||
await asyncio.sleep(self.timer_calc(self.tries + 1)) | ||
self.tries += 1 | ||
await self.callback() | ||
delay = self.timer_calc(self.tries + 1) | ||
logger.debug(f"Scheduling callback to run after {delay} seconds.") | ||
self.timer = asyncio.create_task(self._run_timer(delay)) | ||
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async def _run_timer(self, delay: float): | ||
try: | ||
await asyncio.sleep(delay) | ||
await self.callback() | ||
except asyncio.CancelledError: | ||
logger.debug("AsyncTimer task was cancelled.") | ||
except Exception as e: | ||
logger.exception(f"Error in AsyncTimer callback: {e}") |