36 lines
996 B
Python
36 lines
996 B
Python
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import asyncio
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import typing
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from starlette.concurrency import run_in_threadpool
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class BackgroundTask:
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def __init__(
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self, func: typing.Callable, *args: typing.Any, **kwargs: typing.Any
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) -> None:
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self.func = func
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self.args = args
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self.kwargs = kwargs
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self.is_async = asyncio.iscoroutinefunction(func)
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async def __call__(self) -> None:
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if self.is_async:
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await self.func(*self.args, **self.kwargs)
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else:
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await run_in_threadpool(self.func, *self.args, **self.kwargs)
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class BackgroundTasks(BackgroundTask):
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def __init__(self, tasks: typing.Sequence[BackgroundTask] = []):
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self.tasks = list(tasks)
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def add_task(
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self, func: typing.Callable, *args: typing.Any, **kwargs: typing.Any
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) -> None:
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task = BackgroundTask(func, *args, **kwargs)
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self.tasks.append(task)
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async def __call__(self) -> None:
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for task in self.tasks:
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await task()
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