[Python-Dev] cpython: Issue #20311: asyncio: Add a granularity attribute to BaseEventLoop: maximum

Antoine Pitrou solipsis at pitrou.net
Sat Jan 25 22:35:34 CET 2014


On Sat, 25 Jan 2014 15:02:56 +0100 (CET)
victor.stinner <python-checkins at python.org> wrote:
> +
> +        @tasks.coroutine
> +        def wait():
> +            loop = self.loop
> +            calls.append(loop._run_once_counter)
> +            yield from tasks.sleep(loop.granularity * 10, loop=loop)
> +            calls.append(loop._run_once_counter)
> +            yield from tasks.sleep(loop.granularity / 10, loop=loop)
> +            calls.append(loop._run_once_counter)
> +
> +        self.loop.run_until_complete(wait())
> +        calls.append(self.loop._run_once_counter)
> +        self.assertEqual(calls, [1, 3, 5, 6])

Could you add a comment explaining the number of calls to run_once()?
For example, why does it jump from 1 to 3 and then 3 to 5, rather than
1 to 2 and then 2 to 3?

Regards

Antoine.




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