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20948a3d54
It should take 0 time to await on a negative sleep. Signed-off-by: Damien George <damien@micropython.org>
52 lines
912 B
Python
52 lines
912 B
Python
try:
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import uasyncio as asyncio
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except ImportError:
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try:
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import asyncio
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except ImportError:
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print("SKIP")
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raise SystemExit
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try:
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import utime
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ticks = utime.ticks_ms
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ticks_diff = utime.ticks_diff
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except:
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import time
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ticks = lambda: int(time.time() * 1000)
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ticks_diff = lambda t1, t0: t1 - t0
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async def delay_print(t, s):
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await asyncio.sleep(t)
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print(s)
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async def main():
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print("start")
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await asyncio.sleep(0.001)
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print("after sleep")
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t0 = ticks()
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await delay_print(0.02, "short")
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t1 = ticks()
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await delay_print(0.04, "long")
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t2 = ticks()
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await delay_print(-1, "negative")
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t3 = ticks()
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print(
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"took {} {} {}".format(
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round(ticks_diff(t1, t0), -1),
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round(ticks_diff(t2, t1), -1),
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round(ticks_diff(t3, t2), -1),
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)
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)
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asyncio.run(main())
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