100 lines
1.9 KiB
Python
100 lines
1.9 KiB
Python
# Test Event class
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try:
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import uasyncio as asyncio
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except ImportError:
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print("SKIP")
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raise SystemExit
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import micropython
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try:
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micropython.schedule
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except AttributeError:
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print("SKIP")
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raise SystemExit
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try:
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# Unix port can't select/poll on user-defined types.
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import uselect as select
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poller = select.poll()
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poller.register(asyncio.ThreadSafeFlag())
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except TypeError:
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print("SKIP")
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raise SystemExit
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async def task(id, flag):
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print("task", id)
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await flag.wait()
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print("task", id, "done")
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def set_from_schedule(flag):
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print("schedule")
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flag.set()
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print("schedule done")
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async def main():
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flag = asyncio.ThreadSafeFlag()
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# Set the flag from within the loop.
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t = asyncio.create_task(task(1, flag))
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print("yield")
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await asyncio.sleep(0)
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print("set event")
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flag.set()
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print("yield")
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await asyncio.sleep(0)
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print("wait task")
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await t
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# Set the flag from scheduler context.
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print("----")
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t = asyncio.create_task(task(2, flag))
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print("yield")
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await asyncio.sleep(0)
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print("set event")
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micropython.schedule(set_from_schedule, flag)
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print("yield")
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await asyncio.sleep(0)
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print("wait task")
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await t
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# Flag already set.
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print("----")
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print("set event")
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flag.set()
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t = asyncio.create_task(task(3, flag))
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print("yield")
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await asyncio.sleep(0)
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print("wait task")
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await t
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# Flag set, cleared, and set again.
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print("----")
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print("set event")
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flag.set()
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print("yield")
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await asyncio.sleep(0)
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print("clear event")
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flag.clear()
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print("yield")
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await asyncio.sleep(0)
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t = asyncio.create_task(task(4, flag))
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print("yield")
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await asyncio.sleep(0)
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print("set event")
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flag.set()
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print("yield")
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await asyncio.sleep(0)
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print("wait task")
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await t
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asyncio.run(main())
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