46 lines
1000 B
Python
46 lines
1000 B
Python
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import trio
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import tractor
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log = tractor.log.get_logger('multiportal')
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async def stream_data(seed=10):
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log.info("Starting stream task")
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for i in range(seed):
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yield i
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await trio.sleep(0) # trigger scheduler
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async def stream_from_portal(p, consumed):
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async for item in await p.run(stream_data):
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if item in consumed:
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consumed.remove(item)
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else:
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consumed.append(item)
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async def main():
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async with tractor.open_nursery(loglevel='info') as an:
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p = await an.start_actor('stream_boi', enable_modules=[__name__])
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consumed = []
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async with trio.open_nursery() as n:
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for i in range(2):
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n.start_soon(stream_from_portal, p, consumed)
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# both streaming consumer tasks have completed and so we should
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# have nothing in our list thanks to single threadedness
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assert not consumed
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await an.cancel()
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if __name__ == '__main__':
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trio.run(main)
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