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60 lines
2.1 KiB
Python
60 lines
2.1 KiB
Python
import asyncio
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import types
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def name_that_thing(thing):
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"""
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Returns either the function/class path or just the object's repr
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"""
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# Instance method
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if hasattr(thing, "im_class"):
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# Mocks will recurse im_class forever
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if hasattr(thing, "mock_calls"):
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return "<mock>"
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return name_that_thing(thing.im_class) + "." + thing.im_func.func_name
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# Other named thing
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if hasattr(thing, "__name__"):
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if hasattr(thing, "__class__") and not isinstance(
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thing, (types.FunctionType, types.MethodType)
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):
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if thing.__class__ is not type and not issubclass(thing.__class__, type):
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return name_that_thing(thing.__class__)
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if hasattr(thing, "__self__"):
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return "%s.%s" % (thing.__self__.__module__, thing.__self__.__name__)
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if hasattr(thing, "__module__"):
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return "%s.%s" % (thing.__module__, thing.__name__)
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# Generic instance of a class
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if hasattr(thing, "__class__"):
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return name_that_thing(thing.__class__)
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return repr(thing)
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async def await_many_dispatch(consumer_callables, dispatch):
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"""
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Given a set of consumer callables, awaits on them all and passes results
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from them to the dispatch awaitable as they come in.
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"""
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# Call all callables, and ensure all return types are Futures
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tasks = [
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asyncio.ensure_future(consumer_callable())
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for consumer_callable in consumer_callables
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]
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try:
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while True:
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# Wait for any of them to complete
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await asyncio.wait(tasks, return_when=asyncio.FIRST_COMPLETED)
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# Find the completed one(s), yield results, and replace them
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for i, task in enumerate(tasks):
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if task.done():
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result = task.result()
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await dispatch(result)
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tasks[i] = asyncio.ensure_future(consumer_callables[i]())
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finally:
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# Make sure we clean up tasks on exit
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for task in tasks:
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task.cancel()
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try:
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await task
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except asyncio.CancelledError:
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pass
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