Comments (5)
Yes, we should probably have this - I won't be able to add it myself for a while though as I've got bugs to fix elsewhere. Feel free to submit a PR if you want.
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Ok, fine. What about the following? (I'm not sure about the sleep times yet. And I'd actually prefer to implement queue_empty
simpler...)
async def queue_empty(self, timeout=0.1):
if not self.output_queue.empty():
return False
if timeout <= 0.01:
await asyncio.sleep(timeout)
return self.output_queue.empty()
await asyncio.sleep(0.01)
if not self.output_queue.empty():
return False
await asyncio.sleep(timeout - 0.01)
return self.output_queue.empty()
async def queue_count(self, wait=0.1):
await asyncio.sleep(wait)
return self.output_queue.qsize()
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I'd just have one top-level function called communicator.receive_nothing
that raises an (assertion?) error if it does receive something, that just wraps receive_from and catches the TimeoutError
.
from asgiref.
I also thought about doing it that way. But as far as I understand the communicator is closed after this exception which is not what I want in some use cases...
from asgiref.
Ah yes, the timeout will cancel it. I still think calling it receive_nothing
makes sense though, and implement inside that as you see fit (using queue empty detection is fine)
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