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  1. import asyncio
  2.  
  3. def create_timer(future, ms):
  4. 	async def inner():
  5. 		await asyncio.sleep(ms/1000)
  6. 		await future
  7. 	return asyncio.create_task(inner)
  8.  
  9.  
  10. def create_interval(future, ms):
  11. 	async def inner():
  12. 		i = 0
  13. 		while True:
  14. 			print(f'{i} round')
  15. 			await asyncio.sleep(ms/1000)
  16. 			await future
  17. 			i += 1
  18. 	return asyncio.create_task(inner())
  19.  
  20.  
  21. async def test_func():
  22. 	print('START TEST FUNC')
  23. 	await asyncio.sleep(1)  # some i/o operation
  24. 	print('END TEST FUNC')
  25.  
  26.  
  27. async def main():
  28. 	print('START MAIN')
  29. 	t1 = create_interval(test_func(), 500)
  30. 	await asyncio.sleep(3)  # long await
  31. 	t1.cancel()
  32. 	print('TASK CANCELLED')
  33. 	await asyncio.sleep(3)
  34. 	print('END MAIN')
  35.  
  36.  
  37. if __name__ == '__main__':
  38. 	asyncio.run(main())
  39.  
  40.  
  41.  
  42.  
Success #stdin #stdout 0.13s 16064KB
comments (?)
stdin
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Standard input is empty
stdout
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START MAIN
0 round
START TEST FUNC
END TEST FUNC
1 round
TASK CANCELLED
END MAIN
https://ideone.com/ChD174
language:
Python 3 (python  3.12)
created:
4 years ago
visibility:
secret

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