5
我在理解如何將新任務掛起到已經運行的事件循環時遇到問題。瞭解asyncio已經永久運行循環和待處理任務
此代碼:
import asyncio
import logging
@asyncio.coroutine
def blocking(cmd):
while True:
logging.info("in blocking coroutine")
yield from asyncio.sleep(0.01)
print("ping")
def main():
logging.info("in main funciton")
loop = asyncio.get_event_loop()
logging.info("new loop created")
logging.info("loop running forever")
loop.run_forever()
asyncio.async(blocking("ls"))
logging.basicConfig(level = logging.INFO)
main()
更改run_forever()
到run_until_complete(asyncio.async(blocking("ls"))
工作正常。但是我很困惑 - 爲什麼我不能在已經運行的循環上掛任務?