On 20/01/20 10:55, Stefan Hajnoczi wrote:
>>
>> [1] https://qemu.readthedocs.io/en/latest/interop/live-block-operations.html
> John and I discussed async events in the past. qmp-shell currently uses
> the input() built-in function. If we modify it with a
> select(2)/poll(2)-style function that monitors both stdin and the QMP
> socket then it could print QMP events as soon as they are received.
I think it should be rewritten using async/await. A simple example:
import asyncio
import sys
from concurrent.futures import ThreadPoolExecutor
async def ainput(prompt: str = ""):
with ThreadPoolExecutor(1, "ainput") as executor:
return (await asyncio.get_event_loop().run_in_executor(
executor, sys.stdin.readline
)).rstrip()
async def numbers():
i = 1
while True:
print(i)
i = i + 1
await asyncio.sleep(1)
async def main():
name = await ainput("What's your name? ")
print("Hello, {}!".format(name))
asyncio.get_event_loop().create_task(numbers())
asyncio.get_event_loop().run_until_complete(main())
This would be a great Summer of Code project. Even an autocompletion
interface using readline should be possible.
Paolo
