44 lines
1019 B
Python
Executable File
44 lines
1019 B
Python
Executable File
import random
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import asyncio
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from functools import wraps
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def asyncCall(func):
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@wraps(func)
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def wraped_func(*args,**kw):
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task = asyncio.ensure_future(func(*args,**kw))
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asyncio.gather(task)
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return wraped_func
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class Worker:
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def __init__(self,maxtask=50):
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self.semaphore = asyncio.Semaphore(maxtask)
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async def __call__(self,callee,*args,**kw):
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async with self.semaphore:
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return await callee(*args,**kw)
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async def run(self,cmd):
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async with self.semaphore:
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proc = await asyncio.create_subprocess_shell(cmd,
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stdout=asyncio.subprocess.PIPE,
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stderr=asyncio.subprocess.PIPE)
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stdout, stderr = await proc.comunicate()
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return stdout, stderr
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if __name__ == '__main__':
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async def hello(cnt,greeting):
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t = random.randint(1,10)
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await asyncio.sleep(t)
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print(cnt,'cost ',t,'seconds to',greeting)
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async def run():
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w = Worker()
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tasks = [ w(hello,i,'hello world') for i in range(1000) ]
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await asyncio.wait(tasks)
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loop = asyncio.get_event_loop()
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loop.run_until_complete(run())
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