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#!/usr/bin/env python3

# -*- coding: utf-8 -*-

# Author: xurongzhong#126.com wechat:pythontesting qq:37391319

# CreateDate: 2018-1-26

# From https://pymotw.com/3/asyncio/coroutines.html

# asyncio_event.py

import asyncio

import functools

def set_event(event):

print('setting event in callback')

event.set()

async def coro1(event):

print('coro1 waiting for event')

await event.wait()

print('coro1 triggered')

async def coro2(event):

print('coro2 waiting for event')

await event.wait()

print('coro2 triggered')

async def main(loop):

# Create a shared event

event = asyncio.Event()

print('event start state: {}'.format(event.is_set()))

loop.call_later(

0.1, functools.partial(set_event, event)

)

await asyncio.wait([coro1(event), coro2(event)])

print('event end state: {}'.format(event.is_set()))

event_loop = asyncio.get_event_loop()

try:

event_loop.run_until_complete(main(event_loop))

finally:

event_loop.close()