python生成器异步使用

Posted 2021-01-03 .Tang

 

import dis,time  # 反汇编
import threading

def request():
    print(‘start request‘)
    v = yield
    print(v)


def target(func):
    try:
        s = time.time()
        print(‘start target‘)
        c = func()
        c.send(None)
        time.sleep(7)
        c.send(f‘done: {time.time()-s}‘)
    except StopIteration:
        pass

def server(func):
    threading.Thread(target=target,args=(func,)).start()

server(request)
for i in range(10):
    time.sleep(1)
    print(i)

运行结果

>>>
start target
start request
0
1
2
3
4
5
done: 7.004955053329468
6
7
8
9