Python 捕获terminate信号优雅关闭进程

信号捕获在window上测试没有生效，在Linux上测试生效

import multiprocessing
import time
import signal
import os
import random

sid = 0   # 全局变量，进程之间的变量是否独立测试

def myhandler(signum, frame):
    global sid
    print(signum)
    print(sid)
    print("del del")
    exit()

def test():
    global sid
    signal.signal(signal.SIGTERM, myhandler) # 定义捕获信号和关闭时的处理函数
    counter = 0
    sid = random.randint(0,100)
    while True:
        print(counter, sid)
        counter +=1
        time.sleep(1)


if __name__=="__main__":
    p = multiprocessing.Process(target=test)
    p.start()
    p1 = multiprocessing.Process(target=test)
    p1.start()
    p1.join(5)
    if p1.is_alive():
        print(p1.pid)
        print("Process Timeout, be Terminated !!!")
        p1.terminate() # 发送关闭信号
        p1.join()
        p.terminate()
        p.join()
    print(sid)