python 强制结束线程的坑

时间：2023-03-09 03:28:57
python 强制结束线程的坑

网上流传了两种能强制结束线程的错误姿势

第一种：通过setDaemon来结束线程

http://www.cnblogs.com/jefferybest/archive/2011/10/09/2204050.html

import threading

import time

def mythread(timeout,func):

    tHandle = threading.Thread(target=func)

    tHandle.setDaemon(True)

    tHandle.start()

    tHandle.join(timeout)

    print 'timeout'

def do():

    while 1:

        time.sleep(0.2)

        print 'thread runing'

caller=threading.Thread(target=mythread,args=(1,do))

caller.start()

time.sleep(10)

运行结果，并不会结束。因为setDaemon按照我的理解只跟主线程相关

thread runing

thread runing

thread runing

thread runing

timeout

thread runing

thread runing

thread runing

thread runing

thread runing

thread runing

thread runing

thread runing

第二种通过threading.Thread._Thread__stop()结束线程

import time

import threading

def f():

    while 1:

        time.sleep(0.1)

        print 1

t = threading.Thread(target=f)

t.start()

time.sleep(0.5)

print "Stopping the thread"

threading.Thread._Thread__stop(t)

print "Stopped the thread"

while 1:

    time.sleep(0.1)

    print t.isAlive()

运行结果如下：猜测是_Thread__stop只是设置了线程结束的标记，并没有真正结束线程

1

1

1

1

Stopping the thread

Stopped the thread

1

False

1

False

1

False

1

False

1

False

1

False

1

False

1

False

1

False

1

False

1

False

1

False

1

相关文章