python的多线程示例

iteye_11495

于 2015-02-09 14:17:00 发布

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文章标签： python shell

本文介绍了一个使用Python实现的多线程Ping测试脚本。该脚本通过创建多个线程来并发地对指定的IP地址进行Ping操作，并输出每个IP的状态（在线或离线）。通过队列管理待测IP地址，提高了测试效率。

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#!/usr/bin/env python


import subprocess
from threading import Thread
from Queue import Queue

num_threads = 3
ips = ['127.0.0.1', '10.103.13.156','10.103.13.145']
q = Queue()


def pingme(i, queue):
    while True:
        ip = queue.get()
        print 'Thread %s pinging %s ' % (i, ip)
        ret = subprocess.call('ping -c 1 %s' % ip, shell=True, stdout=open('/dev/null'), stderr=subprocess.STDOUT)
        if ret == 0:
            print '%s is alive!' % ip
        else:
            print '%s is down...' % ip

# start threads
for i in xrange(num_threads):
    t = Thread(target=pingme, args=(i, q))
    t.setDaemon(True)
    t.start()

for ip in ips:
    q.put(ip)

print 'main thread waiting...'
q.join()
print 'Done..'

if __name__ == '__main__':
    pass

输出内容：

/usr/bin/python2.7 /home/wuguowei/PycharmProjects/xplan_script/test_process/my_sub_process.py
Thread 1 pinging 127.0.0.1 
main thread waiting...Thread 0 pinging 10.103.13.156 
 
Thread 2 pinging 10.103.13.145 
127.0.0.1 is alive!
10.103.13.156 is alive!
10.103.13.145 is alive!