python的多线程示例
#!/usr/bin/env pythonimport 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!
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