#!/usr/bin/python
#coding=utf-8
'''
Created on 2015-8-4
@author: Administrator
'''

import threading,subprocess
from time import ctime,sleep,time
import Queue

queue=Queue.Queue()

class ThreadUrl(threading.Thread):
 def __init__(self,queue):
  threading.Thread.__init__(self)
  self.queue=queue

 def run(self):
  while True:
   host=self.queue.get()
   ret=subprocess.call('ping -c 1 -w 1 '+host,shell=True,stdout=open('/dev/null','w'))
   if ret:
    print "%s is down" % host
   else:
    print "%s is up" % host
   self.queue.task_done()

def main():
 for i in range(100):
  t=ThreadUrl(queue)
  t.setDaemon(True)
  t.start()
 for host in b:
  queue.put(host)
 queue.join()

a=[]
with open('ip.txt') as f:
 for line in f.readlines():
  a.append(line.split()[0])
 #print a

b=['192.168.3.'+str(x) for x in range(1,254)] #ping 192.168.3 网段
start=time()
main()
print "Elasped Time:%s" % (time()-start)

#t2=threading.Thread(target=move,args=('fff',))
#threads.append(t2)

'''
for i in a:
 print ctime()
 ping(i)
 sleep(1)

if __name__ == '__main__':
 for t in range(len(a)):
  #t.setDaemon(True)
  threads[t].start()
  #t.join()
 print "All over %s" % ctime()
'''

#!/usr/bin/python
# encoding=utf-8
# Filename: net_is_normal.py
import os
import socket
import subprocess
 
 
#判断网络是否正常
server='www.baidu.com'
#检测服务器是否能ping通，在程序运行时，会在标准输出中显示命令的运行信息
def pingServer(server):
 result=os.system('ping '+server+' -c 2')
 if result:
  print '服务器%s ping fail' % server
 else:
  print '服务器%s ping ok' % server
 print result
 
#把程序输出定位到/dev/null,否则会在程序运行时会在标准输出中显示命令的运行信息 
def pingServerCall(server):
 fnull = open(os.devnull, 'w')
 result = subprocess.call('ping '+server+' -c 2', shell = True, stdout = fnull, stderr = fnull)
 if result:
  print '服务器%s ping fail' % server
 else:
  print '服务器%s ping ok' % server
 fnull.close()
  
#可用于检测程序是否正常，如检测redis是否正常，即检测redis的6379端口是否正常
#检测ssh是否正常，即检测ssh的22端口是否正常
def check_aliveness(ip, port):
 sk = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
 sk.settimeout(1)
 try:
  sk.connect((ip,port))
  print 'server %s %d service is OK!' %(ip,port)
  return True
 except Exception:
  print 'server %s %d service is NOT OK!' %(ip,port)
  return False
 finally:
  sk.close()
 return False
  
if __name__=='__main__':
 pingServerCall(server)
 pingServer(server)
 check_aliveness('192.168.230.128', 6379)