Kood Morning

pingprocs = dict()



def ping_async(ip, result):

    """Pings given ip async"""

    if ip in pingprocs:

      # ping is running for ip, check process

      process = pingprocs[ip]

      process.poll()

      if process.returncode != None:

        # ping finished, submit result

        result(ip, process.returncode == 0)

        del pingprocs[ip]

    else:

      process = subprocess.Popen(["/bin/ping","-c","1","%s" % ip],

        stdout=open("/dev/null","w"),

        stderr=subprocess.STDOUT)

      pingprocs[ip] = process

  def updateStatus(self):

	ping_async(self.ip, self.statusCB)  

    # end if

  # end def updateStatus

  def statusCB(self, ip, status):

    if status:

      self.status = "Online"

    else:

      self.status = "Offline"