CallBackCVC.py

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#!/usr/local/bin/python
#
#                               Copyright 2004
#                                     by
#                        The Board of Trustees of the
#                     Leland Stanford Junior University.
#                            All rights reserved.
#

__facility__ = "Online"
__abstract__ = "Current Value Table Client"
__author__  = "Jim Panetta <panetta@slac.stanford.edu> SLAC - GLAST LAT I&T/Online"
__date__     = ("$Date: 2005/09/29 00:23:18 $").split(' ')[1]
__version__ = "$Revision: 1.2 $"
__release__  = "$Name: HEAD $"
__credits__ = "SLAC"

import LICOS.copyright_SLAC

import LICOS.util.gOptions as gOptions

import threading, asyncore, socket
import time
import cPickle as pickle

from LICOS.lib.currValTable.CurrValClient import CurrValClient

class CallBackCVC(CurrValClient):
  def __init__(self, host, port, mnemList, callBack = None):

    self.update = callBack

    super(CallBackCVC, self).__init__(host, port, mnemList)

class BlankClass(object):
  def myUpdate(self, cv):
    print "myUpdate recieved update of ", cv.name, " =", cv.rawValue()
    print "  with self = ", self

if __name__ == '__main__':

  options = gOptions.Options(['cvtHost', 'cvtPort'])
  try:
    options.parse()
  except Exception, msg:
    options.usage(str(msg))
    exit

  cvtHost = options.cvtHost
  cvtPort = int(options.cvtPort)


  mnemList = []
  mnemList.append("LHKT5TKRC5T0")

  b = BlankClass()
  cvc = CallBackCVC( cvtHost, cvtPort, mnemList, b.myUpdate)

  asyncore.loop(1)










#eof

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