def METHOD_NAME(cpu,data,size):
     event = b["visit_event"].event(data)
     saddr=inet_ntop(AF_INET, pack("I", event.saddr))
     daddr = inet_ntop(AF_INET, pack("I",event.daddr))
    #  print(saddr)
    #  print(daddr)
     print("vist->%d" %(event.seq))