00001 #!/usr/local/bin/python
00002 #
00003 # Copyright 2006
00004 # by
00005 # The Board of Trustees of the
00006 # Leland Stanford Junior University.
00007 # All rights reserved.
00008 #
00009
00010 __facility__ = "Online"
00011 __abstract__ = "Ancillary event contribution class"
00012 __author__ = "R. Claus <Claus@SLAC.Stanford.edu> SLAC - GLAST LAT I&T/Online"
00013 __date__ = "3/30/2006"
00014 __updated__ = ("$Date: 2006/07/14 22:27:33 $").split(' ')[1]
00015 __version__ = "$Revision: 1.1 $"
00016 __release__ = "$Name: R04-12-00 $"
00017 __credits__ = "SLAC"
00018
00019 import LATTE.copyright_SLAC
00020
00021 import struct
00022
00023 import LATTE.merger.geb as geb
00024
00025
00026 class AncillaryContribution(geb.GebContribution):
00027 EventId = 0x000F1030L # LDF.LATprimaryId.BtAncEvt
00028 HeaderId = 0x000F1040L # LDF.LATprimaryId.BtAncHdr
00029 TrailerId = 0x000F1050L # LDF.LATprimaryId.BtAncTlr
00030 def __init__(self, contributor, contribution):
00031 geb.GebContribution.__init__(self, contributor)
00032 self.__contribution = contribution
00033
00034 def identity(self):
00035 return struct.unpack('>L', self.__contribution[0*4:1*4])[0]
00036
00037 def length(self):
00038 return struct.unpack('>L', self.__contribution[1*4:2*4])[0]
00039
00040 def sequence(self):
00041 seq = struct.unpack('>L', self.__contribution[2*4:3*4])[0] & 0x0fffffff
00042 return self.contributor().sequence(seq)
00043
00044 def buffer(self):
00045 return self.__contribution
