Source Code for Module buildslave.monkeypatches.bug5079

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14  # Copyright Buildbot Team Members 
15   
16  from twisted.spread import pb 
17  from twisted.python import log 
18  from twisted.spread.interfaces import IJellyable 
19   
20 -def patch(): 
21      log.msg("Applying patch for http://twistedmatrix.com/trac/ticket/5079") 
22      if not hasattr(pb, '_JellyableAvatarMixin'): 
23          log.msg("..patch not applicable; please file a bug at buildbot.net") 
24      else: 
25          pb._JellyableAvatarMixin._cbLogin = _fixed_cbLogin 
26   
27 -def _fixed_cbLogin(self, (interface, avatar, logout)): 
28      """ 
29      Ensure that the avatar to be returned to the client is jellyable and 
30      set up disconnection notification to call the realm's logout object. 
31      """ 
32      if not IJellyable.providedBy(avatar): 
33          avatar = pb.AsReferenceable(avatar, "perspective") 
34   
35      puid = avatar.processUniqueID() 
36   
37      # only call logout once, whether the connection is dropped (disconnect) 
38      # or a logout occurs (cleanup), and be careful to drop the reference to 
39      # it in either case 
40      logout = [ logout ] 
41      def maybeLogout(): 
42          if not logout: return 
43          fn = logout[0] 
44          del logout[0] 
45          fn() 
46      self.broker._localCleanup[puid] = maybeLogout 
47      self.broker.notifyOnDisconnect(maybeLogout) 
48   
49      return avatar 
50