BIND 10 #300: Bind10: create one process list and use it to kill all processes in that list

[BIND 10 Development]

#300: Bind10: create one process list and use it to kill all processes in that
list
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      Reporter:  zhanglikun    |        Owner:  UnAssigned
          Type:  enhancement   |       Status:  reviewing 
      Priority:  major         |    Milestone:            
     Component:  Boss of BIND  |   Resolution:            
      Keywords:                |    Sensitive:  0         
Estimatedhours:  0.0           |        Hours:  0         
      Billable:  1             |   Totalhours:  1.0       
      Internal:  0             |  
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Changes (by vorner):

  * owner:  vorner => UnAssigned
  * status:  accepted => reviewing


Comment:

 I created a rollback transaction and put it into library, because it
 seemed to me this kind of thing might be useful somewhere else as well and
 it wasn't much more work. I let BoB use that to kill the processes.

 The transaction has tests, but the code in BoB didn't have them before and
 I do not see a reasonable way to test it automatically, as it starts many
 processes and we would need to make them fail in the fork or somewhere
 there. Do you think it is a problem? Any idea how it could be tested? I
 tested that functionality manually at last.

 The changes are in branches/trac300, branch point is r3075, head is r3092.

 The suggested changelog:
 {{{
 [func]             Michal Vaner
 Implemented a rollback transaction - simple list of cleanup actions that
 is run
 in case of exception. Used in BoB to kill processes if there's error on
 startup.
 }}}

-- 
Ticket URL: <https://bind10.isc.org/ticket/300#comment:3>
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