BIND 10 #1678: Lettuce test for multiple instances

[BIND 10 Development]

#1678: Lettuce test for multiple instances
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                   Reporter:         |                 Owner:  jinmei
  vorner                             |                Status:  reviewing
                       Type:         |             Milestone:
  enhancement                        |  Sprint-20120306
                   Priority:  major  |            Resolution:
                  Component:         |             Sensitive:  0
  Unclassified                       |           Sub-Project:  Core
                   Keywords:         |  Estimated Difficulty:  8
            Defect Severity:  N/A    |           Total Hours:  2
Feature Depending on Ticket:         |
  Multiple interfaces                |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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Changes (by jelte):

 * owner:  jelte => jinmei


Comment:

 may not be entirely related, but those asio changes do indeed seem to fix
 all the issues i have seen.

 For the completeness of this branch, I've merged them in here (also merged
 master btw)

 And to address your comments:

 refactored the _pid functions with a new helper function get_process_pid()

 Applied your patch, but modified it into two separate replacements, one
 for the Exit statement (i'm hoping we'll remove it at some point), and the
 remove-garbage is now also a string-replace, which should work with all
 forms of JSON output, not just arrays. But please verify whether i did not
 reintroduce your problem :)

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Ticket URL: <http://bind10.isc.org/ticket/1678#comment:8>
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