BIND 10 #2198: make sure InterprocessSyncLocker is thread safe

[BIND 10 Development]

#2198: make sure InterprocessSyncLocker is thread safe
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                   Reporter:         |                 Owner:  vorner
  jinmei                             |                Status:  reviewing
                       Type:         |             Milestone:
  defect                             |  Sprint-20121023
                   Priority:         |            Resolution:
  medium                             |             Sensitive:  0
                  Component:         |           Sub-Project:  Core
  logging                            |  Estimated Difficulty:  5
                   Keywords:         |           Total Hours:  3.25
            Defect Severity:  N/A    |
Feature Depending on Ticket:         |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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Changes (by vorner):

 * totalhours:  0 => 3.25


Comment:

 Hello

 I noticed just one small detail. The thread body function (`testThread`)
 for the wrapper
 expects to get a void function (returning nothing). I guess the `boost: is
 able to throw away the result, but then, it's useless to return the NULL
 needlessly ;-).

 Otherwise, I think it is OK to merge.

-- 
Ticket URL: <http://bind10.isc.org/ticket/2198#comment:19>
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