BIND 10 #2198: make sure InterprocessSyncLocker is thread safe

[BIND 10 Development]

#2198: make sure InterprocessSyncLocker is thread safe
-------------------------------------+-------------------------------------
                   Reporter:         |                 Owner:  muks
  jinmei                             |                Status:  closed
                       Type:         |             Milestone:
  defect                             |  Sprint-20121023
                   Priority:         |            Resolution:  fixed
  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      |
-------------------------------------+-------------------------------------
Changes (by muks):

 * status:  reviewing => closed
 * resolution:   => fixed


Comment:

 Merged to `master` in commit `f8181bb72251fd3d5f33e157d1f2a2a75a58d765`:

 {{{
 * 6adfc24 [2198] Don't return anything from thread functions
 * 5b78174 [2198] Update comment
 * 4ed683c [2198] Test the non-blocking variant of Mutex::Locker
 * e6ac5ef [2198] Check pthread_mutex_trylock()'s return value
 * 48e80a5 [2198] Revert include to local
 * fff8929 [2198] Stop using direct lock methods on Mutex inside
 InterprocessSyncFile
 * ecef170 [2198] Make direct methods on Mutex private
 * 350c775 [2198] Add a block argument to Mutex::Locker constructor
 * 666bfa9 [2198] Add AlreadyLocked exception to Mutex::Locker
 * d042cd0 [2198] Remove dependency on libb10-util in
 src/lib/util/unittests/
 * c0d25c4 [2198] First use a mutex for mutual exclusion among threads,
 then a lock file
 * e71cd13 [2198] Add Mutex::tryLock() and make lock methods public
 * 6642455 [2198] Test that locks work from threads
 * e562ac7 [2198] Build threads directory first because . depends on it
 }}}

 Resolving as fixed. Thank you for the reviews.

-- 
Ticket URL: <http://bind10.isc.org/ticket/2198#comment:22>
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