BIND 10 #2202: introduce a lock for the data source client in auth

[BIND 10 Development]

#2202: introduce a lock for the data source client in auth
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                   Reporter:         |                 Owner:  UnAssigned
  jinmei                             |                Status:  assigned
                       Type:  task   |             Milestone:
                   Priority:  low    |  Sprint-20120918
                  Component:         |            Resolution:
  b10-auth                           |             Sensitive:  0
                   Keywords:         |           Sub-Project:  DNS
            Defect Severity:  N/A    |  Estimated Difficulty:  5
Feature Depending on Ticket:         |           Total Hours:  0
  background zone loading            |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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Comment (by vorner):

 I should provide the benchmark results too, I think.

 On current master:
 {{{
 Parameters:
   Iterations: 1000000
   Data Source: type=memory, file=/home/vorner/vorner.cz.final
   Origin: vorner.cz
   Query data: file=/home/vorner/vorner.queries (8 queries)

 Benchmark with In Memory Data Source
 Processed 8000000 queries in 15.050939s (531528.30qps)
 }}}

 And on the branch:
 {{{
 Parameters:
   Iterations: 1000000
   Data Source: type=memory, file=/home/vorner/vorner.cz.final
   Origin: vorner.cz
   Query data: file=/home/vorner/vorner.queries (8 queries)

 Benchmark with In Memory Data Source
 Processed 8000000 queries in 15.842716s (504963.92qps)
 }}}

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Ticket URL: <http://bind10.isc.org/ticket/2202#comment:6>
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