BIND 10 #2211: update the data source reconfigure command so it uses thread

[BIND 10 Development]

#2211: update the data source reconfigure command so it uses thread
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                   Reporter:         |                 Owner:
  jinmei                             |                Status:  new
                       Type:  task   |             Milestone:
                   Priority:         |            Resolution:
  medium                             |             Sensitive:  0
                  Component:         |           Sub-Project:  DNS
  b10-auth                           |  Estimated Difficulty:  6
                   Keywords:         |           Total Hours:  0
            Defect Severity:  N/A    |
Feature Depending on Ticket:         |
  background zone loading            |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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Description changed by jinmei:

Old description:

> A subtask of #2201, depends on #2203, #2205, #2210.
>
> This task updates the command handler introduced in #2203 so that it now
> creates a "reconfigure data source" command for the configurator
> thread, and wakes up the thread with it.
>
> When this task completes, data source configuration should now be
> possible without disrupting service.

New description:

 A subtask of #2201, depends on #2203, #2205, #2210.

 This task updates the command handler introduced in #2203 so that it now
 creates a "reconfigure data source" command for the configurator
 thread, and wakes up the thread with it.

 Note: according to the `ModuleCCSession` class description, a remote
 module handler is generally expected to be exception free.  Make sure
 the revised handler won't leak exceptions except for real fatal ones.

 When this task completes, data source configuration should now be
 possible without disrupting service.

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Ticket URL: <http://bind10.isc.org/ticket/2211#comment:4>
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