BIND 10 #2852: Add an API for (re)setting a memory segment to ConfigurableClientList

[BIND 10 Development]

#2852: Add an API for (re)setting a memory segment to ConfigurableClientList
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            Reporter:  jinmei        |                        Owner:  muks
                Type:  task          |                       Status:
            Priority:  medium        |  reviewing
           Component:  data source   |                    Milestone:
            Keywords:                |  Sprint-20130611
           Sensitive:  0             |                   Resolution:
         Sub-Project:  DNS           |                 CVSS Scoring:
Estimated Difficulty:  3             |              Defect Severity:  N/A
         Total Hours:  0             |  Feature Depending on Ticket:
                                     |  shared memory data source
                                     |          Add Hours to Ticket:  0
                                     |                    Internal?:  0
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Comment (by muks):

 Replying to [comment:11 vorner]:
 > However, should the test case be parametrized, so it works both with the
 file-mapped segment and with the memory one? To check that such change as
 resetting the segment doesn't cause the memory one stop working?

 I have parameterized the tests now. It also is useful to do this as shared
 memory is not available on all platforms. Jinmei mentioned that it is an
 invalid operation to call `reset()` on a `ZoneTableSegmentLocal` (which is
 why it throws), but I don't know why it has to be like this instead of
 being a nop.

 > Also, where does the config that is passed to the reset method come
 from?

 Somewhere in the B10 config, but I don't know which ticket specifies this.
 `ZoneTableSegmentMapped` expects a map element with this specific
 key/value pair.

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Ticket URL: <http://bind10.isc.org/ticket/2852#comment:12>
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