BIND 10 #2943: extensions to ZoneTableSegment and complete ConfigurableClientList::getStatus

[BIND 10 Development]

#2943: extensions to ZoneTableSegment and complete
ConfigurableClientList::getStatus
-------------------------------------+-------------------------------------
            Reporter:  jinmei        |                        Owner:
                Type:  task          |                       Status:  new
            Priority:  medium        |                    Milestone:  Next-
           Component:  data source   |  Sprint-Proposed
            Keywords:                |                   Resolution:
           Sensitive:  0             |                 CVSS Scoring:
         Sub-Project:  DNS           |              Defect Severity:  N/A
Estimated Difficulty:  0             |  Feature Depending on Ticket:
         Total Hours:  0             |  shared memory data source
                                     |          Add Hours to Ticket:  0
                                     |                    Internal?:  0
-------------------------------------+-------------------------------------

Comment (by muks):

 Replying to [ticket:2943 jinmei]:
 > To do so, we need two small extensions to the `ZoneTableSegment`
 > class:
 >
 > {{{#!cpp
 > class ZoneTableSegment {
 > public:
 >     /// ZoneTableSegmentLocal returns "local"; ZoneTableSegmentMapped
 returns
 >     /// "mapped"
 >     virtual std::string getStringType() const = 0;
 >
 >     /// ZoneTableSegmentLocal always returns true;
 ZoneTableSegmentMapped
 >     /// returns true iff the memory segment has been set by reset().
 >     virtual bool isUsable() const = 0;
 > };
 > }}}
 >
 > In this task, we implement these extensions (base class, local and
 > mapped) and complete getStatus() using these methods.

 These two extension methods to `ZoneTableSegment` will be implemented in
 #2850, as at least one of them needs to be referred in documentation it
 seems. This will also make code inside `ZoneTableSegmentMapped` a little
 more meaningful.

-- 
Ticket URL: <http://bind10.isc.org/ticket/2943#comment:2>
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