BIND 10 #579: Add iterator interface to Hash Table

[BIND 10 Development]

#579: Add iterator interface to Hash Table
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                 Reporter:  zhanglikun  |                Owner:
                     Type:  task        |               Status:  new
                 Priority:  major       |            Milestone:
                Component:  resolver    |           Resolution:
                 Keywords:              |            Sensitive:  0
Estimated Number of Hours:  0.0         |  Add Hours to Ticket:  0
                Billable?:  1           |          Total Hours:  0
                Internal?:  0           |
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Comment (by zhanglikun):

 Replying to [ticket:579 zhanglikun]:
 > The iterator interface for Hash Table needs to be added, so that the
 content of it can be walked.

 for example, it can be used to dump resolver cache.

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Ticket URL: <http://bind10.isc.org/ticket/579#comment:1>
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