BIND 10 #1867: use util::io::SocketSessionForwarder for passing xfr from auth to xfrout

[BIND 10 Development]

#1867: use util::io::SocketSessionForwarder for passing xfr from auth to xfrout
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                   Reporter:         |                 Owner:
  jinmei                             |                Status:  new
                       Type:  task   |             Milestone:  Next-Sprint-
                   Priority:         |  Proposed
  medium                             |            Resolution:
                  Component:         |             Sensitive:  0
  b10-auth                           |           Sub-Project:  DNS
                   Keywords:         |  Estimated Difficulty:  0
            Defect Severity:  N/A    |           Total Hours:  0
Feature Depending on Ticket:         |
        Add Hours to Ticket:  0      |
                  Internal?:  0      |
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Description changed by jinmei:

Old description:

> I believe this will also help resolve various issues in xfrout such as
> busy loop-like problem.  Both auth and xfrout need to be updated, but
> that will probably be too big for a single task, so I propose we first
> update auth, only with unittests, and keeping the current code for the
> actual operation.
>
> Once the xfrout part is completed, we'll switch the auth part too.

New description:

 I believe this will also help resolve various issues in xfrout such as
 busy loop-like problem.  Both auth and xfrout need to be updated, but
 that will probably be too big for a single task, so I propose we first
 update auth, only with unittests, and keeping the current code for the
 actual operation.  xfrout part is #1868.

 Once the xfrout part is completed, we'll switch the auth part too.

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Ticket URL: <http://bind10.isc.org/ticket/1867#comment:1>
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