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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Comment (by jinmei):

 Replying to [comment:2 vorner]:
 > The question here is, if we're going to update the msgq system (I hope
 we do, I'm getting tired of its problems), I'd like it to have an ability
 to send file descriptors in-bound. In such case, it would be nice to use
 that, possibly?

 Possibly.  But if the revised msgq system still requires a hub
 process, I'd be scared about the complexity of the indirect FD
 passing.  (I do support the idea of updating msgq per se, btw).

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Ticket URL: <http://bind10.isc.org/ticket/1867#comment:3>
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