BIND 10 #2977: Implement DnsClient Packet I/O.

[BIND 10 Development]

#2977: Implement DnsClient Packet I/O.
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            Reporter:  tmark         |                        Owner:
                Type:  enhancement   |                       Status:  new
            Priority:  medium        |                    Milestone:  New
           Component:  dhcp          |  Tasks
            Keywords:                |                   Resolution:
           Sensitive:  0             |                 CVSS Scoring:
         Sub-Project:  DHCP          |              Defect Severity:  N/A
Estimated Difficulty:  0             |  Feature Depending on Ticket:
         Total Hours:  0             |          Add Hours to Ticket:  0
                                     |                    Internal?:  0
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Description changed by tmark:

Old description:

> Develop code to carry out DDNS packet exchange given a server with which
> to
> converse:
>     a:sending a packet
>     b:waiting for a response, invoking callback handler
>     c:handling timeouts and retransmission.
> This should be based on libdns++ and libasiolink.  The DnsClient should
> select the appropriate protocol UPD or TCP, but initially need only
> support UDP.
>
> The implementation must use isc::asiolink. Callback handlers should be
> class instance methods, not static functions.

New description:

 Develop code to carry out DDNS packet exchange given a server with which
 to
 converse:
     a:sending a packet
     b:waiting for a response, invoking callback handler
     c:handling timeouts and retransmission.
 This should be based on libdns++ and libasiolink.  The !DnsClient should
 select the appropriate protocol UPD or TCP, but initially need only
 support UDP.
 Callback handlers should be class instance methods, not static functions.

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Ticket URL: <http://bind10.isc.org/ticket/2977#comment:1>
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