BIND 10 #1555: refactor: DHCP listening on more than one interface, timeout

[BIND 10 Development]

#1555: refactor: DHCP listening on more than one interface, timeout
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            Reporter:  tomek   |                        Owner:
                Type:  defect  |                       Status:  new
            Priority:  major   |                    Milestone:  New Tasks
           Component:  dhcp    |                     Keywords:
           Sensitive:  0       |              Defect Severity:  N/A
         Sub-Project:  DHCP    |  Feature Depending on Ticket:
Estimated Difficulty:  0       |          Add Hours to Ticket:  0
         Total Hours:  0       |                    Internal?:  0
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 Both DHCPv4 and DHCPv6 components listen on a single socket. They need to
 use select() to listen on many sockets. Also, timeout must be specified.
 That will be needed later on, when certain actions will happen based on
 time, rather than packet reception (i.e. lease expiration).

 Time must be specified on sub-second resolution (ms or us).

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Ticket URL: <http://bind10.isc.org/ticket/1555>
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BIND 10 Development