BIND 10 #2122: Add isc.sysinfo.SysInfo implementation for FreeBSD

[BIND 10 Development]

#2122: Add isc.sysinfo.SysInfo implementation for FreeBSD
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                   Reporter:  muks   |                 Owner:  muks
                       Type:         |                Status:  reviewing
  enhancement                        |             Milestone:
                   Priority:         |  Sprint-20120717
  medium                             |            Resolution:
                  Component:         |             Sensitive:  0
  Unclassified                       |           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 muks):

 Replying to [comment:7 jreed]:
 > For sysctl, consider using ctypes and libc.sysctlbyname() instead of a
 subprocess.

 I have skipped this for now as it seems to involve loading a shared
 library and calling into it.

 Replying to [comment:8 jreed]:
 > Maybe to know if SMP, use sysctl  kern.smp.disabled or kern.smp.active

 Picked this suggestion.

 This and all other commits were rebased on the OpenBSD modifications in
 #2121, squashed and put on the trac2122_2 branch.

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Ticket URL: <https://bind10.isc.org/ticket/2122#comment:9>
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