kardel de4337ab21 merge FreeBSD timecounters from branch simonb-timecounters
- struct timeval time is gone
  time.tv_sec -> time_second
- struct timeval mono_time is gone
  mono_time.tv_sec -> time_uptime
- access to time via
	{get,}{micro,nano,bin}time()
	get* versions are fast but less precise
- support NTP nanokernel implementation (NTP API 4)
- further reading:
  Timecounter Paper: http://phk.freebsd.dk/pubs/timecounter.pdf
  NTP Nanokernel: http://www.eecis.udel.edu/~mills/ntp/html/kern.html
2006-06-07 22:33:33 +00:00
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In case you were wondering why this code is still present:

The ISO (or OSI) stack is still in use by many router vendors (e.g., using
IS-IS the OSI equivalent of OSPF, to carry IP routes).

Chris.
chopps@NetBSD.org