- Add the ffclock_getcounter(), ffclock_getestimate() and ffclock_setestimate()

  system calls to provide feed-forward clock management capabilities to
  userspace processes. ffclock_getcounter() returns the current value of the
  kernel's feed-forward clock counter. ffclock_getestimate() returns the current
  feed-forward clock parameter estimates and ffclock_setestimate() updates the
  feed-forward clock parameter estimates.

- Document the syscalls in the ffclock.2 man page.

- Regenerate the script-derived syscall related files.

Committed on behalf of Julien Ridoux and Darryl Veitch from the University of
Melbourne, Australia, as part of the FreeBSD Foundation funded "Feed-Forward
Clock Synchronization Algorithms" project.

For more information, see http://www.synclab.org/radclock/

Submitted by:	Julien Ridoux (jridoux at unimelb edu au)

1 files changed, 9 insertions, 0 deletions

diff --git a/sys/sys/timeffc.h b/sys/sys/timeffc.h
index c2a04ab..0c58c05 100644
--- a/sys/sys/timeffc.h
+++ b/sys/sys/timeffc.h
@@ -164,6 +164,15 @@ void ffclock_bindifftime(ffcounter ffdelta, struct bintime *bt);
 void ffclock_nanodifftime(ffcounter ffdelta, struct timespec *tsp);
 void ffclock_microdifftime(ffcounter ffdelta, struct timeval *tvp);
 
+#else /* !_KERNEL */
+
+/* Feed-Forward Clock system calls. */
+__BEGIN_DECLS
+int ffclock_getcounter(ffcounter *ffcount);
+int ffclock_getestimate(struct ffclock_estimate *cest);
+int ffclock_setestimate(struct ffclock_estimate *cest);
+__END_DECLS
+
 #endif /* _KERNEL */
 #endif /* __BSD_VISIBLE */
 #endif /* _SYS_TIMEFF_H_ */