sheba/pkgs/clockspeed/D%sysconfdir_clockspeed_clockspeed-adjust_run.sh

#!/bin/sh
# --- SDE-COPYRIGHT-NOTE-BEGIN ---
# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
#
# Filename: target/sheba/pkgs/clockspeed/D%sysconfdir_clockspeed_clockspeed-adjust_run.sh
# Copyright (C) 2008 The OpenSDE Project
#
# More information can be found in the files COPYING and README.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; version 2 of the License. A copy of the
# GNU General Public License can be found in the file COPYING.
# --- SDE-COPYRIGHT-NOTE-END ---

# based on http://www.thedjbway.org/clocksd/index.html

exec 2>&1

WAIT=$( expr 9 \* 3600 )		# first in 9 hours
WAIT_MAX=$( expr 7 \* 24 \* 3600 )	# at least once per week

# loop indefinitely
while true; do
	echo "Waiting ${WAIT} seconds until next adjustment..."
	sleep ${WAIT}
	# obtain timing mark for calibrating clockspeed adjust:
	clockctl mark
	# log current "attoseconds":
	clockctl atto
	echo "==="
	if [ $WAIT -lt $WAIT_MAX ]; then
		WAIT=$( expr $WAIT \* 2 )
		[ $WAIT -le $WAIT_MAX ] || WAIT=$WAIT_MAX
 	fi
 done