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40 lines
1.2 KiB
40 lines
1.2 KiB
#!/bin/sh
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# --- SDE-COPYRIGHT-NOTE-BEGIN ---
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# This copyright note is auto-generated by ./scripts/Create-CopyPatch.
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#
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# Filename: package/.../clockspeed/clockspeed-adjust.sh
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# Copyright (C) 2008 The OpenSDE Project
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#
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# More information can be found in the files COPYING and README.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; version 2 of the License. A copy of the
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# GNU General Public License can be found in the file COPYING.
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# --- SDE-COPYRIGHT-NOTE-END ---
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# clock_adjust.sh
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# periodically get timing mark for clockspeed service
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# taken from http://www.thedjbway.org/clocksd/index.html
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#
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# initialize WAIT, WAIT_MAX:
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WAIT=541
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WAIT_MAX=2617923
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# loop indefinitely
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while :
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do
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echo "Waiting ${WAIT} seconds until next adjustment..."
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sleep ${WAIT}
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# obtain timing mark for calibrating clockspeed adjust:
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clockctl mark
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# log current "attoseconds":
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clockctl atto
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echo "==="
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# increment $WAIT:
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WAIT=`expr ${WAIT} + ${WAIT} + ${WAIT}`
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if [ ${WAIT} -gt ${WAIT_MAX} ] ; then
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WAIT=${WAIT_MAX}
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fi
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done
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# that's all, folks!
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