#! /bin/sh
# FS QA Test No. 192
#
# Simple test of atime
# - ensure it is persistent after unmount
# - check updated time by correct amount
#
#-----------------------------------------------------------------------
# Copyright (c) 2008 Silicon Graphics, Inc.  All Rights Reserved.
#
# 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.
#
# This program is distributed in the hope that it would be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, write the Free Software Foundation,
# Inc.,  51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
#
#-----------------------------------------------------------------------
#
# creator
owner=tes@emu.melbourne.sgi.com

seq=`basename $0`
echo "QA output created by $seq"

here=`pwd`
tmp=/tmp/$$
status=1	# failure is the default!
trap "exit \$status" 0 1 2 3 15

_access_time()
{
	stat --format=%X $1
}

# get standard environment, filters and checks
. ./common.rc
. ./common.filter

# real QA test starts here

_supported_fs xfs udf nfs
_supported_os Linux
#delay=150
#delay=75
#delay=60
#delay=45
delay=40

testfile=$TEST_DIR/testfile
rm -f $testfile
rm -f $seq.full

echo test >$testfile
time1=`_access_time $testfile | tee -a $seq.full` 

echo "sleep for $delay"
sleep $delay # sleep to allow time to move on for access
cat $testfile
time2=`_access_time $testfile | tee -a $seq.full` 

cd /
umount $TEST_DIR
mount $TEST_DIR
time3=`_access_time $testfile | tee -a $seq.full`

delta1=`expr $time2 - $time1`
delta2=`expr $time3 - $time1`

echo "delta1 - access time after sleep in-core: $delta1"
echo "delta2 - access time after sleep on-disk: $delta2"

# success, all done
status=0
exit