#!/bin/bash
#
# Test for AIO allocation on the same cluster
#
# Copyright (C) 2009 Red Hat, Inc.
#
# 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; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will 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, see <http://www.gnu.org/licenses/>.
#

# creator
owner=kwolf@redhat.com

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

here=`pwd`
tmp=/tmp/$$
status=1	# failure is the default!

_cleanup()
{
	_cleanup_test_img
}
trap "_cleanup; exit \$status" 0 1 2 3 15

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

_supported_fmt generic
_supported_proto generic
_supported_os Linux


size=6G

echo
echo "creating image"
_make_test_img $size


echo
echo "overlapping I/O"
for i in `seq 1 10`; do
    let mb=1024*1024
    let off1=$i*$mb
    let off2=$off1+512

    # Note that we filter away the actual offset.  That's because qemu
    # may re-order the two aio requests.  We only want to make sure the
    # filesystem isn't corrupted afterwards anyway.
    $QEMU_IO $TEST_IMG -c "aio_write $off1 1M" -c "aio_write $off2 1M" | \
    	_filter_qemu_io | \
	sed -e 's/bytes at offset [0-9]*/bytes at offset XXX/g'
done

echo
echo "checking image for errors"
_check_test_img

# success, all done
echo "*** done"
rm -f $seq.full
status=0