Archipelago » qemu

#!/bin/bash

#

# Resizing images

#

# Copyright (C) 2010 IBM, Corp.

#

# 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=stefanha@linux.vnet.ibm.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

. ./common.pattern

_supported_fmt raw qcow2 qed

_supported_proto file sheepdog rbd

_supported_os Linux

echo "=== Creating image"

echo

small_size=$((128 * 1024 * 1024))

big_size=$((384 * 1024 * 1024))

_make_test_img $small_size

echo

echo "=== Writing whole image"

io_pattern write 0 $small_size 0 1 0xc5

_check_test_img

echo

echo "=== Resizing image"

$QEMU_IO "$TEST_IMG" <<EOF | _filter_qemu_io

length

truncate $big_size

length

EOF

_check_test_img

echo

echo "=== Verifying image size after reopen"

$QEMU_IO -c "length" "$TEST_IMG"

echo

echo "=== Verifying resized image"

io_pattern read 0 $small_size 0 1 0xc5

io_pattern read $small_size $(($big_size - $small_size)) 0 1 0

# success, all done

echo "*** done"

rm -f $seq.full

status=0