#! /bin/bash
# FS QA Test No. 054
#
# To test log replay with version 2 logs
# Initially keep this simple with just creates.
# In another qa test we can do more e.g. use fsstress.
#
#-----------------------------------------------------------------------
# Copyright (c) 2000-2004 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
#
#-----------------------------------------------------------------------
#

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

here=`pwd`
tmp=/tmp/$$
status=1	# failure is the default!
trap "rm -f $tmp.*; exit \$status" 0 1 2 3 15

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

# real QA test starts here
_supported_fs generic
_supported_os IRIX Linux

rm -f $seqres.full $tmp.*
_require_scratch
_require_scratch_shutdown
_require_logstate

echo "*** init FS"
_scratch_unmount >/dev/null 2>&1

_get_log_configs > $tmp.seq.params

# Do the work for various log params which
# should not effect the data content of the log
# Try with and without sync'ing - sync'ing will mean that
# the log will be written out unfilled and thus the log
# stripe can have an effect.
#
for s in sync nosync ; do
    cat $tmp.seq.params \
    | while read mkfs mnt restofline
    do
	if [ "$mkfs" = "#" ]; then
	    continue
	fi

	echo "--- mkfs=$mkfs, mnt=$mnt, sync=$s ---" >>$seqres.full
	export MKFS_OPTIONS="-l $mkfs"
	export MOUNT_OPTIONS="-o $mnt"

	# mkfs the FS
	_echofull "mkfs"
	_scratch_mkfs >>$seqres.full 2>&1
	if [ $? -ne 0 ] ; then
	    _echofull "mkfs failed: $MKFS_OPTIONS"
	    continue
	fi

	# mount the FS
	_echofull "mount"
	if ! _scratch_mount >>$seqres.full 2>&1; then
	    _echofull "mount failed: $MOUNT_OPTIONS"
	    continue
	fi

	# create the metadata
	if [ $s = "sync" ]; then
	    # generate some log traffic - but not too much
	    # add some syncs to get the log flushed to disk
	    for file in $SCRATCH_MNT/{0,1,2,3,4,5,6,7,8,9}{0,1,2,3,4,5,6,7,8,9}; do
		touch $file
		sync
	    done
	else
	    # generate some log traffic - but not too much - life gets a little
	    # more complicated if the log wraps around. This traffic is
	    # pretty much arbitary, but could probably be made better than this.
	    touch $SCRATCH_MNT/{0,1,2,3,4,5,6,7,8,9}{0,1,2,3,4,5,6,7,8,9}
	fi

	# check before on what FS should look like
	_echofull "ls SCRATCH_MNT"
	ls $SCRATCH_MNT

	_echofull "godown"
	src/godown -v -f $SCRATCH_MNT >> $seqres.full

	_echofull "unmount"
	_scratch_unmount >>$seqres.full 2>&1 \
	    || _fail "umount failed"

	_echofull "logprint after going down..."
	_print_logstate

	_echofull "mount with replay"
	_scratch_mount >>$seqres.full 2>&1 \
	    || _fail "mount failed: $MOUNT_OPTIONS"

	# check on what FS looks like after log recovery
	_echofull "ls SCRATCH_MNT"
	ls $SCRATCH_MNT

	_echofull "unmount"
	_scratch_unmount

	_echofull "logprint after mount and replay..."
	_print_logstate

	if _check_scratch_fs; then
	    _echofull "filesystem is checked ok"
	else
	    _echofull "filesystem is NOT ok"
	fi
    done
done

status=0
exit
