#! /bin/bash
# FS QA Test No. 090
#
# Exercise IO on the realtime device (direct, buffered, mmapd)
#
#-----------------------------------------------------------------------
# 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
#
#-----------------------------------------------------------------------
#
# creator
owner=nathans@sgi.com

seq=`basename $0`
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

# real QA test starts here
_supported_fs xfs
_supported_os Linux
_require_realtime
_require_scratch

_filter_io()
{
	sed -e '/.* ops; /d'
}

_create_scratch()
{
	echo "*** mkfs"
	if ! _scratch_mkfs_xfs >$tmp.out 2>&1
	then
		cat $tmp.out
		echo "failed to mkfs $SCRATCH_DEV"
		exit 1
	fi

	echo "*** mount"
	if ! _scratch_mount
	then
		echo "failed to mount $SCRATCH_DEV"
		exit 1
	fi
}

realtime_direct_aligned()
{
	echo direct realtime writes, 4 files, 2m each, increasing offsets.
	for i in 0 1 2 3
	do
		$XFS_IO_PROG -fdxR $SCRATCH_MNT/rt-direct-$1-$i \
			-c "extsize $1" -c "pwrite ${i}m 1m" \
			| _filter_io
	done
	_check_scratch_fs
}

realtime_buffer_aligned()
{
	echo buffered realtime writes, 4 files, 2m each, increasing offsets.
	for i in 0 1 2 3
	do
		$XFS_IO_PROG -fxR $SCRATCH_MNT/rt-buffera-$1-$i \
			-c "extsize $1" -c "pwrite ${i}m 1m" \
			| _filter_io
	done
	_check_scratch_fs
}

realtime_buffer_unaligned()
{
	echo buffered realtime writes, 4 files, unaligned byte offsets/sizes.
	for i in 0 1 2 3
	do
		$XFS_IO_PROG -fxR $SCRATCH_MNT/rt-bufferu-$1-$i \
			-c "extsize $1" -c "pwrite $i 1" \
			| _filter_io
	done
	_check_scratch_fs
}

realtime_mmap_unaligned()
{
	# mmap realtime writes, 4 files, unaligned byte offsets/sizes.
	for i in 0 1 2 3
	do
		$XFS_IO_PROG -fxR $SCRATCH_MNT/rt-mmap-$1-$i \
			-c "extsize $1" -c "pwrite $i 1" \
			| _filter_io
	done
	_check_scratch_fs
}


_create_scratch

realtime_direct_aligned 0
#realtime_direct_aligned 1m
realtime_buffer_aligned 0
#realtime_buffer_aligned 1m
realtime_buffer_unaligned 0
#realtime_buffer_unaligned 1m
#realtime_mmap_unaligned 0
#realtime_mmap_unaligned 1m

status=0
exit
