#!/bin/sh

#
# Copyright (c) 2014 EMC Corp.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
# 1. Redistributions of source code must retain the above copyright
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# 2. Redistributions in binary form must reproduce the above copyright
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# MEMGUARD(9) test scenario
# http://people.freebsd.org/~pho/stress/log/memguard4.txt

[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1

. ../default.cfg

sysctl vm | grep -q memguard || { echo "MEMGUARD(9) not enabled"; exit 1; }

mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint
mdconfig -l | grep -q md$mdstart &&  mdconfig -d -u $mdstart

mdconfig -a -t swap -s 1g -u $mdstart || exit 1

newfs $newfs_flags md$mdstart > /dev/null

mount /dev/md$mdstart $mntpoint
chmod 777 $mntpoint

export runRUNTIME=30s
export RUNDIR=$mntpoint/stressX
[ -d $RUNDIR ] || mkdir $RUNDIR
chmod 777 $RUNDIR

sysctl vm.memguard.options=3 > /dev/null
{ vmstat -m; echo dummy; } | sed '1d;s/ [0-9].*//;s/^ *//' | \
    sed 's/ *$//' | tr '\n' ' ' | ../tools/shuffle | \
    tr ' ' '\n' | head -10 | while read type; do
	sysctl vm.memguard.desc="$type"
	su $testuser -c 'cd ..; ./run.sh disk.cfg' > /dev/null
	find /tmp/stressX.control/* $mntpoint/stressX/* -delete 2>/dev/null
done
sysctl vm.memguard.desc="" > /dev/null
sysctl vm.memguard.options=1 > /dev/null

while mount | grep $mntpoint | grep -q /dev/md; do
	umount $mntpoint || sleep 1
done
mdconfig -d -u $mdstart