tst.predcache.ksh   [plain text]

#
# CDDL HEADER START
#
# The contents of this file are subject to the terms of the
# Common Development and Distribution License (the "License").
# You may not use this file except in compliance with the License.
#
# You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
# or http://www.opensolaris.org/os/licensing.
# See the License for the specific language governing permissions
# and limitations under the License.
#
# When distributing Covered Code, include this CDDL HEADER in each
# file and include the License file at usr/src/OPENSOLARIS.LICENSE.
# If applicable, add the following below this CDDL HEADER, with the
# fields enclosed by brackets "[]" replaced with your own identifying
# information: Portions Copyright [yyyy] [name of copyright owner]
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# CDDL HEADER END
#

#
# Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
# Use is subject to license terms.
#
#pragma ident	"@(#)tst.predcache.ksh	1.1	06/08/28 SMI"

unload()
{
	svcadm disable -s svc:/network/nfs/mapid:default

	modunload -i 0
	modunload -i 0
	modunload -i 0

	if ( modinfo | grep dtrace ); then
		svcadm enable svc:/network/nfs/mapid:default
		echo $tst: could not unload dtrace
		exit 1
	fi

	svcadm enable svc:/network/nfs/mapid:default
}

script1()
{
	$dtrace -s /dev/stdin <<EOF
	syscall:::entry
	/pid != $ppid/
	{
		@a[probefunc] = count();
	}

	tick-1sec
	/i++ == 5/
	{
		exit(0);
	}
EOF
}

script2()
{
	$dtrace -s /dev/stdin <<EOF

	#pragma D option statusrate=1ms

	syscall:::entry
	/pid == $ppid/
	{
		ttl++;
	}

	tick-1sec
	/i++ == 5/
	{
		exit(2);
	}

	END
	/ttl/
	{
		printf("success; ttl is %d", ttl);
		exit(0);
	}

	END
	/ttl == 0/
	{
		printf("error -- total should be non-zero");
		exit(1);
	}
EOF
}

ppid=$$
dtrace=/usr/sbin/dtrace

unload
script1 &
child=$!

let waited=0

while [ "$waited" -lt 5 ]; do
	seconds=`date +%S`

	if [ "$seconds" -ne "$last" ]; then
		last=$seconds
		let waited=waited+1
	fi
done

wait $child
status=$?

if [ "$status" -ne 0 ]; then
	echo $tst: first dtrace failed
	exit $status
fi

unload
script2 &
child=$!

let waited=0

while [ "$waited" -lt 10 ]; do
	seconds=`date +%S`

	if [ "$seconds" -ne "$last" ]; then
		last=$seconds
		let waited=waited+1
	fi
done

wait $child
status=$?

exit $status