freebsd-skq/tools/test/stress2/misc/pty2.sh
Peter Holm 8a272653d9 stress2: Initial import
Discussed with:	 kib
2021-03-03 15:11:40 +01:00

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#!/bin/sh
#
# Copyright (c) 2016 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
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in the
# documentation and/or other materials provided with the distribution.
#
# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
# SUCH DAMAGE.
#
# pty(4) test scenario.
# "panic: make_dev_sv: bad si_name (error=17, si_name=ptyp0)" seen.
# Fixed by r293825.
# Based on test scenario by Bruce Evans.
[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
. ../default.cfg
kldstat -v | grep -q pty || { kldload pty || exit 0; }
here=`pwd`
cd /tmp
sed '1,/^EOF/d' < $here/$0 > pty2.c
mycc -o pty2 -Wall -Wextra -O2 pty2.c || exit 1
rm -f pty2.c
/tmp/pty2
rm -f /tmp/pty2
exit
EOF
#include <sys/types.h>
#include <sys/wait.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
#define PARALLEL 3
#define RUNTIME 180
#define IN "/dev/ptyp0"
void
test(void)
{
time_t start;
int fd;
start = time(NULL);
while (time(NULL) - start < RUNTIME) {
if ((fd = open(IN, O_RDONLY)) == -1) {
if (errno != EBUSY && errno != ENXIO && errno != ENOENT)
err(1, "open(%s)", IN);
} else
close(fd);
}
_exit(0);
}
int
main(void)
{
int i;
for (i = 0; i < PARALLEL; i++)
if (fork() == 0)
test();
for (i = 0; i < PARALLEL; i++)
wait(NULL);
return(0);
}