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#!/bin/sh
#
# Copyright (c) 2015 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.
#
# selfd regression test attempt for r285310. Not reproduced.
# Watchdog fired seen: https://people.freebsd.org/~pho/stress/log/selfd.txt
. ../default.cfg
dir=/tmp
odir=`pwd`
cd $dir
sed '1,/^EOF/d' < $odir/$0 > $dir/selfd.c
mycc -o selfd -Wall -Wextra -O0 -g selfd.c -lpthread || exit 1
rm -f selfd.c
cd $odir
rm -rf /tmp/stressX.control
daemon sh -c "(cd ../testcases/swap; ./swap -t 10m -i 20 -l 100)" > \
/dev/null 2>&1
sleep 2
/tmp/selfd
s=$?
while pgrep -q swap; do
pkill -9 swap
done
rm -rf /tmp/selfd
exit $s
EOF
#include <sys/param.h>
#include <sys/select.h>
#include <sys/stat.h>
#include <sys/wait.h>
#include <err.h>
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <sched.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <unistd.h>
static pthread_barrier_t barr;
#define PARALLEL 16
#define PIPES 32
#define RUNTIME (5 * 60)
static void
handler(int s __unused)
{
}
static void
test(void)
{
fd_set rset, tmpl;
struct sigaction sa;
struct timeval timeout;
time_t start;
int fds[PIPES][2], i, n, r;
r = pthread_barrier_wait(&barr);
if (r != 0 && r != PTHREAD_BARRIER_SERIAL_THREAD)
errc(1, r, "pthread_barrier_wait");
FD_ZERO(&tmpl);
for (i = 0; i < PIPES; i++) {
if (pipe(fds[i]) == -1)
err(1, "pipe()");
FD_SET(fds[i][0], &tmpl);
}
sa.sa_handler = handler;
sigemptyset(&sa.sa_mask);
sa.sa_flags = 0;
if (sigaction(SIGALRM, &sa, NULL) == -1)
err(1, "sigaction");
start = time(NULL);
while ((time(NULL) - start) < 10) {
rset = tmpl;
timeout.tv_sec = 0;
timeout.tv_usec = arc4random() % 10000 + 100;
n = arc4random() % PIPES;
ualarm(arc4random() % 10000 + 100, 0);
write(fds[n][1], "a", 1);
if ((n = select(PIPES, &rset, NULL, NULL, &timeout)) < 0)
if (errno != EINTR)
err(1, "select()");
ualarm(0, 0);
}
_exit(0);
}
int
main(void)
{
pthread_barrierattr_t attr;
time_t start;
int i, r;
if ((r = pthread_barrierattr_init(&attr)) != 0)
errc(1, r, "pthread_barrierattr_init");
if ((r = pthread_barrierattr_setpshared(&attr,
PTHREAD_PROCESS_SHARED)) != 0)
errc(1, r, "pthread_barrierattr_setpshared");
if ((r = pthread_barrier_init(&barr, &attr, PARALLEL)) != 0)
errc(1, r, "pthread_barrier_init");
start = time(NULL);
while ((time(NULL) - start) < RUNTIME) {
for (i = 0; i < PARALLEL; i++)
if (fork() == 0)
test();
for (i = 0; i < PARALLEL; i++)
wait(NULL);
}
return (0);
}
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