#!/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 # 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. # [ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1 . ../default.cfg here=`pwd` cd /tmp sed '1,/^EOF/d' < $here/$0 > lockf3.c mycc -o lockf3 -Wall -Wextra -O2 lockf3.c || exit 1 rm -f lockf3.c mount | grep -q "$mntpoint" && umount $mntpoint mdconfig -l | grep -q $mdstart && mdconfig -d -u $mdstart mdconfig -a -t swap -s 40m -u $mdstart bsdlabel -w md$mdstart auto newfs $newfs_flags md${mdstart}$part > /dev/null mount /dev/md${mdstart}$part $mntpoint cd $mntpoint for i in `jot 3`; do $here/../testcases/swap/swap -t 10m -i 200 > /dev/null & /tmp/lockf3 || break pkill swap wait done while pgrep -q swap; do pkill swap done pkill lockf3 wait cd $here while mount | grep -q "on $mntpoint "; do umount $mntpoint || sleep 1 done rm -rf /tmp/lockf3 exit 0 EOF #include <err.h> #include <errno.h> #include <fcntl.h> #include <signal.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/types.h> #include <sys/wait.h> #include <unistd.h> #define LOOPS 10000 #define PIDS 100 void handler(int s __unused) { } void int_handler(int s __unused) { _exit(0); } void ahandler(int s __unused) { fprintf(stderr, "FAIL timed out\n"); _exit(1); } int main(void) { int fd, i, j; char name[128]; pid_t pid[PIDS]; struct sigaction sa; int status; signal(SIGALRM, ahandler); alarm(15 * 60); for (i = 0; i < PIDS; i++) { sprintf(name, "lock.%06d", getpid()); if ((fd = open(name, O_CREAT | O_TRUNC | O_RDWR, 0640)) == -1) err(1, "open(%s)", name); if (lockf(fd, F_LOCK, 0) == -1) err(1, "flock 1"); if ((pid[i] = fork()) == -1) err(1, "fork"); if (pid[i] == 0) { memset(&sa, 0, sizeof(sa)); sa.sa_handler = handler; if (sigaction(SIGHUP, &sa, NULL) == -1) err(1, "signal"); sa.sa_handler = int_handler; if (sigaction(SIGINT, &sa, NULL) == -1) err(1, "signal"); for (;;) { if (lockf(fd, F_LOCK, 0) == -1) if (errno != EINTR) warn("lockf"); } _exit(0); } unlink(name); } usleep(10000); for (i = 0; i < LOOPS; i++) { for (j = 0; j < PIDS; j++) { if (kill(pid[j], SIGHUP) == -1) { warn("kill(%d), i = %d, j = %d", pid[j], i, j); pid[j] = 0; } } } for (j = 0; j < PIDS; j++) { if (kill(pid[j], SIGINT) == -1) { warn("kill(%d), i = %d, j = %d", pid[j], i, j); pid[j] = 0; } } for (j = 0; j < PIDS; j++) { if (waitpid(pid[j], &status, 0) == -1) err(1, "waitpid(%d)", pid[j]); } return (0); }