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122 lines
2.9 KiB
Bash
Executable file
122 lines
2.9 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2014 EMC Corp.
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# All rights reserved.
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#
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# Redistribution and use in source and binary forms, with or without
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# modification, are permitted provided that the following conditions
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# are met:
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# 1. Redistributions of source code must retain the above copyright
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# notice, this list of conditions and the following disclaimer.
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# 2. Redistributions in binary form must reproduce the above copyright
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# notice, this list of conditions and the following disclaimer in the
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# documentation and/or other materials provided with the distribution.
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#
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# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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# SUCH DAMAGE.
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#
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[ `id -u ` -ne 0 ] && echo "Must be root!" && exit 1
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# Simple O_EXLOCK test scenario.
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. ../default.cfg
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here=`pwd`
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cd /tmp
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sed '1,/^EOF/d' < $here/$0 > exlock.c
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mycc -o exlock -Wall -Wextra exlock.c || exit 1
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rm -f exlock.c
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cd $here
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mount | grep $mntpoint | grep -q /dev/md && umount -f $mntpoint
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mdconfig -l | grep -q md$mdstart && mdconfig -d -u $mdstart
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mdconfig -a -t swap -s 2g -u $mdstart || exit 1
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bsdlabel -w md$mdstart auto
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newfs $newfs_flags md${mdstart}$part > /dev/null
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mount /dev/md${mdstart}$part $mntpoint
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chmod 777 $mntpoint
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su $testuser -c "cd $mntpoint; /tmp/exlock"
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while mount | grep $mntpoint | grep -q /dev/md; do
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umount $mntpoint || sleep 1
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done
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mdconfig -d -u $mdstart
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rm -f /tmp/exlock
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exit
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EOF
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#include <sys/types.h>
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#include <sys/wait.h>
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#include <err.h>
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#include <fcntl.h>
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#include <stdio.h>
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#include <unistd.h>
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char buf[128];
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#define PARALLEL 3
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static void
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tst(char *file, int n)
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{
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int fd, i;
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for (i = 0; i < (int)sizeof(buf); i++)
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buf[i] = '0' + n;
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for (i = 0; i < 1024 * 1024; i++) {
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if ((fd = open(file, O_RDWR | O_CREAT | O_APPEND | O_EXLOCK,
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0644)) == -1)
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err(1, "open(%s)", file);
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if (write(fd, buf, sizeof(buf)) != sizeof(buf))
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err(1, "write");
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close(fd);
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}
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_exit(0);
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}
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static void
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test(void)
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{
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int i;
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char file[80];
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snprintf(file, sizeof(file), "f06%d", getpid());
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for (i = 0; i < 3; i++)
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if (fork() == 0)
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tst(file, i);
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for (i = 0; i < 3; i++)
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wait(NULL);
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unlink(file);
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_exit(0);
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}
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int
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main(void)
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{
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int i;
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for (i = 0; i < PARALLEL; i++)
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if (fork() == 0)
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test();
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for (i = 0; i < PARALLEL; i++)
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wait(NULL);
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return (0);
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}
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