100 lines
2.4 KiB
Bash
Executable File
100 lines
2.4 KiB
Bash
Executable File
#!/bin/sh
|
|
|
|
#
|
|
# Copyright (c) 2009 Peter Holm <pho@FreeBSD.org>
|
|
# 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.
|
|
#
|
|
|
|
# Test high water mark for freeblks
|
|
|
|
. ../default.cfg
|
|
|
|
here=`pwd`
|
|
cd /tmp
|
|
sed '1,/^EOF/d' < $here/$0 > truncate.c
|
|
mycc -o truncate -Wall -Wextra -O2 truncate.c || exit 1
|
|
rm -f truncate.c
|
|
[ -d $RUNDIR ] || mkdir -p $RUNDIR
|
|
cd $RUNDIR
|
|
|
|
/tmp/truncate
|
|
|
|
rm -f /tmp/truncate
|
|
exit 0
|
|
EOF
|
|
#include <fcntl.h>
|
|
#include <err.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <time.h>
|
|
#include <unistd.h>
|
|
#include <sys/wait.h>
|
|
|
|
#define SIZ 512
|
|
char buf[SIZ];
|
|
|
|
void
|
|
test(void)
|
|
{
|
|
time_t start;
|
|
int fd[10], i, j;
|
|
char name[128];
|
|
|
|
for (j = 0; j < 10; j++) {
|
|
sprintf(name, "%05d.%05d", getpid(), j);
|
|
if ((fd[j] = open(name, O_WRONLY | O_CREAT | O_APPEND, 0666)) == -1)
|
|
err(1, "%s", name);
|
|
unlink(name);
|
|
}
|
|
|
|
start = time(NULL);
|
|
for (i = 0; i < 100000; i++) {
|
|
if (time(NULL) - start > 1200)
|
|
break;
|
|
for (j = 0; j < 10; j++) {
|
|
if (write(fd[j], buf, 2) != 2)
|
|
err(1, "write");
|
|
if (ftruncate(fd[j], 0) == -1)
|
|
err(1, "ftruncate");
|
|
}
|
|
}
|
|
|
|
_exit(0);
|
|
}
|
|
|
|
int
|
|
main(void)
|
|
{
|
|
int i, status;
|
|
|
|
for (i = 0; i < 20; i++) {
|
|
if (fork() == 0)
|
|
test();
|
|
}
|
|
for (i = 0; i < 20; i++)
|
|
wait(&status);
|
|
|
|
return (0);
|
|
}
|