1#!/bin/sh 2 3# 4# Copyright (c) 2009 Peter Holm <pho@FreeBSD.org> 5# All rights reserved. 6# 7# Redistribution and use in source and binary forms, with or without 8# modification, are permitted provided that the following conditions 9# are met: 10# 1. Redistributions of source code must retain the above copyright 11# notice, this list of conditions and the following disclaimer. 12# 2. Redistributions in binary form must reproduce the above copyright 13# notice, this list of conditions and the following disclaimer in the 14# documentation and/or other materials provided with the distribution. 15# 16# THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 17# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19# ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 20# FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21# DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22# OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23# HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25# OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26# SUCH DAMAGE. 27# 28# $FreeBSD$ 29# 30 31 32. ../default.cfg 33 34here=`pwd` 35cd /tmp 36sed '1,/^EOF/d' < $here/$0 > truncate2.c 37cc -o truncate2 -Wall -O2 truncate2.c 38rm -f truncate2.c 39[ -d $RUNDIR ] || mkdir -p $RUNDIR 40cd $RUNDIR 41 42/tmp/truncate2 & 43 44sleep 1 45while ps | grep -v grep | egrep -q "truncate2$"; do 46 $here/../testcases/swap/swap -t 2m -i 20 47done 48 49rm -f /tmp/truncate2 50exit 0 51EOF 52#include <fcntl.h> 53#include <err.h> 54#include <stdio.h> 55#include <stdlib.h> 56#include <unistd.h> 57#include <sys/wait.h> 58 59#define SIZ 512 60char buf[SIZ]; 61 62void 63test(void) 64{ 65 int fd[10], i, j; 66 char name[128]; 67 off_t len; 68 69 for (j = 0; j < 10; j++) { 70 sprintf(name, "%05d.%05d", getpid(), j); 71 fd[j] = open(name, O_WRONLY | O_CREAT | O_APPEND, 0666); 72 if (fd[j] == -1) 73 err(1, name); 74 unlink(name); 75 } 76 77 for (i = 0; i < 100; i++) { 78 for (j = 0; j < 10; j++) { 79 if (write(fd[j], buf, 2) != 2) 80 err(1, "write"); 81 len = arc4random() % 1024 * 1024; 82 if (ftruncate(fd[j], len) == -1) 83 err(1, "ftruncate"); 84 } 85 } 86 87 exit(0); 88} 89int 90main(int argc, char **argv) 91{ 92 int i, status; 93 94 for (i = 0; i < 20; i++) { 95 if (fork() == 0) 96 test(); 97 } 98 for (i = 0; i < 20; i++) 99 wait(&status); 100 101 return (0); 102} 103