#!/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); }