2 * Copyright (c) 2008 Peter Holm <pho@FreeBSD.org>
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 #include <sys/param.h>
35 #include <sys/syslimits.h>
41 static char path[128];
42 static unsigned long size;
57 size = in / op->incarnations;
61 pct = random_int(1, 90);
62 size = size / 100 * pct + 1;
64 if (size > 20000 && op->hog == 0)
65 size = 20000; /* arbitrary limit number of files pr. dir */
70 /* Resource requirements: */
71 reserve_in = 2 * op->incarnations + 1;
72 reserve_bl = 26 * size * op->incarnations;
74 size = bl / 26 * op->incarnations;
76 size = reserve_in = reserve_bl = 0;
79 printf("link(size=%lu, incarnations=%d). Free(%jdk, %jd), reserve(%jdk, %jd)\n",
80 size, op->incarnations, bl/1024, in, reserve_bl/1024, reserve_in);
81 reservedf(reserve_bl, reserve_in);
89 sprintf(path,"%s.%05d", getprogname(), getpid());
90 if (mkdir(path, 0770) < 0)
91 err(1, "mkdir(%s), %s:%d", path, __FILE__, __LINE__);
93 if (chdir(path) == -1)
94 err(1, "chdir(%s), %s:%d", path, __FILE__, __LINE__);
103 if (path[0] != 0 && rmdir(path) == -1)
104 warn("rmdir(%s), %s:%d", path, __FILE__, __LINE__);
116 for (j = 0; j < size && done_testing == 0; j++) {
117 sprintf(file,"p%05d.%05d", pid, j);
119 if ((fd = creat(file, 0660)) == -1) {
120 if (errno != EINTR) {
121 warn("creat(%s)", file);
125 if (fd != -1 && close(fd) == -1)
126 err(2, "close(%d)", j);
129 if (link(lfile, file) == -1) {
130 if (errno != EINTR) {
131 warn("link(%s, %s)", lfile, file);
139 for (i = --j; i >= 0; i--) {
140 sprintf(file,"p%05d.%05d", pid, i);
141 if (unlink(file) == -1)
142 err(3, "unlink(%s)", file);