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/*-
* Copyright (c) 2008 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.
*
*/
/* Main program for all test programs */
#include <sys/wait.h>
#include <sys/stat.h>
#include <stdio.h>
#include <signal.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <err.h>
#include <errno.h>
#include "stress.h"
volatile int done_testing;
static int cleanupcalled = 0;
char *home;
static pid_t *r;
static void
handler(int i __unused)
{
int j;
done_testing = 1;
for (j = 0; j < op->incarnations; j++) {
if (op->verbose > 2)
printf("handler: kill -HUP %d\n", r[j]);
if (r[j] != 0 && kill(r[j], SIGHUP) == -1)
if (errno != ESRCH)
warn("kill(%d, SIGHUP), %s:%d", r[j], __FILE__, __LINE__);
}
if (op->kill == 1) {
sleep(5);
/* test programs may have blocked for the SIGHUP, so try harder */
for (j = 0; j < op->incarnations; j++) {
if (op->verbose > 2)
printf("handler: kill -KILL %d\n", r[j]);
if (r[j] != 0)
(void) kill(r[j], SIGKILL);
}
}
}
static void
run_test_handler(int i __unused)
{
done_testing = 1;
}
static void
exit_handler(int i __unused)
{
_exit(1);
}
static void
callcleanup(void)
{
if (cleanupcalled == 0)
cleanup();
cleanupcalled = 1;
}
static void
run_tests(int i)
{
time_t start;
int e;
signal(SIGHUP, run_test_handler);
signal(SIGINT, exit_handler);
atexit(callcleanup);
setup(i);
if ((strcmp(getprogname(), "run") != 0) && (op->nodelay == 0))
sleep(random_int(1,10));
e = 0;
start = time(NULL);
while (done_testing == 0 && e == 0 &&
(time(NULL) - start) < op->run_time) {
e = test();
}
callcleanup();
exit(e);
}
static void
run_incarnations(void)
{
int e, i, s;
e = 0;
signal(SIGHUP, handler);
for (i = 0; i < op->incarnations && done_testing == 0; i++) {
if ((r[i] = fork()) == 0) {
run_tests(i);
}
if (r[i] < 0) {
warn("fork(), %s:%d", __FILE__, __LINE__);
r[i] = 0;
break;
}
}
for (i = 0; i < op->incarnations; i++) {
if (r[i] != 0 && waitpid(r[i], &s, 0) == -1)
warn("waitpid(%d), %s:%d", r[i], __FILE__, __LINE__);
if (s != 0)
e = 1;
}
exit(e);
}
static int
run_test(void)
{
pid_t p;
time_t start;
int status = 0;
if (random_int(1,100) > op->load)
return (status);
show_status();
start = time(NULL);
done_testing = 0;
fflush(stdout);
rmval();
p = fork();
if (p == 0)
run_incarnations();
if (p < 0)
err(1, "fork() in %s:%d", __FILE__, __LINE__);
while (done_testing != 1 &&
(time(NULL) - start) < op->run_time) {
sleep(1);
if (waitpid(p, &status, WNOHANG) == p)
return (status != 0);
}
if (kill(p, SIGHUP) == -1)
warn("kill(%d, SIGHUP), %s:%d", p, __FILE__, __LINE__);
if (waitpid(p, &status, 0) == -1)
err(1, "waitpid(%d), %s:%d", p, __FILE__, __LINE__);
return (status != 0);
}
int
main(int argc, char **argv)
{
struct stat sb;
int status = 0;
options(argc, argv);
umask(0);
if (stat(op->wd, &sb) == -1) {
if (mkdir(op->wd, 0770) == -1)
if (errno != EEXIST)
err(1, "mkdir(%s) %s:%d", op->wd, __FILE__, __LINE__);
} else if ((sb.st_mode & S_IRWXU) == 0)
errx(1, "No RWX access to %s", op->wd);
if (stat(op->cd, &sb) == -1) {
if (mkdir(op->cd, 0770) == -1)
if (errno != EEXIST)
err(1, "mkdir(%s) %s:%d", op->cd, __FILE__, __LINE__);
}
if ((home = getcwd(NULL, 0)) == NULL)
err(1, "getcwd(), %s:%d", __FILE__, __LINE__);
if (chdir(op->wd) == -1)
err(1, "chdir(%s) %s:%d", op->wd, __FILE__, __LINE__);
r = (pid_t *)calloc(1, op->incarnations * sizeof(pid_t));
status = run_test();
return (status);
}