46 lines
667 B
C
46 lines
667 B
C
|
/* SPDX-License-Identifier: GPL-2.0 */
|
||
|
|
#include <math.h>
|
||
|
|
#include <signal.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <linux/compiler.h>
|
||
|
|
#include <sys/wait.h>
|
||
|
|
#include "../tests.h"
|
||
|
|
|
||
|
|
static volatile sig_atomic_t done;
|
||
|
|
|
||
|
|
static void sighandler(int sig __maybe_unused)
|
||
|
|
{
|
||
|
|
done = 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int __sqrtloop(int sec)
|
||
|
|
{
|
||
|
|
signal(SIGALRM, sighandler);
|
||
|
|
alarm(sec);
|
||
|
|
|
||
|
|
while (!done)
|
||
|
|
(void)sqrt(rand());
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int sqrtloop(int argc, const char **argv)
|
||
|
|
{
|
||
|
|
int sec = 1;
|
||
|
|
|
||
|
|
if (argc > 0)
|
||
|
|
sec = atoi(argv[0]);
|
||
|
|
|
||
|
|
switch (fork()) {
|
||
|
|
case 0:
|
||
|
|
return __sqrtloop(sec);
|
||
|
|
case -1:
|
||
|
|
return -1;
|
||
|
|
default:
|
||
|
|
wait(NULL);
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
DEFINE_WORKLOAD(sqrtloop);
|