1 /* SPDX-License-Identifier: GPL-2.0 */
2 #include <math.h>
3 #include <signal.h>
4 #include <stdlib.h>
5 #include <unistd.h>
6 #include <linux/compiler.h>
7 #include <sys/wait.h>
8 #include "../tests.h"
9
10 static volatile sig_atomic_t done;
11
12 static void sighandler(int sig __maybe_unused)
13 {
14 done = 1;
15 }
16
17 static int __sqrtloop(int sec)
18 {
19 signal(SIGALRM, sighandler);
20 alarm(sec);
21
22 while (!done)
23 (void)sqrt(rand());
24 return 0;
25 }
26
27 static int sqrtloop(int argc, const char **argv)
28 {
29 int sec = 1;
30
31 if (argc > 0)
32 sec = atoi(argv[0]);
33
34 switch (fork()) {
35 case 0:
36 return __sqrtloop(sec);
37 case -1:
38 return -1;
39 default:
40 wait(NULL);
41 }
42 return 0;
43 }
44
45 DEFINE_WORKLOAD(sqrtloop);
46
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