162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 262306a36Sopenharmony_ci#include <math.h> 362306a36Sopenharmony_ci#include <signal.h> 462306a36Sopenharmony_ci#include <stdlib.h> 562306a36Sopenharmony_ci#include <unistd.h> 662306a36Sopenharmony_ci#include <linux/compiler.h> 762306a36Sopenharmony_ci#include <sys/wait.h> 862306a36Sopenharmony_ci#include "../tests.h" 962306a36Sopenharmony_ci 1062306a36Sopenharmony_cistatic volatile sig_atomic_t done; 1162306a36Sopenharmony_ci 1262306a36Sopenharmony_cistatic void sighandler(int sig __maybe_unused) 1362306a36Sopenharmony_ci{ 1462306a36Sopenharmony_ci done = 1; 1562306a36Sopenharmony_ci} 1662306a36Sopenharmony_ci 1762306a36Sopenharmony_cistatic int __sqrtloop(int sec) 1862306a36Sopenharmony_ci{ 1962306a36Sopenharmony_ci signal(SIGALRM, sighandler); 2062306a36Sopenharmony_ci alarm(sec); 2162306a36Sopenharmony_ci 2262306a36Sopenharmony_ci while (!done) 2362306a36Sopenharmony_ci (void)sqrt(rand()); 2462306a36Sopenharmony_ci return 0; 2562306a36Sopenharmony_ci} 2662306a36Sopenharmony_ci 2762306a36Sopenharmony_cistatic int sqrtloop(int argc, const char **argv) 2862306a36Sopenharmony_ci{ 2962306a36Sopenharmony_ci int sec = 1; 3062306a36Sopenharmony_ci 3162306a36Sopenharmony_ci if (argc > 0) 3262306a36Sopenharmony_ci sec = atoi(argv[0]); 3362306a36Sopenharmony_ci 3462306a36Sopenharmony_ci switch (fork()) { 3562306a36Sopenharmony_ci case 0: 3662306a36Sopenharmony_ci return __sqrtloop(sec); 3762306a36Sopenharmony_ci case -1: 3862306a36Sopenharmony_ci return -1; 3962306a36Sopenharmony_ci default: 4062306a36Sopenharmony_ci wait(NULL); 4162306a36Sopenharmony_ci } 4262306a36Sopenharmony_ci return 0; 4362306a36Sopenharmony_ci} 4462306a36Sopenharmony_ci 4562306a36Sopenharmony_ciDEFINE_WORKLOAD(sqrtloop); 46