1 /* 2 * Copyright (c) 2004, Bull S.A.. All rights reserved. 3 * Created by: Sebastien Decugis 4 5 * This program is free software; you can redistribute it and/or modify it 6 * under the terms of version 2 of the GNU General Public License as 7 * published by the Free Software Foundation. 8 * 9 * This program is distributed in the hope that it would be useful, but 10 * WITHOUT ANY WARRANTY; without even the implied warranty of 11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 12 * 13 * You should have received a copy of the GNU General Public License along 14 * with this program; if not, write the Free Software Foundation, Inc., 15 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 16 17 * This sample test aims to check the following assertion: 18 * 19 * The CPU-time clock of the new process/ new process's thread is initialized to 0. 20 21 * The steps are: 22 * -> compute until the parent process CPU-time clock is greater than 1 sec. 23 * -> fork 24 * -> check the child process process CPU time and thread CPU time clocks. 25 26 * The test fails if any of these clocks are > 1sec. 27 28 */ 29 30 #include <pthread.h> 31 #include <stdarg.h> 32 #include <stdio.h> 33 #include <stdlib.h> 34 #include <string.h> 35 #include <unistd.h> 36 37 #include <sys/wait.h> 38 #include <errno.h> 39 40 #include <time.h> 41 42 #include "../testfrmw/testfrmw.h" 43 #include "../testfrmw/testfrmw.c" 44 45 #ifndef VERBOSE 46 #define VERBOSE 1 47 #endif 48 49 int main(void) 50 { 51 int ret, status; 52 pid_t child, ctl; 53 54 long ctp, ctt; 55 clockid_t clp, clt; 56 57 struct timespec tp; 58 59 output_init(); 60 61 ctp = sysconf(_SC_CPUTIME); 62 ctt = sysconf(_SC_THREAD_CPUTIME); 63 64 if ((ctp == -1) && (ctt == -1)) { 65 UNTESTED 66 ("The testcase needs CPUTIME or THREAD_CPUTIME support"); 67 } 68 #if VERBOSE > 0 69 output("System abilities:\n"); 70 71 output(" _POSIX_CPUTIME : %ld\n", ctp); 72 73 output(" _POSIX_THREAD_CPUTIME : %ld\n", ctt); 74 75 #endif 76 if (ctp > 0) { 77 ret = clock_getcpuclockid(0, &clp); 78 79 if (ret != 0) { 80 UNRESOLVED(ret, 81 "Unable to get cpu-time clock id of the process"); 82 } 83 84 do { 85 ret = clock_gettime(clp, &tp); 86 87 if (ret != 0) { 88 UNRESOLVED(errno, 89 "Failed to read CPU time clock"); 90 } 91 } 92 while (tp.tv_sec < 1); 93 } 94 95 if (ctt > 0) { 96 ret = pthread_getcpuclockid(pthread_self(), &clt); 97 98 if (ret != 0) { 99 UNRESOLVED(ret, 100 "Unable to get cpu-time clock id of the thread"); 101 } 102 103 do { 104 ret = clock_gettime(clt, &tp); 105 106 if (ret != 0) { 107 UNRESOLVED(errno, 108 "Failed to read thread CPU time clock"); 109 } 110 } 111 while (tp.tv_sec < 1); 112 } 113 114 /* Create the child */ 115 child = fork(); 116 117 if (child == -1) { 118 UNRESOLVED(errno, "Failed to fork"); 119 } 120 121 /* child */ 122 if (child == 0) { 123 if (ctp > 0) { 124 ret = clock_getcpuclockid(0, &clp); 125 126 if (ret != 0) { 127 UNRESOLVED(ret, 128 "Unable to get cpu-time clock id of the process"); 129 } 130 131 ret = clock_gettime(clp, &tp); 132 133 if (ret != 0) { 134 UNRESOLVED(errno, 135 "Failed to read CPU time clock"); 136 } 137 138 if (tp.tv_sec > 0) { 139 FAILED 140 ("The process CPU-time clock was not reset in child\n"); 141 } 142 } 143 144 if (ctt > 0) { 145 ret = pthread_getcpuclockid(pthread_self(), &clt); 146 147 if (ret != 0) { 148 UNRESOLVED(ret, 149 "Unable to get cpu-time clock id of the thread"); 150 } 151 152 ret = clock_gettime(clt, &tp); 153 154 if (ret != 0) { 155 UNRESOLVED(errno, 156 "Failed to read thread CPU time clock"); 157 } 158 159 if (tp.tv_sec > 0) { 160 FAILED 161 ("The thread CPU-time clock was not reset in child\n"); 162 } 163 } 164 165 exit(PTS_PASS); 166 } 167 168 /* Parent joins the child */ 169 ctl = waitpid(child, &status, 0); 170 171 if (ctl != child) { 172 UNRESOLVED(errno, "Waitpid returned the wrong PID"); 173 } 174 175 if (!WIFEXITED(status) || (WEXITSTATUS(status) != PTS_PASS)) { 176 FAILED("Child exited abnormally"); 177 } 178 179 #if VERBOSE > 0 180 output("Test passed\n"); 181 #endif 182 PASSED; 183 } 184
