1 /* 2 * Copyright (c) Wipro Technologies Ltd, 2003. All Rights Reserved. 3 * 4 * This program is free software; you can redistribute it and/or modify it 5 * under the terms of version 2 of the GNU General Public License as 6 * published by the Free Software Foundation. 7 * 8 * This program is distributed in the hope that it would be useful, but 9 * WITHOUT ANY WARRANTY; without even the implied warranty of 10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. 11 * 12 * You should have received a copy of the GNU General Public License along 13 * with this program; if not, write the Free Software Foundation, Inc., 14 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 15 * 16 */ 17 /************************************************************************** 18 * 19 * TEST IDENTIFIER : timer_settime02 20 * 21 * EXECUTED BY : anyone 22 * 23 * TEST TITLE : Basic test for timer_settime(2) 24 * 25 * TEST CASE TOTAL : 4 26 * 27 * AUTHOR : Aniruddha Marathe <aniruddha.marathe (at) wipro.com> 28 * 29 * SIGNALS 30 * Uses SIGUSR1 to pause before test if option set. 31 * (See the parse_opts(3) man page). 32 * 33 * DESCRIPTION 34 * This is a Phase I test for the timer_settime(2) system call. 35 * It is intended to provide a limited exposure of the system call. 36 * 37 * Setup: 38 * Setup signal handling. 39 * Pause for SIGUSR1 if option specified. 40 * 41 * Test: 42 * Loop if the proper options are given. 43 * setup individual test 44 * Execute system call 45 * Check return code, if system call failed (return=-1) 46 * Log the errno and Issue a FAIL message. 47 * Otherwise, Issue a PASS message. 48 * 49 * Cleanup: 50 * Print errno log and/or timing stats if options given 51 * 52 * USAGE: <for command-line> 53 * timer_settime02 [-c n] [-e] [-i n] [-I x] [-P x] [-t] [-p] 54 * where: 55 * -c n : Run n copies simultaneously. 56 * -e : Turn on errno logging. 57 * -i n : Execute test n times. 58 * -I x : Execute test for x seconds. 59 * -p : Pause for SIGUSR1 before starting 60 * -P x : Pause for x seconds between iterations. 61 * -t : Turn on syscall timing. 62 * 63 *RESTRICTIONS: 64 * None 65 *****************************************************************************/ 66 67 #include <stdlib.h> 68 #include <errno.h> 69 #include <time.h> 70 #include <signal.h> 71 72 #include "test.h" 73 #include "common_timers.h" 74 75 void setup(void); 76 static int setup_test(int option); 77 78 char *TCID = "timer_settime02"; /* Test program identifier. */ 79 int TST_TOTAL = 4; /* Total number of test cases. */ 80 81 static struct itimerspec new_set, old_set, *old_temp; 82 static kernel_timer_t timer; 83 static int flag; 84 85 int main(int ac, char **av) 86 { 87 int lc, i; 88 89 tst_parse_opts(ac, av, NULL, NULL); 90 91 setup(); 92 93 for (lc = 0; TEST_LOOPING(lc); lc++) { 94 95 tst_count = 0; 96 97 for (i = 0; i < TST_TOTAL; i++) { 98 99 /* Set up individual test */ 100 if (setup_test(i) == 0) { 101 TEST(ltp_syscall(__NR_timer_settime, timer, 102 flag, &new_set, old_temp)); 103 tst_resm((TEST_RETURN == 0 ? 104 TPASS : 105 TFAIL | TTERRNO), 106 "%s", 107 (TEST_RETURN == 108 0 ? "passed" : "failed") 109 ); 110 } 111 112 } 113 } 114 115 cleanup(); 116 tst_exit(); 117 } 118 119 /* This function does set up for individual tests */ 120 static int setup_test(int option) 121 { 122 struct timespec timenow; /* Used to obtain current time */ 123 int rc = 0; 124 125 switch (option) { 126 case 0: 127 /* This is general initialization. 128 * make old_setting NULL 129 * make flags equal to zero 130 * use one-shot timer 131 */ 132 old_temp = NULL; 133 new_set.it_interval.tv_sec = 0; 134 new_set.it_interval.tv_nsec = 0; 135 new_set.it_value.tv_sec = 5; 136 new_set.it_value.tv_nsec = 0; 137 flag = 0; 138 break; 139 case 1: 140 /* get the old_setting in old_set 141 * This test case also takes care 142 * of situation where the timerid is 143 * already armed 144 */ 145 old_temp = &old_set; 146 break; 147 case 2: 148 /* Use the periodic timer */ 149 new_set.it_interval.tv_sec = 5; 150 new_set.it_value.tv_sec = 0; 151 break; 152 case 3: 153 /* Use TIMER_ABSTIME flag for setting 154 * absolute time for timer 155 */ 156 flag = TIMER_ABSTIME; 157 /* 158 * Let's not use the linux_syscall_number syscall(2) 159 * wrapper here because our primary test focus is 160 * timer_create, not clock_gettime. That's covered in 161 * those respective tests. 162 */ 163 if (clock_gettime(CLOCK_REALTIME, &timenow) < 0) { 164 tst_resm(TWARN | TERRNO, 165 "clock_gettime failed; skipping the test"); 166 rc = -1; 167 } else { 168 new_set.it_value.tv_sec = timenow.tv_sec + 25; 169 } 170 break; 171 } 172 return rc; 173 } 174 175 /* setup() - performs all ONE TIME setup for this test */ 176 void setup(void) 177 { 178 179 tst_sig(NOFORK, DEF_HANDLER, cleanup); 180 181 TEST_PAUSE; 182 183 if (ltp_syscall(__NR_timer_create, CLOCK_REALTIME, NULL, &timer) < 0) 184 tst_brkm(TBROK, NULL, "timer_create failed"); 185 } 186 187 /* 188 * cleanup() - Performs one time cleanup for this test at 189 * completion or premature exit 190 */ 191 void cleanup(void) 192 { 193 } 194
