/* * Copyright (c) Wipro Technologies Ltd, 2003. All Rights Reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it would be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. * * You should have received a copy of the GNU General Public License along * with this program; if not, write the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. * */ /************************************************************************** * * TEST IDENTIFIER : clock_settime02 * * EXECUTED BY : root / superuser * * TEST TITLE : Basic test for clock_settime(2) * * TEST CASE TOTAL : 1 * * AUTHOR : Aniruddha Marathe <aniruddha.marathe@wipro.com> * * SIGNALS * Uses SIGUSR1 to pause before test if option set. * (See the parse_opts(3) man page). * * DESCRIPTION * This is a Phase I test for the clock_settime(2) system call. * It is intended to provide a limited exposure of the system call. * * Setup: * Setup signal handling. * Pause for SIGUSR1 if option specified. * * Test: * Loop if the proper options are given. * Set the parameters of timespec struct * Execute system call * Check return code, if system call failed (return=-1) * Log the errno and Issue a FAIL message. * Otherwise, Issue a PASS message. * * Cleanup: * Print errno log and/or timing stats if options given * * USAGE: <for command-line> * clock_settime02 [-c n] [-e] [-i n] [-I x] [-P x] [-t] [-p] * where: * -c n : Run n copies simultaneously. * -e : Turn on errno logging. * -i n : Execute test n times. * -I x : Execute test for x seconds. * -p : Pause for SIGUSR1 before starting * -P x : Pause for x seconds between iterations. * -t : Turn on syscall timing. * *RESTRICTIONS: * None *****************************************************************************/ #include <stdlib.h> #include <errno.h> #include <time.h> #include <signal.h> #include "test.h" #include "common_timers.h" static void setup(void); static void cleanup(void); char *TCID = "clock_settime02"; int TST_TOTAL = 1; static struct timespec saved; int main(int ac, char **av) { int lc; struct timespec spec; tst_parse_opts(ac, av, NULL, NULL); setup(); for (lc = 0; TEST_LOOPING(lc); lc++) { tst_count = 0; spec.tv_sec = saved.tv_sec + 1; spec.tv_nsec = 0; TEST(ltp_syscall(__NR_clock_settime, CLOCK_REALTIME, &spec)); tst_resm((TEST_RETURN < 0 ? TFAIL | TTERRNO : TPASS), "clock_settime %s", (TEST_RETURN == 0 ? "passed" : "failed")); } cleanup(); tst_exit(); } static void setup(void) { tst_sig(NOFORK, DEF_HANDLER, cleanup); tst_require_root(); /* Save the current time specifications */ if (ltp_syscall(__NR_clock_gettime, CLOCK_REALTIME, &saved) < 0) tst_brkm(TBROK, NULL, "Could not save the current time"); TEST_PAUSE; } static void cleanup(void) { /* Set the saved time */ if (clock_settime(CLOCK_REALTIME, &saved) < 0) { tst_resm(TWARN, "FATAL COULD NOT RESET THE CLOCK"); tst_resm(TFAIL, "Error Setting Time, errno=%d", errno); } }