| /* |
| * 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" |
| |
| void setup(void); |
| |
| char *TCID = "clock_settime02"; /* Test program identifier. */ |
| int TST_TOTAL = 1; /* Total number of test cases. */ |
| static struct timespec saved; /* Used to reset the time */ |
| |
| int main(int ac, char **av) |
| { |
| int lc; |
| const char *msg; |
| struct timespec spec; /* Used to specify time for test */ |
| |
| if ((msg = parse_opts(ac, av, NULL, NULL)) != NULL) |
| tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg); |
| |
| setup(); |
| |
| for (lc = 0; TEST_LOOPING(lc); lc++) { |
| |
| tst_count = 0; |
| |
| spec.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(); |
| } |
| |
| /* setup() - performs all ONE TIME setup for this test */ |
| void setup(void) |
| { |
| |
| tst_sig(NOFORK, DEF_HANDLER, cleanup); |
| |
| /* Check whether we are root */ |
| if (geteuid() != 0) { |
| tst_brkm(TBROK, NULL, "Test must be run as 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; |
| } |
| |
| /* |
| * cleanup() - Performs one time cleanup for this test at |
| * completion or premature exit |
| */ |
| |
| 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); |
| } |
| } |