blob: f15f6f3eb808ddf1f9602f26591b185fe5e9fe01 [file] [log] [blame]
/*
*
* Copyright (c) International Business Machines Corp., 2001
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See
* the GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* NAME
* settimeofday01.c
*
* DESCRIPTION
* Testcase to check the basic functionality of settimeofday().
*
* ALGORITHM
* Setup:
* Setup signal handling.
* Check that we are the proper user.
* Setup expected errnos.
* Pause for SIGUSER1 if option specified.
* Save the current time values.
* Loop if the proper options are given.
* Call settimeofday and verify the time was changed.
* Call settimeofday with invalid Args and verify that the call fails.
* Cleanup:
* Restore the original time values.
* Print errno log and/or timing stats if options given.
*
* USAGE: <for command-line>
* settimeofday01 [-c n] [-e] [-i n] [-I x] [-P x] [-t]
* where, -c n : Run n copies concurrently.
* -e : Turn on errno logging.
* -i n : Execute test n times.
* -I x : Execute test for x seconds.
* -P x : Pause for x seconds between iterations.
* -t : Turn on syscall timing.
*
* History
* 07/2001 John George
* -Ported
*
* Restrictions
* Must be run as root.
*/
#include <sys/time.h>
#include <errno.h>
#include <unistd.h>
#include "test.h"
#define FAILED 1
#define VAL_SEC 100
#define VAL_MSEC 100
#define ACCEPTABLE_DELTA 500 /* in milli-seconds */
char *TCID = "settimeofday01";
int TST_TOTAL = 1;
time_t save_tv_sec, save_tv_usec;
struct timeval tp, tp1, tp2;
void setup(void);
void cleanup(void);
#if !defined(UCLINUX)
int main(int argc, char **argv)
{
int lc;
const char *msg;
suseconds_t delta;
if ((msg = parse_opts(argc, argv, NULL, NULL)) != NULL) {
tst_brkm(TBROK, NULL, "OPTION PARSING ERROR - %s", msg);
}
setup();
for (lc = 0; TEST_LOOPING(lc); lc++) {
int condition_number = 1;
/* reset tst_count in case we are looping */
tst_count = 0;
tp.tv_sec = VAL_SEC;
tp.tv_usec = VAL_MSEC;
TEST(settimeofday(&tp, NULL));
if (TEST_RETURN == -1) {
tst_resm(TFAIL, "Error Setting Time, errno=%d",
TEST_ERRNO);
}
if ((gettimeofday(&tp2, (struct timezone *)&tp1)) == -1) {
tst_resm(TBROK, "Error Getting Time, errno=%d", errno);
}
if (tp2.tv_sec > tp.tv_sec) {
delta =
(suseconds_t) (tp2.tv_sec - tp.tv_sec) * 1000 +
(tp2.tv_usec - tp.tv_usec) / 1000;
} else {
delta =
(suseconds_t) (tp.tv_sec - tp2.tv_sec) * 1000 +
(tp.tv_usec - tp2.tv_usec) / 1000;
}
if (delta > -ACCEPTABLE_DELTA && delta < ACCEPTABLE_DELTA) {
tst_resm(TPASS, "Test condition %d successful",
condition_number++);
} else {
tst_resm(TFAIL, "Test condition %d failed",
condition_number++);
}
/* Invalid Args : Error Condition where tp = NULL */
TEST(settimeofday((struct timeval *)-1, NULL));
if (TEST_RETURN == -1) {
tst_resm(TPASS, "Test condition %d successful",
condition_number++);
} else {
tst_resm(TFAIL, "Test condition %d failed",
condition_number);
}
}
cleanup();
tst_exit();
}
#else
int main(void)
{
tst_resm(TINFO, "test is not available on uClinux");
tst_exit();
}
#endif /* if !defined(UCLINUX) */
/*
* setup()
* performs all ONE TIME setup for this test
*/
void setup(void)
{
tst_require_root(NULL);
tst_sig(FORK, DEF_HANDLER, cleanup);
/* Pause if that option was specified
* TEST_PAUSE contains the code to fork the test with the -c option.
*/
TEST_PAUSE;
/* Save the current time values */
if ((gettimeofday(&tp, (struct timezone *)&tp1)) == -1) {
tst_brkm(TBROK, cleanup, "gettimeofday failed. "
"errno=%d", errno);
}
save_tv_sec = tp.tv_sec;
save_tv_usec = tp.tv_usec;
}
/*
* cleanup()
* performs all ONE TIME cleanup for this test at
* completion or premature exit
*/
void cleanup(void)
{
/* restore the original time values. */
tp.tv_sec = save_tv_sec;
tp.tv_usec = save_tv_usec;
if ((settimeofday(&tp, NULL)) == -1) {
tst_resm(TWARN, "FATAL COULD NOT RESET THE CLOCK");
tst_resm(TFAIL, "Error Setting Time, errno=%d", errno);
}
}