b64df8133c
[ Upstream commit fe48319243a626c860fd666ca032daacc2ba84a5 ] When running under a pipe, some timer tests would not report output in real-time because stdout flushes were missing after printf()s that lacked a newline. This adds them to restore real-time status output that humans can enjoy. Signed-off-by: Kees Cook <keescook@chromium.org> Signed-off-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>
69 lines
1.5 KiB
C
69 lines
1.5 KiB
C
/* Set tai offset
|
|
* by: John Stultz <john.stultz@linaro.org>
|
|
* (C) Copyright Linaro 2013
|
|
* Licensed under the GPLv2
|
|
*
|
|
* 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.
|
|
*/
|
|
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <time.h>
|
|
#include <sys/time.h>
|
|
#include <sys/timex.h>
|
|
#include <string.h>
|
|
#include <signal.h>
|
|
#include <unistd.h>
|
|
#include "../kselftest.h"
|
|
|
|
int set_tai(int offset)
|
|
{
|
|
struct timex tx;
|
|
|
|
memset(&tx, 0, sizeof(tx));
|
|
|
|
tx.modes = ADJ_TAI;
|
|
tx.constant = offset;
|
|
|
|
return adjtimex(&tx);
|
|
}
|
|
|
|
int get_tai(void)
|
|
{
|
|
struct timex tx;
|
|
|
|
memset(&tx, 0, sizeof(tx));
|
|
|
|
adjtimex(&tx);
|
|
return tx.tai;
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
int i, ret;
|
|
|
|
ret = get_tai();
|
|
printf("tai offset started at %i\n", ret);
|
|
|
|
printf("Checking tai offsets can be properly set: ");
|
|
fflush(stdout);
|
|
for (i = 1; i <= 60; i++) {
|
|
ret = set_tai(i);
|
|
ret = get_tai();
|
|
if (ret != i) {
|
|
printf("[FAILED] expected: %i got %i\n", i, ret);
|
|
return ksft_exit_fail();
|
|
}
|
|
}
|
|
printf("[OK]\n");
|
|
return ksft_exit_pass();
|
|
}
|