cregit-Linux how code gets into the kernel

Release 4.7 tools/testing/selftests/timers/set-tai.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>
#ifdef KTEST
#include "../kselftest.h"
#else

static inline int ksft_exit_pass(void) { exit(0); }

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john stultzjohn stultz14100.00%1100.00%
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static inline int ksft_exit_fail(void) { exit(1); }

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john stultzjohn stultz14100.00%1100.00%
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#endif
int set_tai(int offset) { struct timex tx; memset(&tx, 0, sizeof(tx)); tx.modes = ADJ_TAI; tx.constant = offset; return adjtimex(&tx); }

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john stultzjohn stultz44100.00%1100.00%
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int get_tai(void) { struct timex tx; memset(&tx, 0, sizeof(tx)); adjtimex(&tx); return tx.tai; }

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john stultzjohn stultz35100.00%1100.00%
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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: "); 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(); }

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john stultzjohn stultz92100.00%1100.00%
Total92100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
john stultzjohn stultz234100.00%1100.00%
Total234100.00%1100.00%
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