selftests/timers: Add set-tai from the timetest suite (3a92a15f) · Commits · 戴 / test

tools/testing/selftests/timers/Makefile

+2 −1

Original line number	Diff line number	Diff line
		@@ -5,7 +5,7 @@ LDFLAGS += -lrt -lpthread
		bins = posix_timers nanosleep inconsistency-check nsleep-lat raw_skew \
		set-timer-lat threadtest mqueue-lat valid-adjtimex \
		alarmtimer-suspend change_skew skew_consistency clocksource-switch \
		leap-a-day leapcrash
		leap-a-day leapcrash set-tai

		all: ${bins}

		@@ -32,6 +32,7 @@ run_destructive_tests: run_tests
		./clocksource-switch
		./leap-a-day -s -i 10
		./leapcrash
		./set-tai

		clean:
		rm -f ${bins}

tools/testing/selftests/timers/set-tai.c

0 → 100644

+79 −0

Original line number	Diff line number	Diff line
		/* 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);
		}
		static inline int ksft_exit_fail(void)
		{
		exit(1);
		}
		#endif

		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: ");
		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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