/* Verify that ftime is sane.

   Copyright (C) 2014-2018 Free Software Foundation, Inc.

   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or

   modify it under the terms of the GNU Lesser General Public

   License as published by the Free Software Foundation; either

   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library 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

   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public

   License along with the GNU C Library; if not, see

   <http://www.gnu.org/licenses/>.  */

#include <sys/timeb.h>

#include <stdio.h>

static int

do_test (void)

{

  struct timeb prev, curr = {.time = 0, .millitm = 0};

  int sec = 0;

  while (sec != 3)

    {

      prev = curr;

      if (ftime (&curr))

        {

          printf ("ftime returned an error\n");

          return 1;

        }

      if (curr.time < prev.time)

        {

          printf ("ftime's time flowed backwards\n");

          return 1;

        }

      if (curr.time == prev.time

          && curr.millitm < prev.millitm)

        {

          printf ("ftime's millitm flowed backwards\n");

          return 1;

        }

      if (curr.time > prev.time)

        sec ++;

    }

  return 0;

}

#define TIMEOUT 3

#define TEST_FUNCTION do_test ()

#include "../test-skeleton.c"