/* Test setting the monotonic clock.  */

#include <time.h>

#include <unistd.h>

#if defined CLOCK_MONOTONIC && defined _POSIX_MONOTONIC_CLOCK

# include <errno.h>

# include <stdio.h>

static int

do_test (void)

{

  if (sysconf (_SC_MONOTONIC_CLOCK) <= 0)

    return 0;

  struct timespec ts;

  if (clock_gettime (CLOCK_MONOTONIC, &ts) != 0)

    {

      puts ("clock_gettime(CLOCK_MONOTONIC) failed");

      return 1;

    }

  /* Setting the monotonic clock must fail.  */

  if (clock_settime (CLOCK_MONOTONIC, &ts) != -1)

    {

      puts ("clock_settime(CLOCK_MONOTONIC) did not fail");

      return 1;

    }

  if (errno != EINVAL)

    {

      printf ("clock_settime(CLOCK_MONOTONIC) set errno to %d, expected %d\n",

	      errno, EINVAL);

      return 1;

    }

  return 0;

}

# define TEST_FUNCTION do_test ()

#else

# define TEST_FUNCTION	0

#endif

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