/* Copyright (C) 2003-2018 Free Software Foundation, Inc.
   This file is part of the GNU C Library.
   Contributed by Ulrich Drepper <drepper@redhat.com>, 2003.

   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; see the file COPYING.LIB.  If
   not, see <http://www.gnu.org/licenses/>.  */

#include <errno.h>
#include <stdlib.h>
#include <time.h>
#include <sysdep.h>
#include <y2038-support.h>
#include "kernel-posix-timers.h"


#ifdef timer_gettime_alias
# define timer_gettime timer_gettime_alias
#endif


int
timer_gettime (timer_t timerid, struct itimerspec *value)
{
#undef timer_gettime
  struct timer *kt = (struct timer *) timerid;

  /* Delete the kernel timer object.  */
  int res = INLINE_SYSCALL (timer_gettime, 2, kt->ktimerid, value);

  return res;
}

/* 64-bit time version */

int
__timer_gettime64 (timer_t timerid, struct __itimerspec64 *value)
{
  struct itimerspec value32;
  struct timer *kt = (struct timer *) timerid;
  int res;

#ifdef __NR_timer_gettime64
  if (__y2038_get_kernel_support () > 0)
    {
      res = INLINE_SYSCALL (timer_gettime, 2, kt->ktimerid, value);
      if (res == 0 || errno != ENOSYS)
        return res;
      __y2038_set_kernel_support (-1);
    }
#endif

  res = INLINE_SYSCALL (timer_gettime, 2, kt->ktimerid, &value32);

  if (res == 0)
    {
      value->it_value.tv_sec = value32.it_value.tv_sec;
      value->it_value.tv_nsec = value32.it_value.tv_nsec;
      value->it_interval.tv_sec = value32.it_interval.tv_sec;
      value->it_interval.tv_nsec = value32.it_interval.tv_nsec;
    }

  return res;
}