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/* clock_gettime -- Get current time from a POSIX clockid_t. Linux version.
Copyright (C) 2003-2012 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 <sysdep.h>
#include <errno.h>
#include <time.h>
#include "kernel-posix-cpu-timers.h"
#include <kernel-features.h>
#ifndef HAVE_CLOCK_GETTIME_VSYSCALL
# undef INTERNAL_VSYSCALL
# define INTERNAL_VSYSCALL INTERNAL_SYSCALL
# undef INLINE_VSYSCALL
# define INLINE_VSYSCALL INLINE_SYSCALL
#else
# include <bits/libc-vdso.h>
#endif
#ifndef SYSCALL_GETTIME
# define SYSCALL_GETTIME(id, tp) \
INLINE_VSYSCALL (clock_gettime, 2, id, tp)
#endif
#ifndef INTERNAL_GETTIME
# define INTERNAL_GETTIME(id, tp) \
INTERNAL_VSYSCALL (clock_gettime, err, 2, id, tp)
#endif
/* The REALTIME and MONOTONIC clock are definitely supported in the
kernel. */
#define SYSDEP_GETTIME \
SYSDEP_GETTIME_CPUTIME; \
case CLOCK_REALTIME: \
case CLOCK_MONOTONIC: \
retval = SYSCALL_GETTIME (clock_id, tp); \
break
/* We handled the REALTIME clock here. */
#define HANDLED_REALTIME 1
#define HANDLED_CPUTIME 1
#define SYSDEP_GETTIME_CPU(clock_id, tp) \
retval = SYSCALL_GETTIME (clock_id, tp); \
break
#define SYSDEP_GETTIME_CPUTIME /* Default catches them too. */
#include <sysdeps/unix/clock_gettime.c>
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