1/* timespec -- System time interface
2
3   Copyright (C) 2000, 2002, 2004, 2005, 2007 Free Software Foundation, Inc.
4
5   This program is free software; you can redistribute it and/or modify
6   it under the terms of the GNU General Public License as published by
7   the Free Software Foundation; either version 2, or (at your option)
8   any later version.
9
10   This program is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13   GNU General Public License for more details.
14
15   You should have received a copy of the GNU General Public License
16   along with this program; if not, write to the Free Software Foundation,
17   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
18
19#if ! defined TIMESPEC_H
20# define TIMESPEC_H
21
22# include <time.h>
23
24/* Return negative, zero, positive if A < B, A == B, A > B, respectively.
25   Assume the nanosecond components are in range, or close to it.  */
26static inline int
27timespec_cmp (struct timespec a, struct timespec b)
28{
29  return (a.tv_sec < b.tv_sec ? -1
30	  : a.tv_sec > b.tv_sec ? 1
31	  : a.tv_nsec - b.tv_nsec);
32}
33
34void gettime (struct timespec *);
35int settime (struct timespec const *);
36
37#endif
38