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