/* timespec -- System time interface Copyright (C) 2000, 2002, 2004, 2005 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program 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 General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #if ! defined TIMESPEC_H # define TIMESPEC_H # include <sys/types.h> # if TIME_WITH_SYS_TIME # include <sys/time.h> # include <time.h> # else # if HAVE_SYS_TIME_H # include <sys/time.h> # else # include <time.h> # endif # endif # if ! HAVE_STRUCT_TIMESPEC /* Some systems don't define this struct, e.g., AIX 4.1, Ultrix 4.3. */ struct timespec { time_t tv_sec; long tv_nsec; }; # endif /* Return negative, zero, positive if A < B, A == B, A > B, respectively. Assume the nanosecond components are in range, or close to it. */ static inline int timespec_cmp (struct timespec a, struct timespec b) { return (a.tv_sec < b.tv_sec ? -1 : a.tv_sec > b.tv_sec ? 1 : a.tv_nsec - b.tv_nsec); } # if ! HAVE_DECL_NANOSLEEP /* Don't specify a prototype here. Some systems (e.g., OSF) declare nanosleep with a conflicting one (const-less first parameter). */ int nanosleep (); # endif void gettime (struct timespec *); int settime (struct timespec const *); #endif