1 /* timespec -- System time interface
3 Copyright (C) 2000, 2002, 2004, 2005 Free Software Foundation, Inc.
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)
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.
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. */
19 #if ! defined TIMESPEC_H
22 # include <sys/types.h>
23 # if TIME_WITH_SYS_TIME
24 # include <sys/time.h>
28 # include <sys/time.h>
34 # if ! HAVE_STRUCT_TIMESPEC
35 /* Some systems don't define this struct, e.g., AIX 4.1, Ultrix 4.3. */
43 /* Return negative, zero, positive if A < B, A == B, A > B, respectively.
44 Assume the nanosecond components are in range, or close to it. */
46 timespec_cmp (struct timespec a, struct timespec b)
48 return (a.tv_sec < b.tv_sec ? -1
49 : a.tv_sec > b.tv_sec ? 1
50 : a.tv_nsec - b.tv_nsec);
53 # if ! HAVE_DECL_NANOSLEEP
54 /* Don't specify a prototype here. Some systems (e.g., OSF) declare
55 nanosleep with a conflicting one (const-less first parameter). */
59 void gettime (struct timespec *);
60 int settime (struct timespec const *);