1 /* $FreeBSD$ */ 2 3 /* 4 * Copyright (c) 1982, 1986, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 * 31 * @(#)time.h 8.5 (Berkeley) 5/4/95 32 */ 33 34 #ifndef _LIBNETBSD_SYS_TIME_H_ 35 #define _LIBNETBSD_SYS_TIME_H_ 36 37 #include_next <sys/time.h> 38 39 /* Operations on timespecs. */ 40 #define timespecclear(tsp) (tsp)->tv_sec = (time_t)((tsp)->tv_nsec = 0L) 41 #define timespecisset(tsp) ((tsp)->tv_sec || (tsp)->tv_nsec) 42 #define timespeccmp(tsp, usp, cmp) \ 43 (((tsp)->tv_sec == (usp)->tv_sec) ? \ 44 ((tsp)->tv_nsec cmp (usp)->tv_nsec) : \ 45 ((tsp)->tv_sec cmp (usp)->tv_sec)) 46 #define timespecadd(tsp, usp, vsp) \ 47 do { \ 48 (vsp)->tv_sec = (tsp)->tv_sec + (usp)->tv_sec; \ 49 (vsp)->tv_nsec = (tsp)->tv_nsec + (usp)->tv_nsec; \ 50 if ((vsp)->tv_nsec >= 1000000000L) { \ 51 (vsp)->tv_sec++; \ 52 (vsp)->tv_nsec -= 1000000000L; \ 53 } \ 54 } while (/* CONSTCOND */ 0) 55 #define timespecsub(tsp, usp, vsp) \ 56 do { \ 57 (vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec; \ 58 (vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec; \ 59 if ((vsp)->tv_nsec < 0) { \ 60 (vsp)->tv_sec--; \ 61 (vsp)->tv_nsec += 1000000000L; \ 62 } \ 63 } while (/* CONSTCOND */ 0) 64 65 #endif 66