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| Commit | Line | Data |
|---|---|---|
| b7487ec5 SK |
1 | /* $OpenBSD: time.h,v 1.36 2016/09/12 19:41:20 guenther Exp $ */ |
| 2 | /* $NetBSD: time.h,v 1.18 1996/04/23 10:29:33 mycroft Exp $ */ | |
| 3 | ||
| 4 | /* | |
| 5 | * Copyright (c) 1982, 1986, 1993 | |
| 6 | * The Regents of the University of California. All rights reserved. | |
| 7 | * | |
| 8 | * Redistribution and use in source and binary forms, with or without | |
| 9 | * modification, are permitted provided that the following conditions | |
| 10 | * are met: | |
| 11 | * 1. Redistributions of source code must retain the above copyright | |
| 12 | * notice, this list of conditions and the following disclaimer. | |
| 13 | * 2. Redistributions in binary form must reproduce the above copyright | |
| 14 | * notice, this list of conditions and the following disclaimer in the | |
| 15 | * documentation and/or other materials provided with the distribution. | |
| 16 | * 3. Neither the name of the University nor the names of its contributors | |
| 17 | * may be used to endorse or promote products derived from this software | |
| 18 | * without specific prior written permission. | |
| 19 | * | |
| 20 | * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND | |
| 21 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 22 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE | |
| 23 | * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE | |
| 24 | * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL | |
| 25 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS | |
| 26 | * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | |
| 27 | * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT | |
| 28 | * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY | |
| 29 | * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF | |
| 30 | * SUCH DAMAGE. | |
| 31 | * | |
| 32 | * @(#)time.h 8.2 (Berkeley) 7/10/94 | |
| 33 | */ | |
| 34 | ||
| 35 | /* Operations on timespecs. */ | |
| 36 | #ifndef timespecclear | |
| 37 | #define timespecclear(tsp) (tsp)->tv_sec = (tsp)->tv_nsec = 0 | |
| 38 | #endif | |
| 39 | ||
| 40 | #ifndef timespecisset | |
| 41 | #define timespecisset(tsp) ((tsp)->tv_sec || (tsp)->tv_nsec) | |
| 42 | #endif | |
| 43 | ||
| 44 | #ifndef timespeccmp | |
| 45 | #define timespeccmp(tsp, usp, cmp) \ | |
| 46 | (((tsp)->tv_sec == (usp)->tv_sec) ? \ | |
| 47 | ((tsp)->tv_nsec cmp (usp)->tv_nsec) : \ | |
| 48 | ((tsp)->tv_sec cmp (usp)->tv_sec)) | |
| 49 | #endif | |
| 50 | ||
| 51 | #ifndef timespecadd | |
| 52 | #define timespecadd(tsp, usp, vsp) \ | |
| 53 | do { \ | |
| 54 | (vsp)->tv_sec = (tsp)->tv_sec + (usp)->tv_sec; \ | |
| 55 | (vsp)->tv_nsec = (tsp)->tv_nsec + (usp)->tv_nsec; \ | |
| 56 | if ((vsp)->tv_nsec >= 1000000000L) { \ | |
| 57 | (vsp)->tv_sec++; \ | |
| 58 | (vsp)->tv_nsec -= 1000000000L; \ | |
| 59 | } \ | |
| 60 | } while (0) | |
| 61 | #endif | |
| 62 | ||
| 63 | #ifndef timespecsub | |
| 64 | #define timespecsub(tsp, usp, vsp) \ | |
| 65 | do { \ | |
| 66 | (vsp)->tv_sec = (tsp)->tv_sec - (usp)->tv_sec; \ | |
| 67 | (vsp)->tv_nsec = (tsp)->tv_nsec - (usp)->tv_nsec; \ | |
| 68 | if ((vsp)->tv_nsec < 0) { \ | |
| 69 | (vsp)->tv_sec--; \ | |
| 70 | (vsp)->tv_nsec += 1000000000L; \ | |
| 71 | } \ | |
| 72 | } while (0) | |
| 73 | #endif |