1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 23 /* All Rights Reserved */ 24 25 26 /* 27 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 28 * Use is subject to license terms. 29 */ 30 31 /* 32 * Note that this file does not exist in the SVr4 base, but 33 * is largely derived from sys/hrtcntl.h, hence the AT&T 34 * copyright is propagated. SVr4.0 1.9 35 */ 36 37 /* 38 * The following is an excerpt from <sys/hrtcntl.h>. HRT timers are not 39 * supported by SunOS (which will support the POSIX definition). Dispadmin 40 * uses the hrt routine _hrtnewres because it coincidentally does the 41 * right thing. These defines allow this routine to be locally included 42 * in dispadmin (rather than exported in libc). This should be improved in 43 * the long term. 44 */ 45 46 /* 47 * Definitions for specifying rounding mode. 48 */ 49 50 #define HRT_TRUNC 0 /* Round results down. */ 51 #define HRT_RND 1 /* Round results (rnd up if fractional */ 52 /* part >= .5 otherwise round down). */ 53 #define HRT_RNDUP 2 /* Always round results up. */ 54 55 /* 56 * Structure used to represent a high-resolution time-of-day 57 * or interval. 58 */ 59 60 typedef struct hrtimer { 61 ulong_t hrt_secs; /* Seconds. */ 62 long hrt_rem; /* A value less than a second. */ 63 ulong_t hrt_res; /* The resolution of hrt_rem. */ 64 } hrtimer_t; 65 66 /* 67 * Functions in subr.c 68 */ 69 extern void fatalerr(const char *, ...); 70 extern long hrtconvert(hrtimer_t *); 71 extern int _hrtnewres(hrtimer_t *, ulong_t, long); 72