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 #pragma ident "%Z%%M% %I% %E% SMI" 38 39 /* 40 * The following is an excerpt from <sys/hrtcntl.h>. HRT timers are not 41 * supported by SunOS (which will support the POSIX definition). Dispadmin 42 * uses the hrt routine _hrtnewres because it coincidentally does the 43 * right thing. These defines allow this routine to be locally included 44 * in dispadmin (rather than exported in libc). This should be improved in 45 * the long term. 46 */ 47 48 /* 49 * Definitions for specifying rounding mode. 50 */ 51 52 #define HRT_TRUNC 0 /* Round results down. */ 53 #define HRT_RND 1 /* Round results (rnd up if fractional */ 54 /* part >= .5 otherwise round down). */ 55 #define HRT_RNDUP 2 /* Always round results up. */ 56 57 /* 58 * Structure used to represent a high-resolution time-of-day 59 * or interval. 60 */ 61 62 typedef struct hrtimer { 63 ulong_t hrt_secs; /* Seconds. */ 64 long hrt_rem; /* A value less than a second. */ 65 ulong_t hrt_res; /* The resolution of hrt_rem. */ 66 } hrtimer_t; 67 68 /* 69 * Functions in subr.c 70 */ 71 extern void fatalerr(const char *, ...); 72 extern long hrtconvert(hrtimer_t *); 73 extern int _hrtnewres(hrtimer_t *, ulong_t, long); 74