1/* 2 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28/* 29 * @OSF_COPYRIGHT@ 30 */ 31/* 32 * HISTORY 33 * 34 * Revision 1.1.1.1 1998/09/22 21:05:48 wsanchez 35 * Import of Mac OS X kernel (~semeria) 36 * 37 * Revision 1.1.1.1 1998/03/07 02:25:59 wsanchez 38 * Import of OSF Mach kernel (~mburg) 39 * 40 * Revision 1.2.6.1 1994/09/23 03:13:17 ezf 41 * change marker to not FREE 42 * [1994/09/22 21:58:56 ezf] 43 * 44 * Revision 1.2.2.2 1993/06/09 02:55:33 gm 45 * Added to OSF/1 R1.3 from NMK15.0. 46 * [1993/06/02 21:31:02 jeffc] 47 * 48 * Revision 1.2 1993/04/19 17:17:07 devrcs 49 * Fixes for ANSI C 50 * [1993/02/26 14:02:46 sp] 51 * 52 * Revision 1.1 1992/09/30 02:36:58 robert 53 * Initial revision 54 * 55 * $EndLog$ 56 */ 57/* CMU_HIST */ 58/* 59 * Revision 2.3 91/05/14 17:40:25 mrt 60 * Correcting copyright 61 * 62 * Revision 2.2 91/02/05 17:56:58 mrt 63 * Changed to new Mach copyright 64 * [91/02/01 17:49:29 mrt] 65 * 66 */ 67/* CMU_ENDHIST */ 68/* 69 * Mach Operating System 70 * Copyright (c) 1991 Carnegie Mellon University 71 * All Rights Reserved. 72 * 73 * Permission to use, copy, modify and distribute this software and its 74 * documentation is hereby granted, provided that both the copyright 75 * notice and this permission notice appear in all copies of the 76 * software, derivative works or modified versions, and any portions 77 * thereof, and that both notices appear in supporting documentation. 78 * 79 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" 80 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR 81 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. 82 * 83 * Carnegie Mellon requests users of this software to return to 84 * 85 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU 86 * School of Computer Science 87 * Carnegie Mellon University 88 * Pittsburgh PA 15213-3890 89 * 90 * any improvements or extensions that they make and grant Carnegie Mellon rights 91 * to redistribute these changes. 92 */ 93/* 94 */ 95/* 96 * Time-keeper for kernel IO devices. 97 * 98 * May or may not have any relation to wall-clock time. 99 */ 100 101#ifndef _SYS_TIME_H_ 102#define _SYS_TIME_H_ 103#include <mach/time_value.h> 104 105extern time_value_t time; 106 107/* 108 * Definitions to keep old code happy. 109 */ 110#define timeval_t time_value_t 111#define timeval time_value 112#define tv_sec seconds 113#define tv_usec microseconds 114 115#define timerisset(tvp) ((tvp)->tv_sec || (tvp)->tv_usec) 116#define timercmp(tvp, uvp, cmp) \ 117 ((tvp)->tv_sec cmp (uvp)->tv_sec || \ 118 (tvp)->tv_sec == (uvp)->tv_sec && (tvp)->tv_usec cmp (uvp)->tv_usec) 119#define timerclear(tvp) (tvp)->tv_sec = (tvp)->tv_usec = 0 120#endif /* _SYS_TIME_H_ */ 121