/* * Copyright (c) 2000 Apple Computer, Inc. All rights reserved. * * @APPLE_LICENSE_HEADER_START@ * * The contents of this file constitute Original Code as defined in and * are subject to the Apple Public Source License Version 1.1 (the * "License"). You may not use this file except in compliance with the * License. Please obtain a copy of the License at * http://www.apple.com/publicsource and read it before using this file. * * This Original Code and all software distributed under the License are * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the * License for the specific language governing rights and limitations * under the License. * * @APPLE_LICENSE_HEADER_END@ */ /* * @OSF_COPYRIGHT@ */ /* * HISTORY * * Revision 1.1.1.1 1998/09/22 21:05:31 wsanchez * Import of Mac OS X kernel (~semeria) * * Revision 1.1.1.1 1998/03/07 02:25:46 wsanchez * Import of OSF Mach kernel (~mburg) * * Revision 1.2.11.2 1995/01/06 19:52:17 devrcs * mk6 CR668 - 1.3b26 merge * 64bit cleanup * [1994/10/14 03:43:25 dwm] * * Revision 1.2.11.1 1994/09/23 02:43:49 ezf * change marker to not FREE * [1994/09/22 21:43:27 ezf] * * Revision 1.2.3.2 1993/06/09 02:44:03 gm * Added to OSF/1 R1.3 from NMK15.0. * [1993/06/02 21:18:38 jeffc] * * Revision 1.2 1993/04/19 16:40:14 devrcs * ansi C conformance changes * [1993/02/02 18:55:30 david] * * Revision 1.1 1992/09/30 02:32:21 robert * Initial revision * * $EndLog$ */ /* CMU_HIST */ /* * Revision 2.4 91/05/18 14:35:13 rpd * Added mapped_time_value_t. * [91/03/21 rpd] * * Revision 2.3 91/05/14 17:01:40 mrt * Correcting copyright * * Revision 2.2 91/02/05 17:36:49 mrt * Changed to new Mach copyright * [91/02/01 17:22:07 mrt] * * Revision 2.1 89/08/03 16:06:24 rwd * Created. * * Revision 2.4 89/02/25 18:41:34 gm0w * Changes for cleanup. * * Revision 2.3 89/02/07 00:53:58 mwyoung * Relocated from sys/time_value.h * * Revision 2.2 89/01/31 01:21:58 rpd * TIME_MICROS_MAX should be 1 Million, not 10 Million. * [88/10/12 dlb] * * 4-Jan-88 David Golub (dbg) at Carnegie-Mellon University * Created. * */ /* CMU_ENDHIST */ /* * Mach Operating System * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University * All Rights Reserved. * * Permission to use, copy, modify and distribute this software and its * documentation is hereby granted, provided that both the copyright * notice and this permission notice appear in all copies of the * software, derivative works or modified versions, and any portions * thereof, and that both notices appear in supporting documentation. * * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS" * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE. * * Carnegie Mellon requests users of this software to return to * * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU * School of Computer Science * Carnegie Mellon University * Pittsburgh PA 15213-3890 * * any improvements or extensions that they make and grant Carnegie Mellon * the rights to redistribute these changes. */ /* */ #ifndef TIME_VALUE_H_ #define TIME_VALUE_H_ #include <mach/machine/vm_types.h> /* * Time value returned by kernel. */ struct time_value { integer_t seconds; integer_t microseconds; }; typedef struct time_value time_value_t; /* * Macros to manipulate time values. Assume that time values * are normalized (microseconds <= 999999). */ #define TIME_MICROS_MAX (1000000) #define time_value_add_usec(val, micros) { \ if (((val)->microseconds += (micros)) \ >= TIME_MICROS_MAX) { \ (val)->microseconds -= TIME_MICROS_MAX; \ (val)->seconds++; \ } \ } #define time_value_add(result, addend) { \ (result)->microseconds += (addend)->microseconds; \ (result)->seconds += (addend)->seconds; \ if ((result)->microseconds >= TIME_MICROS_MAX) { \ (result)->microseconds -= TIME_MICROS_MAX; \ (result)->seconds++; \ } \ } /* * Time value available through the mapped-time interface. * Read this mapped value with * do { * secs = mtime->seconds; * usecs = mtime->microseconds; * } while (secs != mtime->check_seconds); */ typedef struct mapped_time_value { integer_t seconds; integer_t microseconds; integer_t check_seconds; } mapped_time_value_t; #endif /* TIME_VALUE_H_ */