/* * 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@ */ /* * 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 <sys/appleapiopts.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; #ifdef __APPLE_API_UNSTABLE /* * 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++; \ } \ } #endif /* __APPLE_API_UNSTABLE */ #ifdef __APPLE_API_OBSOLETE /* * 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 /* __APPLE_API_OBSOLETE */ #endif /* TIME_VALUE_H_ */