| 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 | * Mach Operating System␊ |
| 33 | * Copyright (c) 1991,1990,1989,1988,1987 Carnegie Mellon University␊ |
| 34 | * All Rights Reserved.␊ |
| 35 | * ␊ |
| 36 | * Permission to use, copy, modify and distribute this software and its␊ |
| 37 | * documentation is hereby granted, provided that both the copyright␊ |
| 38 | * notice and this permission notice appear in all copies of the␊ |
| 39 | * software, derivative works or modified versions, and any portions␊ |
| 40 | * thereof, and that both notices appear in supporting documentation.␊ |
| 41 | * ␊ |
| 42 | * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"␊ |
| 43 | * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR␊ |
| 44 | * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.␊ |
| 45 | * ␊ |
| 46 | * Carnegie Mellon requests users of this software to return to␊ |
| 47 | * ␊ |
| 48 | * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU␊ |
| 49 | * School of Computer Science␊ |
| 50 | * Carnegie Mellon University␊ |
| 51 | * Pittsburgh PA 15213-3890␊ |
| 52 | * ␊ |
| 53 | * any improvements or extensions that they make and grant Carnegie Mellon␊ |
| 54 | * the rights to redistribute these changes.␊ |
| 55 | */␊ |
| 56 | ␊ |
| 57 | #ifndef␉_MACH_TIME_VALUE_H_␊ |
| 58 | #define␉_MACH_TIME_VALUE_H_␊ |
| 59 | ␊ |
| 60 | #include <mach/machine/vm_types.h>␊ |
| 61 | ␊ |
| 62 | /*␊ |
| 63 | *␉Time value returned by kernel.␊ |
| 64 | */␊ |
| 65 | ␊ |
| 66 | struct time_value {␊ |
| 67 | ␉integer_t seconds;␊ |
| 68 | ␉integer_t microseconds;␊ |
| 69 | };␊ |
| 70 | ␊ |
| 71 | typedef␉struct time_value␉time_value_t;␊ |
| 72 | ␊ |
| 73 | /*␊ |
| 74 | *␉Macros to manipulate time values. Assume that time values␊ |
| 75 | *␉are normalized (microseconds <= 999999).␊ |
| 76 | */␊ |
| 77 | #define␉TIME_MICROS_MAX␉(1000000)␊ |
| 78 | ␊ |
| 79 | #define␉time_value_add_usec(val, micros)␉{␉\␊ |
| 80 | ␉if (((val)->microseconds += (micros))␉␉\␊ |
| 81 | ␉␉>= TIME_MICROS_MAX) {␉␉␉\␊ |
| 82 | ␉ (val)->microseconds -= TIME_MICROS_MAX;␉\␊ |
| 83 | ␉ (val)->seconds++;␉␉␉␉\␊ |
| 84 | ␉}␉␉␉␉␉␉\␊ |
| 85 | }␊ |
| 86 | ␊ |
| 87 | #define␉time_value_add(result, addend)␉␉{␉␉\␊ |
| 88 | ␉(result)->microseconds += (addend)->microseconds;␉\␊ |
| 89 | ␉(result)->seconds += (addend)->seconds;␉␉␉\␊ |
| 90 | ␉if ((result)->microseconds >= TIME_MICROS_MAX) {␉\␊ |
| 91 | ␉ (result)->microseconds -= TIME_MICROS_MAX;␉␉\␊ |
| 92 | ␉ (result)->seconds++;␉␉␉␉\␊ |
| 93 | ␉}␉␉␉␉␉␉␉\␊ |
| 94 | }␊ |
| 95 | ␊ |
| 96 | #endif␉/* _MACH_TIME_VALUE_H_ */␊ |
| 97 | |
