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 * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
30 *
31 * HISTORY
32 *
33 */
34
35#ifndef _OS_OSBASE_H
36#define _OS_OSBASE_H
37
38#include <sys/cdefs.h>
39
40#include <libkern/OSTypes.h>
41
42#include <stdint.h>
43
44__BEGIN_DECLS
45
46#ifdef KERNEL_PRIVATE
47
48OS_INLINE
49uint64_t
50__OSAbsoluteTime(
51 AbsoluteTime abstime)
52{
53 return *(uint64_t *)&abstime;
54}
55
56OS_INLINE
57uint64_t *
58__OSAbsoluteTimePtr(
59 AbsoluteTime *abstime)
60{
61 return (uint64_t *)abstime;
62}
63
64#define AbsoluteTime_to_scalar(x) (*(uint64_t *)(x))
65
66/* t1 < = > t2 */
67#define CMP_ABSOLUTETIME(t1, t2) \
68 (AbsoluteTime_to_scalar(t1) > \
69 AbsoluteTime_to_scalar(t2)? (int)+1 : \
70 (AbsoluteTime_to_scalar(t1) < \
71 AbsoluteTime_to_scalar(t2)? (int)-1 : 0))
72
73/* t1 += t2 */
74#define ADD_ABSOLUTETIME(t1, t2) \
75 (AbsoluteTime_to_scalar(t1) += \
76 AbsoluteTime_to_scalar(t2))
77
78/* t1 -= t2 */
79#define SUB_ABSOLUTETIME(t1, t2) \
80 (AbsoluteTime_to_scalar(t1) -= \
81 AbsoluteTime_to_scalar(t2))
82
83#define ADD_ABSOLUTETIME_TICKS(t1, ticks) \
84 (AbsoluteTime_to_scalar(t1) += \
85 (int32_t)(ticks))
86
87#endif /* KERNEL_PRIVATE */
88
89__END_DECLS
90
91#endif /* _OS_OSBASE_H */
92