1/*
2 * Copyright (c) 1999-2006 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#ifndef _OS_OSLIB_H
29#define _OS_OSLIB_H
30
31#include <libkern/OSBase.h>
32
33#ifdef KERNEL
34#define MACH_ASSERT 1
35#endif
36
37__BEGIN_DECLS
38
39#include <stdarg.h>
40#include <sys/systm.h>
41
42#include <kern/assert.h>
43#ifdef KERNEL_PRIVATE
44#include <kern/kalloc.h>
45#endif
46
47__END_DECLS
48
49
50#if XNU_KERNEL_PRIVATE
51#include <libkern/OSAtomic.h>
52#include <libkern/c++/OSCPPDebug.h>
53
54#define kallocp_type_container(ty, countp, flags) ({ \
55 uint32_t *__countp = (countp); \
56 struct kalloc_result __kar; \
57 static KALLOC_TYPE_VAR_DEFINE_3(kt_view_var, ty, KT_SHARED_ACCT); \
58 __kar = kalloc_ext(kt_mangle_var_view(kt_view_var), \
59 kt_size(0, sizeof(ty), *__countp), \
60 Z_VM_TAG_BT(flags | Z_FULLSIZE | Z_SPRAYQTN | Z_SET_NOTSHARED, \
61 VM_KERN_MEMORY_LIBKERN), NULL); \
62 *__countp = (uint32_t)MIN(__kar.size / sizeof(ty), UINT32_MAX); \
63 (ty *)__kar.addr; \
64})
65
66#define kreallocp_type_container(ty, ptr, old_count, countp, flags) ({ \
67 uint32_t *__countp = (countp); \
68 struct kalloc_result __kar; \
69 static KALLOC_TYPE_VAR_DEFINE_3(kt_view_var, ty, KT_SHARED_ACCT); \
70 __kar = krealloc_ext(kt_mangle_var_view(kt_view_var), ptr, \
71 kt_size(0, sizeof(ty), old_count), \
72 kt_size(0, sizeof(ty), *__countp), \
73 Z_VM_TAG_BT(flags | Z_FULLSIZE | Z_SPRAYQTN | Z_SET_NOTSHARED, \
74 VM_KERN_MEMORY_LIBKERN), NULL); \
75 *__countp = (uint32_t)MIN(__kar.size / sizeof(ty), UINT32_MAX); \
76 (ty *)__kar.addr; \
77})
78
79#if OSALLOCDEBUG
80
81#if IOTRACKING
82#define OSCONTAINER_ACCUMSIZE(s) do { OSAddAtomicLong((s), &debug_container_malloc_size); trackingAccumSize(s); } while(0)
83#else
84#define OSCONTAINER_ACCUMSIZE(s) do { OSAddAtomicLong((s), &debug_container_malloc_size); } while(0)
85#endif
86#define OSMETA_ACCUMSIZE(s) do { OSAddAtomicLong((s), &debug_container_malloc_size); } while(0)
87#define OSIVAR_ACCUMSIZE(s) do { OSAddAtomicLong((s), &debug_ivars_size); } while(0)
88
89#else /* OSALLOCDEBUG */
90
91#define OSCONTAINER_ACCUMSIZE(s)
92#define OSMETA_ACCUMSIZE(s)
93#define OSIVAR_ACCUMSIZE(s)
94
95#endif /* !OSALLOCDEBUG */
96#endif /* XNU_KERNEL_PRIVATE */
97
98#ifndef NULL
99#if defined (__cplusplus)
100#if __cplusplus >= 201103L
101#define NULL nullptr
102#else
103#define NULL 0
104#endif
105#else
106#define NULL ((void *)0)
107#endif
108#endif
109
110#endif /* _OS_OSLIB_H */
111