1 | /* |
2 | * Copyright (c) 2000-2020 Apple 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 | #ifndef _KERN_TASK_REF_H_ |
30 | #define _KERN_TASK_REF_H_ |
31 | |
32 | #include <mach/mach_types.h> |
33 | |
34 | #include <stdint.h> |
35 | |
36 | #if MACH_KERNEL_PRIVATE |
37 | |
38 | |
39 | extern void task_ref_init(void); |
40 | |
41 | extern void task_ref_count_fini(task_t); |
42 | extern kern_return_t task_ref_count_init(task_t); |
43 | |
44 | extern void task_reference_external(task_t task); |
45 | extern void task_deallocate_external(task_t task); |
46 | |
47 | #endif /* MACH_KERNEL_PRIVATE */ |
48 | |
49 | #if XNU_KERNEL_PRIVATE |
50 | |
51 | #include <os/refcnt.h> |
52 | |
53 | __BEGIN_DECLS |
54 | |
55 | extern struct os_refgrp task_external_refgrp; |
56 | |
57 | __options_closed_decl(task_grp_t, uint32_t, { |
58 | TASK_GRP_KERNEL, |
59 | TASK_GRP_INTERNAL, |
60 | TASK_GRP_MIG, |
61 | TASK_GRP_EXTERNAL, |
62 | |
63 | TASK_GRP_COUNT, |
64 | }); |
65 | |
66 | extern void task_reference_grp(task_t, task_grp_t); |
67 | extern void task_deallocate_grp(task_t, task_grp_t); |
68 | |
69 | #define task_reference_mig(task) task_reference_grp(task, TASK_GRP_MIG) |
70 | #define task_deallocate_mig(task) task_deallocate_grp(task, TASK_GRP_MIG) |
71 | |
72 | /* |
73 | * Exported symbols get mapped to their _external versions. Internal consumers of |
74 | * these functions need to pick up the _kernel version. |
75 | */ |
76 | |
77 | #define task_reference(task) task_reference_grp(task, TASK_GRP_KERNEL) |
78 | #define task_deallocate(task) task_deallocate_grp(task, TASK_GRP_KERNEL) |
79 | |
80 | #define convert_task_to_port(task) convert_task_to_port_kernel(task) |
81 | #define convert_task_read_to_port(task) convert_task_read_to_port_kernel(task) |
82 | |
83 | #define port_name_to_task(name) port_name_to_task_kernel(name) |
84 | |
85 | #define convert_port_to_task_suspension_token(port) convert_port_to_task_suspension_token_kernel(port) |
86 | #define convert_task_suspension_token_to_port(token) convert_task_suspension_token_to_port_kernel(token) |
87 | |
88 | #define task_resume2(token) task_resume2_kernel(token) |
89 | #define task_suspend2(task, token) task_suspend2_kernel(task, token) |
90 | |
91 | __END_DECLS |
92 | |
93 | #else /* XNU_KERNEL_PRIVATE */ |
94 | |
95 | __BEGIN_DECLS |
96 | |
97 | extern void task_reference(task_t); |
98 | extern void task_deallocate(task_t); |
99 | |
100 | __END_DECLS |
101 | #endif /* XNU_KERNEL_PRIVATE */ |
102 | |
103 | #endif /*_KERN_TASK_REF_H_ */ |
104 | |