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 | */ |
58 | /* |
59 | * File: mach/error.h |
60 | * Purpose: |
61 | * error module definitions |
62 | * |
63 | */ |
64 | |
65 | #ifndef _MACH_ERROR_H_ |
66 | #define _MACH_ERROR_H_ |
67 | |
68 | #include <mach/kern_return.h> |
69 | |
70 | /* |
71 | * error number layout as follows: |
72 | * |
73 | * hi lo |
74 | * | system(6) | subsystem(12) | code(14) | |
75 | */ |
76 | |
77 | |
78 | #define err_none (mach_error_t)0 |
79 | #define ERR_SUCCESS (mach_error_t)0 |
80 | #define ERR_ROUTINE_NIL (mach_error_fn_t)0 |
81 | |
82 | |
83 | #define err_system(x) ((signed)((((unsigned)(x))&0x3f)<<26)) |
84 | #define err_sub(x) (((x)&0xfff)<<14) |
85 | |
86 | #define err_get_system(err) (((err)>>26)&0x3f) |
87 | #define err_get_sub(err) (((err)>>14)&0xfff) |
88 | #define err_get_code(err) ((err)&0x3fff) |
89 | |
90 | #define system_emask (err_system(0x3f)) |
91 | #define sub_emask (err_sub(0xfff)) |
92 | #define code_emask (0x3fff) |
93 | |
94 | |
95 | /* major error systems */ |
96 | #define err_kern err_system(0x0) /* kernel */ |
97 | #define err_us err_system(0x1) /* user space library */ |
98 | #define err_server err_system(0x2) /* user space servers */ |
99 | #define err_ipc err_system(0x3) /* old ipc errors */ |
100 | #define err_mach_ipc err_system(0x4) /* mach-ipc errors */ |
101 | #define err_dipc err_system(0x7) /* distributed ipc */ |
102 | #define err_local err_system(0x3e) /* user defined errors */ |
103 | #define err_ipc_compat err_system(0x3f) /* (compatibility) mach-ipc errors */ |
104 | |
105 | #define err_max_system 0x3f |
106 | |
107 | |
108 | /* unix errors get lumped into one subsystem */ |
109 | #define unix_err(errno) (err_kern|err_sub(3)|errno) |
110 | |
111 | typedef kern_return_t mach_error_t; |
112 | typedef mach_error_t (* mach_error_fn_t)( void ); |
113 | |
114 | #endif /* _MACH_ERROR_H_ */ |
115 | |