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73f3d1b4 NT |
1 | /** |
2 | * Copyright (c) 2016-present, Yann Collet, Facebook, Inc. | |
3 | * All rights reserved. | |
4 | * | |
5 | * This source code is licensed under the BSD-style license found in the | |
6 | * LICENSE file in the root directory of https://github.com/facebook/zstd. | |
7 | * An additional grant of patent rights can be found in the PATENTS file in the | |
8 | * same directory. | |
9 | * | |
10 | * This program is free software; you can redistribute it and/or modify it under | |
11 | * the terms of the GNU General Public License version 2 as published by the | |
12 | * Free Software Foundation. This program is dual-licensed; you may select | |
13 | * either version 2 of the GNU General Public License ("GPL") or BSD license | |
14 | * ("BSD"). | |
15 | */ | |
16 | ||
17 | /* Note : this module is expected to remain private, do not expose it */ | |
18 | ||
19 | #ifndef ERROR_H_MODULE | |
20 | #define ERROR_H_MODULE | |
21 | ||
22 | /* **************************************** | |
23 | * Dependencies | |
24 | ******************************************/ | |
25 | #include <linux/types.h> /* size_t */ | |
26 | #include <linux/zstd.h> /* enum list */ | |
27 | ||
28 | /* **************************************** | |
29 | * Compiler-specific | |
30 | ******************************************/ | |
31 | #define ERR_STATIC static __attribute__((unused)) | |
32 | ||
33 | /*-**************************************** | |
34 | * Customization (error_public.h) | |
35 | ******************************************/ | |
36 | typedef ZSTD_ErrorCode ERR_enum; | |
37 | #define PREFIX(name) ZSTD_error_##name | |
38 | ||
39 | /*-**************************************** | |
40 | * Error codes handling | |
41 | ******************************************/ | |
42 | #define ERROR(name) ((size_t)-PREFIX(name)) | |
43 | ||
44 | ERR_STATIC unsigned ERR_isError(size_t code) { return (code > ERROR(maxCode)); } | |
45 | ||
46 | ERR_STATIC ERR_enum ERR_getErrorCode(size_t code) | |
47 | { | |
48 | if (!ERR_isError(code)) | |
49 | return (ERR_enum)0; | |
50 | return (ERR_enum)(0 - code); | |
51 | } | |
52 | ||
53 | #endif /* ERROR_H_MODULE */ |