1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
/**
* Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of https://github.com/facebook/zstd.
* An additional grant of patent rights can be found in the PATENTS file in the
* same directory.
*
* This program is free software; you can redistribute it and/or modify it under
* the terms of the GNU General Public License version 2 as published by the
* Free Software Foundation. This program is dual-licensed; you may select
* either version 2 of the GNU General Public License ("GPL") or BSD license
* ("BSD").
*/
/* Note : this module is expected to remain private, do not expose it */
#ifndef ERROR_H_MODULE
#define ERROR_H_MODULE
/**
* enum ZSTD_ErrorCode - zstd error codes
*
* Functions that return size_t can be checked for errors using ZSTD_isError()
* and the ZSTD_ErrorCode can be extracted using ZSTD_getErrorCode().
*/
typedef enum {
ZSTD_error_no_error,
ZSTD_error_GENERIC,
ZSTD_error_prefix_unknown,
ZSTD_error_version_unsupported,
ZSTD_error_parameter_unknown,
ZSTD_error_frameParameter_unsupported,
ZSTD_error_frameParameter_unsupportedBy32bits,
ZSTD_error_frameParameter_windowTooLarge,
ZSTD_error_compressionParameter_unsupported,
ZSTD_error_init_missing,
ZSTD_error_memory_allocation,
ZSTD_error_stage_wrong,
ZSTD_error_dstSize_tooSmall,
ZSTD_error_srcSize_wrong,
ZSTD_error_corruption_detected,
ZSTD_error_checksum_wrong,
ZSTD_error_tableLog_tooLarge,
ZSTD_error_maxSymbolValue_tooLarge,
ZSTD_error_maxSymbolValue_tooSmall,
ZSTD_error_dictionary_corrupted,
ZSTD_error_dictionary_wrong,
ZSTD_error_dictionaryCreation_failed,
ZSTD_error_maxCode
} ZSTD_ErrorCode;
/* ****************************************
* Compiler-specific
******************************************/
#define ERR_STATIC static __attribute__((unused))
/*-****************************************
* Customization (error_public.h)
******************************************/
typedef ZSTD_ErrorCode ERR_enum;
#define PREFIX(name) ZSTD_error_##name
/*-****************************************
* Error codes handling
******************************************/
#define ERROR(name) ((size_t)-PREFIX(name))
ERR_STATIC unsigned __init ERR_isError(size_t code) { return (code > ERROR(maxCode)); }
ERR_STATIC ERR_enum __init ERR_getErrorCode(size_t code)
{
if (!ERR_isError(code))
return (ERR_enum)0;
return (ERR_enum)(0 - code);
}
/**
* ZSTD_isError() - tells if a size_t function result is an error code
* @code: The function result to check for error.
*
* Return: Non-zero iff the code is an error.
*/
static __attribute__((unused)) unsigned int __init ZSTD_isError(size_t code)
{
return code > (size_t)-ZSTD_error_maxCode;
}
/**
* ZSTD_getErrorCode() - translates an error function result to a ZSTD_ErrorCode
* @functionResult: The result of a function for which ZSTD_isError() is true.
*
* Return: The ZSTD_ErrorCode corresponding to the functionResult or 0
* if the functionResult isn't an error.
*/
static __attribute__((unused)) ZSTD_ErrorCode __init ZSTD_getErrorCode(
size_t functionResult)
{
if (!ZSTD_isError(functionResult))
return (ZSTD_ErrorCode)0;
return (ZSTD_ErrorCode)(0 - functionResult);
}
#endif /* ERROR_H_MODULE */
|
