[8ebc79b] | 1 | /* ****************************************************************** |
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| 2 | Error codes and messages |
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| 3 | Copyright (C) 2013-2016, Yann Collet |
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| 4 | |
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| 5 | BSD 2-Clause License (http://www.opensource.org/licenses/bsd-license.php) |
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| 6 | |
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| 7 | Redistribution and use in source and binary forms, with or without |
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| 8 | modification, are permitted provided that the following conditions are |
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| 9 | met: |
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| 10 | |
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| 11 | * Redistributions of source code must retain the above copyright |
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| 12 | notice, this list of conditions and the following disclaimer. |
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| 13 | * Redistributions in binary form must reproduce the above |
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| 14 | copyright notice, this list of conditions and the following disclaimer |
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| 15 | in the documentation and/or other materials provided with the |
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| 16 | distribution. |
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| 17 | |
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| 18 | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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| 19 | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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| 20 | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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| 21 | A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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| 22 | OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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| 23 | SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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| 24 | LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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| 25 | DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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| 26 | THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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| 27 | (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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| 28 | OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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| 29 | |
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| 30 | You can contact the author at : |
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| 31 | - Homepage : http://www.zstd.net |
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| 32 | ****************************************************************** */ |
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| 33 | /* Note : this module is expected to remain private, do not expose it */ |
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| 34 | |
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| 35 | #ifndef ERROR_H_MODULE |
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| 36 | #define ERROR_H_MODULE |
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| 37 | |
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| 38 | #if defined (__cplusplus) |
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| 39 | extern "C" { |
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| 40 | #endif |
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| 41 | |
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| 42 | |
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| 43 | /* **************************************** |
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| 44 | * Dependencies |
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| 45 | ******************************************/ |
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| 46 | #include <stddef.h> /* size_t */ |
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| 47 | #include "error_public.h" /* enum list */ |
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| 48 | |
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| 49 | |
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| 50 | /* **************************************** |
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| 51 | * Compiler-specific |
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| 52 | ******************************************/ |
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| 53 | #if defined(__GNUC__) |
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| 54 | # define ERR_STATIC static __attribute__((unused)) |
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| 55 | #elif defined (__cplusplus) || (defined (__STDC_VERSION__) && (__STDC_VERSION__ >= 199901L) /* C99 */) |
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| 56 | # define ERR_STATIC static inline |
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| 57 | #elif defined(_MSC_VER) |
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| 58 | # define ERR_STATIC static __inline |
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| 59 | #else |
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| 60 | # define ERR_STATIC static /* this version may generate warnings for unused static functions; disable the relevant warning */ |
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| 61 | #endif |
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| 62 | |
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| 63 | |
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| 64 | /*-**************************************** |
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| 65 | * Customization (error_public.h) |
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| 66 | ******************************************/ |
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| 67 | typedef ZSTD_ErrorCode ERR_enum; |
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| 68 | #define PREFIX(name) ZSTD_error_##name |
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| 69 | |
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| 70 | |
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| 71 | /*-**************************************** |
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| 72 | * Error codes handling |
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| 73 | ******************************************/ |
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| 74 | #ifdef ERROR |
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| 75 | # undef ERROR /* reported already defined on VS 2015 (Rich Geldreich) */ |
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| 76 | #endif |
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| 77 | #define ERROR(name) ((size_t)-PREFIX(name)) |
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| 78 | |
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| 79 | ERR_STATIC unsigned ERR_isError(size_t code) { return (code > ERROR(maxCode)); } |
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| 80 | |
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| 81 | ERR_STATIC ERR_enum ERR_getErrorCode(size_t code) { if (!ERR_isError(code)) return (ERR_enum)0; return (ERR_enum) (0-code); } |
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| 82 | |
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| 83 | |
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| 84 | /*-**************************************** |
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| 85 | * Error Strings |
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| 86 | ******************************************/ |
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| 87 | |
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| 88 | ERR_STATIC const char* ERR_getErrorString(ERR_enum code) |
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| 89 | { |
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| 90 | static const char* notErrorCode = "Unspecified error code"; |
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| 91 | switch( code ) |
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| 92 | { |
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| 93 | case PREFIX(no_error): return "No error detected"; |
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| 94 | case PREFIX(GENERIC): return "Error (generic)"; |
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| 95 | case PREFIX(prefix_unknown): return "Unknown frame descriptor"; |
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| 96 | case PREFIX(frameParameter_unsupported): return "Unsupported frame parameter"; |
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| 97 | case PREFIX(frameParameter_unsupportedBy32bits): return "Frame parameter unsupported in 32-bits mode"; |
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| 98 | case PREFIX(compressionParameter_unsupported): return "Compression parameter is out of bound"; |
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| 99 | case PREFIX(init_missing): return "Context should be init first"; |
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| 100 | case PREFIX(memory_allocation): return "Allocation error : not enough memory"; |
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| 101 | case PREFIX(stage_wrong): return "Operation not authorized at current processing stage"; |
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| 102 | case PREFIX(dstSize_tooSmall): return "Destination buffer is too small"; |
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| 103 | case PREFIX(srcSize_wrong): return "Src size incorrect"; |
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| 104 | case PREFIX(corruption_detected): return "Corrupted block detected"; |
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| 105 | case PREFIX(checksum_wrong): return "Restored data doesn't match checksum"; |
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| 106 | case PREFIX(tableLog_tooLarge): return "tableLog requires too much memory : unsupported"; |
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| 107 | case PREFIX(maxSymbolValue_tooLarge): return "Unsupported max Symbol Value : too large"; |
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| 108 | case PREFIX(maxSymbolValue_tooSmall): return "Specified maxSymbolValue is too small"; |
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| 109 | case PREFIX(dictionary_corrupted): return "Dictionary is corrupted"; |
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| 110 | case PREFIX(dictionary_wrong): return "Dictionary mismatch"; |
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| 111 | case PREFIX(maxCode): |
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| 112 | default: return notErrorCode; |
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| 113 | } |
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| 114 | } |
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| 115 | |
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| 116 | ERR_STATIC const char* ERR_getErrorName(size_t code) |
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| 117 | { |
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| 118 | return ERR_getErrorString(ERR_getErrorCode(code)); |
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| 119 | } |
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| 120 | |
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| 121 | #if defined (__cplusplus) |
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| 122 | } |
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| 123 | #endif |
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| 124 | |
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| 125 | #endif /* ERROR_H_MODULE */ |
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