| Scott Baker | eee8dd8 | 2019-09-24 12:52:34 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright (c) 2016-present, Yann Collet, Facebook, Inc. |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * This source code is licensed under both the BSD-style license (found in the |
| 6 | * LICENSE file in the root directory of this source tree) and the GPLv2 (found |
| 7 | * in the COPYING file in the root directory of this source tree). |
| 8 | * You may select, at your option, one of the above-listed licenses. |
| 9 | */ |
| 10 | |
| 11 | #ifndef ZSTD_ERRORS_H_398273423 |
| 12 | #define ZSTD_ERRORS_H_398273423 |
| 13 | |
| 14 | #if defined (__cplusplus) |
| 15 | extern "C" { |
| 16 | #endif |
| 17 | |
| 18 | /*===== dependency =====*/ |
| 19 | #include <stddef.h> /* size_t */ |
| 20 | |
| 21 | |
| 22 | /* ===== ZSTDERRORLIB_API : control library symbols visibility ===== */ |
| 23 | #ifndef ZSTDERRORLIB_VISIBILITY |
| 24 | # if defined(__GNUC__) && (__GNUC__ >= 4) |
| 25 | # define ZSTDERRORLIB_VISIBILITY __attribute__ ((visibility ("default"))) |
| 26 | # else |
| 27 | # define ZSTDERRORLIB_VISIBILITY |
| 28 | # endif |
| 29 | #endif |
| 30 | #if defined(ZSTD_DLL_EXPORT) && (ZSTD_DLL_EXPORT==1) |
| 31 | # define ZSTDERRORLIB_API __declspec(dllexport) ZSTDERRORLIB_VISIBILITY |
| 32 | #elif defined(ZSTD_DLL_IMPORT) && (ZSTD_DLL_IMPORT==1) |
| 33 | # define ZSTDERRORLIB_API __declspec(dllimport) ZSTDERRORLIB_VISIBILITY /* It isn't required but allows to generate better code, saving a function pointer load from the IAT and an indirect jump.*/ |
| 34 | #else |
| 35 | # define ZSTDERRORLIB_API ZSTDERRORLIB_VISIBILITY |
| 36 | #endif |
| 37 | |
| 38 | /*-********************************************* |
| 39 | * Error codes list |
| 40 | *-********************************************* |
| 41 | * Error codes _values_ are pinned down since v1.3.1 only. |
| 42 | * Therefore, don't rely on values if you may link to any version < v1.3.1. |
| 43 | * |
| 44 | * Only values < 100 are considered stable. |
| 45 | * |
| 46 | * note 1 : this API shall be used with static linking only. |
| 47 | * dynamic linking is not yet officially supported. |
| 48 | * note 2 : Prefer relying on the enum than on its value whenever possible |
| 49 | * This is the only supported way to use the error list < v1.3.1 |
| 50 | * note 3 : ZSTD_isError() is always correct, whatever the library version. |
| 51 | **********************************************/ |
| 52 | typedef enum { |
| 53 | ZSTD_error_no_error = 0, |
| 54 | ZSTD_error_GENERIC = 1, |
| 55 | ZSTD_error_prefix_unknown = 10, |
| 56 | ZSTD_error_version_unsupported = 12, |
| 57 | ZSTD_error_frameParameter_unsupported = 14, |
| 58 | ZSTD_error_frameParameter_windowTooLarge = 16, |
| 59 | ZSTD_error_corruption_detected = 20, |
| 60 | ZSTD_error_checksum_wrong = 22, |
| 61 | ZSTD_error_dictionary_corrupted = 30, |
| 62 | ZSTD_error_dictionary_wrong = 32, |
| 63 | ZSTD_error_dictionaryCreation_failed = 34, |
| 64 | ZSTD_error_parameter_unsupported = 40, |
| 65 | ZSTD_error_parameter_outOfBound = 42, |
| 66 | ZSTD_error_tableLog_tooLarge = 44, |
| 67 | ZSTD_error_maxSymbolValue_tooLarge = 46, |
| 68 | ZSTD_error_maxSymbolValue_tooSmall = 48, |
| 69 | ZSTD_error_stage_wrong = 60, |
| 70 | ZSTD_error_init_missing = 62, |
| 71 | ZSTD_error_memory_allocation = 64, |
| 72 | ZSTD_error_workSpace_tooSmall= 66, |
| 73 | ZSTD_error_dstSize_tooSmall = 70, |
| 74 | ZSTD_error_srcSize_wrong = 72, |
| 75 | /* following error codes are __NOT STABLE__, they can be removed or changed in future versions */ |
| 76 | ZSTD_error_frameIndex_tooLarge = 100, |
| 77 | ZSTD_error_seekableIO = 102, |
| 78 | ZSTD_error_maxCode = 120 /* never EVER use this value directly, it can change in future versions! Use ZSTD_isError() instead */ |
| 79 | } ZSTD_ErrorCode; |
| 80 | |
| 81 | /*! ZSTD_getErrorCode() : |
| 82 | convert a `size_t` function result into a `ZSTD_ErrorCode` enum type, |
| 83 | which can be used to compare with enum list published above */ |
| 84 | ZSTDERRORLIB_API ZSTD_ErrorCode ZSTD_getErrorCode(size_t functionResult); |
| 85 | ZSTDERRORLIB_API const char* ZSTD_getErrorString(ZSTD_ErrorCode code); /**< Same as ZSTD_getErrorName, but using a `ZSTD_ErrorCode` enum argument */ |
| 86 | |
| 87 | |
| 88 | #if defined (__cplusplus) |
| 89 | } |
| 90 | #endif |
| 91 | |
| 92 | #endif /* ZSTD_ERRORS_H_398273423 */ |