| Marek Behún | e87e200 | 2019-04-29 22:40:44 +0200 | [diff] [blame] | 1 | /* SPDX-License-Identifier: (GPL-2.0 or BSD-3-Clause-Clear) */ |
| 2 | /** |
| 3 | * Copyright (c) 2016-present, Yann Collet, Facebook, Inc. |
| 4 | * All rights reserved. |
| 5 | */ |
| 6 | |
| 7 | /* Note : this module is expected to remain private, do not expose it */ |
| 8 | |
| 9 | #ifndef ERROR_H_MODULE |
| 10 | #define ERROR_H_MODULE |
| 11 | |
| 12 | /* **************************************** |
| 13 | * Dependencies |
| 14 | ******************************************/ |
| 15 | #include <linux/types.h> /* size_t */ |
| 16 | #include <linux/zstd.h> /* enum list */ |
| 17 | |
| 18 | /* **************************************** |
| 19 | * Compiler-specific |
| 20 | ******************************************/ |
| 21 | #define ERR_STATIC static __attribute__((unused)) |
| 22 | |
| 23 | /*-**************************************** |
| 24 | * Customization (error_public.h) |
| 25 | ******************************************/ |
| 26 | typedef ZSTD_ErrorCode ERR_enum; |
| 27 | #define PREFIX(name) ZSTD_error_##name |
| 28 | |
| 29 | /*-**************************************** |
| 30 | * Error codes handling |
| 31 | ******************************************/ |
| 32 | #define ERROR(name) ((size_t)-PREFIX(name)) |
| 33 | |
| 34 | ERR_STATIC unsigned ERR_isError(size_t code) { return (code > ERROR(maxCode)); } |
| 35 | |
| 36 | ERR_STATIC ERR_enum ERR_getErrorCode(size_t code) |
| 37 | { |
| 38 | if (!ERR_isError(code)) |
| 39 | return (ERR_enum)0; |
| 40 | return (ERR_enum)(0 - code); |
| 41 | } |
| 42 | |
| 43 | #endif /* ERROR_H_MODULE */ |