linux-imx

/**

 * 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

​

/* ****************************************

*  Dependencies

******************************************/

#include <linux/types.h> /* size_t */

#include <linux/zstd.h>  /* enum list */

​

/* ****************************************

*  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 ERR_isError(size_t code) { return (code > ERROR(maxCode)); }

​

ERR_STATIC ERR_enum ERR_getErrorCode(size_t code)

{

    if (!ERR_isError(code))

        return (ERR_enum)0;

    return (ERR_enum)(0 - code);

}

​

#endif /* ERROR_H_MODULE */