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/*
* Copyright (C) 2012-2014 Tobias Brunner
* HSR Hochschule fuer Technik Rapperswil
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License as published by the
* Free Software Foundation; either version 2 of the License, or (at your
* option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
* for more details.
*/
/**
* @defgroup strerror_i strerror
* @{ @ingroup utils_i
*/
#ifndef STRERROR_H_
#define STRERROR_H_
/**
* Thread-safe wrapper around strerror and strerror_r.
*
* This is required because the first is not thread-safe (on some platforms)
* and the second uses two different signatures (POSIX/GNU) and is impractical
* to use anyway.
*
* @param errnum error code (i.e. errno)
* @return error message
*/
const char *strerror_safe(int errnum);
/**
* Initialize strerror_safe()
*/
void strerror_init();
/**
* Deinitialize strerror_safe()
*/
void strerror_deinit();
/**
* Replace usages of strerror(3) with thread-safe variant.
*/
#define strerror(errnum) strerror_safe(errnum)
#endif /** STRERROR_H_ @}*/
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