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 * Copyright (c) 2016 - 2017, Nordic Semiconductor ASA
 * 
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 * are permitted provided that the following conditions are met:
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 *    list of conditions and the following disclaimer.
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 *    Semiconductor ASA integrated circuit in a product or a software update for
 *    such product, must reproduce the above copyright notice, this list of
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 *    materials provided with the distribution.
 * 
 * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
 *    contributors may be used to endorse or promote products derived from this
 *    software without specific prior written permission.
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 * 4. This software, with or without modification, must only be used with a
 *    Nordic Semiconductor ASA integrated circuit.
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/**@file
 * @addtogroup nrf_log Logger module
 * @ingroup    app_common
 *
 * @defgroup nrf_log_backend Backend of nrf_log
 * @{
 * @ingroup  nrf_log
 * @brief    The nrf_log backend interface.
 */


#ifndef NRF_LOG_BACKEND_H__
#define NRF_LOG_BACKEND_H__

#include "nrf_log_ctrl.h"
#include "sdk_errors.h"
#include <stdbool.h>

/**
 * @brief Function for initializing the logger backend.
 *
 * param blocking Set true if handler functions should block until completion.
 *
 * @return NRF_SUCCESS after successful initialization, error code otherwise.
 */
ret_code_t nrf_log_backend_init(bool blocking);

/**
 * @brief Function for returning a pointer to a function for handling standard
 * log entries (@ref NRF_LOG_ERROR, etc.).
 *
 * @return Pointer to a handler.
 */
nrf_log_std_handler_t nrf_log_backend_std_handler_get(void);

/**
 * @brief Function for returning a pointer to a function for handling
 * hexdumps (@ref NRF_LOG_HEXDUMP_ERROR, etc.).
 *
 * @return Pointer to a handler.
 */
nrf_log_hexdump_handler_t nrf_log_backend_hexdump_handler_get(void);

/**
 * @brief Function for blocking reading of a byte from the backend.
 *
 * @return Byte.
 */
uint8_t nrf_log_backend_getchar(void);
#endif // NRF_LOG_BACKEND_H__
/** @} */