spider-bot/fw/nrf52/nrf5_sdk/components/iot/coap/coap_resource.h

111 lines
4.4 KiB
C

/**
* Copyright (c) 2014 - 2019, Nordic Semiconductor ASA
*
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form, except as embedded into a Nordic
* Semiconductor ASA integrated circuit in a product or a software update for
* such product, must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other
* 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.
*
* 4. This software, with or without modification, must only be used with a
* Nordic Semiconductor ASA integrated circuit.
*
* 5. Any software provided in binary form under this license must not be reverse
* engineered, decompiled, modified and/or disassembled.
*
* THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
*/
/** @file coap_resource.h
*
* @defgroup iot_sdk_coap_resource CoAP Resource
* @ingroup iot_sdk_coap
* @{
* @brief Private API of Nordic's CoAP Resource implementation.
*/
#ifndef COAP_RESOURCE_H__
#define COAP_RESOURCE_H__
#include <stdint.h>
#include "coap_api.h"
#include "sdk_config.h"
#include "coap_message.h"
#include "nrf_error.h"
#include "sdk_errors.h"
#ifdef __cplusplus
extern "C" {
#endif
/**@brief Initialize the CoAP resource module.
*
* @details This function will initialize the root element pointer to NULL.
* This way, a new root can be assigned registered. The first
* resource added will be set as the new root.
*
* @retval NRF_SUCCESS This function will always return success.
*/
uint32_t coap_resource_init(void);
/**@brief Find a resource by traversing the resource names.
*
* @param[out] p_resource Located resource.
* @param[in] pp_uri_pointers Array of strings which forms the hierarchical path to the resource.
* @param[in] num_of_uris Number of URIs supplied through the path pointer list.
*
* @retval NRF_SUCCESS The resource was instance located.
* @retval NRF_ERROR_NOT_FOUND The resource was not located.
* @retval NRF_ERROR_INVALID_STATE If no resource has been registered.
*/
uint32_t coap_resource_get(coap_resource_t ** p_resource,
uint8_t ** pp_uri_pointers,
uint8_t num_of_uris);
/**@brief Process the request related to the resource.
*
* @details When a request is received and the resource has successfully been located it
* will pass on to this function. The method in the request will be matched against
* what the service provides of method handling callbacks. If the request expects a
* response this will be provided as output from this function. The memory provided
* for the response must be provided from outside.
*
* @param[in] p_resource Resource that will handle the request.
* @param[in] p_request The request to be handled.
* @param[inout] p_response Response message which can be used by the resource populate
* the response message.
*/
uint32_t coap_resource_process_request(coap_resource_t * p_resource,
coap_message_t * p_request,
coap_message_t * p_response);
#ifdef __cplusplus
}
#endif
#endif // COAP_MESSAGE_H__
/** @} */