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-/*
- * Copyright (C) 2015, 2016 "IoT.bzh"
- * Author "Romain Forlot" <romain.forlot@iot.bzh>
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#pragma once
-
-#include <string>
-#include <vector>
-
-#include "uds/uds.h"
-#include "uds/uds_types.h"
-#include "../utils/timer.hpp"
-#include "../can/can-bus-dev.hpp"
-
-class active_diagnostic_request_t;
-class diagnostic_manager_t;
-
-/// @brief The signature for an optional function that can apply the neccessary
-/// formula to translate the binary payload into meaningful data.
-///
-/// @param[in] response - the received DiagnosticResponse (the data is in response.payload,
-/// a byte array). This is most often used when the byte order is signiticant, i.e. with many OBD-II PID formulas.
-/// @param[in] parsed_payload - the entire payload of the response parsed as an int.
-///
-/// @return float value after decoding.
-///
-typedef float (*DiagnosticResponseDecoder)(const DiagnosticResponse* response,
- float parsed_payload);
-
-/// @brief: The signature for an optional function to handle a new diagnostic
-/// response.
-///
-/// @param[in] request - The original diagnostic request.
-/// @param[in] response - The response object that was just received.
-/// @param[in] parsed_payload - The payload of the response, parsed as a float.
-///
-typedef void (*DiagnosticResponseCallback)(const active_diagnostic_request_t* request,
- const DiagnosticResponse* response, float parsed_payload);
-
-///
-/// @brief An active diagnostic request, either recurring or one-time.
-///
-/// Will host a diagnostic_message_t class members to describe an on going
-/// diagnostic request on the CAN bus. Diagnostic message will be converted to
-/// a DiagnosticRequest using ad-hoc method build_diagnostic_request from diagnostic message.
-/// Then missing member, that can not be hosted into a DiagnosticRequest struct, will be passed
-/// as argument when adding the request to (non)-recurrent vector. Argument will be used to instanciate
-/// an active_diagnostic_request_t object before sending it.
-///
-class active_diagnostic_request_t {
-private:
- std::string bus_; ///< bus_ - The CAN bus this request should be made on, or is currently in flight-on
- uint32_t id_; ///< id_ - The arbitration ID (aka message ID) for the request.
- DiagnosticRequestHandle* handle_; ///< handle_ - A handle for the request to keep track of it between
- ///< sending the frames of the request and receiving all frames of the response.
- std::string name_; ///< name_ - Human readable name, to be used when publishing received responses.
- ///< TODO: If the name is NULL, the published output will use the raw OBD-II response format.
- static std::string prefix_; ///< prefix_ - It has to reflect the JSON object which it comes from. It makes easier sorting
- ///< incoming CAN messages.
- DiagnosticResponseDecoder decoder_; ///< decoder_ - An optional DiagnosticResponseDecoder to parse the payload of responses
- ///< to this request. If the decoder is NULL, the output will include the raw payload
- ///< instead of a parsed value.
- DiagnosticResponseCallback callback_; ///< callback_ - An optional DiagnosticResponseCallback to be notified whenever a
- ///< response is received for this request.
- bool recurring_; ///< bool recurring_ - If true, this is a recurring request and it will remain as active until explicitly cancelled.
- ///< The frequencyClock attribute controls how often a recurrin request is made.
- bool wait_for_multiple_responses_; ///< wait_for_multiple_responses_ - False by default, when any response is received for a request
- ///< it will be removed from the active list. If true, the request will remain active until the timeout
- ///< clock expires, to allow it to receive multiple response (e.g. to a functional broadcast request).
- bool in_flight_; ///< in_flight_ - True if the request has been sent and we are waiting for a response.
- frequency_clock_t frequency_clock_; ///< frequency_clock_ - A frequency_clock_t object to control the send rate for a
- ///< recurring request. If the request is not reecurring, this attribute is not used.
- frequency_clock_t timeout_clock_; ///< timeout_clock_ - A frequency_clock_t object to monitor how long it's been since
- ///< this request was sent.
-public:
- bool operator==(const active_diagnostic_request_t& b);
- active_diagnostic_request_t& operator=(const active_diagnostic_request_t& adr);
-
- active_diagnostic_request_t();
- active_diagnostic_request_t(active_diagnostic_request_t&&) = default;
- active_diagnostic_request_t(const std::string& bus, DiagnosticRequest* request,
- const std::string& name, bool wait_for_multiple_responses,
- const DiagnosticResponseDecoder decoder,
- const DiagnosticResponseCallback callback, float frequencyHz);
-
- uint32_t get_id() const;
- const std::shared_ptr<can_bus_dev_t> get_can_bus_dev() const;
- DiagnosticRequestHandle* get_handle();
- uint16_t get_pid() const;
- const std::string get_name() const;
- static std::string& get_prefix();
- DiagnosticResponseDecoder& get_decoder();
- DiagnosticResponseCallback& get_callback();
- bool get_recurring() const;
- bool get_in_flight() const;
- frequency_clock_t& get_frequency_clock();
- frequency_clock_t& get_timeout_clock();
-
- void set_handle(DiagnosticShims& shims, DiagnosticRequest* request);
- void set_in_flight(bool val);
-
- static bool is_diagnostic_signal(const std::string& name);
-
- bool should_send();
-
- bool timed_out();
- bool response_received() const;
- bool request_completed();
-};