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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.
*/
/**
* @class message_definition_t
*
* @brief The definition of a CAN message. This includes a lot of metadata, so
* to save memory this struct should not be used for storing incoming and
* outgoing CAN messages.
*/
#pragma once
#include <vector>
#include <memory>
#include "signals.hpp"
#include "message-set.hpp"
#include "../utils/timer.hpp"
#include "message/message.hpp"
class message_set_t;
/// @brief The definition of a CAN message. This includes a lot of metadata, so
/// to save memory this class gets the signal_t object related to a CAN message.
class message_definition_t
{
private:
std::shared_ptr<message_set_t> parent_; ///< parent_ - Pointer to the CAN message set holding this CAN message definition */
std::string bus_; ///< bus_ - Address of CAN bus device. */
uint32_t id_; ///< id_ - The ID or the PGN (if j1939) of the message.*/
std::string name_; ///< name_ - J1939 PGN name
uint32_t length_; ///< length_ - Message data length in bytes. For J1939 message, this is the expected data size
uint32_t flags_; ///< format_ - the format of the message's ID.*/
frequency_clock_t frequency_clock_; ///< clock_ - an optional frequency clock to control the output of this
/// message, if sent raw, or simply to mark the max frequency for custom
/// handlers to retrieve.*/
bool frame_layout_is_little_; ///<frame_layout_is_little_ Defines if the can frame layout is little endian or big endian.
/// Default is true;
bool force_send_changed_; ///< force_send_changed_ - If true, regardless of the frequency, it will send CAN
/// message if it has changed when using raw passthrough.*/
std::vector<uint8_t> last_value_; ///< last_value_ - The last received value of the message. Defaults to undefined.
/// This is required for the forceSendChanged functionality, as the stack
/// needs to compare an incoming CAN message with the previous frame.*/
vect_ptr_signal_t signals_; ///< signals_ - Vector holding signal_t object which share the same arbitration ID */
public:
//message_definition_t(const message_definition_t& b);
message_definition_t(const std::string bus);
message_definition_t(const std::string bus, uint32_t id, frequency_clock_t frequency_clock, bool force_send_changed);
message_definition_t(const std::string bus, uint32_t id, uint32_t flags, frequency_clock_t frequency_clock, bool force_send_changed);
message_definition_t(const std::string bus,
uint32_t id,
uint32_t flags,
bool frame_layout_is_little,
frequency_clock_t frequency_clock,
bool force_send_changed,
const vect_ptr_signal_t& signals);
message_definition_t(const std::string bus,
uint32_t id,
std::string name,
uint32_t length,
uint32_t flags,
bool frame_layout_is_little,
frequency_clock_t frequency_clock,
bool force_send_changed,
const vect_ptr_signal_t& signals);
const std::string get_bus_name() const;
const std::string get_bus_device_name() const;
const std::string get_name() const;
uint32_t get_id() const;
bool is_fd() const;
bool is_j1939() const;
bool is_isotp() const;
vect_ptr_signal_t& get_signals();
uint32_t get_length() const;
uint32_t get_flags() const;
bool frame_layout_is_little() const;
void set_parent(std::shared_ptr<message_set_t> parent);
void set_last_value(std::shared_ptr<message_t> m);
};
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