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-rw-r--r--low-can-binding/can/can-bus.hpp94
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diff --git a/low-can-binding/can/can-bus.hpp b/low-can-binding/can/can-bus.hpp
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-/*
- * Copyright (C) 2015, 2016, 2017 "IoT.bzh"
- * Author "Romain Forlot" <romain.forlot@iot.bzh>
- * Author "Loïc Collignon" <loic.collignon@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 <mutex>
-#include <queue>
-#include <thread>
-#include <linux/can.h>
-#include <condition_variable>
-
-#include "openxc.pb.h"
-#include "can-message.hpp"
-#include "can-bus-dev.hpp"
-#include "../diagnostic/active-diagnostic-request.hpp"
-
-#include "../low-can-binding.hpp"
-
-// TODO actual max is 32 but dropped to 24 for memory considerations
-#define MAX_ACCEPTANCE_FILTERS 24
-// TODO this takes up a ton of memory
-#define MAX_DYNAMIC_MESSAGE_COUNT 12
-
-#define CAN_ACTIVE_TIMEOUT_S 30
-
-/// @brief Object used to handle decoding and manage event queue to be pushed.
-///
-/// This object is also used to initialize can_bus_dev_t object after reading
-/// json conf file describing the CAN devices to use. Thus, those object will read
-/// on the device the CAN frame and push them into the can_bus_t can_message_q_ queue.
-///
-/// That queue will be later used to be decoded and pushed to subscribers.
-class can_bus_t
-{
-private:
- int conf_file_; ///< configuration file handle used to initialize can_bus_dev_t objects.
-
- void can_decode_message();
- std::thread th_decoding_; ///< thread that'll handle decoding a can frame
- bool is_decoding_ = false; ///< boolean member controling thread while loop
-
- void can_event_push();
- std::thread th_pushing_; ///< thread that'll handle pushing decoded can frame to subscribers
- bool is_pushing_ = false; ///< boolean member controling thread while loop
-
- std::condition_variable new_can_message_cv_; ///< condition_variable use to wait until there is a new CAN message to read
- std::mutex can_message_mutex_; ///< mutex protecting the can_message_q_ queue.
- std::queue <can_message_t> can_message_q_; ///< queue that'll store can_message_t to decoded
-
- std::condition_variable new_decoded_can_message_; ///< condition_variable use to wait until there is a new vehicle message to read from the queue vehicle_message_q_
- std::mutex decoded_can_message_mutex_; ///< mutex protecting the vehicle_message_q_ queue.
- std::queue <openxc_VehicleMessage> vehicle_message_q_; ///< queue that'll store openxc_VehicleMessage to pushed
-
- static std::map<std::string, std::shared_ptr<can_bus_dev_t>> can_devices_; ///< Can device map containing all can_bus_dev_t objects initialized during init_can_dev function
-
-public:
- can_bus_t(int conf_file);
- can_bus_t(can_bus_t&&);
-
- int init_can_dev();
- std::vector<std::string> read_conf();
-
- void start_threads();
- void stop_threads();
-
- int process_can_signals(can_message_t& can_message);
- int process_diagnostic_signals(diagnostic_manager_t& manager, const can_message_t& can_message);
-
- can_message_t next_can_message();
- void push_new_can_message(const can_message_t& can_msg);
- std::mutex& get_can_message_mutex();
- std::condition_variable& get_new_can_message_cv();
-
- openxc_VehicleMessage next_vehicle_message();
- void push_new_vehicle_message(const openxc_VehicleMessage& v_msg);
-
- const std::map<std::string, std::shared_ptr<can_bus_dev_t>>& get_can_devices() const;
- static std::shared_ptr<can_bus_dev_t> get_can_device(std::string bus);
-};