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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 <systemd/sd-event.h>
+#include <map>
+#include <vector>
+
+#include "uds/uds.h"
+#include "openxc.pb.h"
+#include "../can/can-bus.hpp"
+#include "active-diagnostic-request.hpp"
+
+/// Each CAN bus needs its own set of shim functions, so this should
+/// match the maximum CAN controller count.
+///
+#define MAX_SHIM_COUNT can_bus_t.get_can_devices().size()
+#define DIAGNOSTIC_RESPONSE_ARBITRATION_ID_OFFSET 0x8
+
+class active_diagnostic_request_t;
+
+///
+/// @brief The core structure for running the diagnostics module by the binding.
+///
+/// This stores details about the active requests and shims required to connect
+/// the diagnostics library to the CAN device.
+///
+class diagnostic_manager_t {
+protected:
+ static bool shims_send(const uint32_t arbitration_id, const uint8_t* data, const uint8_t size);
+ static void shims_logger(const char* m, ...);
+ static void shims_timer();
+
+private:
+ DiagnosticShims shims_; /*!< shims_ - Shim functions for each CAN bus that plug the diagnostics
+ * library (uds-c) into the VI's CAN peripheral.*/
+ std::string bus_; /*!< bus_ - A pointer to the CAN bus that should be used for all standard OBD-II requests, if the bus is not
+ * explicitly spcified in the request. Default to the first bus CAN at initialization.*/
+ std::vector<active_diagnostic_request_t*> recurring_requests_; /*!< recurringRequests - A list of active recurring diagnostic requests.*/
+ std::vector<active_diagnostic_request_t*> non_recurring_requests_; /*!< nonrecurringRequests - A list of active one-time diagnostic requests. When a
+ * response is received for a non-recurring request or it times out, it is removed*/
+ bool initialized_; /*!< * initialized - True if the DiagnosticsManager has been initialized with shims. It will interface with the uds-c lib*/
+
+ void init_diagnostic_shims();
+ void reset();
+public:
+ diagnostic_manager_t();
+
+ bool initialize();
+
+ std::shared_ptr<can_bus_dev_t> get_can_bus_dev();
+ DiagnosticShims& get_shims();
+
+ void find_and_erase(active_diagnostic_request_t* entry, std::vector<active_diagnostic_request_t*>& requests_list);
+ void cancel_request(active_diagnostic_request_t* entry);
+ void cleanup_request(active_diagnostic_request_t* entry, bool force);
+ void cleanup_active_requests(bool force);
+ active_diagnostic_request_t* find_recurring_request(const DiagnosticRequest* request);
+
+ void checkSupportedPids(const active_diagnostic_request_t& request,
+ const DiagnosticResponse& response, float parsedPayload);
+
+ // Subscription parts
+ bool add_request(DiagnosticRequest* request, const std::string name,
+ bool waitForMultipleResponses, const DiagnosticResponseDecoder decoder,
+ const DiagnosticResponseCallback callback);
+ bool validate_optional_request_attributes(float frequencyHz);
+ bool add_recurring_request(DiagnosticRequest* request, const char* name,
+ bool waitForMultipleResponses, const DiagnosticResponseDecoder decoder,
+ const DiagnosticResponseCallback callback, float frequencyHz);
+
+ // Sendig requests part
+ bool conflicting(active_diagnostic_request_t* request, active_diagnostic_request_t* candidate) const;
+ bool clear_to_send(active_diagnostic_request_t* request) const;
+ int reschedule_request(sd_event_source *s, uint64_t usec, active_diagnostic_request_t* adr);
+ static int send_request(sd_event_source *s, uint64_t usec, void *userdata);
+
+ // Decoding part
+ openxc_VehicleMessage relay_diagnostic_response(active_diagnostic_request_t* adr, const DiagnosticResponse& response);
+ openxc_VehicleMessage relay_diagnostic_handle(active_diagnostic_request_t* entry, const can_message_t& cm);
+ openxc_VehicleMessage find_and_decode_adr(const can_message_t& cm);
+ bool is_diagnostic_response(const can_message_t& cm);
+
+};