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Diffstat (limited to 'low-can-binding/diagnostic/active-diagnostic-request.cpp')
| -rw-r--r-- | low-can-binding/diagnostic/active-diagnostic-request.cpp | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/low-can-binding/diagnostic/active-diagnostic-request.cpp b/low-can-binding/diagnostic/active-diagnostic-request.cpp new file mode 100644 index 00000000..7ddf1d51 --- /dev/null +++ b/low-can-binding/diagnostic/active-diagnostic-request.cpp @@ -0,0 +1,194 @@ +/* + * 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. + */ + +#include <map> +#include <fnmatch.h> + +#include "active-diagnostic-request.hpp" + +#include "../configuration.hpp" + +#define ERROR_PID 0xFF + +std::string active_diagnostic_request_t::prefix_ = "diagnostic_messages"; + +bool active_diagnostic_request_t::operator==(const active_diagnostic_request_t& b) +{ + return (bus_ == b.bus_ && id_ == b.id_ && handle_ == b.handle_); +} + +active_diagnostic_request_t& active_diagnostic_request_t::operator=(const active_diagnostic_request_t& adr) +{ + if (this != &adr) + { + bus_ = adr.bus_; + id_ = adr.id_; + handle_ = adr.handle_; + name_ = adr.name_; + decoder_ = adr.decoder_; + callback_ = adr.callback_; + recurring_ = adr.recurring_; + wait_for_multiple_responses_ = adr.wait_for_multiple_responses_; + in_flight_ = adr.in_flight_; + frequency_clock_ = adr.frequency_clock_; + timeout_clock_ = adr.timeout_clock_; + } + + return *this; +} + +active_diagnostic_request_t::active_diagnostic_request_t() + : bus_{nullptr}, id_{0}, handle_{nullptr}, name_{""}, + decoder_{nullptr}, callback_{nullptr}, recurring_{false}, wait_for_multiple_responses_{false}, + in_flight_{false}, frequency_clock_{frequency_clock_t()}, timeout_clock_{frequency_clock_t()} +{} + +active_diagnostic_request_t::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) + : bus_{bus}, id_{request->arbitration_id}, handle_{nullptr}, name_{name}, + decoder_{decoder}, callback_{callback}, recurring_{frequencyHz ? true : false}, wait_for_multiple_responses_{wait_for_multiple_responses}, + in_flight_{false}, frequency_clock_{frequency_clock_t(frequencyHz)}, timeout_clock_{frequency_clock_t(10)} +{} + +uint32_t active_diagnostic_request_t::get_id() const +{ + return id_; +} + +const std::shared_ptr<can_bus_dev_t> active_diagnostic_request_t::get_can_bus_dev() const +{ + return can_bus_t::get_can_device(bus_); +} + +uint16_t active_diagnostic_request_t::get_pid() const +{ + if (handle_->request.has_pid) + return handle_->request.pid; + return ERROR_PID; +} + +DiagnosticRequestHandle* active_diagnostic_request_t::get_handle() +{ + return handle_; +} + +const std::string active_diagnostic_request_t::get_name() const +{ + return name_; +} + +std::string& active_diagnostic_request_t::get_prefix() +{ + return active_diagnostic_request_t::prefix_; +} + +DiagnosticResponseDecoder& active_diagnostic_request_t::get_decoder() +{ + return decoder_; +} + +DiagnosticResponseCallback& active_diagnostic_request_t::get_callback() +{ + return callback_; +} + +bool active_diagnostic_request_t::get_recurring() const +{ + return recurring_; +} + +bool active_diagnostic_request_t::get_in_flight() const +{ + return in_flight_; +} + +frequency_clock_t& active_diagnostic_request_t::get_frequency_clock() +{ + return frequency_clock_; +} + +frequency_clock_t& active_diagnostic_request_t::get_timeout_clock() +{ + return timeout_clock_; +} + +void active_diagnostic_request_t::set_handle(DiagnosticShims& shims, DiagnosticRequest* request) +{ + handle_ = new DiagnosticRequestHandle(generate_diagnostic_request(&shims, request, nullptr)); +} + +void active_diagnostic_request_t::set_in_flight(bool val) +{ + in_flight_ = val; +} + +/// +/// @brief Check if requested signal name is a diagnostic message. If the name +/// begin with the diagnostic message prefix then true else false. +/// +/// @param[in] name - A signal name. +/// +/// @return true if name began with the diagnostic message prefix else false. +/// +bool active_diagnostic_request_t::is_diagnostic_signal(const std::string& name) +{ + const std::string p = active_diagnostic_request_t::prefix_ + "*"; + if(::fnmatch(p.c_str(), name.c_str(), FNM_CASEFOLD) == 0) + return true; + return false; +} + +/// @brief Check is the request should be sent or not +/// +/// @return true if the request is not running or recurring nor completed, +/// or it's recurring, its clock elapsed +/// so it's time to send another one. +bool active_diagnostic_request_t::should_send() +{ + return !in_flight_ && ( (!recurring_ && !request_completed()) || + (recurring_ && frequency_clock_.elapsed(true)) ); +} + +/// @brief check if the timeout clock has elapsed +/// +/// @return true if elapsed, so it is a timeout, else false. +bool active_diagnostic_request_t::timed_out() +{ + // don't use staggered start with the timeout clock + return timeout_clock_.elapsed(false); +} + +/// @brief Returns true if a sufficient response has been received for a +/// diagnostic request. +/// +/// This is true when at least one response has been received and the request is +/// configured to not wait for multiple responses. Functional broadcast requests +/// may often wish to wait the full 100ms for modules to respond. +bool active_diagnostic_request_t::response_received() const +{ + return !wait_for_multiple_responses_ && + handle_->completed; +} + +/// @brief Returns true if the request has timed out waiting for a response, +/// or a sufficient number of responses has been received. +bool active_diagnostic_request_t::request_completed() +{ + return response_received() || + (timed_out() && diagnostic_request_sent(handle_)); +} |