+
+bool application_t::isEngineOn()
+{
+ struct utils::signals_found sf;
+ openxc_DynamicField search_key = build_DynamicField("engine.speed");
+ sf = utils::signals_manager_t::instance().find_signals(search_key);
+ bool engine_on = false;
+ uint64_t last_timestamp_in_s;
+
+ if(sf.can_signals.size() == 1)
+ {
+ last_timestamp_in_s = sf.can_signals.front()->get_last_value_with_timestamp().second
+ / MICROSECONDS_IN_SECOND;
+
+ if(sf.can_signals.front()->get_last_value_with_timestamp().first > 0 &&
+ std::difftime(std::time(nullptr), last_timestamp_in_s) < ENGINE_VALUE_TIMEOUT)
+ {
+ engine_on = true;
+ }
+ else
+ {
+ AFB_NOTICE("is_engine_on: engine.speed CAN signal found, but engine seems off");
+ }
+ }
+ else
+ {
+ AFB_NOTICE("is_engine_on: Can't identify a useable engine.speed CAN signal");
+ }
+
+ if(sf.diagnostic_messages.size() == 1)
+ {
+ last_timestamp_in_s = sf.diagnostic_messages.front()->get_last_value_with_timestamp().second
+ / MICROSECONDS_IN_SECOND;
+
+ if(sf.diagnostic_messages.front()->get_last_value_with_timestamp().first > 0 &&
+ std::difftime(std::time(nullptr), last_timestamp_in_s) < ENGINE_VALUE_TIMEOUT)
+ {
+ engine_on = true;
+ }
+ else
+ {
+ AFB_NOTICE("is_engine_on: engine.speed diagnostic message found, but engine seems off");
+ }
+ }
+ else
+ {
+ AFB_NOTICE("is_engine_on: Can't identify a useable engine.speed diagnostic message");
+ }
+
+ return engine_on;
+}
\ No newline at end of file