src/can_decode_message.cpp

   1 /*
   2  * Copyright (C) 2015, 2016 "IoT.bzh"
   3  * Author "Romain Forlot" <romain.forlot@iot.bzh>
   4  * Author "Loic Collignon" <loic.collignon@iot.bzh>
   5  *
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at
   9  *
  10  *       http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  */
  18
  19 #include "can_decode_message.hpp"
  20
  21 void can_decode_message(can_bus_t &can_bus)
  22 {
  23         can_message_t can_message(can_bus.interface_) ;
  24         std::vector <CanSignal> signals;
  25         std::vector <CanSignal>::iterator signals_i;
  26         openxc_VehicleMessage vehicle_message;
  27         openxc_DynamicField search_key, ret;
  28         bool send = true;
  29
  30         decoder_t decoder;
  31
  32         while(can_bus.has_can_message())
  33         {
  34                 can_message = can_bus.next_can_message();
  35
  36                 /* First we have to found which CanSignal is */
  37                 search_key = build_DynamicField((double)can_message.get_id());
  38                 signals = find_can_signals(can_bus.interface_, search_key);
  39
  40                 /* Decoding the message ! Don't kill the messenger ! */
  41                 for(const auto& sig : signals)
  42                 {
  43                         std::map<std::string, struct afb_event> subscribed_signals = get_subscribed_signals();
  44                         const auto& it_event = subscribed_signals.find(sig.genericName);
  45
  46                         if(it_event != subscribed_signals.end() &&
  47                                 afb_event_is_valid(it_event->second))
  48                         {
  49                                 ret = decoder.decodeSignal(sig, can_message, getSignals(), &send);
  50
  51                                 openxc_SimpleMessage s_message = build_SimpleMessage(sig.genericName, ret);
  52
  53                                 vehicle_message = build_VehicleMessage_with_SimpleMessage(openxc_DynamicField_Type::openxc_DynamicField_Type_NUM, s_message);
  54                                 can_bus.push_new_vehicle_message(vehicle_message);
  55                         }
  56                 }
  57         }
  58 }