src/can-signals.cpp

   1 /*
   2  * Copyright (C) 2015, 2016 "IoT.bzh"
   3  * Author "Romain Forlot" <romain.forlot@iot.bzh>
   4  *
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  *       http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  */
  17
  18 #include <string>
  19 #include <vector>
  20 #include <fnmatch.h>
  21 #include "can-signals.h"
  22
  23 /* Can signal event map making access to afb_event
  24  * external to openxc existing structure.
  25  */
  26 std::map <CanSignal, struct afb_event> subscribed_signals;
  27 std::map <CanSignal, struct afb_event>::iterator subscribed_signals_i;
  28
  29 /* Find one or many signals based on its name or id
  30 * passed through openxc_DynamicField.
  31 */
  32 void find_can_signals(openxc_DynamicField *key, std:vector <CanSignal> *signals)
  33 {
  34         int n_signals, i;
  35
  36         n_signals = getSignalCount();
  37
  38         switch(key->type):
  39         {
  40                 case openxc_DynamicField_Type::openxc_DynamicField_Type_STRING:
  41                         for(i=0; i<=n_signals; i++)
  42                         {
  43                                 if(fnmatch(key->string_value, SIGNALS[i]->genericName) == 0)
  44                                         signals.insert(&SIGNALS[i]);
  45                         }
  46                         break;
  47                 case openxc_DynamicField_Type::openxc_DynamicField_Type_NUM:
  48                         for(i=0; i<=n_signals; i++)
  49                         {
  50                                 CanMessageDefinition *msg_def = SIGNALS[i]->message;
  51                                 if(msg_def->id == key->numeric_value)
  52                                         signals.insert(&SIGNALS[i])
  53                         }
  54                         break;
  55                 default:
  56                         ERROR(interface, "find_signals: wrong openxc_DynamicField specified. Use openxc_DynamicField_Type_NUM or openxc_DynamicField_Type_STRING type only.");
  57                         return NULL;
  58                         break;
  59         }
  60 }
  61
  62 CanSignal* getSignals()
  63 {
  64         return &SIGNALS;
  65 }
  66
  67 int getSignalCount()
  68 {
  69         return SIGNALS.size();
  70 }