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 std:vector <CanSignal> find_can_signals(openxc_DynamicField *key)
  33 {
  34         std:vector <CanSignal> signals;
  35         int n_signals, i;
  36
  37         n_signals = getSignalCount();
  38
  39         switch(key->type):
  40         {
  41                 case openxc_DynamicField_Type::openxc_DynamicField_Type_STRING:
  42                         for(i=0; i<=n_signals; i++)
  43                         {
  44                                 if(fnmatch(key->string_value, SIGNALS[i]->genericName) == 0)
  45                                         signals.push_back(&SIGNALS[i]);
  46                         }
  47                         break;
  48                 case openxc_DynamicField_Type::openxc_DynamicField_Type_NUM:
  49                         for(i=0; i<=n_signals; i++)
  50                         {
  51                                 CanMessageDefinition *msg_def = SIGNALS[i]->message;
  52                                 if(msg_def->id == key->numeric_value)
  53                                         signals.push_back(&SIGNALS[i])
  54                         }
  55                         break;
  56                 default:
  57                         ERROR(interface, "find_signals: wrong openxc_DynamicField specified. Use openxc_DynamicField_Type_NUM or openxc_DynamicField_Type_STRING type only.");
  58                         return NULL;
  59                         break;
  60         }
  61 }
  62
  63 CanSignal* getSignals()
  64 {
  65         return &SIGNALS;
  66 }
  67
  68 int getSignalCount()
  69 {
  70         return SIGNALS.size();
  71 }