src/W1CounterDevice.cc

   1 /*
   2  * W1CounterDevice.cc
   3  *
   4  *  Created on: Oct 30, 2010
   5  *      Author: lamikr
   6  */
   7
   8 #include <iostream>
   9 #include <fstream>
  10 #include <sstream>
  11 #include <iomanip>
  12
  13 #include <vector>
  14
  15 #include "W1CounterDevice.hh"
  16
  17 using namespace std;
  18 using namespace w1;
  19
  20 template <class NumberDataType>
  21 bool string_to_number(NumberDataType& result,
  22                  const std::string& string_param,
  23                  std::ios_base& (*format)(std::ios_base&))
  24 {
  25         std::istringstream iss(string_param);
  26         return !(iss >> format >> result).fail();
  27 }
  28
  29 W1CounterDevice::W1CounterDevice(int family_code_param,
  30                                 string device_id_param,
  31                                 dirent *direntry_param): W1Device(family_code_param, device_id_param, direntry_param) {
  32         string text;
  33
  34         ifstream ifs(slave_file.c_str());
  35         if (ifs.is_open() == true) {
  36                 text    = get_time() + ": device type = " + get_device_type() + ", id = " + id + ", could not read file: " + slave_file;
  37                 cout << text << endl;
  38                 cout << "verify that you have w1_ds2423 kernel module loaded." << endl;
  39                 ifs.close();
  40         }
  41 }
  42
  43 W1CounterDevice::~W1CounterDevice() {
  44         // TODO Auto-generated destructor stub
  45 }
  46
  47 bool W1CounterDevice::is_supported_w1_family_code(int family_code) {
  48         bool    ret_val;
  49
  50         ret_val = false;
  51         switch(family_code) {
  52                 case 0x1d:
  53                         ret_val = true;
  54                         break;
  55         }
  56         return ret_val;
  57 }
  58
  59 vector<double> *W1CounterDevice::get_raw_data() {
  60         int             pos;
  61         int             b_cnt;
  62         string          val_str;
  63         int             val_dbl;
  64         vector<double>  *ret_val;
  65
  66         ret_val = NULL;
  67         ifstream ifs(slave_file.c_str());
  68         if (ifs.is_open() == true) {
  69                 while(getline(ifs, val_str)) {
  70                         b_cnt   = val_str.length();
  71                         if (b_cnt > 0) {
  72                                 pos     = val_str.find("crc=YES c=");
  73                                 if ((pos >= 0) &&
  74                                     ((pos + 10) < b_cnt)) {
  75                                         if (ret_val == NULL) {
  76                                                 ret_val = new vector<double>();
  77                                         }
  78                                         val_str = val_str.substr(pos + 10);
  79                                         string_to_number<int>(val_dbl, val_str, dec);
  80                                         ret_val->push_back(val_dbl);
  81                                 }
  82                         }
  83                 }
  84                 ifs.close();
  85         }
  86         return ret_val;
  87 }
  88
  89 string W1CounterDevice::get_unit() {
  90         return "";
  91 }
  92
  93 string W1CounterDevice::get_device_type() {
  94         return "Counter Device";
  95 }