ACPI Temperature echoer

Read_Temp

// Compile with 'g++ <thisfile>.cc -o <you_choose_the_program_name_here>
//
// Use with xmobar/xmonad by inserting a line like so into your .xmobarrc.
//Config { font = "-misc-fixed-*-*-*-*-10-*-*-*-*-*-*-*"
//       , bgColor = "black"
//       , fgColor = "grey"
//       , position = Top
//       , lowerOnStart = True
//       , commands = [ Run Weather "EGPF" ["-t","<station>: <tempC>C","-L","18","-H","25","--normal","green","--high","red","--low","lightblue"] 36000
//                    , Run Network "eth0" ["-L","0","-H","32","--normal","green","--high","red"] 10
//                    , Run Network "wlan0" ["-L","0","-H","32","--normal","green","--high","red"] 10
//                    , Run Cpu ["-L","3","-H","50","--normal","green","--high","red"] 10
//                    , Run Memory ["-t","Mem: <usedratio>%"] 10
//                    , Run Swap [] 10
//                    , Run Com "uname" ["-s","-r"] "" 36000
//                    ---  \/  \/  \/  This line right here!!  \/  \/  \/
//                    , Run CommandReader "/home/hal/.xmonad/Read_Temp" "temperature"
//                    , Run Date "%a %b %_d %Y %H:%M:%S" "date" 10
//                    ]
//       , sepChar = "%"
//       , alignSep = "}{"
//       , template = "%cpu% | %memory% * %swap% | %eth0% - %wlan0% }{ %temperature% <fc=#ee9a00>%date%</fc>| %EGPF% | %uname%"
//       }


#include <iostream>
#include <fstream>
#include <stdlib.h>
#include <string>
#include <ctime>
#include <sstream>

template <class T>
T stringtoX(std::string text){
    std::stringstream ss(text);
    T temp;
    ss >> temp;
    return temp;
}

int main(int argc, char * argv[]){

    //The current temperature file.
    const std::string FilenameCurr("/sys/class/hwmon/hwmon0/temp1_input");
                                  ///sys/class/thermal/thermal_zone0/temp
    //The critical temperature file.
    const std::string FilenameCrit("/sys/class/hwmon/hwmon0/temp1_crit");
                                  ///sys/class/thermal/thermal_zone0/temp_....?....trip
    float tempA, tempB;
    std::fstream FI;
    std::string strbuffer;

    //The current temperature file.
    FI.open(FilenameCurr.c_str(), std::ifstream::in);
    FI.close();
    if( !FI.good() ) return 1;
    FI.clear();

    //The critical temperature file.
    FI.open(FilenameCrit.c_str(), std::ifstream::in);
    FI.close();
    if( !FI.good() ) return 1;
    FI.clear();


    while(true){
        FI.open(FilenameCurr.c_str(), std::ifstream::in);
        getline(FI,strbuffer);
        tempA = stringtoX<float>( strbuffer );
        FI.close();

        FI.open(FilenameCrit.c_str(), std::ifstream::in);
        getline(FI,strbuffer);
        tempB = stringtoX<float>( strbuffer );
        FI.close();

        //Scale milli-Celcius to Celcius.
        tempA *= 0.001;
        tempB *= 0.001;

        if(tempA >= 90.0){
            system("killall mplayer; killall globe");
            std::cout << "THERMAL PRECAUTIONS! ";
        }

        std::cout << tempA << "/" << tempB <<  " C" << std::endl;
        std::cout.flush();

        usleep(1000000);
    }
    return 0;
}