getProcUpTime()

Process Up Time

Read data from the system files in /proc. We retrieve the system frequency for calculating the process up time.

string ProcessParser::getProcUpTime(string pid)
{
    string line;
    string value;
    float result;
    ifstream stream = Util::getStream((Path::basePath() + pid + "/" +  Path::statPath()));
    getline(stream, line);
    string str = line;
    istringstream buf(str);
    istream_iterator<string> beg(buf), end;
    vector<string> values(beg, end); // done!
    // Using sysconf to get clock ticks of the host machine
    return to_string(float(stof(values[13])/sysconf(_SC_CLK_TCK)));
}