VP1TimeUtilities.cxx

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/*
  Copyright (C) 2002-2022 CERN for the benefit of the ATLAS collaboration
*/

//                                                         //
//  Implementation of class VP1TimeUtilities              //
//                                                         //
//  Author: Riccardo Maria Bianchi <rbianchi@cern.ch>      //
//                                                         //
//  Initial version: Jan 2019                              //
//                                                         //
 
 
#include "VP1UtilsBase/VP1TimeUtilities.h"
 
#include <iostream>
#include <iomanip>
#include <string>
#include <sstream> // for std::ostringstream
 
 
std::string VP1TimeUtilities::getHumanReadableTimestamp(time_t t_timestamp)
{
    struct tm ltm;
    localtime_r(&t_timestamp, &ltm);
 
    std::string humanTimestamp;
 
    std::ostringstream ostri;
    ostri  << 1900 + ltm.tm_year
            << "-" << 1 + ltm.tm_mon  // tm_mon is in the range [0, 11], so 1 must be added to get real months
            << "-" << ltm.tm_mday
            << "T" << ltm.tm_hour << "-" << ltm.tm_min << "-" << ltm.tm_sec; // << "CEST"; FIXME: check if time zone is available on data file
 
    humanTimestamp = ostri.str();
    //std::cout << "'human readable' timestamp: " << m_humanTimestamp << std::endl;
    return humanTimestamp;
}