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/*!
* \file base_time.hh
* \brief Header file for the control port base_time functionality.
* \author ETSI STF525
* \copyright ETSI Copyright Notification
* No part may be reproduced except as authorized by written permission.
* The copyright and the foregoing restriction extend to reproduction in all media.
* All rights reserved.
* \version 0.1
*/
#pragma once
#include <chrono>
/**
* \class base_time
* \brief This class provides time tools such as getting current time
*/
class base_time {
const unsigned long long its_base_time_ms = 1072915200000L; //! Base time 01/01/2004 12:00am in millseconds
static base_time* _instance;
private:
base_time() { }; //! Can not be created manually
public:
static inline base_time& get_instance();
virtual ~base_time() { if (_instance != nullptr) delete _instance; };
public:
inline const unsigned long long get_current_time_ms() const;
inline const unsigned long long get_its_base_time_ms() const;
inline const unsigned long long get_its_current_time_ms() const;
inline const unsigned long long get_its_current_time_us() const;
inline const unsigned long long get_its_current_time_mod_ms() const;
}; // End of class base_time
// static functions
base_time& base_time::get_instance() {
return (_instance != nullptr) ? *_instance : *(_instance = new base_time());
}
const unsigned long long base_time::get_current_time_ms() const {
return std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count();
}
const unsigned long long base_time::get_its_base_time_ms() const {
return base_time::its_base_time_ms;
}
const unsigned long long base_time::get_its_current_time_ms() const {
return std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count() - base_time::its_base_time_ms;
}
const unsigned long long base_time::get_its_current_time_us() const {
return std::chrono::duration_cast<std::chrono::microseconds>(std::chrono::system_clock::now().time_since_epoch()).count() - base_time::its_base_time_ms * 1000;
}
const unsigned long long base_time::get_its_current_time_mod_ms() const {
return (std::chrono::duration_cast<std::chrono::milliseconds>(std::chrono::system_clock::now().time_since_epoch()).count() - base_time::its_base_time_ms) % 65536;
}