generated_time.hpp

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/* Author: David V. Lu!! */
 
#pragma once
 
#include <filesystem>
#include <string>
 
namespace moveit_setup
{
using GeneratedTime = std::filesystem::file_time_type;
 
template <typename CLOCK>
inline GeneratedTime convertTime(const typename CLOCK::time_point& t0)
{
  return std::chrono::time_point_cast<GeneratedTime::duration>(t0 - CLOCK::now() + GeneratedTime::clock::now());
}
 
template <typename CLOCK>
inline typename CLOCK::time_point convertTime(const GeneratedTime& t0)
{
  return std::chrono::time_point_cast<typename CLOCK::duration>(t0 - GeneratedTime::clock::now() + CLOCK::now());
}
 
template <typename CLOCK>
inline GeneratedTime convertTime(long int epoch)
{
  auto t0 = CLOCK::from_time_t(epoch);
  return convertTime<CLOCK>(t0);
}
 
inline GeneratedTime fromEpoch(long int epoch)
{
  return convertTime<std::chrono::system_clock>(epoch);
}
 
template <typename CLOCK>
inline std::time_t toStandardTime(const GeneratedTime& t)
{
  return CLOCK::to_time_t(convertTime<CLOCK>(t));
}
 
inline long int toEpoch(const GeneratedTime& t)
{
  return toStandardTime<std::chrono::system_clock>(t);
}
 
inline std::string toString(const GeneratedTime& t)
{
  std::time_t tt = toStandardTime<std::chrono::system_clock>(t);
  char buff[20];
  strftime(buff, 20, "%Y-%m-%d %H:%M:%S", localtime(&tt));
  return std::string(buff);
}
 
}  // namespace moveit_setup