//vov

#ifndef VTIME_HPP

#define VTIME_HPP

#include <cstdio>

#include <ctime>

#include <string>

#include <chrono>

#include <sys/time.h>

static const std::string vTimeStamp() {

  time_t tt=time(NULL);

  struct tm *stm=localtime(&tt);

  char tmp[50];

  sprintf(tmp, "%04d%02d%02d%02d%02d%02d",

    1900 + stm->tm_year,

    1 + stm->tm_mon,

    stm->tm_mday,

    stm->tm_hour,

    stm->tm_min,

    stm->tm_sec);

  std::string res(tmp);

  return res;

}

static const std::string vTimeStampMilli() {

  struct timeval tv;

  struct tm * time_ptr;

  gettimeofday(&tv, NULL);

  time_ptr = std::localtime(&tv.tv_sec);

  char accT[128];

  std::sprintf(accT, "%d-%02d-%02d %02d:%02d:%02d.%.04ld",

  time_ptr->tm_year + 1900,

  time_ptr->tm_mon + 1,

  time_ptr->tm_mday,

  time_ptr->tm_hour,

  time_ptr->tm_min,

  time_ptr->tm_sec,

  tv.tv_usec);

  std::string ret(accT);

  return ret;

}

static const std::chrono::steady_clock::time_point vTimePoint() {

    return std::chrono::steady_clock::now();

}

static double vTimePointDiff(std::chrono::steady_clock::time_point t1,

    std::chrono::steady_clock::time_point t2) {

    return std::chrono::duration_cast<std::chrono::duration<double>>(t2-t1).count()*1000;

}

#endif