time_helper.hpp
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/*
* @Author: yangzilong
* @Date: 2021-12-17 17:45:43
* @Last Modified by: yangzilong
* @Email: yangzilong@objecteye.com
* @Description:
*/
#ifndef __OLFIELD_UTILS_TIMER_HPP__
#define __OLFIELD_UTILS_TIMER_HPP__
#include <chrono>
#include <string>
#include <mutex>
#include <atomic>
#include <thread>
#include <unordered_map>
#include <spdlog/spdlog.h>
#include <ctime>
using namespace std;
namespace helpers
{
namespace timer
{
template <typename T = std::chrono::seconds>
static inline long long get_timestamp()
{
auto now = std::chrono::system_clock::now();
return std::chrono::duration_cast<T>(now.time_since_epoch()).count();
}
static long long get_cur_time_ms(){
chrono::time_point<chrono::system_clock, chrono::milliseconds> tpMicro
= chrono::time_point_cast<chrono::milliseconds>(chrono::system_clock::now());
return tpMicro.time_since_epoch().count();
}
static std::string get_date(bool with_time = false)
{
std::chrono::system_clock::time_point t = std::chrono::system_clock::now();
auto as_time_t = std::chrono::system_clock::to_time_t(t);
struct tm tm;
#if defined(WIN32) || defined(_WINDLL)
localtime_s(&tm, &as_time_t); // win api thread safe, but std::localtime can't thread safe.
#else
localtime_r(&as_time_t, &tm); // linux api thread safe.
#endif
char buf[256]{0};
if (with_time)
snprintf(buf, sizeof(buf), "%04d%02d%02d_%02d%02d%02d", tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec);
else
snprintf(buf, sizeof(buf), "%04d%02d%02d", tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday);
return std::string(buf);
}
static long long get_ts_by_day_ms(int year, int month, int day)
{
// 初始化tm结构体
std::tm t = {};
t.tm_year = year - 1900; // 年从1900年开始计数
t.tm_mon = month - 1; // 月份从0开始计数，3月是第4个月
t.tm_mday = day; // 日
t.tm_hour = 0; // 小时
t.tm_min = 0; // 分钟
t.tm_sec = 0; // 秒
// 使用mktime转换为time_t（如果需要）
std::time_t timestamp = std::mktime(&t); // 或者直接使用下面的chrono方法跳过这一步
if (timestamp == -1) {
return -1; // 或者抛出异常等错误处理方式
}
// 使用chrono转换（如果不需要先转换为time_t）
auto timepoint = std::chrono::system_clock::from_time_t(timestamp);
auto duration = timepoint.time_since_epoch();
auto ms = std::chrono::duration_cast<std::chrono::milliseconds>(duration).count();
return ms;
}
} // namespace timer
} // namespace helpers
#endif // __OLFIELD_UTILS_TIMER_HPP__