C++ 时间处理5-统计函数运行时间

#pragma once

#include <cstdint>
#include <atomic>
#include <string>

namespace cutl
{
    /**
     * @brief A simple time counter class to measure the execution time of a function.
     *
     */
    class timecount
    {
    public:
        /**
         * @brief Construct a new timecount object
         * The constructor will record the begin time of the function calling.
         * @param func_name
         */
        timecount(const std::string &func_name);
        /**
         * @brief Destroy the timecount object
         * The desctructor will record the end time of the function calling and calculate the execution time.
         */
        ~timecount();

    private:
        std::string func_name_;
        std::atomic<uint64_t> start_time_;
    };

} // namespace

#include "timecount.h"
#include "timeutil.h"
#include "strfmt.h"
#include "inner/logger.h"

namespace cutl
{
    timecount::timecount(const std::string &func_name)
        : func_name_(func_name)
    {
        start_time_ = clocktime(timeunit::us);
    }

    timecount::~timecount()
    {
        auto end_time = clocktime(timeunit::us);
        auto duration = end_time - start_time_;
        auto text = "[timecount] " + func_name_ + " used " + fmt_timeduration_us(duration);
        CUTL_LOGGER.info("", text);
    }
} // namespace

#pragma once

#include <iostream>
#include "timecount.h"
#include "common.hpp"

void TestTimecount()
{
    PrintTitle("timecount");

    cutl::timecount tcount("TestTimecount");
    std::cout << "TestTimecount begin" << std::endl;
    std::this_thread::sleep_for(std::chrono::seconds(1));
    std::cout << "TestTimecount end" << std::endl;
}