triangle/TimeRecord.cpp

//
// Created by zx on 22-11-3.
//

#include "TimeRecord.h"
#include <iostream>
std::map<std::string, TimeRecord::Record> TimeRecord::records_=std::map<std::string, TimeRecord::Record>();


void TimeRecord::PrintAll()
{
    std::cout <<">> ===== Printing run time ====="<<std::endl;
    for (const auto& r : records_) {
        std::cout<< "> [ " << r.first << " ] average time usage: "
                  << std::accumulate(r.second.time_usage_in_ms_.begin(), r.second.time_usage_in_ms_.end(), 0.0) /
                          double(r.second.time_usage_in_ms_.size())
                  << " ms , called times: " << r.second.time_usage_in_ms_.size()<<std::endl;
    }
    std::cout << ">>> ===== Printing run time end ====="<<std::endl;
}
void TimeRecord::DumpIntoFile(const std::string& file_name)
{
    std::ofstream ofs(file_name, std::ios::out);
    if (!ofs.is_open()) {
        std::cout << "Failed to open file: " << file_name<<std::endl;
        return;
    } else {
        std::cout << "Dump Time Records into file: " << file_name<<std::endl;
    }

    size_t max_length = 0;
    for (const auto& iter : records_) {
        ofs << iter.first << ", ";
        if (iter.second.time_usage_in_ms_.size() > max_length) {
            max_length = iter.second.time_usage_in_ms_.size();
        }
    }
    ofs << std::endl;

    for (size_t i = 0; i < max_length; ++i) {
        for (const auto& iter : records_) {
            if (i < iter.second.time_usage_in_ms_.size()) {
                ofs << iter.second.time_usage_in_ms_[i] << ",";
            } else {
                ofs << ",";
            }
        }
        ofs << std::endl;
    }
    ofs.close();
}
double TimeRecord::GetMeanTime(const std::string& func_name)
{
    if (records_.find(func_name) == records_.end()) {
        return 0.0;
    }

    auto r = records_[func_name];
    return std::accumulate(r.time_usage_in_ms_.begin(), r.time_usage_in_ms_.end(), 0.0) /
            double(r.time_usage_in_ms_.size());
}