system_info_cpu.hpp

#pragma once
 
#include <mutex>
#include <atomic>
#include <fstream>
#include <string>
#include <thread>
#include <chrono>
#include <cstdint>
 
namespace utils::system_info {

struct CPU {
    struct Stat {
        uint64_t idleTotal; 
        uint64_t total;     
    };

    struct TimeStat {
        uint64_t user, nice, system, idle, io_wait, irq, soft_irq, steal;

        [[nodiscard]] uint64_t getIdleTotal() const noexcept {
            return idle + io_wait;
        }

        [[nodiscard]] uint64_t getTotal() const noexcept {
            return user + nice + system + idle + io_wait + irq + soft_irq + steal;
        }
    };

    struct Usage {
        uint64_t idle;  
        uint64_t total; 
    };

    static Stat read();

    static float calculate(const Usage& prev, const Usage& curr);
};

void updateCPUUsage();

void startSystemUsageUpdater();

std::string getCpuModel();

float getLatestCpuUsage();
 
}  // namespace utils::system_info // end of SystemUsage