58 lines
1.6 KiB
C++
58 lines
1.6 KiB
C++
#ifndef __SYSTEMUSAGE_H__
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#define __SYSTEMUSAGE_H__
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#include <boost/asio/system_timer.hpp>
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#include <list>
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/**
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* @brief 参考 https://github.com/improvess/cpp-linux-system-stats
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*
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*/
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class SystemUsage {
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public:
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struct CpuStats { // see http://www.linuxhowtos.org/manpages/5/proc.htm
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int user;
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int nice;
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int system;
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int idle;
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int iowait;
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int irq;
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int softirq;
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int steal;
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int guest;
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int guestNice;
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int totalIdle() const {
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return idle + iowait;
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}
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int totalActive() const {
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return user + nice + system + irq + softirq + steal + guest + guestNice;
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}
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};
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struct NetworkStats {
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std::string interface;
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int64_t receiveBytes = 0;
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int64_t transmitBytes = 0;
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std::chrono::system_clock::time_point time = std::chrono::system_clock::now();
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};
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SystemUsage(boost::asio::io_context &ioContext, const std::string &accessToken);
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void start();
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protected:
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void publish(const std::string_view &deviceName, float value, const std::string_view &unit,
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const std::string_view &friendlyName);
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CpuStats readCpuData();
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float cpuUsage(const CpuStats &first, const CpuStats &second);
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float diskUsage(const std::string &disk);
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NetworkStats networkStats(const std::string &interface);
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private:
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boost::asio::io_context &m_ioContext;
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std::shared_ptr<boost::asio::system_timer> m_timer;
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std::string m_accessToken;
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CpuStats m_lastCpuStats;
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std::list<NetworkStats> m_networkStats;
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};
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#endif // __SYSTEMUSAGE_H__
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