SystemInformation.h

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#pragma once
 
#include "OTSystem/SystemAPIExport.h"
#include "OTSystem/SystemTypes.h"
 
#include <pdh.h>
 
#include <string>
 
#undef GetObject
 
#pragma warning (disable:4251)
 
namespace ot {
 
    class OT_SYS_API_EXPORT SystemInformation {
    public:
        SystemInformation();
        virtual ~SystemInformation();
 
        void initialize();
 
        void getGlobalCPUAndMemoryLoad(double& cpuLoad, double& memoryLoad);
 
        void getCurrentProcessCPUAndMemoryLoad(double& cpuLoad, double& memoryLoad);
 
        std::string getBuildInformation();
 
    private:
        bool m_initialized;
        PDH_HQUERY m_cpuQuery;
        PDH_HCOUNTER m_cpuTotal;
        ULARGE_INTEGER m_lastCPU, m_lastSysCPU, m_lastUserCPU;
        int m_numProcessors;
        HANDLE m_self;
    };
}