rainmeter-studio/Library/MeasureCPU.h

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/*
Copyright (C) 2001 Kimmo Pekkola
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifndef __MEASURECPU_H__
#define __MEASURECPU_H__
#include "Measure.h"
typedef struct _SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION {
LARGE_INTEGER IdleTime;
LARGE_INTEGER KernelTime;
LARGE_INTEGER UserTime;
LARGE_INTEGER Reserved1[2];
ULONG Reserved2;
} SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION, *PSYSTEM_PROCESSOR_PERFORMANCE_INFORMATION;
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typedef LONG (WINAPI *PROCNTQSI)(UINT,PVOID,ULONG,PULONG);
typedef BOOL (WINAPI *PROCGST)(LPFILETIME lpIdleTime, LPFILETIME lpKernelTime, LPFILETIME lpUserTime);
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class CMeasureCPU : public CMeasure
{
public:
CMeasureCPU(CMeterWindow* meterWindow);
virtual ~CMeasureCPU();
virtual void ReadConfig(CConfigParser& parser, const WCHAR* section);
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virtual bool Update();
protected:
void CalcUsage(double idleTime, double systemTime);
void CalcAverageUsage(SYSTEM_PROCESSOR_PERFORMANCE_INFORMATION* systemPerfInfo);
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bool m_CPUFromRegistry;
bool m_FirstTime;
int m_Processor;
int m_NumOfProcessors;
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PROCNTQSI m_NtQuerySystemInformation;
PROCGST m_GetSystemTimes;
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std::vector<double> m_OldTime;
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};
#endif