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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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
*/

#ifndef __MEASURECPU_H__
#define __MEASURECPU_H__

#include "Measure.h"

typedef LONG (WINAPI *PROCNTQSI)(UINT,PVOID,ULONG,PULONG);

class CMeasureCPU : public CMeasure
{
public:
CMeasureCPU(CMeterWindow* meterWindow, const WCHAR* name);
virtual ~CMeasureCPU();

virtual UINT GetTypeID() { return TypeID<CMeasureCPU>(); }

protected:
virtual void ReadOptions(CConfigParser& parser, const WCHAR* section);
virtual void UpdateValue();

private:
void CalcUsage(double idleTime, double systemTime);

int m_Processor;

double m_OldTime[2];

static PROCNTQSI c_NtQuerySystemInformation;

static int c_NumOfProcessors;
static ULONG c_BufferSize;
};

#endif
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