www.pudn.com > IOCP_Server.rar > CpuUsage.h

// CpuUsage.h: interface for the CCpuUsage class. 
// 
////////////////////////////////////////////////////////////////////// 
 
#if !defined(AFX_CPUUSAGE_H__60CF4F03_9F01_41E8_A9FB_51F065D5F3C2__INCLUDED_) 
#define AFX_CPUUSAGE_H__60CF4F03_9F01_41E8_A9FB_51F065D5F3C2__INCLUDED_ 
 
#if _MSC_VER > 1000 
#pragma once 
#endif // _MSC_VER > 1000 
 
#include  
#include  
 
#pragma comment(lib,"PDH.lib") 
 
 
#define MAX_RAW_VALUES          20 
 
const char szCounterName[] = "\\Processor(_Total)\\% Processor Time"; 
 
typedef struct _tag_PDHCounterStruct { 
    HCOUNTER hCounter;      // Handle to the counter - given to use by PDH Library 
    int nNextIndex;         // element to get the next raw value 
    int nOldestIndex;       // element containing the oldes raw value 
    int nRawCount;          // number of elements containing raw values 
    PDH_RAW_COUNTER a_RawValue[MAX_RAW_VALUES]; // Ring buffer to contain raw values 
} PDHCOUNTERSTRUCT, *PPDHCOUNTERSTRUCT; 
 
 
class CCpuUsage   
{ 
public: 
	CCpuUsage(); 
	virtual ~CCpuUsage(); 
	BOOL	Init(); 
	int GetUsage(); 
 
protected: 
 
	PPDHCOUNTERSTRUCT			m_pCounterStruct; 
	HQUERY						m_hQuery; 
 
 
}; 
 
#endif // !defined(AFX_CPUUSAGE_H__60CF4F03_9F01_41E8_A9FB_51F065D5F3C2__INCLUDED_)