JSWINDOW.H

// --jswindow.h----------------------------------------------------------------- 
//  
//  Defines Jump Sliding Window object. 
// 
// Copyright (C) Microsoft Corp. 1986-1996.  All Rights Reserved. 
// ----------------------------------------------------------------------------- 
 
#ifndef __jswindow_h 
#define __jswindow_h 
 
#include <windows.h> 
#include "fifo.h" 
 
//$--CJSWindow------------------------------------------------------------------ 
// Defines the Jump Slide base class. Other kinds of Jump Slide windows 
// are derived from this class. 
// ----------------------------------------------------------------------------- 
class CJSWindow 
{ 
public: 
    CJSWindow (); 
    virtual ~CJSWindow (); 
    virtual HRESULT HrReset(IN __int64 liNow, IN __int64 liResolution, IN DWORD dwWindowDuration); 
    virtual VOID DataPoint(IN __int64 liNow, IN DWORD dwValue) = 0; 
    virtual HRESULT HrGetValue(IN __int64 liNow, OUT DWORD &dwValue, DWORD &dwFractionCompleteNum, DWORD &dwFractionCompleteDen) = 0; 
 
    VOID AdvanceToNow(IN __int64 liNow, OUT DWORD &dwFIFOOut, OUT BOOL &fAdvanced); 
 
    __int64 m_liCurrentIntervalTimeStart; 
    __int64 m_liResolution; 
    CFIFO m_FIFO; 
    DWORD m_dwIntervalValue; 
}; 
 
 
//$--CJSWindowMin--------------------------------------------------------------- 
// Defines the Jump Slide window that determines the minimum value for a period. 
// Derived from the CJSWindow Base Class. 
// ----------------------------------------------------------------------------- 
class CJSWindowMin : public CJSWindow 
{ 
public: 
    VOID DataPoint(IN __int64 liNow, IN DWORD dwValue); 
    HRESULT HrGetValue(IN __int64 liNow, OUT DWORD &dwValue, DWORD &dwFractionCompleteNum, OUT DWORD &dwFractionCompleteDen); 
}; 
 
 
//$--CJSWindowMax--------------------------------------------------------------- 
// Defines the Jump Slide window that determines the maximum value for a period. 
// Derived from the CJSWindow Base Class. 
// ----------------------------------------------------------------------------- 
class CJSWindowMax : public CJSWindow 
{ 
public: 
    VOID DataPoint(IN __int64 liNow, IN DWORD dwValue); 
    HRESULT HrGetValue(IN __int64 liNow, OUT DWORD &dwValue, DWORD &dwFractionCompleteNum, DWORD &dwFractionCompleteDen); 
}; 
 
 
//$--CJSWindowAverage------------------------------------------------------------ 
// Defines the Jump Slide window that determines the average value for a period. 
// Derived from the CJSWindow Base Class. 
// ----------------------------------------------------------------------------- 
class CJSWindowAverage : public CJSWindow 
{ 
public: 
    HRESULT HrReset(IN __int64 liNow, IN __int64 liResolution, IN DWORD dwWindowDuration); 
    VOID DataPoint(IN __int64 liNow, IN DWORD dwValue); 
    HRESULT HrGetValue(IN __int64 liNow, OUT DWORD &dwValue, DWORD &dwFractionCompleteNum, DWORD &dwFractionCompleteDen); 
 
private: 
    DWORD m_dwIntervalTotal; 
    DWORD m_cIntervalValues; 
}; 
 
 
//$--CJSWindowTotal-------------------------------------------------------------- 
// Defines the Jump Slide window that determines the total value for a period. 
// Derived from the CJSWindow Base Class. 
// ----------------------------------------------------------------------------- 
class CJSWindowTotal : public CJSWindow 
{ 
public: 
    HRESULT HrReset(IN __int64 liNow, IN __int64 liResolution, IN DWORD dwWindowDuration); 
    VOID DataPoint(IN __int64 liNow, IN DWORD dwValue); 
    HRESULT HrGetValue(IN __int64 liNow, OUT DWORD &dwValue, OUT DWORD &dwFractionCompleteNum, OUT DWORD &dwFractionCompleteDen); 
 
private: 
    DWORD m_dwWindowTotal; 
}; 
 
#endif