mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
106 lines
2.6 KiB
106 lines
2.6 KiB
//+----------------------------------------------------------------------------
|
|
//
|
|
// File: IdleStat.cpp
|
|
//
|
|
// Module: CMMON32.EXE
|
|
//
|
|
// Synopsis: Implementation of class CIdleStatistics
|
|
//
|
|
// Copyright (c) 1998-1999 Microsoft Corporation
|
|
//
|
|
// Author: Fengsun Created 10/01/97
|
|
//
|
|
//+----------------------------------------------------------------------------
|
|
|
|
#include "cmmaster.h"
|
|
#include "IdleStat.h"
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// CIdleStatistics::Start()
|
|
//
|
|
// Synopsis: Start the idle statistics
|
|
//
|
|
// Arguments: dwThreshold: The idle threshold. Traffic in a minute Less than
|
|
// the threshold is considered idle
|
|
// dwTimeOut: Idle time out in minisecond
|
|
//
|
|
// History: fengsun created on 10/1/97
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
|
|
void CIdleStatistics::Start(DWORD dwThreshold, DWORD dwTimeOut)
|
|
{
|
|
MYDBGASSERT(dwTimeOut != 0);
|
|
|
|
m_dwThreshold = dwThreshold;
|
|
m_dwTimeOut = dwTimeOut;
|
|
m_dwStartIdleTime = 0;
|
|
|
|
m_DataPointsRing.Reset();
|
|
}
|
|
|
|
//+---------------------------------------------------------------------------
|
|
//
|
|
// CIdleStatistics::UpdateEveryInterval()
|
|
//
|
|
// Synopsis: This function should be call every Interval with a updated statistic
|
|
//
|
|
// Arguments: dwTraffic: the updated statistics
|
|
//
|
|
//
|
|
// History: fengsun created on 10/1/97
|
|
//
|
|
//----------------------------------------------------------------------------
|
|
void CIdleStatistics::UpdateEveryInterval(DWORD dwTraffic)
|
|
{
|
|
DWORD dwLast = m_DataPointsRing.GetOldest();
|
|
|
|
m_DataPointsRing.Add(dwTraffic);
|
|
|
|
if (dwLast == 0) // Started less than a minute
|
|
{
|
|
return;
|
|
}
|
|
|
|
if (dwTraffic - dwLast > m_dwThreshold)
|
|
{
|
|
//
|
|
// Not idle
|
|
//
|
|
m_dwStartIdleTime = 0;
|
|
}
|
|
else
|
|
{
|
|
if (m_dwStartIdleTime == 0)
|
|
{
|
|
//
|
|
// We are already idle for 1 minute
|
|
//
|
|
m_dwStartIdleTime = GetTickCount() - IDLE_INTERVAL;
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
#ifdef DEBUG
|
|
//+----------------------------------------------------------------------------
|
|
//
|
|
// Function: CIdleStatistics::AssertValid
|
|
//
|
|
// Synopsis: For debug purpose only, assert the object is valid
|
|
//
|
|
// Arguments: None
|
|
//
|
|
// Returns: Nothing
|
|
//
|
|
// History: Created Header 2/12/98
|
|
//
|
|
//+----------------------------------------------------------------------------
|
|
void CIdleStatistics::AssertValid() const
|
|
{
|
|
MYDBGASSERT(m_dwTimeOut <10000*60*1000); // less than 10000 minutes
|
|
MYDBGASSERT(m_dwThreshold <= 64*1024);
|
|
ASSERT_VALID(&m_DataPointsRing);
|
|
}
|
|
#endif
|