92 lines
1.8 KiB
C++
92 lines
1.8 KiB
C++
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#include "inspch.h"
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#include "timetrak.h"
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#define NUMBYTESFORUPDATE 200000
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#define DECAY_FACTOR 85
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CTimeTracker::CTimeTracker(DWORD dwDefaultRate)
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{
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m_hasave = FALSE;
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m_defaultrate = dwDefaultRate;
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m_bTiming = FALSE;
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m_dwBytesSoFar = 0;
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m_dwTicksSoFar = 0;
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}
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CTimeTracker::~CTimeTracker()
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{
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}
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void CTimeTracker::AddEntry(DWORD dwTime, DWORD dwBytes, BOOL bAccumulate)
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{
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DWORD dwBPS;
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m_dwBytesSoFar += dwBytes;
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m_dwTicksSoFar += dwTime;
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if(m_dwBytesSoFar > NUMBYTESFORUPDATE || !bAccumulate)
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{
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if(m_dwBytesSoFar < 4000000)
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dwBPS = (m_dwBytesSoFar * 1000) / m_dwTicksSoFar;
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else if (m_dwTicksSoFar > 20000)
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dwBPS = m_dwBytesSoFar / (m_dwTicksSoFar / 1000);
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else
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dwBPS = (m_dwBytesSoFar/m_dwTicksSoFar)*1000;
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if(!m_hasave)
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{
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m_ave = dwBPS;
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m_hasave = TRUE;
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}
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else
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{
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m_ave = ((dwBPS * (100 - DECAY_FACTOR)) + (m_ave * DECAY_FACTOR))/100;
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}
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m_dwBytesSoFar = 0;
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m_dwTicksSoFar = 0;
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}
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}
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DWORD CTimeTracker::GetBytesPerSecond()
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{
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if(!m_hasave)
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return m_defaultrate;
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else
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return m_ave;
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}
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void CTimeTracker::StartClock()
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{
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m_dwStartTick = GetTickCount();
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m_bTiming = TRUE;
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}
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void CTimeTracker::StopClock()
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{
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m_bTiming = FALSE;
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}
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void CTimeTracker::SetBytes(DWORD dwBytes, BOOL bAccumulate)
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{
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DWORD dwTickChange;
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DWORD dwCurrentTick;
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if(!m_bTiming)
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return;
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dwCurrentTick = GetTickCount();
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dwTickChange = dwCurrentTick - m_dwStartTick;
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if(m_dwStartTick > dwCurrentTick)
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dwTickChange -= 0xffffffff;
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if(dwTickChange != 0)
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AddEntry(dwTickChange, dwBytes, bAccumulate);
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m_dwStartTick = dwCurrentTick;
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}
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