transfer.cpp

Last change: 2008-02-03 This is the source code of KCeasy。

/*
This file is part of KCeasy (http://www.kceasy.com)
Copyright (C) 2002-2004 Markus Kern <[e-mail]>

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.
*/
//---------------------------------------------------------------------------
#pragma hdrstop
#include "Transfer.h"
//---------------------------------------------------------------------------
#pragma package(smart_init)

namespace KCeasyEngine {

TThroughput::TThroughput()
{
    Reset();
}

void TThroughput::Reset()
{
    CurrentThroughput = 0;
    SampleIndex = 0;
    for(int i=0;i<SampleCacheSize;++i)
        Samples[i] = 0;
}

void TThroughput::SetBps(unsigned int Bps)
{
    Reset();
    CurrentThroughput = Bps;
}

void TThroughput::AddSample(unsigned int Bps)
{
    Samples[SampleIndex++] = Bps;
    if(SampleIndex >= SampleCacheSize)
        SampleIndex = 0;
    // calculate throughput
    CurrentThroughput = 0;
    for(int i=0;i<SampleCacheSize;++i)
        CurrentThroughput += Samples[i];
    CurrentThroughput /= SampleCacheSize;
}

void TThroughput::AddSample(unsigned int Size, unsigned int Time)
{
    if (Time > 0)
        AddSample(((double)Size)*1000/(double)Time);
}

} // namespace KCeasyEngine