transfercalculator.h

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/*
 *  Openmysee
 *
 *  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.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */
// TransferCalculator.h: interface for the TransferCalculator class.
//
//////////////////////////////////////////////////////////////////////

#if !defined(AFX_TRANSFERCALCULATOR_H__50A3D1EA_D5EA_47AF_B58C_415D0F7BBE61__INCLUDED_)
#define AFX_TRANSFERCALCULATOR_H__50A3D1EA_D5EA_47AF_B58C_415D0F7BBE61__INCLUDED_

#if _MSC_VER > 1000
#pragma once
#endif // _MSC_VER > 1000

class TransferCalculator
{
public:
	TransferCalculator();
	~TransferCalculator();
	void GenerateTransferInfo(BOOL calAvg);
	void GetTransferInfo(TransferInfo& ti);
	void ClearTransferInfo();

	void AddOutgoingBytes(int i) {totalUpBytes += i;};
	void AddIncomingBytes(int i) {totalDownBytes += i;};
	float GetCurDownSpeed() {return currDownSpeed;};
protected:
    LONGLONG totalDownBytes;  // 总共下载字节
    LONGLONG totalUpBytes;    // 总共上传字节
    float    currDownSpeed;   // 当前下载速度
    float    currUpSpeed;     // 当前上传速度
    float    avgDownSpeed;    // 平均下载速度
    float    avgUpSpeed;      // 平均上传速度

private:
	/*****用于计算全部下载的状况*****/
	DWORD totalstartTime;

	/*****用于计算最近一段时间内的下载/上传速度*****/
	DWORD tmpStartTime;
	LONGLONG tmpOldDownBytes;
	LONGLONG tmpOldUpBytes;
};

#endif // !defined(AFX_TRANSFERCALCULATOR_H__50A3D1EA_D5EA_47AF_B58C_415D0F7BBE61__INCLUDED_)