aria2/src/SpeedCalc.h
Tatsuhiro Tsujikawa d7155e8f6c 2007-06-20 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com>
Reduce the number of calls to gettimeofday to lower CPU load.
	* src/TimeA2.h, src/TimeA2.cc (differenceInMillis): New 
function.
	* src/SpeedCalc.h, src/SpeedCalc.cc (calculateSpeed): New 
function.
	* src/Peer.h (calculateUploadSpeed): New function.
	(calculateDownloadSpeed): New function.
	* src/DefaultPeerStorage.cc
	(CalculateStat): Added _now variable.
	In operator(), call Peer::calculateDownloadSpeed(const struct 
timeval&)
	and Peer::calculateUploadSpeed(const struct timeval&)
	
	Drop connection if no request or piece message is exchanged in
	a certain interval.
	* src/DefaultBtInteractive.h
	(btRuntime): New variable.
	(inactiveCheckPoint): New variable.
	(checkActiveInteraction): New function.
	* src/DefaultBtInteractive.cc (receiveMessages): Reset timer 
when
	request or piece message is received.
	(checkActiveInteraction): New function.
	(doInteractionProcessing): Call checkActiveInteraction.

	Fixed the bug that causes remote Metalink and Torrent files are 
not
	processed.
	* src/MultiUrlRequestInfo.cc (createNextRequestInfo): Fixed the 
bug.
2007-06-20 14:43:34 +00:00

80 lines
2.3 KiB
C++

/* <!-- copyright */
/*
* aria2 - The high speed download utility
*
* Copyright (C) 2006 Tatsuhiro Tsujikawa
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* In addition, as a special exception, the copyright holders give
* permission to link the code of portions of this program with the
* OpenSSL library under certain conditions as described in each
* individual source file, and distribute linked combinations
* including the two.
* You must obey the GNU General Public License in all respects
* for all of the code used other than OpenSSL. If you modify
* file(s) with this exception, you may extend this exception to your
* version of the file(s), but you are not obligated to do so. If you
* do not wish to do so, delete this exception statement from your
* version. If you delete this exception statement from all source
* files in the program, then also delete it here.
*/
/* copyright --> */
#ifndef _D_SPEED_CALC_H_
#define _D_SPEED_CALC_H_
#include "common.h"
#include "TimeA2.h"
class SpeedCalc {
private:
int64_t lengthArray[2];
int32_t sw;
Time cpArray[2];
int32_t maxSpeed;
int32_t prevSpeed;
Time start;
int64_t accumulatedLength;
int32_t nextInterval;
bool isIntervalOver() const;
void changeSw();
public:
SpeedCalc() {
reset();
}
~SpeedCalc() {}
/**
* Returns download/upload speed in byte per sec
*/
int32_t calculateSpeed();
int32_t calculateSpeed(const struct timeval& now);
int32_t getMaxSpeed() const {
return maxSpeed;
}
int32_t getAvgSpeed() const;
void update(int bytes);
void reset();
};
#endif // _D_SPEED_CALC_H_