1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
|
/* <!-- 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 --> */
#include "TorrentDownloadEngine.h"
#include "Util.h"
#include "BtRegistry.h"
TorrentDownloadEngine::TorrentDownloadEngine():
filenameFixed(false),
btContext(0),
btRuntime(0),
pieceStorage(0),
peerStorage(0),
btAnnounce(0),
btProgressInfoFile(0) {}
TorrentDownloadEngine::~TorrentDownloadEngine() {
}
void TorrentDownloadEngine::setBtContext(const BtContextHandle& btContext) {
this->btContext = btContext;
btRuntime = BT_RUNTIME(btContext);
pieceStorage = PIECE_STORAGE(btContext);
peerStorage = PEER_STORAGE(btContext);
btAnnounce = BT_ANNOUNCE(btContext);
btProgressInfoFile = BT_PROGRESS_INFO_FILE(btContext);
}
void TorrentDownloadEngine::onEndOfRun() {
pieceStorage->getDiskAdaptor()->closeFile();
if(pieceStorage->allDownloadFinished()) {
btProgressInfoFile->removeFile();
} else {
btProgressInfoFile->save();
}
}
void TorrentDownloadEngine::initStatistics() {
downloadSpeed = 0;
uploadSpeed = 0;
cp.reset();
startup.reset();
eta = 0;
avgSpeed = 0;
downloadLength = 0;
uploadLength = 0;
totalLength = 0;
}
int TorrentDownloadEngine::calculateSpeed(long long int length, int elapsed) {
int nowSpeed = (int)(length/elapsed);
return nowSpeed;
}
void TorrentDownloadEngine::calculateStat() {
TransferStat stat = peerStorage->calculateStat();
if(pieceStorage->isSelectiveDownloadingMode()) {
downloadLength = pieceStorage->getFilteredCompletedLength();
totalLength = pieceStorage->getFilteredTotalLength();
} else {
downloadLength = pieceStorage->getCompletedLength();
totalLength = pieceStorage->getTotalLength();
}
uploadLength = stat.getSessionUploadLength()+
btRuntime->getUploadLengthAtStartup();
downloadSpeed = stat.getDownloadSpeed();
uploadSpeed = stat.getUploadSpeed();
avgSpeed = calculateSpeed(stat.getSessionDownloadLength(),
startup.difference());
if(avgSpeed < 0) {
avgSpeed = 0;
} else if(avgSpeed != 0) {
eta = (totalLength-downloadLength)/avgSpeed;
}
}
void TorrentDownloadEngine::calculateStatistics() {
if(cp.difference() >= 1) {
calculateStat();
sendStatistics();
cp.reset();
}
}
|
