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
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
|
/***************************************************************************
* Copyright (C) 2005 by Joris Guisson & Maggioni Marcello *
* joris.guisson@gmail.com *
* marcello.maggioni@gmail.com *
* *
* 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. *
***************************************************************************/
#include <klocale.h>
#include <kapplication.h>
#include <util/log.h>
#include <util/file.h>
#include <util/fileops.h>
#include <util/error.h>
#include <util/array.h>
#include <util/functions.h>
#include <torrent/dndfile.h>
#include <torrent/globals.h>
#include <torrent/torrent.h>
#include <torrent/torrentfile.h>
#include "multidatachecker.h"
namespace bt
{
MultiDataChecker::MultiDataChecker(): DataChecker(),buf(0)
{}
MultiDataChecker::~MultiDataChecker()
{
delete [] buf;
}
void MultiDataChecker::check(const TQString& path, const Torrent& tor,const TQString & dnddir)
{
Uint32 num_chunks = tor.getNumChunks();
// initialize the bitsets
downloaded = BitSet(num_chunks);
failed = BitSet(num_chunks);
cache = path;
if (!cache.endsWith(bt::DirSeparator()))
cache += bt::DirSeparator();
dnd_dir = dnddir;
if (!dnddir.endsWith(bt::DirSeparator()))
dnd_dir += bt::DirSeparator();
Uint64 chunk_size = tor.getChunkSize();
Uint32 cur_chunk = 0;
TimeStamp last_update_time = bt::GetCurrentTime();
buf = new Uint8[chunk_size];
for (cur_chunk = 0;cur_chunk < num_chunks;cur_chunk++)
{
Uint32 cs = (cur_chunk == num_chunks - 1) ? tor.getFileLength() % chunk_size : chunk_size;
if (cs == 0)
cs = chunk_size;
if (!loadChunk(cur_chunk,cs,tor))
{
downloaded.set(cur_chunk,false);
failed.set(cur_chunk,true);
continue;
}
bool ok = (SHA1Hash::generate(buf,cs) == tor.getHash(cur_chunk));
downloaded.set(cur_chunk,ok);
failed.set(cur_chunk,!ok);
if (listener)
{
listener->status(failed.numOnBits(),downloaded.numOnBits());
listener->progress(cur_chunk,num_chunks);
if (listener->needToStop())
return;
}
TimeStamp now = bt::GetCurrentTime();
if (now - last_update_time > 1000)
{
Out() << "Checked " << cur_chunk << " chunks" << endl;
// KApplication::kApplication()->processEvents();
last_update_time = now;
}
}
}
static Uint32 ReadFullChunk(Uint32 chunk,Uint32 cs,
const TorrentFile & tf,
const Torrent & tor,
Uint8* buf,
const TQString & cache)
{
File fptr;
if (!fptr.open(cache + tf.getPath(), "rb"))
{
Out() << TQString("Warning : Cannot open %1 : %2").arg(cache +
tf.getPath()).arg(fptr.errorString()) << endl;
return 0;
}
Uint64 off = tf.fileOffset(chunk,tor.getChunkSize());
fptr.seek(File::BEGIN,off);
return fptr.read(buf,cs);
}
bool MultiDataChecker::loadChunk(Uint32 ci,Uint32 cs,const Torrent & tor)
{
TQValueList<Uint32> tflist;
tor.calcChunkPos(ci,tflist);
// one file is simple
if (tflist.count() == 1)
{
const TorrentFile & f = tor.getFile(tflist.first());
if (!f.doNotDownload())
{
ReadFullChunk(ci,cs,f,tor,buf,cache);
return true;
}
return false;
}
Uint64 read = 0; // number of bytes read
for (Uint32 i = 0;i < tflist.count();i++)
{
const TorrentFile & f = tor.getFile(tflist[i]);
// first calculate offset into file
// only the first file can have an offset
// the following files will start at the beginning
Uint64 off = 0;
if (i == 0)
off = f.fileOffset(ci,tor.getChunkSize());
Uint32 to_read = 0;
// then the amount of data we can read from this file
if (i == 0)
to_read = f.getLastChunkSize();
else if (i == tflist.count() - 1)
to_read = cs - read;
else
to_read = f.getSize();
// read part of data
if (f.doNotDownload())
{
if (!dnd_dir.isNull() && bt::Exists(dnd_dir + f.getPath() + ".dnd"))
{
Uint32 ret = 0;
DNDFile dfd(dnd_dir + f.getPath() + ".dnd");
if (i == 0)
ret = dfd.readLastChunk(buf,read,cs);
else if (i == tflist.count() - 1)
ret = dfd.readFirstChunk(buf,read,cs);
else
ret = dfd.readFirstChunk(buf,read,cs);
if (ret > 0 && ret != to_read)
Out() << "Warning : MultiDataChecker::load ret != to_read (dnd)" << endl;
}
}
else
{
if (!bt::Exists(cache + f.getPath()) || bt::FileSize(cache + f.getPath()) < off)
return false;
File fptr;
if (!fptr.open(cache + f.getPath(), "rb"))
{
Out() << TQString("Warning : Cannot open %1 : %2").arg(cache +
f.getPath()).arg(fptr.errorString()) << endl;
return false;
}
else
{
fptr.seek(File::BEGIN,off);
if (fptr.read(buf+read,to_read) != to_read)
Out() << "Warning : MultiDataChecker::load ret != to_read" << endl;
}
}
read += to_read;
}
return true;
}
}
|
