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144 lines
4.8 KiB
144 lines
4.8 KiB
/***************************************************************************
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* Copyright (C) 2005 by Joris Guisson *
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* joris.guisson@gmail.com *
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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* This program is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU General Public License for more details. *
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* *
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* You should have received a copy of the GNU General Public License *
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* along with this program; if not, write to the *
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* Free Software Foundation, Inc., *
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
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***************************************************************************/
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#include <util/log.h>
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#include <util/file.h>
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#include <util/error.h>
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#include <util/array.h>
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#include <util/functions.h>
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#include <torrent/globals.h>
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#include <torrent/torrent.h>
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#include <torrent/chunkmanager.h>
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#include "multicachechecker.h"
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using namespace bt;
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namespace ktdebug
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{
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MultiCacheChecker::MultiCacheChecker(bt::Torrent& tor): CacheChecker(tor)
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{}
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MultiCacheChecker::~MultiCacheChecker()
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{}
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void MultiCacheChecker::check(const TQString& cache_dir, const TQString& index)
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{
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loadIndex(index);
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TQString cache = cache_dir;
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if (!cache.endsWith(bt::DirSeparator()))
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cache += bt::DirSeparator();
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Uint32 num_chunks = tor.getNumChunks();
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Uint64 curr_file_off = 0;
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Uint32 curr_file = 0;
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Uint64 chunk_size = tor.getChunkSize();
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Array<Uint8> buf((Uint32)tor.getChunkSize());
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Uint32 num_ok = 0,num_not_ok = 0,num_not_downloaded = 0,extra_ok = 0;
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for (Uint32 i = 0;i < num_chunks;i++)
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{
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if (i % 100 == 0)
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Out() << "Checked " << i << " chunks" << endl;
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Uint64 size = chunk_size;
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if (i == tor.getNumChunks() - 1 && tor.getFileLength() % chunk_size != 0)
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size = tor.getFileLength() % chunk_size;
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//Out() << "Loading chunk (size = " << size << ")" << endl;
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Uint64 bytes_offset = 0;
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while (bytes_offset < size)
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{
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TorrentFile & tf = tor.getFile(curr_file);
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// Out() << "Current file : " << tf.getPath() << " (" << curr_file << ")" << endl;
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Uint64 to_read = size - bytes_offset;
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// Out() << "to_read = " << to_read << endl;
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if (to_read <= tf.getSize() - curr_file_off)
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{
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// we can read the chunk from this file
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File fptr;
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if (!fptr.open(cache + tf.getPath(),"rb"))
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throw Error(TQString("Cannot open %1 : %2").tqarg(cache + tf.getPath()).tqarg(fptr.errorString()));
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fptr.seek(File::BEGIN,curr_file_off);
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fptr.read(buf + bytes_offset,to_read);
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bytes_offset += to_read;
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curr_file_off += to_read;
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}
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else
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{
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// read partially the data which can be read
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to_read = tf.getSize() - curr_file_off;
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// Out() << "Partially reading " << to_read << endl;
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File fptr;
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if (!fptr.open(cache + tf.getPath(),"rb"))
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throw Error(TQString("Cannot open %1 : %2").tqarg(cache + tf.getPath()).tqarg(fptr.errorString()));
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fptr.seek(File::BEGIN,curr_file_off);
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fptr.read(buf + bytes_offset,to_read);
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bytes_offset += to_read;
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// update curr_file and offset
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curr_file++;
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curr_file_off = 0;
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}
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} // end file reading while
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// calculate hash and check it
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SHA1Hash h = SHA1Hash::generate(buf,size);
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if (h != tor.getHash(i))
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{
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if (downloaded_chunks.count(i) == 0)
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{
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num_not_downloaded++;
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continue;
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}
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Out() << "Chunk " << i << " Failed :" << endl;
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Out() << "\tShould be : " << tor.getHash(i).toString() << endl;
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Out() << "\tIs : " << h.toString() << endl;
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num_not_ok++;
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failed_chunks.insert(i);
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}
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else
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{
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if (downloaded_chunks.count(i) == 0)
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{
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extra_ok++;
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extra_chunks.insert(i);
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continue;
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}
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num_ok++;
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}
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}
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Out() << "Cache Check Summary" << endl;
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Out() << "===================" << endl;
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Out() << "Extra Chunks : " << extra_ok << endl;
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Out() << "Chunks OK : " << num_ok << endl;
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Out() << "Chunks Not Downloaded : " << num_not_downloaded << endl;
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Out() << "Chunks Failed : " << num_not_ok << endl;
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}
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}
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