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Diffstat (limited to 'apps/ktcachecheck/multicachechecker.cpp')
| -rw-r--r-- | apps/ktcachecheck/multicachechecker.cpp | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/apps/ktcachecheck/multicachechecker.cpp b/apps/ktcachecheck/multicachechecker.cpp new file mode 100644 index 0000000..df80535 --- /dev/null +++ b/apps/ktcachecheck/multicachechecker.cpp @@ -0,0 +1,143 @@ +/*************************************************************************** + * Copyright (C) 2005 by Joris Guisson * + * joris.guisson@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 <util/log.h> +#include <util/file.h> +#include <util/error.h> +#include <util/array.h> +#include <util/functions.h> +#include <torrent/globals.h> +#include <torrent/torrent.h> +#include <torrent/chunkmanager.h> +#include "multicachechecker.h" + +using namespace bt; + +namespace ktdebug +{ + + MultiCacheChecker::MultiCacheChecker(bt::Torrent& tor): CacheChecker(tor) + {} + + + MultiCacheChecker::~MultiCacheChecker() + {} + + + void MultiCacheChecker::check(const QString& cache_dir, const QString& index) + { + loadIndex(index); + QString cache = cache_dir; + if (!cache.endsWith(bt::DirSeparator())) + cache += bt::DirSeparator(); + + Uint32 num_chunks = tor.getNumChunks(); + Uint64 curr_file_off = 0; + Uint32 curr_file = 0; + Uint64 chunk_size = tor.getChunkSize(); + + Array<Uint8> buf((Uint32)tor.getChunkSize()); + Uint32 num_ok = 0,num_not_ok = 0,num_not_downloaded = 0,extra_ok = 0; + + for (Uint32 i = 0;i < num_chunks;i++) + { + if (i % 100 == 0) + Out() << "Checked " << i << " chunks" << endl; + + + + Uint64 size = chunk_size; + if (i == tor.getNumChunks() - 1 && tor.getFileLength() % chunk_size != 0) + size = tor.getFileLength() % chunk_size; + + //Out() << "Loading chunk (size = " << size << ")" << endl; + Uint64 bytes_offset = 0; + while (bytes_offset < size) + { + TorrentFile & tf = tor.getFile(curr_file); +// Out() << "Current file : " << tf.getPath() << " (" << curr_file << ")" << endl; + Uint64 to_read = size - bytes_offset; +// Out() << "to_read = " << to_read << endl; + if (to_read <= tf.getSize() - curr_file_off) + { + // we can read the chunk from this file + File fptr; + if (!fptr.open(cache + tf.getPath(),"rb")) + throw Error(QString("Cannot open %1 : %2").arg(cache + tf.getPath()).arg(fptr.errorString())); + + fptr.seek(File::BEGIN,curr_file_off); + fptr.read(buf + bytes_offset,to_read); + bytes_offset += to_read; + curr_file_off += to_read; + } + else + { + + // read partially the data which can be read + to_read = tf.getSize() - curr_file_off; +// Out() << "Partially reading " << to_read << endl; + File fptr; + if (!fptr.open(cache + tf.getPath(),"rb")) + throw Error(QString("Cannot open %1 : %2").arg(cache + tf.getPath()).arg(fptr.errorString())); + + fptr.seek(File::BEGIN,curr_file_off); + fptr.read(buf + bytes_offset,to_read); + bytes_offset += to_read; + // update curr_file and offset + curr_file++; + curr_file_off = 0; + } + } // end file reading while + + // calculate hash and check it + SHA1Hash h = SHA1Hash::generate(buf,size); + if (h != tor.getHash(i)) + { + if (downloaded_chunks.count(i) == 0) + { + num_not_downloaded++; + continue; + } + Out() << "Chunk " << i << " Failed :" << endl; + Out() << "\tShould be : " << tor.getHash(i).toString() << endl; + Out() << "\tIs : " << h.toString() << endl; + num_not_ok++; + failed_chunks.insert(i); + } + else + { + if (downloaded_chunks.count(i) == 0) + { + extra_ok++; + extra_chunks.insert(i); + continue; + } + num_ok++; + } + } + + Out() << "Cache Check Summary" << endl; + Out() << "===================" << endl; + Out() << "Extra Chunks : " << extra_ok << endl; + Out() << "Chunks OK : " << num_ok << endl; + Out() << "Chunks Not Downloaded : " << num_not_downloaded << endl; + Out() << "Chunks Failed : " << num_not_ok << endl; + } + +} |