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104 lines
3.4 KiB
104 lines
3.4 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 <klocale.h>
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#include <kapplication.h>
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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 "singledatachecker.h"
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namespace bt
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{
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SingleDataChecker::SingleDataChecker(): DataChecker()
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{}
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SingleDataChecker::~SingleDataChecker()
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{}
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void SingleDataChecker::check(const TQString& path, const Torrent& tor,const TQString &)
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{
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// open the file
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Uint32 num_chunks = tor.getNumChunks();
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Uint32 chunk_size = tor.getChunkSize();
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File fptr;
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if (!fptr.open(path,"rb"))
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{
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throw Error(i18n("Cannot open file : %1 : %2")
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.arg(path).arg( fptr.errorString()));
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}
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// initialize the bitsets
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downloaded = BitSet(num_chunks);
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failed = BitSet(num_chunks);
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TimeStamp last_update_time = bt::GetCurrentTime();
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// loop over all chunks
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Array<Uint8> buf(chunk_size);
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for (Uint32 i = 0;i < num_chunks;i++)
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{
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if (listener)
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{
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listener->progress(i,num_chunks);
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if (listener->needToStop()) // if we need to stop just return
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return;
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}
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TimeStamp now = bt::GetCurrentTime();
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if (now - last_update_time > 1000)
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{
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Out(SYS_DIO|LOG_DEBUG) << "Checked " << i << " chunks" << endl;
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last_update_time = now;
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}
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if (!fptr.eof())
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{
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// read the chunk
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Uint32 size = i == num_chunks - 1 && tor.getFileLength() % tor.getChunkSize() > 0 ?
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tor.getFileLength() % tor.getChunkSize() : (Uint32)tor.getChunkSize();
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fptr.seek(File::BEGIN,(Int64)i*tor.getChunkSize());
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fptr.read(buf,size);
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// generate and test hash
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SHA1Hash h = SHA1Hash::generate(buf,size);
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bool ok = (h == tor.getHash(i));
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downloaded.set(i,ok);
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failed.set(i,!ok);
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}
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else
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{
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// at end of file so set to default values for a failed chunk
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downloaded.set(i,false);
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failed.set(i,true);
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}
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if (listener)
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listener->status(failed.numOnBits(),downloaded.numOnBits());
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}
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}
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}
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