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82 lines
2.3 KiB
82 lines
2.3 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/sha1hash.h>
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#include "chunk.h"
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#include "globals.h"
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namespace bt
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{
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Chunk::Chunk(unsigned int index,Uint32 size)
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: status(Chunk::NOT_DOWNLOADED),index(index),
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data(0),size(size),ref_count(0),priority(NORMAL_PRIORITY)
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{
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}
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Chunk::~Chunk()
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{
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clear();
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}
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void Chunk::setData(Uint8* d,Status nstatus)
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{
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clear();
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status = nstatus;
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data = d;
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}
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void Chunk::allocate()
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{
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clear();
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status = BUFFERED;
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data = new Uint8[size];
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}
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void Chunk::clear()
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{
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if (data)
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{
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if (status == BUFFERED)
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delete [] data;
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data = 0;
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}
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}
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void Chunk::unmapped()
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{
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setData(0,Chunk::ON_DISK);
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}
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bool Chunk::checkHash(const SHA1Hash & h) const
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{
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if (status != BUFFERED && status != MMAPPED)
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{
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return false;
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}
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else
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{
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return SHA1Hash::generate(data,size) == h;
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}
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}
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}
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