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/***************************************************************************
* 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. *
***************************************************************************/
#ifndef BTCHUNKCOUNTER_H
#define BTCHUNKCOUNTER_H
#include <util/constants.h>
#include <util/array.h>
namespace bt
{
class BitSet;
/**
* @author Joris Guisson
*
* Class to keep track of how many peers have a chunk.
*/
class ChunkCounter
{
Array<Uint32> cnt;
public:
ChunkCounter(Uint32 num_chunks);
virtual ~ChunkCounter();
/**
* If a bit in the bitset is one, increment the corresponding counter.
* @param bs The BitSet
*/
void incBitSet(const BitSet & bs);
/**
* If a bit in the bitset is one, decrement the corresponding counter.
* @param bs The BitSet
*/
void decBitSet(const BitSet & bs);
/**
* Increment the counter for the idx'th chunk
* @param idx Index of the chunk
*/
void inc(Uint32 idx);
/**
* Decrement the counter for the idx'th chunk
* @param idx Index of the chunk
*/
void dec(Uint32 idx);
/**
* Get the counter for the idx'th chunk
* @param idx Index of the chunk
*/
Uint32 get(Uint32 idx) const;
/**
* Reset all values to 0
*/
void reset();
};
}
#endif
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