1 files changed, 83 insertions, 0 deletions
diff --git a/libktorrent/torrent/chunkcounter.h b/libktorrent/torrent/chunkcounter.h
new file mode 100644
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+++ b/libktorrent/torrent/chunkcounter.h
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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