/*
 * Copyright 2011, Haiku Inc. All rights reserved.
 * This file may be used under the terms of the MIT License.
 *
 * Authors:
 *              Jérôme Duval
 *              Chế Vũ Gia Hy
 */
#ifndef CHUNK_H
#define CHUNK_H


#include "btrfs.h"


//! Used to translate logical addresses to physical addresses
class Chunk {
public:
                                                                Chunk(btrfs_chunk* chunk,
                                                                        fsblock_t offset);
                                                                ~Chunk();
                        //! \return Value of current physical size
                        uint32                          Size() const;
                        //! Used to convert logical addresses into physical addresses
                        status_t                        FindBlock(off_t logical, off_t& physical);
                        fsblock_t                       Offset() const { return fChunkOffset; }
                        fsblock_t                       End() const
                                                                        { return fChunkOffset + fChunk->Length(); }
private:
                        btrfs_chunk*    fChunk;
                        fsblock_t                       fChunkOffset;
                        status_t                        fInitStatus;
};

#endif  // CHUNK_H