145af882dSJérôme Duval /* 2*d482c34eSJérôme Duval * Copyright 2001-2011, Haiku Inc. All rights reserved. 345af882dSJérôme Duval * This file may be used under the terms of the MIT License. 445af882dSJérôme Duval * 545af882dSJérôme Duval * Authors: 645af882dSJérôme Duval * Jérôme Duval 745af882dSJérôme Duval */ 845af882dSJérôme Duval #ifndef EXTENTSTREAM_H 945af882dSJérôme Duval #define EXTENTSTREAM_H 1045af882dSJérôme Duval 11*d482c34eSJérôme Duval 1245af882dSJérôme Duval #include "ext2.h" 1345af882dSJérôme Duval #include "Transaction.h" 1445af882dSJérôme Duval 1545af882dSJérôme Duval 1645af882dSJérôme Duval class Volume; 1745af882dSJérôme Duval 1845af882dSJérôme Duval 1945af882dSJérôme Duval class ExtentStream 2045af882dSJérôme Duval { 2145af882dSJérôme Duval public: 2245af882dSJérôme Duval ExtentStream(Volume* volume, ext2_extent_stream* stream, 2345af882dSJérôme Duval off_t size); 2445af882dSJérôme Duval ~ExtentStream(); 2545af882dSJérôme Duval 2645af882dSJérôme Duval status_t FindBlock(off_t offset, fsblock_t& block, 2745af882dSJérôme Duval uint32 *_count = NULL); 2845af882dSJérôme Duval status_t Enlarge(Transaction& transaction, off_t& numBlocks); 2945af882dSJérôme Duval status_t Shrink(Transaction& transaction, off_t& numBlocks); 3045af882dSJérôme Duval void Init(); 3145af882dSJérôme Duval 3245af882dSJérôme Duval bool Check(); 3345af882dSJérôme Duval 3445af882dSJérôme Duval private: 3545af882dSJérôme Duval status_t _Check(ext2_extent_stream *stream, fileblock_t &block); 3645af882dSJérôme Duval status_t _CheckBlock(ext2_extent_stream *stream, fsblock_t block); 3745af882dSJérôme Duval 3845af882dSJérôme Duval Volume* fVolume; 3945af882dSJérôme Duval ext2_extent_stream* fStream; 4045af882dSJérôme Duval fsblock_t fFirstBlock; 4145af882dSJérôme Duval 4245af882dSJérôme Duval fsblock_t fAllocatedPos; 4345af882dSJérôme Duval 4445af882dSJérôme Duval off_t fNumBlocks; 4545af882dSJérôme Duval off_t fSize; 4645af882dSJérôme Duval }; 4745af882dSJérôme Duval 4845af882dSJérôme Duval #endif // EXTENTSTREAM_H 4945af882dSJérôme Duval 50