src/bin/makeudfimage/ExtentStream.h

   1 //----------------------------------------------------------------------
   2 //  This software is part of the OpenBeOS distribution and is covered
   3 //  by the MIT License.
   4 //
   5 //  Copyright (c) 2003 Tyler Dauwalder, tyler@dauwalder.net
   6 //----------------------------------------------------------------------
   7
   8 /*! \file ExtentStream.h
   9 */
  10
  11 #ifndef _EXTENT_STREAM_H
  12 #define _EXTENT_STREAM_H
  13
  14 #include <list>
  15
  16 #include "SimulatedStream.h"
  17 #include "UdfStructures.h"
  18
  19 /*! \brief SimulatedStream implementation that takes a list of
  20         block-aligned data extents.
  21 */
  22 class ExtentStream : public SimulatedStream {
  23 public:
  24         ExtentStream(DataStream &stream, const std::list<Udf::extent_address> &extentList, uint32 blockSize);
  25
  26 protected:
  27         virtual status_t _GetExtent(off_t pos, size_t size, data_extent &extent);
  28         virtual off_t _Size();
  29
  30 private:
  31         const std::list<Udf::extent_address> &fExtentList;
  32         const uint32 fBlockSize;
  33         off_t fSize;
  34 };
  35
  36 #endif  // _EXTENT_STREAM_H