src/add-ons/kernel/file_systems/exfat/DataStream.h

   1 /*
   2  * Copyright 2011, Haiku Inc. All rights reserved.
   3  * This file may be used under the terms of the MIT License.
   4  *
   5  * Authors:
   6  *              Jérôme Duval
   7  */
   8 #ifndef DATASTREAM_H
   9 #define DATASTREAM_H
  10
  11
  12 #include "exfat.h"
  13 #include "Inode.h"
  14
  15
  16 class Volume;
  17
  18
  19 class DataStream
  20 {
  21 public:
  22                                                                 DataStream(Volume* volume, Inode* inode,
  23                                                                         off_t size);
  24                                                                 ~DataStream();
  25
  26                         status_t                        FindBlock(off_t pos, off_t& physical,
  27                                                                         off_t *_length = NULL);
  28 private:
  29                         const uint32            kBlockSize;
  30                         const uint32            kClusterSize;
  31                         Volume*                         fVolume;
  32                         Inode*                          fInode;
  33                         off_t                           fNumBlocks;
  34                         off_t                           fSize;
  35 };
  36
  37 #endif  // DATASTREAM_H
  38