headers/private/storage/FileIO.h

   1 /*
   2  * Copyright 2009-2010, Ingo Weinhold, ingo_weinhold@gmx.de.
   3  * Distributed under the terms of the MIT License.
   4  */
   5 #ifndef _FILE_IO_H
   6 #define _FILE_IO_H
   7
   8
   9 #include <stdio.h>
  10
  11 #include <DataIO.h>
  12
  13
  14 class BFileIO : public BPositionIO {
  15 public:
  16                                                                 BFileIO(FILE* file,
  17                                                                         bool takeOverOwnership = false);
  18         virtual                                         ~BFileIO();
  19
  20         virtual ssize_t                         Read(void *buffer, size_t size);
  21         virtual ssize_t                         Write(const void *buffer, size_t size);
  22
  23         virtual ssize_t                         ReadAt(off_t position, void *buffer,
  24                                                                         size_t size);
  25         virtual ssize_t                         WriteAt(off_t position, const void *buffer,
  26                                                                         size_t size);
  27
  28         virtual off_t                           Seek(off_t position, uint32 seekMode);
  29         virtual off_t                           Position() const;
  30
  31         virtual status_t                        SetSize(off_t size);
  32         virtual status_t                        GetSize(off_t* size) const;
  33
  34 private:
  35                                                                 BFileIO(const BFileIO& other);
  36                         BFileIO&                        operator=(const BFileIO& other);
  37
  38                         off_t                           _Seek(off_t position, uint32 seekMode) const;
  39
  40 private:
  41                         FILE*                           fFile;
  42                         bool                            fOwnsFile;
  43 };
  44
  45
  46 #endif  // _FILE_IO_H