src/tools/restest/OffsetFile.h

   1 // OffsetFile.h
   2
   3 #ifndef OFFSET_FILE_H
   4 #define OFFSET_FILE_H
   5
   6 #include <DataIO.h>
   7 #include <File.h>
   8
   9 class OffsetFile : public BPositionIO {
  10 public:
  11                                                                 OffsetFile();
  12                                                                 OffsetFile(const BFile& file, off_t offset);
  13         virtual                                         ~OffsetFile();
  14
  15                         status_t                        SetTo(const BFile& file, off_t offset);
  16                         void                            Unset();
  17                         status_t                        InitCheck() const;
  18
  19 //                      ssize_t                         Read(void *buffer, size_t size);
  20 //                      ssize_t                         Write(const void *buffer, size_t size);
  21                         ssize_t                         ReadAt(off_t pos, void *buffer, size_t size);
  22                         ssize_t                         WriteAt(off_t pos, const void *buffer,
  23                                                                                 size_t size);
  24                         off_t                           Seek(off_t position, uint32 seekMode);
  25                         off_t                           Position() const;
  26                         status_t                        SetSize(off_t size);
  27                         status_t                        GetSize(off_t* size);
  28
  29                         off_t                           GetOffset() const;
  30
  31 private:
  32                         BFile                           fFile;
  33                         off_t                           fOffset;
  34                         off_t                           fCurrentPosition;
  35 };
  36
  37 #endif  // OFFSET_FILE_H