src/system/boot/loader/file_systems/fat/Directory.h

   1 /*
   2 ** Copyright 2003, Axel Dörfler, axeld@pinc-software.de. All rights reserved.
   3 ** Distributed under the terms of the MIT License.
   4 */
   5 #ifndef DIRECTORY_H
   6 #define DIRECTORY_H
   7
   8
   9 #include "fatfs.h"
  10 #include "Stream.h"
  11
  12 #include <boot/vfs.h>
  13
  14
  15 namespace FATFS {
  16
  17 struct dir_entry;
  18 class Volume;
  19
  20 class Directory : public ::Directory {
  21         public:
  22                 Directory();
  23                 Directory(Volume &volume, off_t dirEntryOffset, uint32 cluster,
  24                         const char *name);
  25                 virtual ~Directory();
  26
  27                 status_t InitCheck();
  28
  29                 off_t DirEntryOffset() const    { return fDirEntryOffset; }
  30
  31                 virtual status_t Open(void **_cookie, int mode);
  32                 virtual status_t Close(void *cookie);
  33
  34                 virtual Node* LookupDontTraverse(const char* name);
  35
  36                 virtual status_t GetNextEntry(void *cookie, char *nameBuffer, size_t bufferSize);
  37                 virtual status_t GetNextNode(void *cookie, Node **_node);
  38                 virtual status_t Rewind(void *cookie);
  39                 virtual bool IsEmpty();
  40
  41                 virtual status_t GetName(char *name, size_t size) const;
  42                 virtual ino_t Inode() const;
  43
  44                 virtual status_t CreateFile(const char *name, mode_t permissions,
  45                         Node **_node);
  46
  47                 static status_t UpdateDirEntry(Volume& volume, off_t dirEntryOffset,
  48                         uint32 firstCluster, uint32 size);
  49
  50         private:
  51                 status_t GetNextEntry(void *cookie,
  52                                 uint8 mask = FAT_VOLUME, uint8 match = 0);
  53                 status_t _AddEntry(dir_entry& entry, off_t& _entryOffset);
  54                 off_t _GetStreamSize();
  55
  56                 Volume                  &fVolume;
  57                 Stream                  fStream;
  58                 off_t                   fDirEntryOffset;
  59
  60                 typedef ::Directory _inherited;
  61 };
  62
  63 }       // namespace FATFS
  64
  65 #endif  /* DIRECTORY_H */