src/add-ons/kernel/file_systems/ramfs/Directory.h

   1 // Directory.h
   2
   3 #ifndef DIRECTORY_H
   4 #define DIRECTORY_H
   5
   6 #include <util/DoublyLinkedList.h>
   7
   8 #include "Node.h"
   9
  10
  11 class Entry;
  12 class File;
  13 class SymLink;
  14
  15 class Directory : public Node {
  16 public:
  17         Directory(Volume *volume);
  18         virtual ~Directory();
  19
  20         virtual status_t Link(Entry *entry);
  21         virtual status_t Unlink(Entry *entry);
  22
  23         virtual status_t SetSize(off_t newSize);
  24         virtual off_t GetSize() const;
  25
  26         Directory *GetParent() const;
  27
  28         status_t CreateDirectory(const char *name, Directory **directory);
  29         status_t CreateFile(const char *name, File **file);
  30         status_t CreateSymLink(const char *name, const char *path,
  31                                                    SymLink **symLink);
  32
  33         bool IsEmpty() const { return fEntries.IsEmpty(); }
  34
  35         status_t AddEntry(Entry *entry);
  36         status_t CreateEntry(Node *node, const char *name, Entry **entry = NULL);
  37         status_t RemoveEntry(Entry *entry);
  38         status_t DeleteEntry(Entry *entry);
  39
  40         status_t FindEntry(const char *name, Entry **entry) const;
  41         status_t FindNode(const char *name, Node **node) const;
  42         status_t FindAndGetNode(const char *name, Node **node,
  43                                                         Entry **entry = NULL) const;
  44
  45         status_t GetPreviousEntry(Entry **entry) const;
  46         status_t GetNextEntry(Entry **entry) const;
  47
  48         // debugging
  49         virtual void GetAllocationInfo(AllocationInfo &info);
  50
  51 private:
  52         status_t _CreateCommon(Node *node, const char *name);
  53
  54 private:
  55         DoublyLinkedList<Entry> fEntries;
  56 };
  57
  58 #endif  // DIRECTORY_H