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

   1 // LastModifiedIndex.h
   2
   3 #ifndef LAST_MODIFIED_INDEX_H
   4 #define LAST_MODIFIED_INDEX_H
   5
   6 #include "Index.h"
   7 #include "NodeListener.h"
   8 #include "TwoKeyAVLTree.h"
   9
  10 // LastModifiedIndex
  11 class LastModifiedIndex : public Index, private NodeListener {
  12 public:
  13         LastModifiedIndex(Volume *volume);
  14         virtual ~LastModifiedIndex();
  15
  16         virtual int32 CountEntries() const;
  17
  18         virtual status_t Changed(Node *node, time_t oldModified);
  19
  20 private:
  21         virtual void NodeAdded(Node *node);
  22         virtual void NodeRemoved(Node *node);
  23
  24 protected:
  25         virtual AbstractIndexEntryIterator *InternalGetIterator();
  26         virtual AbstractIndexEntryIterator *InternalFind(const uint8 *key,
  27                                                                                                          size_t length);
  28
  29 private:
  30         class Iterator;
  31         class IteratorList;
  32         class NodeTree;
  33         friend class Iterator;
  34
  35 private:
  36         void _AddIterator(Iterator *iterator);
  37         void _RemoveIterator(Iterator *iterator);
  38
  39 private:
  40         NodeTree                *fNodes;
  41         IteratorList    *fIterators;
  42 };
  43
  44 #endif  // LAST_MODIFIED_INDEX_H