/*
 * Copyright 2007, Ingo Weinhold, ingo_weinhold@gmx.de.
 * All rights reserved. Distributed under the terms of the MIT license.
 */
#ifndef ENTRY_ITERATOR_H
#define ENTRY_ITERATOR_H

#include <SupportDefs.h>

#include <util/DoublyLinkedList.h>

class Directory;
class Entry;

class EntryIterator : public DoublyLinkedListLinkImpl<EntryIterator> {
public:
        EntryIterator(Directory *directory = NULL);
        ~EntryIterator();

        status_t SetTo(Directory *directory);
        void Unset();

        Directory *GetDirectory() const { return fDirectory; }

        status_t Suspend();
        status_t Resume();
        bool IsSuspended() const { return fSuspended; }

        status_t GetNext(Entry **entry);
        Entry *GetCurrent() const { return fEntry; }

        status_t Rewind();

private:
        void SetCurrent(Entry *entry, bool isNext);

private:
        friend class Directory;

private:
        Directory                                       *fDirectory;
        Entry                                           *fEntry;
        bool                                            fSuspended;
        bool                                            fIsNext;
        bool                                            fDone;
};

#endif  // ENTRY_ITERATOR_H