/*
 * SQUID Web Proxy Cache          http://www.squid-cache.org/
 * ----------------------------------------------------------
 *
 *  Squid is the result of efforts by numerous individuals from
 *  the Internet community; see the CONTRIBUTORS file for full
 *  details.   Many organizations have provided support for Squid's
 *  development; see the SPONSORS file for full details.  Squid is
 *  Copyrighted (C) 2001 by the Regents of the University of
 *  California; see the COPYRIGHT file for full details.  Squid
 *  incorporates software developed and/or copyrighted by other
 *  sources; see the CREDITS file for full details.
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
 *
 */

#ifndef SQUID_FS_UFS_STORESEARCHUFS_H
#define SQUID_FS_UFS_STORESEARCHUFS_H

#include "StoreSearch.h"
#include "UFSSwapDir.h"

namespace Fs
{
namespace Ufs
{

/// \ingroup UFS
class StoreSearchUFS : public StoreSearch
{
public:
    StoreSearchUFS(RefCount<UFSSwapDir> sd);
    virtual ~StoreSearchUFS();

    /** \todo Iterator API - garh, wrong place */
    /**
     * callback the client when a new StoreEntry is available
     * or an error occurs
     */
    virtual void next(void (callback)(void *cbdata), void *cbdata);

    /**
     \retval true if a new StoreEntry is immediately available
     \retval false if a new StoreEntry is NOT immediately available
     */
    virtual bool next();

    virtual bool error() const;
    virtual bool isDone() const;
    virtual StoreEntry *currentItem();

    RefCount<UFSSwapDir> sd;
    RemovalPolicyWalker *walker;

private:
    CBDATA_CLASS2(StoreSearchUFS);
    /// \bug (callback) should be hidden behind a proper human readable name
    void (callback)(void *cbdata);
    void *cbdata;
    StoreEntry * current;
    bool _done;

    StoreSearchUFS(StoreSearchUFS const &); //disabled
    StoreSearchUFS& operator=(StoreSearchUFS const &); //disabled
    StoreSearchUFS(); //disabled
};

} //namespace Ufs
} //namespace Fs
#endif /* SQUID_FS_UFS_STORESEARCHUFS_H */