RTSPCacheStrategy.h

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/* Copyright (C) 2000 KOM/Darmstadt University of Technology
 *
 * You are allowed to use all other parts of the code under the following terms:
 *
 * For non-commercial use, code may be used in unmodified form provided
 * that this copyright notice and this permission notice appear in
 * supporting documentation.
 *
 * This software is provided "as is" and without any express or implied
 * warranties, including, without limitation, the implied warranty of
 * fitness for a particular purpose.
 *
 * The code may be subjected to the GNU General Public License, Version 2,
 * and re-distributed under the terms of this license.
 * As a special exception, permission is granted to link this code
 * with the Qt library and distribute executables, as long as you
 * follow the requirements of the GNU GPL in regard to all of the
 * software in the executable aside from Qt.
 *
 * Commercial use other than under the terms of the GNU General Public
 * License is allowed only after express negotiation of conditions
 * with the authors.
 */

#ifndef RTSP_CACHE_STRATEGY_H
#define RTSP_CACHE_STRATEGY_H

class RTSPCacheDir;


class RTSPCacheStrategy
{
    int           _global_hits;

    int           _global_misses;

    RTSPCacheDir* _CacheDir; 
public:
    RTSPCacheStrategy();

    RTSPCacheStrategy( RTSPCacheDir* cdir );
    virtual ~RTSPCacheStrategy();

    virtual bool isWorthCaching( const MNString& URL, int64_t& file_size );
    virtual bool isWorthCaching( int idx, const MNString& URL, int64_t& file_size );

    virtual void cacheHit( const MNString& URL );
    virtual void cacheMiss( const MNString& URL );
    
    void log_hit( );
    void log_miss( );

    int  gethits( );
    int  getmisses( );

    RTSPCacheDir* getCacheDir( );
    static RTSPCacheStrategy* factory( RTSPCacheDir* cdir ); 
};

#endif /*RTSP_CACHE_STRATEGY_H*/

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