cachemethod.h

Go to the documentation of this file.

#ifndef TPPROTO_CACHEMETHOD_H
#define TPPROTO_CACHEMETHOD_H
/*  CacheMethod - Methods of caching Frames base class
 *
 *  Copyright (C) 2006, 2008  Lee Begg and the Thousand Parsec Project
 *
 *  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  02111-1307  USA
 *
 */

#include <map>
#include <set>
#include <boost/signal.hpp>

namespace TPProto{

    class Frame;
    class Cache;
    class ProtocolLayer;
    
    typedef boost::signal<void (std::set<uint32_t>)> IdSetSignal;
    typedef IdSetSignal::slot_type IdSetCallback;

    class CacheMethod{
    public:
    CacheMethod();
    CacheMethod(const CacheMethod& rhs);
    virtual ~CacheMethod();

    virtual void update() = 0;

    void setCache(Cache* c);

    void setProtocolLayer(ProtocolLayer* pl);

    virtual void getById(uint32_t id) = 0;

    virtual void markInvalid(uint32_t id) = 0;

    void getAllIds(const IdSetCallback& cb);
    
    boost::signals::connection watchAllIds(const IdSetCallback& cb);

    virtual CacheMethod* clone() = 0;

    protected:
        virtual void getIdList() = 0;
        void newIdList(std::set<uint32_t> list);
        void existingList(std::set<uint32_t> list);
        
    Cache* cache;

    ProtocolLayer* protocol;
    
    IdSetSignal waiters;
    IdSetSignal watchers;

    };

}

#endif

---