// $Id$
//
// Copyright (C) 2006
// Fraunhofer Institute for Open Communication Systems (FOKUS)
// Competence Center NETwork research (NET), St. Augustin, GERMANY
//     Stefan Bund <g0dil@berlios.de>
//
// 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.

/** \file
    \brief PacketRegistry internal header */

#ifndef IH_PacketRegistryImpl_
#define IH_PacketRegistryImpl_ 1

// Custom includes
#include <boost/intrusive_ptr.hpp>
#include "../Utils/TypeIdValue.hh"

///////////////////////////////ih.p////////////////////////////////////////

namespace senf {
namespace detail {
    
    /** \brief Internal: Registry entry implementation for a specific packet type

        \internal
     */
    template <class PacketType>
    struct PkReg_EntryImpl
        : public PkReg_Entry
    {
        virtual Packet::factory_t factory() const;
    };

    /** \brief Internal: Singleton class implementing the packet registry.

        \internal
     */
    template <class KeyType>
    class PacketRegistryImpl 
        : private boost::noncopyable
    {
    public:
        ///////////////////////////////////////////////////////////////////////////
        // Types

        typedef KeyType key_t;

        typedef PkReg_Entry Entry;

        ///////////////////////////////////////////////////////////////////////////
        ///\name Structors and default members
        ///@{

        // default default constructor
        // no copy constructor
        // no copy assignment
        // default destructor
        // no conversion constructors

        ///@}
        ///////////////////////////////////////////////////////////////////////////

        template <class PacketType>
        void registerPacket(key_t key);

        key_t key(senf::TypeIdValue const & type);
        boost::optional<key_t> key(senf::TypeIdValue const & type, bool);

        Entry const & lookup(key_t key);
        Entry const * lookup(key_t key, bool);

    protected:

    private:
        typedef boost::intrusive_ptr<Entry> Entry_ptr;
        typedef std::map<key_t, Entry_ptr> PacketMap;
        typedef std::map<senf::TypeIdValue, key_t> ReversePacketMap;

        PacketMap registry_;
        ReversePacketMap reverseRegistry_;
    };

}}

///////////////////////////////ih.e////////////////////////////////////////
#endif


// Local Variables:
// mode: c++
// fill-column: 100
// c-file-style: "senf"
// indent-tabs-mode: nil
// ispell-local-dictionary: "american"
// compile-command: "scons -u test"
// comment-column: 40
// End: