kea/src/lib/datasrc/memory/zone_data.h

// Copyright (C) 2012  Internet Systems Consortium, Inc. ("ISC")
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
// REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
// AND FITNESS.  IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
// INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
// LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
// OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
// PERFORMANCE OF THIS SOFTWARE.

#ifndef DATASRC_MEMORY_ZONE_DATA_H
#define DATASRC_MEMORY_ZONE_DATA_H 1

#include <util/memory_segment.h>

#include <dns/name.h>

#include <datasrc/memory/domaintree.h>
#include <datasrc/memory/rdataset.h>

#include <boost/interprocess/offset_ptr.hpp>
#include <boost/noncopyable.hpp>

namespace isc {
namespace datasrc {
namespace memory {

class ZoneData : boost::noncopyable {
    struct RdataSetDeleter {
    public:
        RdataSetDeleter() {}
        void operator()(util::MemorySegment& /*mem_sgmt*/,
                        RdataSet* /*rdataset_head*/) const
        {}
    };
    typedef DomainTree<RdataSet, RdataSetDeleter> ZoneTree;
    typedef DomainTreeNode<RdataSet, RdataSetDeleter> ZoneNode;

    ZoneData(ZoneTree* zone_tree, ZoneNode* origin_node) :
        zone_tree_(zone_tree), origin_node_(origin_node)
    {}

public:
    static ZoneData* create(util::MemorySegment& mem_sgmt,
                            const dns::Name& zone_name);
    static void destroy(util::MemorySegment& mem_sgmt, ZoneData* zone_data);
    const ZoneNode* getOriginNode() const {
        return (origin_node_.get());
    }

private:
    const boost::interprocess::offset_ptr<ZoneTree> zone_tree_;
    const boost::interprocess::offset_ptr<ZoneNode> origin_node_;
};

} // namespace memory
} // namespace datasrc
} // namespace isc

#endif // DATASRC_MEMORY_ZONE_DATA_H

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