chert_databasereplicator.h

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/* Copyright 2008 Lemur Consulting Ltd
 * Copyright 2010 Richard Boulton
 * Copyright 2010,2011 Olly Betts
 *
 * 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., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301
 * USA
 */

#ifndef XAPIAN_INCLUDED_CHERT_DATABASEREPLICATOR_H
#define XAPIAN_INCLUDED_CHERT_DATABASEREPLICATOR_H

#include "backends/databasereplicator.h"

class ChertDatabaseReplicator : public Xapian::DatabaseReplicator {
    private:
        std::string db_dir;

        unsigned int max_changesets;

        void process_changeset_chunk_base(const std::string & tablename,
                                          std::string & buf,
                                          RemoteConnection & conn,
                                          double end_time,
                                          int changes_fd) const;

        void process_changeset_chunk_blocks(const std::string & tablename,
                                            std::string & buf,
                                            RemoteConnection & conn,
                                            double end_time,
                                            int changes_fd) const;

    public:
        explicit ChertDatabaseReplicator(const std::string & db_dir_);

        bool check_revision_at_least(const std::string & rev,
                                     const std::string & target) const;
        std::string apply_changeset_from_conn(RemoteConnection & conn,
                                              double end_time,
                                              bool valid) const;
        std::string get_uuid() const;
};

#endif /* XAPIAN_INCLUDED_CHERT_DATABASEREPLICATOR_H */