glass_databasereplicator.h

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/* Copyright 2008 Lemur Consulting Ltd
 * Copyright 2009,2010,2011,2014 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_GLASS_DATABASEREPLICATOR_H
#define XAPIAN_INCLUDED_GLASS_DATABASEREPLICATOR_H

#include "backends/databasereplicator.h"
#include "glass_defs.h"

class GlassDatabaseReplicator : public Xapian::DatabaseReplicator {
    std::string db_dir;

    mutable int fds[Glass::MAX_];

    void process_changeset_chunk_version(std::string & buf,
                                         RemoteConnection & conn,
                                         double end_time) const;

    void process_changeset_chunk_blocks(Glass::table_type table,
                                        unsigned v,
                                        std::string & buf,
                                        RemoteConnection & conn,
                                        double end_time) const;

    void commit() const;

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

    ~GlassDatabaseReplicator();

    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_GLASS_DATABASEREPLICATOR_H */