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/** @file glass_databasereplicator.h
* @brief Support for glass database replication
*/
/* 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 {
private:
/** Path of database.
*/
std::string db_dir;
/** File descriptors for writing to each table.
*
* The corresponding entry is -1 if that table is not yet opened.
*/
mutable int fds[Glass::MAX_];
/** Process a chunk which holds a version file.
*/
void process_changeset_chunk_version(std::string & buf,
RemoteConnection & conn,
double end_time) const;
/** Process a chunk which holds a list of changed blocks in the
* database.
*/
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();
/** Virtual methods of DatabaseReplicator. */
//@{
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 */
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