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/*
Minetest
Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 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 Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#ifndef DATABASE_SQLITE3_HEADER
#define DATABASE_SQLITE3_HEADER
#include "database.h"
#include <string>
extern "C" {
#include "sqlite3.h"
}
class Database_SQLite3 : public Database
{
public:
Database_SQLite3(const std::string &savedir);
~Database_SQLite3();
void beginSave();
void endSave();
bool saveBlock(const v3s16 &pos, const std::string &data);
void loadBlock(const v3s16 &pos, std::string *block);
bool deleteBlock(const v3s16 &pos);
void listAllLoadableBlocks(std::vector<v3s16> &dst);
bool initialized() const { return m_initialized; }
private:
// Open the database
void openDatabase();
// Create the database structure
void createDatabase();
// Open and initialize the database if needed
void verifyDatabase();
void bindPos(sqlite3_stmt *stmt, const v3s16 &pos, int index=1);
bool m_initialized;
std::string m_savedir;
sqlite3 *m_database;
sqlite3_stmt *m_stmt_read;
sqlite3_stmt *m_stmt_write;
sqlite3_stmt *m_stmt_list;
sqlite3_stmt *m_stmt_delete;
sqlite3_stmt *m_stmt_begin;
sqlite3_stmt *m_stmt_end;
s64 m_busy_handler_data[2];
static int busyHandler(void *data, int count);
};
#endif
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