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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 <cstring>
#include <string>
#include "database.h"
#include "exceptions.h"
extern "C" {
#include "sqlite3.h"
}
class Database_SQLite3 : public Database
{
public:
virtual ~Database_SQLite3();
void beginSave();
void endSave();
bool initialized() const { return m_initialized; }
protected:
Database_SQLite3(const std::string &savedir, const std::string &dbname);
// Open and initialize the database if needed
void verifyDatabase();
// Convertors
inline void str_to_sqlite(sqlite3_stmt *s, int iCol, const std::string &str) const
{
sqlite3_vrfy(sqlite3_bind_text(s, iCol, str.c_str(), str.size(), NULL));
}
inline void str_to_sqlite(sqlite3_stmt *s, int iCol, const char *str) const
{
sqlite3_vrfy(sqlite3_bind_text(s, iCol, str, strlen(str), NULL));
}
inline void int_to_sqlite(sqlite3_stmt *s, int iCol, int val) const
{
sqlite3_vrfy(sqlite3_bind_int(s, iCol, val));
}
inline void int64_to_sqlite(sqlite3_stmt *s, int iCol, s64 val) const
{
sqlite3_vrfy(sqlite3_bind_int64(s, iCol, (sqlite3_int64) val));
}
inline void double_to_sqlite(sqlite3_stmt *s, int iCol, double val) const
{
sqlite3_vrfy(sqlite3_bind_double(s, iCol, val));
}
inline std::string sqlite_to_string(sqlite3_stmt *s, int iCol)
{
const char* text = reinterpret_cast<const char*>(sqlite3_column_text(s, iCol));
return std::string(text ? text : "");
}
inline s32 sqlite_to_int(sqlite3_stmt *s, int iCol)
{
return sqlite3_column_int(s, iCol);
}
inline u32 sqlite_to_uint(sqlite3_stmt *s, int iCol)
{
return (u32) sqlite3_column_int(s, iCol);
}
inline float sqlite_to_float(sqlite3_stmt *s, int iCol)
{
return (float) sqlite3_column_double(s, iCol);
}
inline const v3f sqlite_to_v3f(sqlite3_stmt *s, int iCol)
{
return v3f(sqlite_to_float(s, iCol), sqlite_to_float(s, iCol + 1),
sqlite_to_float(s, iCol + 2));
}
// Query verifiers helpers
inline void sqlite3_vrfy(int s, const std::string &m = "", int r = SQLITE_OK) const
{
if (s != r)
throw DatabaseException(m + ": " + sqlite3_errmsg(m_database));
}
inline void sqlite3_vrfy(const int s, const int r, const std::string &m = "") const
{
sqlite3_vrfy(s, m, r);
}
// Create the database structure
virtual void createDatabase() = 0;
virtual void initStatements() = 0;
sqlite3 *m_database = nullptr;
private:
// Open the database
void openDatabase();
bool m_initialized = false;
std::string m_savedir = "";
std::string m_dbname = "";
sqlite3_stmt *m_stmt_begin = nullptr;
sqlite3_stmt *m_stmt_end = nullptr;
s64 m_busy_handler_data[2];
static int busyHandler(void *data, int count);
};
class MapDatabaseSQLite3 : private Database_SQLite3, public MapDatabase
{
public:
MapDatabaseSQLite3(const std::string &savedir);
virtual ~MapDatabaseSQLite3();
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);
void beginSave() { Database_SQLite3::beginSave(); }
void endSave() { Database_SQLite3::endSave(); }
protected:
virtual void createDatabase();
virtual void initStatements();
private:
void bindPos(sqlite3_stmt *stmt, const v3s16 &pos, int index = 1);
// Map
sqlite3_stmt *m_stmt_read = nullptr;
sqlite3_stmt *m_stmt_write = nullptr;
sqlite3_stmt *m_stmt_list = nullptr;
sqlite3_stmt *m_stmt_delete = nullptr;
};
class PlayerDatabaseSQLite3 : private Database_SQLite3, public PlayerDatabase
{
public:
PlayerDatabaseSQLite3(const std::string &savedir);
virtual ~PlayerDatabaseSQLite3();
void savePlayer(RemotePlayer *player);
bool loadPlayer(RemotePlayer *player, PlayerSAO *sao);
bool removePlayer(const std::string &name);
void listPlayers(std::vector<std::string> &res);
protected:
virtual void createDatabase();
virtual void initStatements();
private:
bool playerDataExists(const std::string &name);
// Players
sqlite3_stmt *m_stmt_player_load = nullptr;
sqlite3_stmt *m_stmt_player_add = nullptr;
sqlite3_stmt *m_stmt_player_update = nullptr;
sqlite3_stmt *m_stmt_player_remove = nullptr;
sqlite3_stmt *m_stmt_player_list = nullptr;
sqlite3_stmt *m_stmt_player_load_inventory = nullptr;
sqlite3_stmt *m_stmt_player_load_inventory_items = nullptr;
sqlite3_stmt *m_stmt_player_add_inventory = nullptr;
sqlite3_stmt *m_stmt_player_add_inventory_items = nullptr;
sqlite3_stmt *m_stmt_player_remove_inventory = nullptr;
sqlite3_stmt *m_stmt_player_remove_inventory_items = nullptr;
sqlite3_stmt *m_stmt_player_metadata_load = nullptr;
sqlite3_stmt *m_stmt_player_metadata_remove = nullptr;
sqlite3_stmt *m_stmt_player_metadata_add = nullptr;
};
#endif
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