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authororwell96 <orwell@bleipb.de>2020-01-04 18:37:52 +0100
committerorwell96 <orwell@bleipb.de>2020-01-04 18:37:52 +0100
commitdbaafeda3e02d2ffafc60e5486e5aab39b643b3d (patch)
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parentc0c6fcf00b7da9ae179ae070664b0655c10c37c5 (diff)
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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.
*/

#pragma once

#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 s64 sqlite_to_int64(sqlite3_stmt *s, int iCol)
	{
		return (s64) sqlite3_column_int64(s, iCol);
	}

	inline u64 sqlite_to_uint64(sqlite3_stmt *s, int iCol)
	{
		return (u64) sqlite3_column_int64(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