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/*
connection.h
Copyright (C) 2019 Richard Knight
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 3 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 CONNECTION_H
#define CONNECTION_H
#include <plugin.h>
#include "logindata.h"
#define EXEC 0
#define SCALAR 1
#define SCALARSTRING 2
#define ARRAY 3
#define ARRAYSTRING 4
#define POSTGRES 0
#define SQLITE 1
#define MYSQL 2
#ifdef BUILD_SQLITE
#include "sqlite.h"
#endif
#ifdef BUILD_POSTGRES
#include "postgresql.h"
#endif
#ifdef BUILD_MYSQL
#include "mysql.h"
#endif
// tried to do this with templates and inheritance, failed with various approaches
struct ConnectionData {
void* mutex;
#ifdef BUILD_SQLITE
SqliteConnection* sqlite;
#endif
#ifdef BUILD_POSTGRES
PostgresConnection* postgres;
#endif
#ifdef BUILD_MYSQL
MySQLConnection* mysql;
#endif
int type;
bool open;
void Init(csnd::Csound* csound, LoginData* login);
void Close(csnd::Csound* csound);
void Exec(char* sql);
MYFLT Scalar(char* sql, int row, int col);
char* ScalarString(char* sql, int row=0, int col=0);
void ArrayQuery(char* sql, csnd::Csound* csound, ARRAYDAT* array);
void ArrayQueryString(char* sql, csnd::Csound* csound, ARRAYDAT* array);
};
struct QueryData {
ConnectionData* connection;
char* sql;
int queryType;
int row;
int col;
ARRAYDAT* array;
};
ConnectionData* getConnection(csnd::Csound* csound, MYFLT handle);
#endif /* CONNECTION_H */
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