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authorRichard Knight <q@1bpm.net>2020-03-17 18:47:36 +0000
committerRichard Knight <q@1bpm.net>2020-03-17 18:47:36 +0000
commitc3853f6dd796615f332fefcaaaf563794d867ee4 (patch)
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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 */
+