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/*
* Copyright (C) 2003-2014 The Music Player Daemon Project
* http://www.musicpd.org
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 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 General Public License for more details.
*
* You should have received a copy of the GNU 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.
*/
/** \file
*
* This header declares the db_plugin class. It describes a
* plugin API for databases of song metadata.
*/
#ifndef MPD_DATABASE_PLUGIN_HXX
#define MPD_DATABASE_PLUGIN_HXX
struct config_param;
class Error;
class EventLoop;
class DatabaseListener;
class Database;
struct DatabasePlugin {
/**
* This plugin requires a #Storage instance. It contains only
* cached metadata from files in the #Storage.
*/
static constexpr unsigned FLAG_REQUIRE_STORAGE = 0x1;
const char *name;
unsigned flags;
/**
* Allocates and configures a database.
*/
Database *(*create)(EventLoop &loop, DatabaseListener &listener,
const config_param ¶m,
Error &error);
constexpr bool RequireStorage() const {
return flags & FLAG_REQUIRE_STORAGE;
}
};
#endif
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