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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.
*/
#ifndef MPD_INSTANCE_HXX
#define MPD_INSTANCE_HXX
#include "check.h"
#include "Compiler.h"
#ifdef ENABLE_NEIGHBOR_PLUGINS
#include "neighbor/Listener.hxx"
class NeighborGlue;
#endif
#ifdef ENABLE_DATABASE
#include "db/DatabaseListener.hxx"
class Database;
class Storage;
class UpdateService;
#endif
class EventLoop;
class Error;
class ClientList;
struct Partition;
struct Instance final
#if defined(ENABLE_DATABASE) || defined(ENABLE_NEIGHBOR_PLUGINS)
:
#endif
#ifdef ENABLE_DATABASE
public DatabaseListener
#ifdef ENABLE_NEIGHBOR_PLUGINS
,
#endif
#endif
#ifdef ENABLE_NEIGHBOR_PLUGINS
public NeighborListener
#endif
{
EventLoop *event_loop;
#ifdef ENABLE_NEIGHBOR_PLUGINS
NeighborGlue *neighbors;
#endif
#ifdef ENABLE_DATABASE
Database *database;
/**
* This is really a #CompositeStorage. To avoid heavy include
* dependencies, we declare it as just #Storage.
*/
Storage *storage;
UpdateService *update;
#endif
ClientList *client_list;
Partition *partition;
Instance() {
#ifdef ENABLE_DATABASE
storage = nullptr;
update = nullptr;
#endif
}
#ifdef ENABLE_DATABASE
/**
* Returns the global #Database instance. May return nullptr
* if this MPD configuration has no database (no
* music_directory was configured).
*/
Database *GetDatabase(Error &error);
#endif
/**
* A tag in the play queue has been modified by the player
* thread. Propagate the change to all subsystems.
*/
void TagModified();
/**
* Synchronize the player with the play queue.
*/
void SyncWithPlayer();
private:
#ifdef ENABLE_DATABASE
virtual void OnDatabaseModified() override;
virtual void OnDatabaseSongRemoved(const LightSong &song) override;
#endif
#ifdef ENABLE_NEIGHBOR_PLUGINS
/* virtual methods from class NeighborListener */
virtual void FoundNeighbor(const NeighborInfo &info) override;
virtual void LostNeighbor(const NeighborInfo &info) override;
#endif
};
#endif
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