MPD  0.20.15
DatabasePlugin.hxx
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1 /*
2  * Copyright 2003-2017 The Music Player Daemon Project
3  * http://www.musicpd.org
4  *
5  * This program is free software; you can redistribute it and/or modify
6  * it under the terms of the GNU General Public License as published by
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8  * (at your option) any later version.
9  *
10  * This program is distributed in the hope that it will be useful,
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12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13  * GNU General Public License for more details.
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16  * with this program; if not, write to the Free Software Foundation, Inc.,
17  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
18  */
19 
26 #ifndef MPD_DATABASE_PLUGIN_HXX
27 #define MPD_DATABASE_PLUGIN_HXX
28 
29 struct ConfigBlock;
30 class EventLoop;
31 class DatabaseListener;
32 class Database;
33 
39  static constexpr unsigned FLAG_REQUIRE_STORAGE = 0x1;
40 
41  const char *name;
42 
43  unsigned flags;
44 
50  Database *(*create)(EventLoop &loop, DatabaseListener &listener,
51  const ConfigBlock &block);
52 
53  constexpr bool RequireStorage() const {
54  return flags & FLAG_REQUIRE_STORAGE;
55  }
56 };
57 
58 #endif
An event loop that polls for events on file/socket descriptors.
Definition: Loop.hxx:51
static constexpr unsigned FLAG_REQUIRE_STORAGE
This plugin requires a Storage instance.
An object that listens to events from the Database.
constexpr bool RequireStorage() const
const char * name