A modern Music Player Daemon based on Rockbox open source high quality audio player
tsiry-sandratraina.com
libadwaita
audio
rust
zig
deno
mpris
rockbox
mpd
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 * $Id$
9 *
10 * Copyright (C) 2014 by Michael Sevakis
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
16 *
17 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
18 * KIND, either express or implied.
19 *
20 ****************************************************************************/
21#ifndef DISK_CACHE_H
22#define DISK_CACHE_H
23
24#include "mutex.h"
25#include "mv.h"
26
27static inline void dc_lock_cache(void)
28{
29 extern struct mutex disk_cache_mutex;
30 mutex_lock(&disk_cache_mutex);
31}
32
33static inline void dc_unlock_cache(void)
34{
35 extern struct mutex disk_cache_mutex;
36 mutex_unlock(&disk_cache_mutex);
37}
38
39void * dc_cache_probe(IF_MV(int volume,) sector_t secnum,
40 unsigned int *flags);
41void dc_dirty_buf(void *buf);
42void dc_discard_buf(void *buf);
43void dc_commit_all(IF_MV_NONVOID(int volume));
44void dc_discard_all(IF_MV_NONVOID(int volume));
45
46void dc_init(void) INIT_ATTR;
47
48/* in addition to filling, writeback is implemented by the client */
49extern void dc_writeback_callback(IF_MV(int volume, ) sector_t sector,
50 void *buf);
51
52
53/** These synchronize and can be called by anyone **/
54
55/* expropriate a buffer from the cache of DC_CACHE_BUFSIZE bytes */
56void * dc_get_buffer(void);
57/* return buffer to the cache by buffer */
58void dc_release_buffer(void *buf);
59
60#endif /* DISK_CACHE_H */