tsiry-sandratraina.com
A modern Music Player Daemon based on Rockbox open source high quality audio player
libadwaita
audio
rust
zig
deno
mpris
rockbox
mpd
1/***************************************************************************
2 * __________ __ ___.
3 * Open \______ \ ____ ____ | | _\_ |__ _______ ___
4 * Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
5 * Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
6 * Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
7 * \/ \/ \/ \/ \/
8 *
9 * Copyright (C) 2003 Tat Tang
10 *
11 * This program is free software; you can redistribute it and/or
12 * modify it under the terms of the GNU General Public License
13 * as published by the Free Software Foundation; either version 2
14 * of the License, or (at your option) any later version.
15 *
16 * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
17 * KIND, either express or implied.
18 *
19 ****************************************************************************/
20
21#ifndef LRU_H
22#define LRU_H
23
24/*******************************************************************************
25 * LRU manager
26 ******************************************************************************/
27struct lru
28{
29 short _head;
30 short _tail;
31 short _size;
32 short _slot_size;
33 void *_base;
34};
35
36/* LRU_SLOT_OVERHEAD is the fixed portion of struct lru_node */
37#define LRU_SLOT_OVERHEAD (2 * sizeof(short))
38
39/* Create LRU list with specified size from buf. */
40void lru_create(struct lru* pl, void *buf, short size, short data_size);
41/* Touch an entry. Moves handle to back of LRU list */
42void lru_touch(struct lru* pl, short handle);
43/* Data */
44void *lru_data(struct lru* pl, short handle);
45/* Traverse lru-wise */
46void lru_traverse(struct lru* pl, void (*callback)(void* data));
47
48#endif /* LRU_H */