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) 2023 William Wilgus
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
22#ifndef _CHUNKALLOC_H_
23#define _CHUNKALLOC_H_
24#include <stdbool.h>
25#include <string.h>
26#include "config.h"
27#include "buflib.h"
28
29#define CHUNK_ALLOC_INVALID ((size_t)-1)
30
31
32struct chunk_alloc_header
33{
34 struct buflib_context *context; /* buflib context for all allocations */
35 int chunk_handle; /* data handle of buflib allocated array of struct chunk */
36
37 size_t chunk_bytes_total; /* total bytes in current chunk */
38 size_t chunk_bytes_free; /* free bytes in current chunk */
39 size_t chunk_size; /* default chunk size */
40 size_t count; /* total chunks possible */
41 size_t current; /* current chunk in use */
42
43 struct {
44 int handle;
45 size_t min_offset;
46 size_t max_offset;
47 } cached_chunk;
48};
49
50void chunk_alloc_free(struct chunk_alloc_header *hdr);
51
52bool chunk_alloc_init(struct chunk_alloc_header *hdr,
53 struct buflib_context *ctx,
54 size_t chunk_size, size_t max_chunks);
55
56bool chunk_realloc(struct chunk_alloc_header *hdr,
57 size_t chunk_size, size_t max_chunks);
58
59void chunk_alloc_finalize(struct chunk_alloc_header *hdr);
60
61size_t chunk_alloc(struct chunk_alloc_header *hdr, size_t size); /* Returns offset */
62
63void* chunk_get_data(struct chunk_alloc_header *hdr, size_t offset); /* Returns data */
64
65void chunk_put_data(struct chunk_alloc_header *hdr, void* data, size_t offset);
66
67static inline bool chunk_alloc_is_initialized(struct chunk_alloc_header *hdr)
68{
69 return (hdr->chunk_handle > 0);
70}
71#endif