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A modern, network-enabled music player platform built on Rockbox technology. rockboxd.tsiry-sandratraina.com
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1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950515253545556575859606162636465666768697071/**************************************************************************** __________ __ ___.* Open \______ \ ____ ____ | | _\_ |__ _______ ___* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \* \/ \/ \/ \/ \/** Copyright (C) 2023 William Wilgus** 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 software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY* KIND, either express or implied.*****************************************************************************/
#ifndef _CHUNKALLOC_H_#define _CHUNKALLOC_H_#include <stdbool.h>#include <string.h>#include "config.h"#include "buflib.h"
#define CHUNK_ALLOC_INVALID ((size_t)-1)
struct chunk_alloc_header{ struct buflib_context *context; /* buflib context for all allocations */ int chunk_handle; /* data handle of buflib allocated array of struct chunk */
size_t chunk_bytes_total; /* total bytes in current chunk */ size_t chunk_bytes_free; /* free bytes in current chunk */ size_t chunk_size; /* default chunk size */ size_t count; /* total chunks possible */ size_t current; /* current chunk in use */
struct { int handle; size_t min_offset; size_t max_offset; } cached_chunk;};
void chunk_alloc_free(struct chunk_alloc_header *hdr);
bool chunk_alloc_init(struct chunk_alloc_header *hdr, struct buflib_context *ctx, size_t chunk_size, size_t max_chunks);
bool chunk_realloc(struct chunk_alloc_header *hdr, size_t chunk_size, size_t max_chunks);
void chunk_alloc_finalize(struct chunk_alloc_header *hdr);
size_t chunk_alloc(struct chunk_alloc_header *hdr, size_t size); /* Returns offset */
void* chunk_get_data(struct chunk_alloc_header *hdr, size_t offset); /* Returns data */
void chunk_put_data(struct chunk_alloc_header *hdr, void* data, size_t offset);
static inline bool chunk_alloc_is_initialized(struct chunk_alloc_header *hdr){ return (hdr->chunk_handle > 0);}#endif