multi_heap.h

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/* Copyright (c) 2021 Intel Corporation
 * SPDX-License-Identifier: Apache-2.0
 */
 
#ifndef ZEPHYR_INCLUDE_SYS_MULTI_HEAP_H_
#define ZEPHYR_INCLUDE_SYS_MULTI_HEAP_H_
 
#include <zephyr/types.h>
 
#define MAX_MULTI_HEAPS 8
 
struct sys_multi_heap;
 
typedef void *(*sys_multi_heap_fn_t)(struct sys_multi_heap *mheap, void *cfg,
                                     size_t align, size_t size);
 
 
struct sys_multi_heap_rec {
        struct sys_heap *heap;
        void *user_data;
};
 
struct sys_multi_heap {
        unsigned int nheaps;
        sys_multi_heap_fn_t choice;
        struct sys_multi_heap_rec heaps[MAX_MULTI_HEAPS];
};
 
void sys_multi_heap_init(struct sys_multi_heap *heap,
                         sys_multi_heap_fn_t choice_fn);
 
void sys_multi_heap_add_heap(struct sys_multi_heap *mheap, struct sys_heap *heap, void *user_data);
 
void *sys_multi_heap_alloc(struct sys_multi_heap *mheap, void *cfg, size_t bytes);
 
void *sys_multi_heap_aligned_alloc(struct sys_multi_heap *mheap,
                                   void *cfg, size_t align, size_t bytes);
 
const struct sys_multi_heap_rec *sys_multi_heap_get_heap(const struct sys_multi_heap *mheap,
                                                         void *addr);
 
void sys_multi_heap_free(struct sys_multi_heap *mheap, void *block);
 
void *sys_multi_heap_aligned_realloc(struct sys_multi_heap *mheap, void *cfg,
                                     void *ptr, size_t align, size_t bytes);
 
#define sys_multi_heap_realloc(mheap, cfg, ptr, bytes) \
        sys_multi_heap_aligned_realloc(mheap, cfg, ptr, 0, bytes)
 
#endif /* ZEPHYR_INCLUDE_SYS_MULTI_HEAP_H_ */