File syn_slab.h

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#ifndef SYN_SLAB_H
#define SYN_SLAB_H

#include "../common/syn_defs.h"

#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>

#ifdef __cplusplus
extern "C" {
#endif

#define SYN_SLAB_MAX_CLASSES 8U

typedef struct {
    size_t block_size;   
    size_t total_blocks; 
    size_t free_count;   
    uint8_t *start_ptr;  
    void *freelist;      
} SYN_SlabClass;

typedef struct {
    uint8_t *backing_memory;                     
    size_t total_memory_size;                    
    SYN_SlabClass classes[SYN_SLAB_MAX_CLASSES]; 
    size_t num_classes;                          
} SYN_SlabAllocator;

typedef struct {
    size_t total_bytes;     
    size_t allocated_bytes; 
    size_t total_allocs;    
} SYN_SlabStats;

SYN_Status syn_slab_init(SYN_SlabAllocator *slab, void *backing_memory, size_t total_size,
                         const size_t *block_sizes, const size_t *blocks_per_class,
                         size_t num_classes);

void *syn_slab_alloc(SYN_SlabAllocator *slab, size_t size);

SYN_Status syn_slab_free(SYN_SlabAllocator *slab, void *ptr);

SYN_Status syn_slab_get_stats(const SYN_SlabAllocator *slab, SYN_SlabStats *stats);

#ifdef __cplusplus
}
#endif

#endif /* SYN_SLAB_H */