slab.h

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#ifndef __SLAB_H__
#define __SLAB_H__
 
#include <common/list.h>
 
#define CACHE_PAGE_SIZE 256
#define CACHE_NAME_LEN 16
 
#define CACHE_OPT_NONE 0
 
struct kmem_cache {
    struct list_head slabs_free;
    struct list_head slabs_partial;
    struct list_head slabs_full;
    struct list_head list;
    unsigned short objsize;
    unsigned short objnum;
    unsigned short page_order;
    int opts;
    int alloc_succeed;
    int alloc_fail;
    char name[CACHE_NAME_LEN];
};
 
struct slab {
    unsigned long free_bitmap[1];
    int free_objects;
    struct list_head list;
    char data[0];
};
 
struct kmem_cache *kmem_cache_create(const char *name,
                                     size_t size,
                                     size_t align,
                                     unsigned long flags,
                                     void (*ctor)(void *));
 
void *kmem_cache_alloc(struct kmem_cache *cache, unsigned long flags);
 
void kmem_cache_free(struct kmem_cache *cache, void *obj);
 
void kmem_cache_init(void);
 
#endif