61 lines
1.2 KiB
C
61 lines
1.2 KiB
C
#include <stdlib.h>
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#include <string.h>
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#include <malloc.h>
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#include <unistd.h>
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#include <assert.h>
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#include <linux/mempool.h>
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#include <linux/slab.h>
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#include <urcu/uatomic.h>
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int nr_allocated;
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void *mempool_alloc(mempool_t *pool, int gfp_mask)
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{
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return pool->alloc(gfp_mask, pool->data);
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}
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void mempool_free(void *element, mempool_t *pool)
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{
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pool->free(element, pool->data);
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}
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mempool_t *mempool_create(int min_nr, mempool_alloc_t *alloc_fn,
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mempool_free_t *free_fn, void *pool_data)
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{
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mempool_t *ret = malloc(sizeof(*ret));
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ret->alloc = alloc_fn;
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ret->free = free_fn;
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ret->data = pool_data;
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return ret;
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}
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void *kmem_cache_alloc(struct kmem_cache *cachep, int flags)
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{
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void *ret = malloc(cachep->size);
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if (cachep->ctor)
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cachep->ctor(ret);
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uatomic_inc(&nr_allocated);
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return ret;
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}
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void kmem_cache_free(struct kmem_cache *cachep, void *objp)
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{
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assert(objp);
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uatomic_dec(&nr_allocated);
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memset(objp, 0, cachep->size);
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free(objp);
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}
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struct kmem_cache *
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kmem_cache_create(const char *name, size_t size, size_t offset,
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unsigned long flags, void (*ctor)(void *))
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{
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struct kmem_cache *ret = malloc(sizeof(*ret));
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ret->size = size;
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ret->ctor = ctor;
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return ret;
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}
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