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