void *mc_realloc(void *ptr, size_t size) {
void *new_ptr;
mem_cache_ptr mem_cache;
mem_cache_header_ptr mem_cache_header;
if (NULL == ptr || size <= 0) {
return NULL;
}
mem_cache_header = (mem_cache_header_ptr)(ptr - sizeof(mem_cache_header_t));
mem_cache = mem_cache_header->mem_cache;
if (mem_cache_header->size <= size) {
return ptr;
}
if (mem_cache != redis_mem_cache) {
return NULL;
}
if (MEMCACHE_MAGIC_NUMBER != mem_cache->magic_number) {
return NULL;
}
if (mem_cache_header->size <= 0) {
return NULL;
}
new_ptr = mem_cache_alloc(redis_mem_cache, size);
if (NULL == new_ptr) {
return NULL;
}
memcpy(new_ptr, ptr, mem_cache_header->size);
mem_cache_free(ptr);
return new_ptr;
}
struct mem_cache_t *mem_cache_create(size_t objsize, uint32_t capacity)
{
struct mem_cache_t *cachep;
void *parray_mem;
cachep = mem_cache_alloc(cache_cache);
if (cachep == NULL)
return NULL;
parray_mem = __dma_mem_memalign(L1_CACHE_BYTES,
sizeof(void *) * capacity);
if (parray_mem == NULL) {
mem_cache_free(cache_cache, cachep);
return NULL;
}
cachep->objsize = objsize;
cachep->free_limit = capacity;
cachep->ptr_stack = parray_mem;
cachep->next_free = 0;
cachep->obj_allocated = 0;
mutex_init(&(cachep->mmlock));
return cachep;
}
void item_free(item *it) {
unsigned int ntotal = ITEM_ntotal(it);
assert((it->it_flags & ITEM_LINKED) == 0);
assert(it != heads[it->slabs_clsid]);
assert(it != tails[it->slabs_clsid]);
assert(it->refcount == 0);
/* so slab size changer can tell later if item is already free or not */
it->slabs_clsid = 0;
it->it_flags |= ITEM_SLABBED;
mem_cache_free(mem_cache, it, ntotal);
}
int kfree(const void * mem) {
int i;
if(!mem)
return 0;
for(i=0;i<SIZEOFARRAY(_pools);i++)
if( _pools_mem_cache[i] )
if( mem_cache_free(_pools_mem_cache[i], mem) == 0 )
return 0;
return -1;
}
void mc_free(void *ptr) {
mem_cache_free(ptr);
}
int mem_cache_free_wrapped(void *addr)
{
return mem_cache_free(this, addr);
}