static void *
wmem_block_fast_realloc(void *private_data, void *ptr, const size_t size)
{
wmem_block_fast_chunk_t *chunk;
chunk = WMEM_DATA_TO_CHUNK(ptr);
/* grow */
if (chunk->len < size) {
void *newptr;
/* need to alloc and copy; free is no-op, so don't call it */
newptr = wmem_block_fast_alloc(private_data, size);
memcpy(newptr, ptr, chunk->len);
return newptr;
}
/* shrink or same space - great we can do nothing */
return ptr;
}
static void *
wmem_block_fast_realloc(void *private_data, void *ptr, const size_t size)
{
wmem_block_fast_chunk_t *chunk;
chunk = WMEM_DATA_TO_CHUNK(ptr);
if (chunk->len == JUMBO_MAGIC) {
wmem_block_fast_jumbo_t *block;
block = ((wmem_block_fast_jumbo_t*)((guint8*)(chunk) - WMEM_JUMBO_HEADER_SIZE));
block = (wmem_block_fast_jumbo_t*)wmem_realloc(NULL, block,
size + WMEM_JUMBO_HEADER_SIZE + WMEM_CHUNK_HEADER_SIZE);
if (block->prev) {
block->prev->next = block;
}
else {
wmem_block_fast_allocator_t *allocator = (wmem_block_fast_allocator_t*) private_data;
allocator->jumbo_list = block;
}
if (block->next) {
block->next->prev = block;
}
return ((void*)((guint8*)(block) + WMEM_JUMBO_HEADER_SIZE + WMEM_CHUNK_HEADER_SIZE));
}
else if (chunk->len < size) {
/* grow */
void *newptr;
/* need to alloc and copy; free is no-op, so don't call it */
newptr = wmem_block_fast_alloc(private_data, size);
memcpy(newptr, ptr, chunk->len);
return newptr;
}
/* shrink or same space - great we can do nothing */
return ptr;
}