Function mymalloc

test/libmm/memalloc.cpp:88–121

}

void *mymalloc(size_t size)
{
	size_t total_size;
	void *block;
	header_t *header;
	if (!size)
		return NULL;
	pthread_mutex_lock(&global_malloc_lock);
	header = get_free_block(size);
	if (header) {
		/* Woah, found a free block to accomodate requested memory. */
		header->s.is_free = 0;
		pthread_mutex_unlock(&global_malloc_lock);
		return (void*)(header + 1);
	}
	/* We need to get memory to fit in the requested block and header from OS. */
	total_size = sizeof(header_t) + size;
	block = sbrk(total_size);
	if (block == (void*) -1) {
		pthread_mutex_unlock(&global_malloc_lock);
		return NULL;
	}
	header = (header_t*) block;
	header->s.size = size;
	header->s.is_free = 0;
	header->s.next = NULL;
	if (!head)
		head = header;
	if (tail)
		tail->s.next = header;
	tail = header;
	pthread_mutex_unlock(&global_malloc_lock);
	return (void*)(header + 1);
}

void *calloc(size_t num, size_t nsize)
{