MemList* 
createMeamList(uint32 size, uint32 count)
{
    MemList* mlist = 
	smanager->locate(sizeof(MemorySegment));
    return mlist;
}

void
addFirst(MemorySegment* e)
{
    e->next = this->first;
    this->first->prev = e;
    first = e;
}

void
addLast(MemorySegment* e)
{
    e->prev = this->last;
    this->last->next = e;
    last = e;
}

MemorySegment
getFirst()
{
    return this->first;
}

MemorySegment
getLast()
{
    return this->last;
}

boolean
remove(MemorySegment* e)
{
    MemorySegment* p = e;
    p->prev->next = p->next;
    p->next->prev = p->prev;
    p->prev = NULL;
    p->next = NULL;
}

void
moveToFirst(MemorySegment* e)
{
    remove(e);
    addFirst(e);
}