想问一下该代码用的什么排序

void Link::LinkSort()
{

Node *h1,*h2;
Node *p,*q,*t;
h2=h1=Head;
h2=h2->GetNext();
h1->SetNext(NULL);
for(;h2!=NULL;)
{
    t=h2;
    for(p=h1,q=p;(q!=NULL)&&(t->Getd()>q->Getd());p=q,q=q->GetNext());
    h2=h2->GetNext();
    if(q==h1)
    {
        t->SetNext(q);
        h1=t;
    }
    else
    {
        p->SetNext(t);
        t->SetNext(q);
    }
}
Head=h1;

}

堆排序吧