RECOMPUTE_LOCK
request->l_state |= RECOMPUTE_LOCK;
request->l_state &= ~RECOMPUTE_LOCK;
topology[i]->l_state |= RECOMPUTE_LOCK;
topology[i]->l_state &= ~RECOMPUTE_LOCK;
ep->to_vertex->l_state |= RECOMPUTE_LOCK;
topology[i]->l_state &= ~RECOMPUTE_LOCK;
#define IS_RECOMPUTE(lock) ((lock)->l_state & RECOMPUTE_LOCK)