NS-3 学习之OLSR 获取周围邻居节点

代码段如下：

void printNeibors(Ptr<Node> node) {

//	Ptr<Ipv4> ipv4_1 = node->GetObject<Ipv4>();
//	Ptr<Ipv4RoutingProtocol> ipv4RoutingProtocol = ipv4_1->GetRoutingProtocol();
//	Ptr<olsr::RoutingProtocol> routingProtocol = DynamicCast<
//			olsr::RoutingProtocol>(ipv4RoutingProtocol);

//	const NeighborSet &neighbors =
//	routingProtocol->GetNeighbors();
//	std::cout << "neighborMainAddr: "
//			<< routingProtocol->GetNeighbors().begin()->neighborMainAddr
//			<< "\n";

	Ptr<Ipv4> ipv4 = node->GetObject<Ipv4>();
	Ptr<Ipv4RoutingProtocol> rp_Gw = (ipv4->GetRoutingProtocol());
	Ptr<Ipv4ListRouting> lrp_Gw = DynamicCast<Ipv4ListRouting>(rp_Gw);

	Ptr<olsr::RoutingProtocol> olsrrp_Gw;

	//参考ns-3 3.35 src/olsr/examples/olsr-hna.cc
	for (uint32_t i = 0; i < lrp_Gw->GetNRoutingProtocols(); i++) {
		int16_t priority;
		Ptr<Ipv4RoutingProtocol> temp = lrp_Gw->GetRoutingProtocol(i, priority);
		if (DynamicCast<olsr::RoutingProtocol>(temp)) {
			olsrrp_Gw = DynamicCast<olsr::RoutingProtocol>(temp);
			std::cout << "neighborMainAddr: "
					<< olsrrp_Gw->GetNeighbors().size() << "\n";
		} else {
			std::cout << DynamicCast<olsr::RoutingProtocol>(temp) << "\n";
		}
	}
}

调用该段代码的代码段如下：

NodeContainer c;
c.Create(5);
/*
 *中间还有其他一些配置，这里略过了。完整代码建议结合ns-3 3.35 源码包中的两个例子自行编写：
 * src/olsr/examplses/simple-point-to-point-olsr.cc
 * src/olsr/examplses/olsr-hna.cc
 *
/
Simulator::Schedule(Seconds(2.0), &printNeibors, c.Get(3));