3 /* Copyright (c) 2007 Kayo Fujiwara. All rights reserved. */
5 /* This program is free software; you can redistribute it and/or modify it
6 * under the terms of the license (GNU LGPL) which comes with this package. */
8 //GTNETS_Link, GTNETS_Node, GTNETS_Topology:
9 //Temporary classes for generating GTNetS topology
11 #include "gtnets_topology.h"
16 #include "xbt/asserts.h"
17 #include <stdio.h> //for fflush in print_topology
19 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network_gtnets_topology, surf_network_gtnets,
20 "Logging specific to the SURF network GTNetS simulator");
27 GTNETS_Node::GTNETS_Node(int id):ID_(id),is_router_(false){}
29 GTNETS_Node::GTNETS_Node(const GTNETS_Node& node){
31 is_router_ = node.is_router_;
35 GTNETS_Node::~GTNETS_Node(){
39 // hostid = network_card_id
40 int GTNETS_Node::add_host(int hostid){
41 xbt_assert(!(is_router_), "Cannot add a host to a router node");
42 hosts_.insert(hostid);
46 // Add a router. If this node already has a router/host,
48 int GTNETS_Node::add_router(int routerid){
49 xbt_assert(!(hosts_.size() > 1), "Router node should have only one router");
50 if (hosts_.size() == 1){
51 xbt_assert((hosts_.find(routerid) != hosts_.end()), "Node %d is a different router", routerid);
55 hosts_.insert(routerid);
59 bool GTNETS_Node::is_router(){
63 bool GTNETS_Node::include(int hostid){
64 if (hosts_.find(hostid) == hosts_.end()) return false;
68 void GTNETS_Node::print_hosts(){
69 set<int>::iterator it;
70 for (it = hosts_.begin(); it != hosts_.end(); it++){
71 XBT_DEBUG("host id %d", *it);
80 GTNETS_Link::GTNETS_Link(){
85 GTNETS_Link::GTNETS_Link(int id):ID_(id), src_node_(0), dst_node_(0){}
88 GTNETS_Link::GTNETS_Link(const GTNETS_Link& link){
90 src_node_ = link.src_node_;
91 dst_node_ = link.dst_node_;
94 GTNETS_Link::~GTNETS_Link(){
98 void GTNETS_Link::print_link_status(){
99 XBT_DEBUG("****** link id: %d", ID_);
101 XBT_DEBUG("[src] id: %d, is it router?: %d",src_node_->id(), src_node_->is_router());
105 XBT_DEBUG("[dst] id: %d, is it router?: %d",dst_node_->id(), dst_node_->is_router());
109 GTNETS_Node* GTNETS_Link::src_node(){
113 GTNETS_Node* GTNETS_Link::dst_node(){
117 bool GTNETS_Link::route_exists(){
118 if (src_node_ && dst_node_) return true;
122 // return the peer node id
123 int GTNETS_Link::peer_node(int cur_id){
124 xbt_assert(((cur_id == src_node_->id())||(cur_id == dst_node_->id())), "Node not found");
126 if (cur_id == src_node_->id()) return dst_node_->id();
127 else if (cur_id == dst_node_->id()) return src_node_->id();
130 int GTNETS_Link::add_src(GTNETS_Node* src){
134 int GTNETS_Link::add_dst(GTNETS_Node* dst){
144 GTNETS_Topology::GTNETS_Topology(){
149 GTNETS_Topology::~GTNETS_Topology(){
150 map<int, GTNETS_Link*>::iterator it1;
151 for (it1 = links_.begin(); it1 != links_.end(); it1++){
154 vector<GTNETS_Node*>::iterator it2;
155 for (it2 = nodes_.begin(); it2 != nodes_.end(); it2++){
161 int GTNETS_Topology::link_size(){
162 return links_.size();
165 int GTNETS_Topology::node_size(){
166 return nodes_.size();
169 int GTNETS_Topology::add_link(int id){
170 map<int,GTNETS_Link*>::iterator iter = links_.find(id);
171 xbt_assert((iter == links_.end()), "Link %d already exists", id);
173 if(iter == links_.end()) {
174 GTNETS_Link* link= new GTNETS_Link(id);
180 int GTNETS_Topology::add_router(int id){
181 set<int>::iterator iter = routers_.find(id);
182 if(iter == routers_.end()){
185 XBT_DEBUG("Router (#%d) already exists", id);
190 bool GTNETS_Topology::is_router(int id){
191 set<int>::iterator iter = routers_.find(id);
192 if(iter == routers_.end()) return false;
196 //return the node id of the peer of cur_id by linkid.
197 int GTNETS_Topology::peer_node_id(int linkid, int cur_id){
198 GTNETS_Link* link = links_[linkid];
199 xbt_assert((link), "Link %d not found", linkid);
200 xbt_assert(!((cur_id < 0) || (cur_id > nodes_.size()-1)), "Node %d not found", cur_id);
202 int peer = link->peer_node(nodes_[cur_id]->id());
203 xbt_assert(!(peer < 0), "Peer not found");
208 int GTNETS_Topology::add_onehop_route(int src, int dst, int linkid){
211 map<int, GTNETS_Link*>::iterator iter = links_.find(linkid);
213 xbt_assert(!(iter == links_.end()), "Link %d not found", linkid);
216 XBT_DEBUG("Add onehop route, src (#%d), dst (#%d), linkid %d:(#%d)",src, dst, linkid, link->id());
218 GTNETS_Node *src_node, *dst_node;
219 src_node = link->src_node();
220 dst_node = link->dst_node();
222 // If not exists a route, add one.
223 if (!link->route_exists()){
224 //check whether there exists a node for the src.
225 int s_node_id = nodeid_from_hostid(src);
228 if (s_node_id < 0){//not exist, create one.
230 GTNETS_Node* node1 = new GTNETS_Node(s_node_id);
231 nodes_.push_back(node1);
232 hosts_[src] = nodes_[s_node_id]->id();
238 nodes_[s_node_id]->add_router(src);
240 nodes_[s_node_id]->add_host(src);
242 link->add_src(nodes_[s_node_id]);
244 //check whether there exists a node for the dst host/router.
245 int d_node_id = nodeid_from_hostid(dst);
246 if (d_node_id < 0){//not exist, create one.
248 GTNETS_Node* node2 = new GTNETS_Node(d_node_id);
249 nodes_.push_back(node2);
250 hosts_[dst] = nodes_[d_node_id]->id();
255 nodes_[d_node_id]->add_router(dst);
257 nodes_[d_node_id]->add_host(dst);
259 link->add_dst(nodes_[d_node_id]);
260 }else if (!(src_node && dst_node)){
261 xbt_assert((src_node && dst_node), "Either src or dst is null");
264 // case 1: link has two routers
265 else if (src_node->is_router() && dst_node->is_router()){
266 int tmpsrc1 = src_node->id();
267 int tmpsrc2 = nodeid_from_hostid(src);
268 int tmpdst1 = dst_node->id();
269 int tmpdst2 = nodeid_from_hostid(dst);
270 xbt_assert( (((tmpsrc1 == tmpsrc2) && (tmpdst1 == tmpdst2)) ||
271 ((tmpsrc1 == tmpdst2) && (tmpdst1 == tmpsrc2))), "Different one hop route defined");
274 // case 2: link has one router and one host
275 else if (src_node->is_router() && !dst_node->is_router()){
277 xbt_assert( ((is_router(src))||(is_router(dst))), "One of nodes should be a router");
282 }else if (is_router(dst)){
287 xbt_assert(!(src_node->id() != nodeid_from_hostid(newsrc)), "The router should be identical");
289 //now, to add dst to dst_node, dst should be a host.
290 xbt_assert(!(is_router(newdst)), "Dst %d is not an endpoint. cannot add it to dst_node", newdst);
292 if (!dst_node->include(newdst)){
293 dst_node->add_host(newdst);
294 hosts_[newdst] = dst_node->id();
297 else if (!src_node->is_router() && dst_node->is_router()){
299 xbt_assert(((is_router(src))||(is_router(dst))), "One of nodes should be a router");
304 }else if (is_router(dst)){
309 xbt_assert(!(dst_node->id() != hosts_[newdst]), "The router should be identical");
310 //now, to add dst to src_node, dst should be a host.
311 xbt_assert(!(is_router(newsrc)), "Src %d is not an endpoint. cannot add it to src_node", newsrc);
313 if (!src_node->include(newsrc)){
314 src_node->add_host(newsrc);
315 hosts_[newsrc] = src_node->id();
319 // case 3: link has two hosts
320 else if (!src_node->is_router() && !dst_node->is_router()){
321 xbt_assert(!(is_router(src) || is_router(dst)), "Cannot add a router to host-host link");
323 //if both are hosts, the order doesn't matter.
324 if (src_node->include(src)){
325 if (dst_node->include(dst)){
328 dst_node->add_host(dst);
329 hosts_[dst] = dst_node->id();
331 }else if (src_node->include(dst)){
332 if (dst_node->include(src)){
335 dst_node->add_host(src);
336 hosts_[src] = dst_node->id();
338 }else if (dst_node->include(src)){
339 if (src_node->include(dst)){
342 src_node->add_host(dst);
343 hosts_[dst] = src_node->id();
345 }else if (dst_node->include(dst)){
346 if (src_node->include(src)){
349 src_node->add_host(src);
350 hosts_[src] = src_node->id();
353 src_node->add_host(src);
354 dst_node->add_host(dst);
355 hosts_[src] = src_node->id();
356 hosts_[dst] = dst_node->id();
361 xbt_die("Shouldn't be here");
367 int GTNETS_Topology::nodeid_from_hostid(int hostid){
368 map<int,int>::iterator it = hosts_.find(hostid);
369 if (it == hosts_.end())
371 else return it->second;
374 void GTNETS_Topology::print_topology(){
375 XBT_DEBUG("<<<<<================================>>>>>");
376 XBT_DEBUG("Dumping GTNETS topollogy information");
377 map<int, GTNETS_Link*>::iterator it;
378 for (it = links_.begin(); it != links_.end(); it++){
379 it->second->print_link_status();
381 XBT_DEBUG(">>>>>================================<<<<<");
385 const vector<GTNETS_Node*>& GTNETS_Topology::nodes(){
389 const map<int, GTNETS_Link*>& GTNETS_Topology::links(){