1 /* Copyright (c) 2007 Kayo Fujiwara. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 //GTNETS_Link, GTNETS_Node, GTNETS_Topology:
7 //Temporary classes for generating GTNetS topology
9 #include "gtnets_topology.h"
14 #include "xbt/asserts.h"
15 #include <stdio.h> //for fflush in print_topology
17 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_network_gtnets_topology, surf_network_gtnets,
18 "Logging specific to the SURF network GTNetS simulator");
25 GTNETS_Node::GTNETS_Node(int id):ID_(id),is_router_(false){}
27 GTNETS_Node::GTNETS_Node(const GTNETS_Node& node){
29 is_router_ = node.is_router_;
33 GTNETS_Node::~GTNETS_Node(){
37 // hostid = network_card_id
38 int GTNETS_Node::add_host(int hostid){
39 xbt_assert(!(is_router_), "Cannot add a host to a router node");
40 hosts_.insert(hostid);
44 // Add a router. If this node already has a router/host,
46 int GTNETS_Node::add_router(int routerid){
47 xbt_assert(!(hosts_.size() > 1), "Router node should have only one router");
48 if (hosts_.size() == 1){
49 xbt_assert((hosts_.find(routerid) != hosts_.end()), "Node %d is a different router", routerid);
53 hosts_.insert(routerid);
57 bool GTNETS_Node::is_router(){
61 bool GTNETS_Node::include(int hostid){
62 if (hosts_.find(hostid) == hosts_.end()) return false;
66 void GTNETS_Node::print_hosts(){
67 set<int>::iterator it;
68 for (it = hosts_.begin(); it != hosts_.end(); it++){
69 XBT_DEBUG("host id %d", *it);
78 GTNETS_Link::GTNETS_Link(){
83 GTNETS_Link::GTNETS_Link(int id):ID_(id), src_node_(0), dst_node_(0){}
86 GTNETS_Link::GTNETS_Link(const GTNETS_Link& link){
88 src_node_ = link.src_node_;
89 dst_node_ = link.dst_node_;
92 GTNETS_Link::~GTNETS_Link(){
96 void GTNETS_Link::print_link_status(){
97 XBT_DEBUG("****** link id: %d", ID_);
99 XBT_DEBUG("[src] id: %d, is it router?: %d",src_node_->id(), src_node_->is_router());
103 XBT_DEBUG("[dst] id: %d, is it router?: %d",dst_node_->id(), dst_node_->is_router());
107 GTNETS_Node* GTNETS_Link::src_node(){
111 GTNETS_Node* GTNETS_Link::dst_node(){
115 bool GTNETS_Link::route_exists(){
116 if (src_node_ && dst_node_) return true;
120 // return the peer node id
121 int GTNETS_Link::peer_node(int cur_id){
122 xbt_assert(((cur_id == src_node_->id())||(cur_id == dst_node_->id())), "Node not found");
124 if (cur_id == src_node_->id()) return dst_node_->id();
125 else if (cur_id == dst_node_->id()) return src_node_->id();
128 int GTNETS_Link::add_src(GTNETS_Node* src){
132 int GTNETS_Link::add_dst(GTNETS_Node* dst){
142 GTNETS_Topology::GTNETS_Topology(){
147 GTNETS_Topology::~GTNETS_Topology(){
148 map<int, GTNETS_Link*>::iterator it1;
149 for (it1 = links_.begin(); it1 != links_.end(); it1++){
152 vector<GTNETS_Node*>::iterator it2;
153 for (it2 = nodes_.begin(); it2 != nodes_.end(); it2++){
159 int GTNETS_Topology::link_size(){
160 return links_.size();
163 int GTNETS_Topology::node_size(){
164 return nodes_.size();
167 int GTNETS_Topology::add_link(int id){
168 map<int,GTNETS_Link*>::iterator iter = links_.find(id);
169 xbt_assert((iter == links_.end()), "Link %d already exists", id);
171 if(iter == links_.end()) {
172 GTNETS_Link* link= new GTNETS_Link(id);
178 int GTNETS_Topology::add_router(int id){
179 set<int>::iterator iter = routers_.find(id);
180 if(iter == routers_.end()){
183 XBT_DEBUG("Router (#%d) already exists", id);
188 bool GTNETS_Topology::is_router(int id){
189 set<int>::iterator iter = routers_.find(id);
190 if(iter == routers_.end()) return false;
194 //return the node id of the peer of cur_id by linkid.
195 int GTNETS_Topology::peer_node_id(int linkid, int cur_id){
196 GTNETS_Link* link = links_[linkid];
197 xbt_assert((link), "Link %d not found", linkid);
198 xbt_assert(!((cur_id < 0) || (cur_id > nodes_.size()-1)), "Node %d not found", cur_id);
200 int peer = link->peer_node(nodes_[cur_id]->id());
201 xbt_assert(!(peer < 0), "Peer not found");
206 int GTNETS_Topology::add_onehop_route(int src, int dst, int linkid){
209 map<int, GTNETS_Link*>::iterator iter = links_.find(linkid);
211 xbt_assert(!(iter == links_.end()), "Link %d not found", linkid);
214 XBT_DEBUG("Add onehop route, src (#%d), dst (#%d), linkid %d:(#%d)",src, dst, linkid, link->id());
216 GTNETS_Node *src_node, *dst_node;
217 src_node = link->src_node();
218 dst_node = link->dst_node();
220 // If not exists a route, add one.
221 if (!link->route_exists()){
222 //check whether there exists a node for the src.
223 int s_node_id = nodeid_from_hostid(src);
226 if (s_node_id < 0){//not exist, create one.
228 GTNETS_Node* node1 = new GTNETS_Node(s_node_id);
229 nodes_.push_back(node1);
230 hosts_[src] = nodes_[s_node_id]->id();
236 nodes_[s_node_id]->add_router(src);
238 nodes_[s_node_id]->add_host(src);
240 link->add_src(nodes_[s_node_id]);
242 //check whether there exists a node for the dst host/router.
243 int d_node_id = nodeid_from_hostid(dst);
244 if (d_node_id < 0){//not exist, create one.
246 GTNETS_Node* node2 = new GTNETS_Node(d_node_id);
247 nodes_.push_back(node2);
248 hosts_[dst] = nodes_[d_node_id]->id();
253 nodes_[d_node_id]->add_router(dst);
255 nodes_[d_node_id]->add_host(dst);
257 link->add_dst(nodes_[d_node_id]);
258 }else if (!(src_node && dst_node)){
259 xbt_assert((src_node && dst_node), "Either src or dst is null");
262 // case 1: link has two routers
263 else if (src_node->is_router() && dst_node->is_router()){
264 int tmpsrc1 = src_node->id();
265 int tmpsrc2 = nodeid_from_hostid(src);
266 int tmpdst1 = dst_node->id();
267 int tmpdst2 = nodeid_from_hostid(dst);
268 xbt_assert( (((tmpsrc1 == tmpsrc2) && (tmpdst1 == tmpdst2)) ||
269 ((tmpsrc1 == tmpdst2) && (tmpdst1 == tmpsrc2))), "Different one hop route defined");
272 // case 2: link has one router and one host
273 else if (src_node->is_router() && !dst_node->is_router()){
275 xbt_assert( ((is_router(src))||(is_router(dst))), "One of nodes should be a router");
280 }else if (is_router(dst)){
285 xbt_assert(!(src_node->id() != nodeid_from_hostid(newsrc)), "The router should be identical");
287 //now, to add dst to dst_node, dst should be a host.
288 xbt_assert(!(is_router(newdst)), "Dst %d is not an endpoint. cannot add it to dst_node", newdst);
290 if (!dst_node->include(newdst)){
291 dst_node->add_host(newdst);
292 hosts_[newdst] = dst_node->id();
295 else if (!src_node->is_router() && dst_node->is_router()){
297 xbt_assert(((is_router(src))||(is_router(dst))), "One of nodes should be a router");
302 }else if (is_router(dst)){
307 xbt_assert(!(dst_node->id() != hosts_[newdst]), "The router should be identical");
308 //now, to add dst to src_node, dst should be a host.
309 xbt_assert(!(is_router(newsrc)), "Src %d is not an endpoint. cannot add it to src_node", newsrc);
311 if (!src_node->include(newsrc)){
312 src_node->add_host(newsrc);
313 hosts_[newsrc] = src_node->id();
317 // case 3: link has two hosts
318 else if (!src_node->is_router() && !dst_node->is_router()){
319 xbt_assert(!(is_router(src) || is_router(dst)), "Cannot add a router to host-host link");
321 //if both are hosts, the order doesn't matter.
322 if (src_node->include(src)){
323 if (dst_node->include(dst)){
326 dst_node->add_host(dst);
327 hosts_[dst] = dst_node->id();
329 }else if (src_node->include(dst)){
330 if (dst_node->include(src)){
333 dst_node->add_host(src);
334 hosts_[src] = dst_node->id();
336 }else if (dst_node->include(src)){
337 if (src_node->include(dst)){
340 src_node->add_host(dst);
341 hosts_[dst] = src_node->id();
343 }else if (dst_node->include(dst)){
344 if (src_node->include(src)){
347 src_node->add_host(src);
348 hosts_[src] = src_node->id();
351 src_node->add_host(src);
352 dst_node->add_host(dst);
353 hosts_[src] = src_node->id();
354 hosts_[dst] = dst_node->id();
359 xbt_die("Shouldn't be here");
365 int GTNETS_Topology::nodeid_from_hostid(int hostid){
366 map<int,int>::iterator it = hosts_.find(hostid);
367 if (it == hosts_.end())
369 else return it->second;
372 void GTNETS_Topology::print_topology(){
373 XBT_DEBUG("<<<<<================================>>>>>");
374 XBT_DEBUG("Dumping GTNETS topollogy information");
375 map<int, GTNETS_Link*>::iterator it;
376 for (it = links_.begin(); it != links_.end(); it++){
377 it->second->print_link_status();
379 XBT_DEBUG(">>>>>================================<<<<<");
383 const vector<GTNETS_Node*>& GTNETS_Topology::nodes(){
387 const map<int, GTNETS_Link*>& GTNETS_Topology::links(){