1 /* Copyright (c) 2009-2016. The SimGrid Team. 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. */
8 #include "xbt/sysdep.h"
10 #include "xbt/graph.h"
12 #include "src/kernel/routing/AsRoutedGraph.hpp"
13 #include "src/surf/network_interface.hpp"
15 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_routing_generic, surf_route, "Generic implementation of the surf routing");
17 void routing_route_free(sg_platf_route_cbarg_t route)
20 delete route->link_list;
29 AsRoutedGraph::AsRoutedGraph(As* father, const char* name) : AsImpl(father, name)
33 AsRoutedGraph::~AsRoutedGraph()=default;
35 }}} // namespace simgrid::kernel::routing
37 /* ************************************************************************** */
38 /* *********************** GENERIC BUSINESS METHODS ************************* */
40 static const char *instr_node_name(xbt_node_t node)
42 void *data = xbt_graph_node_get_data(node);
43 char *str = (char *) data;
47 xbt_node_t new_xbt_graph_node(xbt_graph_t graph, const char *name, xbt_dict_t nodes)
49 xbt_node_t ret = (xbt_node_t) xbt_dict_get_or_null(nodes, name);
53 ret = xbt_graph_new_node(graph, xbt_strdup(name));
54 xbt_dict_set(nodes, name, ret, nullptr);
58 xbt_edge_t new_xbt_graph_edge(xbt_graph_t graph, xbt_node_t s, xbt_node_t d, xbt_dict_t edges)
60 const char *sn = instr_node_name(s);
61 const char *dn = instr_node_name(d);
62 int len = strlen(sn) + strlen(dn) + 1;
63 char *name = (char *) xbt_malloc(len * sizeof(char));
65 snprintf(name, len, "%s%s", sn, dn);
66 xbt_edge_t ret = (xbt_edge_t) xbt_dict_get_or_null(edges, name);
68 snprintf(name, len, "%s%s", dn, sn);
69 ret = (xbt_edge_t) xbt_dict_get_or_null(edges, name);
73 ret = xbt_graph_new_edge(graph, s, d, nullptr);
74 xbt_dict_set(edges, name, ret, nullptr);
84 void AsRoutedGraph::getOneLinkRoutes(std::vector<Onelink*>* accumulator)
86 sg_platf_route_cbarg_t route = xbt_new0(s_sg_platf_route_cbarg_t, 1);
87 route->link_list = new std::vector<Link*>();
89 int table_size = static_cast<int>(vertices_.size());
90 for (int src = 0; src < table_size; src++) {
91 for (int dst = 0; dst < table_size; dst++) {
92 route->link_list->clear();
93 NetCard* src_elm = vertices_.at(src);
94 NetCard* dst_elm = vertices_.at(dst);
95 this->getRouteAndLatency(src_elm, dst_elm, route, nullptr);
97 if (route->link_list->size() == 1) {
98 Link* link = route->link_list->at(0);
100 if (hierarchy_ == RoutingMode::base)
101 onelink = new Onelink(link, src_elm, dst_elm);
102 else if (hierarchy_ == RoutingMode::recursive)
103 onelink = new Onelink(link, route->gw_src, route->gw_dst);
105 onelink = new Onelink(link, nullptr, nullptr);
106 accumulator->push_back(onelink);
110 AsImpl::getOneLinkRoutes(accumulator); // Recursivly call this function on all my childs too
113 void AsRoutedGraph::getGraph(xbt_graph_t graph, xbt_dict_t nodes, xbt_dict_t edges)
115 for (auto my_src: vertices_){
116 for (auto my_dst: vertices_){
117 if (my_src == my_dst)
120 sg_platf_route_cbarg_t route = xbt_new0(s_sg_platf_route_cbarg_t, 1);
121 route->link_list = new std::vector<Link*>();
123 getRouteAndLatency(my_src, my_dst, route, nullptr);
125 XBT_DEBUG("get_route_and_latency %s -> %s", my_src->name().c_str(), my_dst->name().c_str());
127 xbt_node_t current, previous;
128 const char *previous_name, *current_name;
131 previous = new_xbt_graph_node(graph, route->gw_src->name().c_str(), nodes);
132 previous_name = route->gw_src->name().c_str();
134 previous = new_xbt_graph_node(graph, my_src->name().c_str(), nodes);
135 previous_name = my_src->name().c_str();
138 for (auto link: *route->link_list) {
139 const char *link_name = link->getName();
140 current = new_xbt_graph_node(graph, link_name, nodes);
141 current_name = link_name;
142 new_xbt_graph_edge(graph, previous, current, edges);
143 XBT_DEBUG (" %s -> %s", previous_name, current_name);
145 previous_name = current_name;
149 current = new_xbt_graph_node(graph, route->gw_dst->name().c_str(), nodes);
150 current_name = route->gw_dst->name().c_str();
152 current = new_xbt_graph_node(graph, my_dst->name().c_str(), nodes);
153 current_name = my_dst->name().c_str();
155 new_xbt_graph_edge(graph, previous, current, edges);
156 XBT_DEBUG (" %s -> %s", previous_name, current_name);
158 delete route->link_list;
164 /* ************************************************************************** */
165 /* ************************* GENERIC AUX FUNCTIONS ************************** */
166 /* change a route containing link names into a route containing link entities */
167 sg_platf_route_cbarg_t AsRoutedGraph::newExtendedRoute(RoutingMode hierarchy, sg_platf_route_cbarg_t routearg, int change_order)
169 sg_platf_route_cbarg_t result;
171 result = xbt_new0(s_sg_platf_route_cbarg_t, 1);
172 result->link_list = new std::vector<Link*>();
174 xbt_assert(hierarchy == RoutingMode::base || hierarchy == RoutingMode::recursive,
175 "The hierarchy of this AS is neither BASIC nor RECURSIVE, I'm lost here.");
177 if (hierarchy == RoutingMode::recursive) {
178 xbt_assert(routearg->gw_src && routearg->gw_dst, "nullptr is obviously a deficient gateway");
180 result->gw_src = routearg->gw_src;
181 result->gw_dst = routearg->gw_dst;
184 for (auto link : *routearg->link_list) {
186 result->link_list->push_back(link);
188 result->link_list->insert(result->link_list->begin(), link);
194 void AsRoutedGraph::getRouteCheckParams(NetCard *src, NetCard *dst)
196 xbt_assert(src, "Cannot find a route from nullptr to %s", dst->name().c_str());
197 xbt_assert(dst, "Cannot find a route from %s to nullptr", src->name().c_str());
199 As *src_as = src->containingAS();
200 As *dst_as = dst->containingAS();
202 xbt_assert(src_as == dst_as,
203 "Internal error: %s@%s and %s@%s are not in the same AS as expected. Please report that bug.",
204 src->name().c_str(), src_as->name(), dst->name().c_str(), dst_as->name());
206 xbt_assert(this == dst_as, "Internal error: route destination %s@%s is not in AS %s as expected (route source: "
207 "%s@%s). Please report that bug.",
208 src->name().c_str(), dst->name().c_str(), src_as->name(), dst_as->name(), name());
210 void AsRoutedGraph::addRouteCheckParams(sg_platf_route_cbarg_t route) {
211 NetCard *src = route->src;
212 NetCard *dst = route->dst;
213 const char* srcName = src->name().c_str();
214 const char* dstName = dst->name().c_str();
216 if(!route->gw_dst && !route->gw_src) {
217 XBT_DEBUG("Load Route from \"%s\" to \"%s\"", srcName, dstName);
218 xbt_assert(src, "Cannot add a route from %s to %s: %s does not exist.", srcName, dstName, srcName);
219 xbt_assert(dst, "Cannot add a route from %s to %s: %s does not exist.", srcName, dstName, dstName);
220 xbt_assert(! route->link_list->empty(), "Empty route (between %s and %s) forbidden.", srcName, dstName);
221 xbt_assert(! src->isAS(), "When defining a route, src cannot be an AS such as '%s'. Did you meant to have an ASroute?", srcName);
222 xbt_assert(! dst->isAS(), "When defining a route, dst cannot be an AS such as '%s'. Did you meant to have an ASroute?", dstName);
224 XBT_DEBUG("Load ASroute from %s@%s to %s@%s", srcName, route->gw_src->name().c_str(), dstName,
225 route->gw_dst->name().c_str());
226 xbt_assert(src->isAS(), "When defining an ASroute, src must be an AS but '%s' is not", srcName);
227 xbt_assert(dst->isAS(), "When defining an ASroute, dst must be an AS but '%s' is not", dstName);
229 xbt_assert(route->gw_src->isHost() || route->gw_src->isRouter(),
230 "When defining an ASroute, gw_src must be an host or a router but '%s' is not.", srcName);
231 xbt_assert(route->gw_dst->isHost() || route->gw_dst->isRouter(),
232 "When defining an ASroute, gw_dst must be an host or a router but '%s' is not.", dstName);
234 xbt_assert(route->gw_src != route->gw_dst, "Cannot define an ASroute from '%s' to itself",
235 route->gw_src->name().c_str());
237 xbt_assert(src, "Cannot add a route from %s@%s to %s@%s: %s does not exist.", srcName,
238 route->gw_src->name().c_str(), dstName, route->gw_dst->name().c_str(), srcName);
239 xbt_assert(dst, "Cannot add a route from %s@%s to %s@%s: %s does not exist.", srcName,
240 route->gw_src->name().c_str(), dstName, route->gw_dst->name().c_str(), dstName);
241 xbt_assert(!route->link_list->empty(), "Empty route (between %s@%s and %s@%s) forbidden.", srcName,
242 route->gw_src->name().c_str(), dstName, route->gw_dst->name().c_str());