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/kernel/routing/NetCard.hpp"
14 #include "src/surf/network_interface.hpp"
16 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_routing_generic, surf_route, "Generic implementation of the surf routing");
18 void routing_route_free(sg_platf_route_cbarg_t route)
21 delete route->link_list;
30 AsRoutedGraph::AsRoutedGraph(As* father, const char* name) : AsImpl(father, name)
34 }}} // namespace simgrid::kernel::routing
36 /* ************************************************************************** */
37 /* *********************** GENERIC BUSINESS METHODS ************************* */
39 static const char *instr_node_name(xbt_node_t node)
41 void *data = xbt_graph_node_get_data(node);
42 char *str = (char *) data;
46 xbt_node_t new_xbt_graph_node(xbt_graph_t graph, const char *name, xbt_dict_t nodes)
48 xbt_node_t ret = (xbt_node_t) xbt_dict_get_or_null(nodes, name);
52 ret = xbt_graph_new_node(graph, xbt_strdup(name));
53 xbt_dict_set(nodes, name, ret, nullptr);
57 xbt_edge_t new_xbt_graph_edge(xbt_graph_t graph, xbt_node_t s, xbt_node_t d, xbt_dict_t edges)
59 const char *sn = instr_node_name(s);
60 const char *dn = instr_node_name(d);
61 int len = strlen(sn) + strlen(dn) + 1;
62 char *name = (char *) xbt_malloc(len * sizeof(char));
64 snprintf(name, len, "%s%s", sn, dn);
65 xbt_edge_t ret = (xbt_edge_t) xbt_dict_get_or_null(edges, name);
67 snprintf(name, len, "%s%s", dn, sn);
68 ret = (xbt_edge_t) xbt_dict_get_or_null(edges, name);
72 ret = xbt_graph_new_edge(graph, s, d, nullptr);
73 xbt_dict_set(edges, name, ret, nullptr);
83 void AsRoutedGraph::getOneLinkRoutes(std::vector<Onelink*>* accumulator)
85 sg_platf_route_cbarg_t route = xbt_new0(s_sg_platf_route_cbarg_t, 1);
86 route->link_list = new std::vector<Link*>();
88 int table_size = static_cast<int>(vertices_.size());
89 for (int src = 0; src < table_size; src++) {
90 for (int dst = 0; dst < table_size; dst++) {
91 route->link_list->clear();
92 NetCard* src_elm = vertices_.at(src);
93 NetCard* dst_elm = vertices_.at(dst);
94 this->getLocalRoute(src_elm, dst_elm, route, nullptr);
96 if (route->link_list->size() == 1) {
97 Link* link = route->link_list->at(0);
99 if (hierarchy_ == RoutingMode::base)
100 onelink = new Onelink(link, src_elm, dst_elm);
101 else if (hierarchy_ == RoutingMode::recursive)
102 onelink = new Onelink(link, route->gw_src, route->gw_dst);
104 onelink = new Onelink(link, nullptr, nullptr);
105 accumulator->push_back(onelink);
109 AsImpl::getOneLinkRoutes(accumulator); // Recursivly call this function on all my childs too
112 void AsRoutedGraph::getGraph(xbt_graph_t graph, xbt_dict_t nodes, xbt_dict_t edges)
114 for (auto my_src: vertices_){
115 for (auto my_dst: vertices_){
116 if (my_src == my_dst)
119 sg_platf_route_cbarg_t route = xbt_new0(s_sg_platf_route_cbarg_t, 1);
120 route->link_list = new std::vector<Link*>();
122 getLocalRoute(my_src, my_dst, route, nullptr);
124 XBT_DEBUG("get_route_and_latency %s -> %s", my_src->name().c_str(), my_dst->name().c_str());
126 xbt_node_t current, previous;
127 const char *previous_name, *current_name;
130 previous = new_xbt_graph_node(graph, route->gw_src->name().c_str(), nodes);
131 previous_name = route->gw_src->name().c_str();
133 previous = new_xbt_graph_node(graph, my_src->name().c_str(), nodes);
134 previous_name = my_src->name().c_str();
137 for (auto link: *route->link_list) {
138 const char *link_name = link->getName();
139 current = new_xbt_graph_node(graph, link_name, nodes);
140 current_name = link_name;
141 new_xbt_graph_edge(graph, previous, current, edges);
142 XBT_DEBUG (" %s -> %s", previous_name, current_name);
144 previous_name = current_name;
148 current = new_xbt_graph_node(graph, route->gw_dst->name().c_str(), nodes);
149 current_name = route->gw_dst->name().c_str();
151 current = new_xbt_graph_node(graph, my_dst->name().c_str(), nodes);
152 current_name = my_dst->name().c_str();
154 new_xbt_graph_edge(graph, previous, current, edges);
155 XBT_DEBUG (" %s -> %s", previous_name, current_name);
157 delete route->link_list;
163 /* ************************************************************************** */
164 /* ************************* GENERIC AUX FUNCTIONS ************************** */
165 /* change a route containing link names into a route containing link entities */
166 sg_platf_route_cbarg_t AsRoutedGraph::newExtendedRoute(RoutingMode hierarchy, sg_platf_route_cbarg_t routearg, int change_order)
168 sg_platf_route_cbarg_t result;
170 result = xbt_new0(s_sg_platf_route_cbarg_t, 1);
171 result->link_list = new std::vector<Link*>();
173 xbt_assert(hierarchy == RoutingMode::base || hierarchy == RoutingMode::recursive,
174 "The hierarchy of this AS is neither BASIC nor RECURSIVE, I'm lost here.");
176 if (hierarchy == RoutingMode::recursive) {
177 xbt_assert(routearg->gw_src && routearg->gw_dst, "nullptr is obviously a deficient gateway");
179 result->gw_src = routearg->gw_src;
180 result->gw_dst = routearg->gw_dst;
183 for (auto link : *routearg->link_list) {
185 result->link_list->push_back(link);
187 result->link_list->insert(result->link_list->begin(), link);
193 void AsRoutedGraph::getRouteCheckParams(NetCard *src, NetCard *dst)
195 xbt_assert(src, "Cannot find a route from nullptr to %s", dst->name().c_str());
196 xbt_assert(dst, "Cannot find a route from %s to nullptr", src->name().c_str());
198 As *src_as = src->containingAS();
199 As *dst_as = dst->containingAS();
201 xbt_assert(src_as == dst_as,
202 "Internal error: %s@%s and %s@%s are not in the same AS as expected. Please report that bug.",
203 src->name().c_str(), src_as->name(), dst->name().c_str(), dst_as->name());
205 xbt_assert(this == dst_as, "Internal error: route destination %s@%s is not in AS %s as expected (route source: "
206 "%s@%s). Please report that bug.",
207 src->name().c_str(), dst->name().c_str(), src_as->name(), dst_as->name(), name());
209 void AsRoutedGraph::addRouteCheckParams(sg_platf_route_cbarg_t route) {
210 NetCard *src = route->src;
211 NetCard *dst = route->dst;
212 const char* srcName = src->name().c_str();
213 const char* dstName = dst->name().c_str();
215 if(!route->gw_dst && !route->gw_src) {
216 XBT_DEBUG("Load Route from \"%s\" to \"%s\"", srcName, dstName);
217 xbt_assert(src, "Cannot add a route from %s to %s: %s does not exist.", srcName, dstName, srcName);
218 xbt_assert(dst, "Cannot add a route from %s to %s: %s does not exist.", srcName, dstName, dstName);
219 xbt_assert(! route->link_list->empty(), "Empty route (between %s and %s) forbidden.", srcName, dstName);
220 xbt_assert(! src->isAS(), "When defining a route, src cannot be an AS such as '%s'. Did you meant to have an ASroute?", srcName);
221 xbt_assert(! dst->isAS(), "When defining a route, dst cannot be an AS such as '%s'. Did you meant to have an ASroute?", dstName);
223 XBT_DEBUG("Load ASroute from %s@%s to %s@%s", srcName, route->gw_src->name().c_str(), dstName,
224 route->gw_dst->name().c_str());
225 xbt_assert(src->isAS(), "When defining an ASroute, src must be an AS but '%s' is not", srcName);
226 xbt_assert(dst->isAS(), "When defining an ASroute, dst must be an AS but '%s' is not", dstName);
228 xbt_assert(route->gw_src->isHost() || route->gw_src->isRouter(),
229 "When defining an ASroute, gw_src must be an host or a router but '%s' is not.", srcName);
230 xbt_assert(route->gw_dst->isHost() || route->gw_dst->isRouter(),
231 "When defining an ASroute, gw_dst must be an host or a router but '%s' is not.", dstName);
233 xbt_assert(route->gw_src != route->gw_dst, "Cannot define an ASroute from '%s' to itself",
234 route->gw_src->name().c_str());
236 xbt_assert(src, "Cannot add a route from %s@%s to %s@%s: %s does not exist.", srcName,
237 route->gw_src->name().c_str(), dstName, route->gw_dst->name().c_str(), srcName);
238 xbt_assert(dst, "Cannot add a route from %s@%s to %s@%s: %s does not exist.", srcName,
239 route->gw_src->name().c_str(), dstName, route->gw_dst->name().c_str(), dstName);
240 xbt_assert(!route->link_list->empty(), "Empty route (between %s@%s and %s@%s) forbidden.", srcName,
241 route->gw_src->name().c_str(), dstName, route->gw_dst->name().c_str());