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 }}} // namespace simgrid::kernel::routing
35 /* ************************************************************************** */
36 /* *********************** GENERIC BUSINESS METHODS ************************* */
38 static const char *instr_node_name(xbt_node_t node)
40 void *data = xbt_graph_node_get_data(node);
41 char *str = (char *) data;
45 xbt_node_t new_xbt_graph_node(xbt_graph_t graph, const char *name, xbt_dict_t nodes)
47 xbt_node_t ret = (xbt_node_t) xbt_dict_get_or_null(nodes, name);
51 ret = xbt_graph_new_node(graph, xbt_strdup(name));
52 xbt_dict_set(nodes, name, ret, nullptr);
56 xbt_edge_t new_xbt_graph_edge(xbt_graph_t graph, xbt_node_t s, xbt_node_t d, xbt_dict_t edges)
58 const char *sn = instr_node_name(s);
59 const char *dn = instr_node_name(d);
60 int len = strlen(sn) + strlen(dn) + 1;
61 char *name = (char *) xbt_malloc(len * sizeof(char));
63 snprintf(name, len, "%s%s", sn, dn);
64 xbt_edge_t ret = (xbt_edge_t) xbt_dict_get_or_null(edges, name);
66 snprintf(name, len, "%s%s", dn, sn);
67 ret = (xbt_edge_t) xbt_dict_get_or_null(edges, name);
71 ret = xbt_graph_new_edge(graph, s, d, nullptr);
72 xbt_dict_set(edges, name, ret, nullptr);
82 void AsRoutedGraph::getOneLinkRoutes(std::vector<Onelink*>* accumulator)
84 sg_platf_route_cbarg_t route = xbt_new0(s_sg_platf_route_cbarg_t, 1);
85 route->link_list = new std::vector<Link*>();
87 int table_size = static_cast<int>(vertices_.size());
88 for (int src = 0; src < table_size; src++) {
89 for (int dst = 0; dst < table_size; dst++) {
90 route->link_list->clear();
91 NetCard* src_elm = vertices_.at(src);
92 NetCard* dst_elm = vertices_.at(dst);
93 this->getRouteAndLatency(src_elm, dst_elm, route, nullptr);
95 if (route->link_list->size() == 1) {
96 Link* link = route->link_list->at(0);
98 if (hierarchy_ == RoutingMode::base)
99 onelink = new Onelink(link, src_elm, dst_elm);
100 else if (hierarchy_ == RoutingMode::recursive)
101 onelink = new Onelink(link, route->gw_src, route->gw_dst);
103 onelink = new Onelink(link, nullptr, nullptr);
104 accumulator->push_back(onelink);
108 AsImpl::getOneLinkRoutes(accumulator); // Recursivly call this function on all my childs too
111 void AsRoutedGraph::getGraph(xbt_graph_t graph, xbt_dict_t nodes, xbt_dict_t edges)
113 for (auto my_src: vertices_){
114 for (auto my_dst: vertices_){
115 if (my_src == my_dst)
118 sg_platf_route_cbarg_t route = xbt_new0(s_sg_platf_route_cbarg_t, 1);
119 route->link_list = new std::vector<Link*>();
121 getRouteAndLatency(my_src, my_dst, route, nullptr);
123 XBT_DEBUG("get_route_and_latency %s -> %s", my_src->name().c_str(), my_dst->name().c_str());
125 xbt_node_t current, previous;
126 const char *previous_name, *current_name;
129 previous = new_xbt_graph_node(graph, route->gw_src->name().c_str(), nodes);
130 previous_name = route->gw_src->name().c_str();
132 previous = new_xbt_graph_node(graph, my_src->name().c_str(), nodes);
133 previous_name = my_src->name().c_str();
136 for (auto link: *route->link_list) {
137 const char *link_name = link->getName();
138 current = new_xbt_graph_node(graph, link_name, nodes);
139 current_name = link_name;
140 new_xbt_graph_edge(graph, previous, current, edges);
141 XBT_DEBUG (" %s -> %s", previous_name, current_name);
143 previous_name = current_name;
147 current = new_xbt_graph_node(graph, route->gw_dst->name().c_str(), nodes);
148 current_name = route->gw_dst->name().c_str();
150 current = new_xbt_graph_node(graph, my_dst->name().c_str(), nodes);
151 current_name = my_dst->name().c_str();
153 new_xbt_graph_edge(graph, previous, current, edges);
154 XBT_DEBUG (" %s -> %s", previous_name, current_name);
156 delete route->link_list;
162 /* ************************************************************************** */
163 /* ************************* GENERIC AUX FUNCTIONS ************************** */
164 /* change a route containing link names into a route containing link entities */
165 sg_platf_route_cbarg_t AsRoutedGraph::newExtendedRoute(RoutingMode hierarchy, sg_platf_route_cbarg_t routearg, int change_order)
167 sg_platf_route_cbarg_t result;
169 result = xbt_new0(s_sg_platf_route_cbarg_t, 1);
170 result->link_list = new std::vector<Link*>();
172 xbt_assert(hierarchy == RoutingMode::base || hierarchy == RoutingMode::recursive,
173 "The hierarchy of this AS is neither BASIC nor RECURSIVE, I'm lost here.");
175 if (hierarchy == RoutingMode::recursive) {
176 xbt_assert(routearg->gw_src && routearg->gw_dst, "nullptr is obviously a deficient gateway");
178 result->gw_src = routearg->gw_src;
179 result->gw_dst = routearg->gw_dst;
182 for (auto link : *routearg->link_list) {
184 result->link_list->push_back(link);
186 result->link_list->insert(result->link_list->begin(), link);
192 void AsRoutedGraph::getRouteCheckParams(NetCard *src, NetCard *dst)
194 xbt_assert(src, "Cannot find a route from nullptr to %s", dst->name().c_str());
195 xbt_assert(dst, "Cannot find a route from %s to nullptr", src->name().c_str());
197 As *src_as = src->containingAS();
198 As *dst_as = dst->containingAS();
200 xbt_assert(src_as == dst_as,
201 "Internal error: %s@%s and %s@%s are not in the same AS as expected. Please report that bug.",
202 src->name().c_str(), src_as->name(), dst->name().c_str(), dst_as->name());
204 xbt_assert(this == dst_as, "Internal error: route destination %s@%s is not in AS %s as expected (route source: "
205 "%s@%s). Please report that bug.",
206 src->name().c_str(), dst->name().c_str(), src_as->name(), dst_as->name(), name());
208 void AsRoutedGraph::addRouteCheckParams(sg_platf_route_cbarg_t route) {
209 NetCard *src = route->src;
210 NetCard *dst = route->dst;
211 const char* srcName = src->name().c_str();
212 const char* dstName = dst->name().c_str();
214 if(!route->gw_dst && !route->gw_src) {
215 XBT_DEBUG("Load Route from \"%s\" to \"%s\"", srcName, dstName);
216 xbt_assert(src, "Cannot add a route from %s to %s: %s does not exist.", srcName, dstName, srcName);
217 xbt_assert(dst, "Cannot add a route from %s to %s: %s does not exist.", srcName, dstName, dstName);
218 xbt_assert(! route->link_list->empty(), "Empty route (between %s and %s) forbidden.", srcName, dstName);
219 xbt_assert(! src->isAS(), "When defining a route, src cannot be an AS such as '%s'. Did you meant to have an ASroute?", srcName);
220 xbt_assert(! dst->isAS(), "When defining a route, dst cannot be an AS such as '%s'. Did you meant to have an ASroute?", dstName);
222 XBT_DEBUG("Load ASroute from %s@%s to %s@%s", srcName, route->gw_src->name().c_str(), dstName,
223 route->gw_dst->name().c_str());
224 xbt_assert(src->isAS(), "When defining an ASroute, src must be an AS but '%s' is not", srcName);
225 xbt_assert(dst->isAS(), "When defining an ASroute, dst must be an AS but '%s' is not", dstName);
227 xbt_assert(route->gw_src->isHost() || route->gw_src->isRouter(),
228 "When defining an ASroute, gw_src must be an host or a router but '%s' is not.", srcName);
229 xbt_assert(route->gw_dst->isHost() || route->gw_dst->isRouter(),
230 "When defining an ASroute, gw_dst must be an host or a router but '%s' is not.", dstName);
232 xbt_assert(route->gw_src != route->gw_dst, "Cannot define an ASroute from '%s' to itself",
233 route->gw_src->name().c_str());
235 xbt_assert(src, "Cannot add a route from %s@%s to %s@%s: %s does not exist.", srcName,
236 route->gw_src->name().c_str(), dstName, route->gw_dst->name().c_str(), srcName);
237 xbt_assert(dst, "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(), dstName);
239 xbt_assert(!route->link_list->empty(), "Empty route (between %s@%s and %s@%s) forbidden.", srcName,
240 route->gw_src->name().c_str(), dstName, route->gw_dst->name().c_str());