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;
26 /* ************************************************************************** */
27 /* *********************** GENERIC BUSINESS METHODS ************************* */
29 static const char *instr_node_name(xbt_node_t node)
31 void *data = xbt_graph_node_get_data(node);
32 char *str = (char *) data;
36 xbt_node_t new_xbt_graph_node(xbt_graph_t graph, const char *name, xbt_dict_t nodes)
38 xbt_node_t ret = (xbt_node_t) xbt_dict_get_or_null(nodes, name);
42 ret = xbt_graph_new_node(graph, xbt_strdup(name));
43 xbt_dict_set(nodes, name, ret, nullptr);
47 xbt_edge_t new_xbt_graph_edge(xbt_graph_t graph, xbt_node_t s, xbt_node_t d, xbt_dict_t edges)
49 const char *sn = instr_node_name(s);
50 const char *dn = instr_node_name(d);
51 int len = strlen(sn) + strlen(dn) + 1;
52 char *name = (char *) xbt_malloc(len * sizeof(char));
54 snprintf(name, len, "%s%s", sn, dn);
55 xbt_edge_t ret = (xbt_edge_t) xbt_dict_get_or_null(edges, name);
57 snprintf(name, len, "%s%s", dn, sn);
58 ret = (xbt_edge_t) xbt_dict_get_or_null(edges, name);
62 ret = xbt_graph_new_edge(graph, s, d, nullptr);
63 xbt_dict_set(edges, name, ret, nullptr);
73 AsRoutedGraph::AsRoutedGraph(As* father, const char* name) : AsImpl(father, name)
77 void AsRoutedGraph::getOneLinkRoutes(std::vector<Onelink*>* accumulator)
79 sg_platf_route_cbarg_t route = xbt_new0(s_sg_platf_route_cbarg_t, 1);
80 route->link_list = new std::vector<Link*>();
82 int table_size = static_cast<int>(vertices_.size());
83 for (int src = 0; src < table_size; src++) {
84 for (int dst = 0; dst < table_size; dst++) {
85 route->link_list->clear();
86 NetCard* src_elm = vertices_.at(src);
87 NetCard* dst_elm = vertices_.at(dst);
88 getLocalRoute(src_elm, dst_elm, route, nullptr);
90 if (route->link_list->size() == 1) {
91 Link* link = route->link_list->at(0);
92 if (hierarchy_ == RoutingMode::base)
93 accumulator->push_back(new Onelink(link, src_elm, dst_elm));
94 else if (hierarchy_ == RoutingMode::recursive)
95 accumulator->push_back(new Onelink(link, route->gw_src, route->gw_dst));
97 accumulator->push_back(new Onelink(link, nullptr, nullptr));
101 AsImpl::getOneLinkRoutes(accumulator); // Recursivly call this function on all my childs too
104 void AsRoutedGraph::getGraph(xbt_graph_t graph, xbt_dict_t nodes, xbt_dict_t edges)
106 for (auto my_src: vertices_){
107 for (auto my_dst: vertices_){
108 if (my_src == my_dst)
111 sg_platf_route_cbarg_t route = xbt_new0(s_sg_platf_route_cbarg_t, 1);
112 route->link_list = new std::vector<Link*>();
114 getLocalRoute(my_src, my_dst, route, nullptr);
116 XBT_DEBUG("get_route_and_latency %s -> %s", my_src->cname(), my_dst->cname());
118 xbt_node_t current, previous;
119 const char *previous_name, *current_name;
122 previous = new_xbt_graph_node(graph, route->gw_src->cname(), nodes);
123 previous_name = route->gw_src->cname();
125 previous = new_xbt_graph_node(graph, my_src->cname(), nodes);
126 previous_name = my_src->cname();
129 for (auto link: *route->link_list) {
130 const char *link_name = link->getName();
131 current = new_xbt_graph_node(graph, link_name, nodes);
132 current_name = link_name;
133 new_xbt_graph_edge(graph, previous, current, edges);
134 XBT_DEBUG (" %s -> %s", previous_name, current_name);
136 previous_name = current_name;
140 current = new_xbt_graph_node(graph, route->gw_dst->cname(), nodes);
141 current_name = route->gw_dst->cname();
143 current = new_xbt_graph_node(graph, my_dst->cname(), nodes);
144 current_name = my_dst->cname();
146 new_xbt_graph_edge(graph, previous, current, edges);
147 XBT_DEBUG (" %s -> %s", previous_name, current_name);
149 delete route->link_list;
155 /* ************************************************************************** */
156 /* ************************* GENERIC AUX FUNCTIONS ************************** */
157 /* change a route containing link names into a route containing link entities */
158 sg_platf_route_cbarg_t AsRoutedGraph::newExtendedRoute(RoutingMode hierarchy, sg_platf_route_cbarg_t routearg, int change_order)
160 sg_platf_route_cbarg_t result;
162 result = xbt_new0(s_sg_platf_route_cbarg_t, 1);
163 result->link_list = new std::vector<Link*>();
165 xbt_assert(hierarchy == RoutingMode::base || hierarchy == RoutingMode::recursive,
166 "The hierarchy of this AS is neither BASIC nor RECURSIVE, I'm lost here.");
168 if (hierarchy == RoutingMode::recursive) {
169 xbt_assert(routearg->gw_src && routearg->gw_dst, "nullptr is obviously a deficient gateway");
171 result->gw_src = routearg->gw_src;
172 result->gw_dst = routearg->gw_dst;
175 for (auto link : *routearg->link_list) {
177 result->link_list->push_back(link);
179 result->link_list->insert(result->link_list->begin(), link);
185 void AsRoutedGraph::getRouteCheckParams(NetCard *src, NetCard *dst)
187 xbt_assert(src, "Cannot find a route from nullptr to %s", dst->cname());
188 xbt_assert(dst, "Cannot find a route from %s to nullptr", src->cname());
190 As *src_as = src->containingAS();
191 As *dst_as = dst->containingAS();
193 xbt_assert(src_as == dst_as,
194 "Internal error: %s@%s and %s@%s are not in the same AS as expected. Please report that bug.",
195 src->cname(), src_as->name(), dst->cname(), dst_as->name());
197 xbt_assert(this == dst_as, "Internal error: route destination %s@%s is not in AS %s as expected (route source: "
198 "%s@%s). Please report that bug.",
199 src->cname(), dst->cname(), src_as->name(), dst_as->name(), name());
201 void AsRoutedGraph::addRouteCheckParams(sg_platf_route_cbarg_t route) {
202 NetCard *src = route->src;
203 NetCard *dst = route->dst;
204 const char* srcName = src->cname();
205 const char* dstName = dst->cname();
207 if(!route->gw_dst && !route->gw_src) {
208 XBT_DEBUG("Load Route from \"%s\" to \"%s\"", srcName, dstName);
209 xbt_assert(src, "Cannot add a route from %s to %s: %s does not exist.", srcName, dstName, srcName);
210 xbt_assert(dst, "Cannot add a route from %s to %s: %s does not exist.", srcName, dstName, dstName);
211 xbt_assert(! route->link_list->empty(), "Empty route (between %s and %s) forbidden.", srcName, dstName);
212 xbt_assert(! src->isAS(), "When defining a route, src cannot be an AS such as '%s'. Did you meant to have an ASroute?", srcName);
213 xbt_assert(! dst->isAS(), "When defining a route, dst cannot be an AS such as '%s'. Did you meant to have an ASroute?", dstName);
215 XBT_DEBUG("Load ASroute from %s@%s to %s@%s", srcName, route->gw_src->cname(), dstName, route->gw_dst->cname());
216 xbt_assert(src->isAS(), "When defining an ASroute, src must be an AS but '%s' is not", srcName);
217 xbt_assert(dst->isAS(), "When defining an ASroute, dst must be an AS but '%s' is not", dstName);
219 xbt_assert(route->gw_src->isHost() || route->gw_src->isRouter(),
220 "When defining an ASroute, gw_src must be an host or a router but '%s' is not.", srcName);
221 xbt_assert(route->gw_dst->isHost() || route->gw_dst->isRouter(),
222 "When defining an ASroute, gw_dst must be an host or a router but '%s' is not.", dstName);
224 xbt_assert(route->gw_src != route->gw_dst, "Cannot define an ASroute from '%s' to itself", route->gw_src->cname());
226 xbt_assert(src, "Cannot add a route from %s@%s to %s@%s: %s does not exist.", srcName, route->gw_src->cname(),
227 dstName, route->gw_dst->cname(), srcName);
228 xbt_assert(dst, "Cannot add a route from %s@%s to %s@%s: %s does not exist.", srcName, route->gw_src->cname(),
229 dstName, route->gw_dst->cname(), dstName);
230 xbt_assert(!route->link_list->empty(), "Empty route (between %s@%s and %s@%s) forbidden.", srcName,
231 route->gw_src->cname(), dstName, route->gw_dst->cname());