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(const char*name)
34 AsRoutedGraph::~AsRoutedGraph()
39 }}} // namespace simgrid::kernel::routing
41 /* ************************************************************************** */
42 /* *********************** GENERIC BUSINESS METHODS ************************* */
44 static const char *instr_node_name(xbt_node_t node)
46 void *data = xbt_graph_node_get_data(node);
47 char *str = (char *) data;
51 xbt_node_t new_xbt_graph_node(xbt_graph_t graph, const char *name, xbt_dict_t nodes)
53 xbt_node_t ret = (xbt_node_t) xbt_dict_get_or_null(nodes, name);
57 ret = xbt_graph_new_node(graph, xbt_strdup(name));
58 xbt_dict_set(nodes, name, ret, nullptr);
62 xbt_edge_t new_xbt_graph_edge(xbt_graph_t graph, xbt_node_t s, xbt_node_t d, xbt_dict_t edges)
64 const char *sn = instr_node_name(s);
65 const char *dn = instr_node_name(d);
66 int len = strlen(sn) + strlen(dn) + 1;
67 char *name = (char *) xbt_malloc(len * sizeof(char));
70 snprintf(name, len, "%s%s", sn, dn);
71 xbt_edge_t ret = (xbt_edge_t) xbt_dict_get_or_null(edges, name);
73 snprintf(name, len, "%s%s", dn, sn);
74 ret = (xbt_edge_t) xbt_dict_get_or_null(edges, name);
78 ret = xbt_graph_new_edge(graph, s, d, nullptr);
79 xbt_dict_set(edges, name, ret, nullptr);
89 xbt_dynar_t AsRoutedGraph::getOneLinkRoutes()
91 xbt_dynar_t ret = xbt_dynar_new(sizeof(Onelink*), xbt_free_f);
92 sg_platf_route_cbarg_t route = xbt_new0(s_sg_platf_route_cbarg_t,1);
93 route->link_list = new std::vector<Link*>();
95 int table_size = (int)xbt_dynar_length(vertices_);
96 for(int src=0; src < table_size; src++) {
97 for(int dst=0; dst< table_size; dst++) {
98 route->link_list->clear();
99 NetCard *src_elm = xbt_dynar_get_as(vertices_, src, NetCard*);
100 NetCard *dst_elm = xbt_dynar_get_as(vertices_, dst, NetCard*);
101 this->getRouteAndLatency(src_elm, dst_elm,route, nullptr);
103 if (route->link_list->size() == 1) {
104 Link *link = route->link_list->at(0);
106 if (hierarchy_ == RoutingMode::base)
107 onelink = new Onelink(link, src_elm, dst_elm);
108 else if (hierarchy_ == RoutingMode::recursive)
109 onelink = new Onelink(link, route->gw_src, route->gw_dst);
111 onelink = new Onelink(link, nullptr, nullptr);
112 xbt_dynar_push(ret, &onelink);
119 void AsRoutedGraph::getGraph(xbt_graph_t graph, xbt_dict_t nodes, xbt_dict_t edges)
122 int table_size = xbt_dynar_length(vertices_);
125 for (src = 0; src < table_size; src++) {
127 xbt_dynar_get_as(vertices_, src, NetCard*);
128 for (dst = 0; dst < table_size; dst++) {
132 xbt_dynar_get_as(vertices_, dst, NetCard*);
134 sg_platf_route_cbarg_t route = xbt_new0(s_sg_platf_route_cbarg_t, 1);
135 route->link_list = new std::vector<Link*>();
137 getRouteAndLatency(my_src, my_dst, route, nullptr);
139 XBT_DEBUG ("get_route_and_latency %s -> %s", my_src->name(), my_dst->name());
141 xbt_node_t current, previous;
142 const char *previous_name, *current_name;
145 previous = new_xbt_graph_node(graph, route->gw_src->name(), nodes);
146 previous_name = route->gw_src->name();
148 previous = new_xbt_graph_node(graph, my_src->name(), nodes);
149 previous_name = my_src->name();
152 for (auto link: *route->link_list) {
153 const char *link_name = link->getName();
154 current = new_xbt_graph_node(graph, link_name, nodes);
155 current_name = link_name;
156 new_xbt_graph_edge(graph, previous, current, edges);
157 XBT_DEBUG (" %s -> %s", previous_name, current_name);
159 previous_name = current_name;
163 current = new_xbt_graph_node(graph, route->gw_dst->name(), nodes);
164 current_name = route->gw_dst->name();
166 current = new_xbt_graph_node(graph, my_dst->name(), nodes);
167 current_name = my_dst->name();
169 new_xbt_graph_edge(graph, previous, current, edges);
170 XBT_DEBUG (" %s -> %s", previous_name, current_name);
172 delete route->link_list;
179 /* ************************************************************************** */
180 /* ************************* GENERIC AUX FUNCTIONS ************************** */
181 /* change a route containing link names into a route containing link entities */
182 sg_platf_route_cbarg_t AsRoutedGraph::newExtendedRoute(RoutingMode hierarchy, sg_platf_route_cbarg_t routearg, int change_order)
184 sg_platf_route_cbarg_t result;
186 result = xbt_new0(s_sg_platf_route_cbarg_t, 1);
187 result->link_list = new std::vector<Link*>();
189 xbt_assert(hierarchy == RoutingMode::base || hierarchy == RoutingMode::recursive,
190 "The hierarchy of this AS is neither BASIC nor RECURSIVE, I'm lost here.");
192 if (hierarchy == RoutingMode::recursive) {
193 xbt_assert(routearg->gw_src && routearg->gw_dst, "nullptr is obviously a deficient gateway");
195 result->gw_src = routearg->gw_src;
196 result->gw_dst = routearg->gw_dst;
199 for (auto link : *routearg->link_list) {
201 result->link_list->push_back(link);
203 result->link_list->insert(result->link_list->begin(), link);
209 void AsRoutedGraph::getRouteCheckParams(NetCard *src, NetCard *dst)
211 xbt_assert(src,"Cannot find a route from nullptr to %s", dst->name());
212 xbt_assert(dst,"Cannot find a route from %s to nullptr", src->name());
214 As *src_as = src->containingAS();
215 As *dst_as = dst->containingAS();
217 xbt_assert(src_as == dst_as, "Internal error: %s@%s and %s@%s are not in the same AS as expected. Please report that bug.",
218 src->name(), src_as->name(), dst->name(), dst_as->name());
220 xbt_assert(this == dst_as,
221 "Internal error: route destination %s@%s is not in AS %s as expected (route source: %s@%s). Please report that bug.",
222 src->name(), dst->name(), src_as->name(), dst_as->name(), name());
224 void AsRoutedGraph::addRouteCheckParams(sg_platf_route_cbarg_t route) {
225 NetCard *src = route->src;
226 NetCard *dst = route->dst;
227 const char *srcName = src->name();
228 const char *dstName = dst->name();
230 if(!route->gw_dst && !route->gw_src) {
231 XBT_DEBUG("Load Route from \"%s\" to \"%s\"", srcName, dstName);
232 xbt_assert(src, "Cannot add a route from %s to %s: %s does not exist.", srcName, dstName, srcName);
233 xbt_assert(dst, "Cannot add a route from %s to %s: %s does not exist.", srcName, dstName, dstName);
234 xbt_assert(! route->link_list->empty(), "Empty route (between %s and %s) forbidden.", srcName, dstName);
235 xbt_assert(! src->isAS(), "When defining a route, src cannot be an AS such as '%s'. Did you meant to have an ASroute?", srcName);
236 xbt_assert(! dst->isAS(), "When defining a route, dst cannot be an AS such as '%s'. Did you meant to have an ASroute?", dstName);
238 XBT_DEBUG("Load ASroute from %s@%s to %s@%s", srcName, route->gw_src->name(), dstName, route->gw_dst->name());
239 xbt_assert(src->isAS(), "When defining an ASroute, src must be an AS but '%s' is not", srcName);
240 xbt_assert(dst->isAS(), "When defining an ASroute, dst must be an AS but '%s' is not", dstName);
242 xbt_assert(route->gw_src->isHost() || route->gw_src->isRouter(),
243 "When defining an ASroute, gw_src must be an host or a router but '%s' is not.", srcName);
244 xbt_assert(route->gw_dst->isHost() || route->gw_dst->isRouter(),
245 "When defining an ASroute, gw_dst must be an host or a router but '%s' is not.", dstName);
247 xbt_assert(route->gw_src != route->gw_dst, "Cannot define an ASroute from '%s' to itself", route->gw_src->name());
249 xbt_assert(src, "Cannot add a route from %s@%s to %s@%s: %s does not exist.",
250 srcName,route->gw_src->name(), dstName,route->gw_dst->name(), srcName);
251 xbt_assert(dst, "Cannot add a route from %s@%s to %s@%s: %s does not exist.",
252 srcName,route->gw_src->name(), dstName,route->gw_dst->name(), dstName);
253 xbt_assert(! route->link_list->empty(), "Empty route (between %s@%s and %s@%s) forbidden.",
254 srcName,route->gw_src->name(), dstName,route->gw_dst->name());