1 /* Copyright (c) 2009-2017. 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. */
9 #include "xbt/sysdep.h"
11 #include "src/kernel/routing/NetPoint.hpp"
12 #include "src/kernel/routing/RoutedZone.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;
25 /* ***************************************************************** */
26 /* *********************** GENERIC METHODS ************************* */
28 static const char* instr_node_name(xbt_node_t node)
30 void* data = xbt_graph_node_get_data(node);
31 return static_cast<const char*>(data);
34 xbt_node_t new_xbt_graph_node(xbt_graph_t graph, const char* name, std::map<std::string, xbt_node_t>* nodes)
37 auto elm = nodes->find(name);
38 if (elm == nodes->end()) {
39 xbt_node_t ret = xbt_graph_new_node(graph, xbt_strdup(name));
40 nodes->insert({name, ret});
46 xbt_edge_t new_xbt_graph_edge(xbt_graph_t graph, xbt_node_t s, xbt_node_t d, std::map<std::string, xbt_edge_t>* edges)
48 const char* sn = instr_node_name(s);
49 const char* dn = instr_node_name(d);
50 std::string name = std::string(sn) + dn;
52 auto elm = edges->find(name);
53 if (elm == edges->end()) {
54 name = std::string(dn) + sn;
55 elm = edges->find(name);
58 if (elm == edges->end()) {
59 xbt_edge_t ret = xbt_graph_new_edge(graph, s, d, nullptr);
60 edges->insert({name, ret});
70 RoutedZone::RoutedZone(NetZone* father, std::string name) : NetZoneImpl(father, name)
74 void RoutedZone::getGraph(xbt_graph_t graph, std::map<std::string, xbt_node_t>* nodes,
75 std::map<std::string, xbt_edge_t>* edges)
77 std::vector<kernel::routing::NetPoint*> vertices = getVertices();
79 for (auto const& my_src : vertices) {
80 for (auto const& my_dst : vertices) {
84 sg_platf_route_cbarg_t route = new s_sg_platf_route_cbarg_t;
85 route->link_list = new std::vector<surf::LinkImpl*>();
87 getLocalRoute(my_src, my_dst, route, nullptr);
89 XBT_DEBUG("get_route_and_latency %s -> %s", my_src->getCname(), my_dst->getCname());
93 const char *previous_name;
94 const char *current_name;
97 previous = new_xbt_graph_node(graph, route->gw_src->getCname(), nodes);
98 previous_name = route->gw_src->getCname();
100 previous = new_xbt_graph_node(graph, my_src->getCname(), nodes);
101 previous_name = my_src->getCname();
104 for (auto const& link : *route->link_list) {
105 const char* link_name = link->getCname();
106 current = new_xbt_graph_node(graph, link_name, nodes);
107 current_name = link_name;
108 new_xbt_graph_edge(graph, previous, current, edges);
109 XBT_DEBUG(" %s -> %s", previous_name, current_name);
111 previous_name = current_name;
115 current = new_xbt_graph_node(graph, route->gw_dst->getCname(), nodes);
116 current_name = route->gw_dst->getCname();
118 current = new_xbt_graph_node(graph, my_dst->getCname(), nodes);
119 current_name = my_dst->getCname();
121 new_xbt_graph_edge(graph, previous, current, edges);
122 XBT_DEBUG(" %s -> %s", previous_name, current_name);
124 delete route->link_list;
130 /* ************************************************************************** */
131 /* ************************* GENERIC AUX FUNCTIONS ************************** */
132 /* change a route containing link names into a route containing link entities */
133 sg_platf_route_cbarg_t RoutedZone::newExtendedRoute(RoutingMode hierarchy, sg_platf_route_cbarg_t routearg,
136 sg_platf_route_cbarg_t result;
138 result = new s_sg_platf_route_cbarg_t;
139 result->link_list = new std::vector<surf::LinkImpl*>();
141 xbt_assert(hierarchy == RoutingMode::base || hierarchy == RoutingMode::recursive,
142 "The hierarchy of this netzone is neither BASIC nor RECURSIVE, I'm lost here.");
144 if (hierarchy == RoutingMode::recursive) {
145 xbt_assert(routearg->gw_src && routearg->gw_dst, "nullptr is obviously a deficient gateway");
147 result->gw_src = routearg->gw_src;
148 result->gw_dst = routearg->gw_dst;
151 for (auto const& link : *routearg->link_list) {
153 result->link_list->push_back(link);
155 result->link_list->insert(result->link_list->begin(), link);
157 result->link_list->shrink_to_fit();
162 void RoutedZone::getRouteCheckParams(NetPoint* src, NetPoint* dst)
164 xbt_assert(src, "Cannot find a route from nullptr to %s", dst->getCname());
165 xbt_assert(dst, "Cannot find a route from %s to nullptr", src->getCname());
167 NetZone* src_as = src->netzone();
168 NetZone* dst_as = dst->netzone();
170 xbt_assert(src_as == dst_as,
171 "Internal error: %s@%s and %s@%s are not in the same netzone as expected. Please report that bug.",
172 src->getCname(), src_as->getCname(), dst->getCname(), dst_as->getCname());
174 xbt_assert(this == dst_as, "Internal error: route destination %s@%s is not in netzone %s as expected (route source: "
175 "%s@%s). Please report that bug.",
176 src->getCname(), dst->getCname(), src_as->getCname(), dst_as->getCname(), getCname());
178 void RoutedZone::addRouteCheckParams(sg_platf_route_cbarg_t route)
180 NetPoint* src = route->src;
181 NetPoint* dst = route->dst;
182 const char* srcName = src->getCname();
183 const char* dstName = dst->getCname();
185 if (not route->gw_dst || not route->gw_src) {
186 XBT_DEBUG("Load Route from \"%s\" to \"%s\"", srcName, dstName);
187 xbt_assert(src, "Cannot add a route from %s to %s: %s does not exist.", srcName, dstName, srcName);
188 xbt_assert(dst, "Cannot add a route from %s to %s: %s does not exist.", srcName, dstName, dstName);
189 xbt_assert(not route->link_list->empty(), "Empty route (between %s and %s) forbidden.", srcName, dstName);
190 xbt_assert(not src->isNetZone(),
191 "When defining a route, src cannot be a netzone such as '%s'. Did you meant to have an NetzoneRoute?",
193 xbt_assert(not dst->isNetZone(),
194 "When defining a route, dst cannot be a netzone such as '%s'. Did you meant to have an NetzoneRoute?",
197 XBT_DEBUG("Load NetzoneRoute from %s@%s to %s@%s", srcName, route->gw_src->getCname(), dstName,
198 route->gw_dst->getCname());
199 xbt_assert(src->isNetZone(), "When defining a NetzoneRoute, src must be a netzone but '%s' is not", srcName);
200 xbt_assert(dst->isNetZone(), "When defining a NetzoneRoute, dst must be a netzone but '%s' is not", dstName);
202 xbt_assert(route->gw_src->isHost() || route->gw_src->isRouter(),
203 "When defining a NetzoneRoute, gw_src must be an host or a router but '%s' is not.", srcName);
204 xbt_assert(route->gw_dst->isHost() || route->gw_dst->isRouter(),
205 "When defining a NetzoneRoute, gw_dst must be an host or a router but '%s' is not.", dstName);
207 xbt_assert(route->gw_src != route->gw_dst, "Cannot define an NetzoneRoute from '%s' to itself",
208 route->gw_src->getCname());
210 xbt_assert(src, "Cannot add a route from %s@%s to %s@%s: %s does not exist.", srcName, route->gw_src->getCname(),
211 dstName, route->gw_dst->getCname(), srcName);
212 xbt_assert(dst, "Cannot add a route from %s@%s to %s@%s: %s does not exist.", srcName, route->gw_src->getCname(),
213 dstName, route->gw_dst->getCname(), dstName);
214 xbt_assert(not route->link_list->empty(), "Empty route (between %s@%s and %s@%s) forbidden.", srcName,
215 route->gw_src->getCname(), dstName, route->gw_dst->getCname());
218 onRouteCreation(route->symmetrical, route->src, route->dst, route->gw_src, route->gw_dst, route->link_list);