1 /* Copyright (c) 2009-2021. 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"
10 #include "simgrid/kernel/routing/NetPoint.hpp"
11 #include "simgrid/kernel/routing/RoutedZone.hpp"
12 #include "src/surf/network_interface.hpp"
13 #include "src/surf/xml/platf_private.hpp"
15 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(surf_routing_generic, surf_route, "Generic implementation of the surf routing");
17 /* ***************************************************************** */
18 /* *********************** GENERIC METHODS ************************* */
20 xbt_node_t new_xbt_graph_node(const s_xbt_graph_t* graph, const char* name,
21 std::map<std::string, xbt_node_t, std::less<>>* nodes)
23 auto elm = nodes->find(name);
24 if (elm == nodes->end()) {
25 xbt_node_t ret = xbt_graph_new_node(graph, xbt_strdup(name));
26 nodes->insert({name, ret});
32 xbt_edge_t new_xbt_graph_edge(const s_xbt_graph_t* graph, xbt_node_t s, xbt_node_t d,
33 std::map<std::string, xbt_edge_t, std::less<>>* edges)
35 const auto* sn = static_cast<const char*>(xbt_graph_node_get_data(s));
36 const auto* dn = static_cast<const char*>(xbt_graph_node_get_data(d));
37 std::string name = std::string(sn) + dn;
39 auto elm = edges->find(name);
40 if (elm == edges->end()) {
41 name = std::string(dn) + sn;
42 elm = edges->find(name);
45 if (elm == edges->end()) {
46 xbt_edge_t ret = xbt_graph_new_edge(graph, s, d, nullptr);
47 edges->insert({name, ret});
57 RoutedZone::RoutedZone(NetZoneImpl* father, const std::string& name, resource::NetworkModel* netmodel)
58 : NetZoneImpl(father, name, netmodel)
62 void RoutedZone::get_graph(const s_xbt_graph_t* graph, std::map<std::string, xbt_node_t, std::less<>>* nodes,
63 std::map<std::string, xbt_edge_t, std::less<>>* edges)
65 std::vector<NetPoint*> vertices = get_vertices();
67 for (auto const& my_src : vertices) {
68 for (auto const& my_dst : vertices) {
72 RouteCreationArgs route;
74 get_local_route(my_src, my_dst, &route, nullptr);
76 XBT_DEBUG("get_route_and_latency %s -> %s", my_src->get_cname(), my_dst->get_cname());
80 const char *previous_name;
81 const char *current_name;
84 previous = new_xbt_graph_node(graph, route.gw_src->get_cname(), nodes);
85 previous_name = route.gw_src->get_cname();
87 previous = new_xbt_graph_node(graph, my_src->get_cname(), nodes);
88 previous_name = my_src->get_cname();
91 for (auto const& link : route.link_list) {
92 const char* link_name = link->get_cname();
93 current = new_xbt_graph_node(graph, link_name, nodes);
94 current_name = link_name;
95 new_xbt_graph_edge(graph, previous, current, edges);
96 XBT_DEBUG(" %s -> %s", previous_name, current_name);
98 previous_name = current_name;
102 current = new_xbt_graph_node(graph, route.gw_dst->get_cname(), nodes);
103 current_name = route.gw_dst->get_cname();
105 current = new_xbt_graph_node(graph, my_dst->get_cname(), nodes);
106 current_name = my_dst->get_cname();
108 new_xbt_graph_edge(graph, previous, current, edges);
109 XBT_DEBUG(" %s -> %s", previous_name, current_name);
114 /* ************************************************************************** */
115 /* ************************* GENERIC AUX FUNCTIONS ************************** */
116 /* change a route containing link names into a route containing link entities */
117 RouteCreationArgs* RoutedZone::new_extended_route(RoutingMode hierarchy, NetPoint* gw_src, NetPoint* gw_dst,
118 const std::vector<resource::LinkImpl*>& link_list,
121 auto* result = new RouteCreationArgs();
123 xbt_assert(hierarchy == RoutingMode::base || hierarchy == RoutingMode::recursive,
124 "The hierarchy of this netzone is neither BASIC nor RECURSIVE, I'm lost here.");
126 if (hierarchy == RoutingMode::recursive) {
127 xbt_assert(gw_src && gw_dst, "nullptr is obviously a deficient gateway");
129 result->gw_src = gw_src;
130 result->gw_dst = gw_dst;
134 result->link_list = link_list;
136 result->link_list.assign(link_list.rbegin(), link_list.rend()); // reversed
137 result->link_list.shrink_to_fit();
142 void RoutedZone::get_route_check_params(NetPoint* src, NetPoint* dst) const
144 xbt_assert(src, "Cannot find a route from nullptr to %s", dst->get_cname());
145 xbt_assert(dst, "Cannot find a route from %s to nullptr", src->get_cname());
147 const NetZoneImpl* src_as = src->get_englobing_zone();
148 const NetZoneImpl* dst_as = dst->get_englobing_zone();
150 xbt_assert(src_as == dst_as,
151 "Internal error: %s@%s and %s@%s are not in the same netzone as expected. Please report that bug.",
152 src->get_cname(), src_as->get_cname(), dst->get_cname(), dst_as->get_cname());
154 xbt_assert(this == dst_as,
155 "Internal error: route destination %s@%s is not in netzone %s as expected (route source: "
156 "%s@%s). Please report that bug.",
157 src->get_cname(), dst->get_cname(), src_as->get_cname(), dst_as->get_cname(), get_cname());
159 void RoutedZone::add_route_check_params(NetPoint* src, NetPoint* dst, NetPoint* gw_src, NetPoint* gw_dst,
160 const std::vector<resource::LinkImpl*>& link_list, bool symmetrical) const
162 const char* srcName = src->get_cname();
163 const char* dstName = dst->get_cname();
165 if (not gw_dst || not gw_src) {
166 XBT_DEBUG("Load Route from \"%s\" to \"%s\"", srcName, dstName);
167 xbt_assert(src, "Cannot add a route from %s to %s: %s does not exist.", srcName, dstName, srcName);
168 xbt_assert(dst, "Cannot add a route from %s to %s: %s does not exist.", srcName, dstName, dstName);
169 xbt_assert(not link_list.empty(), "Empty route (between %s and %s) forbidden.", srcName, dstName);
170 xbt_assert(not src->is_netzone(),
171 "When defining a route, src cannot be a netzone such as '%s'. Did you meant to have a NetzoneRoute?",
173 xbt_assert(not dst->is_netzone(),
174 "When defining a route, dst cannot be a netzone such as '%s'. Did you meant to have a NetzoneRoute?",
176 s4u::NetZone::on_route_creation(symmetrical, src, dst, gw_src, gw_dst, link_list);
178 XBT_DEBUG("Load NetzoneRoute from %s@%s to %s@%s", srcName, gw_src->get_cname(), dstName, gw_dst->get_cname());
179 xbt_assert(src->is_netzone(), "When defining a NetzoneRoute, src must be a netzone but '%s' is not", srcName);
180 xbt_assert(dst->is_netzone(), "When defining a NetzoneRoute, dst must be a netzone but '%s' is not", dstName);
182 xbt_assert(gw_src->is_host() || gw_src->is_router(),
183 "When defining a NetzoneRoute, gw_src must be a host or a router but '%s' is not.", srcName);
184 xbt_assert(gw_dst->is_host() || gw_dst->is_router(),
185 "When defining a NetzoneRoute, gw_dst must be a host or a router but '%s' is not.", dstName);
187 xbt_assert(gw_src != gw_dst, "Cannot define a NetzoneRoute from '%s' to itself", gw_src->get_cname());
189 xbt_assert(src, "Cannot add a route from %s@%s to %s@%s: %s does not exist.", srcName, gw_src->get_cname(), dstName,
190 gw_dst->get_cname(), srcName);
191 xbt_assert(dst, "Cannot add a route from %s@%s to %s@%s: %s does not exist.", srcName, gw_src->get_cname(), dstName,
192 gw_dst->get_cname(), dstName);
193 xbt_assert(not link_list.empty(), "Empty route (between %s@%s and %s@%s) forbidden.", srcName, gw_src->get_cname(),
194 dstName, gw_dst->get_cname());
195 s4u::NetZone::on_route_creation(symmetrical, gw_src, gw_dst, gw_src, gw_dst, link_list);
198 } // namespace routing
199 } // namespace kernel
200 } // namespace simgrid