1 /* Copyright (c) 2009-2020. 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, std::map<std::string, xbt_node_t>* nodes)
22 auto elm = nodes->find(name);
23 if (elm == nodes->end()) {
24 xbt_node_t ret = xbt_graph_new_node(graph, xbt_strdup(name));
25 nodes->insert({name, ret});
31 xbt_edge_t new_xbt_graph_edge(const s_xbt_graph_t* graph, xbt_node_t s, xbt_node_t d,
32 std::map<std::string, xbt_edge_t>* edges)
34 const char* sn = static_cast<const char*>(xbt_graph_node_get_data(s));
35 const char* dn = static_cast<const char*>(xbt_graph_node_get_data(d));
36 std::string name = std::string(sn) + dn;
38 auto elm = edges->find(name);
39 if (elm == edges->end()) {
40 name = std::string(dn) + sn;
41 elm = edges->find(name);
44 if (elm == edges->end()) {
45 xbt_edge_t ret = xbt_graph_new_edge(graph, s, d, nullptr);
46 edges->insert({name, ret});
56 RoutedZone::RoutedZone(NetZoneImpl* father, const std::string& name, resource::NetworkModel* netmodel)
57 : NetZoneImpl(father, name, netmodel)
61 void RoutedZone::get_graph(const s_xbt_graph_t* graph, std::map<std::string, xbt_node_t>* nodes,
62 std::map<std::string, xbt_edge_t>* edges)
64 std::vector<NetPoint*> vertices = get_vertices();
66 for (auto const& my_src : vertices) {
67 for (auto const& my_dst : vertices) {
71 RouteCreationArgs* route = new RouteCreationArgs();
73 get_local_route(my_src, my_dst, route, nullptr);
75 XBT_DEBUG("get_route_and_latency %s -> %s", my_src->get_cname(), my_dst->get_cname());
79 const char *previous_name;
80 const char *current_name;
83 previous = new_xbt_graph_node(graph, route->gw_src->get_cname(), nodes);
84 previous_name = route->gw_src->get_cname();
86 previous = new_xbt_graph_node(graph, my_src->get_cname(), nodes);
87 previous_name = my_src->get_cname();
90 for (auto const& link : route->link_list) {
91 const char* link_name = link->get_cname();
92 current = new_xbt_graph_node(graph, link_name, nodes);
93 current_name = link_name;
94 new_xbt_graph_edge(graph, previous, current, edges);
95 XBT_DEBUG(" %s -> %s", previous_name, current_name);
97 previous_name = current_name;
101 current = new_xbt_graph_node(graph, route->gw_dst->get_cname(), nodes);
102 current_name = route->gw_dst->get_cname();
104 current = new_xbt_graph_node(graph, my_dst->get_cname(), nodes);
105 current_name = my_dst->get_cname();
107 new_xbt_graph_edge(graph, previous, current, edges);
108 XBT_DEBUG(" %s -> %s", previous_name, current_name);
115 /* ************************************************************************** */
116 /* ************************* GENERIC AUX FUNCTIONS ************************** */
117 /* change a route containing link names into a route containing link entities */
118 RouteCreationArgs* RoutedZone::new_extended_route(RoutingMode hierarchy, NetPoint* /* src */, NetPoint* /* dst */,
119 NetPoint* gw_src, NetPoint* gw_dst,
120 std::vector<resource::LinkImpl*>& link_list, bool /* symmetrical */,
123 RouteCreationArgs* result = new RouteCreationArgs();
125 xbt_assert(hierarchy == RoutingMode::base || hierarchy == RoutingMode::recursive,
126 "The hierarchy of this netzone is neither BASIC nor RECURSIVE, I'm lost here.");
128 if (hierarchy == RoutingMode::recursive) {
129 xbt_assert(gw_src && gw_dst, "nullptr is obviously a deficient gateway");
131 result->gw_src = gw_src;
132 result->gw_dst = gw_dst;
135 for (auto const& link : link_list) {
137 result->link_list.push_back(link);
139 result->link_list.insert(result->link_list.begin(), link);
141 result->link_list.shrink_to_fit();
146 void RoutedZone::get_route_check_params(NetPoint* src, NetPoint* dst) const
148 xbt_assert(src, "Cannot find a route from nullptr to %s", dst->get_cname());
149 xbt_assert(dst, "Cannot find a route from %s to nullptr", src->get_cname());
151 const NetZoneImpl* src_as = src->get_englobing_zone();
152 const NetZoneImpl* dst_as = dst->get_englobing_zone();
154 xbt_assert(src_as == dst_as,
155 "Internal error: %s@%s and %s@%s are not in the same netzone as expected. Please report that bug.",
156 src->get_cname(), src_as->get_cname(), dst->get_cname(), dst_as->get_cname());
158 xbt_assert(this == dst_as,
159 "Internal error: route destination %s@%s is not in netzone %s as expected (route source: "
160 "%s@%s). Please report that bug.",
161 src->get_cname(), dst->get_cname(), src_as->get_cname(), dst_as->get_cname(), get_cname());
163 void RoutedZone::add_route_check_params(NetPoint* src, NetPoint* dst, NetPoint* gw_src, NetPoint* gw_dst,
164 const std::vector<resource::LinkImpl*>& link_list, bool symmetrical) const
166 const char* srcName = src->get_cname();
167 const char* dstName = dst->get_cname();
169 if (not gw_dst || not gw_src) {
170 XBT_DEBUG("Load Route from \"%s\" to \"%s\"", srcName, dstName);
171 xbt_assert(src, "Cannot add a route from %s to %s: %s does not exist.", srcName, dstName, srcName);
172 xbt_assert(dst, "Cannot add a route from %s to %s: %s does not exist.", srcName, dstName, dstName);
173 xbt_assert(not link_list.empty(), "Empty route (between %s and %s) forbidden.", srcName, dstName);
174 xbt_assert(not src->is_netzone(),
175 "When defining a route, src cannot be a netzone such as '%s'. Did you meant to have an NetzoneRoute?",
177 xbt_assert(not dst->is_netzone(),
178 "When defining a route, dst cannot be a netzone such as '%s'. Did you meant to have an NetzoneRoute?",
181 XBT_DEBUG("Load NetzoneRoute from %s@%s to %s@%s", srcName, gw_src->get_cname(), dstName, gw_dst->get_cname());
182 xbt_assert(src->is_netzone(), "When defining a NetzoneRoute, src must be a netzone but '%s' is not", srcName);
183 xbt_assert(dst->is_netzone(), "When defining a NetzoneRoute, dst must be a netzone but '%s' is not", dstName);
185 xbt_assert(gw_src->is_host() || gw_src->is_router(),
186 "When defining a NetzoneRoute, gw_src must be a host or a router but '%s' is not.", srcName);
187 xbt_assert(gw_dst->is_host() || gw_dst->is_router(),
188 "When defining a NetzoneRoute, gw_dst must be a host or a router but '%s' is not.", dstName);
190 xbt_assert(gw_src != gw_dst, "Cannot define an NetzoneRoute from '%s' to itself", gw_src->get_cname());
192 xbt_assert(src, "Cannot add a route from %s@%s to %s@%s: %s does not exist.", srcName, gw_src->get_cname(), dstName,
193 gw_dst->get_cname(), srcName);
194 xbt_assert(dst, "Cannot add a route from %s@%s to %s@%s: %s does not exist.", srcName, gw_src->get_cname(), dstName,
195 gw_dst->get_cname(), dstName);
196 xbt_assert(not link_list.empty(), "Empty route (between %s@%s and %s@%s) forbidden.", srcName, gw_src->get_cname(),
197 dstName, gw_dst->get_cname());
200 s4u::NetZone::on_route_creation(symmetrical, src, dst, gw_src, gw_dst, link_list);
202 } // namespace routing
203 } // namespace kernel
204 } // namespace simgrid