1 /* Copyright (c) 2009-2018. 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 static const char* instr_node_name(xbt_node_t node)
22 void* data = xbt_graph_node_get_data(node);
23 return static_cast<const char*>(data);
26 xbt_node_t new_xbt_graph_node(xbt_graph_t graph, const char* name, std::map<std::string, xbt_node_t>* nodes)
29 auto elm = nodes->find(name);
30 if (elm == nodes->end()) {
31 xbt_node_t ret = xbt_graph_new_node(graph, xbt_strdup(name));
32 nodes->insert({name, ret});
38 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)
40 const char* sn = instr_node_name(s);
41 const char* dn = instr_node_name(d);
42 std::string name = std::string(sn) + dn;
44 auto elm = edges->find(name);
45 if (elm == edges->end()) {
46 name = std::string(dn) + sn;
47 elm = edges->find(name);
50 if (elm == edges->end()) {
51 xbt_edge_t ret = xbt_graph_new_edge(graph, s, d, nullptr);
52 edges->insert({name, ret});
62 RoutedZone::RoutedZone(NetZoneImpl* father, std::string name) : NetZoneImpl(father, name) {}
64 void RoutedZone::get_graph(xbt_graph_t graph, std::map<std::string, xbt_node_t>* nodes,
65 std::map<std::string, xbt_edge_t>* edges)
67 std::vector<kernel::routing::NetPoint*> vertices = get_vertices();
69 for (auto const& my_src : vertices) {
70 for (auto const& my_dst : vertices) {
74 RouteCreationArgs* route = new RouteCreationArgs();
76 get_local_route(my_src, my_dst, route, nullptr);
78 XBT_DEBUG("get_route_and_latency %s -> %s", my_src->get_cname(), my_dst->get_cname());
82 const char *previous_name;
83 const char *current_name;
86 previous = new_xbt_graph_node(graph, route->gw_src->get_cname(), nodes);
87 previous_name = route->gw_src->get_cname();
89 previous = new_xbt_graph_node(graph, my_src->get_cname(), nodes);
90 previous_name = my_src->get_cname();
93 for (auto const& link : route->link_list) {
94 const char* link_name = link->get_cname();
95 current = new_xbt_graph_node(graph, link_name, nodes);
96 current_name = link_name;
97 new_xbt_graph_edge(graph, previous, current, edges);
98 XBT_DEBUG(" %s -> %s", previous_name, current_name);
100 previous_name = current_name;
104 current = new_xbt_graph_node(graph, route->gw_dst->get_cname(), nodes);
105 current_name = route->gw_dst->get_cname();
107 current = new_xbt_graph_node(graph, my_dst->get_cname(), nodes);
108 current_name = my_dst->get_cname();
110 new_xbt_graph_edge(graph, previous, current, edges);
111 XBT_DEBUG(" %s -> %s", previous_name, current_name);
118 /* ************************************************************************** */
119 /* ************************* GENERIC AUX FUNCTIONS ************************** */
120 /* change a route containing link names into a route containing link entities */
121 RouteCreationArgs* RoutedZone::new_extended_route(RoutingMode hierarchy, NetPoint* src, NetPoint* dst, NetPoint* gw_src,
122 NetPoint* gw_dst, std::vector<resource::LinkImpl*>& link_list,
123 bool symmetrical, bool change_order)
125 RouteCreationArgs* result = new RouteCreationArgs();
127 xbt_assert(hierarchy == RoutingMode::base || hierarchy == RoutingMode::recursive,
128 "The hierarchy of this netzone is neither BASIC nor RECURSIVE, I'm lost here.");
130 if (hierarchy == RoutingMode::recursive) {
131 xbt_assert(gw_src && gw_dst, "nullptr is obviously a deficient gateway");
133 result->gw_src = gw_src;
134 result->gw_dst = gw_dst;
137 for (auto const& link : link_list) {
139 result->link_list.push_back(link);
141 result->link_list.insert(result->link_list.begin(), link);
143 result->link_list.shrink_to_fit();
148 void RoutedZone::get_route_check_params(NetPoint* src, NetPoint* dst)
150 xbt_assert(src, "Cannot find a route from nullptr to %s", dst->get_cname());
151 xbt_assert(dst, "Cannot find a route from %s to nullptr", src->get_cname());
153 NetZoneImpl* src_as = src->get_englobing_zone();
154 NetZoneImpl* dst_as = dst->get_englobing_zone();
156 xbt_assert(src_as == dst_as,
157 "Internal error: %s@%s and %s@%s are not in the same netzone as expected. Please report that bug.",
158 src->get_cname(), src_as->get_cname(), dst->get_cname(), dst_as->get_cname());
160 xbt_assert(this == dst_as,
161 "Internal error: route destination %s@%s is not in netzone %s as expected (route source: "
162 "%s@%s). Please report that bug.",
163 src->get_cname(), dst->get_cname(), src_as->get_cname(), dst_as->get_cname(), get_cname());
165 void RoutedZone::add_route_check_params(NetPoint* src, NetPoint* dst, NetPoint* gw_src, NetPoint* gw_dst,
166 std::vector<resource::LinkImpl*>& link_list, bool symmetrical)
168 const char* srcName = src->get_cname();
169 const char* dstName = dst->get_cname();
171 if (not gw_dst || not gw_src) {
172 XBT_DEBUG("Load Route from \"%s\" to \"%s\"", srcName, dstName);
173 xbt_assert(src, "Cannot add a route from %s to %s: %s does not exist.", srcName, dstName, srcName);
174 xbt_assert(dst, "Cannot add a route from %s to %s: %s does not exist.", srcName, dstName, dstName);
175 xbt_assert(not link_list.empty(), "Empty route (between %s and %s) forbidden.", srcName, dstName);
176 xbt_assert(not src->is_netzone(),
177 "When defining a route, src cannot be a netzone such as '%s'. Did you meant to have an NetzoneRoute?",
179 xbt_assert(not dst->is_netzone(),
180 "When defining a route, dst cannot be a netzone such as '%s'. Did you meant to have an NetzoneRoute?",
183 XBT_DEBUG("Load NetzoneRoute from %s@%s to %s@%s", srcName, gw_src->get_cname(), dstName, gw_dst->get_cname());
184 xbt_assert(src->is_netzone(), "When defining a NetzoneRoute, src must be a netzone but '%s' is not", srcName);
185 xbt_assert(dst->is_netzone(), "When defining a NetzoneRoute, dst must be a netzone but '%s' is not", dstName);
187 xbt_assert(gw_src->is_host() || gw_src->is_router(),
188 "When defining a NetzoneRoute, gw_src must be an host or a router but '%s' is not.", srcName);
189 xbt_assert(gw_dst->is_host() || gw_dst->is_router(),
190 "When defining a NetzoneRoute, gw_dst must be an host or a router but '%s' is not.", dstName);
192 xbt_assert(gw_src != gw_dst, "Cannot define an NetzoneRoute from '%s' to itself", gw_src->get_cname());
194 xbt_assert(src, "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(), srcName);
196 xbt_assert(dst, "Cannot add a route from %s@%s to %s@%s: %s does not exist.", srcName, gw_src->get_cname(), dstName,
197 gw_dst->get_cname(), dstName);
198 xbt_assert(not link_list.empty(), "Empty route (between %s@%s and %s@%s) forbidden.", srcName, gw_src->get_cname(),
199 dstName, gw_dst->get_cname());
202 get_iface()->on_route_creation(symmetrical, src, dst, gw_src, gw_dst, link_list);