1 /* Copyright (c) 2006-2023. 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. */
6 #include <simgrid/kernel/routing/NetPoint.hpp>
7 #include <simgrid/kernel/routing/NetZoneImpl.hpp>
8 #include <simgrid/s4u/Engine.hpp>
9 #include <simgrid/s4u/Host.hpp>
10 #include <simgrid/s4u/VirtualMachine.hpp>
12 #include "src/kernel/EngineImpl.hpp"
13 #include "src/kernel/resource/CpuImpl.hpp"
14 #include "src/kernel/resource/DiskImpl.hpp"
15 #include "src/kernel/resource/HostImpl.hpp"
16 #include "src/kernel/resource/NetworkModel.hpp"
17 #include "src/kernel/resource/SplitDuplexLinkImpl.hpp"
18 #include "src/kernel/resource/StandardLinkImpl.hpp"
19 #include "src/kernel/resource/VirtualMachineImpl.hpp"
20 #include "src/simgrid/module.hpp"
21 #include "src/simgrid/sg_config.hpp"
22 #include "xbt/asserts.hpp"
24 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(ker_platform, kernel, "Kernel platform-related information");
26 namespace simgrid::kernel::routing {
28 xbt::signal<void(bool symmetrical, kernel::routing::NetPoint* src, kernel::routing::NetPoint* dst,
29 kernel::routing::NetPoint* gw_src, kernel::routing::NetPoint* gw_dst,
30 std::vector<kernel::resource::StandardLinkImpl*> const& link_list)>
31 NetZoneImpl::on_route_creation;
33 NetZoneImpl::NetZoneImpl(const std::string& name) : piface_(this), name_(name)
35 auto* engine = s4u::Engine::get_instance();
36 /* workaroud: first netzoneImpl will be the root netzone.
37 * Without globals and with current model description init functions (see module.hpp), we need
38 * the root netzone to exist when creating the models.
39 * This is usually done at sg_platf.cpp, during XML parsing */
40 if (not engine->get_netzone_root()) {
41 engine->set_netzone_root(&piface_);
42 /* root netzone set, initialize models */
43 simgrid::s4u::Engine::on_platform_creation();
45 /* Initialize the models. That must be done after we got all config, and before we need the models.
46 * That is, after the last <config> tag, if any, and before the first of cluster|peer|zone|trace|trace_cb
48 * I'm not sure for <trace> and <trace_cb>, there may be a bug here
49 * (FIXME: check it out by creating a file beginning with one of these tags)
50 * but cluster and peer come down to zone creations, so putting this verification here is correct.
52 simgrid_host_models().init_from_flag_value();
53 simgrid_vm_model_init_HL13();
56 xbt_enforce(nullptr == engine->netpoint_by_name_or_null(get_name()),
57 "Refusing to create a second NetZone called '%s'.", get_cname());
58 netpoint_ = new NetPoint(name_, NetPoint::Type::NetZone);
59 XBT_DEBUG("NetZone '%s' created with the id '%lu'", get_cname(), netpoint_->id());
60 _sg_cfg_init_status = 2; /* HACK: direct access to the global controlling the level of configuration to prevent
61 * any further config now that we created some real content */
62 simgrid::s4u::NetZone::on_creation(piface_); // notify the signal
65 NetZoneImpl::~NetZoneImpl()
67 for (auto const& nz : children_)
70 /* Since hosts_ and links_ are a std::map, the hosts are destroyed in the lexicographic order, which ensures that the
71 * output is reproducible.
73 for (auto const& [_, host] : hosts_) {
77 for (auto const& [_, link] : links_) {
82 for (auto const& [_, route] : bypass_routes_)
85 s4u::Engine::get_instance()->netpoint_unregister(netpoint_);
88 xbt_node_t NetZoneImpl::new_xbt_graph_node(const s_xbt_graph_t* graph, const char* name,
89 std::map<std::string, xbt_node_t, std::less<>>* nodes)
91 auto [elm, inserted] = nodes->try_emplace(name);
93 elm->second = xbt_graph_new_node(graph, xbt_strdup(name));
97 xbt_edge_t NetZoneImpl::new_xbt_graph_edge(const s_xbt_graph_t* graph, xbt_node_t src, xbt_node_t dst,
98 std::map<std::string, xbt_edge_t, std::less<>>* edges)
100 const auto* src_name = static_cast<const char*>(xbt_graph_node_get_data(src));
101 const auto* dst_name = static_cast<const char*>(xbt_graph_node_get_data(dst));
103 auto elm = edges->find(std::string(src_name) + dst_name);
104 if (elm == edges->end()) {
106 std::tie(elm, inserted) = edges->try_emplace(std::string(dst_name) + src_name);
108 elm->second = xbt_graph_new_edge(graph, src, dst, nullptr);
114 void NetZoneImpl::add_child(NetZoneImpl* new_zone)
116 xbt_enforce(not sealed_, "Cannot add a new child to the sealed zone %s", get_cname());
117 /* set the parent behavior */
118 hierarchy_ = RoutingMode::recursive;
119 children_.push_back(new_zone);
122 /** @brief Returns the list of the hosts found in this NetZone (not recursively)
124 * Only the hosts that are directly contained in this NetZone are retrieved,
125 * not the ones contained in sub-netzones.
127 std::vector<s4u::Host*> NetZoneImpl::get_all_hosts() const
129 return s4u::Engine::get_instance()->get_filtered_hosts(
130 [this](const s4u::Host* host) { return host->get_impl()->get_englobing_zone() == this; });
132 size_t NetZoneImpl::get_host_count() const
134 return get_all_hosts().size();
137 std::vector<s4u::Link*> NetZoneImpl::get_filtered_links(const std::function<bool(s4u::Link*)>& filter) const
139 std::vector<s4u::Link*> filtered_list;
140 for (auto const& [_, link] : links_) {
141 s4u::Link* l = link->get_iface();
143 filtered_list.push_back(l);
146 for (const auto* child : children_) {
147 auto child_links = child->get_filtered_links(filter);
148 filtered_list.insert(filtered_list.end(), std::make_move_iterator(child_links.begin()),
149 std::make_move_iterator(child_links.end()));
151 return filtered_list;
154 std::vector<s4u::Link*> NetZoneImpl::get_all_links() const
156 return get_filtered_links([](const s4u::Link*) { return true; });
159 size_t NetZoneImpl::get_link_count() const
161 size_t total = links_.size();
162 for (const auto* child : children_) {
163 total += child->get_link_count();
168 s4u::Host* NetZoneImpl::create_host(const std::string& name, const std::vector<double>& speed_per_pstate)
170 xbt_enforce(cpu_model_pm_,
171 "Impossible to create host: %s. Invalid CPU model: nullptr. Have you set the parent of this NetZone: %s?",
172 name.c_str(), get_cname());
173 xbt_enforce(not sealed_, "Impossible to create host: %s. NetZone %s already sealed", name.c_str(), get_cname());
174 auto* host = (new resource::HostImpl(name))->set_englobing_zone(this);
176 host->get_iface()->set_netpoint((new NetPoint(name, NetPoint::Type::Host))->set_englobing_zone(this));
178 cpu_model_pm_->create_cpu(host->get_iface(), speed_per_pstate);
180 return host->get_iface();
183 resource::StandardLinkImpl* NetZoneImpl::do_create_link(const std::string& name, const std::vector<double>& bandwidths)
185 return network_model_->create_link(name, bandwidths);
188 s4u::Link* NetZoneImpl::create_link(const std::string& name, const std::vector<double>& bandwidths)
192 "Impossible to create link: %s. Invalid network model: nullptr. Have you set the parent of this NetZone: %s?",
193 name.c_str(), get_cname());
194 xbt_enforce(not sealed_, "Impossible to create link: %s. NetZone %s already sealed", name.c_str(), get_cname());
195 links_[name] = do_create_link(name, bandwidths)->set_englobing_zone(this);
196 return links_[name]->get_iface();
199 s4u::SplitDuplexLink* NetZoneImpl::create_split_duplex_link(const std::string& name,
200 const std::vector<double>& bandwidths)
204 "Impossible to create link: %s. Invalid network model: nullptr. Have you set the parent of this NetZone: %s?",
205 name.c_str(), get_cname());
206 xbt_enforce(not sealed_, "Impossible to create link: %s. NetZone %s already sealed", name.c_str(), get_cname());
208 auto* link_up = create_link(name + "_UP", bandwidths)->get_impl()->set_englobing_zone(this);
209 auto* link_down = create_link(name + "_DOWN", bandwidths)->get_impl()->set_englobing_zone(this);
210 split_duplex_links_[name] = std::make_unique<resource::SplitDuplexLinkImpl>(name, link_up, link_down);
211 return split_duplex_links_[name]->get_iface();
214 s4u::Disk* NetZoneImpl::create_disk(const std::string& name, double read_bandwidth, double write_bandwidth)
216 xbt_enforce(disk_model_,
217 "Impossible to create disk: %s. Invalid disk model: nullptr. Have you set the parent of this NetZone: %s?",
218 name.c_str(), get_cname());
219 xbt_enforce(not sealed_, "Impossible to create disk: %s. NetZone %s already sealed", name.c_str(), get_cname());
220 auto* l = disk_model_->create_disk(name, read_bandwidth, write_bandwidth);
222 return l->get_iface();
225 NetPoint* NetZoneImpl::create_router(const std::string& name)
227 xbt_enforce(nullptr == s4u::Engine::get_instance()->netpoint_by_name_or_null(name),
228 "Refusing to create a router named '%s': this name already describes a node.", name.c_str());
229 xbt_enforce(not sealed_, "Impossible to create router: %s. NetZone %s already sealed", name.c_str(), get_cname());
231 return (new NetPoint(name, NetPoint::Type::Router))->set_englobing_zone(this);
234 unsigned long NetZoneImpl::add_component(NetPoint* elm)
236 vertices_.push_back(elm);
237 return vertices_.size() - 1; // The rank of the newly created object
240 std::vector<resource::StandardLinkImpl*> NetZoneImpl::get_link_list_impl(const std::vector<s4u::LinkInRoute>& link_list,
241 bool backroute) const
243 std::vector<resource::StandardLinkImpl*> links;
245 for (const auto& link : link_list) {
246 if (link.get_link()->get_sharing_policy() != s4u::Link::SharingPolicy::SPLITDUPLEX) {
247 links.push_back(link.get_link()->get_impl());
250 // split-duplex links
251 const auto* sd_link = dynamic_cast<const s4u::SplitDuplexLink*>(link.get_link());
253 "Add_route: cast to SpliDuplexLink impossible. This should not happen, please contact SimGrid team");
254 resource::StandardLinkImpl* link_impl;
255 switch (link.get_direction()) {
256 case s4u::LinkInRoute::Direction::UP:
258 link_impl = sd_link->get_link_down()->get_impl();
260 link_impl = sd_link->get_link_up()->get_impl();
262 case s4u::LinkInRoute::Direction::DOWN:
264 link_impl = sd_link->get_link_up()->get_impl();
266 link_impl = sd_link->get_link_down()->get_impl();
269 throw std::invalid_argument("Invalid add_route. Split-Duplex link without a direction: " +
270 link.get_link()->get_name());
272 links.push_back(link_impl);
277 resource::StandardLinkImpl* NetZoneImpl::get_link_by_name_or_null(const std::string& name) const
279 if (auto link_it = links_.find(name); link_it != links_.end())
280 return link_it->second;
282 for (const auto* child : children_) {
283 if (auto* link = child->get_link_by_name_or_null(name))
290 resource::SplitDuplexLinkImpl* NetZoneImpl::get_split_duplex_link_by_name_or_null(const std::string& name) const
292 if (auto link_it = split_duplex_links_.find(name); link_it != split_duplex_links_.end())
293 return link_it->second.get();
295 for (const auto* child : children_) {
296 if (auto* link = child->get_split_duplex_link_by_name_or_null(name))
303 resource::HostImpl* NetZoneImpl::get_host_by_name_or_null(const std::string& name) const
305 if (auto host_it = hosts_.find(name); host_it != hosts_.end())
306 return host_it->second;
308 for (const auto* child : children_) {
309 if (auto* host = child->get_host_by_name_or_null(name))
316 std::vector<s4u::Host*> NetZoneImpl::get_filtered_hosts(const std::function<bool(s4u::Host*)>& filter) const
318 std::vector<s4u::Host*> filtered_list;
319 for (auto const& [_, host] : hosts_) {
320 s4u::Host* h = host->get_iface();
322 filtered_list.push_back(h);
323 /* Engine::get_hosts returns the VMs too */
324 for (auto* vm : h->get_impl()->get_vms()) {
326 filtered_list.push_back(vm);
330 for (const auto* child : children_) {
331 auto child_links = child->get_filtered_hosts(filter);
332 filtered_list.insert(filtered_list.end(), std::make_move_iterator(child_links.begin()),
333 std::make_move_iterator(child_links.end()));
335 return filtered_list;
338 void NetZoneImpl::add_route(NetPoint* /*src*/, NetPoint* /*dst*/, NetPoint* /*gw_src*/, NetPoint* /*gw_dst*/,
339 const std::vector<s4u::LinkInRoute>& /*link_list_*/, bool /*symmetrical*/)
341 xbt_die("NetZone '%s' does not accept new routes (wrong class).", get_cname());
344 void NetZoneImpl::add_bypass_route(NetPoint* src, NetPoint* dst, NetPoint* gw_src, NetPoint* gw_dst,
345 const std::vector<s4u::LinkInRoute>& link_list)
347 /* Argument validity checks */
349 XBT_DEBUG("Load bypassNetzoneRoute from %s@%s to %s@%s", src->get_cname(), gw_src->get_cname(), dst->get_cname(),
350 gw_dst->get_cname());
351 xbt_enforce(not link_list.empty(), "Bypass route between %s@%s and %s@%s cannot be empty.", src->get_cname(),
352 gw_src->get_cname(), dst->get_cname(), gw_dst->get_cname());
353 xbt_enforce(bypass_routes_.find({src, dst}) == bypass_routes_.end(),
354 "The bypass route between %s@%s and %s@%s already exists.", src->get_cname(), gw_src->get_cname(),
355 dst->get_cname(), gw_dst->get_cname());
357 XBT_DEBUG("Load bypassRoute from %s to %s", src->get_cname(), dst->get_cname());
358 xbt_enforce(not link_list.empty(), "Bypass route between %s and %s cannot be empty.", src->get_cname(),
360 xbt_enforce(bypass_routes_.find({src, dst}) == bypass_routes_.end(),
361 "The bypass route between %s and %s already exists.", src->get_cname(), dst->get_cname());
364 /* Build a copy that will be stored in the dict */
365 auto* newRoute = new BypassRoute(gw_src, gw_dst);
366 auto converted_list = get_link_list_impl(link_list, false);
367 newRoute->links.insert(newRoute->links.end(), begin(converted_list), end(converted_list));
370 bypass_routes_.try_emplace({src, dst}, newRoute);
373 /** @brief Get the common ancestor and its first children in each line leading to src and dst
375 * In the recursive case, this sets common_ancestor, src_ancestor and dst_ancestor are set as follows.
379 * ... <- possibly long path
384 * / \ <- direct links
387 * src_ancestor dst_ancestor <- must be different in the recursive case
389 * ... ... <-- possibly long paths (one hop or more)
394 * In the base case (when src and dst are in the same netzone), things are as follows:
398 * ... <-- possibly long path
400 * common_ancestor==src_ancestor==dst_ancestor <-- all the same value
402 * / \ <-- direct links (exactly one hop)
407 * A specific recursive case occurs when src is the ancestor of dst. In this case,
408 * the base case routing should be used so the common_ancestor is specifically set
409 * to src_ancestor==dst_ancestor.
410 * Naturally, things are completely symmetrical if dst is the ancestor of src.
414 * ... <-- possibly long path
416 * src == src_ancestor==dst_ancestor==common_ancestor <-- same value
418 * ... <-- possibly long path (one hop or more)
423 static void find_common_ancestors(const NetPoint* src, const NetPoint* dst,
424 /* OUT */ NetZoneImpl** common_ancestor, NetZoneImpl** src_ancestor,
425 NetZoneImpl** dst_ancestor)
427 /* Deal with the easy base case */
428 if (src->get_englobing_zone() == dst->get_englobing_zone()) {
429 *common_ancestor = src->get_englobing_zone();
430 *src_ancestor = *common_ancestor;
431 *dst_ancestor = *common_ancestor;
435 /* engage the full recursive search */
437 /* (1) find the path to root of src and dst*/
438 const NetZoneImpl* src_as = src->get_englobing_zone();
439 const NetZoneImpl* dst_as = dst->get_englobing_zone();
441 xbt_enforce(src_as, "Host %s must be in a netzone", src->get_cname());
442 xbt_enforce(dst_as, "Host %s must be in a netzone", dst->get_cname());
444 /* (2) find the path to the root routing component */
445 std::vector<NetZoneImpl*> path_src;
446 NetZoneImpl* current = src->get_englobing_zone();
447 while (current != nullptr) {
448 path_src.push_back(current);
449 current = current->get_parent();
451 std::vector<NetZoneImpl*> path_dst;
452 current = dst->get_englobing_zone();
453 while (current != nullptr) {
454 path_dst.push_back(current);
455 current = current->get_parent();
458 /* (3) find the common parent.
459 * Before that, index_src and index_dst may be different, they both point to nullptr in path_src/path_dst
460 * So we move them down simultaneously as long as they point to the same content.
462 * This works because all SimGrid platform have a unique root element (that is the last element of both paths).
464 NetZoneImpl* parent = nullptr; // the netzone we dropped on the previous loop iteration
465 while (path_src.size() > 1 && path_dst.size() > 1 && path_src.back() == path_dst.back()) {
466 parent = path_src.back();
471 /* (4) we found the difference at least. Finalize the returned values */
472 *src_ancestor = path_src.back(); /* the first different parent of src */
473 *dst_ancestor = path_dst.back(); /* the first different parent of dst */
474 if (*src_ancestor == *dst_ancestor) { // src is the ancestor of dst, or the contrary
475 *common_ancestor = *src_ancestor;
477 xbt_enforce(parent != nullptr);
478 *common_ancestor = parent;
482 /* PRECONDITION: this is the common ancestor of src and dst */
483 bool NetZoneImpl::get_bypass_route(const NetPoint* src, const NetPoint* dst,
484 /* OUT */ std::vector<resource::StandardLinkImpl*>& links, double* latency,
485 std::unordered_set<NetZoneImpl*>& netzones)
487 // If never set a bypass route return nullptr without any further computations
488 if (bypass_routes_.empty())
491 /* Base case, no recursion is needed */
492 if (dst->get_englobing_zone() == this && src->get_englobing_zone() == this) {
493 if (bypass_routes_.find({src, dst}) != bypass_routes_.end()) {
494 const BypassRoute* bypassedRoute = bypass_routes_.at({src, dst});
495 add_link_latency(links, bypassedRoute->links, latency);
496 XBT_DEBUG("Found a bypass route from '%s' to '%s' with %zu links", src->get_cname(), dst->get_cname(),
497 bypassedRoute->links.size());
503 /* Engage recursive search */
505 /* (1) find the path to the root routing component */
506 std::vector<NetZoneImpl*> path_src;
507 NetZoneImpl* current = src->get_englobing_zone();
508 while (current != nullptr) {
509 path_src.push_back(current);
510 current = current->parent_;
513 std::vector<NetZoneImpl*> path_dst;
514 current = dst->get_englobing_zone();
515 while (current != nullptr) {
516 path_dst.push_back(current);
517 current = current->parent_;
520 /* (2) find the common parent */
521 while (path_src.size() > 1 && path_dst.size() > 1 && path_src.back() == path_dst.back()) {
526 /* (3) Search for a bypass making the path up to the ancestor useless */
527 const BypassRoute* bypassedRoute = nullptr;
528 std::pair<kernel::routing::NetPoint*, kernel::routing::NetPoint*> key;
529 // Search for a bypass with the given indices. Returns true if found. Initialize variables `bypassedRoute' and `key'.
530 auto lookup = [&bypassedRoute, &key, &path_src, &path_dst, this](unsigned src_index, unsigned dst_index) {
531 if (src_index < path_src.size() && dst_index < path_dst.size()) {
532 key = {path_src[src_index]->netpoint_, path_dst[dst_index]->netpoint_};
533 auto bpr = bypass_routes_.find(key);
534 if (bpr != bypass_routes_.end()) {
535 bypassedRoute = bpr->second;
542 for (unsigned max = 0, max_index = std::max(path_src.size(), path_dst.size()); max < max_index; max++) {
543 for (unsigned i = 0; i < max; i++) {
544 if (lookup(i, max) || lookup(max, i))
547 if (bypassedRoute || lookup(max, max))
551 /* (4) If we have the bypass, use it. If not, caller will do the Right Thing. */
553 XBT_DEBUG("Found a bypass route from '%s' to '%s' with %zu links. We may have to complete it with recursive "
555 src->get_cname(), dst->get_cname(), bypassedRoute->links.size());
556 if (src != key.first)
557 get_global_route_with_netzones(src, bypassedRoute->gw_src, links, latency, netzones);
558 add_link_latency(links, bypassedRoute->links, latency);
559 if (dst != key.second)
560 get_global_route_with_netzones(bypassedRoute->gw_dst, dst, links, latency, netzones);
563 XBT_DEBUG("No bypass route from '%s' to '%s'.", src->get_cname(), dst->get_cname());
567 void NetZoneImpl::get_global_route(const NetPoint* src, const NetPoint* dst,
568 /* OUT */ std::vector<resource::StandardLinkImpl*>& links, double* latency)
570 std::unordered_set<NetZoneImpl*> netzones;
571 get_global_route_with_netzones(src, dst, links, latency, netzones);
574 void NetZoneImpl::get_global_route_with_netzones(const NetPoint* src, const NetPoint* dst,
575 /* OUT */ std::vector<resource::StandardLinkImpl*>& links,
576 double* latency, std::unordered_set<NetZoneImpl*>& netzones)
580 XBT_DEBUG("Resolve route from '%s' to '%s'", src->get_cname(), dst->get_cname());
582 /* Find how src and dst are interconnected */
583 NetZoneImpl* common_ancestor;
584 NetZoneImpl* src_ancestor;
585 NetZoneImpl* dst_ancestor;
586 find_common_ancestors(src, dst, &common_ancestor, &src_ancestor, &dst_ancestor);
587 XBT_DEBUG("find_common_ancestors: common ancestor '%s' src ancestor '%s' dst ancestor '%s'",
588 common_ancestor->get_cname(), src_ancestor->get_cname(), dst_ancestor->get_cname());
590 netzones.insert(src->get_englobing_zone());
591 netzones.insert(dst->get_englobing_zone());
592 netzones.insert(common_ancestor);
593 /* Check whether a direct bypass is defined. If so, use it and bail out */
594 if (common_ancestor->get_bypass_route(src, dst, links, latency, netzones))
597 /* If src and dst are in the same netzone, life is good */
598 if (src_ancestor == dst_ancestor) { /* ROUTING_BASE */
599 route.link_list_ = std::move(links);
600 common_ancestor->get_local_route(src, dst, &route, latency);
601 links = std::move(route.link_list_);
605 /* Not in the same netzone, no bypass. We'll have to find our path between the netzones recursively */
606 common_ancestor->get_local_route(src_ancestor->netpoint_, dst_ancestor->netpoint_, &route, latency);
607 xbt_enforce((route.gw_src_ != nullptr) && (route.gw_dst_ != nullptr), "Bad gateways for route from '%s' to '%s'.",
608 src->get_cname(), dst->get_cname());
610 /* If source gateway is not our source, we have to recursively find our way up to this point */
611 if (src != route.gw_src_)
612 get_global_route_with_netzones(src, route.gw_src_, links, latency, netzones);
613 links.insert(links.end(), begin(route.link_list_), end(route.link_list_));
615 /* If dest gateway is not our destination, we have to recursively find our way from this point */
616 if (route.gw_dst_ != dst)
617 get_global_route_with_netzones(route.gw_dst_, dst, links, latency, netzones);
620 void NetZoneImpl::get_graph(const s_xbt_graph_t* graph, std::map<std::string, xbt_node_t, std::less<>>* nodes,
621 std::map<std::string, xbt_edge_t, std::less<>>* edges)
623 std::vector<NetPoint*> vertices = get_vertices();
625 for (auto const* my_src : vertices) {
626 for (auto const* my_dst : vertices) {
627 if (my_src == my_dst)
632 get_local_route(my_src, my_dst, &route, nullptr);
634 XBT_DEBUG("get_route_and_latency %s -> %s", my_src->get_cname(), my_dst->get_cname());
638 const char* previous_name;
639 const char* current_name;
642 previous = new_xbt_graph_node(graph, route.gw_src_->get_cname(), nodes);
643 previous_name = route.gw_src_->get_cname();
645 previous = new_xbt_graph_node(graph, my_src->get_cname(), nodes);
646 previous_name = my_src->get_cname();
649 for (auto const& link : route.link_list_) {
650 const char* link_name = link->get_cname();
651 current = new_xbt_graph_node(graph, link_name, nodes);
652 current_name = link_name;
653 new_xbt_graph_edge(graph, previous, current, edges);
654 XBT_DEBUG(" %s -> %s", previous_name, current_name);
656 previous_name = current_name;
660 current = new_xbt_graph_node(graph, route.gw_dst_->get_cname(), nodes);
661 current_name = route.gw_dst_->get_cname();
663 current = new_xbt_graph_node(graph, my_dst->get_cname(), nodes);
664 current_name = my_dst->get_cname();
666 new_xbt_graph_edge(graph, previous, current, edges);
667 XBT_DEBUG(" %s -> %s", previous_name, current_name);
672 void NetZoneImpl::set_gateway(const std::string& name, NetPoint* router)
674 xbt_enforce(not sealed_, "Impossible to create gateway: %s. NetZone %s already sealed", name.c_str(), get_cname());
675 if (auto gateway_it = gateways_.find(name); gateway_it != gateways_.end())
676 xbt_die("Impossible to create a gateway named %s. It already exists", name.c_str());
678 gateways_[name] = router;
681 NetPoint* NetZoneImpl::get_gateway() const
683 xbt_enforce(not gateways_.empty(), "No default gateway has been defined for NetZone '%s'. Try to seal it first", get_cname());
684 xbt_enforce(gateways_.size() < 2, "NetZone '%s' has more than one gateway, please provide a gateway name", get_cname());
685 auto gateway_it = gateways_.find("default");
686 xbt_enforce(gateway_it != gateways_.end(), "NetZone '%s' hasno default gateway, please define one", get_cname());
687 return gateway_it->second;
690 void NetZoneImpl::seal()
692 /* already sealed netzone */
695 do_seal(); // derived class' specific sealing procedure
697 // for zone with a single host, this host is its own default gateway
698 if (gateways_.empty() && hosts_.size() == 1)
699 gateways_["default"] = hosts_.begin()->second->get_iface()->get_netpoint();
701 /* seals sub-netzones and hosts */
702 for (auto* host : get_all_hosts()) {
707 for (auto const& [_, link] : links_)
708 link->get_iface()->seal();
710 for (auto* sub_net : get_children()) {
714 s4u::NetZone::on_seal(piface_);
717 void NetZoneImpl::set_parent(NetZoneImpl* parent)
719 xbt_enforce(not sealed_, "Impossible to set parent to an already sealed NetZone(%s)", this->get_cname());
721 netpoint_->set_englobing_zone(parent_);
723 /* adding this class as child */
724 parent->add_child(this);
725 /* copying models from parent host, to be reviewed when we allow multi-models */
726 set_network_model(parent->get_network_model());
727 set_cpu_pm_model(parent->get_cpu_pm_model());
728 set_cpu_vm_model(parent->get_cpu_vm_model());
729 set_disk_model(parent->get_disk_model());
730 set_host_model(parent->get_host_model());
734 void NetZoneImpl::set_network_model(std::shared_ptr<resource::NetworkModel> netmodel)
736 xbt_enforce(not sealed_, "Impossible to set network model to an already sealed NetZone(%s)", this->get_cname());
737 network_model_ = std::move(netmodel);
740 void NetZoneImpl::set_cpu_vm_model(std::shared_ptr<resource::CpuModel> cpu_model)
742 xbt_enforce(not sealed_, "Impossible to set CPU model to an already sealed NetZone(%s)", this->get_cname());
743 cpu_model_vm_ = std::move(cpu_model);
746 void NetZoneImpl::set_cpu_pm_model(std::shared_ptr<resource::CpuModel> cpu_model)
748 xbt_enforce(not sealed_, "Impossible to set CPU model to an already sealed NetZone(%s)", this->get_cname());
749 cpu_model_pm_ = std::move(cpu_model);
752 void NetZoneImpl::set_disk_model(std::shared_ptr<resource::DiskModel> disk_model)
754 xbt_enforce(not sealed_, "Impossible to set disk model to an already sealed NetZone(%s)", this->get_cname());
755 disk_model_ = std::move(disk_model);
758 void NetZoneImpl::set_host_model(std::shared_ptr<resource::HostModel> host_model)
760 xbt_enforce(not sealed_, "Impossible to set host model to an already sealed NetZone(%s)", this->get_cname());
761 host_model_ = std::move(host_model);
764 const NetZoneImpl* NetZoneImpl::get_netzone_recursive(const NetPoint* netpoint) const
766 xbt_enforce(netpoint && netpoint->is_netzone(), "Netpoint %s must be of the type NetZone",
767 netpoint ? netpoint->get_cname() : "nullptr");
769 if (netpoint == netpoint_)
772 for (const auto* children : children_) {
773 const NetZoneImpl* netzone = children->get_netzone_recursive(netpoint);
780 bool NetZoneImpl::is_component_recursive(const NetPoint* netpoint) const
782 /* check direct components */
783 if (std::any_of(begin(vertices_), end(vertices_), [netpoint](const auto* elem) { return elem == netpoint; }))
786 /* check childrens */
787 return std::any_of(begin(children_), end(children_),
788 [netpoint](const auto* child) { return child->is_component_recursive(netpoint); });
790 } // namespace simgrid::kernel::routing