+
+s4u::NetZone* Engine::netRoot()
+{
+ return pimpl->netRoot_;
+}
+
+static s4u::NetZone* netzoneByNameRecursive(s4u::NetZone* current, const char* name)
+{
+ if(!strcmp(current->name(), name))
+ return current;
+
+ xbt_dict_cursor_t cursor = nullptr;
+ char *key;
+ NetZone_t elem;
+ xbt_dict_foreach(current->children(), cursor, key, elem) {
+ simgrid::s4u::NetZone* tmp = netzoneByNameRecursive(elem, name);
+ if (tmp != nullptr )
+ return tmp;
+ }
+ return nullptr;
+}
+
+/** @brief Retrieve the NetZone of the given name (or nullptr if not found) */
+NetZone* Engine::netzoneByNameOrNull(const char* name)
+{
+ return netzoneByNameRecursive(netRoot(), name);
+}
+
+/** @brief Retrieve the netcard of the given name (or nullptr if not found) */
+simgrid::kernel::routing::NetCard* Engine::netcardByNameOrNull(const char* name)
+{
+ if (pimpl->netcards_.find(name) == pimpl->netcards_.end())
+ return nullptr;
+ return pimpl->netcards_.at(name);
+}
+/** @brief Fill the provided vector with all existing netcards */
+void Engine::netcardList(std::vector<simgrid::kernel::routing::NetCard*>* list)
+{
+ for (auto kv: pimpl->netcards_)
+ list->push_back(kv.second);
+}
+/** @brief Register a new netcard to the system */
+void Engine::netcardRegister(simgrid::kernel::routing::NetCard* card)
+{
+// simgrid::simix::kernelImmediate([&]{ FIXME: this segfaults in set_thread
+ pimpl->netcards_[card->name()] = card;
+// });
+}
+/** @brief Unregister a given netcard */
+void Engine::netcardUnregister(simgrid::kernel::routing::NetCard* card)
+{
+ simgrid::simix::kernelImmediate([&]{
+ pimpl->netcards_.erase(card->name());
+ });
+}
+}
+}