+#include "simgrid/s4u/Engine.hpp"
+#include "simgrid/s4u/Host.hpp"
+#include "simgrid/s4u/Mailbox.hpp"
+#include "simgrid/s4u/NetZone.hpp"
+#include "simgrid/s4u/Storage.hpp"
+#include "simgrid/simix.h"
+#include "src/kernel/EngineImpl.hpp"
+#include "src/kernel/routing/NetPoint.hpp"
+#include "src/kernel/routing/NetZoneImpl.hpp"
+#include "src/surf/network_interface.hpp"
+#include "surf/surf.h" // routing_platf. FIXME:KILLME. SOON
+
+XBT_LOG_NEW_CATEGORY(s4u,"Log channels of the S4U (Simgrid for you) interface");
+
+namespace simgrid {
+namespace s4u {
+xbt::signal<void()> onPlatformCreated;
+xbt::signal<void()> onSimulationEnd;
+xbt::signal<void(double)> onTimeAdvance;
+
+Engine *Engine::instance_ = nullptr; /* That singleton is awful, but I don't see no other solution right now. */
+
+
+Engine::Engine(int *argc, char **argv) {
+ xbt_assert(s4u::Engine::instance_ == nullptr, "It is currently forbidden to create more than one instance of s4u::Engine");
+ s4u::Engine::instance_ = this;
+ pimpl = new kernel::EngineImpl();
+
+ TRACE_global_init();
+ SIMIX_global_init(argc, argv);
+}
+
+Engine::~Engine()
+{
+ delete pimpl;
+ s4u::Engine::instance_ = nullptr;
+}
+
+Engine* Engine::getInstance()
+{
+ if (s4u::Engine::instance_ == nullptr)
+ new Engine(0,nullptr);
+ return s4u::Engine::instance_;
+}
+
+void Engine::shutdown() {
+ delete s4u::Engine::instance_;
+}