+typedef simgrid::kernel::context::Context* smx_context_t;
+typedef simgrid::simix::ActorImpl* smx_actor_t;
+typedef simgrid::simix::MutexImpl* smx_mutex_t;
+typedef simgrid::kernel::activity::MailboxImpl* smx_mailbox_t;
+typedef simgrid::surf::FileImpl* surf_file_t;
+