comm->wait();
xbt_assert(comm->get_sender(), "No sender received");
XBT_INFO("Got a message sent by '%s'", comm->get_sender()->get_cname());
simgrid::s4u::this_actor::sleep_for(2.0);
XBT_INFO("Did I tell you that I got a message sent by '%s'?", comm->get_sender()->get_cname());
comm->wait();
xbt_assert(comm->get_sender(), "No sender received");
XBT_INFO("Got a message sent by '%s'", comm->get_sender()->get_cname());
simgrid::s4u::this_actor::sleep_for(2.0);
XBT_INFO("Did I tell you that I got a message sent by '%s'?", comm->get_sender()->get_cname());