if (requests[i]->action_ != nullptr) {
XBT_DEBUG("Waiting any %p ", requests[i]);
xbt_dynar_push(&comms, &requests[i]->action_);
if (requests[i]->action_ != nullptr) {
XBT_DEBUG("Waiting any %p ", requests[i]);
xbt_dynar_push(&comms, &requests[i]->action_);