- s_mc_message_simcall_handle_t m;
- memset(&m, 0, sizeof(m));
- m.type = MC_MESSAGE_SIMCALL_HANDLE;
- m.pid = transition.pid_;
- m.value = transition.argument_;
- this->process_->get_channel().send(m);
- this->process_->clear_cache();
- if (this->process_->running())
- event_base_dispatch(base_);
+ s_mc_message_simcall_execute_t m = {};
+ m.type = MessageType::SIMCALL_EXECUTE;
+ m.aid_ = aid;
+ m.times_considered_ = times_considered;
+ checker_side_.get_channel().send(m);
+
+ this->remote_process_->clear_cache();
+ if (this->remote_process_->running())
+ checker_side_.dispatch(); // The app may send messages while processing the transition
+
+ s_mc_message_simcall_execute_answer_t answer;
+ ssize_t s = checker_side_.get_channel().receive(answer);
+ xbt_assert(s != -1, "Could not receive message");
+ xbt_assert(s == sizeof(answer) && answer.type == MessageType::SIMCALL_EXECUTE_ANSWER,
+ "Received unexpected message %s (%i, size=%i) "
+ "expected MessageType::SIMCALL_EXECUTE_ANSWER (%i, size=%i)",
+ to_c_str(answer.type), (int)answer.type, (int)s, (int)MessageType::SIMCALL_EXECUTE_ANSWER,
+ (int)sizeof(answer));
+
+ if (new_transition) {
+ std::stringstream stream(answer.buffer.data());
+ return deserialize_transition(aid, times_considered, stream);
+ } else
+ return nullptr;