+ if (!req)
+ return nullptr;
+
+ // Fetch the data of the request and translate it:
+
+ state->executed_req = *req;
+ state->req_num = *value;
+
+ /* The waitany and testany request are transformed into a wait or test request
+ * over the corresponding communication action so it can be treated later by
+ * the dependence function. */
+ switch (req->call) {
+ case SIMCALL_COMM_WAITANY: {
+ state->internal_req.call = SIMCALL_COMM_WAIT;
+ state->internal_req.issuer = req->issuer;
+ smx_synchro_t remote_comm;
+ read_element(mc_model_checker->process(),
+ &remote_comm, remote(simcall_comm_waitany__get__comms(req)),
+ *value, sizeof(remote_comm));
+ mc_model_checker->process().read(&state->internal_comm, remote(remote_comm));
+ simcall_comm_wait__set__comm(&state->internal_req, &state->internal_comm);
+ simcall_comm_wait__set__timeout(&state->internal_req, 0);
+ break;
+ }
+
+ case SIMCALL_COMM_TESTANY:
+ state->internal_req.call = SIMCALL_COMM_TEST;
+ state->internal_req.issuer = req->issuer;
+
+ if (*value > 0) {
+ smx_synchro_t remote_comm;
+ read_element(mc_model_checker->process(),
+ &remote_comm, remote(simcall_comm_testany__get__comms(req)),
+ *value, sizeof(remote_comm));
+ mc_model_checker->process().read(&state->internal_comm, remote(remote_comm));
+ }
+
+ simcall_comm_test__set__comm(&state->internal_req, &state->internal_comm);
+ simcall_comm_test__set__result(&state->internal_req, *value);
+ break;
+
+ case SIMCALL_COMM_WAIT:
+ state->internal_req = *req;
+ mc_model_checker->process().read_bytes(&state->internal_comm ,
+ sizeof(state->internal_comm), remote(simcall_comm_wait__get__comm(req)));
+ simcall_comm_wait__set__comm(&state->executed_req, &state->internal_comm);
+ simcall_comm_wait__set__comm(&state->internal_req, &state->internal_comm);
+ break;
+
+ case SIMCALL_COMM_TEST:
+ state->internal_req = *req;
+ mc_model_checker->process().read_bytes(&state->internal_comm,
+ sizeof(state->internal_comm), remote(simcall_comm_test__get__comm(req)));
+ simcall_comm_test__set__comm(&state->executed_req, &state->internal_comm);
+ simcall_comm_test__set__comm(&state->internal_req, &state->internal_comm);
+ break;
+
+ case SIMCALL_MC_RANDOM: {
+ state->internal_req = *req;
+ int random_max = simcall_mc_random__get__max(req);
+ if (*value != random_max)
+ for (auto& p : mc_model_checker->process().simix_processes()) {
+ simgrid::mc::ProcessState* procstate = &state->processStates[p.copy.pid];
+ const smx_process_t issuer = MC_smx_simcall_get_issuer(req);
+ if (p.copy.pid == issuer->pid) {
+ procstate->state = simgrid::mc::ProcessInterleaveState::more_interleave;
+ break;
+ }
+ }
+ break;
+ }
+
+ default:
+ state->internal_req = *req;
+ break;
+ }
+
+ return req;