+ if (old->is_waiting_on(old))
+ assert_bug("Deadlock detected (thread %u)", curr_thread_num);
+
+ ModelAction *act = old->get_pending();
+
+ if (act && execution->is_enabled(old) && !execution->check_action_enabled(act)) {
+ scheduler->sleep(old);
+ }
+ if (!thread_chosen && act && execution->is_enabled(old) && (old->get_state() != THREAD_BLOCKED) ) {
+ if (act->is_write()) {
+ std::memory_order order = act->get_mo();
+ if (order == std::memory_order_relaxed || \
+ order == std::memory_order_release) {
+ chosen_thread = old;
+ thread_chosen = true;
+ }
+ } else if (act->get_type() == THREAD_CREATE || \
+ act->get_type() == PTHREAD_CREATE || \
+ act->get_type() == THREAD_START || \
+ act->get_type() == THREAD_FINISH) {
+ chosen_thread = old;
+ thread_chosen = true;
+ }
+ }
+