+ seq_number(ACTION_INITIAL_CLOCK)
+{
+ /* References to NULL atomic variables can end up here */
+ ASSERT(loc || type == ATOMIC_FENCE || type == ATOMIC_NOP);
+
+ Thread *t = thread ? thread : thread_current();
+ this->tid = t!= NULL ? t->get_id() : -1;
+}
+
+
+/**
+ * @brief Construct a new ModelAction for sleep actions
+ *
+ * @param type The type of action: THREAD_SLEEP
+ * @param order The memory order of this action. A "don't care" for non-ATOMIC
+ * actions (e.g., THREAD_* or MODEL_* actions).
+ * @param loc The location that this action acts upon
+ * @param value The time duration a thread is scheduled to sleep.
+ * @param _time The this sleep action is constructed
+ */
+ModelAction::ModelAction(action_type_t type, memory_order order, uint64_t value, uint64_t _time) :
+ location(NULL),
+ position(NULL),
+ time(_time),
+ last_fence_release(NULL),
+ cv(NULL),
+ rf_cv(NULL),
+ action_ref(NULL),
+ value(value),
+ type(type),
+ order(order),
+ original_order(order),
+ seq_number(ACTION_INITIAL_CLOCK)
+{
+ Thread *t = thread_current();
+ this->tid = t!= NULL ? t->get_id() : -1;
+}
+
+/**
+ * @brief Construct a new ModelAction
+ *
+ * @param type The type of action
+ * @param order The memory order of this action. A "don't care" for non-ATOMIC
+ * actions (e.g., THREAD_* or MODEL_* actions).
+ * @param loc The location that this action acts upon
+ * @param value (optional) A value associated with the action (e.g., the value
+ * read or written). Defaults to a given macro constant, for debugging purposes.
+ * @param size (optional) The Thread in which this action occurred. If NULL
+ * (default), then a Thread is assigned according to the scheduler.
+ */
+ModelAction::ModelAction(action_type_t type, memory_order order, void *loc,
+ uint64_t value, int size) :