class Node {
public:
- Node(ModelAction *act = NULL, int nthreads = 1);
+ Node(ModelAction *act = NULL, Node *par = NULL, int nthreads = 1);
~Node();
/* return true = thread choice has already been explored */
bool has_been_explored(thread_id_t tid);
bool is_enabled(Thread *t);
ModelAction * get_action() { return action; }
+ /** @return the parent Node to this Node; that is, the action that
+ * occurred previously in the stack. */
+ Node * get_parent() const { return parent; }
+
void add_read_from(ModelAction *act);
void print();
void explore(thread_id_t tid);
ModelAction *action;
+ Node *parent;
int num_threads;
std::vector< bool, MyAlloc<bool> > explored_children;
std::vector< bool, MyAlloc<bool> > backtrack;