/* A node in the exploration graph (kind-of) */
class XBT_PRIVATE State {
+ static long expended_states_; /* Count total amount of states, for stats */
+
+ /* Outgoing transition: what was the last transition that we took to leave this state? Useful for replay */
+ std::unique_ptr<Transition> transition_;
+
public:
+ explicit State();
+
/** Sequential state number (used for debugging) */
- int num_ = 0;
+ long num_ = 0;
/** State's exploration status by process */
std::vector<ActorState> actor_states_;
- Transition transition_;
-
/** The simcall which was executed, going out of that state */
s_smx_simcall executed_req_;
- /** Observer of the transition leading to that sate */
- RemotePtr<kernel::actor::SimcallObserver> remote_observer_;
-
/** Snapshot of system state (if needed) */
std::shared_ptr<simgrid::mc::Snapshot> system_state_;
std::vector<std::vector<simgrid::mc::PatternCommunication>> incomplete_comm_pattern_;
std::vector<unsigned> communication_indices_;
- explicit State(unsigned long state_number);
+
+ /* Returns a positive number if there is another transition to pick, or -1 if not */
+ int next_transition() const;
+
+ /* Explore a new path */
+ Transition* execute_next(int next);
std::size_t count_todo() const;
- void mark_todo(const simgrid::kernel::actor::ActorImpl* actor) { this->actor_states_[actor->get_pid()].mark_todo(); }
- Transition get_transition() const;
+ void mark_todo(aid_t actor) { this->actor_states_[actor].mark_todo(); }
+ Transition* get_transition() const;
+ void set_transition(Transition* t) { transition_.reset(t); }
+
+ /* Returns the total amount of states created so far (for statistics) */
+ static long get_expanded_states() { return expended_states_; }
private:
void copy_incomplete_comm_pattern();
