1 /* Copyright (c) 2007-2022. The SimGrid Team. All rights reserved. */
3 /* This program is free software; you can redistribute it and/or modify it
4 * under the terms of the license (GNU LGPL) which comes with this package. */
6 #ifndef SIMGRID_MC_STATE_HPP
7 #define SIMGRID_MC_STATE_HPP
9 #include "src/mc/Transition.hpp"
10 #include "src/mc/sosp/Snapshot.hpp"
11 #include "src/mc/mc_comm_pattern.hpp"
16 /* A node in the exploration graph (kind-of) */
17 class XBT_PRIVATE State {
18 Transition transition_;
21 /** Sequential state number (used for debugging) */
24 /** State's exploration status by process */
25 std::vector<ActorState> actor_states_;
27 /** The simcall which was executed, going out of that state */
28 s_smx_simcall executed_req_;
30 /** Observer of the transition leading to that sate */
31 RemotePtr<kernel::actor::SimcallObserver> remote_observer_;
33 /** Snapshot of system state (if needed) */
34 std::shared_ptr<simgrid::mc::Snapshot> system_state_;
36 // For CommunicationDeterminismChecker
37 std::vector<std::vector<simgrid::mc::PatternCommunication>> incomplete_comm_pattern_;
38 std::vector<unsigned> communication_indices_;
40 explicit State(unsigned long state_number);
42 /* Returns a positive number if there is another transition to pick, or -1 if not */
43 int next_transition() const;
45 /* Explore a new path */
46 RemotePtr<simgrid::kernel::actor::SimcallObserver> execute_next(int next);
48 std::size_t count_todo() const;
49 void mark_todo(aid_t actor) { this->actor_states_[actor].mark_todo(); }
50 Transition* get_transition() const;
53 void copy_incomplete_comm_pattern();
54 void copy_index_comm_pattern();