1 /* Copyright (c) 2008-2022. 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 #include "src/mc/api/State.hpp"
7 #include "src/mc/api.hpp"
8 #include "src/mc/mc_config.hpp"
10 #include <boost/range/algorithm.hpp>
12 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_state, mc, "Logging specific to MC states");
14 namespace simgrid::mc {
16 long State::expended_states_ = 0;
18 State::State(Session& session) : num_(++expended_states_)
20 session.get_actors_status(actors_to_run_);
22 transition_.reset(new Transition());
23 /* Stateful model checking */
24 if ((_sg_mc_checkpoint > 0 && (num_ % _sg_mc_checkpoint == 0)) || _sg_mc_termination) {
25 auto snapshot_ptr = Api::get().take_snapshot(num_);
26 system_state_ = std::shared_ptr<simgrid::mc::Snapshot>(snapshot_ptr);
30 std::size_t State::count_todo() const
32 return boost::range::count_if(this->actors_to_run_, [](auto& pair) { return pair.second.is_todo(); });
35 Transition* State::get_transition() const
37 return transition_.get();
40 aid_t State::next_transition() const
42 XBT_DEBUG("Search for an actor to run. %zu actors to consider", actors_to_run_.size());
43 for (auto const& [aid, actor] : actors_to_run_) {
44 /* Only consider actors (1) marked as interleaving by the checker and (2) currently enabled in the application */
45 if (not actor.is_todo() || not actor.is_enabled())
52 void State::execute_next(aid_t next)
54 /* This actor is ready to be executed. Prepare its execution when simcall_handle will be called on it */
55 const unsigned times_considered = actors_to_run_.at(next).do_consider();
57 XBT_DEBUG("Let's run actor %ld (times_considered = %u)", next, times_considered);
59 Transition::executed_transitions_++;
61 transition_.reset(mc_model_checker->handle_simcall(next, times_considered, true));
62 mc_model_checker->wait_for_requests();
64 } // namespace simgrid::mc