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 using simgrid::mc::remote;
19 long State::expended_states_ = 0;
21 State::State() : num_(++expended_states_)
23 const unsigned long maxpid = Api::get().get_maxpid();
24 actor_states_.resize(maxpid);
25 transition_.reset(new Transition());
26 /* Stateful model checking */
27 if ((_sg_mc_checkpoint > 0 && (num_ % _sg_mc_checkpoint == 0)) || _sg_mc_termination) {
28 auto snapshot_ptr = Api::get().take_snapshot(num_);
29 system_state_ = std::shared_ptr<simgrid::mc::Snapshot>(snapshot_ptr);
33 std::size_t State::count_todo() const
35 return boost::range::count_if(this->actor_states_, [](simgrid::mc::ActorState const& a) { return a.is_todo(); });
38 Transition* State::get_transition() const
40 return transition_.get();
43 int State::next_transition() const
45 std::vector<ActorInformation>& actors = mc_model_checker->get_remote_process().actors();
46 XBT_DEBUG("Search for an actor to run. %zu actors to consider", actors.size());
47 for (unsigned int i = 0; i < actors.size(); i++) {
48 aid_t aid = actors[i].copy.get_buffer()->get_pid();
49 const ActorState* actor_state = &actor_states_[aid];
51 /* Only consider actors (1) marked as interleaving by the checker and (2) currently enabled in the application*/
52 if (not actor_state->is_todo() || not Api::get().get_session().actor_is_enabled(aid))
59 void State::execute_next(int next)
61 std::vector<ActorInformation>& actors = mc_model_checker->get_remote_process().actors();
63 const kernel::actor::ActorImpl* actor = actors[next].copy.get_buffer();
64 aid_t aid = actor->get_pid();
67 simgrid::mc::ActorState* actor_state = &actor_states_[aid];
68 /* This actor is ready to be executed. Prepare its execution when simcall_handle will be called on it */
69 times_considered = actor_state->get_times_considered_and_inc();
70 if (actor->simcall_.mc_max_consider_ <= actor_state->get_times_considered())
71 actor_state->set_done();
73 XBT_DEBUG("Let's run actor %ld (times_considered = %d)", aid, times_considered);
75 Transition::executed_transitions_++;
77 transition_.reset(mc_model_checker->handle_simcall(aid, times_considered, true));
78 mc_model_checker->wait_for_requests();
81 } // namespace simgrid