-/* Copyright (c) 2008-2022. The SimGrid Team. All rights reserved. */
+/* Copyright (c) 2008-2023. The SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#include "src/mc/api/State.hpp"
-#include "src/mc/api.hpp"
#include "src/mc/mc_config.hpp"
#include <boost/range/algorithm.hpp>
XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_state, mc, "Logging specific to MC states");
-namespace simgrid {
-namespace mc {
+namespace simgrid::mc {
long State::expended_states_ = 0;
-State::State() : num_(++expended_states_)
+State::State(const RemoteApp& remote_app) : num_(++expended_states_)
{
- const unsigned long maxpid = Api::get().get_maxpid();
- actor_states_.resize(maxpid);
+ remote_app.get_actors_status(actors_to_run_);
+
transition_.reset(new Transition());
/* Stateful model checking */
if ((_sg_mc_checkpoint > 0 && (num_ % _sg_mc_checkpoint == 0)) || _sg_mc_termination) {
- auto snapshot_ptr = Api::get().take_snapshot(num_);
- system_state_ = std::shared_ptr<simgrid::mc::Snapshot>(snapshot_ptr);
+ system_state_ = std::make_shared<simgrid::mc::Snapshot>(num_);
}
}
+State::State(const RemoteApp& remote_app, const State* previous_state) : num_(++expended_states_)
+{
+
+ remote_app.get_actors_status(actors_to_run_);
+
+ transition_.reset(new Transition());
+ /* Stateful model checking */
+ if ((_sg_mc_checkpoint > 0 && (num_ % _sg_mc_checkpoint == 0)) || _sg_mc_termination) {
+ system_state_ = std::make_shared<simgrid::mc::Snapshot>(num_);
+ }
+
+ /* For each actor in the previous sleep set, keep it if it is not dependent with current transition.
+ * And if we kept it and the actor is enabled in this state, mark the actor as already done, so that
+ * it is not explored*/
+ for (auto & [aid, transition] : previous_state->get_sleep_set()) {
+
+ if (not previous_state->get_transition()->depends(&transition)) {
+
+ sleep_set_.emplace(aid, transition);
+ if (actors_to_run_.count(aid) != 0) {
+ XBT_DEBUG("Actor %ld will not be explored, for it is in the sleep set", aid);
+
+ actors_to_run_.at(aid).mark_done();
+ }
+ }
+ else
+ XBT_DEBUG("Transition >>%s<< removed from the sleep set because it was dependent with >>%s<<", transition.to_string().c_str(), previous_state->get_transition()->to_string().c_str());
+
+ }
+
+}
+
std::size_t State::count_todo() const
{
- return boost::range::count_if(this->actor_states_, [](simgrid::mc::ActorState const& a) { return a.is_todo(); });
+ return boost::range::count_if(this->actors_to_run_, [](auto& pair) { return pair.second.is_todo(); });
}
+ void State::mark_all_todo()
+{
+ for (auto & [aid, actor] : actors_to_run_) {
+
+ if (actor.is_enabled() and not actor.is_done() and not actor.is_todo())
+ actor.mark_todo();
+
+ }
+}
+
Transition* State::get_transition() const
{
return transition_.get();
}
-int State::next_transition() const
+aid_t State::next_transition() const
{
- std::vector<ActorInformation>& actors = mc_model_checker->get_remote_process().actors();
- XBT_DEBUG("Search for an actor to run. %zu actors to consider", actors.size());
- for (unsigned int i = 0; i < actors.size(); i++) {
- /* Only consider actors (1) marked as interleaving by the checker and (2) currently enabled in the application*/
- if (aid_t aid = actors[i].copy.get_buffer()->get_pid();
- not actor_states_[aid].is_todo() || not Api::get().get_session().actor_is_enabled(aid))
- continue;
-
- return i;
+ XBT_DEBUG("Search for an actor to run. %zu actors to consider", actors_to_run_.size());
+ for (auto const& [aid, actor] : actors_to_run_) {
+ /* Only consider actors (1) marked as interleaving by the checker and (2) currently enabled in the application */
+ if (not actor.is_todo() || not actor.is_enabled() || actor.is_done()) {
+
+ if (not actor.is_todo())
+ XBT_DEBUG("Can't run actor %ld because it is not todo", aid);
+
+ if (not actor.is_enabled())
+ XBT_DEBUG("Can't run actor %ld because it is not enabled", aid);
+
+ if (actor.is_done())
+ XBT_DEBUG("Can't run actor %ld because it has already been done", aid);
+
+
+ continue;
+
+
+ }
+
+ return aid;
}
return -1;
}
-void State::execute_next(int next)
+void State::execute_next(aid_t next)
{
- std::vector<ActorInformation>& actors = mc_model_checker->get_remote_process().actors();
-
- const kernel::actor::ActorImpl* actor = actors[next].copy.get_buffer();
- aid_t aid = actor->get_pid();
- int times_considered;
-
- simgrid::mc::ActorState* actor_state = &actor_states_[aid];
/* This actor is ready to be executed. Prepare its execution when simcall_handle will be called on it */
- times_considered = actor_state->get_times_considered_and_inc();
- if (actor->simcall_.mc_max_consider_ <= actor_state->get_times_considered())
- actor_state->set_done();
+ const unsigned times_considered = actors_to_run_.at(next).do_consider();
- XBT_DEBUG("Let's run actor %ld (times_considered = %d)", aid, times_considered);
+ XBT_DEBUG("Let's run actor %ld (times_considered = %u)", next, times_considered);
Transition::executed_transitions_++;
- transition_.reset(mc_model_checker->handle_simcall(aid, times_considered, true));
+ transition_.reset(mc_model_checker->handle_simcall(next, times_considered, true));
mc_model_checker->wait_for_requests();
}
-} // namespace mc
-} // namespace simgrid
+} // namespace simgrid::mc