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BasicGuide handle next_transition if asked to
[simgrid.git] / src / mc / api / State.cpp
index 6b49c65..008a844 100644 (file)
@@ -4,6 +4,8 @@
  * under the terms of the license (GNU LGPL) which comes with this package. */
 
 #include "src/mc/api/State.hpp"
+#include "src/mc/api/guide/BasicGuide.hpp"
+#include "src/mc/explo/Exploration.hpp"
 #include "src/mc/mc_config.hpp"
 
 #include <boost/range/algorithm.hpp>
@@ -14,56 +16,58 @@ namespace simgrid::mc {
 
 long State::expended_states_ = 0;
 
-State::State(RemoteApp& remote_app) : num_(++expended_states_)
+State::State(RemoteApp& remote_app) : num_(++expended_states_), guide(std::make_unique<BasicGuide>())
 {
-  remote_app.get_actors_status(actors_to_run_);
+  remote_app.get_actors_status(guide->actors_to_run_);
 
   /* 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_, remote_app.get_page_store());
+    system_state_ = std::make_shared<simgrid::mc::Snapshot>(num_, remote_app.get_page_store(),
+                                                            remote_app.get_remote_process_memory());
 }
 
-State::State(RemoteApp& remote_app, const State* previous_state)
-    : default_transition_(std::make_unique<Transition>()), num_(++expended_states_)
+State::State(RemoteApp& remote_app, const State* parent_state)
+    : num_(++expended_states_), parent_state_(parent_state), guide(std::make_unique<BasicGuide>())
 {
 
-  remote_app.get_actors_status(actors_to_run_);
-
-  transition_ = default_transition_.get();
+  remote_app.get_actors_status(guide->actors_to_run_);
 
   /* 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_, remote_app.get_page_store());
-  }
-
-  /* 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());
+  if ((_sg_mc_checkpoint > 0 && (num_ % _sg_mc_checkpoint == 0)) || _sg_mc_termination)
+    system_state_ = std::make_shared<simgrid::mc::Snapshot>(num_, remote_app.get_page_store(),
+                                                            remote_app.get_remote_process_memory());
+
+  /* If we want sleep set reduction, copy the sleep set and eventually removes things from it */
+  if (_sg_mc_sleep_set) {
+    /* 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] : parent_state_->get_sleep_set()) {
+
+      if (not parent_state_->get_transition()->depends(&transition)) {
+
+        sleep_set_.emplace(aid, transition);
+        if (guide->actors_to_run_.count(aid) != 0) {
+          XBT_DEBUG("Actor %ld will not be explored, for it is in the sleep set", aid);
+
+          guide->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(), parent_state_->get_transition()->to_string().c_str());
+    }
   }
 }
 
 std::size_t State::count_todo() const
 {
-  return boost::range::count_if(this->actors_to_run_, [](auto& pair) { return pair.second.is_todo(); });
+  return boost::range::count_if(this->guide->actors_to_run_, [](auto& pair) { return pair.second.is_todo(); });
 }
 
 void State::mark_all_enabled_todo()
 {
   for (auto const& [aid, _] : this->get_actors_list()) {
-      if (this->is_actor_enabled(aid) and not is_actor_done(aid)) {
+    if (this->is_actor_enabled(aid) and not is_actor_done(aid)) {
       this->mark_todo(aid);
     }
   }
@@ -76,8 +80,8 @@ Transition* State::get_transition() const
 
 aid_t State::next_transition() const
 {
-  XBT_DEBUG("Search for an actor to run. %zu actors to consider", actors_to_run_.size());
-  for (auto const& [aid, actor] : actors_to_run_) {
+  XBT_DEBUG("Search for an actor to run. %zu actors to consider", guide->actors_to_run_.size());
+  for (auto const& [aid, actor] : guide->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()) {
 
@@ -98,13 +102,19 @@ aid_t State::next_transition() const
   return -1;
 }
 
-void State::execute_next(aid_t next)
+std::pair<aid_t, double> State::next_transition_guided() const
+{
+  return guide->next_transition();
+}
+
+// This should be done in GuidedState, or at least interact with it
+void State::execute_next(aid_t next, RemoteApp& app)
 {
   // This actor is ready to be executed. Execution involves three phases:
 
   // 1. Identify the appropriate ActorState to prepare for execution
   // when simcall_handle will be called on it
-  auto& actor_state                        = actors_to_run_.at(next);
+  auto& actor_state                        = guide->actors_to_run_.at(next);
   const unsigned times_considered          = actor_state.do_consider();
   const auto* expected_executed_transition = actor_state.get_transition(times_considered);
   xbt_assert(expected_executed_transition != nullptr,
@@ -114,7 +124,7 @@ void State::execute_next(aid_t next)
 
   // 2. Execute the actor according to the preparation above
   Transition::executed_transitions_++;
-  auto* just_executed = mc_model_checker->handle_simcall(next, times_considered, true);
+  auto* just_executed = app.handle_simcall(next, times_considered, true);
   xbt_assert(just_executed->type_ == expected_executed_transition->type_,
              "The transition that was just executed by actor %ld, viz:\n"
              "%s\n"
@@ -133,6 +143,6 @@ void State::execute_next(aid_t next)
   auto executed_transition = std::unique_ptr<Transition>(just_executed);
   actor_state.set_transition(std::move(executed_transition), times_considered);
 
-  mc_model_checker->wait_for_requests();
+  app.wait_for_requests();
 }
 } // namespace simgrid::mc