src/mc/Transition.cpp

   1 /* Copyright (c) 2015-2022. The SimGrid Team. All rights reserved.          */
   2
   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. */
   5
   6 #include "src/mc/Transition.hpp"
   7 #include "src/mc/ModelChecker.hpp"
   8 #include "src/mc/Session.hpp"
   9 #include "src/mc/mc_state.hpp"
  10 #include "src/mc/remote/RemoteProcess.hpp"
  11 #include "xbt/asserts.h"
  12
  13 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_transition, mc, "Logging specific to MC transitions");
  14
  15 namespace simgrid {
  16 namespace mc {
  17 unsigned long Transition::executed_transitions_ = 0;
  18
  19 std::string Transition::to_string()
  20 {
  21   xbt_assert(mc_model_checker != nullptr, "Must be called from MCer");
  22
  23   return textual_;
  24 }
  25 RemotePtr<simgrid::kernel::actor::SimcallObserver> Transition::execute(simgrid::mc::State* state, int next)
  26 {
  27   std::vector<ActorInformation>& actors = mc_model_checker->get_remote_process().actors();
  28
  29   kernel::actor::ActorImpl* actor = actors[next].copy.get_buffer();
  30   aid_t aid                       = actor->get_pid();
  31
  32   simgrid::mc::ActorState* actor_state = &state->actor_states_[aid];
  33   /* This actor is ready to be executed. Prepare its execution when simcall_handle will be called on it */
  34   if (actor->simcall_.observer_ != nullptr) {
  35     state->transition_.times_considered_ = actor_state->get_times_considered_and_inc();
  36     if (actor->simcall_.mc_max_consider_ <= actor_state->get_times_considered())
  37       actor_state->set_done();
  38   } else {
  39     state->transition_.times_considered_ = 0;
  40     actor_state->set_done();
  41   }
  42
  43   aid_                 = aid;
  44   state->executed_req_ = actor->simcall_;
  45
  46   textual_ = mc_model_checker->simcall_to_string(aid_, times_considered_);
  47   XBT_DEBUG("Let's run actor %ld, going for transition %s", aid, textual_.c_str());
  48
  49   return replay();
  50 }
  51 RemotePtr<simgrid::kernel::actor::SimcallObserver> Transition::replay()
  52 {
  53   executed_transitions_++;
  54
  55   simgrid::mc::RemotePtr<simgrid::kernel::actor::SimcallObserver> res = mc_model_checker->handle_simcall(*this);
  56   mc_model_checker->wait_for_requests();
  57
  58   return res;
  59 }
  60
  61 } // namespace mc
  62 } // namespace simgrid