src/mc/transition/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/Transition.hpp"
   7 #include "xbt/asserts.h"
   8 #include "xbt/string.hpp"
   9 #include <simgrid/config.h>
  10
  11 #if SIMGRID_HAVE_MC
  12 #include "src/mc/ModelChecker.hpp"
  13 #include "src/mc/transition/TransitionAny.hpp"
  14 #include "src/mc/transition/TransitionComm.hpp"
  15 #include "src/mc/transition/TransitionRandom.hpp"
  16 #endif
  17
  18 #include <sstream>
  19
  20 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_transition, mc, "Logging specific to MC transitions");
  21
  22 namespace simgrid {
  23 namespace mc {
  24 unsigned long Transition::executed_transitions_ = 0;
  25 unsigned long Transition::replayed_transitions_ = 0;
  26
  27 // Do not move this to the header, to ensure that we have a vtable for Transition
  28 Transition::~Transition() = default;
  29
  30 std::string Transition::to_string(bool) const
  31 {
  32   return "";
  33 }
  34 std::string Transition::dot_label() const
  35 {
  36   return xbt::string_printf("[(%ld)] %s", aid_, Transition::to_c_str(type_));
  37 }
  38 void Transition::replay() const
  39 {
  40   replayed_transitions_++;
  41
  42 #if SIMGRID_HAVE_MC
  43   mc_model_checker->handle_simcall(aid_, times_considered_, false);
  44   mc_model_checker->wait_for_requests();
  45 #endif
  46 }
  47
  48 Transition* deserialize_transition(aid_t issuer, int times_considered, std::stringstream& stream)
  49 {
  50 #if SIMGRID_HAVE_MC
  51   short type;
  52   xbt_assert(stream >> type);
  53   xbt_assert(type >= 0 && type <= static_cast<short>(Transition::Type::UNKNOWN), "Invalid transition type %d received",
  54              type);
  55
  56   auto simcall = static_cast<Transition::Type>(type);
  57
  58   switch (simcall) {
  59     case Transition::Type::COMM_RECV:
  60       return new CommRecvTransition(issuer, times_considered, stream);
  61     case Transition::Type::COMM_SEND:
  62       return new CommSendTransition(issuer, times_considered, stream);
  63     case Transition::Type::COMM_TEST:
  64       return new CommTestTransition(issuer, times_considered, stream);
  65     case Transition::Type::COMM_WAIT:
  66       return new CommWaitTransition(issuer, times_considered, stream);
  67
  68     case Transition::Type::TESTANY:
  69       return new TestAnyTransition(issuer, times_considered, stream);
  70     case Transition::Type::WAITANY:
  71       return new WaitAnyTransition(issuer, times_considered, stream);
  72
  73     case Transition::Type::RANDOM:
  74       return new RandomTransition(issuer, times_considered, stream);
  75
  76     case Transition::Type::UNKNOWN:
  77       return new Transition(Transition::Type::UNKNOWN, issuer, times_considered);
  78   }
  79   THROW_IMPOSSIBLE; // Some compilers don't detect that each branch of the above switch has a return
  80 #else
  81   xbt_die("Deserializing transitions is only interesting in MC mode.");
  82 #endif
  83 }
  84
  85 } // namespace mc
  86 } // namespace simgrid