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/TransitionActorJoin.hpp"
  14 #include "src/mc/transition/TransitionAny.hpp"
  15 #include "src/mc/transition/TransitionComm.hpp"
  16 #include "src/mc/transition/TransitionRandom.hpp"
  17 #include "src/mc/transition/TransitionSynchro.hpp"
  18 #endif
  19
  20 #include <sstream>
  21
  22 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_transition, mc, "Logging specific to MC transitions");
  23
  24 namespace simgrid::mc {
  25 unsigned long Transition::executed_transitions_ = 0;
  26 unsigned long Transition::replayed_transitions_ = 0;
  27
  28 // Do not move this to the header, to ensure that we have a vtable for Transition
  29 Transition::~Transition() = default;
  30
  31 std::string Transition::to_string(bool) const
  32 {
  33   return "";
  34 }
  35 std::string Transition::dot_string() const
  36 {
  37   static constexpr std::array<const char*, 13> colors{{"blue", "red", "green3", "goldenrod", "brown", "purple",
  38                                                        "magenta", "turquoise4", "gray25", "forestgreen", "hotpink",
  39                                                        "lightblue", "tan"}};
  40   const char* color = colors[(aid_ - 1) % colors.size()];
  41
  42   return xbt::string_printf("label = \"[(%ld)] %s\", color = %s, fontcolor = %s", aid_, Transition::to_c_str(type_),
  43                             color, color);
  44 }
  45 void Transition::replay() const
  46 {
  47   replayed_transitions_++;
  48
  49 #if SIMGRID_HAVE_MC
  50   mc_model_checker->handle_simcall(aid_, times_considered_, false);
  51   mc_model_checker->wait_for_requests();
  52 #endif
  53 }
  54
  55 Transition* deserialize_transition(aid_t issuer, int times_considered, std::stringstream& stream)
  56 {
  57 #if SIMGRID_HAVE_MC
  58   short type;
  59   xbt_assert(stream >> type);
  60
  61   switch (auto simcall = static_cast<Transition::Type>(type)) {
  62     case Transition::Type::BARRIER_ASYNC_LOCK:
  63     case Transition::Type::BARRIER_WAIT:
  64       return new BarrierTransition(issuer, times_considered, simcall, stream);
  65
  66     case Transition::Type::COMM_ASYNC_RECV:
  67       return new CommRecvTransition(issuer, times_considered, stream);
  68     case Transition::Type::COMM_ASYNC_SEND:
  69       return new CommSendTransition(issuer, times_considered, stream);
  70     case Transition::Type::COMM_TEST:
  71       return new CommTestTransition(issuer, times_considered, stream);
  72     case Transition::Type::COMM_WAIT:
  73       return new CommWaitTransition(issuer, times_considered, stream);
  74
  75     case Transition::Type::TESTANY:
  76       return new TestAnyTransition(issuer, times_considered, stream);
  77     case Transition::Type::WAITANY:
  78       return new WaitAnyTransition(issuer, times_considered, stream);
  79
  80     case Transition::Type::RANDOM:
  81       return new RandomTransition(issuer, times_considered, stream);
  82
  83     case Transition::Type::MUTEX_TRYLOCK:
  84     case Transition::Type::MUTEX_ASYNC_LOCK:
  85     case Transition::Type::MUTEX_TEST:
  86     case Transition::Type::MUTEX_WAIT:
  87     case Transition::Type::MUTEX_UNLOCK:
  88       return new MutexTransition(issuer, times_considered, simcall, stream);
  89
  90     case Transition::Type::SEM_ASYNC_LOCK:
  91     case Transition::Type::SEM_UNLOCK:
  92     case Transition::Type::SEM_WAIT:
  93       return new SemaphoreTransition(issuer, times_considered, simcall, stream);
  94
  95     case Transition::Type::ACTOR_JOIN:
  96       return new ActorJoinTransition(issuer, times_considered, stream);
  97
  98     case Transition::Type::UNKNOWN:
  99       return new Transition(Transition::Type::UNKNOWN, issuer, times_considered);
 100
 101     default:
 102       break;
 103   }
 104   xbt_die("Invalid transition type %d received. Did you implement a new observer in the app without implementing the "
 105           "corresponding transition in the checker?",
 106           type);
 107 #else
 108   xbt_die("Deserializing transitions is only interesting in MC mode.");
 109 #endif
 110 }
 111
 112 } // namespace simgrid::mc