src/mc/transition/Transition.cpp

   1 /* Copyright (c) 2015-2023. 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 "src/kernel/actor/Simcall.hpp"
   8 #include "xbt/asserts.h"
   9 #include "xbt/string.hpp"
  10 #include <simgrid/config.h>
  11
  12 #if SIMGRID_HAVE_MC
  13 #include "src/mc/ModelChecker.hpp"
  14 #include "src/mc/transition/TransitionActorJoin.hpp"
  15 #include "src/mc/transition/TransitionAny.hpp"
  16 #include "src/mc/transition/TransitionComm.hpp"
  17 #include "src/mc/transition/TransitionObjectAccess.hpp"
  18 #include "src/mc/transition/TransitionRandom.hpp"
  19 #include "src/mc/transition/TransitionSynchro.hpp"
  20 #endif
  21
  22 #include <sstream>
  23
  24 XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_transition, mc, "Logging specific to MC transitions");
  25
  26 namespace simgrid::mc {
  27 unsigned long Transition::executed_transitions_ = 0;
  28 unsigned long Transition::replayed_transitions_ = 0;
  29
  30 // Do not move this to the header, to ensure that we have a vtable for Transition
  31 Transition::~Transition() = default;
  32
  33 std::string Transition::to_string(bool) const
  34 {
  35   return "";
  36 }
  37 std::string Transition::dot_string() const
  38 {
  39   static constexpr std::array<const char*, 13> colors{{"blue", "red", "green3", "goldenrod", "brown", "purple",
  40                                                        "magenta", "turquoise4", "gray25", "forestgreen", "hotpink",
  41                                                        "lightblue", "tan"}};
  42   const char* color = colors[(aid_ - 1) % colors.size()];
  43
  44   return xbt::string_printf("label = \"[(%ld)] %s\", color = %s, fontcolor = %s", aid_, Transition::to_c_str(type_),
  45                             color, color);
  46 }
  47 void Transition::replay() const
  48 {
  49   replayed_transitions_++;
  50
  51 #if SIMGRID_HAVE_MC
  52   mc_model_checker->handle_simcall(aid_, times_considered_, false);
  53   mc_model_checker->wait_for_requests();
  54 #endif
  55 }
  56
  57 Transition* deserialize_transition(aid_t issuer, int times_considered, std::stringstream& stream)
  58 {
  59 #if SIMGRID_HAVE_MC
  60   short type;
  61   xbt_assert(stream >> type);
  62
  63   switch (auto simcall = static_cast<Transition::Type>(type)) {
  64     case Transition::Type::BARRIER_ASYNC_LOCK:
  65     case Transition::Type::BARRIER_WAIT:
  66       return new BarrierTransition(issuer, times_considered, simcall, stream);
  67
  68     case Transition::Type::COMM_ASYNC_RECV:
  69       return new CommRecvTransition(issuer, times_considered, stream);
  70     case Transition::Type::COMM_ASYNC_SEND:
  71       return new CommSendTransition(issuer, times_considered, stream);
  72     case Transition::Type::COMM_TEST:
  73       return new CommTestTransition(issuer, times_considered, stream);
  74     case Transition::Type::COMM_WAIT:
  75       return new CommWaitTransition(issuer, times_considered, stream);
  76
  77     case Transition::Type::TESTANY:
  78       return new TestAnyTransition(issuer, times_considered, stream);
  79     case Transition::Type::WAITANY:
  80       return new WaitAnyTransition(issuer, times_considered, stream);
  81
  82     case Transition::Type::RANDOM:
  83       return new RandomTransition(issuer, times_considered, stream);
  84
  85     case Transition::Type::MUTEX_TRYLOCK:
  86     case Transition::Type::MUTEX_ASYNC_LOCK:
  87     case Transition::Type::MUTEX_TEST:
  88     case Transition::Type::MUTEX_WAIT:
  89     case Transition::Type::MUTEX_UNLOCK:
  90       return new MutexTransition(issuer, times_considered, simcall, stream);
  91
  92     case Transition::Type::SEM_ASYNC_LOCK:
  93     case Transition::Type::SEM_UNLOCK:
  94     case Transition::Type::SEM_WAIT:
  95       return new SemaphoreTransition(issuer, times_considered, simcall, stream);
  96
  97     case Transition::Type::ACTOR_JOIN:
  98       return new ActorJoinTransition(issuer, times_considered, stream);
  99
 100     case Transition::Type::OBJECT_ACCESS:
 101       return new ObjectAccessTransition(issuer, times_considered, stream);
 102
 103     case Transition::Type::UNKNOWN:
 104       return new Transition(Transition::Type::UNKNOWN, issuer, times_considered);
 105
 106     default:
 107       break;
 108   }
 109   xbt_die("Invalid transition type %d received. Did you implement a new observer in the app without implementing the "
 110           "corresponding transition in the checker?",
 111           type);
 112 #else
 113   xbt_die("Deserializing transitions is only interesting in MC mode.");
 114 #endif
 115 }
 116
 117 } // namespace simgrid::mc