X-Git-Url: http://info.iut-bm.univ-fcomte.fr/pub/gitweb/simgrid.git/blobdiff_plain/48296e83ce3ba1fa3658a3a74d10a536e33b3849..c312320c2e43da49b536c51a9d19b6ad6d66e489:/src/mc/mc_client_api.cpp

diff --git a/src/mc/mc_client_api.cpp b/src/mc/mc_client_api.cpp
index e64019f7c1..b0bed226ee 100644
--- a/src/mc/mc_client_api.cpp
+++ b/src/mc/mc_client_api.cpp
@@ -1,68 +1,95 @@
-/* Copyright (c) 2008-2022. The SimGrid Team.
- * All rights reserved.                                                     */
+/* Copyright (c) 2008-2023. The SimGrid Team. All rights reserved.          */
 
 /* This program is free software; you can redistribute it and/or modify it
  * under the terms of the license (GNU LGPL) which comes with this package. */
 
-#include "src/mc/ModelChecker.hpp"
+#include "simgrid/simix.hpp"
+#include "src/kernel/actor/ActorImpl.hpp"
+#include "src/mc/mc_config.hpp"
 #include "src/mc/mc_private.hpp"
 #include "src/mc/mc_record.hpp"
 #include "src/mc/mc_replay.hpp"
 #include "src/mc/remote/AppSide.hpp"
 #include "xbt/asserts.h"
+#include "xbt/random.hpp"
 
-/** @file mc_client_api.cpp
- *
- *  This is the implementation of the API used by the user simulated program to
- *  communicate with the MC (declared in modelchecker.h).
- */
+using namespace simgrid::mc;
 
-// MC_random() is in mc_base.cpp
+/* Implementation of the user API from the App to the Checker (see modelchecker.h)  */
+
+int MC_random(int min, int max)
+{
+  xbt_assert(get_model_checking_mode() != ModelCheckingMode::CHECKER_SIDE,
+             "This should be called from the client side");
+
+  if (not MC_is_active() && not MC_record_replay_is_active()) { // no need to do a simcall in this case
+    static simgrid::xbt::random::XbtRandom prng;
+    return prng.uniform_int(min, max);
+  }
+  simgrid::kernel::actor::RandomSimcall observer{simgrid::kernel::actor::ActorImpl::self(), min, max};
+  return simgrid::kernel::actor::simcall_answered([&observer] { return observer.get_value(); }, &observer);
+}
 
 void MC_assert(int prop)
 {
-  xbt_assert(mc_model_checker == nullptr);
+  // Cannot used xbt_assert here, or it would be an infinite recursion.
+  xbt_assert(get_model_checking_mode() != ModelCheckingMode::CHECKER_SIDE,
+             "This should be called from the client side");
+#if SIMGRID_HAVE_MC
   if (not prop) {
     if (MC_is_active())
-      simgrid::mc::AppSide::get()->report_assertion_failure();
+      AppSide::get()->report_assertion_failure();
     if (MC_record_replay_is_active())
       xbt_die("MC assertion failed");
   }
+#else
+  if (not prop)
+    xbt_die("Safety property violation detected without the model-checker");
+#endif
 }
 
-void MC_automaton_new_propositional_symbol(const char* /*id*/, int (*/*fct*/)())
+int MC_is_active()
 {
-  xbt_assert(mc_model_checker == nullptr);
-  if (not MC_is_active())
-    return;
-  xbt_die("Support for client-side function proposition is not implemented: "
-    "use MC_automaton_new_propositional_symbol_pointer instead.");
+  return get_model_checking_mode() == ModelCheckingMode::APP_SIDE ||
+         get_model_checking_mode() == ModelCheckingMode::CHECKER_SIDE;
 }
 
 void MC_automaton_new_propositional_symbol_pointer(const char *name, int* value)
 {
-  xbt_assert(mc_model_checker == nullptr);
-  if (not MC_is_active())
-    return;
-  simgrid::mc::AppSide::get()->declare_symbol(name, value);
+#if SIMGRID_HAVE_STATEFUL_MC
+  xbt_assert(get_model_checking_mode() != ModelCheckingMode::CHECKER_SIDE,
+             "This should be called from the client side");
+  if (MC_is_active())
+    AppSide::get()->declare_symbol(name, value);
+#endif
 }
 
 void MC_ignore(void* addr, size_t size)
 {
-  xbt_assert(mc_model_checker == nullptr);
-  if (not MC_is_active())
-    return;
-  simgrid::mc::AppSide::get()->ignore_memory(addr, size);
+#if SIMGRID_HAVE_STATEFUL_MC
+  xbt_assert(get_model_checking_mode() != ModelCheckingMode::CHECKER_SIDE,
+             "This should be called from the client side");
+  if (MC_is_active())
+    AppSide::get()->ignore_memory(addr, size);
+#endif
 }
 
 void MC_ignore_heap(void *address, size_t size)
 {
-  xbt_assert(mc_model_checker == nullptr);
-  simgrid::mc::AppSide::get()->ignore_heap(address, size);
+#if SIMGRID_HAVE_STATEFUL_MC
+  xbt_assert(get_model_checking_mode() != ModelCheckingMode::CHECKER_SIDE,
+             "This should be called from the client side");
+  if (MC_is_active())
+    AppSide::get()->ignore_heap(address, size);
+#endif
 }
 
 void MC_unignore_heap(void* address, size_t size)
 {
-  xbt_assert(mc_model_checker == nullptr);
-  simgrid::mc::AppSide::get()->unignore_heap(address, size);
+#if SIMGRID_HAVE_STATEFUL_MC
+  xbt_assert(get_model_checking_mode() != ModelCheckingMode::CHECKER_SIDE,
+             "This should be called from the client side");
+  if (MC_is_active())
+    AppSide::get()->unignore_heap(address, size);
+#endif
 }