--- /dev/null
+/* Copyright (c) 2015-2023. 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/transition/TransitionActor.hpp"
+#include "simgrid/config.h"
+#include "xbt/asserts.h"
+#include "xbt/string.hpp"
+
+#include <sstream>
+
+XBT_LOG_NEW_DEFAULT_SUBCATEGORY(mc_trans_actorlifecycle, mc_transition,
+ "Logging specific to MC transitions about actors' lifecycle: joining, ending");
+
+namespace simgrid::mc {
+
+ActorJoinTransition::ActorJoinTransition(aid_t issuer, int times_considered, std::stringstream& stream)
+ : Transition(Type::ACTOR_JOIN, issuer, times_considered)
+{
+ xbt_assert(stream >> target_ >> timeout_);
+ XBT_DEBUG("ActorJoinTransition target:%ld, %s ", target_, (timeout_ ? "timeout" : "no-timeout"));
+}
+std::string ActorJoinTransition::to_string(bool verbose) const
+{
+ return xbt::string_printf("ActorJoin(target %ld, %s)", target_, (timeout_ ? "timeout" : "no timeout"));
+}
+bool ActorJoinTransition::depends(const Transition* other) const
+{
+ // Joining is dependent with any transition whose
+ // actor is that of the `other` action. , Join i
+ if (other->aid_ == target_) {
+ return true;
+ }
+
+ // Actions executed by the same actor are always dependent
+ if (other->aid_ == aid_)
+ return true;
+
+ // Otherwise, joining is indep with any other transitions:
+ // - It is only enabled once the target ends, and after this point it's enabled no matter what
+ // - Other joins don't affect it, and it does not impact on the enabledness of any other transition
+ return false;
+}
+
+ActorSleepTransition::ActorSleepTransition(aid_t issuer, int times_considered, std::stringstream& stream)
+ : Transition(Type::ACTOR_SLEEP, issuer, times_considered)
+{
+ XBT_DEBUG("ActorSleepTransition()");
+}
+std::string ActorSleepTransition::to_string(bool verbose) const
+{
+ return xbt::string_printf("ActorSleep()");
+}
+bool ActorSleepTransition::depends(const Transition* other) const
+{
+ // Sleeping is indep with any other transitions: always enabled, not impacted by any transition
+ return false;
+}
+
+} // namespace simgrid::mc
