--- /dev/null
+/* Copyright (c) 2007-2023. 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 "xbt/asserts.h"
+
+#ifndef SIMGRID_MC_STRATEGY_HPP
+#define SIMGRID_MC_STRATEGY_HPP
+
+namespace simgrid::mc {
+
+class Strategy {
+protected:
+ /** State's exploration status by actor. Not all the actors are there, only the ones that are ready-to-run in this
+ * state */
+ std::map<aid_t, ActorState> actors_to_run_;
+
+public:
+ virtual ~Strategy() = default;
+ virtual std::pair<aid_t, double> next_transition() const = 0;
+ virtual void execute_next(aid_t aid, RemoteApp& app) = 0;
+ virtual void consider_best() = 0;
+
+ // Mark the first enabled and not yet done transition as todo
+ // If there's already a transition marked as todo, does nothing
+ void consider_one(aid_t aid)
+ {
+ xbt_assert(actors_to_run_.at(aid).is_enabled() and not actors_to_run_.at(aid).is_done(),
+ "Tried to mark as TODO actor %ld but it is either not enabled or already done", aid);
+ actors_to_run_.at(aid).mark_todo();
+ }
+ // Matk as todo all actors enabled that are not done yet
+ unsigned long consider_all()
+ {
+ unsigned long count = 0;
+ for (auto& [_, actor] : actors_to_run_)
+ if (actor.is_enabled() and not actor.is_done()) {
+ actor.mark_todo();
+ count++;
+ }
+ return count;
+ }
+
+ friend class State;
+};
+
+} // namespace simgrid::mc
+
+#endif
