1 /* Copyright (c) 2007-2023. The SimGrid Team. All rights reserved. */
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. */
6 #ifndef SIMGRID_MC_STRATEGY_HPP
7 #define SIMGRID_MC_STRATEGY_HPP
9 #include "simgrid/forward.h"
10 #include "src/mc/api/RemoteApp.hpp"
11 #include "src/mc/mc_config.hpp"
12 #include "xbt/asserts.h"
16 namespace simgrid::mc {
20 /** State's exploration status by actor. All actors should be present, eventually disabled for now. */
21 std::map<aid_t, ActorState> actors_to_run_;
24 virtual void copy_from(const Strategy*) = 0;
26 virtual ~Strategy() = default;
28 virtual std::pair<aid_t, int> best_transition(bool must_be_todo) const = 0;
30 std::pair<aid_t, int> next_transition() { return best_transition(true); }
31 virtual void execute_next(aid_t aid, RemoteApp& app) = 0;
33 // Mark the first enabled and not yet done transition as todo
34 // If there's already a transition marked as todo, does nothing
35 void consider_best() {
36 for (auto& [_, actor] :actors_to_run_)
39 aid_t best_aid = best_transition(false).first;
41 actors_to_run_.at(best_aid).mark_todo();
44 // Mark aid as todo. If it makes no sense, ie. if it is already done or not enabled,
46 void consider_one(aid_t aid)
48 xbt_assert(actors_to_run_.at(aid).is_enabled() and not actors_to_run_.at(aid).is_done(),
49 "Tried to mark as TODO actor %ld but it is either not enabled or already done", aid);
50 actors_to_run_.at(aid).mark_todo();
52 // Mark as todo all actors enabled that are not done yet and return the number
54 unsigned long consider_all()
56 unsigned long count = 0;
57 for (auto& [_, actor] : actors_to_run_)
58 if (actor.is_enabled() and not actor.is_done()) {
68 } // namespace simgrid::mc