1 /* Copyright (c) 2016-2023. 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_REMOTE_APP_HPP
7 #define SIMGRID_MC_REMOTE_APP_HPP
9 #include "simgrid/forward.h"
10 #include "src/mc/api/ActorState.hpp"
11 #include "src/mc/remote/CheckerSide.hpp"
12 #include "src/mc/remote/RemotePtr.hpp"
16 namespace simgrid::mc {
18 /** High-level view of the verified application, from the model-checker POV
20 * This is expected to become the interface used by model-checking algorithms to control the execution of
21 * the application process during the exploration of the execution graph.
23 * One day, this will allow parallel exploration, ie, the handling of several application processes (each encapsulated
24 * in a separate CheckerSide objects) that explore several parts of the exploration graph.
26 class XBT_PUBLIC RemoteApp {
28 std::unique_ptr<CheckerSide> checker_side_;
29 std::unique_ptr<CheckerSide> application_factory_; // when no meminfo, create checker_side_ by cloning this one
30 int master_socket_ = -1;
32 const std::vector<char*> app_args_;
35 RemoteApp(RemoteApp const&) = delete;
36 RemoteApp& operator=(RemoteApp const&) = delete;
39 /** Create a new session by executing the provided code in a fork()
41 * This sets up the environment for the model-checked process
42 * (environment variables, sockets, etc.).
44 * The code is expected to `exec` the model-checked application.
46 explicit RemoteApp(const std::vector<char*>& args);
48 void restore_initial_state();
49 void wait_for_requests();
51 /** Ask to the application to check for a deadlock. If so, do an error message and throw a McError(DEADLOCK). */
52 void check_deadlock() const;
54 /** Ask the application to run post-mortem analysis, and maybe to stop ASAP */
55 void finalize_app(bool terminate_asap = false);
57 /** Retrieve the max PID of the running actors */
58 unsigned long get_maxpid() const;
60 /* Get the list of actors that are ready to run at that step. Usually shorter than maxpid */
61 void get_actors_status(std::map<aid_t, simgrid::mc::ActorState>& whereto) const;
63 /** Take a transition. A new Transition is created iff the last parameter is true */
64 Transition* handle_simcall(aid_t aid, int times_considered, bool new_transition);
66 } // namespace simgrid::mc