1 /* Copyright (c) 2007-2022. 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_MODEL_CHECKER_HPP
7 #define SIMGRID_MC_MODEL_CHECKER_HPP
9 #include "src/mc/remote/CheckerSide.hpp"
10 #include "src/mc/remote/RemotePtr.hpp"
11 #include "src/mc/sosp/PageStore.hpp"
13 #include "xbt/string.hpp"
18 namespace simgrid::mc {
20 /** State of the model-checker (global variables for the model checker)
23 CheckerSide checker_side_;
24 /** String pool for host names */
25 std::set<xbt::string, std::less<>> hostnames_;
26 // This is the parent snapshot of the current state:
27 PageStore page_store_{500};
28 std::unique_ptr<RemoteProcess> remote_process_;
29 Exploration* exploration_ = nullptr;
31 unsigned long visited_states_ = 0;
33 // Expect MessageType::SIMCALL_TO_STRING or MessageType::SIMCALL_DOT_LABEL
34 std::string simcall_to_string(MessageType type, aid_t aid, int times_considered);
37 ModelChecker(ModelChecker const&) = delete;
38 ModelChecker& operator=(ModelChecker const&) = delete;
39 explicit ModelChecker(std::unique_ptr<RemoteProcess> remote_simulation, int sockfd);
41 RemoteProcess& get_remote_process() { return *remote_process_; }
42 Channel& channel() { return checker_side_.get_channel(); }
43 PageStore& page_store() { return page_store_; }
45 xbt::string const& get_host_name(const char* hostname)
47 return *this->hostnames_.insert(xbt::string(hostname)).first;
53 void wait_for_requests();
55 /** Let the application take a transition. A new Transition is created iff the last parameter is true */
56 Transition* handle_simcall(aid_t aid, int times_considered, bool new_transition);
58 /* Interactions with the simcall observer */
59 XBT_ATTRIB_NORETURN void exit(int status);
61 void finalize_app(bool terminate_asap = false);
63 Exploration* get_exploration() const { return exploration_; }
64 void set_exploration(Exploration* exploration) { exploration_ = exploration; }
66 unsigned long get_visited_states() const { return visited_states_; }
67 void inc_visited_states() { visited_states_++; }
71 bool handle_message(const char* buffer, ssize_t size);
72 void handle_waitpid();
75 } // namespace simgrid::mc