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"
17 namespace simgrid::mc {
19 /** State of the model-checker (global variables for the model checker)
22 CheckerSide checker_side_;
23 /** String pool for host names */
24 std::set<std::string, std::less<>> hostnames_;
25 // This is the parent snapshot of the current state:
26 PageStore page_store_{500};
27 std::unique_ptr<RemoteProcess> remote_process_;
28 Exploration* exploration_ = nullptr;
30 FILE* dot_output_ = nullptr;
32 unsigned long visited_states_ = 0;
35 ModelChecker(ModelChecker const&) = delete;
36 ModelChecker& operator=(ModelChecker const&) = delete;
37 explicit ModelChecker(std::unique_ptr<RemoteProcess> remote_simulation, int sockfd);
39 RemoteProcess& get_remote_process() { return *remote_process_; }
40 Channel& channel() { return checker_side_.get_channel(); }
41 PageStore& page_store() { return page_store_; }
43 std::string const& get_host_name(const char* hostname)
45 return *this->hostnames_.insert(std::string(hostname)).first;
51 void wait_for_requests();
53 /** Let the application take a transition. A new Transition is created iff the last parameter is true */
54 Transition* handle_simcall(aid_t aid, int times_considered, bool new_transition);
56 /* Interactions with the simcall observer */
57 XBT_ATTRIB_NORETURN void exit(int status);
59 void finalize_app(bool terminate_asap = false);
61 Exploration* get_exploration() const { return exploration_; }
62 void set_exploration(Exploration* exploration) { exploration_ = exploration; }
64 unsigned long get_visited_states() const { return visited_states_; }
65 void inc_visited_states() { visited_states_++; }
67 void dot_output(const char* fmt, ...) XBT_ATTRIB_PRINTF(2, 3);
68 void dot_output_flush()
70 if (dot_output_ != nullptr)
73 void dot_output_close()
75 if (dot_output_ != nullptr)
81 bool handle_message(const char* buffer, ssize_t size);
82 void handle_waitpid();
85 } // namespace simgrid::mc