1 /* Copyright (c) 2007-2021. 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/sosp/PageStore.hpp"
12 #include "xbt/string.hpp"
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 Checker* checker_ = nullptr;
31 // Expect MessageType::SIMCALL_TO_STRING or MessageType::SIMCALL_DOT_LABEL
32 std::string simcall_to_string(MessageType type, aid_t aid, int times_considered);
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 xbt::string const& get_host_name(const char* hostname)
45 return *this->hostnames_.insert(xbt::string(hostname)).first;
51 void wait_for_requests();
52 void handle_simcall(Transition const& transition);
54 /* Interactions with the simcall observer */
55 bool simcall_is_visible(aid_t aid);
56 std::string simcall_to_string(aid_t aid, int times_considered);
57 std::string simcall_dot_label(aid_t aid, int times_considered);
59 XBT_ATTRIB_NORETURN void exit(int status);
62 void finalize_app(bool terminate_asap = false);
64 Checker* getChecker() const { return checker_; }
65 void setChecker(Checker* checker) { checker_ = checker; }
69 bool handle_message(const char* buffer, ssize_t size);
70 void handle_waitpid();
73 unsigned long visited_states = 0;
74 unsigned long executed_transitions = 0;