1 /* Copyright (c) 2007-2020. 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/sosp/PageStore.hpp"
16 #include <event2/event.h>
21 /** State of the model-checker (global variables for the model checker)
24 struct event_base* base_ = nullptr;
25 struct event* socket_event_ = nullptr;
26 struct event* signal_event_ = nullptr;
27 /** String pool for host names */
28 std::set<std::string> hostnames_;
29 // This is the parent snapshot of the current state:
30 PageStore page_store_{500};
31 std::unique_ptr<RemoteClient> process_;
32 Checker* checker_ = nullptr;
35 ModelChecker(ModelChecker const&) = delete;
36 ModelChecker& operator=(ModelChecker const&) = delete;
37 explicit ModelChecker(std::unique_ptr<RemoteClient> process);
40 RemoteClient& process() { return *process_; }
41 PageStore& page_store()
46 std::string const& get_host_name(std::string const& hostname)
48 return *this->hostnames_.insert(hostname).first;
53 void resume(simgrid::mc::RemoteClient& process);
55 void handle_events(int fd, short events);
56 void wait_for_requests();
57 void handle_simcall(Transition const& transition);
58 XBT_ATTRIB_NORETURN void exit(int status);
62 Checker* getChecker() const { return checker_; }
63 void setChecker(Checker* checker) { checker_ = checker; }
67 bool handle_message(const char* buffer, ssize_t size);
68 void handle_waitpid();
69 void on_signal(int signo);
72 unsigned long visited_states = 0;
73 unsigned long executed_transitions = 0;