1 /* Copyright (c) 2007-2015. The SimGrid Team.
2 * All rights reserved. */
4 /* This program is free software; you can redistribute it and/or modify it
5 * under the terms of the license (GNU LGPL) which comes with this package. */
7 #ifndef SIMGRID_MC_MODEL_CHECKER_HPP
8 #define SIMGRID_MC_MODEL_CHECKER_HPP
10 #include <sys/types.h>
16 #include <event2/event.h>
19 #include <sys/types.h>
21 #include "src/mc/PageStore.hpp"
22 #include "src/mc/Transition.hpp"
23 #include "src/mc/mc_forward.hpp"
24 #include "src/mc/remote/RemoteClient.hpp"
25 #include "src/mc/remote/mc_protocol.h"
30 /** State of the model-checker (global variables for the model checker)
33 struct event_base *base_;
34 struct event* socket_event_;
35 struct event* signal_event_;
36 /** String pool for host names */
37 // TODO, use std::set with heterogeneous comparison lookup (C++14)?
38 std::set<std::string> hostnames_;
39 // This is the parent snapshot of the current state:
40 PageStore page_store_;
41 std::unique_ptr<RemoteClient> process_;
42 Checker* checker_ = nullptr;
44 std::shared_ptr<simgrid::mc::Snapshot> parent_snapshot_;
47 ModelChecker(ModelChecker const&) = delete;
48 ModelChecker& operator=(ModelChecker const&) = delete;
49 explicit ModelChecker(std::unique_ptr<RemoteClient> process);
52 RemoteClient& process() { return *process_; }
53 PageStore& page_store()
58 std::string const& get_host_name(const char* hostname)
60 return *this->hostnames_.insert(hostname).first;
62 std::string const& get_host_name(std::string const& hostname)
64 return *this->hostnames_.insert(hostname).first;
69 void resume(simgrid::mc::RemoteClient& process);
71 void handle_events(int fd, short events);
72 void wait_for_requests();
73 void handle_simcall(Transition const& transition);
74 void exit(int status);
78 Checker* getChecker() const { return checker_; }
79 void setChecker(Checker* checker) { checker_ = checker; }
83 bool handle_message(char* buffer, ssize_t size);
84 void handle_waitpid();
85 void on_signal(int signo);
88 unsigned long visited_states = 0;
89 unsigned long executed_transitions = 0;