-/* Copyright (c) 2007-2017. The SimGrid Team.
- * All rights reserved. */
+/* Copyright (c) 2007-2022. The SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
#ifndef SIMGRID_MC_MODEL_CHECKER_HPP
#define SIMGRID_MC_MODEL_CHECKER_HPP
-#include <sys/types.h>
+#include "src/mc/remote/CheckerSide.hpp"
+#include "src/mc/remote/RemotePtr.hpp"
+#include "src/mc/sosp/PageStore.hpp"
+#include "xbt/base.h"
#include <memory>
#include <set>
-#include <string>
-
-#include <event2/event.h>
-
-#include "xbt/base.h"
-#include <sys/types.h>
-#include "src/mc/PageStore.hpp"
-#include "src/mc/Transition.hpp"
-#include "src/mc/mc_forward.hpp"
-#include "src/mc/remote/RemoteClient.hpp"
-#include "src/mc/remote/mc_protocol.h"
-
-namespace simgrid {
-namespace mc {
+namespace simgrid::mc {
/** State of the model-checker (global variables for the model checker)
*/
class ModelChecker {
- struct event_base *base_;
- struct event* socket_event_;
- struct event* signal_event_;
+ CheckerSide checker_side_;
/** String pool for host names */
- // TODO, use std::set with heterogeneous comparison lookup (C++14)?
- std::set<std::string> hostnames_;
+ std::set<std::string, std::less<>> hostnames_;
// This is the parent snapshot of the current state:
- PageStore page_store_;
- std::unique_ptr<RemoteClient> process_;
- Checker* checker_ = nullptr;
-public:
- std::shared_ptr<simgrid::mc::Snapshot> parent_snapshot_;
+ PageStore page_store_{500};
+ std::unique_ptr<RemoteProcess> remote_process_;
+ Exploration* exploration_ = nullptr;
+
+ FILE* dot_output_ = nullptr;
+ unsigned long visited_states_ = 0;
+
+public:
ModelChecker(ModelChecker const&) = delete;
ModelChecker& operator=(ModelChecker const&) = delete;
- explicit ModelChecker(std::unique_ptr<RemoteClient> process);
- ~ModelChecker();
+ explicit ModelChecker(std::unique_ptr<RemoteProcess> remote_simulation, int sockfd);
- RemoteClient& process() { return *process_; }
- PageStore& page_store()
- {
- return page_store_;
- }
+ RemoteProcess& get_remote_process() { return *remote_process_; }
+ Channel& channel() { return checker_side_.get_channel(); }
+ PageStore& page_store() { return page_store_; }
- std::string const& get_host_name(const char* hostname)
- {
- return *this->hostnames_.insert(hostname).first;
- }
- std::string const& get_host_name(std::string const& hostname)
- {
- return *this->hostnames_.insert(hostname).first;
- }
+ std::string const& get_host_name(const char* hostname) { return *this->hostnames_.insert(hostname).first; }
void start();
void shutdown();
- void resume(simgrid::mc::RemoteClient& process);
- void loop();
- void handle_events(int fd, short events);
+ void resume();
void wait_for_requests();
- void handle_simcall(Transition const& transition);
- void exit(int status);
- bool checkDeadlock();
+ /** Let the application take a transition. A new Transition is created iff the last parameter is true */
+ Transition* handle_simcall(aid_t aid, int times_considered, bool new_transition);
+
+ /* Interactions with the simcall observer */
+ XBT_ATTRIB_NORETURN void exit(int status);
+
+ void finalize_app(bool terminate_asap = false);
+
+ Exploration* get_exploration() const { return exploration_; }
+ void set_exploration(Exploration* exploration) { exploration_ = exploration; }
+
+ unsigned long get_visited_states() const { return visited_states_; }
+ void inc_visited_states() { visited_states_++; }
- Checker* getChecker() const { return checker_; }
- void setChecker(Checker* checker) { checker_ = checker; }
+ void dot_output(const char* fmt, ...) XBT_ATTRIB_PRINTF(2, 3);
+ void dot_output_flush()
+ {
+ if (dot_output_ != nullptr)
+ fflush(dot_output_);
+ }
+ void dot_output_close()
+ {
+ if (dot_output_ != nullptr)
+ fclose(dot_output_);
+ }
private:
void setup_ignore();
- bool handle_message(char* buffer, ssize_t size);
+ bool handle_message(const char* buffer, ssize_t size);
void handle_waitpid();
- void on_signal(int signo);
-
-public:
- unsigned long visited_states = 0;
- unsigned long executed_transitions = 0;
};
-}
-}
+} // namespace simgrid::mc
#endif
