-/* Copyright (c) 2007-2015. The SimGrid Team.
- * All rights reserved. */
+/* Copyright (c) 2007-2019. 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 <simgrid_config.h>
-#include <xbt/dynar.h>
+#include <memory>
+#include <set>
+#include <string>
+
+#include <event2/event.h>
-#include "mc_forward.h"
-#include "mc_process.h"
-#include "PageStore.hpp"
-#include "mc_protocol.h"
+#include <sys/types.h>
+
+#include "src/mc/mc_forward.hpp"
+#include "src/mc/remote/mc_protocol.h"
+#include "src/mc/sosp/PageStore.hpp"
namespace simgrid {
namespace mc {
/** State of the model-checker (global variables for the model checker)
- *
- * Each part of the state of the model chercker represented as a global
- * variable prevents some sharing between snapshots and must be ignored.
- * By moving as much state as possible in this structure allocated
- * on the model-checker heap, we avoid those issues.
*/
class ModelChecker {
+ struct event_base *base_;
+ struct event* socket_event_;
+ struct event* signal_event_;
/** String pool for host names */
- // TODO, use std::unordered_set with heterogeneous comparison lookup (C++14)
- xbt_dict_t /* <hostname, NULL> */ hostnames_;
+ // TODO, use std::set with heterogeneous comparison lookup (C++14)?
+ std::set<std::string> hostnames_;
// This is the parent snapshot of the current state:
- s_mc_pages_store_t page_store_;
- s_mc_process_t process_;
+ PageStore page_store_;
+ std::unique_ptr<RemoteClient> process_;
+ Checker* checker_ = nullptr;
public:
+ std::shared_ptr<simgrid::mc::Snapshot> parent_snapshot_;
+
ModelChecker(ModelChecker const&) = delete;
ModelChecker& operator=(ModelChecker const&) = delete;
- ModelChecker(pid_t pid, int socket);
+ explicit ModelChecker(std::unique_ptr<RemoteClient> process);
~ModelChecker();
- s_mc_process_t& process()
- {
- return process_;
- }
+
+ RemoteClient& process() { return *process_; }
PageStore& page_store()
{
return page_store_;
}
- const char* get_host_name(const char* name);
+
+ 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;
+ }
+
+ void start();
+ void shutdown();
+ void resume(simgrid::mc::RemoteClient& process);
+ void loop();
+ void handle_events(int fd, short events);
+ void wait_for_requests();
+ void handle_simcall(Transition const& transition);
+ XBT_ATTRIB_NORETURN void exit(int status);
+
+ bool checkDeadlock();
+
+ Checker* getChecker() const { return checker_; }
+ void setChecker(Checker* checker) { checker_ = checker; }
+
+private:
+ void setup_ignore();
+ bool handle_message(char* buffer, ssize_t size);
+ void handle_waitpid();
+ void on_signal(int signo);
+
+public:
+ unsigned long visited_states = 0;
+ unsigned long executed_transitions = 0;
};
}
