-/* Copyright (c) 2007-2014. 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 MC_MODEL_CHECKER_H
-#define MC_MODEL_CHECKER_H
-#include <sys/types.h>
+#ifndef SIMGRID_MC_MODEL_CHECKER_HPP
+#define SIMGRID_MC_MODEL_CHECKER_HPP
-#include <simgrid_config.h>
-#include <xbt/dynar.h>
+#include "src/mc/remote/CheckerSide.hpp"
+#include "src/mc/remote/RemotePtr.hpp"
+#include "src/mc/sosp/PageStore.hpp"
+#include "xbt/base.h"
+#include "xbt/string.hpp"
-#include "mc_forward.h"
-#include "mc_process.h"
-#include "mc_page_store.h"
-#include "mc_protocol.h"
+#include <memory>
+#include <set>
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 {
- // This is the parent snapshot of the current state:
- mc_pages_store_t page_store_;
- int fd_clear_refs_;
- xbt_dynar_t record_;
- s_mc_process_t process_;
+ CheckerSide checker_side_;
/** String pool for host names */
- // TODO, use std::unordered_set with heterogeneous comparison lookup (C++14)
- xbt_dict_t /* <hostname, NULL> */ hostnames_;
+ std::set<xbt::string, std::less<>> hostnames_;
+ // This is the parent snapshot of the current state:
+ PageStore page_store_{500};
+ std::unique_ptr<RemoteProcess> remote_process_;
+ Checker* checker_ = nullptr;
+
+ // Expect MessageType::SIMCALL_TO_STRING or MessageType::SIMCALL_DOT_LABEL
+ std::string simcall_to_string(MessageType type, aid_t aid, int times_considered);
+
public:
ModelChecker(ModelChecker const&) = delete;
ModelChecker& operator=(ModelChecker const&) = delete;
- ModelChecker(pid_t pid, int socket);
- ~ModelChecker();
- s_mc_process_t& process()
- {
- return process_;
- }
- s_mc_pages_store_t& page_store()
+ explicit ModelChecker(std::unique_ptr<RemoteProcess> remote_simulation, int sockfd);
+
+ RemoteProcess& get_remote_process() { return *remote_process_; }
+ Channel& channel() { return checker_side_.get_channel(); }
+ PageStore& page_store() { return page_store_; }
+
+ xbt::string const& get_host_name(const char* hostname)
{
- return *page_store_;
+ return *this->hostnames_.insert(xbt::string(hostname)).first;
}
- const char* get_host_name(const char* name);
+
+ void start();
+ void shutdown();
+ void resume();
+ void wait_for_requests();
+
+ /** 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 */
+ bool simcall_is_visible(aid_t aid);
+
+ XBT_ATTRIB_NORETURN void exit(int status);
+
+ bool checkDeadlock();
+ void finalize_app(bool terminate_asap = false);
+
+ Checker* getChecker() const { return checker_; }
+ void setChecker(Checker* checker) { checker_ = checker; }
+
+private:
+ void setup_ignore();
+ bool handle_message(const char* buffer, ssize_t size);
+ void handle_waitpid();
+
+public:
+ unsigned long visited_states = 0;
};
}
