-/* Copyright (c) 2007-2015. The SimGrid Team.
- * All rights reserved. */
+/* Copyright (c) 2007-2023. 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 <simgrid_config.h>
-#include <xbt/dict.h>
-#include <xbt/base.h>
+#include <memory>
-#include "mc_forward.hpp"
-#include "mc/Process.hpp"
-#include "mc/PageStore.hpp"
-#include "mc_protocol.h"
-
-namespace simgrid {
-namespace mc {
+namespace simgrid::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 {
- /** String pool for host names */
- // TODO, use std::unordered_set with heterogeneous comparison lookup (C++14)
- xbt_dict_t /* <hostname, NULL> */ hostnames_;
+ CheckerSide checker_side_;
// This is the parent snapshot of the current state:
- PageStore page_store_;
- Process process_;
-public:
- mc_snapshot_t 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;
- ModelChecker(pid_t pid, int socket);
- ~ModelChecker();
- Process& process()
+ 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_; }
+
+ 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 */
+ 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_++; }
+
+ void dot_output(const char* fmt, ...) XBT_ATTRIB_PRINTF(2, 3);
+ void dot_output_flush()
{
- return process_;
+ if (dot_output_ != nullptr)
+ fflush(dot_output_);
}
- PageStore& page_store()
+ void dot_output_close()
{
- return page_store_;
+ if (dot_output_ != nullptr)
+ fclose(dot_output_);
}
- const char* get_host_name(const char* name);
- bool is_important_snapshot(Snapshot const& snapshot) const
- {
- return &snapshot == mc_model_checker->parent_snapshot_;
- }
+private:
+ void setup_ignore();
+ bool handle_message(const char* buffer, ssize_t size);
+ void handle_waitpid();
};
-}
-}
+} // namespace simgrid::mc
#endif