#include <sys/types.h>
+#include <poll.h>
+#include <memory>
+
#include <simgrid_config.h>
#include <xbt/dict.h>
#include <xbt/base.h>
+#include <sys/types.h>
-#include "mc_forward.hpp"
-#include "mc_process.h"
-#include "PageStore.hpp"
-#include "mc_protocol.h"
+#include "src/mc/mc_forward.hpp"
+#include "src/mc/Process.hpp"
+#include "src/mc/PageStore.hpp"
+#include "src/mc/mc_protocol.h"
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 pollfd fds_[2];
/** String pool for host names */
// TODO, use std::unordered_set with heterogeneous comparison lookup (C++14)
xbt_dict_t /* <hostname, NULL> */ hostnames_;
// This is the parent snapshot of the current state:
PageStore page_store_;
- Process process_;
+ std::unique_ptr<Process> process_;
public:
mc_snapshot_t parent_snapshot_;
public:
ModelChecker(ModelChecker const&) = delete;
ModelChecker& operator=(ModelChecker const&) = delete;
- ModelChecker(pid_t pid, int socket);
+ ModelChecker(std::unique_ptr<Process> process);
~ModelChecker();
+
Process& process()
{
- return process_;
+ return *process_;
}
PageStore& page_store()
{
return page_store_;
}
const char* get_host_name(const char* name);
+
+ bool is_important_snapshot(Snapshot const& snapshot) const
+ {
+ return &snapshot == this->parent_snapshot_;
+ }
+
+ void start();
+ void shutdown();
+ void resume(simgrid::mc::Process& process);
+ void loop();
+ bool handle_events();
+ void wait_client(simgrid::mc::Process& process);
+ void simcall_handle(simgrid::mc::Process& process, unsigned long pid, int value);
+ void wait_for_requests()
+ {
+ mc_model_checker->wait_client(mc_model_checker->process());
+ }
+ void exit(int status);
+private:
+ void setup_ignore();
+ bool handle_message(char* buffer, ssize_t size);
+ void handle_signals();
+ void handle_waitpid();
+ void on_signal(const struct signalfd_siginfo* info);
+
};
}
