+/** @file model.h
+ * @brief Core model checker.
+ */
+
#ifndef __MODEL_H__
#define __MODEL_H__
#include <list>
#include <map>
+#include <vector>
#include <cstddef>
#include <ucontext.h>
#include "schedule.h"
+#include "mymemory.h"
+#include <utility>
#include "libthreads.h"
#include "libatomic.h"
#include "threads.h"
#include "action.h"
/* Forward declaration */
-class TreeNode;
-
-class Backtrack {
-public:
- Backtrack(ModelAction *d, action_list_t *t) {
- diverge = d;
- actionTrace = t;
- iter = actionTrace->begin();
- }
- ModelAction * get_diverge() { return diverge; }
- action_list_t * get_trace() { return actionTrace; }
- void advance_state() { iter++; }
- ModelAction * get_state() {
- return iter == actionTrace->end() ? NULL : *iter;
- }
-private:
- ModelAction *diverge;
- action_list_t *actionTrace;
- /* points to position in actionTrace as we replay */
- action_list_t::iterator iter;
-};
+class NodeStack;
class ModelChecker {
public:
int add_thread(Thread *t);
void remove_thread(Thread *t);
- Thread * get_thread(thread_id_t tid) { return thread_map[tid]; }
+ Thread * get_thread(thread_id_t tid) { return (*thread_map)[id_to_int(tid)]; }
- int get_next_id();
+ thread_id_t get_next_id();
+ int get_num_threads();
+ int get_next_seq_num();
int switch_to_master(ModelAction *act);
bool next_execution();
+
+ MEMALLOC
private:
- int used_thread_id;
+ int next_thread_id;
+ int used_sequence_numbers;
int num_executions;
ModelAction * get_last_conflict(ModelAction *act);
void set_backtracking(ModelAction *act);
- thread_id_t advance_backtracking_state();
thread_id_t get_next_replay_thread();
- Backtrack * get_next_backtrack();
+ ModelAction * get_next_backtrack();
void reset_to_initial_state();
- class ModelAction *current_action;
- Backtrack *exploring;
+ void add_action_to_lists(ModelAction *act);
+ ModelAction * get_last_action(thread_id_t tid);
+ ModelAction * get_parent_action(thread_id_t tid);
+
+ void print_list(action_list_t *list);
+
+ ModelAction *current_action;
+ ModelAction *diverge;
thread_id_t nextThread;
ucontext_t *system_context;
action_list_t *action_trace;
- std::map<thread_id_t, class Thread *> thread_map;
- class TreeNode *rootNode, *currentNode;
- std::list<class Backtrack *> backtrack_list;
+ std::map<int, class Thread *> *thread_map;
+ std::map<void *, std::vector<action_list_t> > *obj_thrd_map;
+ std::vector<ModelAction *> *thrd_last_action;
+ class NodeStack *node_stack;
+ ModelAction *next_backtrack;
};
extern ModelChecker *model;