2 * @brief Core model checker.
12 #include "hashtable.h"
14 #include "modeltypes.h"
15 #include "stl-model.h"
19 /* Forward declaration */
31 typedef SnapList<ModelAction *> action_list_t;
33 /** @brief Model checker execution stats */
34 struct execution_stats {
35 int num_total; /**< @brief Total number of executions */
36 int num_infeasible; /**< @brief Number of infeasible executions */
37 int num_buggy_executions; /** @brief Number of buggy executions */
38 int num_complete; /**< @brief Number of feasible, non-buggy, complete executions */
39 int num_redundant; /**< @brief Number of redundant, aborted executions */
42 /** @brief The central structure for model-checking */
45 ModelChecker(struct model_params params);
50 /** @returns the context for the main model-checking system thread */
51 ucontext_t * get_system_context() { return &system_context; }
53 Thread * get_thread(thread_id_t tid) const;
54 Thread * get_thread(const ModelAction *act) const;
55 int get_promise_number(const Promise *promise) const;
57 bool is_enabled(Thread *t) const;
58 bool is_enabled(thread_id_t tid) const;
60 thread_id_t get_next_id();
61 unsigned int get_num_threads() const;
62 Thread * get_current_thread() const;
64 void switch_from_master(Thread *thread);
65 uint64_t switch_to_master(ModelAction *act);
66 ClockVector * get_cv(thread_id_t tid) const;
67 ModelAction * get_parent_action(thread_id_t tid) const;
68 void check_promises_thread_disabled();
69 bool isfeasibleprefix() const;
71 bool assert_bug(const char *msg, ...);
72 void assert_user_bug(const char *msg);
74 const model_params params;
75 void add_trace_analysis(TraceAnalysis *a) {
76 trace_analyses->push_back(a);
79 action_list_t * get_actions_on_obj(void * obj, thread_id_t tid);
80 ModelAction * get_last_action(thread_id_t tid) const;
84 /** The scheduler to use: tracks the running/ready Threads */
85 Scheduler * const scheduler;
86 NodeStack * const node_stack;
87 ModelExecution *execution;
89 void execute_sleep_set();
91 bool next_execution();
92 bool should_terminate_execution();
94 Thread * get_next_thread();
95 void reset_to_initial_state();
99 ModelAction *earliest_diverge;
101 ucontext_t system_context;
103 ModelVector<TraceAnalysis *> * trace_analyses;
105 /** @brief The cumulative execution stats */
106 struct execution_stats stats;
108 void run_trace_analyses();
109 void print_bugs() const;
110 void print_execution(bool printbugs) const;
111 void print_stats() const;
113 friend void user_main_wrapper();
116 extern ModelChecker *model;
118 #endif /* __MODEL_H__ */