2 * @brief Core model checker.
12 #include "hashtable.h"
14 #include "modeltypes.h"
15 #include "stl-model.h"
18 #include "classlist.h"
19 #include "snapshot-interface.h"
21 /** @brief Model checker execution stats */
22 struct execution_stats {
23 int num_total; /**< @brief Total number of executions */
24 int num_buggy_executions; /** @brief Number of buggy executions */
25 int num_complete; /**< @brief Number of feasible, non-buggy, complete executions */
28 /** @brief The central structure for model-checking */
33 model_params * getParams();
36 /** Exit the model checker, intended for pluggins. */
37 void exit_model_checker();
39 /** @returns the context for the main model-checking system thread */
40 ucontext_t * get_system_context() { return &system_context; }
42 ModelExecution * get_execution() const { return execution; }
43 ModelHistory * get_history() const { return history; }
45 int get_execution_number() const { return execution_number; }
47 Thread * get_thread(thread_id_t tid) const;
48 Thread * get_thread(const ModelAction *act) const;
50 Thread * get_current_thread() const;
52 void switch_from_master(Thread *thread);
53 uint64_t switch_to_master(ModelAction *act);
54 uint64_t switch_thread(ModelAction *act);
56 void startRunExecution(Thread *old);
57 void finishRunExecution(Thread *old);
59 void chooseThread(ModelAction *act, Thread *thr);
60 Thread * getNextThread();
61 void handleChosenThread(Thread *old);
62 void handleNewValidThread(Thread *old, Thread *next);
64 void assert_bug(const char *msg, ...);
66 void assert_user_bug(const char *msg);
69 void add_trace_analysis(TraceAnalysis *a) { trace_analyses.push_back(a); }
70 void set_inspect_plugin(TraceAnalysis *a) { inspect_plugin=a; }
72 Thread * getInitThread() {return init_thread;}
73 Scheduler * getScheduler() {return scheduler;}
76 /** Snapshot id we return to restart. */
79 /** The scheduler to use: tracks the running/ready Threads */
80 Scheduler * const scheduler;
81 ModelHistory * history;
82 ModelExecution *execution;
87 unsigned int curr_thread_num;
89 Thread * chosen_thread;
94 modelclock_t checkfree;
96 unsigned int get_num_threads() const;
98 void finish_execution(bool moreexecutions);
99 bool should_terminate_execution();
101 Thread * get_next_thread();
102 void reset_to_initial_state();
104 ucontext_t system_context;
106 ModelVector<TraceAnalysis *> trace_analyses;
108 /** @bref Plugin that can inspect new actions. */
109 TraceAnalysis *inspect_plugin;
110 /** @brief The cumulative execution stats */
111 struct execution_stats stats;
113 void run_trace_analyses();
114 void print_bugs() const;
115 void print_execution(bool printbugs) const;
116 void print_stats() const;
119 extern ModelChecker *model;
120 void parse_options(struct model_params *params);
121 void install_trace_analyses(ModelExecution *execution);
123 #endif /* __MODEL_H__ */