class Promise;
class Scheduler;
class Thread;
+struct model_snapshot_members;
/** @brief Shorthand for a list of release sequence heads */
typedef std::vector< const ModelAction *, ModelAlloc<const ModelAction *> > rel_heads_list_t;
int maxfuturedelay;
unsigned int fairwindow;
unsigned int enabledcount;
+ unsigned int bound;
+
+ /** @brief Maximum number of future values that can be sent to the same
+ * read */
+ int maxfuturevalues;
+
+ /** @brief Only generate a new future value/expiration pair if the
+ * expiration time exceeds the existing one by more than the slop
+ * value */
+ unsigned int expireslop;
+
+ /** @brief Verbosity (0 = quiet; 1 = noisy) */
+ int verbose;
};
-struct PendingFutureValue {
- uint64_t value;
- modelclock_t expiration;
- ModelAction * act;
+/** @brief Model checker execution stats */
+struct execution_stats {
+ int num_total; /**< @brief Total number of executions */
+ int num_infeasible; /**< @brief Number of infeasible executions */
+ int num_buggy_executions; /** @brief Number of buggy executions */
+ int num_complete; /**< @brief Number of feasible, non-buggy, complete executions */
+ int num_redundant; /**< @brief Number of redundant, aborted executions */
};
-/**
- * Structure for holding small ModelChecker members that should be snapshotted
- */
-struct model_snapshot_members {
- ModelAction *current_action;
- unsigned int next_thread_id;
- modelclock_t used_sequence_numbers;
- Thread *nextThread;
- ModelAction *next_backtrack;
+struct PendingFutureValue {
+ ModelAction *writer;
+ ModelAction *act;
};
/** @brief Records information regarding a single pending release sequence */
/** @returns the context for the main model-checking system thread */
ucontext_t * get_system_context() { return &system_context; }
- /** Prints an execution summary with trace information. */
- void print_summary();
+ void print_summary() const;
#if SUPPORT_MOD_ORDER_DUMP
void dumpGraph(char *filename);
#endif
Thread * get_thread(thread_id_t tid) const;
Thread * get_thread(ModelAction *act) const;
+ bool is_enabled(Thread *t) const;
+ bool is_enabled(thread_id_t tid) const;
+
thread_id_t get_next_id();
- unsigned int get_num_threads();
+ unsigned int get_num_threads() const;
Thread * get_current_thread();
int switch_to_master(ModelAction *act);
ClockVector * get_cv(thread_id_t tid);
ModelAction * get_parent_action(thread_id_t tid);
bool next_execution();
- bool isfeasible();
- bool isfeasibleotherthanRMW();
- bool isfinalfeasible();
+ bool isfeasible() const;
+ bool isfeasibleotherthanRMW() const;
+ bool isfinalfeasible() const;
+ void check_promises_thread_disabled();
void mo_check_promises(thread_id_t tid, const ModelAction *write);
void check_promises(thread_id_t tid, ClockVector *old_cv, ClockVector * merge_cv);
void get_release_seq_heads(ModelAction *act, rel_heads_list_t *release_heads);
void finish_execution();
- bool isfeasibleprefix();
+ bool isfeasibleprefix() const;
+
+ bool assert_bug(const char *msg);
+ void assert_user_bug(const char *msg);
+
void set_assert() {asserted=true;}
+ bool is_deadlocked() const;
+ bool is_complete_execution() const;
+ void print_stats() const;
/** @brief Alert the model-checker that an incorrectly-ordered
* synchronization was made */
void set_bad_synchronization() { bad_synchronization = true; }
const model_params params;
- Scheduler * get_scheduler() { return scheduler;}
+ Node * get_curr_node();
MEMALLOC
private:
bool sleep_can_read_from(ModelAction * curr, const ModelAction *write);
bool thin_air_constraint_may_allow(const ModelAction * writer, const ModelAction *reader);
+ bool mo_may_allow(const ModelAction * writer, const ModelAction *reader);
bool has_asserted() {return asserted;}
void reset_asserted() {asserted=false;}
- int num_executions;
- int num_feasible_executions;
- bool promises_expired();
+ bool promises_expired() const;
void execute_sleep_set();
void wake_up_sleeping_actions(ModelAction * curr);
modelclock_t get_next_seq_num();
- /**
- * Stores the ModelAction for the current thread action. Call this
- * immediately before switching from user- to system-context to pass
- * data between them.
- * @param act The ModelAction created by the user-thread action
- */
- void set_current_action(ModelAction *act) { priv->current_action = act; }
+ void set_current_action(ModelAction *act);
Thread * check_current_action(ModelAction *curr);
- ModelAction * initialize_curr_action(ModelAction *curr);
+ bool initialize_curr_action(ModelAction **curr);
bool process_read(ModelAction *curr, bool second_part_of_rmw);
bool process_write(ModelAction *curr);
bool process_mutex(ModelAction *curr);
bool w_modification_order(ModelAction *curr);
bool release_seq_heads(const ModelAction *rf, rel_heads_list_t *release_heads, struct release_seq *pending) const;
bool resolve_release_sequences(void *location, work_queue_t *work_queue);
- void do_complete_join(ModelAction *join);
ModelAction *diverge;
ModelAction *earliest_diverge;
/** Per-object list of actions. Maps an object (i.e., memory location)
* to a trace of all actions performed on the object. */
- HashTable<const void *, action_list_t, uintptr_t, 4> *obj_map;
+ HashTable<const void *, action_list_t *, uintptr_t, 4> *obj_map;
+
+ /** Per-object list of actions. Maps an object (i.e., memory location)
+ * to a trace of all actions performed on the object. */
+ HashTable<const void *, action_list_t *, uintptr_t, 4> *lock_waiters_map;
/** Per-object list of actions. Maps an object (i.e., memory location)
* to a trace of all actions performed on the object. */
- HashTable<const void *, action_list_t, uintptr_t, 4> *lock_waiters_map;
+ HashTable<const void *, action_list_t *, uintptr_t, 4> *condvar_waiters_map;
- HashTable<void *, std::vector<action_list_t>, uintptr_t, 4 > *obj_thrd_map;
+ HashTable<void *, std::vector<action_list_t> *, uintptr_t, 4 > *obj_thrd_map;
std::vector< Promise *, SnapshotAlloc<Promise *> > *promises;
std::vector< struct PendingFutureValue, SnapshotAlloc<struct PendingFutureValue> > *futurevalues;
bool asserted;
/** @brief Incorrectly-ordered synchronization was made */
bool bad_synchronization;
+
+ /** @brief The cumulative execution stats */
+ struct execution_stats stats;
+ void record_stats();
+
+ bool have_bug_reports() const;
+ void print_bugs() const;
+ void print_execution(bool printbugs) const;
};
extern ModelChecker *model;
projects / c11tester.git / blobdiff