new test case

[model-checker.git] / model.h

diff --git a/model.h b/model.h
index fd99700a01c35f77ff2d87445ee228b71ae69de5..c97cbf1a05f905fb79087c21b91401548b5ecf2e 100644 (file)
--- a/model.h
+++ b/model.h
@@ -75,7 +75,11 @@ struct PendingFutureValue {
 struct release_seq {
        /** @brief The acquire operation */
        ModelAction *acquire;
-       /** @brief The head of the RMW chain from which 'acquire' reads; may be
+       /** @brief The read operation that may read from a release sequence;
+        *  may be the same as acquire, or else an earlier action in the same
+        *  thread (i.e., when 'acquire' is a fence-acquire) */
+       const ModelAction *read;
+       /** @brief The head of the RMW chain from which 'read' reads; may be
         *  equal to 'release' */
        const ModelAction *rf;
        /** @brief The head of the potential longest release sequence chain */
@@ -97,7 +101,7 @@ public:
 
        void print_summary() const;
 #if SUPPORT_MOD_ORDER_DUMP
-       void dumpGraph(char *filename);
+       void dumpGraph(char *filename) const;
 #endif
 
        void add_thread(Thread *t);
@@ -112,20 +116,17 @@ public:
        unsigned int get_num_threads() const;
        Thread * get_current_thread() const;
 
-       int switch_to_master(ModelAction *act);
+       uint64_t switch_to_master(ModelAction *act);
        ClockVector * get_cv(thread_id_t tid) const;
        ModelAction * get_parent_action(thread_id_t tid) 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 check_promises(thread_id_t tid, ClockVector *old_cv, ClockVector *merge_cv);
        bool isfeasibleprefix() const;
 
        bool assert_bug(const char *msg);
        void assert_user_bug(const char *msg);
 
-       void set_bad_synchronization();
-
        const model_params params;
        Node * get_curr_node() const;
 
@@ -134,40 +135,44 @@ private:
        /** The scheduler to use: tracks the running/ready Threads */
        Scheduler *scheduler;
 
-       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 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() const;
        void set_assert();
+       void set_bad_synchronization();
        bool promises_expired() const;
        void execute_sleep_set();
-       void wake_up_sleeping_actions(ModelAction * curr);
+       void wake_up_sleeping_actions(ModelAction *curr);
        modelclock_t get_next_seq_num();
 
        bool next_execution();
        void set_current_action(ModelAction *act);
-       Thread * check_current_action(ModelAction *curr);
+       ModelAction * check_current_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_fence(ModelAction *curr);
        bool process_mutex(ModelAction *curr);
        bool process_thread_action(ModelAction *curr);
        void process_relseq_fixup(ModelAction *curr, work_queue_t *work_queue);
+       bool read_from(ModelAction *act, const ModelAction *rf);
        bool check_action_enabled(ModelAction *curr);
 
-       bool take_step();
+       bool take_step(ModelAction *curr);
 
        void check_recency(ModelAction *curr, const ModelAction *rf);
        ModelAction * get_last_conflict(ModelAction *act);
        void set_backtracking(ModelAction *act);
        Thread * get_next_thread(ModelAction *curr);
+       bool set_latest_backtrack(ModelAction *act);
        ModelAction * get_next_backtrack();
        void reset_to_initial_state();
        bool resolve_promises(ModelAction *curr);
        void compute_promises(ModelAction *curr);
        void compute_relseq_breakwrites(ModelAction *curr);
 
-       void check_curr_backtracking(ModelAction * curr);
+       void check_curr_backtracking(ModelAction *curr);
        void add_action_to_lists(ModelAction *act);
        ModelAction * get_last_action(thread_id_t tid) const;
        ModelAction * get_last_fence_release(thread_id_t tid) const;
@@ -179,9 +184,12 @@ private:
        void post_r_modification_order(ModelAction *curr, const ModelAction *rf);
        bool r_modification_order(ModelAction *curr, const ModelAction *rf);
        bool w_modification_order(ModelAction *curr);
+       void get_release_seq_heads(ModelAction *acquire, ModelAction *read, rel_heads_list_t *release_heads);
        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);
 
+       ModelAction * new_uninitialized_action(void *location) const;
+
        ModelAction *diverge;
        ModelAction *earliest_diverge;