Add SCFence analysis

[model-checker.git] / execution.h

diff --git a/execution.h b/execution.h
index 616a47cb47a4e34c182359e0217724b2808e59ad..9322f55b4c3e0de4ab37502e328d812bf479be68 100644 (file)
--- a/execution.h
+++ b/execution.h
@@ -61,11 +61,13 @@ struct release_seq {
 class ModelExecution {
 public:
        ModelExecution(ModelChecker *m,
-                       struct model_params *params,
+                       const struct model_params *params,
                        Scheduler *scheduler,
                        NodeStack *node_stack);
        ~ModelExecution();
 
+       const struct model_params * get_params() const { return params; }
+
        Thread * take_step(ModelAction *curr);
        void fixup_release_sequences();
 
@@ -107,13 +109,16 @@ public:
        bool is_feasible_prefix_ignore_relseq() const;
        bool is_infeasible() const;
        bool is_deadlocked() const;
+       bool is_yieldblocked() const;
        bool too_many_steps() const;
 
        ModelAction * get_next_backtrack();
 
-       action_list_t * get_action_trace() const { return action_trace; }
+       action_list_t * get_action_trace() { return &action_trace; }
+
+       CycleGraph * const get_mo_graph() { return mo_graph; }
 
-       MEMALLOC
+       SNAPSHOTALLOC
 private:
        int get_execution_number() const;
 
@@ -129,6 +134,7 @@ private:
        bool mo_may_allow(const ModelAction *writer, const ModelAction *reader);
        bool promises_may_allow(const ModelAction *writer, const ModelAction *reader) const;
        void set_bad_synchronization();
+       void set_bad_sc_read();
        bool promises_expired() const;
        bool should_wake_up(const ModelAction *curr, const Thread *thread) const;
        void wake_up_sleeping_actions(ModelAction *curr);
@@ -138,7 +144,7 @@ private:
        ModelAction * check_current_action(ModelAction *curr);
        bool initialize_curr_action(ModelAction **curr);
        bool process_read(ModelAction *curr);
-       bool process_write(ModelAction *curr);
+       bool process_write(ModelAction *curr, work_queue_t *work);
        bool process_fence(ModelAction *curr);
        bool process_mutex(ModelAction *curr);
        bool process_thread_action(ModelAction *curr);
@@ -157,7 +163,8 @@ private:
        void set_backtracking(ModelAction *act);
        bool set_latest_backtrack(ModelAction *act);
        Promise * pop_promise_to_resolve(const ModelAction *curr);
-       bool resolve_promise(ModelAction *curr, Promise *promise);
+       bool resolve_promise(ModelAction *curr, Promise *promise,
+                       work_queue_t *work);
        void compute_promises(ModelAction *curr);
        void compute_relseq_breakwrites(ModelAction *curr);
 
@@ -180,25 +187,33 @@ private:
        bool w_modification_order(ModelAction *curr, ModelVector<ModelAction *> *send_fv);
        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;
+       void propagate_clockvector(ModelAction *acquire, work_queue_t *work);
        bool resolve_release_sequences(void *location, work_queue_t *work_queue);
        void add_future_value(const ModelAction *writer, ModelAction *reader);
-
+       bool check_coherence_promise(const ModelAction *write, const ModelAction *read);
        ModelAction * get_uninitialized_action(const ModelAction *curr) const;
 
-       action_list_t * const action_trace;
-       HashTable<int, Thread *, int> * const thread_map;
+       action_list_t action_trace;
+       SnapVector<Thread *> thread_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> * const 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> * const condvar_waiters_map;
+       HashTable<const void *, action_list_t *, uintptr_t, 4> condvar_waiters_map;
+
+       HashTable<void *, SnapVector<action_list_t> *, uintptr_t, 4> obj_thrd_map;
 
-       HashTable<void *, SnapVector<action_list_t> *, uintptr_t, 4 > * const obj_thrd_map;
-       SnapVector<Promise *> * const promises;
-       SnapVector<struct PendingFutureValue> * const futurevalues;
+       /**
+        * @brief List of currently-pending promises
+        *
+        * Promises are sorted by the execution order of the read(s) which
+        * created them
+        */
+       SnapVector<Promise *> promises;
+       SnapVector<struct PendingFutureValue> futurevalues;
 
        /**
         * List of pending release sequences. Release sequences might be
@@ -206,10 +221,10 @@ private:
         * are established. Each entry in the list may only be partially
         * filled, depending on its pending status.
         */
-       SnapVector<struct release_seq *> * const pending_rel_seqs;
+       SnapVector<struct release_seq *> pending_rel_seqs;
 
-       SnapVector<ModelAction *> * const thrd_last_action;
-       SnapVector<ModelAction *> * const thrd_last_fence_release;
+       SnapVector<ModelAction *> thrd_last_action;
+       SnapVector<ModelAction *> thrd_last_fence_release;
        NodeStack * const node_stack;
 
        /** A special model-checker Thread; used for associating with