X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=model.h;h=c97cbf1a05f905fb79087c21b91401548b5ecf2e;hb=d70f6f259c9850e5fceb527e3a9541c440c0146b;hp=6bb4788c061b90e427720214756c144a2ff325fc;hpb=39c0de028fe3b1c1d229ecf715007c751ddab445;p=model-checker.git

diff --git a/model.h b/model.h
index 6bb4788..c97cbf1 100644
--- 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;
 
@@ -134,41 +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;
@@ -180,9 +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;