X-Git-Url: http://demsky.eecs.uci.edu/git/?a=blobdiff_plain;f=model.h;h=4f139878ce00300f4252c1705537deabd7643a5f;hb=2cf946f3bf4f12d2a353fb0c4f4644a6b2f65e56;hp=a2bbab2eee0aef821ae9e7ef1e79820a71da958c;hpb=67e374f0a24b266f2ea81913770e89a4aac68ff3;p=model-checker.git

diff --git a/model.h b/model.h
index a2bbab2..4f13987 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 */
@@ -117,7 +121,7 @@ public:
 	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 check_promises(thread_id_t tid, ClockVector *old_cv, ClockVector *merge_cv);
 	bool isfeasibleprefix() const;
 
 	bool assert_bug(const char *msg);
@@ -131,15 +135,15 @@ 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();
@@ -148,6 +152,7 @@ private:
 	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);
@@ -166,7 +171,7 @@ private:
 	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;
@@ -178,10 +183,12 @@ 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 *act, rel_heads_list_t *release_heads);
+	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;