X-Git-Url: http://plrg.eecs.uci.edu/git/?p=c11tester.git;a=blobdiff_plain;f=model.h;h=6d702b0d94604d281a0cdea8331eb669e15a3704;hp=6d892cbfeabeb92db267f1cc718b30972560371d;hb=0c61b063738d57fdd655faa5f859f281425a97ca;hpb=9a89975eb7aa3c818124382fc04cc8e8d51dbaaa

diff --git a/model.h b/model.h
index 6d892cbf..6d702b0d 100644
--- a/model.h
+++ b/model.h
@@ -36,11 +36,20 @@ struct model_params {
 	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;
 };
 
 struct PendingFutureValue {
-	uint64_t value;
-	modelclock_t expiration;
+	ModelAction *writer;
 	ModelAction * act;
 };
 
@@ -89,7 +98,7 @@ public:
 	Thread * get_thread(ModelAction *act) 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);
@@ -99,12 +108,14 @@ public:
 	bool isfeasible();
 	bool isfeasibleotherthanRMW();
 	bool isfinalfeasible();
+	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();
 	void set_assert() {asserted=true;}
+	bool is_deadlocked() const;
 
 	/** @brief Alert the model-checker that an incorrectly-ordered
 	 * synchronization was made */
@@ -112,19 +123,23 @@ public:
 
 	const model_params params;
 	Scheduler * get_scheduler() { return scheduler;}
+	Node * get_curr_node();
 
 	MEMALLOC
 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 has_asserted() {return asserted;}
 	void reset_asserted() {asserted=false;}
 	int num_executions;
 	int num_feasible_executions;
 	bool promises_expired();
-
+	void execute_sleep_set();
+	void wake_up_sleeping_actions(ModelAction * curr);
 	modelclock_t get_next_seq_num();
 
 	/**
@@ -135,11 +150,12 @@ private:
 	 */
 	void set_current_action(ModelAction *act) { priv->current_action = 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 process_thread_action(ModelAction *curr);
+	void process_relseq_fixup(ModelAction *curr, work_queue_t *work_queue);
 	bool check_action_enabled(ModelAction *curr);
 
 	bool take_step();
@@ -152,6 +168,7 @@ private:
 	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 add_action_to_lists(ModelAction *act);
@@ -163,9 +180,8 @@ 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);
-	bool release_seq_heads(const ModelAction *rf, rel_heads_list_t *release_heads) const;
+	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;
@@ -182,9 +198,13 @@ private:
 	 * 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> *condvar_waiters_map;
+
 	HashTable<void *, std::vector<action_list_t>, uintptr_t, 4 > *obj_thrd_map;
-	std::vector<Promise *> *promises;
-	std::vector<struct PendingFutureValue> *futurevalues;
+	std::vector< Promise *, SnapshotAlloc<Promise *> > *promises;
+	std::vector< struct PendingFutureValue, SnapshotAlloc<struct PendingFutureValue> > *futurevalues;
 
 	/**
 	 * List of pending release sequences. Release sequences might be
@@ -192,15 +212,19 @@ private:
 	 * are established. Each entry in the list may only be partially
 	 * filled, depending on its pending status.
 	 */
-	std::vector<struct release_seq *> *pending_rel_seqs;
+	std::vector< struct release_seq *, SnapshotAlloc<struct release_seq *> > *pending_rel_seqs;
 
-	std::vector<ModelAction *> *thrd_last_action;
+	std::vector< ModelAction *, SnapshotAlloc<ModelAction *> > *thrd_last_action;
 	NodeStack *node_stack;
 
 	/** Private data members that should be snapshotted. They are grouped
 	 * together for efficiency and maintainability. */
 	struct model_snapshot_members *priv;
 
+	/** A special model-checker Thread; used for associating with
+	 *  model-checker-related ModelAcitons */
+	Thread *model_thread;
+
 	/**
 	 * @brief The modification order graph
 	 *