partial conversion to fuzzer

[c11tester.git] / nodestack.h

diff --git a/nodestack.h b/nodestack.h
index 6ae96be8d508d9b598ae3bb3c396760fea6047da..c5da083cf777fc127398b1896887b9dfa34d8b2e 100644 (file)
--- a/nodestack.h
+++ b/nodestack.h
@@ -10,7 +10,6 @@
 
 #include "mymemory.h"
 #include "schedule.h"
-#include "promise.h"
 #include "stl-model.h"
 
 class ModelAction;
@@ -22,26 +21,6 @@ struct fairness_info {
        bool priority;
 };
 
-/**
- * @brief Types of read-from relations
- *
- * Our "may-read-from" set is composed of multiple types of reads, and we have
- * to iterate through all of them in the backtracking search. This enumeration
- * helps to identify which type of read-from we are currently observing.
- */
-typedef enum {
-       READ_FROM_PAST, /**< @brief Read from a prior, existing store */
-       READ_FROM_PROMISE, /**< @brief Read from an existing promised future value */
-       READ_FROM_FUTURE, /**< @brief Read from a newly-asserted future value */
-       READ_FROM_NONE, /**< @brief A NULL state, which should not be reached */
-} read_from_type_t;
-
-#define YIELD_E 1
-#define YIELD_D 2
-#define YIELD_S 4
-#define YIELD_P 8
-#define YIELD_INDEX(tid1, tid2, num_threads) (tid1*num_threads+tid2)
-
 
 /**
  * @brief A single node in a NodeStack
@@ -55,18 +34,9 @@ typedef enum {
 class Node {
 public:
        Node(const struct model_params *params, ModelAction *act, Node *par,
-                       int nthreads, Node *prevfairness);
+                       int nthreads);
        ~Node();
-       /* return true = thread choice has already been explored */
-       bool has_been_explored(thread_id_t tid) const;
-       /* return true = backtrack set is empty */
-       bool backtrack_empty() const;
-
-       void clear_backtracking();
-       void explore_child(ModelAction *act, enabled_type_t *is_enabled);
-       /* return false = thread was already in backtrack */
-       bool set_backtrack(thread_id_t id);
-       thread_id_t get_next_backtrack();
+
        bool is_enabled(Thread *t) const;
        bool is_enabled(thread_id_t tid) const;
        enabled_type_t enabled_status(thread_id_t tid) const;
@@ -83,97 +53,20 @@ public:
         * occurred previously in the stack. */
        Node * get_parent() const { return parent; }
 
-       read_from_type_t get_read_from_status();
-       bool increment_read_from();
-       bool read_from_empty() const;
-       unsigned int read_from_size() const;
-
-       void print_read_from_past();
-       void add_read_from_past(const ModelAction *act);
-       const ModelAction * get_read_from_past() const;
-       const ModelAction * get_read_from_past(int i) const;
-       int get_read_from_past_size() const;
-
-       void add_read_from_promise(const ModelAction *reader);
-       Promise * get_read_from_promise() const;
-       Promise * get_read_from_promise(int i) const;
-       int get_read_from_promise_size() const;
-
-       bool add_future_value(struct future_value fv);
-       struct future_value get_future_value() const;
-
-       void set_promise(unsigned int i);
-       bool get_promise(unsigned int i) const;
-       bool increment_promise();
-       bool promise_empty() const;
-       void clear_promise_resolutions();
-
-       enabled_type_t *get_enabled_array() {return enabled_array;}
-
-       void set_misc_max(int i);
-       int get_misc() const;
-       bool increment_misc();
-       bool misc_empty() const;
 
-       void add_relseq_break(const ModelAction *write);
-       const ModelAction * get_relseq_break() const;
-       bool increment_relseq_break();
-       bool relseq_break_empty() const;
-
-       bool increment_behaviors();
 
        void print() const;
 
        MEMALLOC
 private:
-       void explore(thread_id_t tid);
-       int get_yield_data(int tid1, int tid2) const;
-       bool read_from_past_empty() const;
-       bool increment_read_from_past();
-       bool read_from_promise_empty() const;
-       bool increment_read_from_promise();
-       bool future_value_empty() const;
-       bool increment_future_value();
-       read_from_type_t read_from_status;
        const struct model_params * get_params() const { return params; }
-
        ModelAction * const action;
-
        const struct model_params * const params;
 
        /** @brief ATOMIC_UNINIT action which was created at this Node */
        ModelAction *uninit_action;
-
        Node * const parent;
        const int num_threads;
-       ModelVector<bool> explored_children;
-       ModelVector<bool> backtrack;
-       ModelVector<struct fairness_info> fairness;
-       int numBacktracks;
-       enabled_type_t *enabled_array;
-
-       /**
-        * The set of past ModelActions that this the action at this Node may
-        * read from. Only meaningful if this Node represents a 'read' action.
-        */
-       ModelVector<const ModelAction *> read_from_past;
-       unsigned int read_from_past_idx;
-
-       ModelVector<const ModelAction *> read_from_promises;
-       int read_from_promise_idx;
-
-       ModelVector<struct future_value> future_values;
-       int future_index;
-
-       ModelVector<bool> resolve_promise;
-       int resolve_promise_idx;
-
-       ModelVector<const ModelAction *> relseq_break_writes;
-       int relseq_break_index;
-
-       int misc_index;
-       int misc_max;
-       int * yield_data;
 };
 
 typedef ModelVector<Node *> node_list_t;
@@ -197,7 +90,6 @@ public:
        Node * get_head() const;
        Node * get_next() const;
        void reset_execution();
-       void pop_restofstack(int numAhead);
        void full_reset();
        int get_total_nodes() { return total_nodes; }