* iteself does not indicate no value.
*/
#define VALUE_NONE 0xdeadbeef
+#define WRITE_REFERENCED ((void *)0x1)
/**
* @brief The "location" at which a fence occurs
ATOMIC_WAIT, // < A wait action
ATOMIC_TIMEDWAIT, // < A timed wait action
ATOMIC_ANNOTATION, // < An annotation action to pass information to a trace analysis
- READY_FREE
+ READY_FREE, // < Write is ready to be freed
+ ATOMIC_NOP // < Placeholder
} action_type_t;
thread_id_t get_tid() const { return tid; }
action_type get_type() const { return type; }
+ void set_type(action_type _type) { type = _type; }
+ action_type get_original_type() const { return original_type; }
+ void set_original_type(action_type _type) { original_type = _type; }
void set_free() { type = READY_FREE; }
memory_order get_mo() const { return order; }
memory_order get_original_mo() const { return original_order; }
ModelAction * get_reads_from() const { return reads_from; }
uint64_t get_time() const {return time;}
cdsc::mutex * get_mutex() const;
+ bool get_swap_flag() const { return swap_flag; }
void set_read_from(ModelAction *act);
bool is_trylock() const;
bool is_unlock() const;
bool is_wait() const;
+ bool is_create() const;
bool is_notify() const;
bool is_notify_one() const;
bool is_success_lock() const;
bool equals(const ModelAction *x) const { return this == x; }
void set_value(uint64_t val) { value = val; }
+ void use_original_type();
+
/* to accomodate pthread create and join */
Thread * thread_operand;
void set_thread_operand(Thread *th) { thread_operand = th; }
sllnode<ModelAction *> * getTraceRef() { return trace_ref; }
sllnode<ModelAction *> * getThrdMapRef() { return thrdmap_ref; }
sllnode<ModelAction *> * getActionRef() { return action_ref; }
+
+ void incr_func_ref_count() { func_ref_count++; }
+ void decr_func_ref_count() { if (func_ref_count > 0) func_ref_count--; }
+ uint32_t get_func_ref_count() { return func_ref_count; }
+
SNAPSHOTALLOC
private:
const char * get_type_str() const;
sllnode<ModelAction *> * thrdmap_ref;
sllnode<ModelAction *> * action_ref;
+ /** @brief Number of read actions that are reading from this store */
+ uint32_t func_ref_count;
/** @brief The value written (for write or RMW; undefined for read) */
uint64_t value;
/** @brief Type of action (read, write, RMW, fence, thread create, etc.) */
action_type type;
+ /** @brief The original type of action (read, write, RMW) before it was
+ * set as READY_FREE or weaken from a RMW to a write */
+ action_type original_type;
+
+ /** @brief Indicate whether the action type and the original action type
+ * has been swapped. */
+ bool swap_flag;
+
/** @brief The memory order for this operation. */
memory_order order;