ModelAction::ModelAction(action_type_t type, memory_order order, void *loc,
uint64_t value, Thread *thread) :
location(loc),
+ position(NULL),
reads_from(NULL),
last_fence_release(NULL),
node(NULL),
seq_number(ACTION_INITIAL_CLOCK)
{
/* References to NULL atomic variables can end up here */
- ASSERT(loc || type == ATOMIC_FENCE);
+ ASSERT(loc || type == ATOMIC_FENCE || type == NOOP);
Thread *t = thread ? thread : thread_current();
this->tid = t->get_id();
ModelAction::ModelAction(action_type_t type, memory_order order, void *loc,
uint64_t value, int size) :
location(loc),
+ position(NULL),
+ reads_from(NULL),
+ last_fence_release(NULL),
+ node(NULL),
+ cv(NULL),
+ value(value),
+ type(type),
+ order(order),
+ original_order(order),
+ seq_number(ACTION_INITIAL_CLOCK)
+{
+ /* References to NULL atomic variables can end up here */
+ ASSERT(loc);
+ this->size = size;
+ Thread *t = thread_current();
+ this->tid = t->get_id();
+}
+
+
+/**
+ * @brief Construct a new ModelAction with source line number (requires llvm support)
+ *
+ * @param type The type of action
+ * @param order The memory order of this action. A "don't care" for non-ATOMIC
+ * actions (e.g., THREAD_* or MODEL_* actions).
+ * @param loc The location that this action acts upon
+ * @param value (optional) A value associated with the action (e.g., the value
+ * read or written). Defaults to a given macro constant, for debugging purposes.
+ * @param size (optional) The Thread in which this action occurred. If NULL
+ * (default), then a Thread is assigned according to the scheduler.
+ */
+ModelAction::ModelAction(action_type_t type, const char * position, memory_order order, void *loc,
+ uint64_t value, int size) :
+ location(loc),
+ position(position),
reads_from(NULL),
last_fence_release(NULL),
node(NULL),
this->tid = t->get_id();
}
+
+/**
+ * @brief Construct a new ModelAction with source line number (requires llvm support)
+ *
+ * @param type The type of action
+ * @param position The source line number of this atomic operation
+ * @param order The memory order of this action. A "don't care" for non-ATOMIC
+ * actions (e.g., THREAD_* or MODEL_* actions).
+ * @param loc The location that this action acts upon
+ * @param value (optional) A value associated with the action (e.g., the value
+ * read or written). Defaults to a given macro constant, for debugging purposes.
+ * @param thread (optional) The Thread in which this action occurred. If NULL
+ * (default), then a Thread is assigned according to the scheduler.
+ */
+ModelAction::ModelAction(action_type_t type, const char * position, memory_order order,
+ void *loc, uint64_t value, Thread *thread) :
+ location(loc),
+ position(position),
+ reads_from(NULL),
+ last_fence_release(NULL),
+ node(NULL),
+ cv(NULL),
+ value(value),
+ type(type),
+ order(order),
+ original_order(order),
+ seq_number(ACTION_INITIAL_CLOCK)
+{
+ /* References to NULL atomic variables can end up here */
+ ASSERT(loc || type == ATOMIC_FENCE);
+
+ Thread *t = thread ? thread : thread_current();
+ this->tid = t->get_id();
+ // model_print("position: %s\n", position);
+}
+
+
/** @brief ModelAction destructor */
ModelAction::~ModelAction()
{
ASSERT(is_read());
if (reads_from)
return reads_from->get_write_value();
+
return VALUE_NONE; // Only for new actions with no reads-from
}