value = VALUE_TRYFAILED;
}
+/**
+ * @brief Get the value read by this load
+ *
+ * We differentiate this function from ModelAction::get_write_value and
+ * ModelAction::get_value for the purpose of RMW's, which may have both a
+ * 'read' and a 'write' value.
+ *
+ * Note: 'this' must be a load.
+ *
+ * @return The value read by this load
+ */
+uint64_t ModelAction::get_reads_from_value() const
+{
+ ASSERT(is_read());
+ if (reads_from)
+ return reads_from->get_write_value();
+ else if (reads_from_promise)
+ return reads_from_promise->get_value();
+ return VALUE_NONE; /* Only for new actions with no reads-from */
+}
+
+/**
+ * @brief Get the value written by this store
+ *
+ * We differentiate this function from ModelAction::get_reads_from_value and
+ * ModelAction::get_value for the purpose of RMW's, which may have both a
+ * 'read' and a 'write' value.
+ *
+ * Note: 'this' must be a store.
+ *
+ * @return The value written by this store
+ */
+uint64_t ModelAction::get_write_value() const
+{
+ ASSERT(is_write());
+ return value;
+}
+
/** @return The Node associated with this ModelAction */
Node * ModelAction::get_node() const
{
}
uint64_t valuetoprint;
- if (is_read() && reads_from)
- valuetoprint = reads_from->value;
- else if (is_read() && reads_from_promise)
- valuetoprint = reads_from_promise->get_value();
+ if (is_read())
+ valuetoprint = get_reads_from_value();
+ else if (is_write())
+ valuetoprint = get_write_value();
else
valuetoprint = value;
hash ^= reads_from->get_seq_number();
return hash;
}
+
+/**
+ * @brief Checks the NodeStack to see if a ModelAction is in our may-read-from set
+ * @param write The ModelAction to check for
+ * @return True if the ModelAction is found; false otherwise
+ */
+bool ModelAction::may_read_from(const ModelAction *write) const
+{
+ for (int i = 0; i < node->get_read_from_past_size(); i++)
+ if (node->get_read_from_past(i) == write)
+ return true;
+ return false;
+}
+
+/**
+ * @brief Checks the NodeStack to see if a Promise is in our may-read-from set
+ * @param promise The Promise to check for
+ * @return True if the Promise is found; false otherwise
+ */
+bool ModelAction::may_read_from(const Promise *promise) const
+{
+ for (int i = 0; i < node->get_read_from_promise_size(); i++)
+ if (node->get_read_from_promise(i) == promise)
+ return true;
+ return false;
+}