* stream class is _always_ frozen.
*/
int valid;
+
+ /*
+ * Unique clock class mapped to any field type within this
+ * stream class, including all the stream class's event class
+ * field types. This is only set if the stream class is frozen.
+ *
+ * If the stream class is frozen and this is still NULL, it is
+ * still possible that it becomes non-NULL because
+ * bt_stream_class_add_event_class() can add an event class
+ * containing a field type mapped to some clock class. In this
+ * case, this is the mapped clock class, and at this point, both
+ * the new event class and the stream class are frozen, so the
+ * next added event classes are expected to contain field types
+ * which only map to this specific clock class.
+ *
+ * If this is a CTF writer stream class, then this is the
+ * backing clock class of the `clock` member above.
+ */
+ struct bt_clock_class *clock_class;
};
BT_HIDDEN
struct bt_field_type *packet_context_type,
struct bt_field_type *event_header_type);
+BT_HIDDEN
+int bt_stream_class_validate_single_clock_class(
+ struct bt_stream_class *stream_class,
+ struct bt_clock_class **expected_clock_class);
+
static inline
struct bt_trace *bt_stream_class_borrow_trace(
struct bt_stream_class *stream_class)