ir: add bt_ctf_trace_get_stream_class_by_id()

[babeltrace.git] / include / babeltrace / ctf-ir / trace.h

diff --git a/include/babeltrace/ctf-ir/trace.h b/include/babeltrace/ctf-ir/trace.h
index d85a4bead08185a57d2b01ac2d70c1a38766defc..29b60980cac2bbb37d9c52058517b27c419ca860 100644 (file)
--- a/include/babeltrace/ctf-ir/trace.h
+++ b/include/babeltrace/ctf-ir/trace.h
@@ -264,6 +264,17 @@ extern int bt_ctf_trace_get_stream_class_count(struct bt_ctf_trace *trace);
 extern struct bt_ctf_stream_class *bt_ctf_trace_get_stream_class(
                struct bt_ctf_trace *trace, int index);
 
+/*
+ * bt_ctf_trace_get_stream_class_by_id: get a trace's stream class by ID.
+ *
+ * @param trace Trace instance.
+ * @param index ID of the stream class in the given trace.
+ *
+ * Return a stream class on success, NULL on error.
+ */
+extern struct bt_ctf_stream_class *bt_ctf_trace_get_stream_class_by_id(
+               struct bt_ctf_trace *trace, uint32_t id);
+
 /*
  * bt_ctf_trace_get_clock_by_name: get a trace's clock by name
  *