X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=include%2Flttng%2Fust-ctl.h;h=932940babf393304964e039a0cc5256aa50d96c5;hb=beca55a1aa4ff272188d7c37c19eb0540f811c8b;hp=57758edb19d15efe5032a5eebf4e4d3e1c1367b4;hpb=db56acaff475812dfd774a52b3d54eae5c115315;p=lttng-ust.git

diff --git a/include/lttng/ust-ctl.h b/include/lttng/ust-ctl.h
index 57758edb..932940ba 100644
--- a/include/lttng/ust-ctl.h
+++ b/include/lttng/ust-ctl.h
@@ -242,8 +242,15 @@ int ustctl_put_subbuf(struct ustctl_consumer_stream *stream);
 
 void ustctl_flush_buffer(struct ustctl_consumer_stream *stream,
 		int producer_active);
+void ustctl_clear_buffer(struct ustctl_consumer_stream *stream);
 
 /* index */
+
+/*
+ * Getters which need to be used on the current packet (between get/put
+ * or get_next/put_next.
+ */
+
 int ustctl_get_timestamp_begin(struct ustctl_consumer_stream *stream,
 		uint64_t *timestamp_begin);
 int ustctl_get_timestamp_end(struct ustctl_consumer_stream *stream,
@@ -254,15 +261,26 @@ int ustctl_get_content_size(struct ustctl_consumer_stream *stream,
 	uint64_t *content_size);
 int ustctl_get_packet_size(struct ustctl_consumer_stream *stream,
 	uint64_t *packet_size);
-int ustctl_get_stream_id(struct ustctl_consumer_stream *stream,
-		uint64_t *stream_id);
-int ustctl_get_current_timestamp(struct ustctl_consumer_stream *stream,
-		uint64_t *ts);
 int ustctl_get_sequence_number(struct ustctl_consumer_stream *stream,
 		uint64_t *seq);
+
+/*
+ * Getter returning state invariant for the stream, which can be used
+ * without "get" operation.
+ */
+
+int ustctl_get_stream_id(struct ustctl_consumer_stream *stream,
+		uint64_t *stream_id);
 int ustctl_get_instance_id(struct ustctl_consumer_stream *stream,
 		uint64_t *id);
 
+/*
+ * Getter returning the current timestamp as perceived from the
+ * tracer.
+ */
+int ustctl_get_current_timestamp(struct ustctl_consumer_stream *stream,
+		uint64_t *ts);
+
 /* returns whether UST has perf counters support. */
 int ustctl_has_perf_counters(void);