Fix: consumerd: user space metadata not regenerated

[lttng-tools.git] / src / common / consumer / consumer-stream.h

diff --git a/src/common/consumer/consumer-stream.h b/src/common/consumer/consumer-stream.h
index eb00dac78849d62df66911b8423f4687ea4a4f5d..50e402fe200f1c90f0e06c62622c12f6f29b38d5 100644 (file)
--- a/src/common/consumer/consumer-stream.h
+++ b/src/common/consumer/consumer-stream.h
@@ -111,4 +111,23 @@ int consumer_stream_rotate_output_files(struct lttng_consumer_stream *stream);
  */
 bool consumer_stream_is_deleted(struct lttng_consumer_stream *stream);
 
+/*
+ * Enable metadata bucketization. This must only be enabled if the tracer
+ * provides a reliable metadata `coherent` flag.
+ *
+ * This must be called on initialization before any subbuffer is consumed.
+ */
+int consumer_stream_enable_metadata_bucketization(
+               struct lttng_consumer_stream *stream);
+
+/*
+ * Set the version of a metadata stream (i.e. following a metadata
+ * regeneration).
+ *
+ * Changing the version of a metadata stream will cause any bucketized metadata
+ * to be discarded and will mark the metadata stream for future `reset`.
+ */
+void consumer_stream_metadata_set_version(
+               struct lttng_consumer_stream *stream, uint64_t new_version);
+
 #endif /* LTTNG_CONSUMER_STREAM_H */