+ /* FD on which to write the index data. */
+ int index_fd;
+ /* FD on which to read the index data for the viewer. */
+ int read_index_fd;
+
+ char *path_name;
+ char *channel_name;
+ /* on-disk circular buffer of tracefiles */
+ uint64_t tracefile_size;
+ uint64_t tracefile_size_current;
+ uint64_t tracefile_count;
+ uint64_t tracefile_count_current;
+ /* To inform the viewer up to where it can go back in time. */
+ uint64_t oldest_tracefile_id;
+
+ uint64_t total_index_received;
+ struct relay_viewer_stream *viewer_stream;
+ uint64_t last_net_seq_num;
+
+ /*
+ * This node is added to the *control* connection hash table and the
+ * pointer is copied in here so we can access it when deleting this object.
+ * When deleting this, the ctf trace ht MUST NOT be destroyed. This happens
+ * at connection deletion.
+ */
+ struct lttng_ht_node_str ctf_trace_node;
+ struct lttng_ht *ctf_traces_ht;
+
+ /*
+ * To protect from concurrent read/update between the
+ * streaming-side and the viewer-side.
+ * This lock must be held, we reading/updating the
+ * ctf_trace pointer.
+ */
+ pthread_mutex_t lock;
+
+ struct ctf_trace *ctf_trace;
+ /*
+ * If the stream is inactive, this field is updated with the live beacon
+ * timestamp end, when it is active, this field == -1ULL.
+ */
+ uint64_t beacon_ts_end;
+ /*
+ * To protect the update of the close_write_flag and the checks of
+ * the tracefile_count_current.
+ * It is taken before checking whenever we need to know if the
+ * writer and reader are working in the same tracefile.
+ */
+ pthread_mutex_t viewer_stream_rotation_lock;