/* Iterator over a live stream. */
struct lttng_live_stream_iterator {
+ bt_logging_level log_level;
+ bt_self_component *self_comp;
+
/* Owned by this. */
bt_stream *stream;
/* Owned by this. */
GString *name;
+
+ bool has_stream_hung_up;
};
struct lttng_live_metadata {
+ bt_logging_level log_level;
+ bt_self_component *self_comp;
+
/* Weak reference. */
struct lttng_live_trace *trace;
uint64_t stream_id;
/* Weak reference. */
struct ctf_metadata_decoder *decoder;
-
- bool closed;
};
struct lttng_live_trace {
+ bt_logging_level log_level;
+ bt_self_component *self_comp;
+
/* Back reference to session. */
struct lttng_live_session *session;
};
struct lttng_live_session {
+ bt_logging_level log_level;
+ bt_self_component *self_comp;
+
/* Weak reference. */
struct lttng_live_msg_iter *lttng_live_msg_iter;
* A component instance is an iterator on a single session.
*/
struct lttng_live_component {
+ bt_logging_level log_level;
+
/* Weak reference. */
- bt_self_component_source *self_comp;
+ bt_self_component *self_comp;
struct {
GString *url;
};
struct lttng_live_msg_iter {
+ bt_logging_level log_level;
+ bt_self_component *self_comp;
+
/* Weak reference. */
struct lttng_live_component *lttng_live_comp;
LTTNG_LIVE_ITERATOR_STATUS_UNSUPPORTED = -4,
};
-bt_self_component_status lttng_live_component_init(
+bt_component_class_initialize_method_status lttng_live_component_init(
bt_self_component_source *self_comp,
+ bt_self_component_source_configuration *config,
const bt_value *params, void *init_method_data);
-bt_query_status lttng_live_query(
+bt_component_class_query_method_status lttng_live_query(
bt_self_component_class_source *comp_class,
- const bt_query_executor *query_exec,
+ bt_private_query_executor *priv_query_exec,
const char *object, const bt_value *params,
- const bt_value **result);
+ void *method_data, const bt_value **result);
void lttng_live_component_finalize(bt_self_component_source *component);
-bt_self_message_iterator_status lttng_live_msg_iter_next(
+bt_component_class_message_iterator_next_method_status lttng_live_msg_iter_next(
bt_self_message_iterator *iterator,
bt_message_array_const msgs, uint64_t capacity,
uint64_t *count);
-bt_self_message_iterator_status lttng_live_msg_iter_init(
+bt_component_class_message_iterator_initialize_method_status lttng_live_msg_iter_init(
bt_self_message_iterator *self_msg_it,
+ bt_self_message_iterator_configuration *config,
bt_self_component_source *self_comp,
bt_self_component_port_output *self_port);
const char *hostname,
const char *session_name);
-ssize_t lttng_live_get_one_metadata_packet(struct lttng_live_trace *trace,
- FILE *fp);
+enum lttng_live_get_one_metadata_status {
+ /* The end of the metadata stream was reached. */
+ LTTNG_LIVE_GET_ONE_METADATA_STATUS_END = 1,
+ /* One metadata packet was received and written to file. */
+ LTTNG_LIVE_GET_ONE_METADATA_STATUS_OK = 0,
+ /* The metadata stream was not found on the relay. */
+ LTTNG_LIVE_GET_ONE_METADATA_STATUS_CLOSED = -1,
+ /*
+ * A critical error occurred when contacting the relay or while
+ * handling its response.
+ */
+ LTTNG_LIVE_GET_ONE_METADATA_STATUS_ERROR = -2,
+};
+
+/*
+ * lttng_live_get_one_metadata_packet() asks the Relay Daemon for new metadata.
+ * If new metadata is received, the function writes it to the provided file
+ * handle and updates the reply_len output parameter. This function should be
+ * called in loop until _END status is received to ensure all metadata is
+ * written to the file.
+ */
+enum lttng_live_get_one_metadata_status lttng_live_get_one_metadata_packet(
+ struct lttng_live_trace *trace, FILE *fp, size_t *reply_len);
+
enum lttng_live_iterator_status lttng_live_get_next_index(
struct lttng_live_msg_iter *lttng_live_msg_iter,
struct lttng_live_stream_iterator *stream,
struct lttng_live_session *session, uint64_t trace_id);
void lttng_live_need_new_streams(struct lttng_live_msg_iter *lttng_live_msg_iter);
-bool lttng_live_graph_is_canceled(struct lttng_live_component *lttng_live);
+bool lttng_live_graph_is_canceled(struct lttng_live_msg_iter *msg_iter);
#endif /* BABELTRACE_PLUGIN_CTF_LTTNG_LIVE_H */