LTTNG_CONSUMER_SNAPSHOT_CHANNEL,
LTTNG_CONSUMER_SNAPSHOT_METADATA,
LTTNG_CONSUMER_STREAMS_SENT,
+ LTTNG_CONSUMER_CLEAR_QUIESCENT_CHANNEL,
};
/* State of each fd in consumer */
/* Timer value in usec for live streaming. */
unsigned int live_timer_interval;
+
+ int *stream_fds;
+ int nr_stream_fds;
+ char root_shm_path[PATH_MAX];
+ char shm_path[PATH_MAX];
};
/*
int shm_fd_is_copy;
int data_read;
int hangup_flush_done;
+
+ /*
+ * Whether the stream is in a "complete" state (e.g. it does not have a
+ * partially written sub-buffer.
+ *
+ * Initialized to "false" on stream creation (first packet is empty).
+ *
+ * The various transitions of the quiescent state are:
+ * - On "start" tracing: set to false, since the stream is not
+ * "complete".
+ * - On "stop" tracing: if !quiescent -> flush FINAL (update
+ * timestamp_end), and set to true; the stream has entered a
+ * complete/quiescent state.
+ * - On "destroy" or stream/application hang-up: if !quiescent ->
+ * flush FINAL, and set to true.
+ *
+ * NOTE: Update and read are protected by the stream lock.
+ */
+ bool quiescent;
+
+ /*
+ * metadata_timer_lock protects flags waiting_on_metadata and
+ * missed_metadata_flush.
+ */
+ pthread_mutex_t metadata_timer_lock;
+ /*
+ * Flag set when awaiting metadata to be pushed. Used in the
+ * timer thread to skip waiting on the stream (and stream lock) to
+ * ensure we can proceed to flushing metadata in live mode.
+ */
+ bool waiting_on_metadata;
+ /* Raised when a timer misses a metadata flush. */
+ bool missed_metadata_flush;
+
enum lttng_event_output output;
/* Maximum subbuffer size. */
unsigned long max_sb_size;
uint64_t tracefile_count,
uint64_t session_id_per_pid,
unsigned int monitor,
- unsigned int live_timer_interval);
+ unsigned int live_timer_interval,
+ const char *root_shm_path,
+ const char *shm_path);
void consumer_del_stream(struct lttng_consumer_stream *stream,
struct lttng_ht *ht);
void consumer_del_metadata_stream(struct lttng_consumer_stream *stream,
void notify_thread_del_channel(struct lttng_consumer_local_data *ctx,
uint64_t key);
void consumer_destroy_relayd(struct consumer_relayd_sock_pair *relayd);
-unsigned long consumer_get_consumed_maxsize(unsigned long consumed_pos,
- unsigned long produced_pos, uint64_t max_stream_size);
+unsigned long consumer_get_consume_start_pos(unsigned long consumed_pos,
+ unsigned long produced_pos, uint64_t nb_packets_per_stream,
+ uint64_t max_sb_size);
int consumer_add_data_stream(struct lttng_consumer_stream *stream);
void consumer_del_stream_for_data(struct lttng_consumer_stream *stream);
int consumer_add_metadata_stream(struct lttng_consumer_stream *stream);