*/
struct stream_list streams;
- /*
- * List of streams in no monitor mode for this channel. Used ONLY for
- * snapshots recording.
- */
- struct stream_list stream_no_monitor_list;
-
/*
* Set if the channel is metadata. We keep a reference to the stream
* because we have to flush data once pushed by the session daemon. For a
* monitor list of the channel.
*/
unsigned int monitor;
+
+ /*
+ * Channel lock.
+ *
+ * This is nested INSIDE the consumer data lock.
+ * This is nested OUTSIDE the metadata cache lock.
+ * This is nested OUTSIDE stream lock.
+ * This is nested OUTSIDE consumer_relayd_sock_pair lock.
+ */
+ pthread_mutex_t lock;
};
/*
gid_t gid;
/* Network sequence number. Indicating on which relayd socket it goes. */
uint64_t net_seq_idx;
+ /*
+ * Indicate if this stream was successfully sent to a relayd. This is set
+ * after the refcount of the relayd is incremented and is checked when the
+ * stream is closed before decrementing the refcount in order to avoid an
+ * unbalanced state.
+ */
+ unsigned int sent_to_relayd;
+
/* Identify if the stream is the metadata */
unsigned int metadata_flag;
/* Used when the stream is set for network streaming */
*
* This is nested INSIDE the consumer_data lock.
* This is nested INSIDE the metadata cache lock.
+ * This is nested INSIDE the channel lock.
* This is nested OUTSIDE consumer_relayd_sock_pair lock.
*/
pthread_mutex_t lock;
/* On-disk circular buffer */
uint64_t tracefile_size_current;
uint64_t tracefile_count_current;
-
- /* Node for the no monitor stream list in a channel. */
- struct cds_list_head no_monitor_node;
+ /*
+ * Monitor or not the streams of this channel meaning this indicates if the
+ * streams should be sent to the data/metadata thread or added to the no
+ * monitor list of the channel.
+ */
+ unsigned int monitor;
+ /*
+ * Indicate if the stream is globally visible meaning that it has been
+ * added to the multiple hash tables. If *not* set, NO lock should be
+ * acquired in the destroy path.
+ */
+ unsigned int globally_visible;
+ /*
+ * Pipe to wake up the metadata poll thread when the UST metadata
+ * cache is updated.
+ */
+ int ust_metadata_poll_pipe[2];
+ /*
+ * How much metadata was read from the metadata cache and sent
+ * to the channel.
+ */
+ uint64_t ust_metadata_pushed;
};
/*
* == 0 (success, FD is left to library)
* < 0 (error)
*/
- int (*on_update_stream)(int sessiond_key, uint32_t state);
+ int (*on_update_stream)(uint64_t sessiond_key, uint32_t state);
enum lttng_consumer_type type;
/* socket to communicate errors with sessiond */
int consumer_error_socket;
uint64_t session_id,
int cpu,
int *alloc_ret,
- enum consumer_channel_type type);
+ enum consumer_channel_type type,
+ unsigned int monitor);
struct lttng_consumer_channel *consumer_allocate_channel(uint64_t key,
uint64_t session_id,
const char *pathname,
struct consumer_relayd_sock_pair *consumer_allocate_relayd_sock_pair(
uint64_t net_seq_idx);
struct consumer_relayd_sock_pair *consumer_find_relayd(uint64_t key);
+int consumer_send_relayd_stream(struct lttng_consumer_stream *stream, char *path);
+void close_relayd_stream(struct lttng_consumer_stream *stream);
struct lttng_consumer_channel *consumer_find_channel(uint64_t key);
int consumer_handle_stream_before_relayd(struct lttng_consumer_stream *stream,
size_t data_size);
struct lttng_consumer_local_data *ctx),
int (*recv_channel)(struct lttng_consumer_channel *channel),
int (*recv_stream)(struct lttng_consumer_stream *stream),
- int (*update_stream)(int sessiond_key, uint32_t state));
+ int (*update_stream)(uint64_t sessiond_key, uint32_t state));
void lttng_consumer_destroy(struct lttng_consumer_local_data *ctx);
ssize_t lttng_consumer_on_read_subbuffer_mmap(
struct lttng_consumer_local_data *ctx,
int consumer_add_relayd_socket(uint64_t net_seq_idx, int sock_type,
struct lttng_consumer_local_data *ctx, int sock,
struct pollfd *consumer_sockpoll, struct lttcomm_relayd_sock *relayd_sock,
- unsigned int sessiond_id);
+ uint64_t sessiond_id);
void consumer_flag_relayd_for_destroy(
struct consumer_relayd_sock_pair *relayd);
int consumer_data_pending(uint64_t id);
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);
#endif /* LIB_CONSUMER_H */