/* pause, delete, active depending on fd state */
LTTNG_CONSUMER_UPDATE_STREAM,
/* inform the consumer to quit when all fd has hang up */
- LTTNG_CONSUMER_STOP,
+ LTTNG_CONSUMER_STOP, /* deprecated */
LTTNG_CONSUMER_ADD_RELAYD_SOCKET,
/* Inform the consumer to kill a specific relayd connection */
LTTNG_CONSUMER_DESTROY_RELAYD,
/* 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 index_fd;
+ /*
+ * Local pipe to extract data when using splice.
+ */
+ int splice_pipe[2];
+
/*
* Rendez-vous point between data and metadata stream in live mode.
*/
pthread_cond_t metadata_rdv;
pthread_mutex_t metadata_rdv_lock;
+
+ /* Indicate if the stream still has some data to be read. */
+ unsigned int has_data:1;
};
/*
/* socket to exchange commands with sessiond */
char *consumer_command_sock_path;
/* communication with splice */
- int consumer_thread_pipe[2];
int consumer_channel_pipe[2];
- int consumer_splice_metadata_pipe[2];
/* Data stream poll thread pipe. To transfer data stream to the thread */
struct lttng_pipe *consumer_data_pipe;
+
+ /*
+ * Data thread use that pipe to catch wakeup from read subbuffer that
+ * detects that there is still data to be read for the stream encountered.
+ * Before doing so, the stream is flagged to indicate that there is still
+ * data to be read.
+ *
+ * Both pipes (read/write) are owned and used inside the data thread.
+ */
+ struct lttng_pipe *consumer_wakeup_pipe;
+ /* Indicate if the wakeup thread has been notified. */
+ unsigned int has_wakeup:1;
+
/* to let the signal handler wake up the fd receiver thread */
int consumer_should_quit[2];
/* Metadata poll thread pipe. Transfer metadata stream to it */
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);