Implement consumer ring buffer position sampling

[lttng-tools.git] / src / bin / lttng-sessiond / consumer.h

diff --git a/src/bin/lttng-sessiond/consumer.h b/src/bin/lttng-sessiond/consumer.h
index 47e59c7c28de86a8e550df650bd705b5dc9de9f3..77bc2b1f12b8cf6c08a7fc402a953be4ce86a296 100644 (file)
--- a/src/bin/lttng-sessiond/consumer.h
+++ b/src/bin/lttng-sessiond/consumer.h
@@ -93,6 +93,11 @@ struct consumer_data {
        int err_sock;
        /* These two sockets uses the cmd_unix_sock_path. */
        int cmd_sock;
+       /*
+        * Write-end of the channel monitoring pipe to be passed to the
+        * consumer.
+        */
+       int channel_monitor_pipe;
        /*
         * The metadata socket object is handled differently and only created
         * locally in this object thus it's the only reference available in the
@@ -153,6 +158,9 @@ struct consumer_output {
         * index. The relayd sockets are index with it on the consumer side.
         */
        uint64_t net_seq_index;
+       /* Store the relay protocol in use if the session is remote. */
+       uint32_t relay_major_version;
+       uint32_t relay_minor_version;
 
        /*
         * Subdirectory path name used for both local and network consumer.
@@ -211,6 +219,8 @@ int consumer_send_relayd_socket(struct consumer_socket *consumer_sock,
                struct lttcomm_relayd_sock *rsock, struct consumer_output *consumer,
                enum lttng_stream_type type, uint64_t session_id,
                char *session_name, char *hostname, int session_live_timer);
+int consumer_send_channel_monitor_pipe(struct consumer_socket *consumer_sock,
+               int pipe);
 int consumer_send_destroy_relayd(struct consumer_socket *sock,
                struct consumer_output *consumer);
 int consumer_recv_status_reply(struct consumer_socket *sock);
@@ -229,6 +239,7 @@ void consumer_init_ask_channel_comm_msg(struct lttcomm_consumer_msg *msg,
                unsigned int switch_timer_interval,
                unsigned int read_timer_interval,
                unsigned int live_timer_interval,
+               unsigned int monitor_timer_interval,
                int output,
                int type,
                uint64_t session_id,
@@ -270,7 +281,8 @@ void consumer_init_channel_comm_msg(struct lttcomm_consumer_msg *msg,
                uint64_t tracefile_size,
                uint64_t tracefile_count,
                unsigned int monitor,
-               unsigned int live_timer_interval);
+               unsigned int live_timer_interval,
+               unsigned int monitor_timer_interval);
 int consumer_is_data_pending(uint64_t session_id,
                struct consumer_output *consumer);
 int consumer_close_metadata(struct consumer_socket *socket,
@@ -279,8 +291,13 @@ int consumer_setup_metadata(struct consumer_socket *socket,
                uint64_t metadata_key);
 int consumer_push_metadata(struct consumer_socket *socket,
                uint64_t metadata_key, char *metadata_str, size_t len,
-               size_t target_offset);
+               size_t target_offset, uint64_t version);
 int consumer_flush_channel(struct consumer_socket *socket, uint64_t key);
+int consumer_clear_quiescent_channel(struct consumer_socket *socket, uint64_t key);
+int consumer_get_discarded_events(uint64_t session_id, uint64_t channel_key,
+               struct consumer_output *consumer, uint64_t *discarded);
+int consumer_get_lost_packets(uint64_t session_id, uint64_t channel_key,
+               struct consumer_output *consumer, uint64_t *lost);
 
 /* Snapshot command. */
 int consumer_snapshot_channel(struct consumer_socket *socket, uint64_t key,