X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-relayd%2Flttng-relayd.h;h=f0c1abfee492356fb7052643a99e0ccd870dcdd0;hp=6dfc803236885bb1848f5889b75bf3207b908732;hb=2a174661a1e0ab551b41ff1cae7191688525fc1f;hpb=2f8f53af90479595d530f8f02e71dd0b9fb810ee diff --git a/src/bin/lttng-relayd/lttng-relayd.h b/src/bin/lttng-relayd/lttng-relayd.h index 6dfc80323..f0c1abfee 100644 --- a/src/bin/lttng-relayd/lttng-relayd.h +++ b/src/bin/lttng-relayd/lttng-relayd.h @@ -46,92 +46,6 @@ enum connection_type { RELAY_VIEWER_NOTIFICATION = 4, }; -/* - * When we receive a stream, it gets stored in a list (on a per connection - * basis) until we have all the streams of the same channel and the metadata - * associated with it, then it gets flagged with viewer_ready. - */ -struct relay_stream_recv_handle { - uint64_t id; /* stream handle */ - struct cds_list_head node; -}; - -/* - * Represents a stream in the relay - */ -struct relay_stream { - uint64_t stream_handle; - uint64_t prev_seq; /* previous data sequence number encountered */ - struct lttng_ht_node_ulong stream_n; - struct relay_session *session; - struct rcu_head rcu_node; - int fd; - /* FD on which to write the index data. */ - int index_fd; - /* FD on which to read the index data for the viewer. */ - int read_index_fd; - - char *path_name; - char *channel_name; - /* on-disk circular buffer of tracefiles */ - uint64_t tracefile_size; - uint64_t tracefile_size_current; - uint64_t tracefile_count; - uint64_t tracefile_count_current; - /* To inform the viewer up to where it can go back in time. */ - uint64_t oldest_tracefile_id; - - uint64_t total_index_received; - uint64_t last_net_seq_num; - - /* - * This node is added to the *control* connection hash table and the - * pointer is copied in here so we can access it when deleting this object. - * When deleting this, the ctf trace ht MUST NOT be destroyed. This happens - * at connection deletion. - */ - struct lttng_ht_node_str ctf_trace_node; - struct lttng_ht *ctf_traces_ht; - - /* - * To protect from concurrent read/update between the - * streaming-side and the viewer-side. - * This lock must be held, we reading/updating the - * ctf_trace pointer. - */ - pthread_mutex_t lock; - - struct ctf_trace *ctf_trace; - /* - * If the stream is inactive, this field is updated with the live beacon - * timestamp end, when it is active, this field == -1ULL. - */ - uint64_t beacon_ts_end; - /* - * To protect the update of the close_write_flag and the checks of - * the tracefile_count_current. - * It is taken before checking whenever we need to know if the - * writer and reader are working in the same tracefile. - */ - pthread_mutex_t viewer_stream_rotation_lock; - - /* Information telling us when to close the stream */ - unsigned int close_flag:1; - /* Indicate if the stream was initialized for a data pending command. */ - unsigned int data_pending_check_done:1; - unsigned int metadata_flag:1; - /* - * To detect when we start overwriting old data, it is used to - * update the oldest_tracefile_id. - */ - unsigned int tracefile_overwrite:1; - /* - * Can this stream be used by a viewer or are we waiting for additional - * information. - */ - unsigned int viewer_ready:1; -}; - /* * Internal structure to map a socket with the corresponding session. * A hashtable indexed on the socket FD is used for the lookups. @@ -146,7 +60,6 @@ struct relay_command { /* protocol version to use for this session */ uint32_t major; uint32_t minor; - struct lttng_ht *ctf_traces_ht; /* indexed by path name */ uint64_t session_id; struct cds_list_head recv_head; unsigned int version_check_done:1; @@ -158,7 +71,13 @@ struct relay_local_data { extern char *opt_output_path; +/* + * Contains stream indexed by ID. This is important since many commands lookup + * streams only by ID thus also keeping them in this hash table makes the + * search O(1) instead of iterating over the ctf_traces_ht of the session. + */ extern struct lttng_ht *relay_streams_ht; + extern struct lttng_ht *viewer_streams_ht; extern struct lttng_ht *indexes_ht; @@ -166,9 +85,6 @@ extern const char *tracing_group_name; extern const char * const config_section_name; -extern int thread_quit_pipe[2]; - -struct relay_stream *relay_stream_find_by_id(uint64_t stream_id); void lttng_relay_notify_ready(void); #endif /* LTTNG_RELAYD_H */