src/common/relayd/relayd.hpp

   1 /*
   2  * Copyright (C) 2012 David Goulet <dgoulet@efficios.com>
   3  *
   4  * SPDX-License-Identifier: GPL-2.0-only
   5  *
   6  */
   7
   8 #ifndef _RELAYD_H
   9 #define _RELAYD_H
  10
  11 #include <common/dynamic-array.hpp>
  12 #include <common/sessiond-comm/relayd.hpp>
  13 #include <common/sessiond-comm/sessiond-comm.hpp>
  14 #include <common/trace-chunk.hpp>
  15
  16 #include <stdbool.h>
  17 #include <unistd.h>
  18
  19 struct relayd_stream_rotation_position {
  20         uint64_t stream_id;
  21         /*
  22          * Packet sequence number of the first packet belonging to the new
  23          * "destination" trace chunk to which the stream is rotating.
  24          *
  25          * Ignored for metadata streams.
  26          */
  27         uint64_t rotate_at_seq_num;
  28 };
  29
  30 int relayd_connect(struct lttcomm_relayd_sock *sock);
  31 int relayd_close(struct lttcomm_relayd_sock *sock);
  32 int relayd_create_session(struct lttcomm_relayd_sock *rsock,
  33                           uint64_t *relayd_session_id,
  34                           const char *session_name,
  35                           const char *hostname,
  36                           const char *base_path,
  37                           int session_live_timer,
  38                           unsigned int snapshot,
  39                           uint64_t sessiond_session_id,
  40                           const lttng_uuid& sessiond_uuid,
  41                           const uint64_t *current_chunk_id,
  42                           time_t creation_time,
  43                           bool session_name_contains_creation_time,
  44                           char *output_path);
  45 int relayd_add_stream(struct lttcomm_relayd_sock *sock,
  46                       const char *channel_name,
  47                       const char *domain_name,
  48                       const char *pathname,
  49                       uint64_t *stream_id,
  50                       uint64_t tracefile_size,
  51                       uint64_t tracefile_count,
  52                       struct lttng_trace_chunk *trace_chunk);
  53 int relayd_streams_sent(struct lttcomm_relayd_sock *rsock);
  54 int relayd_send_close_stream(struct lttcomm_relayd_sock *sock,
  55                              uint64_t stream_id,
  56                              uint64_t last_net_seq_num);
  57 int relayd_version_check(struct lttcomm_relayd_sock *sock);
  58 int relayd_start_data(struct lttcomm_relayd_sock *sock);
  59 int relayd_send_metadata(struct lttcomm_relayd_sock *sock, size_t len);
  60 int relayd_send_data_hdr(struct lttcomm_relayd_sock *sock,
  61                          struct lttcomm_relayd_data_hdr *hdr,
  62                          size_t size);
  63 int relayd_data_pending(struct lttcomm_relayd_sock *sock,
  64                         uint64_t stream_id,
  65                         uint64_t last_net_seq_num);
  66 int relayd_quiescent_control(struct lttcomm_relayd_sock *sock, uint64_t metadata_stream_id);
  67 int relayd_begin_data_pending(struct lttcomm_relayd_sock *sock, uint64_t id);
  68 int relayd_end_data_pending(struct lttcomm_relayd_sock *sock,
  69                             uint64_t id,
  70                             unsigned int *is_data_inflight);
  71 int relayd_send_index(struct lttcomm_relayd_sock *rsock,
  72                       struct ctf_packet_index *index,
  73                       uint64_t relay_stream_id,
  74                       uint64_t net_seq_num);
  75 int relayd_reset_metadata(struct lttcomm_relayd_sock *rsock, uint64_t stream_id, uint64_t version);
  76 /* `positions` is an array of `stream_count` relayd_stream_rotation_position. */
  77 int relayd_rotate_streams(struct lttcomm_relayd_sock *sock,
  78                           unsigned int stream_count,
  79                           const uint64_t *new_chunk_id,
  80                           const struct relayd_stream_rotation_position *positions);
  81 int relayd_create_trace_chunk(struct lttcomm_relayd_sock *sock, struct lttng_trace_chunk *chunk);
  82 int relayd_close_trace_chunk(struct lttcomm_relayd_sock *sock,
  83                              struct lttng_trace_chunk *chunk,
  84                              char *path);
  85 int relayd_trace_chunk_exists(struct lttcomm_relayd_sock *sock,
  86                               uint64_t chunk_id,
  87                               bool *chunk_exists);
  88 int relayd_get_configuration(struct lttcomm_relayd_sock *sock,
  89                              uint64_t query_flags,
  90                              uint64_t *result_flags);
  91
  92 #endif /* _RELAYD_H */