src/common/relayd/relayd.h

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