| 1 | /* |
| 2 | * Copyright (C) 2012 - David Goulet <dgoulet@efficios.com> |
| 3 | * |
| 4 | * This program is free software; you can redistribute it and/or modify it |
| 5 | * under the terms of the GNU General Public License, version 2 only, as |
| 6 | * published by the Free Software Foundation. |
| 7 | * |
| 8 | * This program is distributed in the hope that it will be useful, but WITHOUT |
| 9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for |
| 11 | * more details. |
| 12 | * |
| 13 | * You should have received a copy of the GNU General Public License along with |
| 14 | * this program; if not, write to the Free Software Foundation, Inc., 51 |
| 15 | * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 16 | */ |
| 17 | |
| 18 | #ifndef _RELAYD_H |
| 19 | #define _RELAYD_H |
| 20 | |
| 21 | #include <unistd.h> |
| 22 | #include <stdbool.h> |
| 23 | |
| 24 | #include <common/sessiond-comm/relayd.h> |
| 25 | #include <common/sessiond-comm/sessiond-comm.h> |
| 26 | #include <common/trace-chunk.h> |
| 27 | #include <common/dynamic-array.h> |
| 28 | |
| 29 | struct relayd_stream_rotation_position { |
| 30 | uint64_t stream_id; |
| 31 | /* |
| 32 | * Sequence number of the first packet belonging to the new |
| 33 | * "destination" trace chunk to which the stream is rotating. |
| 34 | * |
| 35 | * Ignored for metadata streams. |
| 36 | */ |
| 37 | uint64_t rotate_at_seq_num; |
| 38 | }; |
| 39 | |
| 40 | int relayd_connect(struct lttcomm_relayd_sock *sock); |
| 41 | int relayd_close(struct lttcomm_relayd_sock *sock); |
| 42 | int relayd_create_session(struct lttcomm_relayd_sock *rsock, |
| 43 | uint64_t *relayd_session_id, |
| 44 | const char *session_name, const char *hostname, |
| 45 | const char *base_path, int session_live_timer, |
| 46 | unsigned int snapshot, uint64_t sessiond_session_id, |
| 47 | const lttng_uuid sessiond_uuid, |
| 48 | const uint64_t *current_chunk_id, |
| 49 | time_t creation_time, bool session_name_contains_creation_time, |
| 50 | char *output_path); |
| 51 | int relayd_add_stream(struct lttcomm_relayd_sock *sock, const char *channel_name, |
| 52 | const char *pathname, uint64_t *stream_id, |
| 53 | uint64_t tracefile_size, uint64_t tracefile_count, |
| 54 | struct lttng_trace_chunk *trace_chunk); |
| 55 | int relayd_streams_sent(struct lttcomm_relayd_sock *rsock); |
| 56 | int relayd_send_close_stream(struct lttcomm_relayd_sock *sock, uint64_t stream_id, |
| 57 | uint64_t last_net_seq_num); |
| 58 | int relayd_version_check(struct lttcomm_relayd_sock *sock); |
| 59 | int relayd_start_data(struct lttcomm_relayd_sock *sock); |
| 60 | int relayd_send_metadata(struct lttcomm_relayd_sock *sock, size_t len); |
| 61 | int relayd_send_data_hdr(struct lttcomm_relayd_sock *sock, |
| 62 | struct lttcomm_relayd_data_hdr *hdr, size_t size); |
| 63 | int relayd_data_pending(struct lttcomm_relayd_sock *sock, uint64_t stream_id, |
| 64 | uint64_t last_net_seq_num); |
| 65 | int relayd_quiescent_control(struct lttcomm_relayd_sock *sock, |
| 66 | 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, uint64_t id, |
| 69 | unsigned int *is_data_inflight); |
| 70 | int relayd_send_index(struct lttcomm_relayd_sock *rsock, |
| 71 | struct ctf_packet_index *index, uint64_t relay_stream_id, |
| 72 | uint64_t net_seq_num); |
| 73 | int relayd_reset_metadata(struct lttcomm_relayd_sock *rsock, |
| 74 | uint64_t stream_id, uint64_t version); |
| 75 | /* `positions` is an array of `stream_count` relayd_stream_rotation_position. */ |
| 76 | int relayd_rotate_streams(struct lttcomm_relayd_sock *sock, |
| 77 | unsigned int stream_count, const uint64_t *new_chunk_id, |
| 78 | const struct relayd_stream_rotation_position *positions); |
| 79 | int relayd_create_trace_chunk(struct lttcomm_relayd_sock *sock, |
| 80 | struct lttng_trace_chunk *chunk); |
| 81 | int relayd_close_trace_chunk(struct lttcomm_relayd_sock *sock, |
| 82 | struct lttng_trace_chunk *chunk, |
| 83 | char *path); |
| 84 | int relayd_trace_chunk_exists(struct lttcomm_relayd_sock *sock, |
| 85 | uint64_t chunk_id, bool *chunk_exists); |
| 86 | |
| 87 | #endif /* _RELAYD_H */ |