relayd: Implement get_configuration relayd protocol command
[lttng-tools.git] / src / common / relayd / relayd.h
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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>
c35f9726 22#include <stdbool.h>
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23
24#include <common/sessiond-comm/relayd.h>
25#include <common/sessiond-comm/sessiond-comm.h>
d2956687 26#include <common/trace-chunk.h>
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27#include <common/dynamic-array.h>
28
29struct relayd_stream_rotation_position {
30 uint64_t stream_id;
31 /*
0f83d1cc 32 * Packet sequence number of the first packet belonging to the new
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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};
00e2e675 39
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40int relayd_connect(struct lttcomm_relayd_sock *sock);
41int relayd_close(struct lttcomm_relayd_sock *sock);
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42int relayd_create_session(struct lttcomm_relayd_sock *rsock,
43 uint64_t *relayd_session_id,
44 const char *session_name, const char *hostname,
6fa5fe7c 45 const char *base_path, int session_live_timer,
fb9a95c4 46 unsigned int snapshot, uint64_t sessiond_session_id,
1e791a74 47 const lttng_uuid sessiond_uuid,
db1da059 48 const uint64_t *current_chunk_id,
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49 time_t creation_time, bool session_name_contains_creation_time,
50 char *output_path);
6151a90f 51int relayd_add_stream(struct lttcomm_relayd_sock *sock, const char *channel_name,
5da88b0f 52 const char *domain_name, const char *pathname, uint64_t *stream_id,
0b50e4b3 53 uint64_t tracefile_size, uint64_t tracefile_count,
d2956687 54 struct lttng_trace_chunk *trace_chunk);
a4baae1b 55int relayd_streams_sent(struct lttcomm_relayd_sock *rsock);
6151a90f 56int relayd_send_close_stream(struct lttcomm_relayd_sock *sock, uint64_t stream_id,
173af62f 57 uint64_t last_net_seq_num);
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58int relayd_version_check(struct lttcomm_relayd_sock *sock);
59int relayd_start_data(struct lttcomm_relayd_sock *sock);
60int relayd_send_metadata(struct lttcomm_relayd_sock *sock, size_t len);
61int relayd_send_data_hdr(struct lttcomm_relayd_sock *sock,
00e2e675 62 struct lttcomm_relayd_data_hdr *hdr, size_t size);
6151a90f 63int relayd_data_pending(struct lttcomm_relayd_sock *sock, uint64_t stream_id,
c8f59ee5 64 uint64_t last_net_seq_num);
6151a90f 65int relayd_quiescent_control(struct lttcomm_relayd_sock *sock,
ad7051c0 66 uint64_t metadata_stream_id);
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67int relayd_begin_data_pending(struct lttcomm_relayd_sock *sock, uint64_t id);
68int relayd_end_data_pending(struct lttcomm_relayd_sock *sock, uint64_t id,
f7079f67 69 unsigned int *is_data_inflight);
1c20f0e2 70int relayd_send_index(struct lttcomm_relayd_sock *rsock,
50adc264 71 struct ctf_packet_index *index, uint64_t relay_stream_id,
1c20f0e2 72 uint64_t net_seq_num);
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73int relayd_reset_metadata(struct lttcomm_relayd_sock *rsock,
74 uint64_t stream_id, uint64_t version);
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75/* `positions` is an array of `stream_count` relayd_stream_rotation_position. */
76int relayd_rotate_streams(struct lttcomm_relayd_sock *sock,
ebb29c10 77 unsigned int stream_count, const uint64_t *new_chunk_id,
c35f9726 78 const struct relayd_stream_rotation_position *positions);
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79int relayd_create_trace_chunk(struct lttcomm_relayd_sock *sock,
80 struct lttng_trace_chunk *chunk);
bbc4768c 81int relayd_close_trace_chunk(struct lttcomm_relayd_sock *sock,
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82 struct lttng_trace_chunk *chunk,
83 char *path);
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84int relayd_trace_chunk_exists(struct lttcomm_relayd_sock *sock,
85 uint64_t chunk_id, bool *chunk_exists);
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86int relayd_get_configuration(struct lttcomm_relayd_sock *sock,
87 uint64_t query_flags,
88 uint64_t *result_flags);
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89
90#endif /* _RELAYD_H */
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