Add .clang-format
[lttng-tools.git] / src / common / sessiond-comm / relayd.h
CommitLineData
b8aa1682
JD
1/*
2 * Copyright (C) 2012 - David Goulet <dgoulet@efficios.com>
3 * Julien Desfossez <julien.desfossez@efficios.com>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License, version 2 only,
7 * as published by the Free Software Foundation.
8 *
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
12 * more details.
13 *
14 * You should have received a copy of the GNU General Public License along
15 * with this program; if not, write to the Free Software Foundation, Inc.,
16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
17 */
18
19#ifndef _RELAYD_COMM
20#define _RELAYD_COMM
21
b8aa1682
JD
22#include <limits.h>
23#include <stdint.h>
24
25#include <lttng/lttng.h>
ce2a9e76 26#include <common/defaults.h>
50adc264 27#include <common/index/ctf-index.h>
aa52c986 28#include <common/macros.h>
658f12fa 29#include <common/compat/uuid.h>
f39bd140 30#include <common/optional.h>
b8aa1682 31
6947778e
MD
32#define RELAYD_VERSION_COMM_MAJOR VERSION_MAJOR
33#define RELAYD_VERSION_COMM_MINOR VERSION_MINOR
0a6b5085 34
1c17e424
JR
35#define RELAYD_COMM_LTTNG_HOST_NAME_MAX_2_4 64
36#define RELAYD_COMM_LTTNG_NAME_MAX_2_4 255
37#define RELAYD_COMM_LTTNG_PATH_MAX 4096
38#define RELAYD_COMM_DEFAULT_STREAM_NAME_LEN 264 /* 256 + 8 */
39
b8aa1682
JD
40/*
41 * lttng-relayd communication header.
42 */
43struct lttcomm_relayd_hdr {
44 /* Circuit ID not used for now so always ignored */
45 uint64_t circuit_id;
46 uint64_t data_size; /* data size following this header */
7c9534d6 47 uint32_t cmd; /* enum lttcomm_relayd_command */
b8aa1682 48 uint32_t cmd_version; /* command version */
a9e87764 49} LTTNG_PACKED;
b8aa1682
JD
50
51/*
52 * lttng-relayd data header.
53 */
54struct lttcomm_relayd_data_hdr {
55 /* Circuit ID not used for now so always ignored */
56 uint64_t circuit_id;
57 uint64_t stream_id; /* Stream ID known by the relayd */
173af62f 58 uint64_t net_seq_num; /* Network sequence number, per stream. */
b8aa1682 59 uint32_t data_size; /* data size following this header */
1d4dfdef 60 uint32_t padding_size; /* Size of 0 padding the data */
a9e87764 61} LTTNG_PACKED;
b8aa1682 62
c5b6f4f0
DG
63/*
64 * Reply from a create session command.
65 */
66struct lttcomm_relayd_status_session {
67 uint64_t session_id;
68 uint32_t ret_code;
a9e87764 69} LTTNG_PACKED;
c5b6f4f0 70
b8aa1682
JD
71/*
72 * Used to add a stream on the relay daemon.
73 */
74struct lttcomm_relayd_add_stream {
1c17e424
JR
75 char channel_name[RELAYD_COMM_DEFAULT_STREAM_NAME_LEN];
76 char pathname[RELAYD_COMM_LTTNG_PATH_MAX];
a9e87764 77} LTTNG_PACKED;
b8aa1682 78
0f907de1
JD
79/*
80 * Used to add a stream on the relay daemon.
81 * Protocol version 2.2
82 */
83struct lttcomm_relayd_add_stream_2_2 {
1c17e424
JR
84 char channel_name[RELAYD_COMM_DEFAULT_STREAM_NAME_LEN];
85 char pathname[RELAYD_COMM_LTTNG_PATH_MAX];
0f907de1
JD
86 uint64_t tracefile_size;
87 uint64_t tracefile_count;
88} LTTNG_PACKED;
89
2f21a469
JR
90struct lttcomm_relayd_add_stream_2_11 {
91 uint32_t channel_name_len;
92 uint32_t pathname_len;
93 uint64_t tracefile_size;
94 uint64_t tracefile_count;
0b50e4b3 95 uint64_t trace_archive_id;
2f21a469
JR
96 char names[];
97} LTTNG_PACKED;
98
b8aa1682
JD
99/*
100 * Answer from an add stream command.
101 */
102struct lttcomm_relayd_status_stream {
103 uint64_t handle;
104 uint32_t ret_code;
a9e87764 105} LTTNG_PACKED;
b8aa1682
JD
106
107/*
108 * Used to return command code for command not needing special data.
109 */
110struct lttcomm_relayd_generic_reply {
111 uint32_t ret_code;
a9e87764 112} LTTNG_PACKED;
b8aa1682 113
b8aa1682
JD
114/*
115 * Version command.
116 */
117struct lttcomm_relayd_version {
118 uint32_t major;
119 uint32_t minor;
a9e87764 120} LTTNG_PACKED;
b8aa1682
JD
121
122/*
123 * Metadata payload used when metadata command is sent.
124 */
125struct lttcomm_relayd_metadata_payload {
126 uint64_t stream_id;
1d4dfdef 127 uint32_t padding_size;
b8aa1682 128 char payload[];
a9e87764 129} LTTNG_PACKED;
b8aa1682 130
173af62f
DG
131/*
132 * Used to indicate that a specific stream id can now be closed.
133 */
134struct lttcomm_relayd_close_stream {
135 uint64_t stream_id;
136 uint64_t last_net_seq_num; /* sequence number of last packet */
a9e87764 137} LTTNG_PACKED;
173af62f 138
c8f59ee5 139/*
6d805429
DG
140 * Used to test if for a given stream id the data is pending on the relayd side
141 * for reading.
c8f59ee5 142 */
6d805429 143struct lttcomm_relayd_data_pending {
c8f59ee5
DG
144 uint64_t stream_id;
145 uint64_t last_net_seq_num; /* Sequence number of the last packet */
a9e87764 146} LTTNG_PACKED;
c8f59ee5 147
f7079f67
DG
148struct lttcomm_relayd_begin_data_pending {
149 uint64_t session_id;
a9e87764 150} LTTNG_PACKED;
f7079f67
DG
151
152struct lttcomm_relayd_end_data_pending {
153 uint64_t session_id;
a9e87764 154} LTTNG_PACKED;
f7079f67 155
ad7051c0
DG
156struct lttcomm_relayd_quiescent_control {
157 uint64_t stream_id;
158} LTTNG_PACKED;
159
1c20f0e2
JD
160/*
161 * Index data.
162 */
163struct lttcomm_relayd_index {
164 uint64_t relay_stream_id;
165 uint64_t net_seq_num;
166 uint64_t packet_size;
167 uint64_t content_size;
168 uint64_t timestamp_begin;
169 uint64_t timestamp_end;
170 uint64_t events_discarded;
171 uint64_t stream_id;
f8f3885c 172 /* 2.8+ */
234cd636
JD
173 uint64_t stream_instance_id;
174 uint64_t packet_seq_num;
1c20f0e2
JD
175} LTTNG_PACKED;
176
f8f3885c
MD
177static inline size_t lttcomm_relayd_index_len(uint32_t major, uint32_t minor)
178{
179 if (major == 1) {
180 switch (minor) {
181 case 0:
182 return offsetof(struct lttcomm_relayd_index, stream_id)
183 + member_sizeof(struct lttcomm_relayd_index,
184 stream_id);
185 case 1:
186 return offsetof(struct lttcomm_relayd_index, packet_seq_num)
187 + member_sizeof(struct lttcomm_relayd_index,
188 packet_seq_num);
189 default:
190 abort();
191 }
192 }
193 abort();
194}
195
d3e2ba59
JD
196/*
197 * Create session in 2.4 adds additionnal parameters for live reading.
198 */
199struct lttcomm_relayd_create_session_2_4 {
1c17e424
JR
200 char session_name[RELAYD_COMM_LTTNG_NAME_MAX_2_4];
201 char hostname[RELAYD_COMM_LTTNG_HOST_NAME_MAX_2_4];
d3e2ba59 202 uint32_t live_timer;
7d2f7452 203 uint32_t snapshot;
d3e2ba59
JD
204} LTTNG_PACKED;
205
f86f6389
JR
206struct lttcomm_relayd_create_session_2_11 {
207 uint32_t session_name_len;
208 uint32_t hostname_len;
209 uint32_t live_timer;
210 uint8_t snapshot;
658f12fa
JG
211 /* Sessiond instance UUID */
212 lttng_uuid sessiond_uuid;
213 /* Sessiond session id */
214 uint64_t session_id;
f39bd140 215 LTTNG_OPTIONAL_COMM(uint64_t) current_chunk_id;
f86f6389
JR
216 /* Contains the session_name and hostname */
217 char names[];
218} LTTNG_PACKED;
219
93ec662e
JD
220/*
221 * Used to ask the relay to reset the metadata trace file (regeneration).
222 * Send the new version of the metadata (starts at 0).
223 */
224struct lttcomm_relayd_reset_metadata {
225 uint64_t stream_id;
226 uint64_t version;
227} LTTNG_PACKED;
228
d3ecc550
JD
229struct lttcomm_relayd_rotate_stream {
230 uint64_t stream_id;
d73bf3d7 231 /* Ignored for metadata streams. */
d3ecc550
JD
232 uint64_t rotate_at_seq_num;
233 uint64_t new_chunk_id;
234 /* Includes trailing NULL. */
235 uint32_t pathname_length;
236 /* Must be the last member of this structure. */
237 char new_pathname[];
238} LTTNG_PACKED;
239
b8aa1682 240#endif /* _RELAYD_COMM */
This page took 0.085806 seconds and 4 git commands to generate.