2 * Copyright (C) 2012 - David Goulet <dgoulet@efficios.com>
3 * Julien Desfossez <julien.desfossez@efficios.com>
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.
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
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.
25 #include <lttng/lttng.h>
26 #include <common/defaults.h>
27 #include <common/index/ctf-index.h>
29 #define RELAYD_VERSION_COMM_MAJOR VERSION_MAJOR
30 #define RELAYD_VERSION_COMM_MINOR VERSION_MINOR
33 * lttng-relayd communication header.
35 struct lttcomm_relayd_hdr
{
36 /* Circuit ID not used for now so always ignored */
38 uint64_t data_size
; /* data size following this header */
39 uint32_t cmd
; /* enum lttcomm_relayd_command */
40 uint32_t cmd_version
; /* command version */
44 * lttng-relayd data header.
46 struct lttcomm_relayd_data_hdr
{
47 /* Circuit ID not used for now so always ignored */
49 uint64_t stream_id
; /* Stream ID known by the relayd */
50 uint64_t net_seq_num
; /* Network sequence number, per stream. */
51 uint32_t data_size
; /* data size following this header */
52 uint32_t padding_size
; /* Size of 0 padding the data */
56 * Reply from a create session command.
58 struct lttcomm_relayd_status_session
{
64 * Used to add a stream on the relay daemon.
66 struct lttcomm_relayd_add_stream
{
67 char channel_name
[DEFAULT_STREAM_NAME_LEN
];
68 char pathname
[LTTNG_PATH_MAX
];
72 * Used to add a stream on the relay daemon.
73 * Protocol version 2.2
75 struct lttcomm_relayd_add_stream_2_2
{
76 char channel_name
[DEFAULT_STREAM_NAME_LEN
];
77 char pathname
[LTTNG_PATH_MAX
];
78 uint64_t tracefile_size
;
79 uint64_t tracefile_count
;
83 * Answer from an add stream command.
85 struct lttcomm_relayd_status_stream
{
91 * Used to return command code for command not needing special data.
93 struct lttcomm_relayd_generic_reply
{
98 * Used to update synchronization information.
100 struct lttcomm_relayd_update_sync_info
{
101 /* TODO: fill the structure. Feature not implemented yet */
107 struct lttcomm_relayd_version
{
113 * Metadata payload used when metadata command is sent.
115 struct lttcomm_relayd_metadata_payload
{
117 uint32_t padding_size
;
122 * Used to indicate that a specific stream id can now be closed.
124 struct lttcomm_relayd_close_stream
{
126 uint64_t last_net_seq_num
; /* sequence number of last packet */
130 * Used to test if for a given stream id the data is pending on the relayd side
133 struct lttcomm_relayd_data_pending
{
135 uint64_t last_net_seq_num
; /* Sequence number of the last packet */
138 struct lttcomm_relayd_begin_data_pending
{
142 struct lttcomm_relayd_end_data_pending
{
146 struct lttcomm_relayd_quiescent_control
{
153 struct lttcomm_relayd_index
{
154 uint64_t relay_stream_id
;
155 uint64_t net_seq_num
;
156 uint64_t packet_size
;
157 uint64_t content_size
;
158 uint64_t timestamp_begin
;
159 uint64_t timestamp_end
;
160 uint64_t events_discarded
;
162 uint64_t stream_instance_id
;
163 uint64_t packet_seq_num
;
167 * Create session in 2.4 adds additionnal parameters for live reading.
169 struct lttcomm_relayd_create_session_2_4
{
170 char session_name
[LTTNG_NAME_MAX
];
171 char hostname
[LTTNG_HOST_NAME_MAX
];
177 * Used to ask the relay to reset the metadata trace file (regeneration).
178 * Send the new version of the metadata (starts at 0).
180 struct lttcomm_relayd_reset_metadata
{
185 #endif /* _RELAYD_COMM */