Fix lttng view using lttng list sessions
[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
22#define _GNU_SOURCE
23
24#include <limits.h>
25#include <stdint.h>
26
27#include <lttng/lttng.h>
28
29/*
30 * lttng-relayd communication header.
31 */
32struct lttcomm_relayd_hdr {
33 /* Circuit ID not used for now so always ignored */
34 uint64_t circuit_id;
35 uint64_t data_size; /* data size following this header */
36 uint32_t cmd; /* enum lttcomm_sessiond_command */
37 uint32_t cmd_version; /* command version */
38} __attribute__ ((__packed__));
39
40/*
41 * lttng-relayd data header.
42 */
43struct lttcomm_relayd_data_hdr {
44 /* Circuit ID not used for now so always ignored */
45 uint64_t circuit_id;
46 uint64_t stream_id; /* Stream ID known by the relayd */
173af62f 47 uint64_t net_seq_num; /* Network sequence number, per stream. */
b8aa1682
JD
48 uint32_t data_size; /* data size following this header */
49} __attribute__ ((__packed__));
50
b8aa1682
JD
51/*
52 * Used to add a stream on the relay daemon.
53 */
54struct lttcomm_relayd_add_stream {
55 char channel_name[LTTNG_SYMBOL_NAME_LEN];
56 char pathname[PATH_MAX];
57} __attribute__ ((__packed__));
58
59/*
60 * Answer from an add stream command.
61 */
62struct lttcomm_relayd_status_stream {
63 uint64_t handle;
64 uint32_t ret_code;
65} __attribute__ ((__packed__));
66
67/*
68 * Used to return command code for command not needing special data.
69 */
70struct lttcomm_relayd_generic_reply {
71 uint32_t ret_code;
72} __attribute__ ((__packed__));
73
74/*
75 * Used to update synchronization information.
76 */
77struct lttcomm_relayd_update_sync_info {
173af62f 78 /* TODO: fill the structure. Feature not implemented yet */
b8aa1682
JD
79} __attribute__ ((__packed__));
80
81/*
82 * Version command.
83 */
84struct lttcomm_relayd_version {
85 uint32_t major;
86 uint32_t minor;
87} __attribute__ ((__packed__));
88
89/*
90 * Metadata payload used when metadata command is sent.
91 */
92struct lttcomm_relayd_metadata_payload {
93 uint64_t stream_id;
94 char payload[];
95} __attribute__ ((__packed__));
96
173af62f
DG
97/*
98 * Used to indicate that a specific stream id can now be closed.
99 */
100struct lttcomm_relayd_close_stream {
101 uint64_t stream_id;
102 uint64_t last_net_seq_num; /* sequence number of last packet */
103} __attribute__ ((__packed__));
104
b8aa1682 105#endif /* _RELAYD_COMM */
This page took 0.036288 seconds and 4 git commands to generate.