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.
27 #include <lttng/lttng.h>
29 #define RELAYD_VERSION_COMM_MAJOR 2
30 #define RELAYD_VERSION_COMM_MINOR 1
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_sessiond_command */
40 uint32_t cmd_version
; /* command version */
41 } __attribute__ ((__packed__
));
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 */
53 } __attribute__ ((__packed__
));
56 * Used to add a stream on the relay daemon.
58 struct lttcomm_relayd_add_stream
{
59 char channel_name
[LTTNG_SYMBOL_NAME_LEN
];
60 char pathname
[PATH_MAX
];
61 } __attribute__ ((__packed__
));
64 * Answer from an add stream command.
66 struct lttcomm_relayd_status_stream
{
69 } __attribute__ ((__packed__
));
72 * Used to return command code for command not needing special data.
74 struct lttcomm_relayd_generic_reply
{
76 } __attribute__ ((__packed__
));
79 * Used to update synchronization information.
81 struct lttcomm_relayd_update_sync_info
{
82 /* TODO: fill the structure. Feature not implemented yet */
83 } __attribute__ ((__packed__
));
88 struct lttcomm_relayd_version
{
91 } __attribute__ ((__packed__
));
94 * Metadata payload used when metadata command is sent.
96 struct lttcomm_relayd_metadata_payload
{
98 uint32_t padding_size
;
100 } __attribute__ ((__packed__
));
103 * Used to indicate that a specific stream id can now be closed.
105 struct lttcomm_relayd_close_stream
{
107 uint64_t last_net_seq_num
; /* sequence number of last packet */
108 } __attribute__ ((__packed__
));
110 #endif /* _RELAYD_COMM */