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 } __attribute__ ((__packed__
));
55 * Used to add a stream on the relay daemon.
57 struct lttcomm_relayd_add_stream
{
58 char channel_name
[LTTNG_SYMBOL_NAME_LEN
];
59 char pathname
[PATH_MAX
];
60 } __attribute__ ((__packed__
));
63 * Answer from an add stream command.
65 struct lttcomm_relayd_status_stream
{
68 } __attribute__ ((__packed__
));
71 * Used to return command code for command not needing special data.
73 struct lttcomm_relayd_generic_reply
{
75 } __attribute__ ((__packed__
));
78 * Used to update synchronization information.
80 struct lttcomm_relayd_update_sync_info
{
81 /* TODO: fill the structure. Feature not implemented yet */
82 } __attribute__ ((__packed__
));
87 struct lttcomm_relayd_version
{
90 } __attribute__ ((__packed__
));
93 * Metadata payload used when metadata command is sent.
95 struct lttcomm_relayd_metadata_payload
{
98 } __attribute__ ((__packed__
));
101 * Used to indicate that a specific stream id can now be closed.
103 struct lttcomm_relayd_close_stream
{
105 uint64_t last_net_seq_num
; /* sequence number of last packet */
106 } __attribute__ ((__packed__
));
108 #endif /* _RELAYD_COMM */